bluuebunny/crossref_metadata_2025 huggingface dataset:
Protein O-mannosylation deficiency increases LprG-associated lipoarabinomannan release by Mycobacterium tuberculosis and enhances the TLR2-associated inflammatory response
Authors: Alonso Henar , Parra Julien , Malaga Wladimir , Payros Delphine , Liu Chia-Fang , Berrone Céline , Robert Camille , Meunier Etienne , Burlet-Schiltz Odile , Rivière Michel , Guilhot Christophe
Published: August 2017

Protein O-mannosylation is crucial for the biology of Mycobacterium tuberculosis but the key mannosylated protein(s) involved and its(their) underlying function(s) remain unknown. Here, we demonstrated that the M. tuberculosis mutant (Δpmt) deficient for protein O-mannosylation exhibits enhanced release of lipoarabinomannan (LAM) in a complex with LprG, a lipoprotein required for LAM translocation to the cell surface. We determined that LprG is O-mannosylated at a unique threonine position by mass spectrometry analyses of the purified protein. However, although replacement of this amino acid by an alanine residue completely abolished LprG O-mannosylation, the increased release of the LAM/LprG complex was preserved. We found that the increased secretion of this complex is due to enhanced LAM production in the Δpmt M. tuberculosis and M. smegmatis mutants relative to their wild-type counterparts. This abnormal release of LAM/LprG has functional consequences on the induction of inflammatory responses and provides a possible explanation for the reduced virulence of the M. tuberculosis Δpmt mutant.
Efficient generation of conditional knockout mice via sequential introduction of lox sites
Authors: Horii Takuro , Morita Sumiyo , Kimura Mika , Terawaki Naomi , Shibutani Mihiro , Hatada Izuho
Published: August 2017

Conditional knockout using Cre/lox is essential for functional analysis of genes. CRISPR/Cas in combination with two sets of guide RNAs and a single-stranded oligonucleotide enables simultaneous insertion of two lox sequences. However, this method induces double-strand breaks at two sites on the same chromosome, which causes an undesirable chromosomal deletion and reduces the flanked lox (flox) rate. To solve this problem, we investigated a method that sequentially introduces each lox sequence at the 1-cell and 2-cell embryonic stages, respectively. The sequential method was applied to both microinjection and electroporation systems. Sequential electroporation improved the flox efficiency compared with ordinary simultaneous microinjection, leading to a high yield of offspring with floxed alleles. Finally, we directly produced Cre/lox mice containing both the Cre transgene and floxed allele via sequential electroporation using Cre zygotes, which accelerated the generation of conditional knockout mice compared with the ordinary method.
An effective combination of whole-exome sequencing and runs of homozygosity for the diagnosis of primary ciliary dyskinesia in consanguineous families
Authors: Guo Ting , Tan Zhi-Ping , Chen Hua-Mei , Zheng Dong-yuan , liu Lv , Huang Xin-Gang , Chen Ping , Luo Hong , Yang Yi-Feng
Published: August 2017

Primary ciliary dyskinesia (PCD) is clinically characterized by neonatal respiratory distress, chronic sinusitis, bronchiectasis and infertility, and situs inversus in 50% of the patients. PCD is a result of mutations in genes encoding proteins involved in ciliary function, and is primarily inherited in an autosomal recessive fashion. Diagnosis of PCD is often a challenging task due to its high clinical and genetic heterogeneities. In the present study, we attempted to use whole-exome sequencing (WES) combined with runs of homozygosity (ROH) approaches to identify the genetic defects in four Chinese consanguineous families with clinical PCD. We successfully identified three recently acknowledged PCD genes: DYX1C1, CCNO and ARMC4, and one well-characterized PCD gene, DNAI1. Our study provides compelling evidence that WES in combination with ROH analysis is an efficient diagnostic tool for identifying genetic causes of PCD in consanguineous families. Furthermore, our work expands the genetic mutation spectrum in PCD, and provides the additional tools to better serve the counseling of the families with PCD.
A synthesis of soil carbon and nitrogen recovery after wetland restoration and creation in the United States
Authors: Yu Lingfei , Huang Yao , Sun Feifei , Sun Wenjuan
Published: August 2017

Wetland restoration and creation efforts have been widely attempted as a way to compensate for wetland losses and to recover wetland functions; however, to date, there has been no comprehensive evaluation of the efficacy of soil carbon (C) and nitrogen (N) content recovery at a regional scale. This meta-analysis synthesizes 48 articles to identify the general patterns of soil C and N change after wetland restoration and creation in the United States. Our results indicate that, after 11–20 years, soil C and N in restored and created wetlands are still significantly lower by 51.7% and 50.3%, respectively, than those in natural wetlands. The soil C and N in restored wetlands recovered faster than in created wetlands. Furthermore, the soil C in restored organic flat and created depressional wetlands recovered more rapidly than in restored and created hydrologically open wetlands (riverine and tidal), respectively. Mean annual temperature and soil texture were recognized as two crucial abiotic factors affecting soil C and N recovery. Linear regression analysis revealed a positive relationship between the restoration and creation effect sizes on soil C and N, indicating that wetlands may alleviate N limitations intrinsically during C recovery processes.
Basophils contribute to pristane-induced Lupus-like nephritis model
Authors: Dema Barbara , Lamri Yasmine , Pellefigues Christophe , Pacreau Emeline , Saidoune Fanny , Bidault Caroline , Karasuyama Hajime , Sacré Karim , Daugas Eric , Charles Nicolas
Published: August 2017

