Article
Nanoscience & Nanotechnology
Quyen T. Nguyen, Elodie Rousset, Van T. H. Nguyen, Vincent Colliere, Pierre Lecante, Wantana Klysubun, Karine Philippot, Jerome Esvan, Marc Respaud, Gilles Lemercier, Phong D. Tran, Catherine Amiens
Summary: An efficient hybrid photocatalyst for water oxidation, composed of a ruthenium polypyridyl complex grafted onto core/shell Fe@FeOx nanoparticles through a phosphonic acid group, showed significantly improved performance compared to traditional photocatalysts. This enhancement is attributed to more efficient electron transfer resulting from the covalent link between the ruthenium photosensitizer and the Fe@FeOx catalyst.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Zhen-Yi Wu, Qian-Xin Zhang, Li-Jing Huang, Yu-Jin Xu, Ding-Liang Tang
Summary: The research focuses on the development of a heterogeneous catalyst, MWCNT-bpyRutpy, which is synthesized by covalently bonding ruthenium-based complex onto multi-walled carbon nanotubes to maximize the molecular catalytic efficiency. The nanocatalyst shows enhanced oxygen evolution reaction kinetics, intrinsic activity, and specific surface area of electrochemical activity, resulting in excellent OER performance with low overpotential, low Tafel slope, and relatively high turnover frequency.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Huihui Zhao, Xinghao Zhang, Yaowen Zhang, Yuzhuang Song, Chen Li, Kang Liu, Dingxuan Ma
Summary: This study reports a method for preparing bifunctional COF-derived water-splitting electrocatalysts, which exhibit excellent HER and OER performance under alkaline conditions. The obtained electrocatalyst shows higher activity than the commercial Pt/C and RuO2.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Engineering, Electrical & Electronic
Bian Zhenglan, Zhao Chunpeng, Chu Fenghong
Summary: This article addresses the questions raised by F. Formenti regarding the suitability of ruthenium complexes for clinical applications. It highlights the potential of ruthenium in biomedical applications and emphasizes the role of hydrogels in protecting ruthenium indicators. The sensing system in the study demonstrates a shorter response time and other excellent properties.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Rahul T. Kadakia, Raphael T. Ryan, Daniel J. Cooke, Emily L. Que
Summary: We present a novel responsive F-19 MRI agent with a pentafluorosulfanyl (-SF5) tag, which can reversibly detect reducing environments by Fe-II/III redox couple. The agent shows no F-19 MR signal in the Fe-III form due to paramagnetic relaxation enhancement, but demonstrates a strong F-19 signal upon rapid reduction to Fe-II with cysteine. The agent's reversibility is confirmed by successive oxidation and reduction studies. Additionally, the -SF5 tag allows for "multicolor imaging" with other fluorinated tags, as demonstrated by simultaneous monitoring of the F-19 MR signal of this -SF5 agent and a hypoxia-responsive agent with a -CF3 group.
Article
Polymer Science
Lisa Rita Magnaghi, Camilla Zanoni, Denise Bellotti, Giancarla Alberti, Paolo Quadrelli, Raffaela Biesuz
Summary: Carboxymethyl cellulose is a promising cellulose derivative with low cost, abundancy, biocompatibility, unique properties, and chemical reactivity. This study proposes a two-step reaction for covalent anchoring of sulfonic groups to CMC, allowing for the production of ready-to-use functional materials with high yields. By utilizing a pH-sensitive dye as a sulfonated molecule, the functional material shows potential for development of colorimetric miniaturized sensors, as demonstrated in an application on real samples.
