Article
Chemistry, Physical
Jiasheng Chen, Xuan Liang Wang, En Mei Jin, Sang Mun Jeong
Summary: To restrict volume expansion during charge-discharge processes in lithium-ion batteries, FeOx nanoparticles were coated with carbon using a spray solidification method. The carbon coating effectively suppressed volume expansion and improved electrical conductivity. FeOx/4C nanoparticles with optimum carbon coating content demonstrated outstanding electrochemical performance, exhibiting high discharge capacities and reversible capacity after cycling. This synthesis method provides a facile route for large-scale production of nanoparticles as electrode materials for lithium-ion batteries.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Rong Tan, Xiong Yang, Haojian Lu, Liu Yang, Tieshan Zhang, Jiaqi Miao, Yu Feng, Yajing Shen
Summary: This study presents a degradable millirobot based on nanofibers that can work in the alimentary tract. The robot can programmatically release different drugs in response to variations in acidic physiological concentrations. The multi-legged design allows effective locomotion in harsh in-body environments. In a rabbit model, the robot demonstrated locomotion abilities, desired-region anchoring, and stepwise drug release.
Article
Chemistry, Physical
Meng Yu, Liuyang Sun, Xiaohui Ning
Summary: By fabricating carbon-coated Fe3O4 nanorings (R-Fe3O4@C), the severe volume change and inferior electronic conductivity issues of Fe3O4 are addressed, resulting in superior electrochemical performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Yujie Liu, Mingzhu Xiao, Shilong Liu, Xiaoxi Zhao, Yong Tian, Xiufang Wang
Summary: This study successfully fabricated novel mesoporous carbon nanoparticles (MCNs) with defined architecture, small particle diameter, and large mesopore size. An extended swelling penetration mechanism was proposed to explain their formation and transformation. These MCNs showed multifunctional properties, serving as a fluorescent probe for detecting mutated nucleic acids and as a medical carrier in drug delivery systems, with promising applications in biosensors and biomedicine.
Article
Chemistry, Multidisciplinary
Liliana P. Ferreira, Cesar P. Reis, Tiago T. Robalo, M. E. Melo Jorge, Paula Ferreira, Joana Goncalves, Abdollah Hajalilou, Maria Margarida Cruz
Summary: Magnetite nanoparticles were synthesized using gelatin, agar-agar, or pectin as additives, achieving a higher reproducibility of the particle morphology and magnetic characteristics.
Article
Polymer Science
Suguna Perumal, Raji Atchudan, Yong Rok Lee
Summary: Research on the synthesis of water-soluble polymers has gained attention. In this study, poly[2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide (PSB) was successfully synthesized via free radical polymerization in a sonication bath, and simultaneously stabilized on the graphene surface with the addition of iron oxide nanoparticles (IONPs). The hydrophobic nature of graphene surfaces was converted to hydrophilic nature due to the inclusion of PSB and IONPs, resulting in well-dispersed graphene composites, GPSB and GPSBI, in water.
Article
Multidisciplinary Sciences
Makhosazana Masuku, Linda Ouma, Saheed Sanni, Agnes Pholosi
Summary: In this study, the modeling and optimization of the preparation factors for magnetite coated oleic acid composite were conducted to maximize BTX removal and iron content. The results showed that the volume of oleic acid and volume of ammonia water were the most influential factors for high iron content and improved BTX removal. The MNP-OA composite at optimized experimental conditions showed high iron content and excellent adsorption capacity for BTX.
