Patents by Inventor Chenfeng Ke

Chenfeng Ke 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).

  • Publication number: 20240076415
    Abstract: Provided are supramolecular polypseudorotaxane hydrogel compositions and 3-D structures capable of reversible 3-D structural deformation which include (a) a solvent; (b) an at least partially linear polymer, where the polymer further comprises groups capable of covalent crosslinking between the polymers; (ii) at least one first macrocyclic ring which forms a pseudorotaxane with a polymer in the polymer network; and (iii) at least one second macrocyclic ring that does not form the pseudorotaxane. The hydrogel composition has a viscosity which allows for 3-D printing of the hydrogel to form a 3-D structure, and a storage (elastic) modulus after crosslinking that allows for the 3-D structure to undergo reversible 3-D structural deformation upon change of solvent conditions. Also provided are methods of manufacturing the compositions and 3-D structures.
    Type: Application
    Filed: October 30, 2023
    Publication date: March 7, 2024
    Applicant: Trustees of Dartmouth College
    Inventors: Chenfeng Ke, Qianming Lin
  • Publication number: 20240002685
    Abstract: The invention provides a supramolecular polymer composition capable of co-assembly to maintain a three dimensional (3-D) macrostructural form after 3-D printing, made of a solvent, a template molecule; and a reactive component. The reactive component can be at least one monomer that is capable of hydrogen bonding with the template molecule to form a 1D supramolecular structure. The template may be an amphiphilic polymer. The monomer has at least two pendant groups capable of covalent crosslinking. The invention also includes a 3-D structure formed by crosslinking a 3-D printed supramolecular polymer composition, which optionally has a mesoporous structure. Also included is a method of manufacturing a 3-D structure by delivering a supramolecular polymer composition onto a surface of a substrate to form the 3-D structure.
    Type: Application
    Filed: September 19, 2023
    Publication date: January 4, 2024
    Applicant: Trustees of Dartmouth College
    Inventors: Chenfeng Ke, Pengfei Zhang, Longyu Li, Qianming Lin
  • Patent number: 11845812
    Abstract: Provided are supramolecular polypseudorotaxane hydrogel compositions and 3-D structures capable of reversible 3-D structural deformation which include (a) a solvent; (b) an at least partially linear polymer, where the polymer further comprises groups capable of covalent crosslinking between the polymers; (ii) at least one first macrocyclic ring which forms a pseudorotaxane with a polymer in the polymer network; and (iii) at least one second macrocyclic ring that does not form the pseudorotaxane. The hydrogel composition has a viscosity which allows for 3-D printing of the hydrogel to form a 3-D structure, and a storage (elastic) modulus after crosslinking that allows for the 3-D structure to undergo reversible 3-D structural deformation upon change of solvent conditions. Also provided are methods of manufacturing the compositions and 3-D structures.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: December 19, 2023
    Assignee: Trustees of Dartmouth College
    Inventors: Chenfeng Ke, Qianming Lin
  • Patent number: 11814527
    Abstract: The invention provides a supramolecular polymer composition capable of co-assembly to maintain a three dimensional (3-D) macrostructural form after 3-D printing, made of a solvent, a template molecule; and a reactive component. The reactive component can be at least one monomer that is capable of hydrogen bonding with the template molecule to form a 1D supramolecular structure. The template may be an amphiphilic polymer. The monomer has at least two pendant groups capable of covalent crosslinking. The invention also includes a 3-D structure formed by crosslinking a 3-D printed supramolecular polymer composition, which optionally has a mesoporous structure. Also included is a method of manufacturing a 3-D structure by delivering a supramolecular polymer composition onto a surface of a substrate to form the 3-D structure.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: November 14, 2023
    Assignee: Trustees of Dartmouth College
    Inventors: Chenfeng Ke, Pengfei Zhang, Longyu Li, Qianming Lin
  • Publication number: 20230174680
    Abstract: Embodiments of the present disclosure pertain to a composition that includes a rotaxane. The rotaxane includes a plurality of macrocyclic rings and a polymer with a molecular weight below 10,000 Da that is covalently appended to one or more sterically hindered molecules. The cavities of the macrocyclic rings are threaded onto the polymer. The plurality of threaded macrocyclic rings include a plurality of different segments that each include a plurality of threaded macrocyclic rings. Each of the plurality of different segments is in the form of a crystalline network. Further embodiments of the present disclosure pertain to methods of forming the rotaxanes by covalently appending one or more sterically hindered molecules onto a polymer and threading a plurality of macrocyclic rings onto the polymer. Additional embodiments of the present disclosure pertain to methods of manufacturing a three-dimensional structure by applying a composition of the present disclosure onto a surface.
