Disclosed is a fluorescent conjugate comprising a biological reagent, a fluorescent molecule, and a means for impeding phototoxic degradation of the biological reagent. The impeding means can be a cross-linking substance having a long molecular distance, whereby the cross-linking substance links the fluorescent molecule and the biological reagent; a quencher of singlet oxygen; a quencher of a free radical; or a combination thereof. Also disclosed is a solution comprising a fluorescent conjugate of a biological reagent and a fluorescent molecule together with an oxygen depleting system.
本发明公开了一种荧光共轭物,它包括一种
生物试剂、一种荧光分子和一种阻碍
生物试剂光毒性降解的手段。阻碍手段可以是具有长分子间距的交联物质,交联物质可将荧光分子和
生物试剂连接起来;单线态
氧淬灭剂;自由基淬灭剂;或它们的组合。还公开了一种溶液,它包含
生物试剂和荧光分子的荧光共轭物以及耗
氧系统。