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Ueda M, Yokota T, Honda M, Lim PN, Osaka N, Makita M, Nishikawa Y, Kasuga T, Aizawa M. Regulating size of silver nanoparticles on calcium carbonate via ultrasonic spray for effective antibacterial efficacy and sustained release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 125:112083. [PMID: 33965099 DOI: 10.1016/j.msec.2021.112083] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 03/06/2021] [Accepted: 03/26/2021] [Indexed: 10/21/2022]
Abstract
Calcium carbonate is used as bone-filling material due to its good biocompatibility, bioactivity, and bioabsorbability, but the prevalence of infectious complications associated with calcium carbonate has created a persisting challenge in the treatment of bone defect. Therefore, this greatly necessitate the need to endow calcium carbonate with antibacterial properties. In this study, calcium carbonate powders loaded with silver nanoparticles (Ag-CaCO3) were prepared in attempt to serve as a novel antibacterial inorganic filler material. This objective was achieved using ultrasonic spray-pyrolysis (USSP) route to produce Ag-CaCO3 with 1, 5 and 10 mol% silver. The size of silver nanoparticles on CaCO3 microspheres could be regulated by adjusting silver concentration to facilitate effective release of Ag+ ions. This was demonstrated in Ag-CaCO3 (1), where the lowest silver content at 1 mol% achieved the highest Ag+ ions release over 28 days. This in turn gave rise to effective antibacterial efficiency against Staphylococcus aureus and Escherichia coli. Furthermore, CaCO3 (1) could also support osteoblast-like cells (MG-63) at a cell viability of 80%. Overall, this work extends the capabilities in employing USSP to produce inorganic filler materials with sustained antibacterial properties, bringing one step closer to the development of antibacterial products.
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Affiliation(s)
- Mayu Ueda
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama ku, Kawasaki, Kanagawa 2148571, Japan
| | - Tomohiro Yokota
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama ku, Kawasaki, Kanagawa 2148571, Japan
| | - Michiyo Honda
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama ku, Kawasaki, Kanagawa 2148571, Japan
| | - Poon Nian Lim
- International Institute for Materials with Life Functions, Meiji University, 1-1-1 Higashimita, Tama ku, Kawasaki, Kanagawa 2148571, Japan
| | - Naoya Osaka
- ORTHOREBIRTH Co. Ltd., 3-17-43 Chigasaki Higashi, Tsuzuki ku, Yokohama, Kanagawa 2240033, Japan
| | - Masashi Makita
- ORTHOREBIRTH Co. Ltd., 3-17-43 Chigasaki Higashi, Tsuzuki ku, Yokohama, Kanagawa 2240033, Japan
| | - Yasutoshi Nishikawa
- ORTHOREBIRTH Co. Ltd., 3-17-43 Chigasaki Higashi, Tsuzuki ku, Yokohama, Kanagawa 2240033, Japan
| | - Toshihiro Kasuga
- Division of Advanced Ceramics, Nagoya Institute of Technology, Gokiso cho, Showa ku, Nagoya, Aichi 4668555, Japan
| | - Mamoru Aizawa
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama ku, Kawasaki, Kanagawa 2148571, Japan; International Institute for Materials with Life Functions, Meiji University, 1-1-1 Higashimita, Tama ku, Kawasaki, Kanagawa 2148571, Japan.
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