Patents by Inventor Frank X. Gu
Frank X. Gu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10502732Abstract: The present disclosure relates to a method for the direct detection of pathogen in a sample using unmodified metallic nanoparticles, such as gold nanoparticles. The method may employ colorimetric detection. The combination of unmodified metallic nanoparticles and colorimetric detection provides a method that is simple, rapid, and economical compared to prior art methods that require modified nanoparticles or expensive detection equipment. The method does not require labeling of the target pathogen and is capable of detecting a broad spectrum of pathogens.Type: GrantFiled: May 23, 2014Date of Patent: December 10, 2019Inventors: Frank X. Gu, Lyndon W. Jones, Mohit S. Verma, Paul Chen
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Patent number: 9993439Abstract: The present disclosure relates generally to a mucoadhesive nanoparticle delivery system. The nanoparticles are formed from amphiphilic macromolecules conjugated to a mucosal targeting moiety in such a manner that the surface of the nanoparticle is coated with the targeting moiety. The surface density of the targeting moiety can be tuned for adjustable targeting of the nanoparticles to a mucosal site without substantially compromising the stability of the particles. The particles were found to have high loading efficiency and sustained release properties at the mucosal site. The present disclosure also relates to polymers and macromolecules useful in the preparation of the mucoadhesive nanoparticles, as well as compositions, methods, commercial packages, kits and uses related thereto.Type: GrantFiled: June 20, 2013Date of Patent: June 12, 2018Assignee: UNIVERSITY OF WATERLOOInventors: Frank X. Gu, Lyndon William James Jones, Shengyan (Sandy) Liu
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Patent number: 9981259Abstract: The disclosure is directed at a method of producing a recyclable photocatalytic particulate. The recyclable photocatalytic particulate includes metal oxide nanoparticles and electrically insulative magnetic particles which are amine functionalized and then added to a sheet of graphene oxide, preferably in solution. This combination is then hydrothermally treated to create covalent bonds between the metal oxide nanoparticles and the graphene oxide sheet and the electrically insulative controlled aggregates with the graphene oxide sheet.Type: GrantFiled: October 6, 2014Date of Patent: May 29, 2018Inventors: Frank X. Gu, Stuart Andrew Linley
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Patent number: 9688812Abstract: A method includes producing libraries of nanoparticles having highly controlled properties, which can be formed by mixing together two or more macromolecules in different ratios. One or more of the macromolecules may be a polymeric conjugate of a moiety to a biocompatible polymer. The nanoparticle may contain a drug. The moiety may include a polypeptide or a polynucleotide, such as an aptamer. The moiety may be a targeting moiety, an imaging moiety, a chelating moiety, a charged moiety, or a therapeutic moiety. Another aspect is directed to systems and methods of producing such polymeric conjugates. In some embodiments, a solution containing a polymer is contacted with a liquid, such as an immiscible liquid, to form nanoparticles containing the polymeric conjugate. Other methods use such libraries, use or administer such polymeric conjugates, or promote the use of such polymeric conjugates. Kits involving such polymeric conjugates are also described.Type: GrantFiled: February 13, 2015Date of Patent: June 27, 2017Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.Inventors: Frank X. Gu, Omid C. Farokhzad, Robert S. Langer, Benjamin A. Teply
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Publication number: 20160243536Abstract: The disclosure is directed at a method of producing a recyclable photocatalytic particulate. The recyclable photocatalytic particulate includes metal oxide nanoparticles and electrically insulative magnetic particles which are amine functionalized and then added to a sheet of graphene oxide, preferably in solution. This combination is then hydrothermally treated to create covalent bonds between the metal oxide nanoparticles and the graphene oxide sheet and the electrically insulative controlled aggregates with the graphene oxide sheet.Type: ApplicationFiled: October 6, 2014Publication date: August 25, 2016Inventors: Frank X. GU, Stuart Andrew LINLEY
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Patent number: 9381477Abstract: The present invention provides microfluidic systems and methods for the production of particles (e.g., nanoparticles) for drug delivery. The present invention provides microfluidic devices useful for production of particles by nanoprecipitation. The present invention provides highly homogenous compositions of particles produced by inventive microfluidic devices.Type: GrantFiled: June 22, 2007Date of Patent: July 5, 2016Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.Inventors: Rohit Karnik, Frank X. Gu, Pamela Basto, Chris Cannizzaro, Alireza Khademhosseini, Robert S. Langer, Omid C. Farokhzad
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Patent number: 9333179Abstract: The present invention generally relates to nanoparticles with an amphiphilic component. One aspect of the invention is directed to a method of developing nanoparticles with desired properties. In one set of embodiments, the method includes producing libraries of nanoparticles having highly controlled properties, which can be formed by mixing together two or more macromolecules in different ratios. One or more of the macromolecules may be a polymeric conjugate of a moiety to a biocompatible polymer. In some cases, the nanoparticle may contain a drug. Other aspects of the invention are directed to methods using nanoparticle libraries.Type: GrantFiled: October 5, 2009Date of Patent: May 10, 2016Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.Inventors: Liangfang Zhang, Aleksandar F. Radovic-Moreno, Frank X. Gu, Frank Alexis, Robert S. Langer, Omid C. Farokhzad
