000			02371nam a22001937a 4500
005			20240116155349.0
008			240116b ||||| |||| 00| 0 eng d
022			_a0021-9584
100			_aQuinson, Jonathan
245			_aRoom Temperature Surfactant-Free Syntheses of Gold Nanoparticles in Alkaline Mixtures of Water and Alcohols _b: A Model System to Introduce Nanotechnology and Green Chemistry to Future Chemists and Engineers (Journal Article)
260			_aWashington DC _b: American Chemical Society _c, 2023
300			_a3612–3619p.
440			_aJournal of Chemical Society _v, Volume 100: Number 9, September 2023
505			_a***______{For Hard Copy, Please visit Library.}________***
520			_aAbstract: Gold nanoparticles (AuNPs) are textbook model systems to introduce Nanomaterials and Nanotechnology to students and laypersons. AuNPs are also suitable materials to raise awareness about the Green Chemistry principles. The unique optical and catalytic properties of nanosized gold make it ideal to timely develop hands-on experiments for nanomaterial synthesis requiring only few chemicals and simple equipment, such as a UV–vis spectrophotometer. While the Turkevich–Frens synthesis has been a preferred model system to date due to its simplicity, it still requires access to specific equipment and chemicals, e.g., to heat up the solution at relatively high temperature of ca. 100 °C. Various room temperature syntheses have been reported but suffer from relatively poor size control and/or the need for relatively harmful chemicals such as NaBH4. In contrast, room temperature and surfactant-free syntheses that only require HAuCl4, water, an alcohol, such as ethanol, ethylene glycol, or glycerol, and a base at relatively low concentration (<10 mM) are presented and their benefits to develop hands-on experiments are highlighted. The concepts that these simple syntheses can convey cover topics as broad as Nanotechnology, planning experimental screening of multiple variables, collaborative and open data science, or Green Chemistry.
650			_aGeneral Public| Demonstrations| Inorganic Chemistry| Laboratory Instruction| Hands-on Learning| Alcohols| Aqueous Solution Chemistry| Colloids| Green Chemistry| Nanotechnology| Synthesis| Spectroscopy
856			_uhttps://doi.org/10.1021/acs.jchemed.3c00492
942			_cPER
999			_c45295 _d45294