Lupus nephritis (LN), one of the most severe outcomes of systemic lupus erythematosus (SLE), is initiated by glomerular deposition of immune-complexes leading to an inflammatory response and kidney failure. Autoantibodies to nuclear antigens and autoreactive B and T cells are central in SLE pathogenesis. Immune mechanisms amplifying this autoantibody production drive flares of the disease. We previously showed that basophils were contributing to LN development in a spontaneous lupus-like mouse model (constitutive Lyn−/− mice) and in SLE subjects through their activation and migration to secondary lymphoid organs (SLOs) where they amplify autoantibody production. In order to study the basophil-specific mechanisms by which these cells contribute to LN development, we needed to validate their involvement in a genetically independent SLE-like mouse model. Pristane, when injected to non-lupus-prone mouse strains, induces a LN-like disease. In this inducible model, basophils were activated and accumulated in SLOs to promote autoantibody production. Basophil depletion by two distinct approaches dampened LN-like disease, demonstrating their contribution to the pristane-induced LN model. These results enable further studies to decipher molecular mechanisms by which basophils contribute to lupus progression.
Delayed fractional dose regimen of the RTS,S/AS01 malaria vaccine candidate enhances an IgG4 response that inhibits serum opsonophagocytosis
Authors: Chaudhury Sidhartha , Regules Jason A. , Darko Christian A. , Dutta Sheetij , Wallqvist Anders , Waters Norman C. , Jongert Erik , Lemiale Franck , Bergmann-Leitner Elke S.
Published: August 2017

A recent study of the RTS,S malaria vaccine, which is based on the circumsporozoite protein (CSP), demonstrated an increase in efficacy from 50–60% to 80% when using a delayed fractional dose regimen, in which the standard 0–1–2 month immunization schedule was modified to a 0–1–7 month schedule and the third immunization was delivered at 20% of the full dose. Given the role that antibodies can play in RTS,S-induced protection, we sought to determine how the modified regimen alters IgG subclasses and serum opsonophagocytic activity (OPA). Previously, we showed that lower CSP-mediated OPA was associated with protection in an RTS,S study. Here we report that the delayed fractional dose regimen resulted in decreased CSP-mediated OPA and an enhanced CSP-specific IgG4 response. Linear regression modeling predicted that CSP-specific IgG1 promote OPA, and that CSP-specific IgG4 interferes with OPA, which we subsequently confirmed by IgG subclass depletion. Although the role of IgG4 antibodies and OPA in protection is still unclear, our findings, combined with previous results that the delayed fractional dose increases CSP-specific antibody avidity and somatic hypermutation frequency in CSP-specific B cells, demonstrate how changes in vaccine regimen alone can significantly alter the quality of antibody responses to improve vaccine efficacy.
Identification of mega-environments and rice genotypes for general and specific adaptation to saline and alkaline stresses in India
Authors: Krishnamurthy S. L. , Sharma P. C. , Sharma D. K. , Ravikiran K. T. , Singh Y. P. , Mishra V. K. , Burman D. , Maji B. , Mandal S. , Sarangi S. K. , Gautam R. K. , Singh P. K. , Manohara K. K. , Marandi B. C. , Padmavathi G. , Vanve P. B. , Patil K. D. , Thirumeni S. , Verma O. P. , Khan A. H. , Tiwari S. , Geetha S. , Shakila M. , Gill R , Yadav V. K. , Roy S. K. B. , Prakash M. , Bonifacio J. , Ismail Abdelbagi , Gregorio G. B. , Singh Rakesh Kumar
Published: August 2017

In the present study, a total of 53 promising salt-tolerant genotypes were tested across 18 salt-affected diverse locations for three years. An attempt was made to identify ideal test locations and mega-environments using GGE biplot analysis. The CSSRI sodic environment was the most discriminating location in individual years as well as over the years and could be used to screen out unstable and salt-sensitive genotypes. Genotypes CSR36, CSR-2K-219, and CSR-2K-262 were found ideal across years. Overall, Genotypes CSR-2K-219, CSR-2K-262, and CSR-2K-242 were found superior and stable among all genotypes with higher mean yields. Different sets of genotypes emerged as winners in saline soils but not in sodic soils; however, Genotype CSR-2K-262 was the only genotype that was best under both saline and alkaline environments over the years. The lack of repeatable associations among locations and repeatable mega-environment groupings indicated the complexity of soil salinity. Hence, a multi-location and multi-year evaluation is indispensable for evaluating the test sites as well as identifying genotypes with consistently specific and wider adaptation to particular agro-climatic zones. The genotypes identified in the present study could be used for commercial cultivation across edaphically challenged areas for sustainable production.
Bone histology sheds new light on the ecology of the dodo (Raphus cucullatus, Aves, Columbiformes)
Authors: Angst D. , Chinsamy A. , Steel L. , Hume J. P.
Published: August 2017

The dodo,Raphus cucullatus, a flightless pigeon endemic to Mauritius, became extinct during the 17thcentury due to anthropogenic activities. Although it was contemporaneous with humans for almost a century, little was recorded about its ecology. Here we present new aspects of the life history of the dodo based on our analysis of its bone histology. We propose that the dodo bred around August and that the rapid growth of the chicks enabled them to reach a robust size before the austral summer or cyclone season. Histological evidence of molting suggests that after summer had passed, molt began in the adults that had just bred; the timing of molt derived from bone histology is also corroborated by historical descriptions of the dodo by mariners. This research represents the only bone histology analysis of the dodo and provides an unprecedented insight into the life history of this iconic bird.
Optically Isotropic, Colorless, and Flexible PITEs/TiO2 and ZrO2 Hybrid Films with Tunable Refractive Index, Abbe Number, and Memory Properties
Authors: Huang Tzu-Tien , Cheng Shun-Wen , Tsai Chia-Liang , Liou Guey-Sheng
Published: August 2017

