摘要:
This invention provides a redox fuel cell comprising an anode and a cathode separated by an ion selective polymer electrolyte membrane; means for supplying a fuel to the anode region of the cell; means for supplying an oxidant to the cathode region of the cell; means for providing an electrical circuit between the anode and the cathode; a non-volatile catholyte solution flowing fluid communication with the cathode, the catholyte solution comprising a polyoxometallate redox couple being at least partially reduced at the cathode in operation of the cell, and at least partially re-generated by reaction with the oxidant after such reduction at the cathode, the catholyte solution comprising at least one counterion for the polyoxometallate redox couple wherein the at least one counterion comprises one or more divalent ions.
摘要:
The invention relates to reverse transcriptases which have increased fidelity (or reduced misincorporation rate) and/or terminal deoxynucleotidyl transferase activity. In particular, the invention relates to a method of making such reverse transcriptases by modifying or mutating specified positions in the reverse transcriptases. The invention also relates to nucleic acid molecules containing the genes encoding the reverse trancriptases of the invention, to host cells containing such nucleic acid molecules and to methods to make the reverse trancriptases using the host cells. The reverse transcriptases of the invention are particularly suited for nucleic acid synthesis, sequencing, amplification and cDNA synthesis.
摘要:
This invention provides a redox fuel cell comprising an anode and a cathode separated by an ion selective polymer electrolyte membrane; means for supplying a fuel to the anode region of the cell; means for supplying an oxidant to the cathode region of the cell; means for providing an electrical circuit between the anode and the cathode; a non-volatile catholyte solution flowing fluid communication with the cathode, the catholyte solution comprising a polyoxometallate redox couple being at least partially reduced at the cathode in operation of the cell, and at least partially re-generated by reaction with the oxidant after such reduction at the cathode, the catholyte solution comprising at least one counterion for the polyoxometallate redox couple wherein the at least one counterion comprises one or more divalent ions.
摘要:
The present invention provides polypeptides having a nucleotide polymerase activity and method of enhancing polymerase activity. The polypeptides of the present invention may posses both a DNA-dependent DNA polymerase activity and an RNA-dependent DNA polymerase activity, i.e., a reverse transcriptase activity. The polypeptides of the present invention may be used in any application including, but not limited to, DNA sequencing reactions, amplification reactions, cDNA synthesis reactions, and combined cDNA synthesis and amplification reactions, e.g., RT-PCR.
摘要:
The invention relates to reverse transcriptases which have increased fidelity (or reduced misincorporation rate) and/or terminal deoxynucleotidyl transferase activity. In particular, the invention relates to a method of making such reverse transcriptases by modifying or mutating specified positions in the reverse transcriptases. The invention also relates to nucleic acid molecules containing the genes encoding the reverse trancriptases of the invention, to host cells containing such nucleic acid molecules and to methods to make the reverse trancriptases using the host cells. The reverse transcriptases of the invention are particularly suited for nucleic acid synthesis, sequencing, amplification and cDNA synthesis.
摘要:
A method and apparatus for characterizing the type of a blood sample and a variety of blood components are provided wherein a transmission spectrum of the sample is collected over a predetermined wavelength range. For blood typing, this spectrum is then compared with a set of control spectra collected from control blood samples having known blood types, from which the type of the blood sample can be determined. Further methods and apparatus are provided for determining the viability of and for cross matching a platelet unit. Additional method and apparatus permit analysis of the sample for the presence of a contaminant. Particles can also be counted in the sample, even when present in low concentrations, including white blood cell.
摘要:
A thermostable DNA polymerase composition comprising at least two DNA polymerases, one of which is substantially reduced in 5′-exonuclease activity and one of which has 5′-exonuclease activity. This polymerase may be used in methods including, but not limited to, nucleic acid synthesis, DNA sequencing, nucleic acid amplification and cDNA synthesis,
摘要:
Disclosed are methods and materials for enhancing the efficiency, specificity and/or specificity of nucleic acid amplification reactions (e.g., PCR amplification reactions). The disclosed inventions involve the use of nonspecific double-stranded DNA binding proteins in amplification reactions. The methods described herein are useful in a wide variety of molecular biology applications including allele specific PCR.
摘要:
The invention relates generally to affinity peptides having binding activity for metal ion affinity chromatography media. The invention further relates to vectors which encode these affinity peptides and use of these affinity peptides for the purification of biological molecules such as proteins. The invention also relates to fusion proteins comprising affinity peptides of the invention.
摘要:
A prepaid wagering card and a system and method for playing the lottery over a telephone line using the prepaid wagering card are provided. The prepaid wagering card includes information that makes it convenient to obtain the prepaid wagering card and use it to wager sets of numbers listed thereon, while also ensuring that the information remains secure. Participating in a lottery using the prepaid wagering card simply involves calling a wagering system from a telephone and providing requested information. Thus, a user can purchase a prepaid wagering card and decide on which scheduled lottery to actually wager using the prepaid wagering card.