Patents by Inventor Abdel Rahman ELSAYED
Abdel Rahman ELSAYED 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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Publication number: 20210338585Abstract: A delivery device for an active agent comprises nanoparticles based on a biopolymer such as starch. The delivery device may also be in the form of an aptamer-biopolymer-active agent conjugate wherein the aptamer targets the device for the treatment of specific disorders. The nanoparticles may be made by applying a high shear force in the presence of a crosslinker. The particles may be predominantly in the range of 50-150 nm and form a colloidal dispersion of crosslinked hydrogel particles in water. The biopolymer may be functionalized. The aptamer may be conjugated directly to the cross-linked biopolymers. The active agent may be a drug useful for the treatment of cancer. The delivery device survives for a period of time in the body sufficient to allow for the sustained release of a drug and for the transportation and uptake of the conjugate into targeted cells. However, the biopolymer is biocompatible and resorbable.Type: ApplicationFiled: July 15, 2021Publication date: November 4, 2021Inventors: Steven Bloembergen, Ian J. McLennan, Nathan Jones, Ryan Wagner, Aareet Mahadevan, Abdel Rahman Elsayed, Juewen Liu
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Publication number: 20190374469Abstract: A delivery device for an active agent comprises nanoparticles based on a biopolymer such as starch. The delivery device may also be in the form of an aptamer-biopolymer-active agent conjugate wherein the aptamer targets the device for the treatment of specific disorders. The nanoparticles may be made by applying a high shear force in the presence of a crosslinker. The particles may be predominantly in the range of 50-150 nm and form a colloidal dispersion of crosslinked hydrogel particles in water. The biopolymer may be functionalized. The aptamer may be conjugated directly to the cross-linked biopolymers. The active agent may be a drug useful for the treatment of cancer. The delivery device survives for a period of time in the body sufficient to allow for the sustained release of a drug and for the transportation and uptake of the conjugate into targeted cells. However, the biopolymer is biocompatible and resorbable.Type: ApplicationFiled: April 15, 2019Publication date: December 12, 2019Inventors: Steven Bloembergen, Ian J. McLennan, Nathan Jones, Ryan Wagner, Aareet Ganesh Shermon, Abdel Rahman Elsayed, Juewen Liu
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Patent number: 10285943Abstract: A delivery device for an active agent comprises nanoparticles based on a biopolymer such as starch. The delivery device may also be in the form of an aptamer-biopolymer-active agent conjugate wherein the aptamer targets the device for the treatment of specific disorders. The nanoparticles may be made by applying a high shear force in the presence of a crosslinker. The particles may be predominantly in the range of 50-150 nm and form a colloidal dispersion of crosslinked hydrogel particles in water. The biopolymer may be functionalized. The aptamer may be conjugated directly to the cross-linked biopolymers. The active agent may be a drug useful for the treatment of cancer. The delivery device survives for a period of time in the body sufficient to allow for the sustained release of a drug and for the transportation and uptake of the conjugate into targeted cells. However, the biopolymer is biocompatible and resorbable.Type: GrantFiled: December 2, 2011Date of Patent: May 14, 2019Assignee: GreenMark Biomedical Inc.Inventors: Steven Bloembergen, Ian J. McLennan, Nathan Jones, Ryan Wagner, Aareet Krsna Ganesh Shermon, Abdel Rahman Elsayed, Juewen Liu
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Publication number: 20130337065Abstract: A delivery device for an active agent comprises nanoparticles based on a biopolymer such as starch. The delivery device may also be in the form of an aptamer-biopolymer-active agent conjugate wherein the aptamer targets the device for the treatment of specific disorders. The nanoparticles may be made by applying a high shear force in the presence of a crosslinker. The particles may be predominantly in the range of 50-150 nm and form a colloidal dispersion of crosslinked hydrogel particles in water. The biopolymer may be functionalized. The aptamer may be conjugated directly to the cross-linked biopolymers. The active agent may be a drug useful for the treatment of cancer. The delivery device survives for a period of time in the body sufficient to allow for the sustained release of a drug and for the transportation and uptake of the conjugate into targeted cells. However, the biopolymer is biocompatible and resorbable.Type: ApplicationFiled: December 2, 2011Publication date: December 19, 2013Applicant: ECOSYNTHETIX LTD.Inventors: Steven Bloembergen, Ian J. McLennan, Nathan Jones, Ryan Wagner, Aareet Ganesh Shermon, Abdel Rahman Elsayed, Juewen Liu
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Publication number: 20130090467Abstract: A delivery device for an active agent comprises nanoparticles based on a biopolymer such as starch. The delivery device may also be in the form of an aptamer-biopolymer-active agent conjugate wherein the aptamer targets the device for the treatment of specific disorders. The nanoparticles may be made by applying a high shear force in the presence of a crosslinker. The particles may be predominantly in the range of 50-150 nm and form a colloidal dispersion of crosslinked hydrogel particles in water. The biopolymer may be functionalized. The aptamer may be conjugated directly to the cross-linked biopolymers. The active agent may be a drug useful for the treatment of cancer. The delivery device survives for a period of time in the body sufficient to allow for the sustained release of a drug and for the transportation and uptake of the conjugate into targeted cells. However, the biopolymer is biocompatible and resorbable.Type: ApplicationFiled: September 13, 2012Publication date: April 11, 2013Applicant: ECOSYNTHETIX LTD.Inventors: Steven BLOEMBERGEN, Ian J. MCLENNAN, Nathan JONES, Ryan WAGNER, Aareet Krsna GANESH SHERMON, Abdel Rahman ELSAYED, Juewen LIU
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Publication number: 20120141551Abstract: A delivery device for an active agent comprises nanoparticles based on a biopolymer such as starch. The delivery device may also be in the form of an aptamer-biopolymer-active agent conjugate wherein the aptamer targets the device for the treatment of specific disorders. The nanoparticles may be made by applying a high shear force in the presence of a crosslinker. The particles may be predominantly in the range of 50-150 nm and form a colloidal dispersion of crosslinked hydrogel particles in water. The biopolymer may be functionalized. The aptamer may be conjugated directly to the cross-linked biopolymers. The active agent may be a drug useful for the treatment of cancer. The delivery device survives for a period of time in the body sufficient to allow for the sustained release of a drug and for the transportation and uptake of the conjugate into targeted cells. However, the biopolymer is biocompatible and resorbable.Type: ApplicationFiled: December 2, 2011Publication date: June 7, 2012Applicant: ECOSYNTHETIX LTD.Inventors: Steven BLOEMBERGEN, Ian J. MCLENNAN, Nathan JONES, Ryan WAGNER, Aareet Krsna GANESH SHERMON, Abdel Rahman ELSAYED, Juewen LIU