Spectroscopic Study of 2-Thiobarbituric Acid Modified Gold Nanoparticles
Gold nanoparticles with a 13 nm diameter were synthesized and modified by a pH-sensitive, ionizable thiols acid, 2-thiobarbituric acid (TBA). After modification, the maximum absorbance wavelength shifted from 520 to 524 nm. Several effects were also investigated, including the pH, the salt and the metal ions effects.
J. Du and Z. N. Xia, "Spectroscopic Study of 2-Thiobarbituric Acid Modified Gold Nanoparticles", Materials Science Forum, Vol. 694, pp. 244-248, 2011