bluuebunny/crossref_metadata_2025 huggingface dataset:
Nanoantenna-based ultrafast thermoelectric long-wave infrared detectors
Authors: Szakmany Gergo P. , Bernstein Gary H. , Kinzel Edward C. , Orlov Alexei O. , Porod Wolfgang
Published: August 2020

We investigate the generation of electrical signals by suspended thermoelectrically coupled nanoantennas (TECNAs) above a quasi-spherical reflector cavity in response to rapidly changing long-wave infrared radiation. These sensors use a resonant nanoantenna to couple the IR energy to a nanoscale thermocouple. They are positioned over a cavity, etched into the Si substrate, that provides thermal isolation and is designed as an optical element to focus the IR radiation to the antenna. We study the frequency-dependent response of such TECNAs to amplitude-modulated 10.6 μm IR signals. We experimentally demonstrate response times on the order of 3 μs, and a signal bandwidth of about 300 kHz. The observed electrical response is in excellent correlation with finite element method simulations based on the thermal properties of nanostructures. Both experiments and simulations show a key trade-off between sensitivity and response time for such structures and provide solutions for specific target applications.
Selective antibiofilm properties and biocompatibility of nano-ZnO and nano-ZnO/Ag coated surfaces
Authors: Rosenberg M. , Visnapuu M. , Vija H. , Kisand V. , Kasemets K. , Kahru A. , Ivask A.
Published: August 2020

Spread of pathogenic microbes and antibiotic-resistant bacteria in health-care settings and public spaces is a serious public health challenge. Materials that prevent solid surface colonization or impede touch-transfer of viable microbes could provide means to decrease pathogen transfer from high-touch surfaces in critical applications. ZnO and Ag nanoparticles have shown great potential in antimicrobial applications. Less is known about nano-enabled surfaces. Here we demonstrate that surfaces coated with nano-ZnO or nano-ZnO/Ag composites are not cytotoxic to human keratinocytes and possess species-selective medium-dependent antibiofilm activity against Escherichia coli, Staphylococcus aureus and Candida albicans. Colonization of nano-ZnO and nano-ZnO/Ag surfaces by E. coli and S. aureus was decreased in static oligotrophic conditions (no planktonic growth). Moderate to no effect was observed for bacterial biofilms in growth medium (supporting exponential growth). Inversely, nano-ZnO surfaces enhanced biofilm formation by C. albicans in oligotrophic conditions. However, enhanced C. albicans biofilm formation on nano-ZnO surfaces was effectively counteracted by the addition of Ag. Possible selective enhancement of biofilm formation by the yeast C. albicans on Zn-enabled surfaces should be taken into account in antimicrobial surface development. Our results also indicated the importance of the use of application-appropriate test conditions and exposure medium in antimicrobial surface testing.
Experimental investigation on water adsorption and desorption isotherms of the Longmaxi shale in the Sichuan Basin, China
Authors: Ma Xinhua , Shen Weijun , Li Xizhe , Hu Yong , Liu Xiaohua , Lu Xiaobing
Published: August 2020

The understanding of water adsorption and desorption behavior in the shale rocks is of great significance in the reserve estimation, wellbore stability and hydrocarbon extraction in the shale gas reservoirs. However, the water sorption behavior in the shales remains unclear. In this study, water vapor adsorption/desorption isotherms of the Longmaxi shale in the Sichuan Basin, China were conducted at various temperatures (30 °C, 60 °C) and a relative pressure up to 0.97 to understand the water sorption behavior. Then the effects of temperature and shale properties were analyzed, and the water adsorption, hysteresis, saturation and capillary pressure were discussed. The results indicate that water adsorption isotherms of the Longmaxi shale exhibit the type II characteristics. The water molecules initially adsorb on the shale particle/pore surfaces at low relative pressure while the capillary condensation dominates at high relative pressure. Temperature favors the water sorption in the shales at high relative pressure, and the GAB isotherm model is found to be suitable for describe the water adsorption/desorption behavior. The high organic carbon and full bedding are beneficial to water adsorption in the shales while the calcite inhibits the behavior. There exists the hysteresis between water adsorption and desorption at the whole relative pressure, which suggests that the depletion of condensed water from smaller capillary pores is more difficult than that from larger pores, and the chemical interaction contributes to the hysteresis loop for water sorption. The capillary pressure in the shales can be up to the order of several hundreds of MPa, and thus the desorption of water from the shales may not be as easy as the water adsorption due to the high capillary pressure, which results in water retention behavior in the shale gas reservoirs. These results can provide insights into a better understanding of water sorption behavior in the shale so as to optimize extraction conditions and predict gas productivity in the shale gas reservoirs.
Bioprocessing strategies for cost-effective simultaneous removal of chromium and malachite green by marine alga Enteromorpha intestinalis
Authors: Hamouda Ragaa A. , El-Naggar Noura El-Ahmady , Doleib Nada M. , Saddiq Amna A.
Published: August 2020

A large number of industries use heavy metal cations to fix dyes in fabrication processes. Malachite green (MG) is used in many factories and in aquaculture production to treat parasites, and it has genotoxic and carcinogenic effects. Chromium is used to fix the dyes and it is a global toxic heavy metal. Face centered central composite design (FCCCD) has been used to determine the most significant factors for enhanced simultaneous removal of MG and chromium ions from aqueous solutions using marine green algaEnteromorpha intestinalisbiomass collected from Jeddah beach. The dry biomass ofE. intestinalissamples were also examined using SEM and FTIR before and after MG and chromium biosoptions. The predicted results indicated that 4.3 g/LE. intestinalisbiomass was simultaneously removed 99.63% of MG and 93.38% of chromium from aqueous solution using a MG concentration of 7.97 mg/L, the chromium concentration of 192.45 mg/L, pH 9.92, the contact time was 38.5 min with an agitation of 200 rpm. FTIR and SEM proved the change in characteristics of algal biomass after treatments. The dry biomass ofE. intestinalishas the capacity to remove MG and chromium from aquatic effluents in a feasible and efficient manner.
Identification of flux checkpoints in a metabolic pathway through white-box, grey-box and black-box modeling approaches
Authors: Lo-Thong Ophélie , Charton Philippe , Cadet Xavier F. , Grondin-Perez Brigitte , Saavedra Emma , Damour Cédric , Cadet Frédéric
Published: August 2020

