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二硫化钼纳米片基纳米团簇的制备及其在近红外激光的热转换性能

Fabrication of MoS2 Nanosheet-Based Nanocluster and Thermal Conversion Performance Under Near-Infrared Laser

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摘要

探讨了γ-聚谷氨酸(γ-PGA)介导合成γ-PGA/二硫化钼(MoS2)纳米团簇的可行性, 分析了γ-PGA/MoS2纳米团簇在近红外激光的热转换性能。将γ-PGA和合成MoS2纳米片的前驱体四硫代钼酸铵同时溶解于蒸馏水中, 通过水热法自下而上一步合成出了γ-PGA修饰的MoS2纳米团簇,MoS2纳米团簇的直径为(197.3±26.6) nm。团簇结构的形成可能与Mo4+离子和γ-PGA链中羧基上氧原子的配位作用有关。在水热反应过程中, 由于这种配位作用的存在, 生成的MoS2纳米片可能进一步以γ-PGA分子链中氧原子为中心形成团簇。该纳米团簇具有优异的胶体稳定性、光热转换性能(质量消光系数为11.23 L·g-1·cm-1)和细胞相容性, 有望在肿瘤的光热治疗等领域得到应用。

Abstract

The feasibility of γ-PGA/MoS2 nanocluster synthesized with the assistance of γ-poly glutamic acid (γ-PGA) is discussed. Thermal conversion performance of γ-PGA/MoS2 nanocluster under near-infrared laser is analyzed. γ-PGA and (NH4)2MoS4 which is the precursor of MoS2 nanosheet are dissolved into distilled water, and γ-PGA modified MoS2 nanocluster is synthesized from bottom to top with hydrothermal method. The diameter of nanocluster is (197.3±26.6) nm. Nanocluster configuration may be relevant to the coordination between Mo4+ ion and oxygen atom belonging to the carboxyl group of γ-PGA. During the hydrothermal reaction process, generated MoS2 nanosheets may form clusters due to the existence of coordination, and the oxygen atoms in γ-PGA molecular chain are the center. Nanoclusters show excellent colloidal stability, photothermal conversion performance (with mass extinction coefficient of 11.23 L·g-1·cm-1) and admirable cytocompatibility, and they are expected to be applied to the field of photothermal therapy for tumor.

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中图分类号:O614

DOI:10.3788/cjl201744.0703016

所属栏目:“二维光电材料与器件”专题

基金项目:上海市地方高校能力资源建设项目(14440502300)、上海市晨光计划(15CG52)、上海市青年科技英才扬帆计划(17YF1412600)、上海高校青年教师培养资助(slg16054)

收稿日期:2017-01-22

修改稿日期:2017-02-19

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胡飞:上海理工大学理学院, 上海 200093
赵九龙:中国人民解放军第二军医大学附属长海医院, 上海 200433
吴媛媛:上海理工大学理学院, 上海 200093
马红彦:上海理工大学理学院, 上海 200093
王世革:上海理工大学理学院, 上海 200093
黄明贤:上海理工大学理学院, 上海 200093

联系人作者:胡飞(hufeiusst@foxmail.com)

备注:胡飞(1993-), 男, 硕士研究生, 主要从事纳米材料的制备方面的研究。

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引用该论文

Hu Fei,Zhao Jiulong,Wu Yuanyuan,Ma Hongyan,Wang Shige,Huang Mingxian. Fabrication of MoS2 Nanosheet-Based Nanocluster and Thermal Conversion Performance Under Near-Infrared Laser[J]. Chinese Journal of Lasers, 2017, 44(7): 0703016

胡飞,赵九龙,吴媛媛,马红彦,王世革,黄明贤. 二硫化钼纳米片基纳米团簇的制备及其在近红外激光的热转换性能[J]. 中国激光, 2017, 44(7): 0703016

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