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플라즈모닉 금 나노입자의 흡광 특성을 활용한 생화학적 비색 분석법 연구 동향
김봉근 ( Bong-geun Kim ),윤상빈 ( Sang Bin Yoon ),황수경 ( Sukyeong Hwang ),나현빈 ( Hyon Bin Na ) 한국공업화학회 2024 공업화학 Vol.35 No.2
흡광은 측정이 간편하고 해석의 직관성이 높다는 점에서 생화학 기반 분석법의 신호로서 강점을 가진다. 흡광을 가지는 물질 중에서 금 나노입자는 화학적 안정성, 생물학적 친화성, 가시광선 범위에서 야기되는 국소 표면 플라즈몬 공명(localized surface plasmon resonance, LSPR)에 의한 독특한 광학적 특성 등의 유용한 성질을 지니며, 특정 표적 물질에만 유효한 다른 발색물질과 비교해 항체나 압타머 등 다양한 검출 활성물질과 접합이 용이하여 확장성을 가진다. 특히, 기질의 산화로 발색을 야기하는 효소 기반 발색법에 비해 낮은 가격, 쉬운 입자 합성, 높은 환경안정성 등의 장점으로 인해 비색화 분석법의 신호물질로서 광범위하게 연구되고 있다. 본 총설에서는 이와 같은 금 나노입자를 신호물질로 활용하는 다양한 전략을 최근의 연구들을 중심으로 요약 정리하였으며, 입자의 형태에 광학 특성이 영향을 받는 금 나노입자의 특징에 착안하여 신호생성 시에 활용한 금 나노입자의 형태 제어 전략을 기준으로 문헌들을 분류하고 검토하였다. 이를 통해 이미 오랜 기간 활용되어온 금 나노입자가 현재에도 흡광 신호물질로서 여전히 활발하게 연구되고 있다는 사실을 고찰하고, 향후에도 광범위하고 지속적으로 개선될 여지를 가진다는 점을 확인하였다. Light absorption has potential as a signal in biochemical analyses due to its simplicity in measurement and interpretational clarity. Among substances that generate absorption signals, gold nanoparticles possess advantages such as chemical stability, biological compatibility, and unique optical properties from the localized surface plasmon resonance (LSPR) in the visible light range. They also exhibit versatility compared to other colorimetric substances effective only for specific target molecules, as they easily conjugate with various detection active substances like antibodies and aptamers. Particularly due to advantages such as low cost, ease of particle synthesis, and high environmental stability compared to enzyme-based colorimetric methods, gold nanoparticles are extensively researched as signal substances in colorimetric assays. This review summarizes various strategies utilizing gold nanoparticles as absorption signal substances, focusing on recent research. Based on the characteristics of gold nanoparticles, where the optical property is influenced by particle morphology, literature is classified and reviewed based on strategies controlling the shape of gold nanoparticles during signal generation. Through this, it is observed that gold nanoparticles, which have been used as absorption signal substances, continue to be actively researched, affirming their potential for broad and continuous improvement in the future.
윤대환 ( Daehwan Youn ),박상빈 ( Sangbin Park ),신영일 ( Yeong Il Sheen ),이남구 ( Namgu Lee ),나창수 ( Changsu Na ) 경락경혈학회 2015 Korean Journal of Acupuncture Vol.32 No.2
Objectives : The purpose of this study is to investigate acupoints that appear in ancient records and use with regard to treatment to the wheezing and dyspnea. Methods : We investigated 10 ancient records from Song Dynasty to the Qing Dynasty that had medical references to wheezing and dyspnea. Results and Conclusions : Out of acupoints that found out to be used for treatment of wheezing and dyspnea in this study, Conception and Governor channels account for 38.9%, the three yang meridians of the foot account for 22.2% and the three tin meridians of the Hand account for 13.9%. In 10 ancient records, CV22(Tian tu) appears 5 times, CV12(Zhongwan) and ST36(Zusanli) appear 4times. A total number of acupoints that appear in the ancient records were 35. In compendium of medicine, the number of acupoints was 21. In cmpendium of acupuncture and moxibustion, the number of acupoints was 10. In the treatment of wheezing and dyspnea, not only acupuncture but also moxibustion has a great importance.