55 results about "Electron delocalization" patented technology

The present invention relates to fluorescent dyes. The present invention provides a wide range of fluorescent dyes and kits containing the same, which are applicable for labeling a variety of biomolecules, cells and microorganisms. In one aspect, the invention provides a compound having a maximal fluorescence excitation wavelength, wherein the compound has a structure of Formula II:F—Y=Ψ  Formula IIand wherein Z— is a counterion, Y is a bridge unit permitting electron delocalization between F and Ψ, and F is a moiety having the structure:The present invention also provides various methods of using the fluorescent dyes for research and development, forensic identification, environmental studies, diagnosis, prognosis, and / or treatment of disease conditions.

The invention discloses a bipyridine bisthiophene blue fluorescent material. The fluorescent material is a bisthiophene organic compound double-sidedly coupled with pyridine, and its name is 5,5'-bis(pyridine-3-yl)-2 ,2′‑Bithiophene, the molecular formula is C 18 h 12 N 2 S 2 , the crystal system is monoclinic, the space group is P2(1) / n, the unit cell parameters α=γ=90°, β=103.20°. The blue fluorescent material has a clear spatial structure and accurate molecular formula, the synthesis steps are simple, and the reaction conditions are mild. After introducing pyridine groups at the 5-position on both sides of bithiophene, the degree of electronic delocalization is increased, and the blue fluorescent material is enhanced. The luminous performance of the material improves the stability and solubility of the material, and it has potential application prospects as a fluorescent material.

The invention provides a preparation method of a flexible elastic stress sensing conductive film and belongs to the technical field of conductive materials. According to the preparation method of theinvention, metal conductive nanoparticles are modified, so that the metal conductive nanoparticles can be uniformly dispersed in a polymer material, and the load capacity of the metal conductive nanoparticles is increased. The film provided by the invention combines the conductivity of the metal conductive nanomaterial and the flexibility of the polymer material; when the film is subjected to tensile and compressive stress, the polymer material is deformed, and therefore, the nano conductive particles move, electron delocalization occurs, and the conductivity of the film changes, and as a result, a piezoresistive effect can be directly measured according to the magnitude of the deformation. In the light of experimental data in the embodiments of the present invention, the load capacity ofthe metal conductive nanoparticles in the polymer material can reach 45%.