Metabolic pathway modeling plays an increasing role in drug design by allowing better understanding of the underlying regulation and controlling networks in the metabolism of living organisms. However, despite rapid progress in this area, pathway modeling can become a real nightmare for researchers, notably when few experimental data are available or when the pathway is highly complex. Here, three different approaches were developed to model the second part of glycolysis of E. histolytica as an application example, and have succeeded in predicting the final pathway flux: one including detailed kinetic information (white-box), another with an added adjustment term (grey-box) and the last one using an artificial neural network method (black-box). Afterwards, each model was used for metabolic control analysis and flux control coefficient determination. The first two enzymes of this pathway are identified as the key enzymes playing a role in flux control. This study revealed the significance of the three methods for building suitable models adjusted to the available data in the field of metabolic pathway modeling, and could be useful to biologists and modelers.
Karyotype changes in long-term cultured tick cell lines
Authors: Kotsarenko Kateryna , Vechtova Pavlina , Lieskovska Jaroslava , Füssy Zoltán , Cabral-de-Mello Diogo C. , Rego Ryan O. M. , Alberdi Pilar , Collins Marisol , Bell-Sakyi Lesley , Sterba Jan , Grubhoffer Libor
Published: August 2020

Tick cell lines are an easy-to-handle system for the study of viral and bacterial infections and other aspects of tick cellular processes. Tick cell cultures are often continuously cultivated, as freezing can affect their viability. However, the long-term cultivation of tick cells can influence their genome stability. In the present study, we investigated karyotype and genome size of tick cell lines. Though 16S rDNA sequencing showed the similarity between Ixodes spp. cell lines at different passages, their karyotypes differed from 2n = 28 chromosomes for parental Ixodes spp. ticks, and both increase and decrease in chromosome numbers were observed. For example, the highly passaged Ixodes scapularis cell line ISE18 and Ixodes ricinus cell lines IRE/CTVM19 and IRE/CTVM20 had modal chromosome numbers 48, 23 and 48, respectively. Also, the Ornithodoros moubata cell line OME/CTVM22 had the modal chromosome number 33 instead of 2n = 20 chromosomes for Ornithodoros spp. ticks. All studied tick cell lines had a larger genome size in comparison to the genomes of the parental ticks. Thus, highly passaged tick cell lines can be used for research purposes, but possible differences in encoded genetic information and downstream cellular processes, between different cell populations, should be taken into account.
Author Correction: Modeling suggests fossil fuel emissions have been driving increased land carbon uptake since the turn of the 20th Century
Authors: Schwalm Christopher R. , Huntzinger Deborah N. , Michalak Anna M. , Schaefer Kevin , Fisher Joshua B. , Fang Yuanyuan , Wei Yaxing
Published: August 2020

An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Cytochrome P450 inhibition potential and initial genotoxic evaluation of 14-O-[(4,6-diaminopyrimidine-2-yl)thioacetyl] mutilin
Authors: Fu Yunxing , Yi Yunpeng , Fan Yuan , Shang Ruofeng
Published: August 2020

14-O-[(4,6-Diaminopyrimidine-2-yl)thioacetyl] mutilin (DPTM) is a promising drug candidate with excellent antibacterial activity against Gram-positive bacteria. The present study was designed to characterize its Cytochrome P450 (CYP) enzymes inhibition activities and the genotoxicity with the standard Ames test. We determined the inhibitory effects of DPTM on CYP1A2, CYP2D1/6, CYP2E1, CYP2C11/9 and CYP3A/4 in rat liver microsomes (RLMs) and in human liver microsomes (HLMs). The mRNA expressions of the above CYP isoforms and their transcriptional regulators were also evaluated using the Hep G2 cell model. The results showed DPTM exhibited a moderate inhibitory potential against CYP3A/4 (IC50 values of 10 ± 2 and 8 ± 2 μM, respectively) and weak against the other CYP enzymes based on their IC50 values. Compared to the control, CYP isoforms and their transcriptional regulators mRNA expressions significantly increased when the Hep G2 cells were treated with DPTM for a certain period of time. In the Ames test, Salmonella strains TA97, TA98, TA100, TA102 and TA1535 were treated with or without the metabolic activation (S9). Analysis showed the average number of revertant colonies per plate was less in double in the groups treated with DPTM than that in the negative control plate and showed no dose-related increase.
DNA barcodes for delineating Clerodendrum species of North East India
Authors: Gogoi Barbi , Wann S. B. , Saikia S. P.
Published: August 2020

