Isothiocyanate-polyethylene glycol-mercapto-pyridine FITC-PEG-OPSS MW:5000 Chemical cross-linking Disulfide bonding Surface modification Fluorescent sensor

FITC-PEG-OPSS is a chemical cross-linking and modification compound consisting of FITC (fluorescent isotope cell), PEG (polyethylene glycol), and OPSS (Ortho-pyridyldisulfide).FITC-PEG-OPSS has a wide range of applications in the fields of chemical synthesis and materials science.

A common application is chemical cross-linking using FITC-PEG-OPSS, which can react with molecules containing thiol groups to form disulfide bonds, thereby cross-linking different molecules or materials together. This cross-linking can be used to build chemically oriented self-assembled structures. As an example, researchers can use FITC-PEG-OPSS to crosslink DNA molecules containing thiol groups to build DNA nanostructures for gene delivery or nanomaterial preparation.

Another application is surface modification using FITC-PEG-OPSS, which can react with thiol groups on the surface of the material to immobilize functional molecules or fluorescent dyes on the surface. This modification can be used to prepare nanoparticles or thin-film materials with specific properties. As an example, researchers can react FITC-PEG-OPSS with thiol groups on the surface of nanoparticles to immobilize fluorescent dyes on the nanoparticles, thereby preparing nanoparticles with fluorescent labeling for biosensing or fluorescent imaging applications.

In addition, FITC-PEG-OPSS can be used to prepare fluorescent sensors. By binding it to specific biomolecules, its fluorescent properties can be utilized to detect the presence and concentration changes of the target molecules. For example, researchers can bind FITC-PEG-OPSS to specific antibodies to form fluorescently labeled antibodies that can be used to detect the presence of specific antigens.

In summary, FITC-PEG-OPSS has a wide range of applications in chemical synthesis and materials science, including chemical cross-linking, surface modification and fluorescent sensor preparation. These applications can help researchers construct chemically oriented self-assembled structures, customize materials with specific properties, and achieve research goals such as detection and imaging of target molecules.