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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제20권 제5호
- 발행연도
- 2010.1
- 수록면
- 908 - 916 (9page)
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초록· 키워드
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Fullerene-60 nanoparticles were used for studying their effect on the low-density polyethylene (LDPE) biodegradation efficiency of two potential polymer-degrading consortia comprising three bacterial strains each. At a concentration of 0.01% (w/v) in minimal broth lacking dextrose, fullerene did not have any negative influence upon the consortia growth. However, fullerene was found to be detrimental for bacterial growth at higher concentrations (viz., 0.25%,0.5%, and 1%). Although addition of 0.01% fullerene into the biodegradation assays containing 5mg/ml LDPE subsided growth curves significantly, subsequent analysis of the degraded products revealed an enhanced biodegradation. Fourier transform infrared spectroscopy (FT-IR) revealed breakage and formation of chemical bonds along with the introduction of ν C-O frequencies into the hydrocarbon backbone of LDPE.
Moreover, simultaneous thermogravimetric-differential thermogravimetry-differential thermal analysis (TG-DTGDTA)revealed a higher number of decomposition steps along with a 1,000-fold decrease in the heat of reactions (ΔH) in fullerene-assisted biodegraded LDPE, suggesting the probable formation of multiple macromolecular byproducts.
This is the first report whereby fullerene-60,which is otherwise considered toxic, has helped to accelerate the polymer biodegradation process of bacterial consortia.
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참고문헌 (22)
참고문헌 신청
Bosi, S / 2003 / Fullerene derivatives: An attractive tool for biological applications / Eur. J. Med. Chem 38 : 913 ~ 923
Chiron, J. P / 2000 / Effect of micronized C60 fullerene on the microbial growth in vitro / Ann. Pharm. Fr 58 : 170 ~ 175
Duran, N / 2007 / Antibacterial effect of silver nanoparticles produced by fungal process on textile fabrics and their effluent treatment / J. Biomed. Nanotech 3 : 203 ~ 208
Flores, M / 2004 / A study of the growth curves of C. xerosis and E. coli bacteria in mediums containing cobalt ferrite nanoparticles / Materials Research Society Symposium Proceed
Fu, G. F / 2005 / Anatase TiO2 nanocomposites for antimicrobial coatings / J. Phys. Chem 109 : 8889 ~ 8898
Chiron, J. P / 2000 / Effect of micronized C60 fullerene on the microbial growth in vitro / Ann. Pharm. Fr 58 : 170 ~ 175
Duran, N / 2007 / Antibacterial effect of silver nanoparticles produced by fungal process on textile fabrics and their effluent treatment / J. Biomed. Nanotech 3 : 203 ~ 208
Flores, M / 2004 / A study of the growth curves of C. xerosis and E. coli bacteria in mediums containing cobalt ferrite nanoparticles / Materials Research Society Symposium Proceed
Fu, G. F / 2005 / Anatase TiO2 nanocomposites for antimicrobial coatings / J. Phys. Chem 109 : 8889 ~ 8898
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