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3 results about "Bacteriochlorophyll" patented technology

Bacteriochlorophylls (BChl) are photosynthetic pigments that occur in various phototrophic bacteria. They were discovered by C. B. van Niel in 1932. They are related to chlorophylls, which are the primary pigments in plants, algae, and cyanobacteria. Groups that contain bacteriochlorophyll conduct photosynthesis, but do not produce oxygen. They use wavelengths of light not absorbed by plants or Cyanobacteria. Replacement of Mg2+ with protons gives bacteriophaeophytin (BPh), the phaeophytin form.

A method for preparing core-shell structured mesoporous nanoparticles and their application in combined near-infrared photothermal and photodynamic antibacterial activity.

This invention belongs to the field of biomedical materials and nanotechnology, specifically relating to the synthesis and application of a multifunctional mesoporous nanomaterial. The inventors synthesized a core-shell structured mesoporous nanoparticle using mesoporous silica nanoparticles and dopamine via emulsion epitaxy. The core of the core-shell structured mesoporous nanoparticle is S-nitrosoglutathione supported on mesoporous silica, and the outer shell is pentafluorophenyl chlorophyll supported on mesoporous polydopamine, forming MSN / G@mPDA / F nanoparticles. These nanoparticles rapidly increase in temperature to 45°C under 808 nm laser irradiation. o At temperatures above a certain temperature, S-nitrosoglutathione decomposes to produce nitric oxide. Further irradiation at 750 nm generates a large amount of reactive oxygen species, killing bacteria. This combination of photothermal and photodynamic therapy effectively inhibits bacterial growth. Therefore, this method exhibits excellent antibacterial effects and can play a role in the future treatment of bacterial infections.
Owner:EAST CHINA UNIV OF SCI & TECH

Narrow emission dyes, compositions comprising same, and methods of making and using same

The present invention relates to narrow emission dyes, compositions comprising the same, and methods of making and using the same. In particular, the present application provides bacteriochlorin derivatives having narrow band emission. In some embodiments, the bacteriocin derivative is PEGylated. In some embodiments, the bacteriocin derivatives have a high water solubility (e.g., 10 mg / mL or more). In some embodiments, the bacteriocin derivatives are PEGylated and have a high water solubility. The bacteriocin derivatives may comprise a bioconjugatable group for forming a conjugate (e.g., with an antibody or nanoparticle). The bacteriocin derivatives and conjugates thereof are useful for imaging and therapeutic applications. Also provided are methods of synthesizing the bacteriocin derivatives.
Owner:NIRVANA SCIENCES INC

Small cationic ortho-5,15-di-heteroaryl-porphyrin derivatives and their applications in photoinactivation of microorganisms

The present invention relates to small cationic ortho-5,15-di-heteroaryl porphyrin derivatives, in particular porphyrins, chlorins or bacteriochlorin of formula (I) or pharmaceutically acceptable salts thereof.This invention also relates to the use of the above-mentioned cationic ortho-5,10-di-heteroaryl porphyrin derivatives of Formula (I) or a pharmaceutically acceptable salts thereof, in photodynamic inactivation of microorganisms, where the referred derivatives are able to treat the same in the presence of an adequate light.The present invention also describes pharmaceutical compositions comprising one or more of the cationic ortho-5,10-di-heteroaryl porphyrin derivatives, in particular prophyrins, chlorins or bacteriochlorins of Formula (I), or pharmaceutically acceptable salts thereof, for the treatment of bacterial and / or fungi and / or yeasts and / or viral infections, in humans or animals.
Owner:UNIVE DE COIMBRA