The diversified genus of Clerodendrum with its complex evolutionary history leads to taxonomic mystification. Unlike traditional taxonomic methods, DNA barcoding could be a promising tool for the identification and conservation of Clerodendrum species. This study was attempted to develop an efficient barcode locus in Clerodendrum species of North East India. We evaluated four barcode candidates (ITS2, matK, rbcL, ycf1) and its combinations in different Clerodendrum species. The reliability of barcodes to distinguish the species were calculated using genetic pairwise distances, intra- and inter-specific diversity, barcode gap, and phylogenetic tree-based methods. The results exemplify that matK posse’s maximum number of variables and parsimony-informative sites (103/100), intra- (0.021 ± 0.001) and inter- (0.086 ± 0.005) specific divergences and species resolution rate (89.1%) followed by ITS2, ycf1, and rbcL. Among the combinatorial locus, ITS2 + matK showed the best species discrimination with distinctive barcode gaps. Therefore, we tentatively suggest that the combination of ITS2 + matK as core barcode for Clerodendrum and converted into quick response (QR) code. Hence, this finding indicates that DNA barcoding could provide consistent resources for species discrimination and resolve taxonomic controversies of the genus as well as set a preliminary assessment toward its biodiversity.
The grasper-integrated disposable flexible cystoscope is comparable to the reusable, flexible cystoscope for the detection of bladder cancer
Authors: Seyam Raouf M. , Zeitouni Omar M. , Alsibai Tarek M. , AlAyoub Abdulrahman J. , Al-Qassab Osamah M. , AlDeiry Mhd A. , Zino Ahmad O. , Hulwi Hasan S. , Mokhtar Alaa A. , Shahbaz Mahmoud , Junejo Noor N. , Alotaibi Mohamed F. , Alzahrani Hassan M. , Alothman Khaled I. , Alkhateeb Sultan S. , Al-Hussain Turki O. , Altaweel Waleed M.
Published: August 2020

Flexible cystoscopy under local anaesthesia is standard for the surveillance of bladder cancer. Frequently, several reusable cystoscopes fail to reprocess. With the new grasper incorporated single-use cystoscope for retrieval of ureteric stents, we explored the feasibility of using it off-label for diagnosis and the detection of bladder cancer. Consecutive diagnostic flexible cystoscopies between Mar 2016 and Nov 2018 were reviewed comparing the reusable versus the disposable cystoscopes. A total of 390 patients underwent 1211 cystoscopies. Median age was 61.5 years (SD 14.2, 18.8–91.4), males 331 (84.9%) and females 59 (15.1%). Indication for cystoscopy was prior malignancy in 1183 procedures (97.7%), haematuria 19 (1.6%) or bladder mass 7 (0.6%). There were 608 reusable and 603 disposable cystoscopies. There was no significant difference between groups at baseline in age, sex, BMI, smoking status, or prior tumor risk category. There was no significant difference in positive findings (123/608, 20.2% vs 111/603, 18.4%, p = 0.425) or cancer detection rates (95/608, 15.6% vs 88/603, 14.4%, p 0.574) among the two groups, respectively. We conclude that the disposable grasper integrated cystoscope is comparable to reusable cystoscope in the detection of bladder cancer.
Impaired chondrocyte U3 snoRNA expression in osteoarthritis impacts the chondrocyte protein translation apparatus
Authors: Ripmeester Ellen G. J. , Caron Marjolein M. J. , van den Akker G. G. H. , Surtel Don A. M. , Cremers Andy , Balaskas Panagiotis , Dyer Philip , Housmans Bas A. C. , Chabronova Alzbeta , Smagul Aibek , Fang Yongxiang , van Rhijn Lodewijk W. , Peffers Mandy J. , Welting Tim J. M.
Published: August 2020

Although pathways controlling ribosome activity have been described to regulate chondrocyte homeostasis in osteoarthritis, ribosome biogenesis in osteoarthritis is unexplored. We hypothesized that U3 snoRNA, a non-coding RNA involved in ribosomal RNA maturation, is critical for chondrocyte protein translation capacity in osteoarthritis. U3 snoRNA was one of a number of snoRNAs with decreased expression in osteoarthritic cartilage and osteoarthritic chondrocytes. OA synovial fluid impacted U3 snoRNA expression by affecting U3 snoRNA gene promoter activity, while BMP7 was able to increase its expression. Altering U3 snoRNA expression resulted in changes in chondrocyte phenotype. Interference with U3 snoRNA expression led to reduction of rRNA levels and translational capacity, whilst induced expression of U3 snoRNA was accompanied by increased 18S and 28S rRNA levels and elevated protein translation. Whole proteome analysis revealed a global impact of reduced U3 snoRNA expression on protein translational processes and inflammatory pathways. For the first time we demonstrate implications of a snoRNA in osteoarthritis chondrocyte biology and investigated its role in the chondrocyte differentiation status, rRNA levels and protein translational capacity.
Factors related to the psychological impact of malocclusion in adolescents
Authors: Iranzo-Cortés José Enrique , Montiel-Company José Maria , Bellot-Arcis Carlos , Almerich-Torres Teresa , Acevedo-Atala Claudia , Ortolá-Siscar José Carmelo , Almerich-Silla José Manuel
Published: August 2020

To study the association between orthodontic treatment need and the psychosocial impact of dental aesthetics in a sample of adolescents, as well as other associated factors. A transversal study was conducted on 1,158 adolescents (12–16 years old) examined at the schools selected for the 2018 epidemiological study on oral health in the Comunidad Valenciana (Spain). The need for orthodontic treatment was determined by DAI and IOTN. The psychosocial impact was established by the Psychosocial Impact of Dental Aesthetics Questionnaire (PIDAQ). Other variables considered were sex, social class, DMFT index and Body-Mass Index, and having previously worn or presently wearing an orthodontic device. A lineal regression statistical technique was applied to study the significant associations with the scoring obtained in PIDAQ. The PIDAQ scores revealed a significant and positive lineal relationship with regard to need for orthodontic treatment: DAI (ẞ = 0.20) and IOTN-DHC (ẞ = 4.87), in women (ẞ = 2.66) and a negative one for having previously worn an orthodontic device (ẞ = − 5.74). The rest of the variables had no statistical significance (p > 0.05). The psychosocial impact of dental aesthetics in adolescents is associated with the presence of malocclusion and the female sex, while the condition of having previously worn an orthodontic device reduces the psychosocial impact.
A network percolation-based contagion model of flood propagation and recession in urban road networks
Authors: Fan Chao , Jiang Xiangqi , Mostafavi Ali
Published: August 2020

