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.
초록· 키워드
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This paper presents a study into pH Indicator-Embedded hydrogel micro-particles which are encoded various shapes according to the captured indicator. We incorporate various pH indicators into a photo-curable hydrogel, PEG-DA(Poly(ethylene glycol) diacrylate). Using the latest fluidic lithography techniques, we can easily fabricate variously patterned hydrogel particles based on in-situ photopolymerization of the PEG-DA in a micro-fluidic channel. The shape of the particle is related to the pH indicator inside the particle. We demonstrate that the micro pH sensors change their colors according to the pH levels. The micro pH sensors have various characteristics that are related to the curing time, particle size, etc. By changing these conditions, we can adjust the long term stability and reaction time of the hybrid micro pH sensors.
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참고문헌 (9)
참고문헌 신청
D. Dendukuri / 2006 / Continuous-flow lithography for high-throughput microparticle synthesis / Nature Materials 5 (5) : 365 ~ 369
G. M. Whitesides / 2001 / Soft lithography in biology and biochemistry / Annual Review of Biomedical Engineering 3 : 335 ~ 373
Go Nishimura / 2005 / A fluorescent chemosensor for wide-range pHdetection / Chem. Commun 42 : 5313 ~ 5315
H. Maruyama / 2008 / On-chip pH measurement using functionalized gel-microbeads positioned by optical tweezers / Lab Chip 8 (2) : 346 ~ 351
Kyosuke Shinohara / 2004 / Measurement of pH field of chemically reacting flowin microfluidic devices by laser-induced fluorescence / Meas. Sci. Technol 15 (5) : 955 ~ 960
G. M. Whitesides / 2001 / Soft lithography in biology and biochemistry / Annual Review of Biomedical Engineering 3 : 335 ~ 373
Go Nishimura / 2005 / A fluorescent chemosensor for wide-range pHdetection / Chem. Commun 42 : 5313 ~ 5315
H. Maruyama / 2008 / On-chip pH measurement using functionalized gel-microbeads positioned by optical tweezers / Lab Chip 8 (2) : 346 ~ 351
Kyosuke Shinohara / 2004 / Measurement of pH field of chemically reacting flowin microfluidic devices by laser-induced fluorescence / Meas. Sci. Technol 15 (5) : 955 ~ 960
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