Undergraduate Laboratory. Experiment Modules for Probing Gold Nanoparticle Interfacial Phenomena
Undergraduate Laboratory. Experiment Modules for Probing Gold Nanoparticle Interfacial Phenomena
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DOI：
10.1021/acs.jchemed.5b00535
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发表时间：
2015-11-01
影响因子：
3
通讯作者：
Zhang, Dongmao
中科院分区：
文献类型：
--
作者：
Karunanayake, Akila G.;Gunatilake, Sameera R.;Zhang, Dongmao
三个金纳米粒子（AuNP）的本科实验模块，专注于纳米粒子的界面现象已经开发。模块1和2探索不同尺寸但具有相同总金质量的AuNP的合成和表征。这些实验使学生能够确定颗粒大小如何影响AuNP的光学特性和配体结合能力。模块3研究了控制有机硫醇自组装到AuNP上的基本机制，并探索了AuNP表面上有机硫醇的硫键合氢（RS-H）的命运。需要台式离心机、紫外可见分光光度计和pH试纸。所需的化学知识的深度是适合高层次的化学学生。
Three gold-nanoparticle (AuNP) undergraduate experiment modules that are focused on nanoparticles interfacial phenomena have been developed. Modules 1 and 2 explore the synthesis and characterization of AuNPs of different sizes but with the same total gold mass. These experiments enable students to determine how particle size affects the AuNP optical properties and ligand binding capacities. Module 3 investigates the fundamental mechanism governing organothiol self-assembly onto AuNPs and explores the fate of the sulfur-bounded hydrogen (RS-H) for organothiols on the AuNP surface. A benchtop centrifuge, a UV-vis spectrophotometer, and pH strips are needed. The depth of required chemistry knowledge is appropriate for upper-level chemistry students.