Compositions and methods of synthesizing near IR, closed chain, sulfo-cyanine dyes are provided.

Compositions and methods for visualizing tissue under illumination with fusion compounds of near-infrared radiation using near IR, closed chain, sulfo-cyanine dyes and prostate specific membrane antigen ligands are provided.

The present disclosure relates to compounds that are useful as near-infrared fluorescence probes, wherein the compounds include i) a ligand that binds to the active site of carbonic anhydrase, ii) a dye molecule, and iii) a linker molecule that comprises an amino acid, amide, ureido, or polyethylene glycol derivative thereof. The disclosure further describes methods and compositions for making and using the compounds, methods incorporating the compounds, and kits incorporating the compounds.

Hydrogels that degrade under appropriate conditions of pH and temperature by virtue of crosslinking compounds that cleave through an elimination reaction are described. The hydrogels may be used for delivery of various agents, such as pharmaceuticals.

Neurokinin-1 (NK-1) receptor-binding agent delivery conjugates, compositions comprising NK-1 receptor-binding agent delivery conjugates, and methods for making and administering NK-1 receptor-binding agent delivery conjugates are provided. A conjugate may include an NK-1 receptor-binding moiety, a linker group containing at least one linker selected from the group of a releasable linker and a spacer linker, and an active agent linked to the linker group. The active agent may be selected from the group of fluorophore-containing compounds, radionuclide-containing compounds, and therapeutic agents for treatment of tumor cells characterized by over-expression of the NK-1 receptor.

An active material for organic image sensors, where the active material is a squaraine-based active material or a thiophene-based active material. A photoelectric conversion layer containing the active material, which is a squaraine-based active material or a thiophene-based active material. An organic image sensor containing the photoelectric conversion layer containing the active material.

Provided herein are compounds that are able to bind metal ions (e.g., free metal ions or metal ions bound to low affinity ligands) in a sample or subject. Also provided herein are methods of using the compounds for chelating metal ions and for the treatment of diseases associated with abnormal levels of metal ions. Methods of preparing the compounds and pharmaceutical compositions are also provided.

Hydrogels that degrade under appropriate conditions of pH and temperature by virtue of crosslinking compounds that cleave through an elimination reaction are described. The hydrogels may be used for delivery of various agents, such as pharmaceuticals.

A method for organ imaging, comprising: administering to a subject a diagnostic effective amount of 2-((E)-2-((E)-3-(2-((E)-3,3-dimethyl-5-sulfonato-1-(4-sulfonatobutyl)indolin-2-ylidene)ethylidene)-2-phenoxycyclohex-1-en-1-yl)vinyl)-3,3-dimethyl-1-(4-sulfonatobutyl)-3H-indol-1-ium-5-sulfonate or 2-((E)-2-((E)-3-(2-((E)-3,3-dimethyl-5-sulfonato-1-(4-sulfonatobutyl)indolin-2-ylidene)ethylidene)-2-(4-sulfonatophenoxy)cyclohex-1-en-1-yl)vinyl)-3,3-dimethyl-1-(4-sulfonatobutyl)-3H-indol-1-ium-5-sulfonate. In one embodiment, the organ includes one or more of kidney, bladder, liver, gall bladder, spleen, intestine, heart, lungs and muscle.

The present disclosure relates to compounds that are useful as near-infrared fluorescence probes, wherein the compounds include i) a ligand that binds to the active site of carbonic anhydrase, ii) a dye molecule, and iii) a linker molecule that comprises an amino acid, amide, ureido, or polyethylene glycol derivative thereof. The disclosure further describes methods and compositions for making and using the compounds, methods incorporating the compounds, and kits incorporating the compounds.