Article
Environmental Sciences
Hugo Virgilio Perales-Vela, Martha Ofelia Salcedo-Alvarez, Rogelio Parra-Marcelo, Llarai Carolina Gaviria-Gonzalez, Alfredo De Jesus Martinez-Roldan
Summary: The study found that increasing concentrations of methyl viologen can lead to decreased growth, pigment content, and metabolic activity of Chlorella vulgaris. Inhibition of electron transport between quinone A and quinone B of photosystem II by MV directly impacts photosynthetic electron transport.
Article
Chemistry, Analytical
Lan Zhang, Yawen Kong, Xinchu Wang, Yujie Zhang, Debao Xiao
Summary: This study presents a method for the electrochromic detection of latent fingermarks on metal surfaces using 1,1'-dibenzyl-4,4'-bipyridinium dichloride. The electrochromic device can detect fingermarks on these surfaces within twenty seconds.
Article
Chemistry, Multidisciplinary
Megan E. Fleming, Daniel E. Hooks, Michael McBride, Nan Li, Jennifer A. Swift
Summary: Nanoindentation with a conospherical tip on the (100) face of cytosine monohydrate (CM) showed a highly anisotropic response due to the pro-chiral structure of the surface. Low rugosity slip planes induced movement of pi-stacks instead of their displacement along the hydrogen bonded ribbon direction. The anisotropic deformation supports a ribbon-rotation model and highlights the relationship between mechanical properties and solid state dehydration mechanism of hydrates.
Article
Chemistry, Organic
Chao Liu, Xiangwen Tan, Jinhui Zhang, Jiahao Wu, Wanqing Wu, Huanfeng Jiang
Summary: This article describes a palladium (II)-catalyzed Nu/Nu'-type 1,1-oxamidation and 1,1-diamination reaction of unactivated alkenyl carbonyl compounds followed by amination. The reaction features a lack of a directing group, good functional group tolerance, and easily operational catalytic reaction conditions. Mechanistic investigations suggest a unique route involving two consecutive nucleopalladations for this 1,1-difunctionalization.
Article
Chemistry, Multidisciplinary
Malgorzata Katarzyna Cabaj, Paulina Maria Dominiak
Summary: The structures of hypoxanthinium nitrate monohydrate crystals were determined at 15 different temperatures ranging from 20 to 285 K, revealing a phase transition from a twinned, low temperature phase to a high temperature phase. As temperature increases, the layers of the crystals shift against each other, leading to negative thermal expansion in one direction and positive expansion in the perpendicular direction. This phenomenon ceases at the phase transition point when the asymmetry in interactions in the structure disappears.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Thermodynamics
Marek Krolikowski, Mikolaj Wieckowski, Mojgan Ebrahiminejadhasanabadi, Wayne Michael Nelson, Paramespri Naidoo, Deresh Ramjugernath, Urszula Domanska
Summary: This study continues the research on the applicability of two new synthesized ionic liquids (ILs) in absorbing carbon dioxide. Experimental vapor-liquid equilibrium data for IL + CO2 systems were obtained, and new solubility data for the ILs were presented. The results show that these new ILs have higher CO2 solubility and can be modeled using mathematical equations.
