bluuebunny/crossref_metadata_2025 huggingface dataset:
An almost nontoxic tetrodotoxin analog, 5,6,11-trideoxytetrodotoxin, as an odorant for the grass puffer
Authors: Noguchi Yoshihisa , Suzuki Takehisa , Matsutani Keigo , Sakakibara Ryo , Nakahigashi Ryota , Adachi Masaatsu , Nishikawa Toshio , Abe Hideki
Published: September 2022

Toxic puffers contain the potent neurotoxin, tetrodotoxin (TTX). Although TTX is considered to serve as a defense substance, previous behavioral studies have demonstrated that TTX acts as an attractive pheromone for some toxic puffers. To elucidate the physiological mechanism of putative pheromonal action of TTX, we examined whether grass puffers Takifugu alboplumbeus can detect TTX. Electroolfactogram (EOG) results suggest that the olfactory epithelium (OE) of grass puffers responded to a type of TTX analog (5,6,11-trideoxyTTX), although it did not respond to TTX. We also examined the attractive action of 5,6,11-trideoxyTTX on grass puffers by recording their swimming behavior under dark conditions. Grass puffers preferred to stay on the side of the aquarium where 5,6,11-trideoxyTTX was administered, and their swimming speed decreased. Additionally, odorant-induced labeling of olfactory sensory neurons by immunohistochemistry against neural activity marker (phosphorylated extracellular signal regulated kinase; pERK) revealed that labeled olfactory sensory neurons were localized in the region surrounding “islets” where there was considered as nonsensory epithelium. 5,6,11-trideoxyTTX has been known to accumulate in grass puffers, but its toxicity is much lower (almost nontoxic) than TTX. Our results suggest that toxic puffers may positively use this TTX analog, which has been present in their body with TTX but whose function was unknown, as an odorant for chemical communication or effective TTX accumulation.
Determination of FRET orientation factor between artificial fluorophore and photosynthetic light-harvesting 2 complex (LH2)
Authors: Fujimoto Kazuhiro J. , Miyashita Tomoya , Dewa Takehisa , Yanai Takeshi
Published: September 2022

The orientation factor of fluorescence resonance energy transfer (FRET) between photosynthetic light-harvesting 2 complex (LH2) and artificial fluorophore (Alexa Fluor 647: A647) was theoretically investigated. The orientation factor of 2/3, i.e., the isotropic mean, is widely used to predict the donor–acceptor distance from FRET measurements. However, this approximation seems inappropriate because the movement of A647 is possibly restricted by the bifunctional linker binding to LH2. In this study, we performed molecular dynamics (MD) simulations and electronic coupling calculations on the LH2-A647 conjugate to analyze its orientation factor. The MD results showed that A647 keeps a position approximately 26 Å away from the bacteriochlorophyll (BChl) assembly in LH2. The effective orientation factor was extracted from the electronic coupling calculated using the transition charge from electrostatic potential (TrESP) method. With MD snapshots, an averaged orientation factor was predicted to be 1.55, significantly different from the isotropic mean value. The analysis also suggested that the value of the refractive index employed in the previous studies is not suitable for this system. Furthermore, optimal orientations of A647 with larger orientation factors to improve FRET efficiency were searched using Euler angles. The present approach is useful for extending the applicability of FRET analysis.
Metabolomic changes in crown of alfalfa (Medicago sativa L.) during de-acclimation
Authors: Li Zhensong , He Feng , Tong Zongyong , Li Xianglin , Yang Qingchuan , Hannaway David B.
Published: September 2022

Alfalfa is a high-quality forage legume species that is widely cultivated at high latitudes worldwide. However, a decrease in cold tolerance in early spring seriously affects regrowth and persistence of alfalfa. There has been limited research on the metabolomic changes that occur during de-acclimation. In this study, a liquid chromatography–mass spectrometry system was used to compare the metabolites in two alfalfa cultivars during a simulated overwintering treatment. In four pairwise comparisons, 367 differential metabolites were identified, of which 31 were annotated according to the Kyoto Encyclopedia of Genes and Genomes (KEGG) database. Many of these metabolites were peptides, carbohydrates, and lipids. At the subclass level, 17 major pathways were revealed to be significantly enriched (P < 0.05). The main differential metabolites included amino acids, peptides and analogs, carbohydrates, and glycerol phosphocholines. A metabolomic analysis showed that the up-regulation of unsaturated fatty acids and amino acids as well as the enhancement of the related metabolic pathways might be an effective strategy for increasing alfalfa cold tolerance. Furthermore, glycerophospholipid metabolism affects alfalfa cold tolerance in early spring. Study results provide new insights about the changes in alfalfa metabolites that occur during de-acclimation, with potential implications for the selection and breeding of cold-tolerant cultivars.
Molecular characterisation of a novel pathogenic avipoxvirus from an Australian little crow (Corvus bennetti) directly from the clinical sample
Authors: Sarker Subir , Sutherland Michelle
Published: September 2022

Avipoxviruses are thought to be restricted to avian hosts and considered significant pathogens that may impact the conservation of many birds. However, reports of avipoxvirus-like viruses from reptiles suggest that cross-species transmission, within birds and other species, may be possible. The vast majority of avipoxviruses in wild birds remain uncharacterised and their genetic variability is unclear. Here, cutaneous pox lesions were used to recover a novel full-length crowpox virus genome from an Australian little crow (Corvus bennetti), followed by the detection of immature and intracellular mature virions using electron microscopy. The CRPV genome was 328,768 bp in length and contained 403 predicted open-reading frames. While 356 of the ORFs of CRPV genome had the greatest similarity with other avipoxviruses gene products, a further 47 ORFs were novel. Subsequent phylogenetic analyses showed that the CRPV was most closely related to other avipoxviruses isolated from passerine and marine bird species and demonstrated the highest sequence similarity with an albatrosspox virus (84.4%). Considering the sequence similarity observed between CRPV and other avipoxviruses and phylogenetic position, this study concluded that the CRPV to be a distinct available candidate of avipoxviruses.
Development of a red fluorescent protein-based cGMP indicator applicable for live-cell imaging
Authors: Takizawa Mai , Osuga Yuri , Ishida Rika , Mita Marie , Harada Kazuki , Ueda Hiroshi , Kitaguchi Tetsuya , Tsuboi Takashi
Published: September 2022