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Publication number: 20160123967Abstract: The present disclosure relates to a method for the direct detection of pathogen in a sample using unmodified metallic nanoparticles, such as gold nanoparticles. The method may employ colorimetric detection. The combination of unmodified metallic nanoparticles and colorimetric detection provides a method that is simple, rapid, and economical compared to prior art methods that require modified nanoparticles or expensive detection equipment. The method does not require labeling of the target pathogen and is capable of detecting a broad spectrum of pathogens.Type: ApplicationFiled: May 23, 2014Publication date: May 5, 2016Inventors: Frank X. GU, Lyndon William James JONES, Mohit S. VERMA, Paul CHEN
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Patent number: 9080014Abstract: A method includes producing libraries of nanoparticles having highly controlled properties, which can be formed by mixing together two or more macromolecules in different ratios. One or more of the macromolecules may be a polymeric conjugate of a moiety to a biocompatible polymer. The nanoparticle may contain a drug. The moiety may include a polypeptide or a polynucleotide, such as an aptamer. The moiety may be a targeting moiety, an imaging moiety, a chelating moiety, a charged moiety, or a therapeutic moiety. Another aspect is directed to systems and methods of producing such polymeric conjugates. In some embodiments, a solution containing a polymer is contacted with a liquid, such as an immiscible liquid, to form nanoparticles containing the polymeric conjugate. Other methods use such libraries, use or administer such polymeric conjugates, or promote the use of such polymeric conjugates. Kits involving such polymeric conjugates are also described.Type: GrantFiled: November 9, 2012Date of Patent: July 14, 2015Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.Inventors: Frank X. Gu, Omid C. Farokhzad, Robert S. Langer, Benjamin A. Teply
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Publication number: 20150157737Abstract: A method includes producing libraries of nanoparticles having highly controlled properties, which can be formed by mixing together two or more macromolecules in different ratios. One or more of the macromolecules may be a polymeric conjugate of a moiety to a biocompatible polymer. The nanoparticle may contain a drug. The moiety may include a polypeptide or a polynucleotide, such as an aptamer. The moiety may be a targeting moiety, an imaging moiety, a chelating moiety, a charged moiety, or a therapeutic moiety. Another aspect is directed to systems and methods of producing such polymeric conjugates. In some embodiments, a solution containing a polymer is contacted with a liquid, such as an immiscible liquid, to form nanoparticles containing the polymeric conjugate. Other methods use such libraries, use or administer such polymeric conjugates, or promote the use of such polymeric conjugates. Kits involving such polymeric conjugates are also described.Type: ApplicationFiled: February 13, 2015Publication date: June 11, 2015Inventors: Frank X. Gu, Omid C. Farokhzad, Robert S. Langer, Benjamin A. Teply
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Patent number: 8906417Abstract: The present invention provides compositions, preparations, formulations, kits, and methods useful for treating subjects having cancer or at risk of developing cancer. Some embodiments of the invention may comprise a composition comprising a plurality of particles comprising a platinum(IV) therapeutically active precursor.Type: GrantFiled: November 8, 2013Date of Patent: December 9, 2014Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.Inventors: Stephen J. Lippard, Shanta Dhar, Omid C. Farokhzad, Frank X. Gu, Nagesh Kolishetti
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Publication number: 20140079776Abstract: The present invention provides compositions, preparations, formulations, kits, and methods useful for treating subjects having cancer or at risk of developing cancer. Some embodiments of the invention may comprise a composition comprising a plurality of particles comprising a platinum(IV) therapeutically active precursor.Type: ApplicationFiled: November 8, 2013Publication date: March 20, 2014Applicants: The Brigham and Women's Hospital, Inc., Massachusetts Institute of TechnologyInventors: Stephen J. Lippard, Shanta Dhar, Omid C. Farokhzad, Frank X. Gu, Nagesh Kolishetti
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Patent number: 8603532Abstract: The present invention provides compositions, preparations, formulations, kits, and methods useful for treating subjects having cancer or at risk of developing cancer. Some embodiments of the invention may comprise a composition comprising a plurality of particles comprising a platinum(IV) therapeutically active precursor.Type: GrantFiled: October 20, 2009Date of Patent: December 10, 2013Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.Inventors: Stephen J. Lippard, Shanta Dhar, Omid C. Farokhzad, Frank X. Gu, Nagesh Kolishetti
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Patent number: 8367113Abstract: The present invention generally relates to polymers and macromolecules, in particular, to block polymers useful in particles such as nanoparticles. One aspect of the invention is directed to a method of developing nanoparticles with desired properties. In one set of embodiments, the method includes producing libraries of nanoparticles having highly controlled properties, which can be formed by mixing together two or more macromolecules in different ratios. One or more of the macromolecules may be a polymeric conjugate of a moiety to a biocompatible polymer. In some cases, the nanoparticle may contain a drug. The moiety, in some embodiments, may have a molecular weight greater than about 1000 Da; for example, the moiety may include a polypeptide or a polynucleotide, such as an aptamer. The moiety may also be a targeting moiety, an imaging moiety, a chelating moiety, a charged moiety, or a therapeutic moiety.Type: GrantFiled: May 15, 2007Date of Patent: February 5, 2013Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.Inventors: Frank X. Gu, Benjamin A. Teply, Robert S. Langer, Omid C. Farokhzad
