Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 150, Issue -, Pages 459-467Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2020.02.098
Keywords
Silver nanoparticles; Dispersibility; Environmental factors; Dynamic light scattering; Multiple-light-scattering; Antibacterial activities
Funding
- Natural Science Foundation of Fujian Province [2017D0009, 2017D0014]
- Fujian Provincial Health Commission [2019-WJ-40]
- Education Department of Fujian Province [2019-WJ-40]
- Fujian Provincial Health and Family Planning Commission [2018-ZQN-93]
- Institute of Respiratory Diseases, Xiamen Medical College [HXJB-14]
- Key Program of Natural Science for Yong Scholars from Fujian Higher College [JZ160495]
- Program for New Century Excellent Talents in Fujian Province University, China
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Precise prediction and measurement of dispersibilily of silver nanoparticles (AgNPs) under atmospheric conditions are extremely vital for their potential commercial application. In the present work, the dispersibilily of AgNPs capped by polysaccharide-protein from viscera of abalone (PSP-AgNPs) was studied using the combination of ultrayiolel-yisible spectroscopy (UV-vis), dynamic light scattering (DLS) and multiple-light-scattering (MLS) techniques. The results showed that the combination of UV/yis, DLS and MLS no only accurately determined the dispersibility of PSP-AgNPs, but also provided detailed information about the aggregation behavior of PSP-AgNPs. Furthermore, the results revealed a high dispersibility of PSP-AgNPs in the studied environment. The system temperature, pH value and thermal treatment (pasteurization and sterilization) had no effect on the dispersion of PSP-AgNPs in the effective concentration range against the pathogenic bacteria. Besides, an excellent stable dispersion and antibacterial activity against common pathogenic vibrio was also found in the dispersed PSP-AgNPs in seawater. Overall, the study provides a suitable method for the precise measurement of the dispersibility of AgNPs in environment. The AgNPs act as a potential bactericide with good dispersion and antibacterial activity in mariculture and other fields. (C) 2020 Elsevier B.V. All rights reserved.
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