Cyclic guanosine 3′, 5′-monophosphate (cGMP) is a second messenger that regulates a variety of physiological processes. Here, we develop a red fluorescent protein-based cGMP indicator, “Red cGull”. The fluorescence intensity of Red cGull increase more than sixfold in response to cGMP. The features of this indicator include an EC50 of 0.33 μM for cGMP, an excitation and emission peak at 567 nm and 591 nm, respectively. Live-cell imaging analysis reveal the utility of Red cGull for dual-colour imaging and its ability to be used in conjunction with optogenetics tools. Using enteroendocrine cell lines, Red cGull detects an increase in cGMP following the application of l-arginine. An increase in intracellular cGMP is found to be inhibited by Ca2+, and l-arginine-mediated hormone secretion is not potentiated. We propose that Red cGull will facilitate future research in cell signalling in relation to cGMP and its interplay with other signalling molecules.
Oestrogen-dependent hypothalamic oxytocin expression with changes in feeding and body weight in female rats
Authors: Nishimura Kazuaki , Yoshino Kiyoshi , Ikeda Naofumi , Baba Kazuhiko , Sanada Kenya , Akiyama Yasuki , Nishimura Haruki , Tanaka Kentaro , Sonoda Satomi , Ueno Hiromichi , Yoshimura Mitsuhiro , Maruyama Takashi , Hachisuga Toru , Ueta Yoichi
Published: September 2022

Oxytocin (OXT) is produced in the hypothalamic nuclei and secreted into systemic circulation from the posterior pituitary gland. In the central nervous system, OXT regulates behaviours including maternal and feeding behaviours. Our aim is to evaluate whether oestrogen regulates hypothalamic OXT dynamics. Herein, we provide the first evidence that OXT dynamics in the hypothalamus vary with sex and that oestrogen may modulate dynamic changes in OXT levels, using OXT-mRFP1 transgenic rats. The fluorescence intensity of OXT-mRFP1 and expression of the OXT and mRFP1 genes in the hypothalamic nuclei is highest during the oestrus stage in female rats and decreased significantly in ovariectomised rats. Oestrogen replacement caused significant increases in fluorescence intensity and gene expression in a dose-related manner. This is also demonstrated in the rats’ feeding behaviour and hypothalamic Fos neurons using cholecystokinin-8 and immunohistochemistry. Hypothalamic OXT expression is oestrogen-dependent and can be enhanced centrally by the administration of oestrogen.
Tertiary phosphines: preparation
Authors: Musina E. I. , Balueva A. S. , Karasik A. A.
Published: September 2022

The annual survey of the literature relating to the synthesis and reactions of tertiary phosphines, containing only P–C bonds, and published during 2020, is presented. The data concerning various synthetic approaches to new phosphines are summarized and reviewed.
Tervalent phosphorus acid derivatives
Authors: Pereira Mariette M. , Carrilho Rui M. B. , Calvete Mário J. F.
Published: September 2022

This chapter covers the most relevant literature published during the year 2020, related to tervalent phosphorus acid derivatives. Some of the most relevant concepts are reported, regarding synthetic methodologies to phosphorus compounds, such as phosphorus esters (phosphinite, phosphonite and phosphites), phosphorus amides (aminophosphines, phosphoramidites and diamidophosphites) and mixed phosphorus compounds bearing two different tervalent phosphorus moieties. A critical selection of their applications is briefly assessed, with an emphasis on the catalytic applications of ligands and metal complexes.
Phosphonium salts and P-ylides
Authors: Fiorani G. , Selva M. , Perosa A.
Published: September 2022

The present review collects and describes the literature on the preparation, characterisation and applications of phosphonium salts and ylides, published between January and December 2020. The large number of reviewed references highlights the importance of P-based derivatives in synthetic and non-synthetic applications. For the Reader's convenience, topics are organized to offer an introductory survey on the methods of preparation and characterisation of both types of compounds, followed by an analysis of applicative and curiosity driven research. Recent advances on the synthesis and applications of phosphonium-based ionic liquids (PILs) are summarised in a dedicated section.
Quinquevalent phosphorus acids
Authors: Bałczewski Piotr , Owsianik Krzysztof , Turek Marika
Published: September 2022

This chapter shows, as in previous years, the most important achievements of the 2020 year in the area of organo-phosphorus compounds containing: three P–O bonds (section: phosphoric acids and their derivatives), two P–O and one P–C bonds (section: phosphonic acids and their derivatives) as well as one P–O and two P–C bonds (section: phosphinic acids and their derivatives), in addition to the phosphoryl group P═O. Each of the main sections covers “synthesis and reactions” including pure synthesis without applications, “synthesis and biological applications” and “synthesis and miscellaneous applications” including synthesis directed towards non-biological applications. At the end of each subsection, the corresponding achievements are shown for hetero-analogues in which phosphorus–oxygen bonds have been replaced by phosphorus–heteroatom P–X and/or P═Y bonds (X, Y = N, S or Se). The subsection on quinquevalent phosphorus acids and their derivatives as catalysts has been placed, as usual, at the end of the entire chapter, after a review of all three main groups of compounds. In this year, the area devoted to phosphoric and phosphonic acids and their derivatives dominated traditionally over a smaller section of phosphinic acids and their derivatives, and all sections remained in a ratio 1 : 2 : 0.5, respectively.
Making Quality Cosmetics
Authors: Gilchrist Alastair J
Published: September 2022

Cosmetics manufacture is a dynamic and vibrant industry with companies varying from the very small scale, working in their own home, to much larger enterprises. With such variable companies there is the risk of equally variable quality in manufacturing. The International Organization for Standards (ISO) provides guidelines on good manufacturing processes for the cosmetics industry. However, not everyone working in cosmetics has a scientific or engineering backgrounds and understanding and meeting the ISO requirements can be daunting.

