Article
Biochemistry & Molecular Biology
Maria V. Kashina, Andrei A. Karcheuski, Mikhail A. Kinzhalov, Konstantin V. Luzyanin, Svetlana A. Katkova
Summary: A series of platinum complexes with phosphine and isocyanide ligands were synthesized and evaluated as catalysts for photocatalytic hydrosilylation of alkynes. The phosphine-isocyanide complexes showed high yields under violet light irradiation, while the parent phosphine complexes were more efficient under blue light irradiation.
Article
Chemistry, Applied
Nikita V. V. Shvydkiy, Klimentiy V. V. Rimskiy, Dmitry S. S. Perekalin
Summary: The readily available cyclobutadiene platinum complex [(C4Et4)PtCl2] can catalyze the hydrosilylation of alkenes and alkynes. The reaction occurs at room temperature and does not require any solvent. The products obtained include terminal and internal alkynes, as well as terminal alkenes, with yields ranging from 43% to 99%. Various tertiary silanes (Et3SiH, (EtO)(3)SiH, Ph3SiH) and the disubstituted silane Ph2SiH2 are suitable substrates for this reaction. The hydrosilylation reaction exhibits typical anti-Markovnikov regioselectivity, yielding mainly beta(E)-vinylsilanes from alkynes and linear alkyl silanes from alkenes.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yuxuan Wang, Qifeng Zhou, Xiaoxiao He, Ying Zhang, Hongwei Tan, Jianhua Xu, Cuihong Wang, Wei Wang, Xiping Luo, Jinquan Chen, Lin Xu
Summary: This study presents the successful design and synthesis of a novel family of platinum-acetylide dendrimers, which contain multiple photochromic units and exhibit high photochromic efficiency without affecting the individual switching properties. The resulting metallodendrimers show high conversion yield and fatigue resistance, and the photochromic property of each unit is unaffected by its neighbor. The full ring-closure of up to twenty-one units in one single dendrimer has been achieved.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Physical
Ming Huang, Xiaoyu Zhou, Youxiang Shao, Yinwu Li, Yan Liu, Zhuofeng Ke
Summary: This study discloses the divergent regioselective hydrosilylation and hydroboration of alkenes by a single manganese catalyst. The reactions proceed under mild conditions and exhibit a broad substrate scope and excellent functional group tolerance.
JOURNAL OF CATALYSIS
(2023)
Article
Materials Science, Multidisciplinary
Mikhail Dobrynin, Elina Sokolova, Mikhail A. Kinzhalov, Andrey S. Smirnov, Galina L. Starova, Vadim Yu Kukushkin, Regina M. Islamova
Summary: In this study, a family of platinum complexes were synthesized and used as hydrosilylation catalysts to prepare luminescent silicone rubbers. The silicone rubbers and the complexes exhibited similar emission spectra in the green region and strong phosphorescence, with potential applications in protective coatings and phosphor-converted white light-emitting diodes.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Chemistry, Organic
Sa-Na Yang, Chang-Hui Liu, Li-Bowen He, Hao Zheng, Chang-Sheng Kuai, Boshun Wan, Ding-Wei Ji, Qing-An Chen
Summary: In this article, a method for selectively and stereoselectively hydrosilylating isoprene using an abundant cobalt catalyst with varying ligands is disclosed. With a less hindered bidentate ligand, the reactions proceed through 4,1-hydrosilylation to produce allylsilanes with excellent regio- and stereoselectivities. Switching to a bulkier ligand efficiently diverts the reactions to 2,1-addition products for the first time. This regiodivergent protocol enables the modular construction of structurally diverse organosilanes with high atom economy and without the formation of stoichiometric byproducts.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Jiarui Chang, Man-Man Xue, Jie Zhang, Xuenian Chen
Summary: This study investigated the catalytic activities of platinum complexes on the hydrosilylation of aldimines. The results showed that the auxiliary ligand and donor substituent play crucial roles in affecting the catalytic activity of the platinum center. The hydride complex with less bulky donor substituents exhibited lower activity compared to the thiolate complexes with the same donor substituents.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2022)
Article
Polymer Science
Takahiro Ishida, Taichi Sotani, Natsuhiro Sano, Hiromitsu Sogawa, Fumio Sanda
Summary: This study demonstrates the chirality transfer from optically active diphosphine ligands to optically inactive platinum-containing polymers. The reaction produces different platinum complexes, with one polymer showing unique solubility and a folded helical conformation.