A series of novel polyimidothioethers (PITEs) and the respective polymer hybrids of titania or zirconia with fantastic thermal stability and optical properties have been successfully prepared. These colorless PITEs with high transparency were synthesized by Michael polyaddition from commercially available dithiol and bismaleimides monomers. The PITE with sulfide and hydroxyl groups (S-OH) and the corresponding hybrid films declare ultra-lowest birefringence value of 0.002 and tunable refractive index (1.65–1.81 for S-OH/titania and 1.65–1.80 for S-OH/zirconia), implying large potential to the optical applications in the future. Moreover, the S-OH/zirconia hybrid films exhibit higher Abbe’s number and optical transparency than those of S-OH/titania system because larger energy band gap of ZrO2. Furthermore, by adding titania and zirconia as electron acceptor into S-OH system, the charge transfer complex can be facilitated and stabilized caused by the lower LUMO energy level of hybrid materials. Consequently, the devices of memory prepared from these polymer films of hybrid showed interesting and adjustable memory behavior from DRAM, SRAM, to WORM at various titania or zirconia contents with a large ON/OFF ratio (108), denoting that the memory devices derived from these highly transparent novel S-OH/TiO2 and S-OH/ZrO2 hybrid films are attractive for the electrical applications.
Fault reactivation and earthquakes with magnitudes of up to Mw4.7 induced by shale-gas hydraulic fracturing in Sichuan Basin, China
Authors: Lei Xinglin , Huang Dongjian , Su Jinrong , Jiang Guomao , Wang Xiaolong , Wang Hui , Guo Xin , Fu Hong
Published: August 2017

This paper presents a timely and detailed study of significant injection-induced seismicity recently observed in the Sichuan Basin, China, where shale-gas hydraulic fracturing has been initiated and the aggressive production of shale gas is planned for the coming years. Multiple lines of evidence, including an epidemic-type aftershock sequence model, relocated hypocenters, the mechanisms of 13 large events (M
W
 > 3.5), and numerically calculated Coulomb failure stress results, convincingly suggest that a series of earthquakes with moment magnitudes up to M
W
4.7 has been induced by “short-term” (several months at a single well pad) injections for hydraulic fracturing at depths of 2.3 to 3 km. This, in turn, supports the hypothesis that they represent examples of injection-induced fault reactivation. The geologic reasons why earthquake magnitudes associated with hydraulic fracturing operations are so high in this area are discussed. Because hydraulic fracturing operations are on the rise in the Sichuan Basin, it would be beneficial for the geoscience, gas operator, regulator, and academic communities to work collectively to elucidate the local factors governing the high level of injection-induced seismicity, with the ultimate goal of ensuring that shale gas fracking can be carried out effectively and safely.
Sample entropy reveals an age-related reduction in the complexity of dynamic brain
Authors: Jia Yanbing , Gu Huaguang , Luo Qiang
Published: August 2017

Dynamic reconfiguration of the human brain is characterized by the nature of complexity. The purpose of this study was to measure such complexity and also analyze its association with age. We modeled the dynamic reconfiguration process by dynamic functional connectivity, which was established by resting-state functional magnetic resonance imaging (fMRI) data, and we measured complexity within the dynamic functional connectivity by sample entropy (SampEn). A brainwide map of SampEn in healthy subjects shows larger values in the caudate, the olfactory gyrus, the amygdala, and the hippocampus, and lower values in primary sensorimotor and visual areas. Association analysis in healthy subjects indicated that SampEn of the amygdala-cortical connectivity decreases with advancing age. Such age-related loss of SampEn, however, disappears in patients with schizophrenia. These findings suggest that SampEn of the dynamic functional connectivity is a promising indicator of normal aging.
In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour
Authors: Stitt C. A. , Paraskevoulakos C. , Banos A. , Harker N. J. , Hallam K. R. , Davenport A. , Street S. , Scott T. B.
Published: August 2017

Uranium encapsulated in grout was exposed to water vapour for extended periods of time. Through synchrotron x-ray powder diffraction and tomography measurements, uranium dioxide was determined the dominant corrosion product over a 50-week time period. The oxide growth rate initiated rapidly, with rates comparable to the U + H2O reaction. Over time, the reaction rate decreased and eventually plateaued to a rate similar to the U + H2O + O2 reaction. This behaviour was not attributed to oxygen ingress, but instead the decreasing permeability of the grout, limiting oxidising species access to the metal surface.
Thermally-assisted Magma Emplacement Explains Restless Calderas
Authors: Amoruso Antonella , Crescentini Luca , D’Antonio Massimo , Acocella Valerio
Published: August 2017

Many calderas show repeated unrest over centuries. Though probably induced by magma, this unique behaviour is not understood and its dynamics remains elusive. To better understand these restless calderas, we interpret deformation data and build thermal models of Campi Flegrei caldera, Italy. Campi Flegrei experienced at least 4 major unrest episodes in the last decades. Our results indicate that the inflation and deflation of magmatic sources at the same location explain most deformation, at least since the build-up of the last 1538 AD eruption. However, such a repeated magma emplacement requires a persistently hot crust. Our thermal models show that this repeated emplacement was assisted by the thermal anomaly created by magma that was intruded at shallow depth ~3 ka before the last eruption. This may explain the persistence of the magmatic sources promoting the restless behaviour of the Campi Flegrei caldera; moreover, it explains the crystallization, re-melting and mixing among compositionally distinct magmas recorded in young volcanic rocks. Our model of thermally-assisted unrest may have a wider applicability, possibly explaining also the dynamics of other restless calderas.
CRP-level-associated polymorphism rs1205 within the CRP gene is associated with 2-hour glucose level: The SAPPHIRe study
Authors: Sheu Wayne Huey-Herng , Wang Wen-Chang , Wu Kwan-Dun , He Chih-Tsueng , Hwu Chii-Min , Quertermous Thomas , Hsieh Wan-Shan , Lee Wen-Jane , Ting Chih-Tai , Chen Yii-Der I. , Hsiung Chao A.
Published: August 2017

C-reactive protein (CRP) encoded by CRP gene is a reflection of systemic inflammation. Many studies associated CRP level with diabetes and glucose levels, but the association of CRP gene with these traits is unclear. We conducted a cross-sectional study consisting of 945 siblings from 330 families collected by the Stanford Asian Pacific Program in Hypertension and Insulin Resistance (SAPPHIRe) to investigate associations between CRP polymorphisms, circulating CRP, diabetes, and glucose levels. Five single-nucleotide polymorphisms were analyzed: rs3093059, rs2794521, rs1417938, rs1800947, and rs1205. The generalized estimating equation approach was used to deal with correlated data within families. CRP level was positively correlated with diabetes prevalence and levels of fasting and 2-hour glucose (each P < 0.008). Alleles C at rs3093059 and G at rs1205 were associated with elevated CRP level (each P < 1.2 × 10−6). Allele C at rs3093059 was associated with fasting glucose (β = 0.20, P = 0.045) and G at rs1205 was associated with 2-hour glucose (β = 0.46, P = 0.00090) post oral glucose tolerance test, but only the latter passed Bonferroni correction. No polymorphism was associated with diabetes. Since 2-hour glucose is an indicator of glucose tolerance, this study indicated CRP gene is associated with glucose intolerance.
Bumblebee colony development following chronic exposure to field-realistic levels of the neonicotinoid pesticide thiamethoxam under laboratory conditions
Authors: Stanley Dara A. , Raine Nigel E.
Published: August 2017

