Ren Y, Zhou H, Wang X, Liu Q W, Hou X D, Zhang G F
Henan University of Technology, School of Materials Science and Engineering, Engineering Laboratory of High Temperature Resistance-Wear Materials, Zhengzhou 450007, China.
Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Ministry of Education), School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116024 Liaoning Province, China.
Stem Cells Int. 2021 Aug 28;2021:7067146. doi: 10.1155/2021/7067146. eCollection 2021.
ZnS materials have been widely used in fluorescence biosensors to characterize different types of stem cells due to their excellent fluorescence effect. In this study, ZnS was prepared by vulcanizing nano-Zn particles synthesized using a DC arc plasma. The composition and structure of the ZnS materials were studied by X-ray diffraction (XRD), and their functional group information and optical properties were investigated by using IR spectrophotometry and UV-vis spectrophotometry. It has been found that the synthesized materials consist of Zn, cubic ZnS, and hexagonal ZnS according to the vulcanization parameters. Crystalline ZnS was gradually transformed from a cubic to a hexagonal structure, and the cycling properties first increase, then decrease with increasing sulfurization temperature. There is an optimal curing temperature giving the best cycling performance and specific capacity: the material sulfurized thereat mainly consists of cubic -ZnS phase with a small quantity of Zn and hexagonal -ZnS. The cubic phase ZnS has better conductivity than hexagonal ZnS, as evinced by electrochemical impedance spectroscopy (EIS). The ZnS (as prepared) shows board absorption, which can be used in fluorescence biosensors in cell imaging systems.
由于具有出色的荧光效应，硫化锌（ZnS）材料已广泛应用于荧光生物传感器中，用于表征不同类型的干细胞。在本研究中，通过硫化利用直流电弧等离子体合成的纳米锌颗粒制备了ZnS。通过X射线衍射（XRD）研究了ZnS材料的组成和结构，并使用红外分光光度法和紫外可见分光光度法研究了它们的官能团信息和光学性质。研究发现，根据硫化参数，合成材料由锌、立方ZnS和六方ZnS组成。结晶ZnS逐渐从立方结构转变为六方结构，并且随着硫化温度的升高，循环性能先增加后降低。存在一个最佳固化温度，可提供最佳的循环性能和比容量：在此温度下硫化的材料主要由少量锌和六方-ZnS的立方-ZnS相组成。如电化学阻抗谱（EIS）所示，立方相ZnS比六方ZnS具有更好的导电性。制备的ZnS表现出宽吸收，可用于细胞成像系统中的荧光生物传感器。