In this study, we propose a contagion model as a simple and powerful mathematical approach for predicting the spatial spread and temporal evolution of the onset and recession of floodwaters in urban road networks. A network of urban roads resilient to flooding events is essential for the provision of public services and for emergency response. The spread of floodwaters in urban networks is a complex spatial–temporal phenomenon. This study presents a mathematical contagion model to describe the spatial–temporal spread and recession process of floodwaters in urban road networks. The evolution of floods within networks can be captured based on three macroscopic characteristics—flood propagation rate ($$\beta$$
β
), flood incubation rate ($$\alpha$$
α
), and recovery rate ($$\mu$$
μ
)—in a system of ordinary differential equations analogous to the Susceptible-Exposed-Infected-Recovered (SEIR) model. We integrated the flood contagion model with the network percolation process in which the probability of flooding of a road segment depends on the degree to which the nearby road segments are flooded. The application of the proposed model is verified using high-resolution historical data of road flooding in Harris County during Hurricane Harvey in 2017. The results show that the model can monitor and predict the fraction of flooded roads over time. Additionally, the proposed model can achieve 90% precision and recall for the spatial spread of the flooded roads at the majority of tested time intervals. The findings suggest that the proposed mathematical contagion model offers great potential to support emergency managers, public officials, citizens, first responders, and other decision-makers for flood forecast in road networks.
Identification of C3 as a therapeutic target for diabetic nephropathy by bioinformatics analysis
Authors: Tang ShuMei , Wang XiuFen , Deng TianCi , Ge HuiPeng , Xiao XiangCheng
Published: August 2020

The pathogenesis of diabetic nephropathy is not completely understood, and the effects of existing treatments are not satisfactory. Various public platforms already contain extensive data for deeper bioinformatics analysis. From the GSE30529 dataset based on diabetic nephropathy tubular samples, we identified 345 genes through differential expression analysis and weighted gene coexpression correlation network analysis. GO annotations mainly included neutrophil activation, regulation of immune effector process, positive regulation of cytokine production and neutrophil-mediated immunity. KEGG pathways mostly included phagosome, complement and coagulation cascades, cell adhesion molecules and the AGE-RAGE signalling pathway in diabetic complications. Additional datasets were analysed to understand the mechanisms of differential gene expression from an epigenetic perspective. Differentially expressed miRNAs were obtained to construct a miRNA-mRNA network from the miRNA profiles in the GSE57674 dataset. The miR-1237-3p/SH2B3, miR-1238-5p/ZNF652 and miR-766-3p/TGFBI axes may be involved in diabetic nephropathy. The methylation levels of the 345 genes were also tested based on the gene methylation profiles of the GSE121820 dataset. The top 20 hub genes in the PPI network were discerned using the CytoHubba tool. Correlation analysis with GFR showed that SYK, CXCL1, LYN, VWF, ANXA1, C3, HLA-E, RHOA, SERPING1, EGF and KNG1 may be involved in diabetic nephropathy. Eight small molecule compounds were identified as potential therapeutic drugs using Connectivity Map.
Occurrence of cold sensitivity in carpal tunnel syndrome and its effects on surgical outcome following open carpal tunnel release
Authors: Zimmerman Malin , Nyman Erika , Dahlin Lars B.
Published: August 2020

Cold sensitivity is common following nerve injuries in the upper extremity, but is less well studied in carpal tunnel syndrome (CTS). We investigated cold sensitivity in CTS and its effects on surgical outcome. A search of the Swedish National Registry for Hand Surgery (HAKIR) for open carpal tunnel releases (OCTR) from 2010–2016 identified 10,746 cases. Symptom severity questionnaires (HQ-8; HAKIR questionnaire 8, eight Likert-scale items scored 0–100, one item on cold sensitivity) and QuickDASH scores before and after surgery were collected. Patient mean age was 56 ± SD 16 years, and 7,150/10,746 (67%) were women. Patients with severe cold sensitivity (defined as cold intolerance symptom severity score > 70; n = 951), scored significantly higher on QuickDASH at all time points compared to those with mild cold sensitivity (cold intolerance symptom severity scores ≤ 30, n = 1,532); preoperatively 64 [50–75] vs. 40 [25–55], at three months 32 [14–52] vs. 18 [9–32] and at 12 months 25 [7–50] vs. 9 [2–23]; all p < 0.0001. Severe cold sensitivity predicted higher postoperative QuickDASH scores at three [12.9 points (95% CI 10.2–15.6; p < 0.0001)] and at 12 months [14.8 points (11.3–18.4; p < 0.0001)] compared to mild cold sensitivity, and adjustment for a concomitant condition in the hand/arm, including ulnar nerve compression, did not influence the results. Cold sensitivity improves after OCTR. A higher preoperative degree of cold sensitivity is associated with more preoperative and postoperative disability and symptoms than a lower degree of cold sensitivity, but with the same improvement in QuickDASH score.
Structural investigation of oxidized arabinoxylan oligosaccharides by negative ionization HILIC-qToF-MS
Authors: Demuth Teresa , Boulos Samy , Nyström Laura
Published: August 2020

Holistic analytical approach to identify the modification of diagnostic arabinoxylan oligosaccharides (A)XOS through selective TEMPO-mediated and non-selective Fenton oxidation and its subsequent application on non-selectively oxidized AX.
Gas chromatography-tandem mass spectrometry-based detection of half nitrogen mustards in plasma as a new biomarker of nitrogen mustard exposure
Authors: Chandra Buddhadeb , Roy Kanchan Sinha , Shaik Mahabul , Waghmare Chandrakant , Golime RamaRao , Palit Meehir
Published: August 2020