Whether you are a small business just starting out or an established company looking to expand, Making Quality Cosmetics will guide you through the requirements of the ISO standard. Calling on more than 35 years of experience in the cosmetics sector the author covers every aspect of the manufacturing set up and process, as well as discussing other regulations that may need to be considered, especially in larger facilities. With technical advice ranging from choosing equipment and raw materials, to assessing and auditing contractors this book will help you make sure your products are of the highest quality.
A multifunctional theranostics nanosystem featuring self-assembly of alcohol-abuse drug and photosensitizers for synergistic cancer therapy
Authors: Wu Peng-Yu , Shen Zhi-Chun , Jiang Jia-Li , Zhang Bing-Chen , Zhang Wen-Zhong , Zou Jun-Jie , Lin Juan-Fang , Li Chao , Shao Jing-Wei
Published: September 2022

Conventional treatments for cancer, such as chemotherapy, surgical resection, and radiotherapy, have shown limited therapeutic efficacy, with severe side effects, lack of targeting and drug resistance for monotherapies, which limit their clinical application.
Guest-activated quaternary ammonium salt hosts emit room temperature phosphorescence
Authors: Xu Xinyue , Chen Zehang , Lei Yunxiang , Sun Xinyu , Liu Miaochang , Wu Huayue , Huang Xiaobo
Published: September 2022

A host–guest system is constructed using quaternary ammonium salts as the hosts. It is the guest-activated hosts that emit room temperature phosphorescence, rather than the host-assisted guests in traditional doped systems.
A solution-processed Ag@ZnO core–shell nanowire network for stretchable transparent electromagnetic interference shielding application
Authors: Yan Siyi , Wang Henan , Li Peng
Published: September 2022

We develop a method to prepare Ag@ZnO core–shell heterojunction nanowire networks with high EMI shielding effectiveness due to enhancement in microwave absorption via microwave-assisted interface charge transport processes.
Effect of temperature gradient on quantum transport
Authors: Bose Amartya , Walters Peter L.
Published: September 2022

Non-constant temperature profile across extended systems affects dynamics and opens route to quantum control.
Dehydration of fatty alcohols on zirconia supported tungstate catalysts
Authors: Milaković Lara , Liu Yue , Baráth Eszter , Lercher Johannes A.
Published: September 2022

Zirconia supported tungstates catalyze octadecanol dehydration, an important step in the carbon preserving conversion of triglycerides to fuels.
Prediction on chemoselectivity for selected organocatalytic reactions by the DFT version of the Hückel-defined free valence index
Authors: Guo Limin , Wang Juanjuan , Luo Jing , Shi Qianqian , Wei Donghui , Chen Xuebo
Published: September 2022

The DFT version of the Hückel-defined free valence (HFV) index has been suggested and successfully used for predicting the origin of chemoselectivity in the selected organocatalytic reactions.
Conversion of methanol to hydrocarbons over H-MCM-22 zeolite: deactivation behaviours related to acid density and distribution
Authors: Liang Tingyu , Chen Jialing , Wang Sen , Wang Pengfei , Qin Zhangfeng , Jin Fang , Dong Mei , Wang Jianguo , Fan Weibin
Published: September 2022

The deactivation of H-MCM-22 zeolites with different Si/Al ratios can be roughly divided into three stages: first the rapid deactivation of the supercages, the second reaction with slow coking and the deactivation stage with rapid coking mainly on the external pockets.
Temperature-dependent Cu and Ag ion mobility and associated changes of transport properties in pavonite-type Cu1.4Ag0.4Bi5.4Se9
Authors: Fraunhofer Christina , Paul Theresa , Oeckler Oliver
Published: September 2022

Easily accessible Cu1.4Ag0.4Bi5.4Se9 features partially occupied Cu atom sites. Increasing Cu mobility leads to significantly decreasing lattice thermal conductivity upon heating and results in a thermoelectric figure of merit zT of up to 0.23.
Carbonyl hypoiodites from pivalic and trimesic acid and their silver(i) intermediates
Authors: Ward Jas S. , Martõnova Jevgenija , Wilson Laura M. E. , Kramer Eric , Aav Riina , Rissanen Kari
Published: September 2022

For the first time, tris(O–I–N) compounds were synthesised and characterised in both the solution (NMR) and solid states (SCXRD).
Single and double deprotonation/dearomatization of the N,S-donor pyridinophane ligand in ruthenium complexes
Authors: Dinh Hoan Minh , Gridneva Tatiana , Karimata Ayumu , Garcia-Roca Alèria , Pruchyathamkorn Jiratheep , Patil Pradnya H. , Petrov Andrey , Sarbajna Abir , Lapointe Sébastien , Khaskin Eugene , Fayzullin Robert R. , Khusnutdinova Julia R.
Published: September 2022

Single and double deprotonation of the N,S-donor macrocyclic pyridinophane ligand in structurally characterized Ru complexes results in the dearomatization of one or two pyridine rings.
Experimental and theoretical investigations on three DyIII4 single molecule magnets: structural and magneto-structural correlations
Authors: Mandal Shuvankar , Pramanik Abhishek , Dey Sourav , Carrella Luca M. , Rajaraman Gopalan , Rentschler Eva , Mohanta Sasankasekhar
Published: September 2022

The length of the chain of chelating carboxylate influences the deviation from the ideal geometry which, in turn, influences Ueff and τ0 values. Ab initio and DFT calculations provide an in-depth picture of exchange interactions and SMM properties.
Reactions of a Lewis acidic methylene phosphonium cationic adduct with olefins
Authors: Miao Linkun , Yeganeh-Salman Amir , Yeung Jason , Stephan Douglas W.
Published: September 2022

