METAL COATED NANOCRYSTALLINE SILICON AS AN ACTIVE SURFACE ENHANCED RAMAN SPECTROSCOPY (SERS) SUBSTRATE

    公开(公告)号:AU2003282750A1

    公开(公告)日:2004-09-09

    申请号:AU2003282750

    申请日:2003-10-07

    Applicant: INTEL CORP

    Abstract: The methods, systems 400 and apparatus disclosed herein concern metal 150 impregnated porous substrates 110, 210. Certain embodiments of the invention concern methods for producing metal-coated porous silicon substrates 110, 210 that exhibit greatly improved uniformity and depth of penetration of metal 150 deposition. The increased uniformity and depth allow improved and more reproducible Raman detection of analytes. In exemplary embodiments of the invention, the methods may comprise oxidation of porous silicon 110, immersion in a metal salt solution 130, drying and thermal decomposition of the metal salt 140 to form a metal deposit 150. In other exemplary embodiments of the invention, the methods may comprise microfluidic impregnation of porous silicon substrates 210 with one or more metal salt solutions 130. Other embodiments of the invention concern apparatus and/or systems 400 for Raman detection of analytes, comprising metal-coated porous silicon substrates 110, 210 prepared by the disclosed methods.

    Detecting molecular binding by monitoring feedback controlled cantilever deflections

    公开(公告)号:AU2003278903A8

    公开(公告)日:2004-04-19

    申请号:AU2003278903

    申请日:2003-09-24

    Applicant: INTEL CORP

    Abstract: The present methods and apparatus concern the detection and/or identification of target analytes using probe molecules. In various embodiments of the invention, the probes or analytes are attached to one or more cantilevers. Binding of a probe to an analyte results in deflection of the cantilever, detected by a detection unit. A counterbalancing force may be applied to restore the cantilever to its original position. The counterbalancing force may be magnetic, electrical or radiative. The detection unit and the mechanism generating the counterbalancing force may be operably coupled to an information processing and control unit, such as a computer. The computer may regulate a feedback loop that maintains the cantilever in a fixed position by balancing the deflecting force and the counterbalancing force. The concentration of analytes in a sample may be determined from the magnitude of the counterbalancing force required to maintain the cantilever in a fixed position.

    25.
    发明专利
    未知

    公开(公告)号:AT453853T

    公开(公告)日:2010-01-15

    申请号:AT03774634

    申请日:2003-10-07

    Applicant: INTEL CORP

    Abstract: The methods, systems 400 and apparatus disclosed herein concern metal 150 impregnated porous substrates 110, 210. Certain embodiments of the invention concern methods for producing metal-coated porous silicon substrates 110, 210 that exhibit greatly improved uniformity and depth of penetration of metal 150 deposition. The increased uniformity and depth allow improved and more reproducible Raman detection of analytes. In exemplary embodiments of the invention, the methods may comprise oxidation of porous silicon 110, immersion in a metal salt solution 130, drying and thermal decomposition of the metal salt 140 to form a metal deposit 150. In other exemplary embodiments of the invention, the methods may comprise microfluidic impregnation of porous silicon substrates 210 with one or more metal salt solutions 130. Other embodiments of the invention concern apparatus and/or systems 400 for Raman detection of analytes, comprising metal-coated porous silicon substrates 110, 210 prepared by the disclosed methods.

    26.
    发明专利
    未知

    公开(公告)号:DE60316150T2

    公开(公告)日:2008-06-05

    申请号:DE60316150

    申请日:2003-05-16

    Applicant: INTEL CORP

    Abstract: The methods and apparatus 300 disclosed herein concern Raman spectroscopy using metal coated nanocrystalline porous silicon substrates 240, 340 . In certain embodiments of the invention, porous silicon substrates 110, 210 may be formed by anodic etching in dilute hydrofluoric acid 150 . A thin coating of a Raman active metal, such as gold or silver, may be coated onto the porous silicon 110, 210 by cathodic electromigration or any known technique. The metal-coated substrate 240, 340 provides an extensive, metal rich environment for SERS, SERRS, hyper-Raman and/or CARS Raman spectroscopy. In certain embodiments of the invention, metal nanoparticles may be added to the metal-coated substrate 240, 340 to further enhance the Raman signals. Raman spectroscopy may be used to detect, identify and/or quantify a wide variety of analytes, using the disclosed methods and apparatus 300.