Article
Chemistry, Analytical
Fang Niu, Jia-Lin Zhu, Ming-Kun Xu, Yong Ding, Li-Ming Tao, Jun Jin
Summary: Viologen-based covalent triazine frameworks (Vio-CTFs) were constructed via ionic thermal polymerization in melt ZnCl2 at 400-550 degrees C. The prepared Vio-CTFs showed excellent NO2 sensing ability with high response values, fast response and recovery, unique selectivity and stability. The viologen fragment was identified as the active site for NO2 adsorption, and DFT calculation was conducted to explore the NO2 sensing mechanism.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Engineering, Environmental
Abhishek Kumar, Rita Meunier-Prest, Frederic Herbst, Olivier Heintz, Eric Lesniewska, Marcel Bouvet
Summary: Covalent grafting of small organic molecules on a conducting surface can tune the interfacial electrical properties of electronic devices. In this study, a series of aryls with different substituents were electrografted onto an ITO electrode and used for ammonia sensing in heterojunction devices. The substituents had a strong influence on the mass loading, with methoxy-bearing aryl forming multilayers and hydrophobic or bulky groups preferring monolayer growth. The organic coatings had high surface passivating properties and contained structural defects in the form of azo and imine nitrogen functionalities. The electrografted aryls, when combined with lutetium bis-phthalocyanine (LuPc2), exhibited a bias-dependent interfacial conductivity and improved ammonia sensing properties compared to LuPc2 resistor, with a reversible, repeatable, and faster response and low interference from humidity fluctuation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Yuxiang Zhao, Ying Liang, Daoxiong Wu, Hao Tian, Tian Xia, Wenxin Wang, Weiyu Xie, Xin-Ming Hu, Xinlong Tian, Qi Chen
Summary: In this work, an efficient hydrogen evolution reaction (HER) catalyst, Ru@COF-1, was successfully prepared by complexation of triazine-cored sp(2) carbon-conjugated covalent organic frameworks (COFs) with ruthenium ion. The Ru@COF-1 catalyst exhibited lower overpotential and higher stability in acidic electrolytes compared to other COFs-based electrocatalysts. The nitrogen atom protonation of triazines in the acidic media greatly improved the conductivity and electrocatalytic durability of Ru@COF-1. Density functional theory calculations revealed that tetracoordinated Ru-N2Cl2 moieties contributed significantly to the outstanding HER performance of Ru@COF-1. This study provides a new direction for the development of protonated HER electrocatalysts in acidic media.
Article
Biotechnology & Applied Microbiology
Weizhen Li, David McLeod, John T. Ketzenberger, Grant Kowalik, Rebekah Russo, Zhenyu Li, Matthew W. Kay, Emilia Entcheva
Summary: Human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) are a scalable experimental model relevant to human physiology. Researchers have developed a system for high-throughput long-term optical measurements of peri-cellular oxygen in cardiac syncytia grown in glass-bottom 96-well plates. This system allows for tracking cellular oxygen consumption, metabolic perturbations, and characterization of the maturation of hiPSC-CMs.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Jixian Wang, Lei Li, Shan Jiang, David J. Young, Zhi-Gang Ren, Hong-Xi Li
Summary: This study presents a series of SH-group-functionalized covalent organic frameworks (COFs) as prospective photoactive materials for photocatalytic hydrogen evolution. The use of nickel thiolate as a cocatalyst significantly enhances the hydrogen evolution rate.
Article
Agriculture, Multidisciplinary
Lu Chen, Qiandai Shi, Qingfeng Dong, Yu Du, Zhiyun Peng, Qiaohui Zeng, Zihao Lin, Jieer Qiu, Yong Zhao, Jing Jing Wang
Summary: A novel photodynamic inactivation (PDI)-mediated antimicrobial film made of polylactic acid/5-aminolevulinic acid (PLA/ALA) was successfully fabricated using low-temperature plasma. The film displayed enhanced barrier properties and exhibited excellent antibacterial and antibiofilm effects against various pathogens and spoilage bacteria. Moreover, it effectively inhibited bacterial growth and preserved the quality of ready-to-eat salmon, thereby extending its shelf life.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Z. Wang, C. Li, S. Huang, X. Ma, Y. Sun, J. Zhao, S. Gou
Summary: Molecular aggregation can improve the performance of a photosensitizer, and a supramolecular photosensitizer RuFF-NPs with excellent water dispersity, enhanced singlet oxygen generation, red-shifted absorption, improved biocompatibility, and efficient dual phototherapeutic performance has been fabricated. RuFF-NPs exhibits a high tumor growth inhibition rate in cancer phototherapy and allows the visualization of tumor penetration and spatial distribution at the molecular level.
MATERIALS TODAY NANO
(2022)
Article
Multidisciplinary Sciences
Nong Lu, Zhihong Deng, Jing Gao, Chao Liang, Haiping Xia, Pingyu Zhang
Summary: This study reports on the photoactivation of an osmium peroxo complex and its potential use in the treatment of hypoxic tumors through chemotherapy and photodynamic therapy under blue light irradiation.
