摘要:
Methods are provided for reducing background signals encountered in nucleic acid hybridization assays and other assays that involve hybridization of a labeled oligomer to its complement. The method is premised on the significant reduction of signal generation that occurs when a quenchable dye-labeled oligomer forms a hybrid complex. In addition, a method is provided for enhancing the detectable signal emitted from an amplification multimer hybridized to an oligomer probe to which a quenchable dye has been conjugated through a linker such that the emission from the dye is not quenched upon hybrid complex formation. Novel oligonucleotide probes are also provided that comprise an oligomer to which has been directly or indirectly through a linker a quenchable dye.
摘要:
Methods are provided for substantially reducing background signals encountered in nucleic acid hybridization assays. The method is premised on the elimination or significant reduction of the phenomenon of nonspecific hybridization, so as to provide a detectable signal which is produced only in the presence the target polynucleotide of interest. In addition, a novel method for the chemical synthesis of isoguanosine or 2'-deoxy-isoguanosine is provided. The invention also has applications in antisense and aptamer therapeutics and drug discovery.
摘要:
Methods are provided for substantially reducing background signals encountered in nucleic acid hybridization assays. The method is premised on the elimination or significant reduction of the phenomenon of nonspecific hybridization, so as to provide a detectable signal which is produced only in the presence the target polynucleotide of interest. In addition, a novel method for the chemical synthesis of isoguanosine or 2'-deoxy-isoguanosine is provided. The invention also has applications in antisense and aptamer therapeutics and drug discovery.
摘要:
Methods are provided for substantially reducing background signals encountered in nucleic acid hybridization assays. The method is premised on the elimination or significant reduction of the phenomenon of nonspecific hybridization, so as to provide a detectable signal which is produced only in the presence the target polynucleotide of interest. In addition, a novel method for the chemical synthesis of isoguanosine or 2′-deoxy-isoguanosine is provided. The invention also has applications in antisense and aptamer therapeutics and drug discovery.
摘要:
A fuel cell arrangement operable in environments that are prone to explosions including a fuel cell stack 14 that is housed in a containment vessel 15 filled with a heat equalizing fluid 26 and provided with a cooling system. The heat equalizing fluid 26 flows around all sides of the fuel cell stack 14 and prevents a direct concentrated heat transfer from the surface of the fuel cell stack 14 to the containment housing 15. The heat equalizing fluid 26 buffers and distributes local heat peaks originating from the fuel cell stack 14 and thus eliminates ignition sources.
摘要:
One aspect of the invention relates to a system for and a method of monitoring a plurality of transceivers located in an area, e.g. a patch panel, to be monitored.In accordance with an aspect of the invention, there is provided a method for monitoring a plurality of transceivers located in an area to be monitored. The method includes enabling one transceiver of the plurality of transceivers. The method also includes disabling all other transceivers of the plurality of transceivers. A transmit coil emits a high frequency electromagnetic field, the one transceiver transmitting a signal in response to the field of the transmit coil. At least one of a plurality of reader coils receives the signal transmitted by the one transceiver, the plurality of reader coils being suitably arranged in the vicinity of the area to be monitored. An evaluator determines a position of the one transceiver from the signal received from the one transceiver by the at least one of the plurality of reader coils.
摘要:
The pharmaceutical composition is useful for treating epithelial tumors in a subject and contains at least two antigens and a pharmaceutically acceptable carrier, where each of the antigens induces or is capable of inducing a cutaneous delayed type hypersensitivity (DTH) response in the subject. This composition is particularly useful in treating epithelial tumors, such as warts or verrucae, that are induced by or related to papillomavirus. Antigens useful in the present pharmaceutical composition are anergy panel antigens, such as killed mumps virus, candida extract, trichophyton extract or comparable antigenic extracts. An additional pharmaceutical composition, also useful for treating epithelial tumors, contains at least one antigen that induces or is capable of inducing a cutaneous DTH response in a subject, at least one cytokine or colony stimulating factor and a pharmaceutically acceptable carrier. Kits containing these pharmaceutical compositions are useful for this immunotherapy.
摘要:
A pulse width modulated solenoid system having low noise characteristics is described. Noise reduction is primarily achieved by separating the solenoid device from the insulator and the manifold housing through the use of rubber isolators and multiple sets of o-rings, thus preventing metal to metal contact. Additional noise reduction is achieved by encapsulating all of the solenoids, using the insulator, the cover plate, the housing, and the screen carrier. Noise levels are also further reduced by minimizing the impact force of the armature against the sleeve by allowing fluid to vent into the upper area of the sleeve, thus causing a dampening effect.
摘要:
Linear or branched oligonucleotide multimers useful as amplifiers in biochemical assays which comprise (1) at least one first single-stranded oligonucleotide unit that is complementary to a single-stranded oligonucleotide sequence of interest, and (2) a multiplicity of second single-stranded oligonucleotide units that are complementary to a single-stranded labeled oligonucleotide. Amplified sandwich nucleic acid hybridizations and immunoassays using the multimers are exemplified.
摘要:
Molecules having potential biological activity, particularly peptoids, that are conjugated to solid phase supports, spacer groups, and/or ligation moieties, and methods of their preparation, are described. In some instances, the molecules of the invention are made entirely by solid phase synthesis. In other instances, the spacer groups are hydrophilic and compositions containing them, and to solid phase synthesis of varied structure peptoids using chemoselective ligation moieties.