The development, optimization and validation of an analytical method for the detection and identification of reactive metabolite of nitrogen mustards (a Chemical Warfare Agent),i.e.half nitrogen mustards in blood samples by GC-MS/MS (PCI).
Peptide-based supramolecular hydrogels for bioimaging applications
Authors: Liu Xiaoyang , Sun Xianbao , Liang Gaolin
Published: August 2020

Peptide-based supramolecular hydrogels have unique merits in bioimaging applications.
Visible light photocatalysis – from racemic to asymmetric activation strategies
Authors: Rigotti Thomas , Alemán José
Published: August 2020

The most significant contributions towards enantioselective photocatalysis have been described with a special emphasis on the various activation strategies.
Simple squaramide receptors for highly efficient anion binding in aqueous media and transmembrane transport
Authors: Picci Giacomo , Kubicki Maciej , Garau Alessandra , Lippolis Vito , Mocci Rita , Porcheddu Andrea , Quesada Roberto , Ricci Pier Carlo , Scorciapino M. Andrea , Caltagirone Claudia
Published: August 2020

A family of acyclic squaramide receptors (L1–L5) have been synthesised with the aim to evaluate how the presence of additional H-bond donor groups on the squaramide scaffold could affect their affinity towards anions and transport ability.
Regulating surface sulfonation on cellulose nanocrystals and self-assembly behaviors
Authors: Wang Yuxia , Lwal Aban Lwal John , Wang Qin , Zhou Ji , Dufresne Alain , Lin Ning
Published: August 2020

Gradiented surface sulfonation was performed on CNCs with the regulation of the surface chemistry and crystalline structure toward self-assembly behaviors.
A DS2-specific flavonoid-based probe with a unique dual-emissive response to human serum albumin
Authors: Huang Yingying , Lv Taoyuze , Qin Tianyi , Xu Zhongyong , Wang Lei , Liu Bin
Published: August 2020

The hydroxyl substituent in flavonoids can cause the binding site to change from DS1 to DS2 and restore the ESIPT process of flavonoids, thereby leading to a unique dual-emissive response towards human serum albumin.
Cu(ii)-Catalysed β-silylation of dehydroalanine residues in peptides and proteins
Authors: de Vries Reinder H. , Roelfes Gerard
Published: August 2020

Cu(ii) catalysis enables efficient and selective β-silylation of dehydroalanine residues in peptides and proteins.
Controllable solute-diffusion gel-growth of BCHT: an effective approach towards large functional material single crystal synthesis
Authors: Hany Ibrahim , Kanies Bryant , Yang Ge
Published: August 2020

An underutilized, but highly advantageous, method of growing functional-single-crystals, the gel-growth technique, is highlighted. Large nonlinear optical crystals, BCHT, were grown and their dehydration phase-transformation to β-BTC were studied.
Insight into the roles of small molecules in CL-20 based host–guest crystals: a comparative DFT-D study
Authors: Wang Kun , Zhu Weihua
Published: August 2020

The host–guest inclusion strategy has emerged as a promising method for developing advanced energetic materials and has been successfully applied to a CL-20 crystal.
A multifunctional Cd(ii)-based metal–organic framework with amide groups exhibiting luminescence sensing towards multiple substances
Authors: Guo Runzhong , Dong Hao , Li Peiyuan , Sun Yi , Wang Haiying , Liu Huiyan
Published: August 2020

By incorporating flexible amide group onto skeleton of a tetracarboxylate linker endows it with potential to serve as tetrahedral node and facilitate the construction of a flu net, which significantly demonstrates multi-responsive behavior.
The critical role of titanium cation in the enhanced performance of P2-Na0.5Ni0.25Mn0.60Ti0.15O2 cathode material for sodium-ion batteries
Authors: Zhang Ding , Meng Xiao-Meng , Zheng Ya-Min , Wang Xiao-Min , Xu Shou-Dong , Chen Liang , Liu Shi-Bin
Published: August 2020

P2-Na0.5Ni0.25Mn0.60Ti0.15O2 cathode material with excellent cycling performance and rate performance for sodium ion batteries.
Homogeneous nucleation of carbon dioxide in supersonic nozzles I: experiments and classical theories
Authors: Dingilian Kayane K. , Halonen Roope , Tikkanen Valtteri , Reischl Bernhard , Vehkamäki Hanna , Wyslouzil Barbara E.
Published: August 2020

Small angle X-ray scattering and pressure measurements yield quantitative homogeneous nucleation rates for CO2 near 80 K.
Multidimensional B4N materials as novel anode materials for lithium ion batteries
Authors: Guo Jiyuan , Tian Binwei , Shu Huabing , Wang Ying , Dai Jun
Published: August 2020

Monolayer B4N, bilayer B4N and bulk B4N are novel anode materials for lithium ion batteries.
Two-dimensional IR spectroscopy reveals a hidden Fermi resonance band in the azido stretch spectrum of β-azidoalanine
Authors: Park Jun Young , Kwon Hyeok-Jun , Mondal Saptarsi , Han Hogyu , Kwak Kyungwon , Cho Minhaeng
Published: August 2020

The 2D-IR spectrum of Ala-N3 shows cross-peak, but cannot be identified clearly. The 1D slice spectra obtained from 2D-IR spectrum reveals the presence of hidden Fermi resonance peak.
Pressure-dependent kinetics of peroxy radicals formed in isobutanol combustion
Authors: Goldman Mark Jacob , Yee Nathan W. , Kroll Jesse H. , Green William H.
Published: August 2020

Isobutanol peroxy radical's pressure dependent pathways.
Hydrogen solution in tungsten (W) under different temperatures and strains: a first principles calculation study
Authors: Hu Wei , Wang Hewen , Luo Min , Jiang Diyou , Ouyang Chuying
Published: August 2020

Hydrogen solution in tungsten under different temperatures and strains.
Kinetics of contracting geometry-type reactions in the solid state: implications from the thermally induced transformation processes of α-oxalic acid dihydrate
Authors: Kodani Satoki , Koga Nobuyoshi
Published: August 2020

