二维过渡金属硫化物合金纳米片的带隙调控及近红外II区光热性能研究
结题报告
批准号:
22005259
项目类别:
青年科学基金项目
资助金额:
24.0 万元
负责人:
谭超良
学科分类:
无机功能材料化学
结题年份:
2023
批准年份:
2020
项目状态:
已结题
项目参与者:
谭超良
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中文摘要
近年来,单层或寡层的二维过渡金属硫族化合物纳米材料在生物检测、肿瘤治疗、生物成像和药物释放等生物医学领域受到极大关注,然而近红外II区消光系数低、光热转化效率差、材料尺寸过大等严重阻碍其推广应用。本项目拟通过微波等离子体加热固相合成法,快速合成三种二维硫化物合金晶体粉末材料(MxZr1-xS2: M=Ti、Ta、Nb),利用锂插层技术剥离晶体粉末,实现从元素单质、粉末单晶到液相单层纳米片的带隙调控及可控宏量制备。研究不同金属合金纳米片的带隙调控和结构对材料在近红外II区消光系数、光热转化效率和光热稳定性的影响规律,建立过渡金属合金纳米片的带隙、结构与光热性能之间的构效关系。通过表面高分子改性,系统研究改性后纳米片的生物毒性和光热性能,遴选出光热转换性能优异、生物相容性良好的二维硫化物合金纳米片,为光热纳米材料的可控制备、性能调控和生物医学应用提供实验基础和理论指导。
英文摘要
Single- or few-layered two-dimensional (2D) transition metal dichalcogenide (TMD) nanomaterials have attracted considerable attention in biomedical applications like biological detection, cancer therapy, bioimaging, drug release, etc. in recent years, but their further application is limited by the low extinction coefficient and poor photothermal conversion efficiency at near-infrared II widow as well as large lateral size. This project uses microwave-induced plasma-assisted synthesis method for the rapid synthesis of three kinds of alloyed TMD crystalline powders (MxZr1-xS2: M=Ti, Ta, Nb), which are then exfoliated into single-layered nanosheets by the lithium intercalation method, achieving the bandgap engineering and controlled large-scale preparation from elementary powders and crystalline powders to solution-processed single-layered nanosheets. By exploring the influence of bandgap and structure on the near infrared II extinction coefficient, photothermal conversion efficiency and photothermal stability, the correlation between the bandgap/structure and photothermal performance of alloyed TMD nanosheets can be established. After surface polymer modification, we systematically study the biotoxicity and photothermal performance polymer-modified nanosheets and then select 2D alloyed TMD nanosheets with excellent photothermal conversion performance and good biocompatibility, providing experimental foundation and theoretical guidance to the controlled preparation, performance optimization and biomedical applications of photothermal nanomaterials.
期刊论文列表
专著列表
科研奖励列表
会议论文列表
专利列表
Silver Nanoparticle-Modified 2D MOF Nanosheets for Photothermally Enhanced Silver Ion Release Antibacterial Treatment
银纳米颗粒改性 2D MOF 纳米片用于光热增强银离子释放抗菌处理
DOI:10.3866/pku.whxb202211043
发表时间:2023
期刊:Acta Physico Chimica Sinica
影响因子:--
作者:Xinshuo Zhao;Haiyan Qiu;Yi;Panjie Wang;Shilong Yu;Hai Li;Yubin Zhou;Zhan Zhou;Lufang Ma;Chaoliang Tan
通讯作者:Chaoliang Tan
Intercalation-Activated Layered MoO3 Nanobelts as Biodegradable Nanozymes for Tumor-Specific Photo-Enhanced Catalytic Therapy.
插层激活的层状 MoO3 纳米带作为可生物降解的纳米酶,用于肿瘤特异性光增强催化治疗。
DOI:10.1002/anie.202115939
发表时间:2022-01
期刊:Angewandte Chemie
影响因子:--
作者:Zhan Zhou;Yanlong Wang;Feng Peng;Fanqi Meng;Jiajia Zha;Lu Ma;Yonghua Du;Na Peng;Lufang Ma;Qinghua Zhang;Lin Gu;Wenyan Yin;Zhanjun Gu;Chaoliang Tan
通讯作者:Chaoliang Tan
DOI:10.1002/smll.202007486
发表时间:2021-02
期刊:Small
影响因子:13.3
作者:Zhan Zhou;Xianwen Wang;Hui Zhang;Haoxin Huang;Lina Sun;Lufang Ma;Yonghua Du;Chengjie Pei
通讯作者:Zhan Zhou;Xianwen Wang;Hui Zhang;Haoxin Huang;Lina Sun;Lufang Ma;Yonghua Du;Chengjie Pei
DOI:10.1038/s41467-022-31106-9
发表时间:2022-06-13
期刊:Nature communications
影响因子:16.6
作者:
通讯作者:
DOI:10.1002/adhm.202202911
发表时间:2023-01-15
期刊:ADVANCED HEALTHCARE MATERIALS
影响因子:10
作者:Hu, Tingting;Xue, Baoli;Tan, Chaoliang
通讯作者:Tan, Chaoliang
国内基金
海外基金