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Synthesis, size control and fluorescence studies of gold nanoparticles in carboxymethylated chitosan aqueous solutions.
J Colloid Interface Sci. 2007 Dec 15; 316(2):398-404.JC

Abstract

A facile ultraviolet (UV) light irradiation method to synthesize gold nanoparticles (AuNPs) in the alkalic carboxymethylated chitosan (CM-chitosan) solution was first proposed in this paper. CM-chitosan, a water soluble polysaccharide derivative, served as both reducing agent for gold cations and stabilizing agent for AuNPs. The pH, the concentration of HAuCl(4) and irradiation time had obvious influence on the size, amount and morphology of AuNPs, which traced by UV-visible spectrometer and high resolution transmission electron microscopy. AuNPs synthesized in this method can be dispersed stably in alkalic CM-chitosan solution for more than 6 months. The possible stability mechanism of AuNPs was discussed based on the change of carboxyl group of CM-chitosan chain with pH and FTIR analyses. XRD pattern confirmed the cubic crystal structure of AuNPs. The fluorescence emission band of AuNPs with an excitation wavelength of 316 nm can be observed at 400 nm, which was affected remarkably by irradiation time and concentration of HAuCl(4).

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Authors+Show Affiliations

Huang L
Beijing National Laboratory for Molecular Sciences, Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
Zhai M
No affiliation info available
Peng J
No affiliation info available
Xu L
No affiliation info available
Li J
No affiliation info available
Wei G
No affiliation info available

MeSH

ChitosanGoldHydrogen-Ion ConcentrationMethylationMicroscopy, FluorescenceNanoparticlesParticle SizeSolutionsSpectroscopy, Fourier Transform InfraredSurface PropertiesUltraviolet RaysWaterX-Ray Diffraction

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17707389

Citation

Huang, Ling, et al. "Synthesis, Size Control and Fluorescence Studies of Gold Nanoparticles in Carboxymethylated Chitosan Aqueous Solutions." Journal of Colloid and Interface Science, vol. 316, no. 2, 2007, pp. 398-404.
Huang L, Zhai M, Peng J, et al. Synthesis, size control and fluorescence studies of gold nanoparticles in carboxymethylated chitosan aqueous solutions. J Colloid Interface Sci. 2007;316(2):398-404.
Huang, L., Zhai, M., Peng, J., Xu, L., Li, J., & Wei, G. (2007). Synthesis, size control and fluorescence studies of gold nanoparticles in carboxymethylated chitosan aqueous solutions. Journal of Colloid and Interface Science, 316(2), 398-404.
Huang L, et al. Synthesis, Size Control and Fluorescence Studies of Gold Nanoparticles in Carboxymethylated Chitosan Aqueous Solutions. J Colloid Interface Sci. 2007 Dec 15;316(2):398-404. PubMed PMID: 17707389.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Synthesis, size control and fluorescence studies of gold nanoparticles in carboxymethylated chitosan aqueous solutions. AU - Huang,Ling, AU - Zhai,Maolin, AU - Peng,Jing, AU - Xu,Ling, AU - Li,Jiuqiang, AU - Wei,Genshuan, Y1 - 2007/07/26/ PY - 2007/05/14/received PY - 2007/07/04/revised PY - 2007/07/19/accepted PY - 2007/8/21/pubmed PY - 2008/1/12/medline PY - 2007/8/21/entrez SP - 398 EP - 404 JF - Journal of colloid and interface science JO - J Colloid Interface Sci VL - 316 IS - 2 N2 - A facile ultraviolet (UV) light irradiation method to synthesize gold nanoparticles (AuNPs) in the alkalic carboxymethylated chitosan (CM-chitosan) solution was first proposed in this paper. CM-chitosan, a water soluble polysaccharide derivative, served as both reducing agent for gold cations and stabilizing agent for AuNPs. The pH, the concentration of HAuCl(4) and irradiation time had obvious influence on the size, amount and morphology of AuNPs, which traced by UV-visible spectrometer and high resolution transmission electron microscopy. AuNPs synthesized in this method can be dispersed stably in alkalic CM-chitosan solution for more than 6 months. The possible stability mechanism of AuNPs was discussed based on the change of carboxyl group of CM-chitosan chain with pH and FTIR analyses. XRD pattern confirmed the cubic crystal structure of AuNPs. The fluorescence emission band of AuNPs with an excitation wavelength of 316 nm can be observed at 400 nm, which was affected remarkably by irradiation time and concentration of HAuCl(4). SN - 0021-9797 UR - https://www.unboundmedicine.com/medline/citation/17707389/Synthesis_size_control_and_fluorescence_studies_of_gold_nanoparticles_in_carboxymethylated_chitosan_aqueous_solutions_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9797(07)01040-5 DB - PRIME DP - Unbound Medicine ER -