Article
Chemistry, Multidisciplinary
Tobias Vollgraff, Angelino Doppiu, Joerg Sundermeyer
Summary: We conducted an in-depth study on the sterically demanding Cp-synthon ligand transfer reagent isolated from the natural product guaiazulene, and discussed the synthesis and characterization of various metal complexes. Our findings demonstrate that renewable feedstock-based catalysts can replace traditional petrochemical-based catalysts in catalytic applications.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Carena L. Daniels, Eunbyeol Gi, Benjamin A. Atterberry, Rafael Blome-Fernandez, Aaron J. Rossini, Javier Vela
Summary: Heterobimetallic complexes have diverse structures and reactivities, and can serve as single-source precursors for synthesizing binary intermetallic compounds. This study investigates the binding energies of phosphorous-based ligands and the reactivity of heterobimetallic complexes, showing that stronger binding ligands inhibit access to active sites. The findings provide insights into ligand-binding energetics and predict reactivity as precursors and catalysts.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Laura Ibanez-Ibanez, Ariadna Lazaro, Carmen Mejuto, Margarita Crespo, Cristian Vicent, Laura Rodriguez, Jose A. Mata
Summary: In this study, the catalytic properties of pincer platinum complexes in alkyne hydrosilylation were investigated under both photo and thermal conditions. The results showed that visible light-induced hydrosilylation was more efficient, requiring lower catalyst loadings and allowing room temperature reactions. The platinum complexes acted as both photosensitizers and catalysts, enabling bond breaking/forming transformations. The reaction selectivity differed under photochemical and thermal conditions, with the photoinduced process exhibiting enhanced regio- and stereoselectivity.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ying-Xian Li, Liu-Ping Yang, Meng Yang, Ji-Jun Jiang, Gao-Feng Liu, Hsiu-Yi Chao
Summary: Three bipyridine platinum (II) complexes Pt-2-Pt-4 bearing indolyl ligand(s) were synthesized through intramolecular hydroamidation of alkynyl moieties of Pt-1. The structures of Pt-1-Pt-4 were determined by single crystal X-ray diffraction. The photophysical properties of these structurally related complexes Pt-1-Pt-4 have been studied.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Aleksandra Paderina, Sofia Slavova, Stanislav Petrovskii, Elena Grachova
Summary: A series of Pt(II) complexes with alkynylphosphonium and di-tert-butyl-2,2'-bipyridine (dtbpy) ligands were prepared and characterized. The complexes showed triplet emission in solution, which was controlled by the nature of the pi-conjugated linker in the alkynylphosphonium ligand. DFT calculations supported this conclusion and also showed that the complexes exhibited enhanced nonlinear optical properties and mechanochromic luminescence.
INORGANIC CHEMISTRY
(2023)
Article
Energy & Fuels
Yafei Tang, Anqi Wu, Wu Liu, Wenli Pei, Wanbing Guan, Subhash C. Singhal
Summary: This study investigates the anti-poisoning performance of flat-tube solid oxide fuel cells (FT-SOFCs) in high concentrations of H2S. The degradation rate of the cell is determined at different H2S concentrations, and humidification of H2 can restore the performance. The study identifies the cause of cell performance degradation and provides insights for the application of FT-SOFCs under high concentrations of H2S.
Article
Chemistry, Physical
Emaad M. A. Al-Janabi, Mohammad R. Hatshan, Syed Farooq Adil, Wesam R. Kadhum, Subhi A. Al-Jibori, Ahmed S. Faihan, Ahmed S. Al-Janabi
Summary: A series of new platinum(II) mixed ligand complexes have been synthesized and characterized, showing promising biological activity against pathogenic bacteria and lung cancer cells. Some complexes exhibited significant anti-bacterial and anti-cancer properties, highlighting their potential for further investigation.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Engineering, Multidisciplinary
Fang Guo, Wei Han, Xi-chao Su, Yu-jie Liu, Rong-wei Cui
Summary: This paper studies the problem of weapon transportation support scheduling on an aircraft carrier deck and presents a novel solution architecture. By considering the interference of the carrier-based aircraft deck layout, a mixed integer formulation is established to minimize the total objective. A bi-population immune algorithm is proposed to solve the problem, which outperforms all compared algorithms and significantly improves efficiency. The established model and algorithm effectively respond to the weapon support requirements of carrier-based aircraft under different sortie missions.