The species [Ph2(O3SCF3)PC(H)PPh2Me][O3SCF3] is Lewis acidic and reacts with Et3PO, dimethylaminopyridine (DMAP) and olefins to give dications with pendant vinyl or allyl groups.
Exploring controls on perfluorocarboxylic acid (PFCA) gas–particle partitioning using a model with observational constraints
Authors: Tao Ye , VandenBoer Trevor C. , Ye RenXi , Young Cora J.
Published: September 2022

The atmospheric fate of perfluorocarboxylic acids (PFCAs) has attracted much attention in recent decades due to the role of the atmosphere in global transport of these persistent chemicals.
Improving the gastrointestinal activity of probiotics through encapsulation within biphasic gel water-in-oil emulsions
Authors: Gao Hongxia , Huang Xin , Xie Youfa , Fang Suqiong , Chen Wenrong , Zhang Kui , Chen Xing , Zou Liqiang , Liu Wei
Published: September 2022

Biphasic gel W/O emulsion is beneficial for probiotics to resist the harsh environment of gastrointestinal tract and improve their digestive activity. It provides ideas for the design of probiotic delivery system.
Highly selective, energy-free, and environmentally friendly one-pot production of linear α-olefin from biomass-derived organic acid in a dual-bed catalyst system
Authors: Hidajat Marcel Jonathan , Kwon Oseok , Park Hoyoung , Han Jeehoon , Yun Gwang-Nam , Hwang Dong Won
Published: September 2022

An efficient and environmentally-friendly process to produce linear α-olefin from biomass-derived organic acid in a dual-bed catalyst system with high selectivity and stability.
Cell marathon: long-distance cell migration and metastasis-associated gene analysis using a folding paper system
Authors: Huang Chia-Hao , Lei Kin Fong
Published: September 2022

A folding paper system was developed to mimic a tumor–vascular interface for the study of long-distance cell migration.
Label-free OIRD microarray chips with a nanostructured sensing interface: enhanced sensitivity and mechanism
Authors: Li Xiaoyi , Fang Changxiang , Feng Zhihao , Li Junying , Li Yan , Hu Weihua
Published: September 2022

A label-free OIRD microarray chip was specifically designed by using a nanostructured fluorine-doped tin oxide (FTO) slide as a substrate, showing improved sensitivity. The unique optical enhancement mechanism was revealed.
Hybrid organic–inorganic perovskites as microwave radiation switches
Authors: Kucheriv Olesia I. , Oliynyk Viktor V. , Zagorodnii Volodymyr V. , Launets Vilen L. , Fritsky Igor O. , Gural'skiy Il'ya A.
Published: September 2022

A new way to tune microwave radiation with phase transition hybrid organic–inorganic perovskites was developed.
Synthesis of full-length homodimer αD-VxXXB that targets human α7 nicotinic acetylcholine receptors
Authors: Ho Thao N. T. , Abraham Nikita , Lewis Richard J.
Published: September 2022

αD-VxXXB is a homodimer of paired 50-residue peptide with ten conserved cysteines. Here we reported the first synthetic approach to full-length VxXXB via α-ketohydroxylamine ligation that enables further characterisation of this novel class of allosteric nAChR inhibitors.
In silico active learning for small molecule properties
Authors: Schneider Ludwig , Schwarting Marcus , Mysona Joshua , Liang Heyi , Han Ming , Rauscher Phillip M. , Ting Jeffrey M. , Venkatram Shruti , Ross Richard B. , Schmidt K. J. , Blaiszik Ben , Foster Ian , de Pablo Juan J.
Published: September 2022

Machine learning (ML) has emerged as a promising technology to accelerate materials discovery.
Silencing of proinflammatory NF-κB and inhibition of herpes simplex virus (HSV) replication by ultrasmall gold nanoparticles (2 nm) conjugated with small-interfering RNA
Authors: Wolff Natalie , Kollenda Sebastian , Klein Kai , Loza Kateryna , Heggen Marc , Brochhagen Leonie , Witzke Oliver , Krawczyk Adalbert , Hilger Ingrid , Epple Matthias
Published: September 2022

Different kinds of alkyne-terminated siRNA duplexes were conjugated to azide-terminated ultrasmall gold nanoparticles (2 nm) via copper-catalyzed azide–alkyne cycloaddition, depending on the gene to be silenced.
Capillary-force-driven self-assembly of carbon nanotubes: from ab initio calculations to modeling of self-assembly
Authors: Carapezzi Stefania , Boschetto Gabriele , Todri-Sanial Aida
Published: September 2022

In this paper, density functional theory and theory of contacts and adhesion of fibrillar interfaces (Gecko’s effect) are combined to investigate elasto-capillary-driven self-assembly of carbon nanotubes arrays.
Pd/Ni-metal–organic framework-derived porous carbon nanosheets for efficient CO oxidation over a wide pH range
Authors: Ipadeola Adewale K. , Eid Kamel , Abdullah Aboubakr M. , Al-Hajri Rashid S. , Ozoemena Kenneth I.
Published: September 2022

Ni-MOF-derived hierarchical porous carbon nanosheets (Ni-MOF/PC) decorated with Pd nanocrystals (Pd/Ni-MOF/PC) have high electrocatalytic CO oxidation activity in KOH, HClO4, and NaHCO3electrolytes than Pd/C and Pd/Ni-MOF/C.
High-spin, tetrahedral cobalt(ii) and nickel(ii) complexes supported by monoprotic aminophosphine ligands, and attempted extension to copper(ii) complexes: synthesis, characterization, and unexpected reactivity
Authors: Kelly Jordan C. , Bloomfield Aaron J.
Published: September 2022

