44results about How to "Good spectral properties" patented technology

A germanium tellurate glass for double-clad optical fiber and a method for preparing the optical fiber thereof. The germanium tellurate glass for double-clad optical fiber, including thulium-doped core glass, inner cladding glass and outer cladding glass, is prepared by a stacking method. An optical fiber preform with a hexagonal inner cladding is drawn into an optical fiber at one time in a drawing tower, and then drawn into a double-clad optical fiber with a hexagonal inner cladding. The fiber combines the advantages of germanate glass and tellurate glass, and the glass contains Al 2 o 3 , the glass has good thermal properties and excellent spectral properties; the fiber core is doped with thulium, which can achieve ~2μm laser output.

The invention discloses silicon phthalocyanine axially modified by aminoethyl phenoxyl and polyethylene glycol oligomer as well as a preparation method and application of silicon phthalocyanine, belonging to the field of preparation of photodynamic medicaments or photosensitizers. The silicon phthalocyanine provided by the invention can be used as a photosensitizer for photodynamic treatment, photodynamic diagnosis or photodynamic sterilization, has the structural characteristic of axially asymmetrical substitution and shows favorable amphipathy and extremely high photodynamic activity.

The invention discloses a silicon phthalocyanine asymmetrically modified by axial nucleosides, a preparation method and application thereof, and belongs to the field of preparation of photodynamic drugs or photosensitizers. The axial nucleoside asymmetrically modified silicon phthalocyanine provided by the present invention can be used as a photosensitizer for photodynamic therapy, photodynamic diagnosis or photodynamic disinfection. It has the structural characteristics of axial asymmetric substitution and shows good amphiphile and high photodynamic activity.

The present invention provides several application of non-peripheral substituted phthalocyanine metal coordination compound. The invented phthalocyanine metal coordination compound has the applicationfor preparing photosensitive medicine preparation which can be used in photodynamic therapy or photodynamic diagnosis, and has the application for preparing photosensitizer which can be used in photodynamic purification or disinfection. Besides, it can be used as fluorescence probe or can be used for determining protein content.

The invention relates to a method for preparing a Y2O3:Tb<3+>@SiO2-NH2 fluorescence sensor array used for detecting an organic chlorine pesticide. The marking recognition sites in the fluorescence sensor array are mutually effected with organic chlorine pesticide molecules (target molecules), the target molecules and Tb<3+> on the recognition sites form an organic ligand through coordination, and change of the fluorescence intensity of Tb<3+> is used for detecting the target molecules. The method comprises the following three steps: preparing Y2O3:Tb<3+> fluorescent powder, then synthesizing a Y2O3:Tb<3+>@SiO2-NH2 fluorescence probe having capability for identifying the marking target molecules, finally, through a micromachining technology and a plasma etching method, dropping the fluid suspension of the fluorescence probe having the capability for identifying the marking target molecules on a silicon chip, naturally drying the silicon chip, and spontaneously putting the fluorescence probe materials in a micro hole to obtain the fluorescence sensor array for high-selectivity identification and high sensitive signal detection on the target molecules.

The invention discloses an octa-sulfonic phthalocyanine metal complex, and a preparation method and application thereof, and belongs to photosensitizers, photodynamic medicines or photosensitive agents. The compound disclosed by the invention has the characteristics of high photosensitive activity and high water solubility; the compound exists in water in the form of monomers and is favorable to play the photodynamic activity in a water body; the absorption spectroscopy is red-shifted to a near infrared area which facilitates the penetration of human tissues.