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Fluorescent hydrogels for sensing and manipulation of fluorescence
이택승,김용균,남궁호 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.1
The glucose level is an important issue for the patients with diabetes, and thus the selective and efficient detection of glucose is critical. An effective, reversible, and reusable probe for glucose monitoring still remains a challenge. A new hydrogel sensor based on a copolymer was developed. The copolymer consisted of fluorescent monomers of fluorescein and rhodamine B with a backbone of acrylamide or N-isopropylacrylamide, in which glucose oxidase (GOx) was immobilized on the resultant hydrogel and showed effective fluorescence-sensing performance toward glucose. Upon exposure to glucose, the sensing hydrogel induced visual changes in fluorescence colors that could be identified by the naked-eye. This work provides a facile and promising strategy for constructing a stable, naked-eye-detectable optical protocol that offers sensor reusability for glucose detection.
이택승,손동헌 대한약학회 1979 약학회지 Vol.23 No.1
The total mercury content in the head hair of 87 dental personnel and 210 Seoul citizens as control was determined. 1) The mean value of mercury content in dentists (8.57ppm) was 3.3 times of Seoul male citizens (2.57ppm) and the median of the former (5.92 ppm) was higher than that of the latter (2.39ppm) by approximately 2.5 times. 2) The mean value of mercury content in dental nurses (5.79ppm) was 2.8 times of Seoul female citizens(2.11ppm) and the median of the former(4.62ppm) was higher than that of the latter (1.86ppm) by approximately 2.5 times. 3) The mean value of mercury content in Seoul citizens was 2.29ppm and the median was 1.98ppm. 4) There was no correlationship between the mercury content in the head hair of dentists and the length of dental surgery experience or the frequency of amalgam fiillings per day. 5) The mercury content of Seoul citizens was higher in the male than in the female. 6) It appears more meaningful to employ median values than mean values when the environmental pollution is considered.