NATURE COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Ashish A. Nimbekar, Rajendra R. Deshmukh
Summary: In this study, Polyaniline (PANI) was grafted onto polyester fabric through chemical oxidative polymerization, with O-2 plasma treatment enhancing grafting uniformity and conductivity. The strong interfacial bonding achieved on the surface of polyester fabric showed promising results for detection of ammonia gas.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Oncology
Yongsheng Cai, Honghong Dong, Xinyang Li, Yi Liu, Bin Hu, Hui Li, Jinbai Miao, Qirui Chen
Summary: This study developed a nomogram for predicting the risk of postoperative venous thromboembolism (VTE) in patients with stage IA non-small cell lung cancer (NSCLC). The nomogram showed good discriminative power and clinical benefit, and can assist clinicians in making decisions regarding prevention and treatment.
Article
Chemistry, Multidisciplinary
Jiemin Qiu, Weihao Ye, Congcong Chen, Zhiqiang Xu, Chaofan Hu, Jianle Zhuang, Hanwu Dong, Bingfu Lei, Guangqi Hu, Yingliang Liu
Summary: In this study, three-component water-soluble carbon dots (OP-CDs) were successfully synthesized, which exhibited excellent UV absorption and high stability. The incorporation of OP-CDs and PVA resulted in a high-performance UV-shielding film with enhanced broad-spectrum UV shielding performance and improved mechanical properties, resistance to photocatalytic activity, and anti-UV aging ability.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Min Zhong, Lingqi Yue, Wei Liu, Hongyi Qin, Bingfu Lei, Riming Huang, Xian Yang, Yunyan Kang
Summary: In this study, eight Put genes were identified in tomato, which were distributed on four chromosomes and classified into three groups. The Put genes showed similarity in protein domains and gene structure. They were induced by various hormones and polyamines and expressed in all tomato tissues. Most of the Put genes were induced by abiotic stresses. Put2 was found to be responsive to salt stress and overexpression of Put2 in yeast and tomatoes conferred salinity tolerance by enhancing polyamine uptake and antioxidant capacity. The findings suggest that Put2 plays a crucial role in polyamine metabolism and antioxidant defense in tomatoes, providing a valuable gene for salinity tolerance in plants.
Article
Genetics & Heredity
Honghong Dong, Ruixiang Gao, Yijie Dong, Qing Yao, Honghui Zhu
Summary: This study presented the high-quality genome assembly of Myxococcus xanthus R31, a strain with good biocontrol efficacy against tomato bacterial wilt. Comparative genomics analysis revealed the phylogenetic relationship between R31 and other M. xanthus strains, and identified strain-specific genes that may contribute to its predatory ability. These findings provide new insights into R31 and related species, and lay the foundation for further genetic studies on the predation mechanism of myxobacteria.
Article
Chemistry, Physical
Wencan Hu, Kailong He, Siman Wu, Tianran Chen, Xiaoyuan Yu, Yeru Liang, Mingtao Zheng, Yong Xiao, Hanwu Dong, Yingliang Liu, Hang Hu
Summary: In this study, a novel ordered sandwich-structured nanocomposite consisting of Fe3O4, silicon quantum dots (Si-QDs), and reduced graphene oxide (rGO) is synthesized. Si-QDs play a vital role in guiding the uniform formation and distribution of nano-sized Fe3O4 on rGO nanosheets. The resulting Si-QDs/Fe3O4/rGO composite exhibits high specific capacity, excellent cycling stability, and rate capability. This work provides insights into the effect of Si-QDs on the morphology, structure, and electrochemical performances of the composite.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Kaixin Lu, Yi Zhong, Yongyin Wang, Mingtao Zheng, Hang Hu, Yong Xiao, Yingliang Liu, Yeru Liang
Summary: A degradable network copolymer solid electrolyte with high ionic conductivity and fast degradable properties was designed and prepared for solid-state lithium batteries. The experimental results demonstrated that the copolymeric network structure enhanced lithium-ion transport and facilitated the whole decomposition of the solid electrolyte. The solid electrolyte showed remarkable electrochemical and degradable performances, making it a promising candidate for sustainable and efficient solid-state lithium batteries.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Qingyuan Cen, Hong Xu, Junyu Chen, Shili Zhao, Wei Li, Mingtao Zheng, Jing Xiang, Lianxiang Luo, Fengqiong Chen, Haoran Zhang, Shiwei Chen, Bingfu Lei
Summary: In this study, a biomass CD material was prepared, which significantly enhanced the photosynthetic capacity and resistance of plants, and promoted the growth status of both lettuce and fruit trees. The material also demonstrated good biosafety, indicating its potential for promoting the application of CDs in agriculture.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Fangmei Fu, Mengru Xu, Zishan Liang, Sirui Huang, Hui Li, Haoran Zhang, Wei Li, Mingtao Zheng, Bingfu Lei
Summary: In this study, carbon dots (CDs) with gradually red-shifted fluorescence were synthesized by adjusting the pH values of the reaction system using o-phenylenediamine and dopamine hydrochloride as precursors. The pH adjustment led to enhanced carbonization and cross-linking, resulting in increased sp(2) conjugate domain size and graphitization, which caused the fluorescence red-shift of CDs. Furthermore, the acidic environment favored the formation of carboxyl groups on the CDs surface, promoting the fluorescence red-shift and improving the quantum efficiency. Additionally, CDs-1 was found to have high quantum efficiency (14.8%) and solvent-dependent luminescence, making it a promising fluorescent probe for trace water detection in various solvents.
