Facile synthesis of Ag and Au nanoparticles utilizing chitosan as a mediator agent

Wei, Dongwei; Qian, Weiping

doi:10.1016/j.colsurfb.2007.09.030

Cited by 297 publications

(149 citation statements)

References 43 publications

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“…The biocompatibility, biodegradability, non-toxicity and absorption properties of chitosan have been explained for many applications. Wei and co-workers used it as a reducing agent to prepare gold nanoparticles by thermal and photochemical methods [14,15].…”

Section: Introductionmentioning

confidence: 99%

Designed plasmonic nanocatalysts for the reduction of eosin Y: absorption and fluorescence study

et al. 2012

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In this work, we report a one-step green synthesis of gold nanoparticles (AuNPs) by microwave irradiation using nontoxic and biodegradable polysaccharide chitosan as a reducing and stabilizing agent. The interaction between gold nanoparticles with the amine group of chitosan was confirmed by Fourier transform infrared spectroscopy analysis, and the stability of the nanoparticle is ascertained by zeta potential measurements. Transmission electron microscopy photograph and dynamic light scattering measurements confirmed the average size of gold nanoparticles as 25 nm. The ability of the synthesised gold nanoparticles as a catalyst for the reduction of eosin dye in the presence of NaBH 4 was monitored by means of spectrofluorometry and spectrophotometry. It is found that the NaBH 4 -induced reduction of eosin is enhanced in the presence of AuNPs even without a catalyst. Time-resolved fluorescence decay studies also confirmed the reduction of eosin in the presence of AuNPs.

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Section: Introductionmentioning

confidence: 99%

Designed plasmonic nanocatalysts for the reduction of eosin Y: absorption and fluorescence study

et al. 2012

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“…When Cu salts dissolve in acidified chitosan solution, Cu ion binds to the polymer chains via amino groups. The reduction of these ions takes place further, coupled with the oxidation of the hydroxyl groups [78,79].…”

Section: Copper-chitosan Nanoparticlesmentioning

confidence: 98%

Chitosan: A Promising Substrate for Regenerative Medicine in Drug Formulation

Kashyap

Archana

Semwal³

et al. 2015

Springer Series on Polymer and Composite Materials

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Chitosan plays a most important role in the regenerative medication for wound healing. The adhesive nature of chitosan, with their antifungal and bactericidal character, and their permeability to oxygen, is a very important property associated with the treatment of wounds. Different derivatives and combination of chitosan have been reported for this purpose in the form of hydrogels, fibers, membranes, scaffolds and sponges. The purpose of the chapter is to have a closer look in the work done directly by different researchers on the chitosan formulation with potential medicinal applications to provide a better understanding of its usability in regenerative medicine.

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“…14 Moreover, some bio-scaffolds such as polysaccharide, 15 DNAs, 16 viruses, 17 proteins and peptides, [18][19][20] have been utilized in the synthesis of magnetic nanostructures.…”

Section: 10mentioning

confidence: 99%

Protein-Directed Synthesis of γ-Fe₂O₃Nanoparticles and Their Magnetic Properties Investigation

Soleyman¹,

Pourjavadi²,

Masoud³

et al. 2014

Bulletin of the Korean Chemical Society

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In this study, maghemite (γ-Fe 2 O 3 ) nanoparticles were produced using gelatin protein as an effective mediator. Size, shape, surface morphology and magnetic properties of the prepared γ-Fe 2 O 3 nanoparticles were characterized using XRD, FT-IR, TEM, SEM and VSM data. The effects of furnace temperature and time of heating together with the amount of gelatin on the produced gelatin-Fe 3 O 4 nanocomposite were examined to prove the fundamental effect of gelatin; both as a capping agent in the nanoscale synthesis and as the director of the spinel γ-Fe 2 O 3 synthesis among possible Fe 2 O 3 crystalline structures.

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Facile synthesis of Ag and Au nanoparticles utilizing chitosan as a mediator agent

Cited by 297 publications

References 43 publications

Designed plasmonic nanocatalysts for the reduction of eosin Y: absorption and fluorescence study

Designed plasmonic nanocatalysts for the reduction of eosin Y: absorption and fluorescence study

Chitosan: A Promising Substrate for Regenerative Medicine in Drug Formulation

Protein-Directed Synthesis of γ-Fe₂O₃Nanoparticles and Their Magnetic Properties Investigation

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Facile synthesis of Ag and Au nanoparticles utilizing chitosan as a mediator agent

Cited by 297 publications

References 43 publications

Designed plasmonic nanocatalysts for the reduction of eosin Y: absorption and fluorescence study

Designed plasmonic nanocatalysts for the reduction of eosin Y: absorption and fluorescence study

Chitosan: A Promising Substrate for Regenerative Medicine in Drug Formulation

Protein-Directed Synthesis of γ-Fe2O3Nanoparticles and Their Magnetic Properties Investigation

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Protein-Directed Synthesis of γ-Fe₂O₃Nanoparticles and Their Magnetic Properties Investigation