| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
22권 2호 |
| 발표분야 |
생체재료_포스터 |
| 제목 |
Water-soluble multi-shell quantum dot with high quantum yield and stability in various pH condition |
| 초록 |
Compared with a traditional fluorescent dye, semiconductor quantum dots (QDs) have many advantages and benefits, such as high fluorescent signal, high quantum yield (QY), photo-stability and narrow emission spectrum. As a result, QDs are widely used to conjugate with many biomaterials. However, a toxicity of QDs limits its application in biology. To prevent the toxicity, QDs were normally encapsulated with silica shell. However, QY of QDs is getting significantly lower after coating with silica layer. To solve this problem, we developed the water-soluble multi shell QDs maintaining its high QY even though its surface was coated by silica layer. Compared to single shell QDs, multi-shell QDs show a strong fluorescence intensity and high stability in various pH range (pH 2 – 7). In addition, QY of multi-shell QDs after surface modification is slightly reduced. Therefore, this water-soluble multi shell QDs have a great potential practically for bio-imaging. |
| 저자 |
강은지1, 황도원2, 정흥수3, 함은일1, 김형모1, 하유나1, 김태한1, 이동수2, 전봉현1
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| 소속 |
1건국대, 2서울대, 3(주)제우스 |
| 키워드 |
Water-soluble QDs; high quantum yield QDs
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| E-Mail |
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