[EN] HYDROGEN PEROXIDE SENSORS BASED UPON PHOTO-INDUCED ELECTRON TRANSFER<br/>[FR] DÉTECTEURS DE PEROXYDE D’HYDROGÈNE BASÉS SUR LE TRANSFERT D’ÉLECTRONS PAR PHOTO-INDUCTION
申请人:OPTI MEDICAL SYSTEMS
公开号:WO2011011605A1
公开(公告)日:2011-01-27
The invention provides compounds of formula I F-L-Q (I) where F comprises a fluorophore capable of absorbing energy at an excitation wavelength and, in the absence of a quencher, emitting energy at an emission wavelength, which is different than the excitation wavelength; Q comprises a quencher; L comprises a linker moiety having two ends, one end being covalently bound to F and the other end being covalently bound to Q. The compounds are capable of undergoing a reversible reaction (1), provided below: (1) where Q+ is an oxidized form of Q representing the absence of a quencher, Ox comprises an oxidizing agent, which is capable of oxidizing Q to its oxidized form Q, and Red comprises a reducing agent, which is capable of converting Q back to its reduced form Q. The compounds can undergo photo-induced electron transfer when irradiated with energy and when Q exists in its oxidized form, Q+. The invention also provides methods of detecting and determining the presence of analytes and/or hydrogen peroxide in a sample, as well as a substrate that comprises the compound of formula I.
该发明提供了I式化合物F-L-Q(I),其中F包括一种荧光团,能够在激发波长吸收能量,并在缺乏淬灭剂的情况下,在发射波长发射能量,该发射波长不同于激发波长;Q包括一种淬灭剂;L包括一个连接基团,具有两个末端,其中一个末端与F共价结合,另一个末端与Q共价结合。这些化合物能够进行可逆反应(1),如下所示:(1)其中Q +是Q的氧化形式,表示没有淬灭剂,Ox包括一种氧化剂,能够将Q氧化为其氧化形式Q,而Red包括一种还原剂,能够将Q转化回其还原形式Q。当受到能量辐射并且Q存在于其氧化形式Q +时,这些化合物可以进行光诱导电子转移。该发明还提供了检测和确定样品中分析物和/或过氧化氢存在的方法,以及包含I式化合物的基板。