Neonicotinoid pesticides are used in agriculture to reduce damage from crop pests. However, beneficial insects such as bees can come into contact with these pesticides when foraging in treated areas, with potential consequences for bee declines and pollination service delivery. Honeybees are typically used as a model organism to investigate insecticide impacts on bees, but relatively little is known about impacts on other taxa such as bumblebees. In this experiment, we chronically exposed whole mature bumblebee (Bombus terrestris) colonies to field-realistic levels of the neonicotinoid thiamethoxam (2.4ppb & 10ppb) over four weeks, and compared colony growth under laboratory conditions. We found no impact of insecticide exposure on colony weight gain, or the number or mass of sexuals produced, although colonies exposed to 2.4ppb produced larger males. As previous studies have reported pesticide effects on bumblebee colony growth, this may suggest that impacts on bumblebee colonies are more pronounced for colonies at an earlier stage in the reproductive cycle. Alternatively, it may also indicate that thiamethoxam differs in toxicity compared to previously tested neonicotinoids in terms of reproductive effects. In either case, assessing bumblebee colony development under field conditions is likely more informative for real world scenarios than tests conducted in laboratory conditions.
Fast gradient normal-phase high pressure liquid chromatography for rapid baseline separation of vitamin E forms in palm-derived tocotrienol rich fractions (TRFs)
Authors: Tan Oon Hock , Tan Emily Hui Peng , Ooi Ing Hong
Published: August 2017

A normal phase high pressure liquid chromatographic method was developed for the simultaneous determination of nine vitamin E forms comprised of α-tocomonoenol, α-, β-, γ-, and δ-tocopherols and α-, β-, γ-, and δ-tocotrienols in tocotrienol rich fractions (TRFs) derived from palm oil.
Ionic liquid based in situ solvent formation microextraction followed by on-line phase separation coupled with cold vapor-atomic absorption spectrometry for mercury determination in seafood samples
Authors: Molaei Saeideh , Seidi Shahram , Saleh Abolfazl , Ghoulipour Vanik
Published: August 2017

Ionic liquid based in situ solvent formation microextraction followed by on-line phase separation coupled with CV-AAS for mercury analysis.
Ultrasensitive and selective colorimetric detection of acetamiprid pesticide based on the enhanced peroxidase-like activity of gold nanoparticles
Authors: Yang Wenping , Wu Yuangen , Tao Han , Zhao Jing , Chen Huayun , Qiu Shuyi
Published: August 2017

A colorimetric aptasensor based on the peroxidase activity of AuNPs has been proposed for the rapid and ultrasensitive detection of acetamiprid.
Tuning the aggregation/disaggregation behaviours of ZnSe quantum dots for high-sensitivity fluorescent rutin sensors
Authors: Tang Yurong , Yan Shuguang , Ye Hang , Zheng Fenglan , Feng Liu , Liu Feng , Li Xulong
Published: August 2017

The design of quantum dots as a new sensing platform is very important for developing high-sensitivity fluorescent sensors.
Competitive affinity-based proteome profiling and imaging to reveal potential cellular targets of betulinic acid
Authors: Guo Haijun , Xu Jiaqian , Hao Piliang , Ding Ke , Li Zhengqiu
Published: August 2017

Affinity-based proteome profiling (AfBP) coupled with bioimaging to uncover cellular targets of betulinic acid.
Spectroscopic characterization of (diiodomethyl)zinc iodide: application to the stereoselective synthesis and functionalization of iodocyclopropanes
Authors: Allouche Emmanuelle M. D. , Taillemaud Sylvain , Charette André B.
Published: August 2017

Herein are described more efficient methodologies for the synthesis of highly substituted cyclopropanes as well as the first characterization of a diiodomethylzinc carbenoid.
Benzotrifuran (BTFuran): a building block for π-conjugated systems
Authors: Ferreira Renan B. , Figueroa Jose M. , Fagnani Danielle E. , Abboud Khalil A. , Castellano Ronald K.
Published: August 2017

Reported here is the first synthesis, X-ray crystal structure, and derivatization of C3h-symmetric benzotrifuran (BTFuran), oxygen analog of the widely exploited benzotrithiophene.
Condensing the information in DNA with double-headed nucleotides
Authors: Hornum Mick , Sharma Pawan K. , Reslow-Jacobsen Charlotte , Kumar Pawan , Petersen Michael , Nielsen Poul
Published: August 2017

Double-headed nucleotides can structurally imitate dinucleotides without compromising binding affinity. Thus the same DNA information is condensed onto fewer phosphates.
The extraordinary impact of Michael Faraday on chemistry and related subjects
Authors: Thomas John Meurig
Published: August 2017

To mark the sesquicentenary of his passing, this editorial, by one of Michael Faraday’s distant successors as Director and Fullerian Professor at the RI, focuses on Faraday's output and influence as a scientist.
The RSC Faraday prize lecture of 1989 on platinum
Authors: Thomas John Meurig
Published: August 2017

This article outlines many of Michael Faraday's views on, and experiments with, platinum. It also describes the continuing importance and utilization of platinum, both as perceived in 1989 and from present perspectives.
SAXS on a chip: from dynamics of phase transitions to alignment phenomena at interfaces studied with microfluidic devices
Authors: Silva Bruno F. B.
Published: August 2017