We report the synthesis and characterization of two bidentate ligands containing an aliphatic monoprotic aminophosphine moiety, as well as novel complexes with Co(ii), Ni(ii), and Cu(ii).
Identification of a pyridine derivative of diselenides as a potent inhibitor of the main protease of SARS-CoV-2 through in silico screening and biochemical evaluation
Authors: Singh B. G. , Gandhi V. V. , Phadnis P. P. , Kunwar A.
Published: September 2022

Among the 22 organoselenium compounds studied, 2-Py2Se2 & Nict2Se2 showed the highest affinity for Mpro. The biochemical studies confirmed their superiority as compared to standard compound like Ebselen in terms of the IC50 required for Mpro inhibition.
Thermochromic properties of acridine heterocyclic derivatives with a donor–acceptor configuration
Authors: Li Shuzhe , Sun Tong , Niu Yixiao , Tian Yuhe , Yan Limin , Shi Wei , Yang Xuyong , Wei Bin
Published: September 2022

The thermochromic properties of two donor–acceptor type fluorescent molecules DpAn-InAc and DpAn-BzAc in powder- and film-states were studied.
Relying on the non-radical degradation of oxytetracycline by peroxymonosulfate activated with a magnetic Cu/Fe composite: performance and mechanism
Authors: Sun Jiabao , Li Qiang , Zhang Dajie , Xia Dongsheng
Published: September 2022

CuFe-1 nanoparticles were successfully synthesized, and they could effectively activate peroxymonosulfate to assist the degradation of oxytetracycline.
A water-stable Zn4O-based MOF decorated with carbazolyl chromophores for multi-responsive fluorescence sensing of Fe3+, Cr2O72− and nitro-compounds
Authors: Ding Shan , Cheng Cong , Xu Jia-Hui , Tang Zhe , Yang Guang-Sheng , Peng Shuai-Feng , Yu Lin-Qun , Jiang Chun-Jie , Su Zhong-Min
Published: September 2022

A MOF with strong deep blue light emission and high quantum efficiency has high selectivity and sensitivity for detecting 2,6-dichloro-4-nitroaniline.
Integration of polypyridyl-based ionic liquids into MIL-101 for promoting CO2 conversion into cyclic carbonates under cocatalyst-free and solventless conditions
Authors: Li Fangfang , Chen Yan , Gao Aijia , Tong Wenjing , Ji Changchun , Cheng Yong , Zhou Ying-Hua
Published: September 2022

The polypyridyl-based ionic liquid-functionalized MIL-101(Cr) greatly enhanced the epoxide–CO2 cycloaddition reaction under cocatalyst-free and solventless conditions.
Inducing oxide ion vacancies in Sr2CoSbO6 as a strategy to decouple power factor and thermal conductivity
Authors: Ramesh Manickam , Biswas Krishnendu
Published: September 2022

Ti doping in Sr2CoSbO6 resulted in 16 times increase in power factor and reduction of thermal conductivity by half the original value attributed to the induced oxide ion vacancies.
Vertically oriented ReS2(1−x)Se2x nanosheet-formed porous arrays on SiO2/Si substrates for ultraviolet-visible photoelectric detection
Authors: He Zhiyong , Xiong Yuexu , Feng Wenlin
Published: September 2022

The flow diagram of ReS2(1−x)Se2x deposited on a SiO2/Si substrate using CVD and a photodetector based on ReS2(1−x)Se2x films.
Hierarchical S-modified Cu porous nanoflakes for efficient CO2electroreduction to formate
Authors: Liu Li-Xia , Li Xiang , Cai Yanming , Du Huitong , Liu Fuqiang , Zhang Jian-Rong , Fu Jiaju , Zhu Wenlei
Published: September 2022

Hierarchical S-modified Cu porous nanoflakes with abundant active sites, fast charge transfer, and high active edge sites were designed as electrocatalysts for CO2conversion to formate with ultra-high current (404.1 mA cm−2) density and FE (89.8%).
Abnormal linear dichroism transition in two-dimensional PdPS
Authors: Li Gang , Chen Zheng , Zhang Hanlin , Yu Mengxi , Zhang Hui , Chen Jiawnag , Wang Zihan , Yin Shiqi , Lin Weichang , Gong Penglai , Zeng Longhui , Zhu Xiangde , Wei Wensen , Tian Mingliang , Li Liang
Published: September 2022

Abnormal optical anisotropy in 2D PdPS was revealed through polarization-sensitive absorption. The LD polarity shows high sensitivity to light wavelength, which can distinguish five wavelength bands for wavelength-selective photodetection.
In situpassivation of Pb0traps by fluoride acid-based ionic liquids enables enhanced emission and stability of CsPbBr3nanocrystals for efficient white light-emitting diodes
Authors: Xu Yanqiao , Hu Xiaobo , Chen Haijie , Tang Huidong , Hu Qing , Chen Ting , Jiang Weihui , Wang Lianjun , Jiang Wan
Published: September 2022

An efficientin situsurface passivation strategy is proposed to improve the emission performance of CsPbBr3NCs with the assistance of [Bmim]BF4, which contributes to the removal of Pb0deep traps and passivation of surface defects simultaneously.
The N-terminal substrate specificity of the SurE peptide cyclase
Authors: Fazal Asif , Wheeler Jake , Webb Michael E. , Seipke Ryan F.
Published: September 2022

The N-terminal substrate specificity of the SurE peptide cyclase was elucidated using a combination of on-resin biomemtic substrates and conventional SNAC thioesters.
Synthesis of nuevamine and a cyano-chilenine analog via divergent C(sp3)–H bond functionalization of isoindolinone derivatives
Authors: Gómez-Prado Raúl A. , Silva Ana L. , Miranda Luis D.
Published: September 2022

