119th General Meeting of the KCS

Type Poster Presentation
Area 생명화학
Room No. 포스터발표장
Time 4월 21일 (금요일) 13:00~14:30
Code BIO.P-294
Subject Fluorescent Carbon dots using Bisphosphonate derivatives for Bioimaging
Authors 이경관, 이순혁1, 박철순2, 이창수3,*
한국생명공학연구원(KRIBB) 위해요소감지BNT연구단, Korea
1과학기술연합대학원대학교(UST) 나노바이오공학과, Korea
2전남대학교 대학원 고분자공학과, Korea
3한국생명공학연구원 바이오나노연구센터, Korea
Abstract Abstract We synthesized hydrothermally water-soluble BP-CDs(Bisphosphonate-based carbon dots) using commercial osteoporosis medicines such as Alendronate, Zoledronate, Ibandronate and Risedronate. BPs are used for osteoporosis treatment clinically and are good candidates as a bone-imaging agent because of high affinity for hydroxyapatite. CDs were made from BP derivatives as the source of carbon and 1,2-ethylenediamine as the surface passivation agent. We confirmed that they exhibited the highest fluorescence intensity at 400nm and good photo stability. Due to superior biocompatibility, BP-CDs were imaging in living HeLa cells, which indicated that it is applicable in various fields of bioimaging. The high affinity of BP-CDs for hydroxyapatite also were verified through α-TCP(Tricalcium phosphate) scaffold incubated in BP-CDs solution. As new fluorescent carbon material, advantages of BP-CDs include strong fluorescence, water solubility, low cytotoxicity and high affinity for hydroxyapatite. They are suitable candidates for the applications in the bioimaging field.
E-mail leepk812@naver.com