    27.
    发明专利
    未知

    公开(公告)号:AT372505T

    公开(公告)日:2007-09-15

    申请号:AT03760213

    申请日:2003-05-16

    Applicant: INTEL CORP

    Abstract: The methods and apparatus 300 disclosed herein concern Raman spectroscopy using metal coated nanocrystalline porous silicon substrates 240, 340 . In certain embodiments of the invention, porous silicon substrates 110, 210 may be formed by anodic etching in dilute hydrofluoric acid 150 . A thin coating of a Raman active metal, such as gold or silver, may be coated onto the porous silicon 110, 210 by cathodic electromigration or any known technique. The metal-coated substrate 240, 340 provides an extensive, metal rich environment for SERS, SERRS, hyper-Raman and/or CARS Raman spectroscopy. In certain embodiments of the invention, metal nanoparticles may be added to the metal-coated substrate 240, 340 to further enhance the Raman signals. Raman spectroscopy may be used to detect, identify and/or quantify a wide variety of analytes, using the disclosed methods and apparatus 300.

    METAL COATED NANOCRYSTALLINE SILICON AS AN ACTIVE SURFACE ENHANCED RAMAN SPECTROSCOPY (SERS) SUBSTRATE

    公开(公告)号:AU2003232139A1

    公开(公告)日:2003-12-31

    申请号:AU2003232139

    申请日:2003-05-16

    Applicant: INTEL CORP

    Abstract: The methods and apparatus 300 disclosed herein concern Raman spectroscopy using metal coated nanocrystalline porous silicon substrates 240, 340 . In certain embodiments of the invention, porous silicon substrates 110, 210 may be formed by anodic etching in dilute hydrofluoric acid 150 . A thin coating of a Raman active metal, such as gold or silver, may be coated onto the porous silicon 110, 210 by cathodic electromigration or any known technique. The metal-coated substrate 240, 340 provides an extensive, metal rich environment for SERS, SERRS, hyper-Raman and/or CARS Raman spectroscopy. In certain embodiments of the invention, metal nanoparticles may be added to the metal-coated substrate 240, 340 to further enhance the Raman signals. Raman spectroscopy may be used to detect, identify and/or quantify a wide variety of analytes, using the disclosed methods and apparatus 300.

    METHODS TO INCREASE NUCLEOTIDE SIGNALS BY RAMAN SCATTERING

    公开(公告)号:CA2478881A1

    公开(公告)日:2003-09-25

    申请号:CA2478881

    申请日:2003-03-11

    Applicant: INTEL CORP

    Abstract: The methods and apparatus disclosed herein concern nucleic acid sequencing b y enhanced Raman spectroscopy. In certain embodiments of the invention, nucleotides are covalently attached to Raman labels before incorporation int o a nucleic acid (13). Exonuclease (15) treatment of the labeled nucleic acid (13) results in the release of labeled nucleotides (16, 130), which are detected by Raman spectroscopy. In alternative embodiments of the invention, nucleotides (16, 130) released from a nucleic acid (13) by exonuclease (15) treatment are covalently cross-linked to silver or gold nanoparticles (140) and detected by surface enhanced Raman spectroscopy (SERS), surface enhanced resonance Raman spectroscopy (SERRS) and/or coherent anti-Stokes Raman spectroscopy (CARS). Other embodiments of the invention concern apparatus (1 0, 100, 210) for nucleic acid sequencing.

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