Thermally induced transformation processes of α-oxalic acid dihydrate reveal the current status of kinetic understanding.
Quantitative insights into non-uniform plasmonic hotspots due to symmetry breaking induced by oblique incidence
Authors: Zhou Yong , Li Hongliang , Zhang Guanhua , Wei Dong , Zhang Lan , Meng Yujie , Zheng Xianfeng , Ma Zhibo , Zeng Jie , Yang Xueming
Published: August 2020

Polarization-dependent non-uniform plasmonic hotspots of a triangular Ag nanoplate are visualized through oblique-incidence photoemission electron microscopy and interpreted by numerical simulations.
Comment on “Tunable thermal quenching properties of Na3Sc2(PO4)3:Eu2+ phosphors tailored by phase transformation details” by Z. Liu et al., Dalton Trans., 2020, 49, 3615
Authors: Yan Shirun
Published: August 2020

A negative TQ of the Na3Sc2(PO4)3:Eu2+ phosphor could be a pitfall caused by the diminishing optical-path lengths of a spectrofluorometer at elevated temperatures.
Visible-light-promoted oxidative halogenation of (hetero)arenes
Authors: Lu Lingling , Li Yiming , Jiang Xuefeng
Published: August 2020

Organic halides are critical building blocks that participate in various cross-coupling reactions.
XANES at the Cl K-edge as a relevant technique to reveal the iron archaeological artefact dechlorination treatments
Authors: Reguer Solenn , Kergourlay Florian , Foy Eddy , Neff Delphine , Vantelon Delphine , Cotte Marine , Mirambet Francois , Dillmann Philippe
Published: August 2020

Degradation state evaluation, corrosion diagnosis methods' reliability, and also the development and improvement of conservation strategies are dramatically important to preserve iron archaeological objects.
Ultra-trace cadmium determination in eucalyptus and rosemary tea samples using a novel method: deep eutectic solvent based magnetic nanofluid liquid phase microextraction-slotted quartz tube-flame atomic absorption spectrometry
Authors: Kasa Nursu Aylin , Zaman Buse Tuğba , Bakırdere Sezgin
Published: August 2020

A deep eutectic solvent-based magnetic nanofluid liquid phase microextraction method was developed for the preconcentration of cadmium prior to its determination using the slotted quartz tube flame atomic absorption spectrophotometry system.
Dynamic intermolecular interactions through hydrogen bonding of water promote heat conduction in hydrogels
Authors: Zhou Jiawei , Lin Shaoting , Zeng Hongxia , Liu Ji , Li Buxuan , Xu Yanfei , Zhao Xuanhe , Chen Gang
Published: August 2020

Dynamic intermolecular forces through hydrogen bonding between water and polymer chains are shown to enhance thermal transport in soft materials.
Composition and structure of magnetic high-temperature-phase, stable Fe–Au core–shell nanoparticles with zero-valent bcc Fe core
Authors: Kamp Marius , Tymoczko Anna , Popescu Radian , Schürmann Ulrich , Nadarajah Ruksan , Gökce Bilal , Rehbock Christoph , Gerthsen Dagmar , Barcikowski Stephan , Kienle Lorenz
Published: August 2020

Advanced quantitative TEM/EDXS methods were used to characterize different ultrastructures of magnetic Fe–Au core–shell nanoparticles formed by laser ablation in liquids.
Microwave-assisted green synthesis, characterization and adsorption studies on metal oxide nanoparticles synthesized usingFicus Benghalensisplant leaf extracts
Authors: Lagashetty Arunkumar , Ganiger Sangappa K. , R. K. Preeti , Reddy Shashidhar , Pari Malathesh
Published: August 2020

Synthesis of metal oxide nanoparticles by reduction with plant leaf extract is an eco-friendly method.
A new chloro-substituted dicyanoisophorone-based near-infrared fluorophore with a larger Stokes shift and its application for detecting cysteine in cells and in vivo
Authors: Wang Yu , Zhang Wenda , Ma Ting , Li Duolu , Zhou Yubing , Zhang Xiaojian , Gao Jianbo
Published: August 2020

Many dicyanoisophorone-based fluorophores with an optical hydroxyl group have been explored to meet different imaging needs along with the rapid and wide development of molecular fluorescence bioimaging in recent years.
Ammonia-controlled synthesis of monodispersed N-doped carbon nanoparticles
Authors: Hanif Farzana , Liu Yingcen , Liu Jihong , Song Caicheng , Zhang Liyan , Lin Hua , Lu Rongwen , Zhang Shufen
Published: August 2020

The presence of ammonia slowing down the acid-catalysed Schiff base formation as well as control the monodispersity through the separation of nucleation and growth stages.
Cytotoxic and antitumor peptides as novel chemotherapeutics
Authors: Luan Xin , Wu Ye , Shen Yi-Wen , Zhang Hong , Zhou Yu-Dong , Chen Hong-Zhuan , Nagle Dale G. , Zhang Wei-Dong
Published: August 2020

This highlight reviews the chemical and mechanistic basis of diverse natural cytotoxic peptides, emphasizing the importance of natural peptides as promising novel chemotherapeutic drugs.
In situ synthesis of polyaniline/carbon nanotube composites in a carbonized wood scaffold for high performance supercapacitors
Authors: Wu Wei , Wang Xin , Deng Yuanyuan , Zhou Cui , Wang Ziheng , Zhang Minglong , Li Xianjun , Wu Yiqiang , Luo Yongfeng , Chen Daoyong
Published: August 2020