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
(2023)
Article
Materials Science, Biomaterials
Jieqiang Tan, Shili Zhao, Junyu Chen, Xiaoqin Pan, Chen Li, Yingliang Liu, Caijuan Wu, Wei Li, Mingtao Zheng
Summary: Nanotechnology is an effective way to stimulate crop yield potential, and nitrogen-doped carbon dots have significant promotive effects on lettuce biomass and quality, improving photosynthesis and nitrogen metabolism.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Materials Science, Multidisciplinary
Shixin Wu, Chaowei Yang, Jiechun Zhuang, Jiahao Chen, Wei Li, Yingliang Liu, Mingtao Zheng, Xuejie Zhang, Bingfu Lei, Yuxia Guo, Haoran Zhang
Summary: In this study, a nanocomposite material pCDs@m-UiO-66, consisting of red carbon dots and mesoporous metal-organic frameworks, was successfully synthesized. The pCDs@m-UiO-66 showed high stability and solid-state luminescence, with its emission properties meeting the light requirements for plant growth. Cultivation experiments demonstrated that FR-LED plant lighting lamps prepared using this far-red emitting phosphor significantly increased the biomass of Italian lettuce and drench beet seedlings.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Junyu Chen, Gui Chen, Caijuan Wu, Bingfu Lei, Yingliang Liu, Mingtao Zheng
Summary: By introducing lignin carbon dots into polymers, we have successfully prepared hydrogels with enhanced mechanical properties and excellent optical properties. The hydrogels exhibit high tensile and compressive strength, as well as a high extension ratio, and can be used for self-visualization of dehydration and applications such as chemical sensing and information encryption.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Biomaterials
Qingyuan Cen, Fangmei Fu, Hong Xu, Lianxiang Luo, Fanfan Huang, Jing Xiang, Wei Li, Xiaoqin Pan, Haoran Zhang, Mingtao Zheng, Yinjian Zheng, Qingming Li, Bingfu Lei
Summary: In this study, the addition of glycine as an auxiliary agent in the preparation of carbon dots (CDs) from herbal medicine was found to significantly increase the yield of CDs and enhance their antioxidant and biological activities. The influence of amino groups in the auxiliary agent on the synthesis of CDs was greater than that of carboxyl groups. The study provides a potential strategy for high-yield preparation of CDs from biomass.
JOURNAL OF MATERIALS CHEMISTRY B
(2022)
Article
Materials Science, Multidisciplinary
Tianlai Wu, Weicai Zhang, Jiawen Cai, Mingtao Zheng, Hang Hu, Xiaoyuan Yu, Dan Shao, Yong Xiao, Yingliang Liu, Yeru Liang
Summary: This study investigates the role of SiO2 as a protective layer for realizing uniform Li-ion deposition. The results show that the SiO2 protective layer acts as a facilitator for Li ion transfer and a lithiophilic site for Li nucleation, leading to homogeneous Li nucleation/growth and inhibition of dendrite formation. The protected Li metal exhibits impressive long cycling stability and extended cycling life when coupled with a cathode.
MATERIALS ADVANCES
(2022)
Article
Nanoscience & Nanotechnology
Fangmei Fu, Xiaoqin Pan, Riming Huang, Lianxiang Luo, Fanfan Huang, Wei Li, Haoran Zhang, Mingtao Zheng, Bingfu Lei
Summary: This study discovered the presence of immunoregulatory carbon dots (CDs) in herbal tea, which exhibited stronger immunoregulatory function compared to the original herbal tea. These findings provide a direction for the application of phenolic hydroxyl-modified CDs in the biomedical field.
ACS APPLIED BIO MATERIALS
(2022)