4 results about "Rhodamine derivative" patented technology

This invention discloses a highly sensitive intelligent color-changing textile fiber and its preparation method, belonging to the field of materials. The preparation method includes the following steps: S1: The fiber is impregnated in a color-changing coating solution and then subjected to a first-stage photoinitiated polymerization; the color-changing coating solution is formulated by combining a mechanosensitive group with a vinyl monomer; the mechanosensitive group is a rhodamine derivative mechanosensitive group; S2: The fiber obtained in S1 is subjected to multi-stage impregnation-photoinitiated polymerization in a swelling solution to obtain the intelligent color-changing textile fiber; the swelling solution is formulated by combining a vinyl monomer and a crosslinking agent. This invention has advantages such as highly sensitive intelligent color changing.

This invention discloses a highly selective copper ion ratiometric fluorescent probe based on a rhodamine derivative, its preparation method, and its applications, belonging to the field of fluorescent probes. Specifically, the probe of this invention can be used to measure, detect, or screen copper ions, achieving selective recognition of copper ions with strong anti-interference capabilities; it enables rapid and highly sensitive analysis of copper ions; it has colorimetric capabilities, thus facilitating visual detection of copper ions; it is a ratiometric fluorescent probe, eliminating the influence of various environmentally irrelevant factors and improving its sensitivity; it has low cytotoxicity, which is beneficial for application under physiological conditions; and it also has the advantages of simple synthesis, stable properties, and commercial application.

This invention discloses a fluorescent probe for detecting peroxynitrite in living cells and its synthesis method. The fluorescent probe comprises an amphiphilic group, 4-amino-2-methoxyphenol as a recognition unit, and a rhodamine derivative fluorophore, wherein the recognition unit can interact with ONOO. ‑ A specific oxidation reaction occurs, causing significant changes in fluorescence intensity and emission wavelength, thereby enabling real-time imaging and quantitative analysis of peroxynitrite in the cellular microenvironment. The fluorescent probe of this invention possesses high selectivity, strong anti-interference capabilities, and rapid response, making it suitable for the detection of ONOO at the live-cell level. ‑ Dynamic observation.