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Synthesis and anti-fungal effect of silver nanoparticles-chitosan composite particles.

Wang LS, Wang CY, Yang CH, Hsieh CL, Chen SY, Shen CY, Wang JJ, Huang KS - Int J Nanomedicine (2015)

Bottom Line: The diameter of the synthesized chitosan composite particles ranged from 1.7 mm to 2.5 mm, and the embedded silver nanoparticles were measured to be 15 ± 3.3 nm.The results show that the silver nanoparticles were distributed over the surface and interior of the chitosan spheres.The fabricated spheres had macroporous property, and could be used for many applications such as fungicidal agents in the future.

View Article: PubMed Central - PubMed

Affiliation: Department of Electrical Engineering, I-Shou University, Kaohsiung, Taiwan ; Department of Biomedical Engineering, I-Shou University, Kaohsiung, Taiwan ; The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung, Taiwan ; Department of Chinese Medicine, E-Da Hospital, Kaohsiung, Taiwan.

ABSTRACT
Silver nanoparticles have been used in various fields, and several synthesis processes have been developed. The stability and dispersion of the synthesized nanoparticles is vital. The present article describes a novel approach for one-step synthesis of silver nanoparticles-embedded chitosan particles. The proposed approach was applied to simultaneously obtain and stabilize silver nanoparticles in a chitosan polymer matrix in-situ. The diameter of the synthesized chitosan composite particles ranged from 1.7 mm to 2.5 mm, and the embedded silver nanoparticles were measured to be 15 ± 3.3 nm. Further, the analyses of ultraviolet-visible spectroscopy, energy dispersive spectroscopy, and X-ray diffraction were employed to characterize the prepared composites. The results show that the silver nanoparticles were distributed over the surface and interior of the chitosan spheres. The fabricated spheres had macroporous property, and could be used for many applications such as fungicidal agents in the future.

No MeSH data available.


The UV-Vis absorbance spectra of the synthesized silver–chitosan composite spheres at various concentrations of AgNO3 solution.Abbreviations: AgNO3, silver nitrate; NaOH, sodium hydroxide; au, arbitrary unit; UV-Vis, ultraviolet-visible spectroscopy.
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f3-ijn-10-2685: The UV-Vis absorbance spectra of the synthesized silver–chitosan composite spheres at various concentrations of AgNO3 solution.Abbreviations: AgNO3, silver nitrate; NaOH, sodium hydroxide; au, arbitrary unit; UV-Vis, ultraviolet-visible spectroscopy.

Mentions: Figure 3 shows the UV-Vis absorbance spectra of the synthesized silver nanoparticles–chitosan composite spheres at various concentrations of NaOH. Two significant peaks were observed: the peak at 275 nm is a characteristic peak of chitosan, whereas 410 nm is a characteristic peak of nano size silver particles.50Figure S1 shows the TEM photo of the synthesized silver nanoparticles. The particle size was measured to be 15±3.3 nm, which was consistent with the result of UV-Vis spectroscopy. The absorption peaks of the UV-V is spectra shifted to a longer wavelength when the particle diameters were increased.50 Nevertheless, the results shown in Figure 3 presume that there is nearly no change in the peaks (~410 nm) at the various concentrations of NaOH, indicating that the concentration of NaOH has no significant influence on the diameters of the synthesized silver particles.


Synthesis and anti-fungal effect of silver nanoparticles-chitosan composite particles.

Wang LS, Wang CY, Yang CH, Hsieh CL, Chen SY, Shen CY, Wang JJ, Huang KS - Int J Nanomedicine (2015)

The UV-Vis absorbance spectra of the synthesized silver–chitosan composite spheres at various concentrations of AgNO3 solution.Abbreviations: AgNO3, silver nitrate; NaOH, sodium hydroxide; au, arbitrary unit; UV-Vis, ultraviolet-visible spectroscopy.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4388074&req=5

f3-ijn-10-2685: The UV-Vis absorbance spectra of the synthesized silver–chitosan composite spheres at various concentrations of AgNO3 solution.Abbreviations: AgNO3, silver nitrate; NaOH, sodium hydroxide; au, arbitrary unit; UV-Vis, ultraviolet-visible spectroscopy.
Mentions: Figure 3 shows the UV-Vis absorbance spectra of the synthesized silver nanoparticles–chitosan composite spheres at various concentrations of NaOH. Two significant peaks were observed: the peak at 275 nm is a characteristic peak of chitosan, whereas 410 nm is a characteristic peak of nano size silver particles.50Figure S1 shows the TEM photo of the synthesized silver nanoparticles. The particle size was measured to be 15±3.3 nm, which was consistent with the result of UV-Vis spectroscopy. The absorption peaks of the UV-V is spectra shifted to a longer wavelength when the particle diameters were increased.50 Nevertheless, the results shown in Figure 3 presume that there is nearly no change in the peaks (~410 nm) at the various concentrations of NaOH, indicating that the concentration of NaOH has no significant influence on the diameters of the synthesized silver particles.

Bottom Line: The diameter of the synthesized chitosan composite particles ranged from 1.7 mm to 2.5 mm, and the embedded silver nanoparticles were measured to be 15 ± 3.3 nm.The results show that the silver nanoparticles were distributed over the surface and interior of the chitosan spheres.The fabricated spheres had macroporous property, and could be used for many applications such as fungicidal agents in the future.

View Article: PubMed Central - PubMed

Affiliation: Department of Electrical Engineering, I-Shou University, Kaohsiung, Taiwan ; Department of Biomedical Engineering, I-Shou University, Kaohsiung, Taiwan ; The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung, Taiwan ; Department of Chinese Medicine, E-Da Hospital, Kaohsiung, Taiwan.

ABSTRACT
Silver nanoparticles have been used in various fields, and several synthesis processes have been developed. The stability and dispersion of the synthesized nanoparticles is vital. The present article describes a novel approach for one-step synthesis of silver nanoparticles-embedded chitosan particles. The proposed approach was applied to simultaneously obtain and stabilize silver nanoparticles in a chitosan polymer matrix in-situ. The diameter of the synthesized chitosan composite particles ranged from 1.7 mm to 2.5 mm, and the embedded silver nanoparticles were measured to be 15 ± 3.3 nm. Further, the analyses of ultraviolet-visible spectroscopy, energy dispersive spectroscopy, and X-ray diffraction were employed to characterize the prepared composites. The results show that the silver nanoparticles were distributed over the surface and interior of the chitosan spheres. The fabricated spheres had macroporous property, and could be used for many applications such as fungicidal agents in the future.

No MeSH data available.