FLUID PHASE EQUILIBRIA
(2022)
Article
Physics, Multidisciplinary
Sara Meir, Yuval Tamir, Hamootal Duadi, Eliahu Cohen, Moti Fridman
Summary: In this study, a temporal SU(1,1) interferometer based on two time lenses in a 4f configuration was developed and demonstrated. It has high temporal resolution, allows interference in both time and spectral domains, and is sensitive to ultrafast phase changes. It can be used for temporal mode encoding, imaging, and studying the ultrafast temporal structure of quantum light.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Physical
Zeqi Wang, Yidan Wu, Zidan Cao, Yu Li, Yinge Bai, Xiangping Zhang, Tao Li, Baozeng Ren
Summary: A series of imidazolium-based ionic liquids were synthesized as absorbents for ethylene dichloride (EDC) absorption. Among them, [Bmim][DCA] showed the best absorption performance with a capacity of 0.3700 g EDC/g IL. The anions of the ionic liquids played a more significant role in EDC absorption compared to the cations.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Robin Guthardt, Johannes Blanckenberg, Clemens Bruhn, Ulrich Siemeling
Summary: Planar-chiral homologues of 1,1'-diaminoferrocene with additional substituents are synthesized from ferrocene, allowing the creation of ferrocene-based planar-chiral diimines, diamines, N-heterocyclic carbenes, and tetrylenes through established procedures for 1,1'-diaminoferrocene.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Zhenpu Shi, Dongwei Bi, Lan Wang, Huifang Xu, Yanhong Yin, Hongyun Yue, Shuting Yang
Summary: Sulfurized polyacrylonitrile (SPAN) cathodes have great potential in commercial applications, but high sulfurization temperature leads to imperfect structure and hindered electron transfer. In this study, a vulcanizing agent S2Cl2 was used to reduce the reaction temperature and improve the structure and performance of the material.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zi-Xuan Wang, Keith Livingstone, Carla Huempel, Constantin G. Daniliuc, Christian Mueck-Lichtenfeld, Ryan Gilmour
Summary: Fluorinated small molecules are commonly used in the field of functional small molecules. Researchers have developed creative approaches to access these important materials by utilizing iodine(I)/iodine(III) catalysis to convert abundant alkene substrates into high-value (di)fluorinated products. They also discovered that enynes can be used as proxies for styrenes, simplifying the process and enabling the generation of highly versatile homopropargylic difluorides.
Article
Chemistry, Multidisciplinary
Christopher J. Smedley, Marie-Claire Giel, Thomas Fallon, John E. Moses
Summary: In this study, we present a method for synthesizing a stable precursor to ethene-1,1-disulfonyl difluoride (EDSF) and demonstrate its use in the preparation of various functionalized 4-membered ring carbocycles. These carbocycles are important structural motifs found in bioactive natural products and pharmaceutically relevant small molecules. We also show that the novel cyclobutene cores can be diversified through selective click chemistry, yielding high-efficiency sulfonate ester products. DFT calculations provide mechanistic insights into the reaction pathway.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Son H. Doan, Nhan N. H. Ton, Binh Khanh Mai, Thanh Vinh Nguyen
Summary: In this study, a novel application of P-1-Bu-t phosphazene as an organocatalyst for promoting 1,1-diboration reactions of unactivated aromatic and electron-deficient terminal alkynes is reported. The dual Bronsted and Lewis basicity of this phosphazene enables efficient activation of reaction substrates and allows for high selectivity.
Review
Biochemistry & Molecular Biology
Jordan S. Kozal, Heather N. Lynch, Joanna Klapacz, Rita S. Schoeny, Paul A. Jean, Andrew Maier
Summary: The analysis suggests that saturation of CYP2E1-GSH detoxification is the main molecular initiating event, and chronic tissue damage and inflammation are the key processes leading to tumor formation.
CHEMICO-BIOLOGICAL INTERACTIONS
(2023)
Article
Chemistry, Physical
Kazuhiko Matsumoto, Jingyuan Zhang, Nozomi Yoneda, Koma Numata, Kazuki Okuno, Rika Hagiwara
Summary: Concentrated electrolytes have shown great potential in electrochemical deposition. In this study, electrodeposition of Cr metal using a concentrated aqueous solution of Cr(II) (4.0 mol kg-1) without any additives was successfully achieved. The effects of concentration, current density, and agitation on the deposition process were investigated.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Chong Zhang, Zhong-Shan Li, Xi-Yan Dong, Yun-Yin Niu, Shuang-Quan Zang
Summary: Through self-assembly of chiral metal-organic frameworks and perovskite nanocrystals, a pair of crystalline enantiomeric adducts was successfully prepared, where the perovskite nanocrystals embedded into chiral MOFs exhibited photoswitchable CPL properties. Reversible CPL switches were achieved based on two chiral emission centers and their distinct characteristics under various external stimuli.
