摘要:
Nanoparticles, methods of preparation thereof, and methods of detecting a target molecule using embodiments of the nanoparticle, are disclosed. One embodiment of an exemplary nanoparticle, among others, includes a surface-enhanced Raman spectroscopic active composite nanostructure. The surface-enhanced Raman spectroscopic active composite nanostructure includes a core, at least one reporter molecule, and an encapsulating material. The reporter molecule is bonded to the core. The reporter molecule is selected from: an isothiocyanate dye, a multi-sulfur organic dye, a multi-heterosulfur organic dye, a benzotriazole dye, and combinations thereof. The encapsulating material is disposed over the core and the reporter molecule. After encapsulation with the encapsulating material, the reporter molecule has a measurable surface-enhanced Raman spectroscopic signature.
摘要:
Nanoparticles, methods of preparation thereof, and methods of detecting a target molecule using embodiments of the nanoparticle, are disclosed. One embodiment of an exemplary nanoparticle, among others, includes a surface-enhanced Raman spectroscopic active composite nanostructure. The surface-enhanced Raman spectroscopic active composite nanostructure includes a core, at least one reporter molecule, and an encapsulating material. The reporter molecule is bonded to the core. The reporter molecule is selected from: an isothiocyanate dye, a multi-sulfur organic dye, a multi-heterosulfur organic dye, a benzotriazole dye, and combinations thereof The encapsulating material is disposed over the core and the reporter molecule. After encapsulation with the encapsulating material, the reporter molecule has a measurable surface-enhanced Raman spectroscopic signature.
摘要:
A nanostructure and methods of synthesizing same. In one embodiment, the nanostructure includes a magnetic iron oxide nanoparticle, a hydrophobic protection structure including at least an amphiphilic copolymer, wherein the hydrophobic protection structure encapsulates the magnetic iron oxide nanoparticle, and at least one amino-terminal fragment (ATF) peptide or epidermal growth factor receptor (EGFR) antibody conjugated to the amphiphilic copolymer.
摘要:
This disclosure relates to methods and compositions for treating cancer with platinum particles. In certain embodiments, the disclosure relates to platinum particle coated with a polysaccharide, such as a heparin or modified heparin, conjugated to a polypeptide that has affinity for a cell surface cancer marker and uses related thereto.
摘要:
The present disclosure provides embodiments of a new class of hydroxylated quantum dots. The quantum dots have a hydroxylated coat disposed thereon, and which serves to minimize non-specific cellular binding and to maintain the small size of quantum dot probes. Embodiments of the coated quantum dots of the disclosure are just slightly larger than the diameter of uncoated quantum dots, and are bright with high quantum yields. They are also very stable under both basic and acidic conditions. Embodiments of the hydroxylated quantum dots result in significant reductions in non-specific binding relative to that of carboxylated dots, and to protein and PEG-coated dots. Embodiments of the disclosure are advantageous in a range of biological applications where non-specific binding is a major problem, such as in multiplexed biomarker staining in cells and tissues, detection of biomarkers in body fluid samples (blood, urine, etc.), as well as live cell imaging.
摘要:
According to one aspect, a system for intraoperatively providing anatomical guidance in a diagnostic or therapeutic procedure is disclosed. In one embodiment, the system includes: a first light source configured to emit a beam of visible light; second light source configured to emit a beam of near-infrared light; a handheld probe optically coupled to the second light source; a second imaging device configured to detect visible light; a third imaging device configured to detect near-infrared light having a first predetermined wavelength; a fourth imaging device configured to detect near-infrared light having a second predetermined wavelength; a display for displaying at least one visual representation of data; and, a controller programmed to generate at least one real-time integrated visual representation of an area of interest and to display the real-time visual representation on the display for guidance during the diagnostic or therapeutic procedure.
摘要:
Disclosed herein are compounds and compositions including a polyglycerol nanocarrier, a therapeutic agent or imaging agent, and optionally a targeting agent. In certain aspects the disclosed compounds include biocompatible hyperbranched polymer nanocarriers. Such compounds and compositions are useful for the targeted delivery of antitumor agents and imaging agents to tumors in vivo. Methods are also disclosed for detecting and treating such tumors.
摘要:
An alloyed semiconductor quantum dot comprising an alloy of at least two semiconductors, wherein the quantum dot has a homogeneous composition and is characterized by a band gap energy that is non-linearly related to the molar ratio of the at least two semiconductors; a series of alloyed semiconductor quantum dots related thereto; a concentration-gradient quantum dot comprising an alloy of a first semiconductor and a second semiconductor, wherein the concentration of the first semiconductor gradually increases from the core of the quantum dot to the surface of the quantum dot and the concentration of the second semiconductor gradually decreases from the core of the quantum dot to the surface of the quantum dot; a series of concentration-gradient quantum dots related thereto; in vitro and in vivo methods of use; and methods of producing the alloyed semiconductor and concentration-gradient quantum dots and the series of quantum dots related thereto.
摘要:
A nanostructure and methods of synthesizing same. In one embodiment, the nanostructure includes a nanospecies, a hydrophobic protection structure including at least one compound selected from a capping ligand, an amphiphilic copolymer, and combinations thereof, wherein the hydrophobic protection structure encapsulates the nanospecies, and at least one histidine-tagged peptide or protein conjugated to the hydrophobic protection structure, wherein the at least one histidine-tagged peptide or protein has at least one binding site.
摘要:
An alloyed semiconductor quantum dot comprising an alloy of at least two semiconductors, wherein the quantum dot has a homogeneous composition and is characterized by a band gap energy that is non-linearly related to the molar ratio of the at least two semiconductors; a series of alloyed semiconductor quantum dots related thereto; a concentration-gradient quantum dot comprising an alloy of a first semiconductor and a second semiconductor, wherein the concentration of the first semiconductor gradually increases from the core of the quantum dot to the surface of the quantum dot and the concentration of the second semiconductor gradually decreases from the core of the quantum dot to the surface of the quantum dot; a series of concentration-gradient quantum dots related thereto; in vitro and in vivo methods of use; and methods of producing the alloyed semiconductor and concentration-gradient quantum dots and the series of quantum dots related thereto.