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NTIS 바로가기한국미생물·생명공학회지 = Korean journal of microbiology and biotechnology, v.39 no.1, 2011년, pp.1 - 8
황인석 (경북대학교 자연과학대학 생명과학부) , 조재용 (경북대학교 자연과학대학 생명과학부) , 황지홍 (경북대학교 자연과학대학 생명과학부) , 황보미 (경북대학교 자연과학대학 생명과학부) , 최혜민 (경북대학교 자연과학대학 생명과학부) , 이준영 (경북대학교 자연과학대학 생명과학부) , 이동건 (경북대학교 자연과학대학 생명과학부)
The antimicrobial effects of silver (Ag) ion or salts are well known. Recently, silver nanoparticle is attracting an interest in a wide variety of fields since it has been known to be safe and effective as an antimicrobial agent against a broad spectrum of microorganisms. Although silver nanoparticl...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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은 이온의 한계는 무엇인가? | 은 이온의 경우 은 이온이 함유된 용액 상태에서 사용해야 하거나 보다 물에 잘 용해 될 수 있도록 하는 특정 물질에 이온 결합을 시켜야 응용이 가능하다는 제한이 있다[17]. 반면 은나노 입자는 나노(1~100 nm) 크기로써 고체 상태로도 제조가 가능하고 지속성이 뛰어나서 생활 용품 및 의료용품으로 연구 및 개발이 활발히 이루어지고 있다. | |
은의 특징은 무엇인가? | 오래 전부터 인류는 미생물에 의한 감염성 질환에 대비하고 치료를 목적으로 생약성분이나 금속계 항균 물질을 이용하였는데 은(Ag)이 그 중 하나이다. 은은 인체에 해가 없고 독성이 없으며, 미생물 체내의 신진대사 기능을 다방면으로 억제하여 650여 종류의 유해 세균을 죽이는 것으로 알려져 있다[27]. 이러한 신진대사 기능 억제 이외에도 금속 은(Ag) 이 방출하는 은 이온(Ag+)의 전기적 능력으로 인해 미생물의 생식기능에 영향을 주어 향균 및 살균 작용을 하는 것 또한 알려져 있다[46]. | |
은나노 입자의 합성 방법에는 무엇이 있는가? | 은나노 입자의 합성 방법에는 여러 방법들이 있다(Table 1). AgNO3(silver nitrate)을 이용한 방법, UV light을 이용한 광 환원법과 다양한 종의 박테리아나 곰팡이들을 이용한 생체합성 등의 다양한 방법이 있다[10, 14, 29, 40, 49]. 이러한 다양한 방법들은 각각의 특별한 장단점이 존재하는데 생성되는 크기나 모양, 안정성 또는 순도 등에서 차이점을 보인다[6]. |
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