Microfluidic devices allow actuation on the microscale, while in situ SAXS allows visualization of these effects in relevant systems.
All-atom MD indicates ion-dependent behavior of therapeutic DNA polymer
Authors: Melvin Ryan L. , Gmeiner William H. , Salsbury Freddie R.
Published: August 2017

Understanding the efficacy of and creating delivery mechanisms for therapeutic nucleic acids requires understanding structural and kinetic properties which allow these polymers to promote the death of cancerous cells.
Helium-3 gas self-diffusion in a nematically ordered aerogel at low temperatures: enhanced role of adsorption
Authors: Kuzmin Vyacheslav , Safiullin Kajum , Stanislavovas Andrey , Tagirov Murat
Published: August 2017

The unpredictably enhanced role of adsorption effects on gas diffusion in an oriented aerogel is demonstrated.
External electric field control: driving the reactivity of metal-free azide–alkyne click reactions
Authors: Bhattacharyya Kalishankar , Karmakar Sharmistha , Datta Ayan
Published: August 2017

An external electric field is demonstrated as an efficient catalyst to accelerate click reactions.
Defluorination and covalent grafting of fluorinated graphene with TEMPO in a radical mechanism
Authors: Lai Wenchuan , Xu Dazhou , Wang Xu , Wang Zaoming , Liu Yang , Zhang Xiaojiao , Li Yulong , Liu Xiangyang
Published: August 2017

The work innovatively reveals the radical mechanism of derivative reactions of fluorinated graphene including its defluorination and covalent grafting, meanwhile first confirming the destination of deciduous fluorine atoms after defluorination.
Na-promoted Ni/ZrO2dry reforming catalyst with high efficiency: details of Na2O–ZrO2–Ni interaction controlling activity and coke formation
Authors: Németh M. , Srankó D. , Károlyi J. , Somodi F. , Schay Z. , Sáfrán G. , Sajó I. , Horváth A.
Published: August 2017

Balanced, strong interaction of Ni–Na2O–ZrO2catalyst components under CO2reforming of methane is a criterion of good catalytic activity and stability.
Simple quantification of zeolite acid site density by reactive gas chromatography
Authors: Abdelrahman Omar A. , Vinter Katherine P. , Ren Limin , Xu Dandan , Gorte Raymond J. , Tsapatsis Michael , Dauenhauer Paul J.
Published: August 2017

The Brønsted acid site densities of ZSM-5, BEA and single unit cell self-pillared pentasil (SPP) zeolites of varying Si/Al ratios were measured using a new technique, reactive gas chromatography (RGC), which utilizes alkylamine decomposition to selectively count Brønsted acid sites.
Hierarchical core–shell SiO2@PDA@BiOBr microspheres with enhanced visible-light-driven photocatalytic performance
Authors: Zhu Shuai-Ru , Qi Qi , Zhao Wen-Na , Wu Meng-Ke , Fang Yuan , Tao Kai , Yi Fei-Yan , Han Lei
Published: August 2017

The SiO2@PDA@BiOBr composite photocatalyst with a hierarchical core–shell structure was prepared by a facile solvothermal method, and the catalyst shows a superior performance on photodegradation of Rhodamine B under visible light irradiation.
Controllable synthesis of inorganic–organic Zn1−xCdxS-DETA solid solution nanoflowers and their enhanced visible-light photocatalytic hydrogen-production performance
Authors: Lv Jiali , Zhang Jinfeng , Dai Kai , Liang Changhao , Zhu Guangping , Wang Zhongliao , Li Zhen
Published: August 2017

Sustainable photocatalytic hydrogen evolution (PHE) of water splitting has been utilized to solve the serious environmental pollution and energy shortage problems over the last decade.
A comparative study of optical properties and X-ray induced luminescence of octahedral molybdenum and tungsten cluster complexes
Authors: Evtushok Darya V. , Melnikov Anatoly R. , Vorotnikova Natalya A. , Vorotnikov Yuri A. , Ryadun Alexey A. , Kuratieva Natalia V. , Kozyr Konstantin V. , Obedinskaya Natalia R. , Kretov Evgeniy I. , Novozhilov Igor N. , Mironov Yuri V. , Stass Dmitri V. , Efremova Olga A. , Shestopalov Michael A.
Published: August 2017

Octahedral W cluster complexes have more intensive X-ray excited optical luminescence than Mo ones.
Reentrant spin glass behavior and magnetodielectric coupling of an Ir-based double perovskite compound, La2CoIrO6
Authors: Song Jiyue , Zhao Bangchuan , Yin Lihua , Qin Yanfeng , Zhou Jiafeng , Wang Dong , Song Wenhai , Sun Yuping
Published: August 2017

The spin glass behavior and the magnetodielectric coupling effect of an Ir-based double perovskite compound, La2CoIrO6.
Ruthenium-catalyzed deaminative redistribution of primary and secondary amines
Authors: Kostera S. , Wyrzykiewicz B. , Pawluć P. , Marciniec B.
Published: August 2017

A ruthenium–hydride complex, [Ru(H)(Cl)(CO)(PCy3)2], was found to be active in the highly selective redistribution of primary and secondary amines bearing an α-hydrogen atom.
Correction: Effect of low-purity Fenton reagents on toxicity of textile dyeing effluent to Daphnia magna
Authors: Na Joorim , Yoo Jisu , Nam Gwiwoong , Jung Jinho
Published: August 2017

Correction for ‘Effect of low-purity Fenton reagents on toxicity of textile dyeing effluent to Daphnia magna’ by Joorim Na et al., Environ. Sci.: Processes Impacts, 2017, DOI: 10.1039/c7em00078b.
Characterization of active compounds from Gracilaria lemaneiformis inhibiting the protein tyrosine phosphatase 1B activity
Authors: Guo Xinfeng , Gu Dongyu , Wang Miao , Huang Yu , Li Haoquan , Dong Yue , Tian Jing , Wang Yi , Yang Yi
Published: August 2017