An asymmetric supercapacitor with excellent stability and electrochemical performance was constructed based on a carbonized wood scaffold compounding polyaniline with carbon nanotubes.
A near-infrared light-mediated antimicrobial based on Ag/Ti3C2Txfor effective synergetic antibacterial applications
Authors: Zhu Xiaoquan , Zhu Yingnan , Jia Ke , Abraha Bahreselam Sielu , Li Yang , Peng Wenchao , Zhang Fengbao , Fan Xiaobin , Zhang Lei
Published: August 2020

The antimicrobial effect of Ag/Ti3C2Txcould be significantly strengthened upon near-infrared light exposure.
Synthesis and optoelectronic properties of benzodithiophene-based conjugated polymers with hydrogen bonding nucleobase side chain functionality
Authors: Sabury Sina , Adams Tyler J. , Kocherga Margaret , Kilbey S. Michael , Walter Michael G.
Published: August 2020

Nucleobase functionalities in conjugated, alternating copolymers participate in interbase hydrogen bonding, which promotes molecular assembly and organization in thin films and enhances optical and electronic properties.
Hierarchical metal–organic frameworks constructed from intergrowth for the adsorption of light hydrocarbons
Authors: Yin Xinyang , Zhang Xueyi
Published: August 2020

Hierarchical metal organic frameworks (MOFs) are a type of MOF material with both micropores and mesopores.
New insights into the structural analysis of maghemite and (MFe2O4, M = Co, Zn) ferrite nanoparticles synthesized by a microwave-assisted polyol process
Authors: Gallo-Cordova Álvaro , Espinosa Ana , Serrano Aida , Gutiérrez Lucía , Menéndez Nieves , del Puerto Morales María , Mazarío Eva
Published: August 2020

A comprehensive structural analysis was presented on crystalline maghemite and ferrite (MFe2O4, M = Co, Zn) nanoparticles prepared by the well-known polyol process enhanced by fast, reproducible, easy and efficient microwave heating.
NIS-promoted intermolecular bis-sulfenylation of allenamidesviaa two-step radical process: synthesis of 1,3-dithioethers
Authors: Yuan Xiao , Tan Xiaoju , Ding Na , Liu Yongchun , Li Xiaoxiao , Zhao Zhigang
Published: August 2020

The first report of NIS-promoted two-step radical addition of thiols to allenamides to provide an efficient route for accessing 1,3-dithioethers.
Ultrafine Pd nanoparticles loaded benzothiazole-linked covalent organic framework for efficient photocatalytic C–C cross-coupling reactions
Authors: Yang Yongliang , Niu Hongyun , Zhao Weijia , Xu Lin , Zhang Hui , Cai Yaqi
Published: August 2020

Benzothiazole-linked covalent organic framework with characteristic properties loaded Pd nanoparticles for photocatalytic C–C cross-coupling reactions.
A near-infrared fluorescent probe with an improved Stokes shift achieved by tuning the donor–acceptor–donor character of the rhodamine skeleton and its applications
Authors: Gong Jin , Liu Chang , Jiao Xiaojie , He Song , Zhao Liancheng , Zeng Xianshun
Published: August 2020

A novel mitochondrion-targeting Hg2+probe,RQS, with NIR emission (680 nm) and a large Stokes shift (96 nm) was developed by tuning the D–A–D character of the rhodamine skeleton.
Lateral size reduction of graphene oxide preserving its electronic properties and chemical functionality
Authors: Méndez-Romero Ulises A. , Pérez-García Sergio Alfonso , Fan Qunping , Wang Ergang , Licea-Jiménez Liliana
Published: August 2020

A simple and effective approach to control the lateral size of graphene oxide maintaining its characteristics while enhancing its applications.
Homogeneous liquid–liquid microextraction based on liquid nitrogen-induced phase separation followed by GFAAS for sensitive extraction and determination of lead in lead-adulterated opium and refined opium
Authors: Ahmadi-Jouibari Toraj , Aghaei Abbas , Sharafi Kiomars , Fattahi Nazir
Published: August 2020

Herein, we developed a novel homogeneous liquid–liquid microextraction based on liquid nitrogen-induced phase separation (HLLME-LNPS) for the extraction and determination of lead (Pb) in Pb-adulterated opium and refined opium by GFAAS analysis.
Direct comparison of safer or sustainable alternative dipolar aprotic solvents for use in carbon–carbon bond formation
Authors: Sangon Suwiwat , Supanchaiyamat Nontipa , Sherwood James , McElroy Con R. , Hunt Andrew J.
Published: August 2020

Direct comparison of safer dipolar aprotic solvents for use in carbon–carbon bond formation is of vital importance for industrial applications. Cyrene exhibited high initial reaction rates, yields and solvent recovery in the Baylis–Hillman reaction.
Simultaneous structural and elemental nano-imaging of human brain tissue
Authors: Genoud Sian , Jones Michael W. M. , Trist Benjamin Guy , Deng Junjing , Chen Si , Hare Dominic James , Double Kay L.
Published: August 2020

Structural and chemical characterisation of microfeatures in unadulterated Parkinson's disease brain tissue using synchrotron nanoscale XFM and ptychography.
Separating bulk and surface processes in NiOx electrocatalysts for water oxidation
Authors: Corby Sacha , Tecedor Miguel-García , Tengeler Sven , Steinert Céline , Moss Benjamin , Mesa Camilo A. , Heiba Hany F. , Wilson Anna A. , Kaiser Bernhard , Jaegermann Wolfram , Francàs Laia , Gimenez Sixto , Durrant James R.
Published: August 2020

Nickel oxyhydroxide electrocatalysts are highly active for water oxidation and swell when electrochemically activated. In this thickness dependence study, we find only the upper surface (<5 nm) is active during water oxidation catalysis.
Vibration controlled foam yielding
Authors: Rinkinen Oona , Viitanen Leevi , Mac Intyre Jonatan R. , Koivisto Juha , Puisto Antti , Alava Mikko
Published: August 2020

