Enantiomeric pairs of molecular wires comprised of oligomeric nucleic acids, wherein the oligomers of each wire possess identical nucleobase pair sequences and thus identical conductivity as between wires, are constructed and used to sense biological or chemical entities of interest at the cellular or molecular level. The oligomeric molecular wires conduct voltage inputs to sensing subsystem integrated circuitry, either from an electrostatic potential arising from a targeting agent (i.e., a capture agent) binding to an intended biological or chemical target molecule, or from an electrostatic potential associated with a reference molecule that has non-specific interactions with the environment. The chirality of the oligomers imparts selectivity to either the targeting agent or the reference molecule during assembly of the sensing subsystem.

The disclosure provides methods and systems for nucleic acid amplification including isothermal nucleic acid amplification.

The disclosure provides methods and systems for nucleic acid amplification including isothermal nucleic acid amplification.

A technique that uses nanotechnology to electrically detect and identify RNA sequences without the need for using enzymatic amplification methods or fluorescent labels. The technique may be scaled into large multiplexed arrays for high-throughput and rapid screening. The technique is further able to differentiate closely related variants of a given bacterial or viral species or strain. This technique addresses the need for a quick, efficient, and inexpensive bacterial and viral detection and identification system.

A technique that uses nanotechnology to electrically detect and identify RNA sequences without the need for using enzymatic amplification methods or fluorescent labels. The technique may be scaled into large multiplexed arrays for high-throughput and rapid screening. The technique is further able to differentiate closely related variants of a given bacterial or viral species or strain. This technique addresses the need for a quick, efficient, and inexpensive bacterial and viral detection and identification system.

The invention relates to a prenatal diagnostic method for the determination of a fetal chromosomal aneuploidy in a biological sample obtained from a pregnant woman, which method comprises enrichment and quantification of selected cell-free deoxyribonucleic acid sequences showing consensus nucleosome binding regions.

The invention relates to a prenatal diagnostic method for the determination of a fetal chromosomal aneuploidy in a biological sample obtained from a pregnant woman, which method comprises enrichment and quantification of selected cell-free deoxyribonucleic acid sequences showing consensus nucleosome binding regions.

Provided herein are methods of detecting target analytes, such as nucleic acids, for example microRNAs using an enhanced Tyramide Signal Amplification (TSA) method that employs probes tagged with tyramide-binding groups to amplify the effects of the TSA. The accessibility of the tyramide-binding groups, such as hydroxyphenyl groups, provides for large improvements in signal due to faster reaction with the radicals. The present invention further includes the application of the assay for detecting specific microRNAs.

Provided herein are methods of detecting target analytes, such as nucleic acids, for example microRNAs using an enhanced Tyramide Signal Amplification (TSA) method that employs probes tagged with tyramide-binding groups to amplify the effects of the TSA. The accessibility of the tyramide-binding groups, such as hydroxyphenyl groups, provides for large improvements in signal due to faster reaction with the radicals. The present invention further includes the application of the assay for detecting specific microRNAs.

This invention is related to novel PNA probes, probe sets, methods and kits pertaining to the detection of one or more species of Candida yeast. Non-limiting examples of probing nucleobase sequences that can be used for the probes of this invention can be selected from the group consisting of: AGA-GAG-CAG-CAT-GCA (Seq. Id. No. 1), AGA-GAG-CAA-CAT-GCA (Seq. Id. No. 2), ACA-GCA-GAA-GCC-GTG (Seq. Id. No. 3), CAT-AAA-TGG-CTA-CCA-GA (Seq. Id. No. 4), CAT-AAA-TGG-CTA-CCC-AG (Seq. Id. No. 5), ACT-TGG-AGT-CGA-TAG (Seq. Id. No. 6), CCA-AGG-CTT-ATA-CTC-GC (Seq. Id. No. 7), CCC-CTG-AAT-CGG-GAT (Seq. Id. No. 8), GAC-GCC-AAA-GAC-GCC (Seq. Id. No. 9), ATC-GTC-AGA-GGC-TAT-AA (Seq. Id. No. 10), TAG-CCA-GAA-GAA-AGG (Seq. Id. No. 11), CAT-AAA-TGG-CTA-GCC-AG (Seq. Id. No. 12), CTC-CGA-TGT-GAC-TGC-G (Seq. Id. No. 13), TCC-CAG-ACT-GCT-CGG (Seq. Id. No. 14), TCC-AAG-AGG-TCG-AGA (Seq. Id. No. 15), GCC-AAG-CCA-CAA-GGA (Seq. Id. No. 16), GCC-GCC-AAG-CCA-CA (Seq. Id. No. 17), GGA-CTT-GGG-GTT-AG (Seq. Id. No. 18), CCG-GGT-GCA-TTC-CA (Seq. Id. No. 19), ATG-TAG-AAC-GGA-ACT-A (Seq. Id. No. 20), GAT-TCT-CGG-CCC-CAT-G (Seq. Id. No. 21), CTG-GTT-CGC-CAA-AAA-G (Seq. Id. No. 22) and AGT-ACG-CAT-CAG-AAA (Seq. Id. No. 23).