Gracilaria lemaneiformis, an edible alga, with various bioactivities is a traditional dish and a favorite food.
An environmentally benign and selective electrochemical oxidation of sulfides and thiols in a continuous-flow microreactor
Authors: Laudadio Gabriele , Straathof Natan J. W. , Lanting Menno D. , Knoops Benny , Hessel Volker , Noël Timothy
Published: August 2017

A practical and environmentally benign electrochemical oxidation of thioethers and thiols in a commercially-available continuous-flow microreactor is presented.
In vitro delivery of calcium ions by nanogated mesoporous silica nanoparticles to induce cancer cellular apoptosis
Authors: Tarn Derrick , Yu Chia-Jung , Lu Jie , Hartz Anna , Tamanoi Fuyuhiko , Zink Jeffrey I.
Published: August 2017

Calcium ions released by mesoporous silica nanoparticles taken up by cancer cells cause apoptosis.
Reusable iron sulfide nanospheres towards promoted photocatalytic and electrocatalytic activities
Authors: Show Bibhutibhushan , Mukherjee Nillohit , Mondal Anup
Published: August 2017

Electrochemically deposited FeS nanospheres were found to degrade efficiently a series of toxic pigments and phenol in the presence of visible light. The material also showed excellent hydrogen peroxide sensing properties.
Oxygen defect engineering by the current effect assisted with temperature cycling in a perovskite-type La0.7Sr0.3CoO3 film
Authors: Li J. , Wang J. , Kuang H. , Zhang H. R. , Zhao Y. Y. , Qiao K. M. , Wang F. , Liu W. , Wang W. , Peng L. C. , Zhang Y. , Yu R. C. , Hu F. X. , Sun J. R. , Shen B. G.
Published: August 2017

A new approach to the engineering of oxygen vacancies in cobaltite films based on the combined current effect and temperature cycling under low temperature.
Carbonization conditions influence the emission characteristics and the stability against photobleaching of nitrogen doped carbon dots
Authors: Xiong Yuan , Schneider Julian , Reckmeier Claas J. , Huang He , Kasák Peter , Rogach Andrey L.
Published: August 2017

Our study provides insights into the origin of the luminescence properties of carbon dots, by addressing the role of carbonization conditions, nitrogen doping, and formation of molecular fluorophores.
A one step method for the functional and property modification of DOPA based nanocoatings
Authors: Lyu Qinghua , Zhang Jieyu , Neoh Koon Gee , Li Lin Chai Christina
Published: August 2017

DOPA-based nanocoatings with different properties and functions can be fabricated via the copolymerization of DOPA derivative, NADOPAMe, with external nucleophiles.
Supramolecular control of heme binding and electronic states in multi-heme peptide assemblies
Authors: Christopher Fry H. , Wood Anna R. , Solomon Lee A.
Published: August 2017

Three peptides that are compositionally identical but sequentially distinct have been designed to study the impact of morphology and hydrophobicity on heme coordination and function.
Iodine-catalyzed oxidative multiple C–H bond functionalization of isoquinolines with methylarenes: an efficient synthesis of isoquinoline-1,3,4(2H)-triones
Authors: Zhu Di , Luo Wen-Kun , Yang Luo , Ma Da-You
Published: August 2017

An iodine-catalyzed multiple C–H bond functionalization of isoquinolines with methylarenes via a successive benzylic sp3 C–H iodination/N-benzylation/amidation/double sp2 C–H oxidation sequence to yield isoquinoline-1,3,4(2H)-triones is developed for the first time.
Intramolecular cyclopropylmethylation via non-classical carbocations
Authors: Skvorcova M. , Jirgensons A.
Published: August 2017

Cyclopropyl–cyclopropyl rearrangement can be achieved selectively by intramolecular trapping of non-classical carbocations with an internal nucleophile.
Visible-light-responsive polymeric multilayers for trapping and release of cargoes via host–guest interactions
Authors: Bian Qing , Jin Minmin , Chen Shuo , Xu Liping , Wang Shutao , Wang Guojie
Published: August 2017

Visible-light-responsive layer-by-layer assembled polyelectrolyte multilayers are fabricated for reversible trapping and release of cargoes via azobenzene/cyclodextrin host–guest interactions.
The “bottom-up” construction of chiral porous organic polymers for heterogeneous asymmetric organocatalysis: MacMillan catalyst built-in nanoporous organic frameworks
Authors: Wang Chang-An , Li Yan-Wei , Han Yin-Feng , Zhang Jian-Ping , Wu Ren-Tao , He Guo-Fang
Published: August 2017

MacMillan catalyst-embedded chiral porous organic polymers were synthesizedviabottom-up strategy and used as efficient and recyclable heterogeneous organocatalysts for the asymmetric Diels–Alder reaction.
Single-chain nanoparticles containing sequence-defined segments: using primary structure control to promote secondary and tertiary structures in synthetic protein mimics
Authors: Cole J. P. , Lessard J. J. , Rodriguez K. J. , Hanlon A. M. , Reville E. K. , Mancinelli J. P. , Berda E. B.
Published: August 2017

We investigated intra-chain multicomponent reactions to synthesize single-chain nanoparticles (SCNP) containing sequence-defined segments at each cross-link, creating materials featuring multiple protein-inspired elements.
Post-polymerization modification via the Biginelli reaction to prepare water-soluble polymer adhesives
Authors: Wang Zilin , Yu Ying , Li Yongsan , Yang Lei , Zhao Yuan , Liu Guoqiang , Wei Yen , Wang Xing , Tao Lei
Published: August 2017

A copolymer precursor containing the β-ketoester moiety has been modified through the Biginelli reaction to get several water-soluble adhesives which are comparable to commercial glues.
Phase separation and electrical performance of bithienopyrroledione polymer semiconductors embedded in insulating polymers
Authors: Tang Linjing , He Pan , Qiao Xiaolan , Qian Qun , Li Hongxiang
Published: August 2017

Bithenopyrroledione based polymer semiconductors formed micro-sized fibers and were well dispersed in polymer semiconductor/PMMA blend films. The blend film transistors showed ambipolar behavior in a N2 atmosphere with a hole mobility of 0.1 cm2 V−1 s−1 and an electron mobility of 0.05 cm2 V−1 s−1.
Facile synthesis of 1-aminoindoles via Rh(iii)-catalysed intramolecular three-component annulation
Authors: Yang Zi , Lin Xing , Wang Lianhui , Cui Xiuling
Published: August 2017