DEFENCE TECHNOLOGY
(2023)
Article
Biochemical Research Methods
Zhouxian Li, Qi Wang, Keyun Wang, Weibing Zhang, Mingliang Ye
Summary: Protein lysine monomethylation is an important post-translational modification, but enriching and identifying monomethylated lysine (Kme1) peptides is challenging. This study proposes an antibody-free chemical proteomics approach to capture Kme1 peptides and successfully identifies multiple Kme1 sites in cells.
Article
Chemistry, Applied
Zhinian Cheng, Yang Wang, Daokuan Jin, Jianxin Liu, Wenghang Wang, Yongqiang Gu, Wanxin Ni, Zhaoxuan Feng, Mingbo Wu
Summary: Porous carbon-based catalysts derived from petroleum pitch exhibit excellent propane conversion (45.6%) and alkenes selectivity (73.9%, propylene and ethylene) due to their abundant surface quinone/ketone C-O groups and appropriate adsorption/desorption strengths, providing a promising alternative for propane dehydrogenation (PDH) process.
Article
Agriculture, Multidisciplinary
Zhou Qun, Yuan Rui, Zhang Wei-yang, Gu Jun-fei, Liu Li-jun, Zhang Hao, Wang Zhi-qin, Yang Jian-chang
Summary: "Utilizing the heterosis of indica/japonica hybrid rice (IJHR) is an effective way to increase rice grain yield. Rational application of nitrogen (N) fertilizer plays a very important role in using the heterosis of IJHR to achieve its great yield potential. The study aimed to clarify the responses of grain yield and N utilization of IJHR to N application rates and the underlying physiological mechanism."
JOURNAL OF INTEGRATIVE AGRICULTURE
(2023)
Article
Environmental Sciences
Yan Yang, Li Zhou, Wenling Zhang, Yanjun Yang, Yanyan Liu, Li Pan, Yanbei Huo, Ruijuan Wang, Yupei Ba, Xiaoyu Ren, Yana Bai, Ning Cheng
Summary: This study provides further evidence that exposure to air pollutants in the first trimester of pregnancy significantly increases the risk of neural tube defects.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Yan Kang, Haoqin Ma, Zequan Jing, Chaonan Zhu, Yixin Li, Haiming Wu, Peng Dai, Zizhang Guo, Jian Zhang
Summary: The use of iron-modified biochar in constructed wetlands enhances the removal of benzofluoranthrene and ammonium by increasing microbial degradation. The iron-mediated biochar increases dissolved organic carbon content and enriches microbial abundance and key enzymes involved in PAH degradation. This study confirms that the use of iron-modified biochar in constructed wetlands enhances PAH removal.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Xinyuan Chen, Ying Cao, Kaixuan Zhang, Zhen Wang, Xuejie Xie, Yunxiang Wang, Kuo Men, Jianrong Dai
Summary: This study investigated the feasibility of synthesizing MRI images at different rotation angles using deep learning. The results showed that CycleGAN can synthesize MRI images in prone and lateral positions, which could be beneficial for gantry-free radiation therapy.
Review
Pharmacology & Pharmacy
Haijie Han, Su Li, Mingyu Xu, Yueyang Zhong, Wenjie Fan, Jingwei Xu, Tinglian Zhou, Jian Ji, Juan Ye, Ke Yao
Summary: Ocular diseases have a significant impact on patients' vision and quality of life, with a global prevalence of over 43 million blindness. However, delivering drugs effectively to the eyes, especially for intraocular disorders, remains a major challenge due to various ocular barriers. Recent advancements in nanocarrier technology provide a promising solution by improving drug penetration, retention, solubility, toxicity reduction, release duration, and targeted drug delivery. This review highlights the progress and applications of nanocarriers, specifically polymer- and lipid-based nanocarriers, in treating different eye diseases and their potential for efficient ocular drug delivery. It also discusses ocular barriers, administration routes, and future prospects and challenges in the field of nanocarriers for ocular disease treatment.
ADVANCED DRUG DELIVERY REVIEWS
(2023)
Review
Materials Science, Biomaterials
Ran Wei, Danjie Li, Sheng Jia, Yuhong Chen, Jiqiu Wang
Summary: Obesity has become a critical health burden during the global pandemic, and the melanocortin receptor-4 (MC4R) has been identified as a key genetic factor in severe and early onset obesity. Previous studies have focused on the central role of MC4R in energy intake and expenditure, but evidence suggests its expression in peripheral systems as well. This review aims to provide a comprehensive understanding of the central and peripheral roles of MC4R in energy metabolism and endocrine hormone homeostasis.
