Structural and antibacterial properties of a γ-radiation-assisted, in situ prepared silver–polycarbonate matrix

A. V. Deore; K. Hareesh; P. Ramya; E. Ianni; P. Guagliardo; S. Samarin; J. F. Williams; G. Sanjeev; S. S. Dahiwale; D. Kanjilal; N. A. Dhole; K. M. Kodam; V. N. Bhoraskar; S. D. Dhole

doi:10.1002/app.43729

Structural and antibacterial properties of a γ-radiation-assisted, in situ prepared silver–polycarbonate matrix

A. V. Deore, K. Hareesh, P. Ramya, E. Ianni, P. Guagliardo, S. Samarin, J. F. Williams, G. Sanjeev, S. S. Dahiwale, D. Kanjilal, N. A. Dhole, K. M. Kodam, V. N. Bhoraskar, S. D. Dhole

Department of Physics, Manipal Institute of Technology, Bengaluru

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

A silver–polycarbonate (Ag–PC) matrix was prepared by a γ-radiation-assisted diffusion method, and its antibacterial properties were studied. Rutherford backscattering spectroscopy, X-ray diffraction, and transmission electron microscopy results showed the diffusion of good, crystalline-structured (face-centered cubic) silver nanoparticles (AgNPs) inside polycarbonate (PC) after irradiation. Ultraviolet–visible spectroscopic results indicated a blueshift in the surface plasmon resonance of the AgNPs; this revealed a particle size decrease with increasing γ-radiation dose. This was also supported by the scanning electron microscopy results. The microstructure of the pristine PC and silver-doped PC was monitored with positron annihilation spectroscopy, and it showed decreases in the free-volume hole size and fractional free-volume for Ag–PC and γ-ray-irradiated PC. This corroborated the Doppler broadening spectroscopy results. The thermal degradation temperature of PC was increased because of the diffusion of AgNPs in PC. The antibacterial activity of the synthesized Ag–PC matrix was evaluated by the zone of inhibition, and the results demonstrated its bacterial growth inhibition ability. The results indicate the potential to produce an Ag–PC matrix for various applications in medical and food industries.

Original language	English
Article number	43729
Journal	Journal of Applied Polymer Science
Volume	133
Issue number	36
DOIs	https://doi.org/10.1002/app.43729
Publication status	Published - 20-09-2016

All Science Journal Classification (ASJC) codes

Chemistry(all)
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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10.1002/app.43729

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Deore, A. V., Hareesh, K., Ramya, P., Ianni, E., Guagliardo, P., Samarin, S., Williams, J. F., Sanjeev, G., Dahiwale, S. S., Kanjilal, D., Dhole, N. A., Kodam, K. M., Bhoraskar, V. N., & Dhole, S. D. (2016). Structural and antibacterial properties of a γ-radiation-assisted, in situ prepared silver–polycarbonate matrix. Journal of Applied Polymer Science, 133(36), [43729]. https://doi.org/10.1002/app.43729

@article{03a01b858ea04d26a3e494f3ea773299,

title = "Structural and antibacterial properties of a γ-radiation-assisted, in situ prepared silver–polycarbonate matrix",

abstract = "A silver–polycarbonate (Ag–PC) matrix was prepared by a γ-radiation-assisted diffusion method, and its antibacterial properties were studied. Rutherford backscattering spectroscopy, X-ray diffraction, and transmission electron microscopy results showed the diffusion of good, crystalline-structured (face-centered cubic) silver nanoparticles (AgNPs) inside polycarbonate (PC) after irradiation. Ultraviolet–visible spectroscopic results indicated a blueshift in the surface plasmon resonance of the AgNPs; this revealed a particle size decrease with increasing γ-radiation dose. This was also supported by the scanning electron microscopy results. The microstructure of the pristine PC and silver-doped PC was monitored with positron annihilation spectroscopy, and it showed decreases in the free-volume hole size and fractional free-volume for Ag–PC and γ-ray-irradiated PC. This corroborated the Doppler broadening spectroscopy results. The thermal degradation temperature of PC was increased because of the diffusion of AgNPs in PC. The antibacterial activity of the synthesized Ag–PC matrix was evaluated by the zone of inhibition, and the results demonstrated its bacterial growth inhibition ability. The results indicate the potential to produce an Ag–PC matrix for various applications in medical and food industries.",

author = "Deore, {A. V.} and K. Hareesh and P. Ramya and E. Ianni and P. Guagliardo and S. Samarin and Williams, {J. F.} and G. Sanjeev and Dahiwale, {S. S.} and D. Kanjilal and Dhole, {N. A.} and Kodam, {K. M.} and Bhoraskar, {V. N.} and Dhole, {S. D.}",

note = "Funding Information: Two of the authors (A.V.D. and K.H.) thank the University Grants Commission (Government of India) for its support (in the form of a University Grants Commission–Basic Scientific Research grant and a D. S. Kothari Postdoctoral Fellowship, respectively). The authors acknowledge Lochab, Mr. Birender, and Mr. Sunil Ojha (Inter-University Accelerator Centre, New Delhi, India) for providing the γ-radiation and RBS facility. This research was also supported by the University of Western Australia and the Australian Research Council. Publisher Copyright: {\textcopyright} 2016 Wiley Periodicals, Inc.",

