2, 4, 6-Trithiol-1, 3, 5-Triazine-Modified Gold Nanoparticles and Its Potential as Formalin Detector

12th Joint Conference on Chemistry

Yulizar, Y.^1 ; Ariyanta, H.A.^2 ; Rakhmania, L.^1 ; Hafizah, M.A.E.^3

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Kampus UI Depok

16424, Indonesia^1

Department of Pharmacy, Faculty of Pharmacy, Universitas Gunadarma, Kampus UG Depok

16424, Indonesia^2

Postgraduate Program of Material Science, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Jakarta

10430, Indonesia^3

关键词: Aromatic rings;    Nitrogen atom;    Particle diameters;    Particle size analyzers;    Protonated;    Thiol groups;    UV-Vis spectrophotometers;    Wavelength shift;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/349/1/012072/pdf
DOI  :  10.1088/1757-899X/349/1/012072

来源: IOP

【 摘 要 】

Stabilized gold nanoparticles (AuNP) have been successfully prepared by a modification of ligand 2, 4, 6-trithiol-1, 3, 5-triazine (TT). TT has three thiol groups and nitrogen atoms on the aromatic ring that can interact and stabilize AuNP. TT modified AuNP (AuNP/TT) was characterized using UV-Vis spectrophotometer, particle size analyzer (PSA) and transmission electron microscopy (TEM). The characterization showed that AuNP/TT stable at a maximum wavelength (λmaks) of 537 nm with the particle diameter of 9.41 nm. The increased acidity (pH) causes the protonated thiol groups of TT marked with a visual change of colloidal AuNP/TT from purple to blue, causing AuNP and TT bonds weakened. In this study, the AuNP/TT was reacted with formalin. This interaction shows that AuNP/TT has a potential as an efficient detector of formalin, marked by changes in the diameter of the particle, colloidal color, and maximum wavelength shift.