A simple and efficient procedure to 1-aminoindoles starting from easily available aryl hydrazines, diazo compounds and ketones via a rhodium-catalyzed [3 + 2] annulative coupling reaction.
Direct writing of a conducting polymer pattern in aqueous solution by using an ultrashort laser pulse
Authors: Agarwal Neha , Ryu Hyobong , Mangang Melanie , Pfleging Wilhelm , Kim Jungtae
Published: August 2017

Conducting polymer (pyrrole-3-carboxylic acid; PCA) patterning in aqueous solution on a microfluidic channel using laser direct writing method.
A thermal-induced electric current from a gold electrode/porous silicon device
Authors: Huang Cheng-Yin , Chang Chin-Kai , Wen Kai-Shin , Hsiao Vincent K. S.
Published: August 2017

We demonstrate the electric current measured from a device composed of electrochemically etched silicon, porous silicon (PS) and gold (Au) electrodes of different device designs by applying a thermal potential between two Au electrodes.
MOF-derived Co/ZnO@silicalite-1 photocatalyst with high photocatalytic activity
Authors: Yang Xiaobing , Chen Juan , Lai Huixian , Hu Jiapeng , Fang Ming , Luo Xuetao
Published: August 2017

Metal doped ZnO supported on porous materials have unique and highly attractive properties and have drawn worldwide attention.
Structures, stabilities and spectral properties of metalloborospherenes MB0/−40 (M = Cu, Ag, and Au)
Authors: Li Shi-Xiong , Zhang Zheng-Ping , Long Zheng-Wen , Qin Shui-Jie
Published: August 2017

Metalloborospherenes MB0/−40 (M = Cu, Ag, and Au) are predicted. Relative energies of these metalloborospherenes suggest that Cu, Ag and Au atoms favor the exohedral configuration.
In situ-DRIFTS study: influence of surface acidity of rhenium-based catalysts in the metathesis of various olefins for propylene production
Authors: Vorakitkanvasin Siriporn , Phongsawat Weena , Suriye Kongkiat , Praserthdam Piyasan , Panpranot Joongjai
Published: August 2017

Various olefins including 1- and 2-butene, 2-pentene, and ethylene were used as the reactants for producing propylene by self- and cross-metathesis reactions at 60 °C on supported Re-based catalysts (4 wt% Re).
Stepwise study on Janus-like particles fabricated by polymeric mixtures within soft droplets: a Monte Carlo simulation
Authors: Sheng Yuping , Xia Li , Yang Guanzhou , Xia Yiqing , Huang Yong , Pan Chuanjiang , Zhu Yutian
Published: August 2017

Janus particles were fabricated using different polymer mixtures and the self-assembly behavior for different particles was compared.
Improvement in thermostability of an alkaline lipase I from Penicillium cyclopium by directed evolution
Authors: Liu Yihan , Liu Hao , Huang Lin , Gui Shuang , Zheng Dong , Jia Leibo , Fu Yu , Lu Fuping
Published: August 2017

A novel alkaline-stable lipase I fromPenicillium cyclopiumwith improved thermostability was prepared by molecular modification.
Colorimetric detection of streptomycin in milk based on peroxidase-mimicking catalytic activity of gold nanoparticles
Authors: Zhao Jing , Wu Yuangen , Tao Han , Chen Huayun , Yang Wenping , Qiu Shuyi
Published: August 2017

A novel and effective colorimetric aptasensor based on enhanced peroxidase-mimicking catalytic ability of AuNPs was proposed for streptomycin detection.
Design of a multifunctional vanadium pentoxide/polymer biocomposite for implant-coating applications
Authors: Anicic N. , Vukomanovic M. , Suvorov D.
Published: August 2017

In this study we designed a multifunctional implant coating by exploiting the properties of V2O5, i.e. the antibacterial activity via myeloperoxidase-like catalytic activity and the bioactivity of low concentrations of vanadate ions.
Self-healing polymeric materials for membrane separation: an example of a polybenzimidazole-based membrane for pervaporation dehydration on isopropanol aqueous solution
Authors: Huang Chien-Ho , Liu Ying-Ling
Published: August 2017

The demonstration of a self-healing material based separation membrane for pervaporation dehydration on liquid–liquid mixtures.
Hydrothermal synthesis of mpg-C3N4 and Bi2WO6 nest-like structure nanohybrids with enhanced visible light photocatalytic activities
Authors: Zhu Xingwang , Liu Jinyuan , Zhao Zhenzhen , Yan Jia , Xu Yuanguo , Song Yanhua , Ji Haiyan , Xu Hui , Li Huaming
Published: August 2017

Due to the anisotropic growth of Bi2WO6, the zero-dimensional (0D) nanoparticles can be transformed into two-dimensional (2D) nanosheets, and finally self-assembled into three-dimensional (3D) nest-like structures.
Controllable synthesis of unique Ni/mesoporous carbon composites with lightweight and high EM wave absorption performance
Authors: Chen Muyu , Zhang Haiyan , Zeng Guoxun , Zhang Danfeng , Yan Chengjie , Shen Yu , Yu Xiaofen , Wu Qibai , Chen Yuanwu
Published: August 2017

Ni/DMC composites with unique structure were synthesized through a facile two-step method, of which the Ni nanoparticle in mesopores act as scattering centers to intensify the multiple reflection of EM waves and improve the absorption efficiency.
One-pot synthesis of self-healable and recyclable ionogels based on polyamidoamine (PAMAM) dendrimers via Schiff base reaction
Authors: Zhao Xiaomeng , Guo Shufei , Li Hao , Liu Jiahang , Su Cuiping , Song Hongzan
Published: August 2017

