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Fluorescent probes - Issued patents / Published patent applications

Diarylamine-based fluorogenic probes for detection of peroxynitrite

Year: 2013

Inventor: Professor Yang Dan and others

Provided herein are improved fluorogenic compounds and probes that can be used as reagents for measuring, detecting and/or screening peroxynitrite. The fluorogenic compounds of the invention can produce fluorescence colors, such as green, yellow, red, or far-red. Also provided herein are fluorogenic compounds for selectively staining peroxynitrite in the mitochondria of living cells. Provided also herein are methods that can be used to measure, directly or indirectly, the presence and/or amount of peroxynitrite in chemical samples and biological samples such as cells and tissues in living organisms. Also provided are high-throughput screening methods for detecting or screening peroxynitrite or compounds that can increase or decrease the level of peroxynitrite in chemical and biological samples.

Reagents for detection of hypochlorous acid

Year: 2011 / 2010 / 2009 / 2008

Inventor: Professor Yang Dan and others

Provided herein are compounds or hypochlorous acid probes which can be used as reagents for measuring, detecting and/or screening, directly or indirectly, hypochlorous acid or hypochlorite. Provided also herein are methods that can be used to measure, directly or indirectly, the amount of hypochlorous acid or hypochlorite in chemical samples and biological samples such as cells and tissues in living organisms. Specifically, the methods include the steps of contacting the hypochlorous acid probes disclosed herein with the samples to form one or more fluorescent compounds, and measuring fluorescence properties of the fluorescent compounds. Provided also herein are high-throughput screening fluorescent methods for detecting or screening hypochlorous acid or compounds that can increase or decrease, directly or indirectly, the level of hypochlorous acid or hypochlorite in chemical and biological samples.

5-demethoxyfumagillol and derivatives thereof

Year: 2011

Inventor: Professor Yang Dan and others

Provided herein are 5-demethoxyfumagillol and its derivatives. Also provided herein are methods of making the 5-demethoxyfumagillol and derivatives. Also provided herein are biological activities of the 5-demethoxyfumagillol and derivatives and methods of using same for treating diseases.

Fluorophore compounds

Year: 2011 / 2009

Inventor: Professor Yang Dan and others

Provided herein are fluorophore compounds including rhodol and rhodamine compounds which can be used as fluorescent labels and/or fluorogenic probes and methods of making same. Provided also herein are methods that can be used to track, measure, detect, or screen biological species such as protein, DNA, enzyme, antibody, organelle, cell, tissue, drug, hormone, nucleotide, nucleic acid, polysaccharide or lipid in living organisms. Specifically, the methods include the steps of contacting any of the fluorophore compounds, rhodol compounds and rhodamine compounds disclosed herein with the biological species to form one or more fluorescent compounds, and measuring fluorescence properties of the fluorescent compounds. Provided also herein are high-throughput screening fluorescent methods for detecting or screening biological species.

Luminescence quenchers and fluorogenic probes for detection of reactive species

Year: 2011 / 2010 / 2009

Inventor: Professor Yang Dan and others

Provided herein are compounds or fluorogenic probes which can be used as reagents for measuring, detecting and/or screening ROS or RNS such as peroxynitrite or hypochlorite. Provided also herein are methods that can be used to measure, directly or indirectly, the amount of peroxynitrite or hypochlorite in chemical samples and biological samples such as cells and tissues in living organisms. Specifically, the methods include the steps of contacting the fluorogenic probes disclosed herein with the samples to form one or more fluorescent compounds, and measuring fluorescence properties of the fluorescent compounds. Provided also herein are high-throughput screening fluorescent methods for detecting or screening peroxynitrite or compounds that can increase or decrease the level of peroxynitrite or hypochlorite in chemical and biological samples.

Reagents for highly specific detection of peroxynitrite

Year: 2008 / 2007

Inventor: Professor Yang Dan and others

This invention provides compositions which specifically reacts with peroxynitrite rather than other reactive oxygen species and reactive nitrogen species. This invention also provides related agents for measuring peroxynitrite. This invention also provides related methods for measuring peroxynitrite in a sample, high-throughput screening fluorescent methods for detecting peroxynitrite and high-throughput methods for screening compounds that increase or decrease the production of peroxynitrite comprising using such compositions and agents.