ADVANCED MATERIALS
(2022)
Article
Environmental Sciences
Zhi-Qiang Wang, Ling-Zhi Sun, Xiao-Nan Kuang, Yan-Lei Lu, Ying-Yu Li, Yu-Ping Yang, Jian-Ming Liu, Yun-Yin Niu, Qiong-Hua Jin
Summary: A series of rare earth complexes containing (alpha-PW12O40)(3-) and P=O ligand were synthesized by water bath, showing isostructural properties confirmed by X-ray single crystal diffraction. Complex 3 exhibited the highest photocatalytic degradation efficiency for methylene blue and maintained a 95% degradation level after five consecutive cycles. The complexes also demonstrated photocatalytic hydrogen evolution activity and were characterized using THz-TDS.
ENVIRONMENTAL RESEARCH
(2022)
Article
Oncology
Peibin Yue, Yinsong Zhu, Christine Brotherton-Pleiss, Wenzhen Fu, Nagendra Verma, Jasmine Chen, Kayo Nakamura, Weiliang Chen, Yue Chen, Felix Alonso-Valenteen, Simoun Mikhael, Lali Medina-Kauwe, Kathleen M. Kershaw, Maria Celeridad, Songqin Pan, Allison S. Limpert, Douglas J. Sheffler, Stephen L. Shiao, Marcus A. Tius, Francisco Lopez-Tapia, James Turkson
Summary: In this study, potent azetidine-based, selective, irreversible Stat3 inhibitors were identified that inhibit the growth of triple-negative breast cancer. These compounds amplify the Stat3-inhibitory activity and selectively bind to Stat3, leading to the inhibition of constitutive and ligand-induced Stat3 signaling. The inhibitors showed no effect on other proteins or cells without aberrantly-active Stat3.
Article
Environmental Sciences
Cong Hu, Yan-Lei Lu, Ying-Zhou Li, Yu-Ping Yang, Min Liu, Jian-Ming Liu, Ying-Yu Li, Qiong-Hua Jin, Yun-Yin Niu
Summary: Water pollution is a major concern for human health and sustainability, and photocatalytic degradation of organic dyes is an effective method. Novel lanthanide complexes were synthesized as catalysts for high removal rates of dyes in sewage. Terahertz spectroscopy can distinguish small differences between these complexes, showing potential for sensitive characterization.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Honghao Wang, Dongmei Liu, Mingming Wei, Weifeng Qi, Xia Li, Yunyin Niu
Summary: The study successfully demonstrated highly sensitive and selective detection of colchicine using a constructed Eu(III)-organic framework, opening up new possibilities for luminescent sensing applications of pollutants in the environment.
ENVIRONMENTAL RESEARCH
(2022)
Article
Genetics & Heredity
Yi-Ming Guo, Jian-Hao Cheng, Hao Zhang, Jin-Wei He, Hua Yue, Wei-Wei Hu, Jie-Mei Gu, Yun-Qiu Hu, Wen-Zhen Fu, Chun Wang, Zhen-Lin Zhang
Summary: This study investigated the association between genetic variation of the POSTN gene and the prevalence of vertebral fractures and bone mineral density (BMD) in Chinese postmenopausal women. The study found that the rs9603226 variant of POSTN was significantly associated with vertebral fractures, while the rs3923854 variant was associated with serum periostin levels. These findings suggest that genetic variation of the POSTN gene may be a predicting factor for the risk of vertebral fractures, and serum periostin levels could be a potential biochemical parameter for osteoporosis in Chinese postmenopausal women.
Article
Endocrinology & Metabolism
Ziyuan Wang, Xiang Li, Ya Wang, Wenzhen Fu, Yujuan Liu, Zhenlin Zhang, Chun Wang
Summary: This study retrospectively investigated the clinical characteristics and genetic mutations of 36 Chinese patients with ADO II. The results showed that minor trauma-related fractures were the most common clinical manifestation of the disease, while visual loss and bone marrow failure were rare. The condition of ADO II appeared to be stable in most patients. The mutation c.2299C>T (p.Arg767Trp) was the most common variant, while the mutation c.937G>A [p.(Glu313Lys)] was associated with a more severe phenotype.
