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).

  • Patent number: 10502732
    Abstract: 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: Grant
    Filed: May 23, 2014
    Date of Patent: December 10, 2019
    Inventors: Frank X. Gu, Lyndon W. Jones, Mohit S. Verma, Paul Chen
  • Patent number: 9993439
    Abstract: 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: Grant
    Filed: June 20, 2013
    Date of Patent: June 12, 2018
    Assignee: UNIVERSITY OF WATERLOO
    Inventors: Frank X. Gu, Lyndon William James Jones, Shengyan (Sandy) Liu
  • Patent number: 9981259
    Abstract: 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: Grant
    Filed: October 6, 2014
    Date of Patent: May 29, 2018
    Inventors: Frank X. Gu, Stuart Andrew Linley
  • Patent number: 9688812
    Abstract: 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: Grant
    Filed: February 13, 2015
    Date of Patent: June 27, 2017
    Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Frank X. Gu, Omid C. Farokhzad, Robert S. Langer, Benjamin A. Teply
  • Publication number: 20160243536
    Abstract: 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: Application
    Filed: October 6, 2014
    Publication date: August 25, 2016
    Inventors: Frank X. GU, Stuart Andrew LINLEY
  • Patent number: 9381477
    Abstract: 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: Grant
    Filed: June 22, 2007
    Date of Patent: July 5, 2016
    Assignees: 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
  • Patent number: 9333179
    Abstract: 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: Grant
    Filed: October 5, 2009
    Date of Patent: May 10, 2016
    Assignees: 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
  • Publication number: 20160123967
    Abstract: 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: Application
    Filed: May 23, 2014
    Publication date: May 5, 2016
    Inventors: Frank X. GU, Lyndon William James JONES, Mohit S. VERMA, Paul CHEN
  • Patent number: 9080014
    Abstract: 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: Grant
    Filed: November 9, 2012
    Date of Patent: July 14, 2015
    Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Frank X. Gu, Omid C. Farokhzad, Robert S. Langer, Benjamin A. Teply
  • Publication number: 20150157737
    Abstract: 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: Application
    Filed: February 13, 2015
    Publication date: June 11, 2015
    Inventors: Frank X. Gu, Omid C. Farokhzad, Robert S. Langer, Benjamin A. Teply
  • Patent number: 8906417
    Abstract: 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: Grant
    Filed: November 8, 2013
    Date of Patent: December 9, 2014
    Assignees: 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
  • Publication number: 20140079776
    Abstract: 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: Application
    Filed: November 8, 2013
    Publication date: March 20, 2014
    Applicants: The Brigham and Women's Hospital, Inc., Massachusetts Institute of Technology
    Inventors: Stephen J. Lippard, Shanta Dhar, Omid C. Farokhzad, Frank X. Gu, Nagesh Kolishetti
  • Patent number: 8603532
    Abstract: 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: Grant
    Filed: October 20, 2009
    Date of Patent: December 10, 2013
    Assignees: 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
  • Patent number: 8367113
    Abstract: 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: Grant
    Filed: May 15, 2007
    Date of Patent: February 5, 2013
    Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Frank X. Gu, Benjamin A. Teply, Robert S. Langer, Omid C. Farokhzad
  • Patent number: 8323698
    Abstract: 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: Grant
    Filed: September 1, 2010
    Date of Patent: December 4, 2012
    Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Frank X. Gu, Omid C. Farokhzad, Robert S. Langer, Benjamin A. Teply
  • Publication number: 20110300219
    Abstract: 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: Application
    Filed: October 20, 2009
    Publication date: December 8, 2011
    Applicants: The Brigham and Women's Hospital, Inc., Massachusetts Institute of Technology
    Inventors: Stephen J. Lippard, Shanta Dhar, Omid C. Farokhzad, Frank X. Gu, Nagesh Kolishetti
  • Publication number: 20110027172
    Abstract: 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: Application
    Filed: December 10, 2008
    Publication date: February 3, 2011
    Inventors: Zhuang Wang, Omid C. Farokhzad, Liangfang Zhang, Aleksandar Filip Radovic-Moreno, Frank X. Gu, Robert S. Langer
  • Publication number: 20100323199
    Abstract: 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: Application
    Filed: September 1, 2010
    Publication date: December 23, 2010
    Inventors: Frank X. Gu, Benjamin A. Teply, Robert S. Langer, Omid C. Farokhzad
  • Publication number: 20100203142
    Abstract: 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: Application
    Filed: October 5, 2009
    Publication date: August 12, 2010
    Applicants: 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
  • Publication number: 20100022680
    Abstract: 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: Application
    Filed: June 22, 2007
    Publication date: January 28, 2010
    Inventors: Rohit Karnik, Frank X. Gu, Pamela Basto, Chris Cannizzaro, Alireza Khademhosseini, Robert S. Langer, Omid C. Farokhzad