Divergent C(sp3)–H bond functionalizations of isoindolinone derivatives were developed to synthesize nuevamine, a cyano-chilenine derivative, and two related analogs.
Silver-mediated annulation between 5-H-1,2,3-thiadiazoles and 1,3-dicarbonyl compounds to construct polysubstituted furans
Authors: Feng Mengxia , Jiang Huanfeng , Huang Liangbin
Published: September 2022

An efficient synthesis of polysubstituted furans by Ag(i)-mediated annulation between 5-H-1,2,3-thiadiazoles and 1,3-dicarbonyl compounds is reported.
Impact of physicochemical changes in milk ultrafiltration permeate concentrated by reverse osmosis on calcium phosphate precipitation
Authors: Paugam Nolwenn , Pouliot Yves , Remondetto Gabriel , Maris Thierry , Brisson Guillaume
Published: September 2022

This study aimed to characterize and compare the mechanisms of calcium phosphate precipitation in skimmed milk ultrafiltration permeate (MP) and MP preconcentrated by reverse osmosis (ROMP).
A controllable one-pot hydrothermal synthesis of spherical cobalt ferrite nanoparticles: synthesis, characterization, and optical properties
Authors: Refat Nedaa M. , Nassar Mostafa Y. , Sadeek Sadeek A.
Published: September 2022

A controllable synthesis of spherical cobalt ferrite nanoparticles with average crystallite size in the range of 3.6–12.9 nm using a facile, eco-friendly, hydrothermal method.
Introducing a green nanocatalytic process toward the synthesis of benzo[a]pyrano-[2,3-c]phenazines utilizing copper oxide quantum dot-modified core–shell magnetic mesoporous silica nanoparticles as high throughput and reusable nanocatalysts
Authors: Dehnavian Mohaddeseh , Dehghani Abdulhamid , Moradi Leila
Published: September 2022

In this contribution, a green, simple, efficient, and straightforward nanocatalytic process was developed for the synthesis of benzo[a]pyrano[2,3-c]phenazine derivatives under mild thermal conditions.
Synthesis and investigation of phosphorus-free ionic liquids as multifunctional lubricating additives
Authors: Su Huaigang , Zhao Qin , Chen Yunlong , Zhao Qilong , Jiang Cheng , Lou Wenjing
Published: September 2022

Two phosphorus-free multifunctional protic ionic liquids were devolpoed for lubricating additives. The low corrosion, excellent tribological behavior and antioxidation property make them suitable as multifunctional additives in various lubricants.
Impact of localized surface plasmon resonance on efficiency of zinc oxide nanowire-based organic–inorganic perovskite solar cells fabricated under ambient conditions
Authors: Rahman Md. Mijanur , Reshmi Tabassum Hasnat , Ahmed Suhel , Alam Md. Ashraful
Published: September 2022

Organometal halide perovskites as hybrid light absorbers have been investigated and used in the fabrication of perovskite solar cells (PSCs) due to their low-cost, easy processability and potential for high efficiency.
Two-dimensional MXenes: recent emerging applications
Authors: Goel Neeraj , Kushwaha Aditya , Kumar Mahesh
Published: September 2022

This review analytically summarises the state-of-art advances of MXene based devices with a particular emphasis on modern applications.
Novel quinoxaline derivatives as dual EGFR and COX-2 inhibitors: synthesis, molecular docking and biological evaluation as potential anticancer and anti-inflammatory agents
Authors: Ahmed Eman A. , Mohamed Mamdouh F. A. , Omran Omran A.
Published: September 2022

Novel quinoxaline derivatives (2a–d, 3, 4a, 4b, 5–15) have been synthesized and screened for theirin vitroanticancer and COX-2 inhibitory activities. Compounds 4a, 5, 11 and 13 proved to be the most potent anticancer and COX-2 inhibitors.
Retraction: Long non-coding RNA PVT1 facilitates cell proliferation by epigenetically regulating FOXF1 in breast cancer
Authors: Guo Guangcheng , Wang Fang , Han Mingli , Gu Yuanting , Duan Xin , Li Lin
Published: September 2022

Retraction of ‘Long non-coding RNA PVT1 facilitates cell proliferation by epigenetically regulating FOXF1 in breast cancer’ by Guangcheng Guo et al., RSC Adv., 2018, 8, 2740–2750, https://doi.org/10.1039/C7RA12042G.
Messages about valued knowledge products and processes embedded within a suite of transformed high school chemistry curricular materials
Authors: Schafer Adam G. L. , Kuborn Thomas M. , Schwarz Cara E. , Deshaye Megan Y. , Stowe Ryan L.
Published: September 2022

The way high school chemistry curricula are structured has the potential to convey consequential messages about knowledge and knowing to students and teachers. If a curriculum is built around practicing skills and recalling facts to reach “correct” answers, it is unlikely class activities will be seen (by students or the teacher) as opportunities to figure out causes for phenomena. Our team of teachers and researchers is working to understand how enactment of transformed curricular materials can support high school chemistry students in making sense of perplexing, relatable phenomena. Given this goal, we were surprised to see that co-developers who enacted our materials overwhelmingly emphasized the importance of acquiring true facts/skills when writing weekly reflections. Recognition that teachers’ expressed aims did not align with our stated goal of “supporting molecular-level sensemaking” led us to examine whether the tacit epistemological commitments reflected by our materials were, in fact, consistent with a course focused on figuring out phenomena. We described several aspects of each lesson in our two-semester curriculum including: the role of phenomena in lesson activities, the extent to which lessons were 3-dimensional, the role of student ideas in class dialogue, and who established coherence between lessons. Triangulation of these lesson features enabled us to infer messages about valued knowledge products and processes materials had the potential to send. We observed that our materials commonly encouraged students to mimic the structure of science practices for the purpose of being evaluated by the teacher. That is, students were asked to “go through the motions” of explaining, modelingetc.but had little agency regarding the sorts of models and explanations they found productive in their class community. This study serves to illustrate the importance of surfacing the tacit epistemological commitments that guide curriculum development. Additionally, it extends existing scholarship on epistemological messaging by considering curricular materials as a potentially consequential sources of messages.
The role of A-site composition in the photostability of tin–lead perovskite solar cells
Authors: Huerta Hernandez Luis , Haque Md Azimul , Sharma Anirudh , Lanzetta Luis , Bertrandie Jules , Yazmaciyan Aren , Troughton Joel , Baran Derya
Published: September 2022