    Type: Application
    Filed: May 10, 2021
    Publication date: June 8, 2023
    Applicant: Trustees of Dartmouth College
    Inventors: Chenfeng Ke, Qianming Lin, Longyu li, Miao Tang
  • Patent number: 11267979
    Abstract: Fluorescent dyes, ink compositions comprising the dyes, methods and devices for printing the ink compositions, images printed using the ink compositions and methods for authenticating the printed images are provided. The fluorescent dyes are heterorotaxanes that include large macrocyclic rings around fluorophores and are capable of emitting solid-state fluorescence. When the heterorotaxanes are combined with encapsulating agents and competitive binding agents in aqueous solution, the resulting ink composition exhibits a complex, dynamic equilibrium that provides a tunable fluorescence emission spectrum with a non-linear response to the dye concentration.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: March 8, 2022
    Assignees: Northwestern University, Innotune LLC
    Inventors: James Fraser Stoddart, Xisen Hou, Chenfeng Ke, Roger B. Pettman
  • Publication number: 20210171668
    Abstract: Provided are supramolecular polypseudorotaxane hydrogel compositions and 3-D structures capable of reversible 3-D structural deformation which include (a) a solvent; (b) an at least partially linear polymer, where the polymer further comprises groups capable of covalent crosslinking between the polymers; (ii) at least one first macrocyclic ring which forms a pseudorotaxane with a polymer in the polymer network; and (iii) at least one second macrocyclic ring that does not form the pseudorotaxane. The hydrogel composition has a viscosity which allows for 3-D printing of the hydrogel to form a 3-D structure, and a storage (elastic) modulus after crosslinking that allows for the 3-D structure to undergo reversible 3-D structural deformation upon change of solvent conditions. Also provided are methods of manufacturing the compositions and 3-D structures.
    Type: Application
    Filed: February 12, 2021
    Publication date: June 10, 2021
    Applicant: Trustees of Dartmouth College
    Inventors: Chenfeng Ke, Qianming Lin
  • Patent number: 10954315
    Abstract: Provided are supramolecular polypseudorotaxane hydrogel compositions and 3-D structures capable of reversible 3-D structural deformation which include (a) a solvent; (b) an at least partially linear polymer, where the polymer further comprises groups capable of covalent crosslinking between the polymers; (ii) at least one first macrocyclic ring which forms a pseudorotaxane with a polymer in the polymer network; and (iii) at least one second macrocyclic ring that does not form the pseudorotaxane. The hydrogel composition has a viscosity which allows for 3-D printing of the hydrogel to form a 3-D structure, and a storage (elastic) modulus after crosslinking that allows for the 3-D structure to undergo reversible 3-D structural deformation upon change of solvent conditions. Also provided are methods of manufacturing the compositions and 3-D structures.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: March 23, 2021
    Assignee: TRUSTEES OF DARTMOUTH COLLEGE
    Inventors: Chenfeng Ke, Qianming Lin
  • Publication number: 20200131383
    Abstract: The invention provides a supramolecular polymer composition capable of co-assembly to maintain a three dimensional (3-D) macrostructural form after 3-D printing, made of a solvent, a template molecule; and a reactive component. The reactive component can be at least one monomer that is capable of hydrogen bonding with the template molecule to form a 1D supramolecular structure. The template may be an amphiphilic polymer. The monomer has at least two pendant groups capable of covalent crosslinking. The invention also includes a 3-D structure formed by crosslinking a 3-D printed supramolecular polymer composition, which optionally has a mesoporous structure. Also included is a method of manufacturing a 3-D structure by delivering a supramolecular polymer composition onto a surface of a substrate to form the 3-D structure.
    Type: Application
    Filed: April 27, 2018
    Publication date: April 30, 2020
    Applicant: Trustees of Dartmouth College
    Inventors: Chenfeng Ke, Pengfei Zhang, Longyu Li, Qianming Lin
  • Publication number: 20190169456
    Abstract: Fluorescent dyes, ink compositions comprising the dyes, methods and devices for printing the ink compositions, images printed using the ink compositions and methods for authenticating the printed images are provided. The fluorescent dyes are heterorotaxanes that include large macrocyclic rings around fluorophores and are capable of emitting solid-state fluorescence. When the heterorotaxanes are combined with encapsulating agents and competitive binding agents in aqueous solution, the resulting ink composition exhibits a complex, dynamic equilibrium that provides a tunable fluorescence emission spectrum with a non-linear response to the dye concentration.
