Patents by Inventor Graham Ellis-Davies

Graham Ellis-Davies 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: 8642785
    Abstract: The present invention relates to photolabile or photoreleasable compounds including a caging moiety linked to an effector moiety, wherein the compounds are capable of releasing the effector moiety on irradiation, typically by flash irradiation with UV light. These compounds are particularly suitable for focal 2-photon uncaging The photoreleasable compounds can be used to deliver effector moieties such as carboxylic acids, preferably, neuroactive amino acids to sites where their activity is required. In preferred embodiments of the invention, the caging moiety is based on 4-carboxymethoxy-5,7-dinitroinlinyl and derivatives thereof.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: February 4, 2014
    Assignee: Philadelphia Health & Education Corporation
    Inventor: Graham Ellis-Davies
  • Publication number: 20110226610
    Abstract: Inventors have developed a chromophore (nitrodibenzylfuranyl, or NBDF) for ultra efficient uncaging of a caged substrate (e.g., an organic molecule such as, for example, an amino acid, a biological molecules, such as, for example, second messengers inside cells). Photolysis of a NBDF derivative of EGTA (i.e. caged calcium) is about 50 times more efficient than others calcium cages (the quantum yield of photolysis is 0.6 and the extinction coefficient is 18,400. NDBF-EGTA has a 2-photon cross section of about 0.3-0.6 GM).
    Type: Application
    Filed: February 18, 2011
    Publication date: September 22, 2011
    Applicant: Philadelphia Health & Education Corporation d/b/a Drexel University College of Medicine
    Inventors: Graham Ellis-Davies, Atsuya Momotake
  • Patent number: 7897638
    Abstract: Inventors have developed a chromophore (nitrodibenzylfuranyl, or NBDF) for ultra efficient uncaging of a caged substrate (e.g., an organic molecule such as, for example, an amino acid, a biological molecules, such as, for example, second messengers inside cells). Photolysis of a NBDF derivative of EGTA (i.e. caged calcium) is about 50 times more efficient than others calcium cages (the quantum yield of photolysis is 0.6 and the extinction coefficient is 18,400. NDBF-EGTA has a 2-photon cross section of about 0.3-0.6 GM).
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: March 1, 2011
    Assignee: Philadelphia Health & Education Corporation
    Inventors: Graham Ellis-Davies, Atsuya Momotake
  • Publication number: 20100096252
    Abstract: The present invention relates to photolabile or photoreleasable compounds including a caging moiety linked to an effector moiety, wherein the compounds are capable of releasing the effector moiety on irradiation, typically by flash irradiation with light. These compounds are particularly suitable for focal 2-photon uncaging The photoreleasable compounds can be used to deliver effector moieties such as carboxylic acids, preferably, neuroactive amino acids to sites where their activity is required. In preferred embodiments of the invention, the caging moiety is based on 4-carboxymethoxy-5,7-dinitroinlinyl and derivatives thereof.
    Type: Application
    Filed: January 29, 2008
    Publication date: April 22, 2010
    Applicant: PHILADELPHIA HEALTH & EDUCATION CORPORATION, d/b/a DREXEL UNIVERSITY COLLEGE OF
    Inventor: Graham Ellis-Davies
  • Publication number: 20080188645
    Abstract: Inventors have developed a chromophore (nitrodibenzylfuranyl, or NBDF) for ultra efficient uncaging of a caged substrate (e.g., an organic molecule such as, for example, an amino acid, a biological molecules, such as, for example, second messengers inside cells). Photolysis of a NBDF derivative of EGTA (i.e. caged calcium) is about 50 times more efficient than others calcium cages (the quantum yield of photolysis is 0.6 and the extinction coefficient is 18,400. NDBF-EGTA has a 2-photon cross section of about 0.3-0.6 GM).
    Type: Application
    Filed: April 12, 2006
    Publication date: August 7, 2008
    Applicant: Philadelphia Health & Education Corporation d/b/a Drexel University College of Medicine
    Inventors: Graham Ellis-Davies, Atsuya Momotake