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Patent number: 8323698Abstract: The present invention generally relates to polymers and macromolecules, in particular, to block polymers useful in particles such as nanoparticles. One aspect of the invention is directed to a method of developing nanoparticles with desired properties. In one set of embodiments, the method includes producing libraries of nanoparticles having highly controlled properties, which can be formed by mixing together two or more macromolecules in different ratios. One or more of the macromolecules may be a polymeric conjugate of a moiety to a biocompatible polymer. In some cases, the nanoparticle may contain a drug. The moiety, in some embodiments, may have a molecular weight greater than about 1000 Da; for example, the moiety may include a polypeptide or a polynucleotide, such as an aptamer. The moiety may also be a targeting moiety, an imaging moiety, a chelating moiety, a charged moiety, or a therapeutic moiety.Type: GrantFiled: September 1, 2010Date of Patent: December 4, 2012Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.Inventors: Frank X. Gu, Omid C. Farokhzad, Robert S. Langer, Benjamin A. Teply
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Publication number: 20110300219Abstract: The present invention provides compositions, preparations, formulations, kits, and methods useful for treating subjects having cancer or at risk of developing cancer. Some embodiments of the invention may comprise a composition comprising a plurality of particles comprising a platinum(IV) therapeutically active precursor.Type: ApplicationFiled: October 20, 2009Publication date: December 8, 2011Applicants: The Brigham and Women's Hospital, Inc., Massachusetts Institute of TechnologyInventors: Stephen J. Lippard, Shanta Dhar, Omid C. Farokhzad, Frank X. Gu, Nagesh Kolishetti
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Publication number: 20110027172Abstract: The present invention provides a drug delivery system for delivery of an agent and a radiopharmaceutical agent. The drug delivery system may specifically target an organ, tissue, cells, extracellular matrix, or intracellular compartment. Typically, the drug delivery system is a particle. Pharmaceutical compositions comprising the inventive particles are also provided. The present invention provides methods of preparing and using the inventive particles and pharmaceutical compositions. The inventive particles are useful in treating and diagnosing a variety of diseases including cancer. The inventive particles are also useful in tracking particles in vivo.Type: ApplicationFiled: December 10, 2008Publication date: February 3, 2011Inventors: Zhuang Wang, Omid C. Farokhzad, Liangfang Zhang, Aleksandar Filip Radovic-Moreno, Frank X. Gu, Robert S. Langer
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Publication number: 20100323199Abstract: The present invention generally relates to polymers and macromolecules, in particular, to block polymers useful in particles such as nanoparticles. One aspect of the invention is directed to a method of developing nanoparticles with desired properties. In one set of embodiments, the method includes producing libraries of nanoparticles having highly controlled properties, which can be formed by mixing together two or more macromolecules in different ratios. One or more of the macromolecules may be a polymeric conjugate of a moiety to a biocompatible polymer. In some cases, the nanoparticle may contain a drug. The moiety, in some embodiments, may have a molecular weight greater than about 1000 Da; for example, the moiety may include a polypeptide or a polynucleotide, such as an aptamer. The moiety may also be a targeting moiety, an imaging moiety, a chelating moiety, a charged moiety, or a therapeutic moiety.Type: ApplicationFiled: September 1, 2010Publication date: December 23, 2010Inventors: Frank X. Gu, Benjamin A. Teply, Robert S. Langer, Omid C. Farokhzad
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Publication number: 20100203142Abstract: The present invention generally relates to nanoparticles with an amphiphilic component. One aspect of the invention is directed to a method of developing nanoparticles with desired properties. In one set of embodiments, the method includes producing libraries of nanoparticles having highly controlled properties, which can be formed by mixing together two or more macromolecules in different ratios. One or more of the macromolecules may be a polymeric conjugate of a moiety to a biocompatible polymer. In some cases, the nanoparticle may contain a drug. Other aspects of the invention are directed to methods using nanoparticle libraries.Type: ApplicationFiled: October 5, 2009Publication date: August 12, 2010Applicants: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, THE BRIGHAM AND WOMEN'S HOSPITAL, INC.Inventors: Liangfang ZHANG, Aleksandar F. RADOVIC-MORENO, Frank X. GU, Frank ALEXIS, Robert S. LANGER, Omid C. FAROKHZAD
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Publication number: 20100022680Abstract: The present invention provides microfluidic systems and methods for the production of particles (e.g., nanoparticles) for drug delivery. The present invention provides microfluidic devices useful for production of particles by nanoprecipitation. The present invention provides highly homogenous compositions of particles produced by inventive microfluidic devices.Type: ApplicationFiled: June 22, 2007Publication date: January 28, 2010Inventors: Rohit Karnik, Frank X. Gu, Pamela Basto, Chris Cannizzaro, Alireza Khademhosseini, Robert S. Langer, Omid C. Farokhzad