SCIENTIFIC REPORTS
(2022)
Article
Energy & Fuels
Murilo Alexandreli, Cesar B. Brocchi, Davi Marcelo Soares, Willian G. Nunes, Bruno G. Freitas, Francisca E. R. de Oliveira, Luiz Eduardo Camargo Aranha Schiavo, Alfredo C. Peterlevitz, Leonardo M. da Silva, Hudson Zanin
Summary: Transition metal oxides are favored as high-energy-density electrode materials for supercapacitors due to the pseudocapacitive charge storage mechanism. A binder-free electrode composed of iron oxide nanoparticles supported on multi-walled carbon nanofibers exhibited high specific pseudocapacitance and good cyclability. The charge storage mechanism involving the Fe(II)/Fe(III) redox couple was responsible for the reversible solid-state redox reactions in the iron oxide electrodes.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Multidisciplinary
Yong Kang, Zhengjun Li, Fengying Lu, Zhiguo Su, Xiaoyuan Ji, Songping Zhang
Summary: A red/black phosphorus composite nanosheet, M-RP/BP@ZnFe2O4, was synthesized to address the stability and efficiency issues of black phosphorus nanosheets in cancer photonic therapy. The composite nanosheets exhibited high performance in cancer phototherapy with features including Z-scheme heterojunction structure, capability to break tumor microenvironment, water decomposition to produce toxic compounds, improved targeting with cell membrane wrapping, and triggering of photonic therapy with a specific laser wavelength.
Article
Energy & Fuels
Yibo Liu, Xinyu Liu, Yuanlong Zhu, Jiawei Wang, Weiwei Ji, Xizheng Liu
Summary: In this study, Si/graphite composites with high capacity and conductivity were prepared using a simplified chemical dealloying and pitch coating process. The composite showed excellent cyclic stability and high energy density, making it a promising anode material for next-generation LIBs.
Article
Chemistry, Multidisciplinary
Panpan Chen, Gaoyang Wang, Changlong Hao, Wei Ma, Liguang Xu, Hua Kuang, Chuanlai Xu, Maozhong Sun
Summary: Chiral gold nano-bipyramids with sea cucumber-like morphology were reported to combat bacterial infections effectively. The results showed that these chiral GBPs could efficiently destroy bacteria, exhibiting wound healing promotion and sepsis prevention in both in vitro and in vivo experiments.
Review
Chemistry, Analytical
Yuliya A. Podkolodnaya, Alina A. Kokorina, Tatiana S. Ponomaryova, Olga A. Goryacheva, Daniil D. Drozd, Mikhail S. Khitrov, Lingting Huang, Zhichao Yu, Dianping Tang, Irina Yu. Goryacheva
Summary: Luminescent carbon nanostructures (CNSs) have attracted attention due to their photoluminescent properties, structural features, low toxicity, and various applications. The application of a silica matrix reduces the challenges in separating CNSs and improves their optical properties. In addition, multifunctional particles combining CNSs with other nanoparticles show promise in diverse fields.
Review
Chemistry, Multidisciplinary
Guoli Chen, Rengui Li, Lei Huang
Summary: Photochemical deposition has gained increasing attention as a method for preparing nano-catalysts due to its mild reaction conditions, simplicity, green and safe characteristics, and potential for various applications. This review provides an overview of recent advances in photochemical deposition methods for fabricating heterogeneous catalysts, with a focus on the factors influencing the nucleation and growth of metal nanoparticles. The control of photogenerated charges and triggered photochemical reactions has been shown to be significant in the deposition process.
Article
Chemistry, Analytical
Ying Zhou, Min Ding, Wenjing Lyu, Qianna Zhen, Hong Chen, Mengdan Jiang, Yanxiang Ding, Xiaoqing Zhang
Summary: A sensitive electrochemical method was established for the determination of indole concentration using screen-printed carbon electrode modified with gold/iron-oxide nanoparticles. The method showed a wide linear range for indole detection and a low limit of detection, demonstrating promising prospects for indole detection in conventional laboratories.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Physical
Qiao Zhang, Chaoyang Shi, Enze Zhu, Weiping Liu, Kun Liu, Yuhui Li, Wei Li, Xikun Yang, Juan Yu, Mingli Xu
Summary: A novel and high-efficiency Pd/TMxOy-rGO/CFP electrocatalyst was synthesized for methanol oxidation reduction, with Pd/Co3O4-rGO/CFP showing the best electrocatalytic activity among them. The small size of Pd nanoparticle and synergistic interaction with transition metal oxide contribute to its excellent performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