Article
Chemistry, Analytical
Jianglong Yao, Yujie Liu, Bingying Jiang, Ruo Yuan, Yun Xiang
Summary: A highly sensitive electrochemical and enzyme-free biosensor is developed for detecting LCN1 using a new aptamer triplex switch probe and dual signal amplification. The sensor can sensitively detect LCN1 from 5 pM to 1 nM with a detection limit of 0.85 pM. It also exhibits high interfering protein discrimination capability and can be used to monitor low levels of LCN1 in diluted tear samples.
Article
Chemistry, Multidisciplinary
Yuyan Li, Fanghua Zhang, Wendong Liu, Mingzheng Shao, Zhe Hao, Hongyan Zhang, Ruizhong Zhang, Xiyan Li, Libing Zhang
Summary: A DNA nanoprobe activated by glutathione (GSH) was developed for spatially selective sensing and imaging of miRNA in living cells. The nanoprobe consisted of metal-organic frameworks (MOFs) and DNA hairpin probes tethered to the MOF surface, with a disulfide bond in the hairpin loop. Cleavage of the disulfide bond by GSH triggered a strand-displacement reaction with target miRNAs, enabling fluorescence signal readout in situ. The combination of endogenous GSH activation and MOF improved the spatial resolution of miRNA detection and imaging.
CHEMICAL COMMUNICATIONS
(2023)
Article
Engineering, Multidisciplinary
Yuanyuan Wang, Rui Wang, Xiaofeng Ren, Junan Lei
Summary: In order to improve the density and accuracy of 3D texture measurement in pavement function evaluation, the traditional binocular reconstruction technology was improved in three aspects. Firstly, a single moving laser line was introduced for global scanning constraints to overcome the difficulty of installing and recognizing excessive laser lines. Secondly, four improved algorithms, including disparity replacement, superposition synthesis, subregion segmentation, and subregion segmentation centroid enhancement, were developed based on different constraint mechanisms. Lastly, an improved binocular reconstruction test device was developed to achieve the dual functions of 3D texture measurement and precision self-evaluation. Results showed that the introduction of a single laser line scanning constraint improved the measurement's accuracy. Among the various improved algorithms, the subregion segmentation centroid enhancement method had the best improvement effect and can be considered for use in pavement function evaluation.
CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Xiang Qin, Jingjing Liu, Genhui Teng, Baorui Liu, Yanhui Xie, Lin Ma, Dongying Hu
Summary: P25/PBP-TiO2 photoanode and N-doped porous carbon-supported Ni nanoparticles (Ni@NPC-X) were used in dye-sensitized solar cells (DSSCs) as the photoanode and counter electrode, respectively, creating a new perspective for blueberry-based photo-powered energy systems. The introduction of PBP into the P25 photoanode and the N doping of the porous carbon improved the adsorption capacity and electron transfer of the electrodes, resulting in higher power conversion efficiency (PCE) and good electrocatalysis and cycle stability.
Article
Integrative & Complementary Medicine
Yuehong Zhang, Dandan Dong, Youqin Yan, Hao Zhang, Guangli Wang, Wei Zhou, Wei Li, Li Qiu, Tingming Li, Quan Liu, Ping Xia, Lina Mao, Danlin Yang, Lu Yang, Fengmei Lian, Xiaolin Tong, Yuanming Ba
Summary: This study evaluated the effectiveness and safety of Jinshuibao capsules, a Traditional Chinese Medicine, in treating residual cardiopulmonary symptoms in convalescent COVID-19 patients. The results showed that after two weeks of treatment, the improvement rates and full recovery rates of symptoms such as dry cough, shortness of breath, sweating, chest tightness, and palpitation were significantly higher in the Jinshuibao group compared to the control group. The study suggests that Jinshuibao capsules have the potential to improve cardiopulmonary symptoms in convalescent COVID-19 patients with minimal adverse events.
JOURNAL OF TRADITIONAL CHINESE MEDICINE
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Ling Wang, Sidong Li, Yandong Liu, Kai Li, Lu Yin, Yongbin Su, Zhe Guo, Li Xu, Pengju Huang, Jian Geng, Wenshuang Zhang, Kangkang Ma, Kebin Cheng, Dong Yan, Glen M. Blake, Bo He, Yajun Liu, Xiaoguang Cheng
Summary: Increased bone marrow fat is associated with lower vBMD in both sexes. However, the relationship between marrow fat and other adipose tissues with vertebral fractures is not significant after adjusting for age.
EUROPEAN RADIOLOGY
(2023)
