| 학회 |
한국재료학회 |
| 학술대회 |
2014년 가을 (11/27 ~ 11/28, 대전컨벤션센터) |
| 권호 |
20권 2호 |
| 발표분야 |
D. 바이오 재료(Biomaterials) |
| 제목 |
Highly Porous Polymer Microspheres Decorated with Silver Nanoparticles via Mussel-inspired Polydopamine Chemistry |
| 초록 |
We introduce a facile method to prepare highly porous polymer microspheres decorated with silver nanoparticles (Ag NPs) via mussel-inspired polydopamine chemistry. Macroporous poly(methyl methacrylate) (PMMA) microspheres are prepared by a single oil-in-water emulsion solvent evaporation technique using Pluronic F127 as an extractable porogen. The internal pore surfaces of the microspheres are coated with polydopamine (denoted as ‘pD’) via the oxidative polymerization of dopamines in an aqueous milieu at an ambient temperature. The pD layer acts as an reactive layer for the spontaneous reduction of silver nitrate into solid Ag NPs which are immobilized within the pores of the microspheres by the adhesive property of the pD layer. The Ag NP-decorated PMMA microspheres are characterized by X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDX), and inductively coupled plasma mass spectrometry (ICP-MS). In addition, anti-bacterial activities of the Ag NP-decorated PMMA microspheres are investigated using gram-negative BL21 E. Coli. We expect that our approach can provide a simple and useful method to prepare functional porous polymer materials decorated with various metal nanoparticles, which can be utilized for a broad range of practical applications such as catalytic systems, biomedical and pharmaceutical applications, sensors, and cosmetic and personal care products. |
| 저자 |
손호연1, 이동재1, 이준배2, 박천호2, 남윤성1
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| 소속 |
1한국과학기술원, 2코스맥스 |
| 키워드 |
Porous polymer microsphere; polydopamine; silver nanoparticles; PMMA; antibacterial
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| E-Mail |
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