The present invention provides a nanoparticle comprising: a core comprising a metal and/or a semiconductor; and a plurality of ligands covalently linked to the core, wherein said ligands comprise: (i) at least one dilution ligand comprising a carbohydrate, glutathione or an ethylene glycol-containing moiety; and (ii) a ligand of the formula D-L.sub.1-Z-L.sub.2, wherein D comprises an antifolate drug or folic acid, L.sub.1 comprises a first linker portion comprising a C2-C12 glycol and/or C2-C12 alkyl chain, L.sub.2 comprises a second linker portion comprising a C2-C12 glycol and/or C2-C12 alkyl chain, wherein L.sub.1 and L.sub.2 may be the same or different, and wherein Z represents a carbonyl-containing group linking L.sub.1 and L.sub.2, and wherein L.sub.2 is coupled to said core. Also provided are pharmaceutical compositions comprising such nanoparticles, medical uses thereof and methods for producing the nanoparticles.

The present invention provides a composition of nanoparticles comprising a biological mimetic base component that forms the structure of the nanoparticle. By interacting with the functional groups of the base component, the half-life of a bioactive molecule is extended.

The present invention provides the design of a class of prodrugs for self-assembly into therapeutic tubular supramolecular polymers and their use in a wide variety of applications. The therapeutic tubular supramolecular polymers can be used to formulate drugs and imaging agents for in vitro and in vivo uses.

Described herein are drug delivery systems for delivering biologically active agents comprising primary or secondary amines, or a ring nitrogen atom of an azaheteroaryl ring, pharmaceutically acceptable salts thereof, drug delivery reagents related thereto, pharmaceutical compositions comprising the drug delivery systems, and the use of the drug delivery systems as sustained release therapeutics.

The invention is directed to a composition of metal particles and methods of manufacturing and using the composition in the treatment of microbial infections and cancer. The particles can be nanoparticles having coupled thereto at least one of a surfactant, an antibiotic, and a drug. The particles of the invention achieve enhanced stability, enhanced cytotoxicity, and enhanced antimicrobial activity through novel combinations of metals, surfactants, antibiotics, and drugs.

The present invention relates to the treatment of ocular diseases in a human subject In particular, the invention relates to an intracameral administration of a sustained release biodegradable intracameral implant.

The invention relates generally to methods of using a thiol-Michael addition hydrogel for providing intracavitary brachytherapy and/or displacing tissue and organs. The thiol-Michael addition hydrogel may be used as a packing material and an attenuation material for intracavitary brachytherapy applications. The invention also relates generally to a brachytherapy applicator, which may be used in conjunction with the thiol-Michael addition hydrogel and methods thereof. The invention also relates to a positioning device system for providing intracavitary brachytherapy treatment and a kit thereof.

The present disclosure provides bioorthogonal compositions for delivering agents in a subject. The disclosure also provides methods of producing the compositions, as well as methods of using the same.

Disclosed are biodegradable nanocarriers that have a net positive surface charge and zeta potential between about +2 to about +20 mV. The positive surface charge of the nanocarriers is provided by peptides that are covalently attached to the surface of the nanocarriers. The nanocarriers may comprise a drug and may be administered for localized and sustained delivery of the drug.

Aspects of the invention described herein include a hydrogel prodrug and methods of making a hydrogel prodrug for drug delivery. Also contemplated are methods of treating, inhibiting, ameliorating or inhibiting a disease or disorder. Without being limiting, the methods for treatment can be directed to a cancer, HIV, a virus, pain, a bacterial infection, a neurological disorder, hemorrhaging, multiple sclerosis, diabetes, high blood pressure, Alzheimer's, or inhibiting a fungal growth in a subject in need.