The content of methylammonium dominates the photostability of tin–lead perovskite solar cells.
Gold nanoparticle decorated filter papers as hydrovoltaic devices
Authors: Beaton Graham C. , Kumar Rahul , Neokleous Nick , Liu Guojun , Stamplecoskie Kevin
Published: September 2022

In this work we showcase the transformation of laboratory filter paper into a gold nanoparticle decorated hydrovoltaic device with power output density (3.3 μW g−1), open circuit voltage (0.423 V) and short-circuit current (−5.42 μA).
Thermal conversion of black liquor solids to monomeric aromatic hydrocarbons based on synergistic catalysis by Na compounds and HZSM-5
Authors: Chang Guozhang , Wang Juzheng , Cui Weiwei , Wang Cuiping , Zhang Jian
Published: September 2022

This work assessed the feasibility of producing aromatic hydrocarbons from catalytic pyrolysis of a black liquor solid (BLS) and the lignin extracted from the BLS (BLL).
A particulate blood analogue based on artificial viscoelastic blood plasma and RBC-like microparticles at a concentration matching the human haematocrit
Authors: Rubio A. , López M. , Rodrigues T. , Campo-Deaño L. , Vega E. J.
Published: September 2022

A novel blood analogue fluid able to reproduce the rheological and some physiological characteristics of real human blood at body temperature.
Ultrahigh efficiency CH4 photocatalytic conversion to C1 liquid products over cheap and vacancy-rich CeO2 at 30 °C
Authors: Tang Hailong , Ju Tangtong , Dai Yue , Wang Meiling , Ma Yongqing , Wang Min , Zheng Ganhong
Published: September 2022

CeO2 with abundant surface Ov was prepared for direct CH4 photocatalytic conversion. Both high C1 product yield and selectivity of 3.88 mmol (gcat h)−1 and 97.73% were obtained.
Nickel-vanadium-cobalt ternary layered double hydroxide for efficient electrocatalytic upgrading of 5-hydroxymethylfurfural to 2,5-furancarboxylic acid at low potential
Authors: Gao Lifang , Wen Xin , Liu Shipeng , Qu Dongyang , Ma Yingming , Feng Jianhui , Zhong Zhiwei , Guan Hongyu , Niu Li
Published: September 2022

A NiVCo-LDHs electrocatalyst with active oxygen vacancies was constructed for the efficient conversion of HMF to FDCA.
Drastic performance improvement of indoor organic photovoltaics using a novel laminated homojunction hole-transport layer
Authors: Kim Tae Hyuk , Neu Justin Scott , Kim Sung Hyun , Saeed Muhammad Ahsan , You Wei , Shim Jae Won
Published: September 2022

A homojunction PTQ10 polymer offers suppressed charge recombination and maximized quasi-fermi level splitting thereby leading to an improvement of over 25% in the power conversion efficiency of PTQ10:Y6-based devices under halogen illumination.
Boosting ethanol electrooxidation at RhBi alloy and Bi2O3 composite surfaces in alkaline media
Authors: Liu Yue , Lan Bing , Yang Yaoyue
Published: September 2022

RhBi alloy and Bi2O3 composite interfaces show superior EOR performance via weakening adsorption of intermediates and enriching formation of OHad species.
Raising the solubility of Gd yields superior thermoelectric performance in n-type PbSe
Authors: Deng Qian , Zhong Yan , Zhao Canyang , Zhang Fujie , Xia Cheng-Liang , Chen Yue , Ang Ran
Published: September 2022

The highly electronegative halogen element Br can promote the dissolution of high-melting Gd in PbSe, thereby enhancing its band modification effect, leading to a realization of high thermoelectric performance for n-type Pb0.997Gd0.003Br0.003Se0.997.
Nanospacial effect of citric acid-coordinated hydroxyapatite nanoparticle films on protein adsorption and cell adhesion states
Authors: Liu Zizhen , Kawagoe Daisuke , Tagaya Motohiro
Published: September 2022

The control of protein adsorption states on nanostructured citric acid-coordinated hydroxyapatite nanoparticle films was successfully realized to resultantly achieve excellent cell culture properties by the nanospaces.
Screening semiconducting polymers to discover design principles for tuning charge carrier mobility
Authors: Manurung Rex , Troisi Alessandro
Published: September 2022

Studying the electronic structure and orbital localization characteristics for a sample of 36 different polymer backbone structures the features of the monomer sequence that lead to greater charge delocalization are identified.
Energy-saving chromium-activated garnet-structured phosphor-converted near-infrared light-emitting diodes
Authors: Rajendran Veeramani , Huang Wen-Tse , Chen Kuan-Chun , Chang Ho , Liu Ru-Shi
Published: September 2022

Phosphor-converted near-infrared light-emitting diodes based on garnet structure as the host for chromium incorporation are promising light sources for modern compact devices and are also an excellent alternative to traditional tungsten lamps.
Side chain engineering of indacenodithieno[3,2-b]thiophene (IDTT)-based wide bandgap polymers for non-fullerene organic photovoltaics
Authors: He Zehua , Dai Tingting , Meng Ting , Lei Peng , Geng Yanfang , Qin Linjiao , Wu Jiang , Yu Jiagui , Zeng Qingdao , Zhou Erjun
Published: September 2022

The highest power conversion efficiency of indacenodithieno[3,2-b]thiophene-based polymers blending with non-fullerene acceptors is obtained based on optimal side chain engineering.
An Arabidopsis thaliana arabinogalactan-protein (AGP31) and several cationic AGP fragments catalyse the boron bridging of rhamnogalacturonan-II
Authors: Sanhueza Dayan , Begum Rifat Ara , Albenne Cécile , Jamet Elisabeth , Fry Stephen C.
Published: September 2022

