Mechanochemical synthesis of fluorescent carbon dots from cellulose powders
- 주제(키워드) cellulose , mechanochemistry , carbon dots , carbon nano-onions
- 주제(기타) Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied
- 설명문(일반) [Chae, Ari; Choi, Yujin; Jo, Seongho; Park, Sung Young; In, Insik] Korea Natl Univ Transportat, Dept IT Convergence, Brain Korea PLUS 21, Chungju 380702, South Korea; [Choi, Bo Ram; Lee, Hyukjin] Ewha Womans Univ, Coll Pharm, Grad Sch Pharmaceut Sci, Seoul 120750, South Korea; [Kang, Eun Bi; Park, Sung Young] Korea Natl Univ Transportat, Dept Chem & Biol Engn, Chungju 380702, South Korea; [In, Insik] Korea Natl Univ Transportat, Dept Polymer Sci & Engn, Chungju 380702, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 IOP PUBLISHING LTD
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000151752
- 본문언어 영어
- Published As http://dx.doi.org/10.1088/1361-6528/aaad49
초록/요약
A novel mechanochemical method was firstly developed to synthesize carbon nanodots (CNDs) or carbon nano-onions (CNOs) through high-pressure homogenization of cellulose powders as naturally abundant resource depending on the treatment times. While CNDs (less than 5 nm in size) showed spherical and amorphous morphology, CNOs (10-50 nm in size) presented polyhedral shape, and onion-like outer lattice structure, graphene-like interlattice spacing of 0.36 nm. CNOs showed blue emissions, moderate dispersibility in aqueous media, and high cell viability, which enables efficient fluorescence imaging of cellular media.
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