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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.


Characterization of silver nanoparticles–chitosan composite spheres by FTIR and XRD.Notes: (A) The FTIR spectrum, a represents Ag@chitosan, b represents chitosan and (B) the XRD graphs of the fabricated silver nanoparticles–chitosan composite spheres.Abbreviations: FTIR, Fourier transform infrared spectroscopy; XRD, X-ray diffraction; au, arbitrary unit.
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f4-ijn-10-2685: Characterization of silver nanoparticles–chitosan composite spheres by FTIR and XRD.Notes: (A) The FTIR spectrum, a represents Ag@chitosan, b represents chitosan and (B) the XRD graphs of the fabricated silver nanoparticles–chitosan composite spheres.Abbreviations: FTIR, Fourier transform infrared spectroscopy; XRD, X-ray diffraction; au, arbitrary unit.

Mentions: Figure 4A shows the FTIR spectra of the silver nanoparticles–chitosan composite spheres. The bands between 3,462 cm−1 and 3,441 cm−1 were related to the stretching vibrations of amino groups from NH-amine. The bands between 2,925 cm−1 and 2,891 cm−1 corresponded to the alkane C-H-stretching lipids. The bands between 1,632 cm−1 and 1,597 cm−1 corresponded to the amino groups of amide. The bands between 1,385 cm−1 and 1,387 cm−1 were associated with the C=C stretching of aromatic amine groups. The bands between 1,077 cm−1 and 1,075 cm−1 were related to the carbonyl stretch in proteins. The silver nanoparticles were bonded by protein, which served as a stabilizing agent, either through free amine groups or cysteine residues.51,52 These proteins were present as enzymes that could reduce AgNO3 ions to form silver nanoparticles.52


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)

Characterization of silver nanoparticles–chitosan composite spheres by FTIR and XRD.Notes: (A) The FTIR spectrum, a represents Ag@chitosan, b represents chitosan and (B) the XRD graphs of the fabricated silver nanoparticles–chitosan composite spheres.Abbreviations: FTIR, Fourier transform infrared spectroscopy; XRD, X-ray diffraction; au, arbitrary unit.
© Copyright Policy
Related In: Results  -  Collection

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

f4-ijn-10-2685: Characterization of silver nanoparticles–chitosan composite spheres by FTIR and XRD.Notes: (A) The FTIR spectrum, a represents Ag@chitosan, b represents chitosan and (B) the XRD graphs of the fabricated silver nanoparticles–chitosan composite spheres.Abbreviations: FTIR, Fourier transform infrared spectroscopy; XRD, X-ray diffraction; au, arbitrary unit.
Mentions: Figure 4A shows the FTIR spectra of the silver nanoparticles–chitosan composite spheres. The bands between 3,462 cm−1 and 3,441 cm−1 were related to the stretching vibrations of amino groups from NH-amine. The bands between 2,925 cm−1 and 2,891 cm−1 corresponded to the alkane C-H-stretching lipids. The bands between 1,632 cm−1 and 1,597 cm−1 corresponded to the amino groups of amide. The bands between 1,385 cm−1 and 1,387 cm−1 were associated with the C=C stretching of aromatic amine groups. The bands between 1,077 cm−1 and 1,075 cm−1 were related to the carbonyl stretch in proteins. The silver nanoparticles were bonded by protein, which served as a stabilizing agent, either through free amine groups or cysteine residues.51,52 These proteins were present as enzymes that could reduce AgNO3 ions to form silver nanoparticles.52

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.