윤기영 이승재 이정은 배귀남 지준호 황정호 정효일 2024-01-21T04:35:51Z 2024-01-21T04:35:51Z 2021-09-06 2005-08 1738-4125 https://pubs.kist.re.kr/handle/201004/136240 The antimicrobial activity of metallic nanoparticles against bacteria was investigated. Silver, copper, and titania nanoparticles were tested. The bacteria species E. coli and B. subtilis were selected as models for Gram-negative and Gram-positive bacteria, respectively. Bacteriological tests were performed in Luria-Bertani (LB) medium or Nutrient (NT) medium on solid agar plates containing different concentrations of nanoparticles in the range of 0 to 150 μg/mL. Silver and copper nanoparticles were shown to be an effective bactericide. However, titania nanoparticles were found to be ineffective as an antimicrobial agent. It appears that E. coli cells are more sensitive to the copper nanoparticles than to silver nanoparticles and B. subtilis cells have similar sensitivity against both copper and silver nanoparticles. Korean 한국실내환경학회 박테리아에 대한 나노 입자의 항균 특성 평가 Evaluation of Antimicrobial Characteristics of Nanoparticles against Bacteria Article 2 한국실내환경학회지, v.2, no.1, pp.46 - 53 한국실내환경학회지 2 1 46 53 ART001269589 Antimicrobial Bacteria B. subtilis E. coli Nanoparticles Silver Copper Antimicrobial Bacteria B. subtilis E. coli Nanoparticles Silver Copper