The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 22, 2015

Filed:

Jul. 27, 2007
Applicants:

Nikolay E. Nifantiev, Moscow, RU;

Burkhard Gitter, Jena, DE;

Dmitri V. Yashunsky, Moscow, RU;

Inventors:

Nikolay E. Nifantiev, Moscow, RU;

Burkhard Gitter, Jena, DE;

Dmitri V. Yashunsky, Moscow, RU;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/407 (2006.01); A61K 47/48 (2006.01); A61K 41/00 (2006.01);
U.S. Cl.
CPC ...
A61K 31/407 (2013.01); A61K 41/0071 (2013.01); A61K 47/48246 (2013.01);
Abstract

Antimicrobial molecular conjugates for the treatment and prevention of infectious diseases caused by pathogenic microorganisms in human and animals are provided. The key to these conjugates is a special spacer connecting at least one photosensitizer to a microorganism receptor (vector) which in turn binds selectively to the surface of a microorganism bringing about photo-destruction upon irradiation. Spacers having hydrophilic structure such as ethylene glycol units and amino carboxyl end capped ethylene glycol units must be used for linking the vector to the photosensitizer. In a preferred embodiment a spacer would have at least 3 ethylene glycol units and be end capped with a carboxyl group on one end and a amino group at the other end. The present invention effectively works to combat bacterial infection in the real patient-related environments where blood, serum and other body fluids are always present or at least nearby. Spacers of selected length and structure, in preferred embodiments, are used for linking the vector to the photosensitizer. These conjugate are found to be very effective in combating bacterial infection in the real patient-related environments where blood, serum and other body fluids are always present or a least nearby. A method of use is also provided.


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