지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제24권 제4호
- 발행연도
- 2014.1
- 수록면
- 522 - 533 (12page)
이용수
초록· 키워드
오류제보하기
Bionanotechnology has revolutionized nanomaterial synthesis by providing a green syntheticplatform using biological systems. Among such biological systems, microalgae havetremendous potential to take up metal ions and produce nanoparticles by a detoxificationprocess. The present study explores the intracellular and extracellular biogenic syntheses ofsilver nanoparticles (SNPs) using the unicellular green microalga Scenedesmus sp.
Biosynthesized SNPs were characterized by AAS, UV-Vis spectroscopy, TEM, XRD, FTIR,DLS, and TGA studies and finally checked for antibacterial activity. Intracellular nanoparticlebiosynthesis was initiated by a high rate of Ag+ ion accumulation in the microalgal biomassand subsequent formation of spherical crystalline SNPs (average size, 15-20 nm) due to thebiochemical reduction of Ag+ ions. The synthesized nanoparticles were intracellular, asconfirmed by the UV-Vis spectra of the outside medium. Furthermore, extracellular synthesisusing boiled extract showed the formation of well scattered, highly stable, spherical SNPs withan average size of 5-10 nm. The size and morphology of the nanoparticles were confirmed byTEM. The crystalline nature of the SNPs was evident from the diffraction peaks of XRD andbright circular ring pattern of SAED. FTIR and UV-Vis spectra showed that biomolecules,proteins and peptides, are mainly responsible for the formation and stabilization of SNPs.
Furthermore, the synthesized nanoparticles exhibited high antimicrobial activity againstpathogenic gram-negative and gram-positive bacteria. Use of such a microalgal systemprovides a simple, cost-effective alternative template for the biosynthesis of nanomaterials in alarge-scale system that could be of great use in biomedical applications.
목차
등록된 정보가 없습니다.
참고문헌 (24)
참고문헌 신청
Ahmad A / 2003 / Intracellular synthesis of gold nanoparticles by a novel alkalotolerant actinomycete, Rhodococcus species / Nanotechnology 14 : 824 ~ 828
Ahmad AL / 2011 / Microalgae as a sustainable energy source for biodiesel production: a review / Renew. Sustain. Ener. Rev 15 : 584 ~ 593
Barwal I / 2011 / Cellular oxido-reductive proteins of Chlamydomonas reinhardtii control the biosynthesis of silver nanoparticles / J. Nanobiotechnol 9 : 56 ~
Bosch A / 2006 / Characterization of Bordetella pertussis growing as biofilm by chemical analysis and FT-IR spectroscopy / Appl. Microbiol 71 : 736 ~ 747
Brayner R / 2007 / Cyanobacteria as bioreactors for the synthesis of Au, Ag, Pd, and Pt nanoparticles via an enzyme-mediated route / J. Nanosci. Nanotechnol 7 : 2696 ~ 2708
Ahmad AL / 2011 / Microalgae as a sustainable energy source for biodiesel production: a review / Renew. Sustain. Ener. Rev 15 : 584 ~ 593
Barwal I / 2011 / Cellular oxido-reductive proteins of Chlamydomonas reinhardtii control the biosynthesis of silver nanoparticles / J. Nanobiotechnol 9 : 56 ~
Bosch A / 2006 / Characterization of Bordetella pertussis growing as biofilm by chemical analysis and FT-IR spectroscopy / Appl. Microbiol 71 : 736 ~ 747
Brayner R / 2007 / Cyanobacteria as bioreactors for the synthesis of Au, Ag, Pd, and Pt nanoparticles via an enzyme-mediated route / J. Nanosci. Nanotechnol 7 : 2696 ~ 2708
이 논문의 저자 정보
최근 본 자료
댓글(0)
0