Influence of Gamma Irradiation on Structural, Thermal and Antibacterial Properties of HPMC/ZnO Nanocomposites

被引：0
|
作者：
Rao, B. Lakshmeesha [1 ]
Madhukumar, R. [1 ]
Latha, S. [1 ]
Shetty, G. Rajesha [2 ]
Shivananda, C. S. [1 ]
Chandra, K. Sharath [3 ]
Sangappa, Y. [1 ,4 ]
机构：
[1] Mangalore Univ, Dept Studies Phys, Mangalore 574199, India
[2] Govt First Grade Coll, Dept Phys, Udupi 576113, India
[3] Mangalore Univ, Dept Biosci, Mangalore 574199, India
[4] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
来源：
DAE SOLID STATE PHYSICS SYMPOSIUM 2015 | 2016年 / 1731卷
关键词：
ZnO nanoparticles; Gamma irradiation; Structural properties; Thermal properties; Antibacterial properties;
D O I：
10.1063/1.4947846
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
This work was carried out to evaluate the effect of gamma irradiation on the structural, thermal and antibacterial properties of HPMC/ZnO nanocomposite films exposed to Cobalt-60 (Average energy: 1.25MeV). The X-ray diffraction study revealed that the crystallite size (L in angstrom) decreased as irradiation dose increased. The crystallinity (X-c ) of the nanocomposites initially increased and at higher doses it was decreased. The thermal stability of the nanocomposites increased up to 50 kGy and after that decreased as the irradiation dose increased. But, HPMC/ZnO nanocomposite films, showed a promising range of antimicrobial activity against tested micro-organisms making nanocomposites suitable for food packing and other biomedical applications.
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页数：3
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