    Type: Application
    Filed: February 6, 2019
    Publication date: June 6, 2019
    Applicants: Northwestern University, Innotune LLC
    Inventors: James Fraser Stoddart, Xisen Hou, Chenfeng Ke, Roger B. Pettman
  • Publication number: 20190144569
    Abstract: Provided are supramolecular polypseudorotaxane hydrogel compositions and 3-D structures capable of reversible 3-D structural deformation which include (a) a solvent; (b) an at least partially linear polymer, where the polymer further comprises groups capable of covalent crosslinking between the polymers; (ii) at least one first macrocyclic ring which forms a pseudorotaxane with a polymer in the polymer network; and (iii) at least one second macrocyclic ring that does not form the pseudorotaxane. The hydrogel composition has a viscosity which allows for 3-D printing of the hydrogel to form a 3-D structure, and a storage (elastic) modulus after crosslinking that allows for the 3-D structure to undergo reversible 3-D structural deformation upon change of solvent conditions. Also provided are methods of manufacturing the compositions and 3-D structures.
    Type: Application
    Filed: November 15, 2017
    Publication date: May 16, 2019
    Inventors: Chenfeng Ke, Qianming Lin
  • Patent number: 9937272
    Abstract: A water-soluble compound of the formula (I): wherein R9 and R10 are suitably hydrophilic substituents, which may be used to selectively bind to a target saccharide such as glucose and which exhibits a detectable spectroscopic response to such binding, thus enabling its use in the detection and correction of blood glucose concentrations in vivo.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: April 10, 2018
    Assignee: University of Bristol
    Inventors: Chenfeng Ke, Anthony P. Davis
  • Publication number: 20170266321
    Abstract: A water-soluble compound of the formula (I): wherein R9 and R10 are suitably hydrophilic substituents, which may be used to selectively bind to a target saccharide such as glucose and which exhibits a detectable spectroscopic response to such binding, thus enabling its use in the detection and correction of blood glucose concentrations in vivo.
    Type: Application
    Filed: February 28, 2017
    Publication date: September 21, 2017
    Applicant: University of Bristol
    Inventors: Chenfeng KE, Anthony P. Davis
  • Patent number: 9610365
    Abstract: A water-soluble compound of the formula (I): wherein R9 and R10 are suitably hydrophilic substituents, which may be used to selectively bind to a target saccharide such as glucose and which exhibits a detectable spectroscopic response to such binding, thus enabling its use in the detection and correction of blood glucose concentrations in vivo.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: April 4, 2017
    Assignee: University of Bristol
    Inventors: Chenfeng Ke, Anthony P. Davis
  • Publication number: 20160137864
    Abstract: Fluorescent dyes, ink compositions comprising the dyes, methods and devices for printing the ink compositions, images printed using the ink compositions and methods for authenticating the printed images are provided. The fluorescent dyes are heterorotaxanes that include large macrocyclic rings around fluorophores and are capable of emitting solid-state fluorescence. When the heterorotaxanes are combined with encapsulating agents and competitive binding agents in aqueous solution, the resulting ink composition exhibits a complex, dynamic equilibrium that provides a tunable fluorescence emission spectrum with a non-linear response to the dye concentration.
    Type: Application
    Filed: September 28, 2015
    Publication date: May 19, 2016
    Inventors: J. Fraser Stoddart, Xisen Hou, Chenfeng Ke, Roger B. Pettman
  • Publication number: 20160137845
    Abstract: Fluorescent dyes are provided. The fluorescent dyes are heterorotaxanes that include large macrocyclic rings around fluorophores and are capable of emitting solid-state fluorescence.
    Type: Application
    Filed: September 28, 2015
    Publication date: May 19, 2016
    Inventors: J. Fraser Stoddart, Xisen Hou, Chenfeng Ke
  • Publication number: 20150147275
    Abstract: A water-soluble compound of the formula (I): (Formula (I)) wherein R9 and R10 are suitably hydrophilic substituents, which may be used to selectively bind to a target saccharide such as glucose and which exhibits a detectable spectroscopic response to such binding, thus enabling its use in the detection and correction of blood glucose concentrations in vivo.
    Type: Application
    Filed: April 26, 2013
    Publication date: May 28, 2015
    Inventors: Chenfeng Ke, Anthony P. Davis