Novel ionogels with covalent polymeric networks based on polyamidoamine (PAMAM) dendrimers have been synthesized by the in situ crosslinking of amines via Schiff base reaction in the ionic liquid 1-ethyl-3-methylimidazolium acetate ([EMIM][OAc]).
Ferrocene particles incorporated into Zr-based metal–organic frameworks for selective phenol hydroxylation to dihydroxybenzenes
Authors: Li Bin , Wu Wubin , Zhang Tianyong , Jiang Shuang , Chen Xingwei , Zhang Guanghui , Zhang Xia
Published: August 2017

Ferrocene@UiO-66 exhibited high catalytic activity for phenol hydroxylation with H2O2 at room temperature in water.
Design of an aptamer – based fluorescence displacement biosensor for selective and sensitive detection of kanamycin in aqueous samples
Authors: Ma Long , Sun Nana , Tu Chunhao , Zhang Qian , Diao Aipo
Published: August 2017

A label-free detection method for kanamycin A using an aptamer-based displacement biosensor has been developed.
Asymmetric syntheses of 8-oxabicyclo[3,2,1]octane and 11-oxatricyclo[5.3.1.0]undecane from glycals
Authors: Liao Hongze , Leng Wei-Lin , Le Mai Hoang Kim , Yao Hui , He Jingxi , Voo Amanda Ying Hui , Liu Xue-Wei
Published: August 2017

A gold-catalyzed tandem 1,3-acyloxy migration/Ferrier rearrangement to access 8-oxabicyclo[3.2.1]octanes with high efficiency and complete diastereoselectivity was developed successfully. Resultant compounds could undergo the interrupted Nazarov cyclization to afford diastereomerically pure 11-oxatricyclo[5.3.1.0]undecanes.
Enhanced cyclability using a polyindole modified cathode material for lithium sulphur batteries
Authors: Chulliyote Reshma , Hareendrakrishnakumar Haritha , Raja Murugan , Gladis Joseph Mary , Stephan Arul Manuel
Published: August 2017

Here we report a novel multiwall carbon nanotube/sulphur/polyindole (MWCNT/S/PIN) nanocomposite as a cathode material for lithium–sulphur (Li–S) batteries to alleviate capacity decay.
Band engineered p-type RGO–CdS–PANI ternary nanocomposites for thermoelectric applications
Authors: More Priyesh V. , Hiragond Chaitanya , Dey Abhijit , Khanna Pawan K.
Published: August 2017

The presence of CdS QDs enhances the electrical conductivity and power factor but considerably lowers the thermal conductivity of the nanocomposite. The present RGO/CdS QDs/PANI nanocomposite restricts phonons but permits electrical charges making it a thermally disconnected but electrically connected material for efficient thermoelectric applications.
One-pot synthesis of silica–titania binary nanoparticles with acid–base pairs via biomimetic mineralization to fabricate highly proton-conductive membranes
Authors: Yin Yongheng , Liu Yuchen , Wu Hong , Cao Li , He Xueyi , Zhang Bei , Wang Chongbin , Jiang Zhongyi
Published: August 2017

Binary nanoparticles with a tunable ratio of silica to titania are synthesized through one-pot biomimetic mineralization to fabricate highly proton-conductive membranes.
3D hierarchical nitrogen-doped carbon nanoflower derived from chitosan for efficient electrocatalytic oxygen reduction and high performance lithium–sulfur batteries
Authors: Guo D. , Wei H. , Chen X. , Liu M. , Ding F. , Yang Z. , Yang Y. , Wang S. , Yang K. , Huang S.
Published: August 2017

A highly uniform N-doped carbon nanoflower was demonstrated as a bifunctional material for efficient electrocatalytic oxygen reduction and high performance lithium–sulfur batteries.
Roe-shaped Ni3(PO4)2/RGO/Co3(PO4)2(NRC) nanocomposite grown in situ on Co foam for superior supercapacitors
Authors: Zhao Chongjun , Wang Shengqi , Zhu Zhaoqiang , Ju Peiwen , Zhao Chunhua , Qian Xiuzhen
Published: August 2017

A hierarchical roe-shaped NRC@CoF nanocomposite was synthesizedin situthrough a one-step hydrothermal process, and exhibited a specific capacitance of 1137.5 F g−1at 0.56 A g−1.
An inkjet-printed capacitive sensor for water level or quality monitoring: investigated theoretically and experimentally
Authors: Yang Qiang , Yu Andrew J. , Simonton James , Yang Gaoqiang , Dohrmann Yeshi , Kang Zhenye , Li Yifan , Mo Jingke , Zhang Feng-Yuan
Published: August 2017

Experimentally and theoretically demonstrated water quality or level monitoring by inkjet printed coplanar capacitive sensors with high sensitivity.
Facile and controllable one-pot synthesis of nickel-doped LiMn0.8Fe0.2PO4 nanosheets as high performance cathode materials for lithium-ion batteries
Authors: Wang Yan , Yang Hao , Wu Cheng-Yu , Duh Jenq-Gong
Published: August 2017

To improve the kinetic performance of LiMn0.8Fe0.2PO4, a facile and controllable non-stoichiometric one-pot stepwise feeding solvothermal approach is successfully developed for preparing nickel-doped LiMn0.8Fe0.2PO4 nanosheets.
Human skin interactive self-powered wearable piezoelectric bio-e-skin by electrospun poly-l-lactic acid nanofibers for non-invasive physiological signal monitoring
Authors: Sultana Ayesha , Ghosh Sujoy Kumar , Sencadas Vitor , Zheng Tian , Higgins Michael J. , Middya Tapas Ranjan , Mandal Dipankar
Published: August 2017

An electrospun PLLA fiber based flexible, piezoelectric bio-e-skin that can detect human physiological signals is presented.
Transfection-capable polycationic nanovectors which include PEGylated-cyclodextrin structural units: a new synthesis pathway
Authors: Dascalu A. I. , Ardeleanu R. , Neamtu A. , Maier S. S. , Uritu C. M. , Nicolescu A. , Silion M. , Peptanariu D. , Calin M. , Pinteala M.
Published: August 2017

Polycationic nanoentities with low variability are able to act as cooperating carriers for dsDNA complexation and transport.