Mechanical vibrations manipulate the foam behaviour. The higher the frequency, the faster the foam flows.
Strain localization and failure of disordered particle rafts with tunable ductility during tensile deformation
Authors: Xiao Hongyi , Ivancic Robert J. S. , Durian Douglas J.
Published: August 2020

Tensile experiments of disordered granular particle rafts at an air–oil interface show that their ductility can be tuned by the particle size.
Collective diffusion coefficient of a charged colloidal dispersion: interferometric measurements in a drying drop
Authors: Sobac Benjamin , Dehaeck Sam , Bouchaudy Anne , Salmon Jean-Baptiste
Published: August 2020

Mass transport in a drying drop of a charged colloidal dispersion: new insights using Mach-Zehnder interferometry.
An ultrathin, strong, flexible composite solid electrolyte for high-voltage lithium metal batteries
Authors: Liu Ke , Wu Maochun , Jiang Haoran , Lin Yanke , Zhao Tianshou
Published: August 2020

The urgent need for safe, energy-dense electrochemical storage devices calls for high-voltage solid-state lithium metal batteries.
Energy enhancement of quasi-solid-state supercapacitors based on a non-aqueous gel polymer electrolyteviaa synergistic effect of dual redox additives diphenylamine and potassium iodide
Authors: Yadav Neetu , Hashmi S. A.
Published: August 2020

Enhancing redox activity at electrode–electrolyte interfaces by dispersing redox additive(s) in electrolytes is a recent approach to increase the specific energy of carbon supercapacitors.
Perovskite white light-emitting diodes with a perovskite emissive layer blended with rhodamine 6G
Authors: Chang Che-Yu , Hong Wei-Li , Lo Pei-Hsuan , Wen Tzu-Hsiang , Horng Sheng-Fu , Hsu Ching-Ling , Chao Yu-Chiang
Published: August 2020

Perovskite white light-emitting diodes with only a single emissive layer of halide perovskites and rhodamine 6G were realized with the CIE chromaticity coordinates of (0.33, 0.40).
Physical and optoelectronic features of lead-free A2AgRhBr6 (A = Cs, Rb, K, Na, Li) with halide double perovskite composition
Authors: Varadwaj Pradeep R. , Marques Helder M.
Published: August 2020

Composition engineering of the A, B′, and B′′-sites in AB′B′′X6 has led to the theoretical development of rhodium based halide double perovskites in 3D, A2AgRhBr6 (A = Cs, Rb, K, Na, Li), with impressive optoelectronic characteristics.
N-Rich electron acceptors: triplet harvesting in multichromophoric pyridoquinoxaline and pyridopyrazine-based organic emitters
Authors: Sk Bahadur , Sharma Samarth , James Anto , Kundu Subhankar , Patra Abhijit
Published: August 2020

The role of rigid and flexible N-rich electron acceptor cores in the harvesting of triplet states through TADF and RTP was elucidated in a series of all-organic tridonor–acceptor compounds.
Sulforhodamine B-LDH composite as a rare-earth-free red-emitting phosphor for LED lighting
Authors: Legentil Paul , Leroux Fabrice , Therias Sandrine , Boyer Damien , Chadeyron Geneviève
Published: August 2020

Domestic lighting using white light-emitting diodes (WLEDs) requires a choice of materials to be eco-friendly as well as economically viable.
La plasticité phénotypique chez les insectes
Authors: Gibert Jean-Michel
Published: August 2020

Les insectes représentent 85 % des animaux. Ils se sont adaptés à de nombreux environnements et jouent un rôle majeur dans les écosystèmes. De nombreuses espèces d’insectes montrent de la plasticité phénotypique. Nous présentons ici les mécanismes impliqués dans la plasticité phénotypique chez différents insectes (les pucerons, le criquet migrateur, le papillon carte géographique, l’abeille ainsi que la plasticité nutritionnelle de la taille chez la drosophile et la plasticité des ocelles sur les ailes du papillonBicyclus anynana). Nous décrivons également plus en détail nos travaux sur la plasticité thermique de la pigmentation chez la drosophile. Le froid induit une pigmentation abdominale plus foncée chez les femelles drosophiles. Nous avons montré que l’expression des gènestan,yellowetDdc, codant des enzymes de la voie de synthèse des mélanines, est modulée par la température et que c’est une conséquence, au moins en partie, de l’expression sensible à la température des gènes du locusbabqui les répriment.
Mouthpart morphology and food habits of a Pampean population ofCloeondipterum(Linnaeus, 1761) (Ephemeroptera: Baetidae)
Authors: Banegas Bárbara Pamela , Casset María Andrea , Silvera Agustina , Rocha Luciana
Published: August 2020

Knowledge of the feeding habits of aquatic insects and assignation to different functional feeding groups contributes to a better comprehension of aquatic ecosystems. The feeding habits of larval stages (4–6 mm) ofCloeondipterum(Linnaeus, 1761) were studied through mouthpart morphology, gut content and were tested in food particle size preference experiments. The description of the mouthparts consisted in the dissection of them and their observation in an optical microscope. Gut content analysis was carried out by ventral dissection of the thorax to isolate the digestive tract. The content of each larva was homogenized, mounted on slides and observed under an optical microscope at 400× magnification with a graduated eyepiece. Food preference experiments consisted on offering fine particulate organic matter (FPOM) and coarse (CPOM) leaves ofLaurus nobilissimultaneously. Mouthparts are characterized by robust mandibles with well-developed and asymmetric molar surfaces and maxillae and labium with developed palps, with short setae. Gut content ofC.dipterumwas dominated by fine detritus represented by 76.9% (SD = 25.7) of the covered area. Also, in the food preference experiments was detected that FPOM consumption was greater than CPOM. Consequently, we consider that the larval stages ofC.dipterumare functionally classified as collectors-gatherers preferring fine particle size, and secondary scrapers for CPOM manipulation.