VIOLET LASER EXCITABLE DYES AND THEIR METHOD OF USE
申请人:LIFE TECHNOLOGIES CORPORATION
公开号:US20160355682A1
公开(公告)日:2016-12-08
The present invention provides dye compounds optimally excited at about 400 nm and have a Stokes shift of at least about 80 nm. These dyes find use in detection of analyte in a sample and the preparation of dye-conjugates.
Method and apparatus using a surface-selective nonlinear optical technique for detection of probe-target interactions without labels
申请人:——
公开号:US20020127563A1
公开(公告)日:2002-09-12
A surface-selective nonlinear optical technique, such as second harmonic or sum frequency generation, is used to detect target-probe binding reactions or their effects, at an interface, without the use of labels. In addition, the direction of the nonlinear light is scattered from the interface in a well-defined direction and therefore its incidence at a detector some distance from the interface may be easily mapped to a specific and known location at the interface.
Method using a nonlinear optical technique for detection of interactions involving a conformational change
申请人:——
公开号:US20030148391A1
公开(公告)日:2003-08-07
A nonlinear optical technique, such as second or third harmonic or sum or difference frequency generation, is used to detect binding interactions, or the degree or extent of binding, that comprise a conformational change. In one aspect of the present invention, the nonlinear optical technique detects a conformational change in a probe due to target binding. In another aspect of the invention, the nonlinear optical technique screens candidate probes by detecting a conformational change due to a probe-target interaction. In another aspect of the invention, the nonlinear optical technique screens candidate modulators of a probe-target interaction by detecting a conformational change in the presence of the modulator.
Design of labels for detection with a surface-seletive nonlinear optical technique
申请人:——
公开号:US20040146460A1
公开(公告)日:2004-07-29
Second harmonic, sum and difference frequency generation can be used to detect a variety of processes, which are otherwise undetectable, using nonlinear-active labels. The labels must have as high a hyperpolarizability as possible. Several designs for large hyperpolarizability second-harmonic active labels are described herein. These labels can be attached to any target molecule or particle, resulting in more highly nonlinear-optically active targets.