| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
포스터_생물공학 |
| 제목 |
Coordination between aminofluorescein and long emission wavelength fluorescent dyes for fabrication of ratiometric fluorescent pH sensors |
| 초록 |
Aminofluorescein (AF) is a fluorescent dye with high quantum yield and pH sensitivity so that AF is commonly used for pH detection. However, in the area of fluorescence-based sensors, measurements of fluorescence intensity at a single band edge are known to be problematic in practical applications. The use of ratiometric fluorescence method is a useful solution for correction of a variety of analyte-independent factors in fluorescent sensors. Therefore, AF and other referent fluorescent dyes (e.g. ruthenium (Ru), sulforhodamine 101 (S101)) with long emission wavelengths are doped into melamine formaldehyde resin particles to prevent leaking dyes. The dyes are incorporated with the mixture of sol-gel (GA) and polyurethane hydrogel (PU) for fabrication of pH-sensing membranes. These membranes show high sensitivity, selectivity, reversibility and stability in a wide pH detection range (pH5-pH11). |
| 저자 |
이종일1, Hong Dinh Duong1, Yeajin Park1, Chang Hwan Jung2, Ok-Jae Sohn1, Chanhee Jung1
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| 소속 |
1Chonnam National Univ., 2Jointree Co. |
| 키워드 |
Aminofluorescein; ratiometric fluorescent pH sensor; melamine formaldehyde resin particles; sol-gel; polyurethane hydrogel
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| E-Mail |
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