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Deore, AV, Hareesh, K, Ramya, P, Ianni, E, Guagliardo, P, Samarin, S, Williams, JF, Sanjeev, G, Dahiwale, SS, Kanjilal, D, Dhole, NA, Kodam, KM, Bhoraskar, VN & Dhole, SD 2016, 'Structural and antibacterial properties of a γ-radiation-assisted, in situ prepared silver–polycarbonate matrix', Journal of Applied Polymer Science, vol. 133, no. 36, 43729. https://doi.org/10.1002/app.43729

TY - JOUR

T1 - Structural and antibacterial properties of a γ-radiation-assisted, in situ prepared silver–polycarbonate matrix

AU - Deore, A. V.

AU - Hareesh, K.

AU - Ramya, P.

AU - Ianni, E.

AU - Guagliardo, P.

AU - Samarin, S.

AU - Williams, J. F.

AU - Sanjeev, G.

AU - Dahiwale, S. S.

AU - Kanjilal, D.

AU - Dhole, N. A.

AU - Kodam, K. M.

AU - Bhoraskar, V. N.

AU - Dhole, S. D.

N1 - Funding Information: Two of the authors (A.V.D. and K.H.) thank the University Grants Commission (Government of India) for its support (in the form of a University Grants Commission–Basic Scientific Research grant and a D. S. Kothari Postdoctoral Fellowship, respectively). The authors acknowledge Lochab, Mr. Birender, and Mr. Sunil Ojha (Inter-University Accelerator Centre, New Delhi, India) for providing the γ-radiation and RBS facility. This research was also supported by the University of Western Australia and the Australian Research Council. Publisher Copyright: © 2016 Wiley Periodicals, Inc.

PY - 2016/9/20

Y1 - 2016/9/20

N2 - A silver–polycarbonate (Ag–PC) matrix was prepared by a γ-radiation-assisted diffusion method, and its antibacterial properties were studied. Rutherford backscattering spectroscopy, X-ray diffraction, and transmission electron microscopy results showed the diffusion of good, crystalline-structured (face-centered cubic) silver nanoparticles (AgNPs) inside polycarbonate (PC) after irradiation. Ultraviolet–visible spectroscopic results indicated a blueshift in the surface plasmon resonance of the AgNPs; this revealed a particle size decrease with increasing γ-radiation dose. This was also supported by the scanning electron microscopy results. The microstructure of the pristine PC and silver-doped PC was monitored with positron annihilation spectroscopy, and it showed decreases in the free-volume hole size and fractional free-volume for Ag–PC and γ-ray-irradiated PC. This corroborated the Doppler broadening spectroscopy results. The thermal degradation temperature of PC was increased because of the diffusion of AgNPs in PC. The antibacterial activity of the synthesized Ag–PC matrix was evaluated by the zone of inhibition, and the results demonstrated its bacterial growth inhibition ability. The results indicate the potential to produce an Ag–PC matrix for various applications in medical and food industries.

AB - A silver–polycarbonate (Ag–PC) matrix was prepared by a γ-radiation-assisted diffusion method, and its antibacterial properties were studied. Rutherford backscattering spectroscopy, X-ray diffraction, and transmission electron microscopy results showed the diffusion of good, crystalline-structured (face-centered cubic) silver nanoparticles (AgNPs) inside polycarbonate (PC) after irradiation. Ultraviolet–visible spectroscopic results indicated a blueshift in the surface plasmon resonance of the AgNPs; this revealed a particle size decrease with increasing γ-radiation dose. This was also supported by the scanning electron microscopy results. The microstructure of the pristine PC and silver-doped PC was monitored with positron annihilation spectroscopy, and it showed decreases in the free-volume hole size and fractional free-volume for Ag–PC and γ-ray-irradiated PC. This corroborated the Doppler broadening spectroscopy results. The thermal degradation temperature of PC was increased because of the diffusion of AgNPs in PC. The antibacterial activity of the synthesized Ag–PC matrix was evaluated by the zone of inhibition, and the results demonstrated its bacterial growth inhibition ability. The results indicate the potential to produce an Ag–PC matrix for various applications in medical and food industries.

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U2 - 10.1002/app.43729

DO - 10.1002/app.43729

M3 - Article

AN - SCOPUS:84971632084

SN - 0021-8995

VL - 133

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

IS - 36

M1 - 43729

ER -

Structural and antibacterial properties of a γ-radiation-assisted, in situ prepared silver–polycarbonate matrix

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