FRONTIERS IN ENDOCRINOLOGY
(2022)
Review
Biochemistry & Molecular Biology
Xing-Xing Zhang, Jian Li, Yun-Yin Niu
Summary: This paper reviews the most stable conformation of crystalline three-dimensional cyclophane achieved by self-assembling based on changing the type of aromatic compound or regulating the type and number of bridging groups. The study found that [3(n)] cyclophanes have stronger donor capability and could potentially serve as a new type of electron donor for innovative electron conductive materials.
Article
Chemistry, Inorganic & Nuclear
Xiaoyu Guo, Xiaojia Wang, Yunyin Niu
Summary: In this paper, two new compounds 1 and 2 were synthesized by reacting a novel cationic template L1 with CuSCN and AgSCN, respectively. The compounds were characterized by various techniques and their photocatalytic degradation effects on TC and NOR were studied. Compound 1 showed higher degradation efficiency and was further investigated for factors affecting photocatalytic degradation and the mechanism involved. Additionally, compound 1 exhibited good degradation effect on norfloxacin and potential recognition ability towards Fe3+.
JOURNAL OF CLUSTER SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Xingxing Zhang, Jian Li, Yunyin Niu
Summary: Two new inorganic-organic hybrid crystals based on PbI2, namely {[L1]center dot[Pb2I6]}(n) (1) and {[L2](2)center dot[Pb3I10]}(n) (2), were successfully assembled through the solvent evaporation method. Compound 1 exhibited a high iodine capture performance with an adsorption rate of 96.59%. Moreover, compound 1 demonstrated good iodine adsorption and recyclability in cyclic experiments. Therefore, compound 1 holds great potential as an effective iodide capture adsorbent.
Article
Biochemistry & Molecular Biology
Chenfei Ren, Jian Li, Xingxing Zhang, Yunyin Niu
Summary: In this paper, two benzimidazole derivative ligands were synthesized using o-phenylenediamine and n-pyridine formaldehyde. The ligands were then reacted with selected metal salts to obtain compounds 1-4. These compounds were characterized by various analytical techniques and were found to exhibit photocatalytic degradation of ciprofloxacin.
Article
Chemistry, Physical
Chenfei Ren, Jian Li, Xingxing Zhang, Yunyin Niu
Summary: The design and synthesis of composite materials with new structures/properties have significant practical importance for the degradation of organic pollutants in aquatic environments. In this study, five new supramolecular materials were synthesized by introducing an amino group into a series of nitrogen-containing cationic ligands (L1-L3) through a reaction. The degradation effects of these compounds on ciprofloxacin (CIP) under visible light were evaluated, and compounds 1 and 4 were found to have better degradation effects compared to other compounds. Additionally, the optimal conditions for the photocatalytic degradation of CIP by compound 1 and 4 were determined.
Article
Chemistry, Physical
Wenzhen Fu, Natalia M. M. Neris, Yue Fu, Yunlong Zhao, Benjamin Krohn-Hansen, Peng Liu, Yang Yang
Summary: This study describes a metalloredox biocatalysis strategy to repurpose natural cytochromes P450 for catalysing asymmetric radical cyclization to arenes through an unnatural electron transfer mechanism. Directed evolution yielded a series of engineered P450 aromatic radical cyclases with complementary selectivities. The excellent tunability of this metalloenzyme family provides an exciting platform for utilizing free radical intermediates in asymmetric catalysis.
Article
Chemistry, Physical
Xing-Xing Zhang, Xiao-Jiao Wang, Yun-Yin Niu
Summary: In this study, three new supramolecular materials were synthesized by solution volatilization reaction and characterized. It was found that one of the materials showed good degradation effect on tetracycline under visible light irradiation.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Proceedings Paper
Computer Science, Interdisciplinary Applications
Wenzhen Fu, Yixin Zhong, Baitong Chen, Yi Cao, Jiazi Chen, Hanhan Cong
Summary: DNA N6 methyladenine (6mA) is an extensively studied and widespread epigenetic modification that plays a vital role in cell growth and development. The existing biological experimental methods are expensive and time-consuming, prompting the development of a targeted and efficient computing model like i6mA-word2vec for the prediction of 6mA sites. Experimental results indicate that this computational model performs better.
INTELLIGENT COMPUTING THEORIES AND APPLICATION, ICIC 2022, PT II
(2022)
