材料导报
材料導報
재료도보
MATERIALS REVIEW
2015年
13期
49-57
,共9页
传感机制%激发态分子内质子转移%化学传感器%比率荧光
傳感機製%激髮態分子內質子轉移%化學傳感器%比率熒光
전감궤제%격발태분자내질자전이%화학전감기%비솔형광
sensing mechanism%excited-state intramolecular proton transfer%chemosensor%ratiometric fluo-rescence
荧光传感器具有灵敏度高、专一性强、样品处理简易及操作过程方便、响应速度快、可用于体内和体外成像研究等优点,颇受人们的青睐。在新型荧光传感器的设计中,传感器识别单元与信号报告单元之间的传感机制一直受到人们的广泛关注。随着超分子科学的发展,一些新型的传感机制被应用于传感器的设计中。其中,基于激发态分子内质子转移(ESIPT)机理的荧光传感器通常具有发光强、斯托克斯位移较大、光稳定性好等优异特性,表现出良好的传感性能。综述了 ESIPT 这种新型的荧光传感机制的研究进展,包括此传感机制的基本原理,其在荧光传感器设计中的应用,并展望了该领域的发展趋势。
熒光傳感器具有靈敏度高、專一性彊、樣品處理簡易及操作過程方便、響應速度快、可用于體內和體外成像研究等優點,頗受人們的青睞。在新型熒光傳感器的設計中,傳感器識彆單元與信號報告單元之間的傳感機製一直受到人們的廣汎關註。隨著超分子科學的髮展,一些新型的傳感機製被應用于傳感器的設計中。其中,基于激髮態分子內質子轉移(ESIPT)機理的熒光傳感器通常具有髮光彊、斯託剋斯位移較大、光穩定性好等優異特性,錶現齣良好的傳感性能。綜述瞭 ESIPT 這種新型的熒光傳感機製的研究進展,包括此傳感機製的基本原理,其在熒光傳感器設計中的應用,併展望瞭該領域的髮展趨勢。
형광전감기구유령민도고、전일성강、양품처리간역급조작과정방편、향응속도쾌、가용우체내화체외성상연구등우점,파수인문적청래。재신형형광전감기적설계중,전감기식별단원여신호보고단원지간적전감궤제일직수도인문적엄범관주。수착초분자과학적발전,일사신형적전감궤제피응용우전감기적설계중。기중,기우격발태분자내질자전이(ESIPT)궤리적형광전감기통상구유발광강、사탁극사위이교대、광은정성호등우이특성,표현출량호적전감성능。종술료 ESIPT 저충신형적형광전감궤제적연구진전,포괄차전감궤제적기본원리,기재형광전감기설계중적응용,병전망료해영역적발전추세。
Fluorescent probes are gaining more and more attention because of their high sensitivity,specificity, simplicity of implementation,and fast response times,offering application methods not only for in vitro assays but al-so for in vivo imaging studies.In terms of the design of novel fluorescent chemosensor,the exploration of new mecha-nisms of interaction between recognition and signal reporting units acquires continuing interest.With the rapid deve-lopment of supramolecular chemistry,a variety of new design principles have been applied in fluorescent sensing re-cently.Among these new emerging signaling mechanisms,excited-state intramolecular proton transfer (ESIPT)-based fluorescent probes generally display excellent sensing performance for the virtues of intense luminescence,large Stokes shifts as well as good photostability.Herein,the research progress in this novel signaling approach is summarized,in-cluding the sensing mechanism,its application in the design of chemosensors as well as the development trend.