Pyrene-Assisted Synthesis of Size-Controlled Gold Nanoparticles in Sodium Dodecyl Sulfate Micelles

Autor:	Chunhung Wu, Chung-Yuan Mou, Jin-Pei Deng, Cheng-His Yang
Rok vydání:	2005
Předmět:	Aqueous solution Inorganic chemistry Dispersity Nanoparticle Surfaces and Interfaces Condensed Matter Physics Micelle Micellar electrokinetic chromatography chemistry.chemical_compound chemistry Colloidal gold Electrochemistry Pyrene General Materials Science Sodium dodecyl sulfate Spectroscopy
Zdroj:	Langmuir. 21:8947-8951
ISSN:	1520-5827 0743-7463
DOI:	10.1021/la051252m
Popis:	Gold nanoparticles prepared by chemical reduction in sodium dodecyl sulfate (SDS) solution are size-controlled with the addition of pyrene. Micellar electrokinetic capillary chromatography (MEKC) is applied to the system to examine the size and polydispersity of gold nanoparticles and to show that pyrene has the extraordinary effect in decreasing the size and narrowing the dispersity of gold nanoparticles. The MEKC electropherograms further suggest that pyrene could be oxidized by the aqueous Au(III) complexes first. All the reduced Au complexes were then solubilized in the pyrene-SDS micelles. The growth of gold nanoparticles beyond the embryonic stage was subsequently inhibited by the encapsulating SDS and electrophilic pyrene.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5267aac0f47367cc298dac74da5553b2 https://doi.org/10.1021/la051252m Zobrazit plný text záznamu