申请人:Dai Lijun
公开号:US20150031046A1
公开(公告)日:2015-01-29
A bioanalytical reagent used in a heterogeneous phase and a usage method thereof are provided to increase the signal intensity from the bioanalytical reagent. The bioanalytical reagent includes a target detector and a signal generator. The signal generator is represented by the following formula: (p1)
y
-(a trigger)
z
-(LS)
N
-a degradable polymer coupled with a contrast agent in latent state via covalent bonds-p
2
, wherein p1 is a protecting group for the end group of the trigger, LS is a self-immolative linker or spacer, p2 is a protecting group for the end group of the degradable polymer, y is 0 or 1, and Z, N are non-negative integer. The signal generator is in a latent state during wash and separation procedures, until an inducing matter or a condition, which excites the contrast agent from a latent state to an active state, is added or applied into the analysis system after the separation procedure so as to degrade directly the polymer or to stimulate the triggers in sequence before degrading the polymer. As a result, the detection signal is excited or its intensity is remarkably increased. The bioanalytical reagent used in a heterogeneous phase has high sensitivity and good stability. The bioanalytical reagent used in a heterogeneous phase is employed simply and exactly.