剥脱关节
纳米片
光热治疗
二硫化钼
纳米载体
材料科学
纳米技术
纳米材料
单层
光热效应
过渡金属
石墨烯
纳米颗粒
化学
催化作用
有机化学
冶金
作者
Chao Zhang,Dengfeng Hu,Jiancai Xu,Mingfang Ma,Huabin Xing,Ke Yao,Jian Ji,Zuhua Xu
出处
期刊:ACS Nano
[American Chemical Society]
日期:2018-12-03
卷期号:12 (12): 12347-12356
被引量:147
标识
DOI:10.1021/acsnano.8b06321
摘要
Transition metal dichalcogenide (TMD) nanosheets have evoked enormous research enthusiasm and have shown increased potentials in the biomedical field. However, a great challenge lies in high-throughput, large-scale, and eco-friendly preparation of TMD nanosheet dispersions with high quality. Herein, we report a universal polyphenol-assisted strategy to facilely exfoliate various TMDs into monolayer or few-layer nanosheets. By optimizing the exfoliation condition of molybdenum disulfide (MoS2), the yield and concentration of as-exfoliated nanosheets are up to 60.5% and 1.21 mg/mL, respectively. This is the most efficient aqueous exfoliation method at present and is versatile for the choices of polyphenols and TMD nanomaterials. The as-exfoliated MoS2 nanosheets possess superior biomedical stability as nanocarriers to load antibiotic drugs. They show a high photothermal conversion effect and thus induce a synergetic effect of chemotherapy and photothermal therapy to harvest enhanced antibiofilm activity under near-infrared (NIR) light. All these results offer an appealing strategy toward the synthesis and application of ultrathin TMD nanosheets, with great implications for their development.
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