Rhamnogalacturonan-II (RG-II) is a complex pectic domain in plant primary cell walls. In vivo, most RG-II domains are covalently dimerised via borate diester bridges, essential for correct cell-wall assembly, but the dimerisation of pure RG-II monomers by boric acid in vitro is extremely slow. Cationic ‘chaperones’ can promote dimerisation, probably by overcoming the mutual repulsion between neighbouring anionic RG-II molecules. Highly effective artificial chaperones include Pb2+ and polyhistidine, but the proposed natural chaperones remained elusive. We have now tested cationic peptide fragments of several Arabidopsis thaliana arabinogalactan-proteins (AGPs) as candidates. Fragments of AGP17, 18, 19 and 31 were effective, typically at ∼25 µg/ml (9–19 µM), promoting the boron bridging of 16–20 µM monomeric RG-II at pH 4.8 in vitro. Native AGP31 glycoprotein was also effective, and hexahistidine was moderately so. All chaperones tested interacted reversibly with RG-II and were not consumed during the reaction; thus they acted catalytically, and may constitute the first reported boron-acting enzyme activity, an RG-II borate diesterase. Many of the peptide chaperones became less effective catalysts at higher concentration, which we interpret as due to the formation of RG-II–peptide complexes with a net positive charge, as mutually repulsive as negatively charged pure RG-II molecules. The four unique AGPs studied here may serve an enzymic role in the living plant cell, acting on RG-II within Golgi cisternae and/or in the apoplast after secretion. In this way, RG-II and specific AGPs may contribute to cell-wall assembly and hence plant cell expansion and development.
Charge detection mass spectrometry for the analysis of viruses and virus-like particles
Authors: Miller Lohra M. , Jarrold Martin F.
Published: September 2022

Heterogeneity usually restricts conventional mass spectrometry to molecular weights less than around a megadalton. As a single-particle technique, charge detection mass spectrometry (CDMS) overcomes this limitation. In CDMS, the mass-to-charge (m/z) ratio and charge are measured simultaneously for individual ions, giving a direct mass measurement for each ion. Recent applications include the analysis of viruses, virus-like particles, vaccines, heavily glycosylated proteins, and gene therapy vectors.
Implication of microplastics on soil faunal communities — identifying gaps of knowledge
Authors: Boots Bas
Published: September 2022

There is mounting evidence that plastic and microplastic contamination of soils can affect physico-chemical processes and soil fauna, as has been excellently summarised in many recently published meta-analyses and systematic reviews elsewhere. It has become clear that impacts are highly context dependent on, e.g. polymer type, shape, dose and the soil itself. Most published studies are based on experimental approaches using (semi-)controlled laboratory conditions. They typically focus on one or several representative animal species and their behaviour and/or physiological response — for example, earthworms, but rarely on whole communities of animals. Nevertheless, soil animals are rarely found in isolation and form part of intricate foodwebs. Soil faunal biodiversity is complex, and species diversity and interactions within the soil are very challenging to unravel, which may explain why there is still a dearth of information on this. Research needs to focus on soil animals from a holistic viewpoint, moving away from studies on animals in isolation and consider different trophic levels including their interactions. Furthermore, as evidence obtained from laboratory studies is complemented by relatively few studies done in field conditions, more research is needed to fully understand the mechanisms by which plastic pollution affects soil animals under realistic field conditions. However, field-based studies are typically more challenging logistically, requiring relatively large research teams, ideally of an interdisciplinary nature to maintain long-term field experiments. Lastly, with more alternative, (bio)degradable and/or compostable plastics being developed and used, their effects on soil animals will need to be further researched.
PRODIGE – envelope to disk with NOEMA
Authors: Valdivia-Mena M. T. , Pineda J. E. , Segura-Cox D. M. , Caselli P. , Neri R. , López-Sepulcre A. , Cunningham N. , Bouscasse L. , Semenov D. , Henning Th. , Piétu V. , Chapillon E. , Dutrey A. , Fuente A. , Guilloteau S. , Hsieh T. H. , Jiménez-Serra I. , Marino S. , Maureira M. J. , Smirnov-Pinchukov G. V. , Tafalla M. , Zhao B.
Published: September 2022

Context. In the past few years, there has been a rise in the detection of streamers, asymmetric flows of material directed toward the protostellar disk with material from outside a star’s natal core. It is unclear how they affect the process of mass accretion, in particular beyond the Class 0 phase.

Aims. We investigate the gas kinematics around Per-emb-50, a Class I source in the crowded star-forming region NGC 1333. Our goal is to study how the mass infall proceeds from envelope to disk scales in this source.

Methods. We use new NOEMA 1.3 mm observations, including C18O, H2CO, and SO, in the context of the PRODIGE MPG – IRAM program, to probe the core and envelope structures toward Per-emb-50.

Results. We discover a streamer delivering material toward Per-emb-50 in H2CO and C18O emission. The streamer’s emission can be well described by the analytic solutions for an infalling parcel of gas along a streamline with conserved angular momentum, both in the image plane and along the line-of-sight velocities. The streamer has a mean infall rate of 1.3 × 10−6 M⊙ yr−1, five to ten times higher than the current accretion rate of the protostar. SO and SO2 emission reveal asymmetric infall motions in the inner envelope, additional to the streamer around Per-emb-50. Furthermore, the presence of SO2 could mark the impact zone of the infalling material.

Conclusions. The streamer delivers sufficient mass to sustain the protostellar accretion rate and might produce an accretion burst, which would explain the protostar’s high luminosity with respect to other Class I sources. Our results highlight the importance of late infall for protostellar evolution: streamers might provide a significant amount of mass for stellar accretion after the Class 0 phase.