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  • 09월 08일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제116회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Fluorescence characteristics of biological materials in ultraviolet light

2015년 9월 7일 16시 27분 03초
BIO.P-220 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 15일 (목요일) 11:00~12:30
저자 및
국방과학연구소 5본부 3부, Korea
Recently, public environmental interests are quickly growing as increase of hazardous substance due to formation of various hazardous substances in the surroundings by industrial development. Some airborne biological particles are important in infection of diseases of humans, animals, and plants. An ambient aerosol consists of fine dusts and microorganisms and if people are affected by those particles for a long period it can cause severe diseases. In fact, certain bacteria, rickettsia, viruses, toxins, and microbial neurotoxins have been feared as potential airborne biological warfare agents. All of these biological cells contain fluorescent molecules. The fundamental fluorescent materials in most bacterial cells are the same; fluorescent amino acids such as tryptophan, tyrosine, and phenylalanine (excitation/emission maxima ~280/350 nm), which are constituents of proteins; reduced nicotinamide-adenine dinucleotides (NADH, NADPH) (excitation/emission maxima ~340/450 nm); and flavin compounds (e.g., flavin adenine dinucleotide, flavoproteins, riboflavin) (excitation/emission maxima ~450/520 nm). Even bacterial spores contain significant amounts of flavins and nicotinamide compounds. In this research, we measured fluorescence of various biological compounds and investigated the fluorescence characteristics of them. This endeavor is part of an effort to determine useful fluorescence excitation and emission wavelengths for discrimination between biological and nonbiological particles and among different types of biological particles such as cells, spores, and toxins. These results can assist in selecting excitation and emission wavelength to allow partial discrimination among aerosol particle types.