Abstract: Provided herein are compositions and methods for the detection of Streptococcus agalacticae.

Abstract: A heat-stable nuclease found in Y. enterocolitica subsp. Palearctica, named Nucyep, is active in broad spectrum conditions. The gene for Nucyep was sequenced in a strain Y. enterocolitica subsp. palearctica, cloned, and expressed in E. coli, and then purified and characterized. The molecular weight of this enzyme is about 30 to 32 kDa. The translation product, Nucyep1, is biologically active. The purified Nucyep1 exhibits non-specific nuclease activity, being able to degrade various nucleic acids, including RNA, single-stranded DNA (ssDNA) and linear or circular double-stranded DNA (dsDNA). This enzyme is active in a wide range of temperatures, from 0 to 100° C. The enzyme is active in a wide range of pH values from 3.6 to 9.9, and keeps greater than 75% of the activity at pH 7.24. This enterobacterial nuclease has unique levels of intrinsic resistance to heat, and is active under a large spectrum of conditions.

Abstract: Provided herein are compositions and methods for the detection of Streptococcus agalacticae.

Abstract: Provided herein are compositions and methods for the detection of Streptococcus agalacticae.

Abstract: Compositions and methods for the detection of vancomycin-resistant pathogens using primers and/or probes to the vanA and vanB genes.

Abstract: An optical sensor for detecting a target comprising a singlestranded aptamer complementary to said target, and a water-soluble cationic polythiophene derivative of the following formula: wherein “n” is an integer ranging from 6 to 100, is disclosed. The optical sensor allows for the detection of targets selected from the group consisting of potassium ions, small organic molecules, amino acids, proteins, whole cells and nucleotides. The detection is based on the formation of hybrid anionic aptamer/cationic poly-thiophene complexes.

Abstract: Four highly conserved genes, encoding translation elongation factor Tu, translation elongation factor G, the catalytic subunit of proton-translocating ATPase and the RecA recombinase, are used to generate species-specific, genus-specific, family-specific, group-specific and universal nucleic acid probes and amplification primers to rapidly detect and identify algal, archaeal, bacterial, fungal and parasitical pathogens from clinical specimens for diagnosis. The detection of associated antimicrobial agents resistance and toxin genes are also under the scope of the present invention.

Abstract: This invention relates to reagent comprising: any one of cells, viral particles, organelles, parasites, cells comprising organelles, cells comprising viral particles, cells comprising parasites, cells comprising bacterial cells and any combination thereof, the cells, viral particles, organelles or parasites comprising at least one nucleic acid sequence serving as an internal control (IC) target for nucleic acid testing (NAT) assay; wherein the reagent is suitable to be added to a test sample undergoing sample preparation to release, concentrate and/or purify nucleic acids and amplification and/or detection of nucleic acids so as to be used to verify: (i) the efficiency of sample preparation; and (ii) the efficiency of nucleic acid amplification and/or detection. The present invention also relates to a method to verify or validate the preparation and amplification and/or detection of a nucleic acid target sequence in a sample spiked with a reagent of the present invention.

Abstract: Four highly conserved genes, encoding translation elongation factor Tu, translation elongation factor G, the catalytic subunit of proton-translocating ATPase and the RecA recombinase, are used to generate species-specific, genus-specific, family-specific, group-specific and universal nucleic acid probes and amplification primers to rapidly detect and identify algal, archaeal, bacterial, fungal and parasitical pathogens from clinical specimens for diagnosis. The detection of associated antimicrobial agents resistance and toxin genes are also under the scope of the present invention.

Abstract: Four highly conserved genes, encoding translation elongation factor Tu, translation elongation factor G, the catalytic subunit of proton-translocating ATPase and the RecA recombinase, are used to generate species-specific, genus-specific, family-specific, group-specific and universal nucleic acid probes and amplification primers to rapidly detect and identify algal, archaeal, bacterial, fungal and parasitical pathogens from clinical specimens for diagnosis. The detection of associated antimicrobial agents resistance and toxin genes are also under the scope of the present invention.

Abstract: Compositions and methods for the detection of vancomycin-resistant pathogens using primers and/or probes to the vanA and vanB genes.

Abstract: The present invention is directed to the recovery of bacteria and microparasites, particularly Cryptosporidium and Giardia, from water samples by filtration through a mixed cellulose ester membrane, partial dissolution of said membrane with methanol followed by completion in the presence of acetone, and purification and concentration using glass beads as a secondary confinement matrix.

Abstract: The present invention relates to methods of detection, as well as assays, reagents and kits for the specific detection of clinically important bacterial and fungal species. The present invention allows for the specific detection of nucleic acids of each of these pathogens in a single assay.

Abstract: Novel methods allowing for the simple optical and electrochemical detection of double-stranded oligonucleotides are disclosed. The methods are rapid, selective and versatile. Advantageously, they do not require any chemical reaction on the probes or on the analytes since they are based on different electrostatic interactions between cationic poly(3-alkoxy-4-methylthiophene) derivatives and single-stranded or double-stranded (hybridized) oligonucleotides.

Abstract: Novel methods allowing for the simple optical and electrochemical detection of double-stranded oligonucleotides are disclosed. The methods are rapid, selective and versatile. Advantageously, they do not require any chemical reaction on the probes or on the analytes since they are based on different electrostatic interactions between cationic poly(3-alkoxy-4-methylthiophene) derivatives and single-stranded or double-stranded (hybridized) oligonucleotides.

Abstract: The present invention relates to methods of detection, as well as assays, reagents and kits for the specific detection of 15 clinically important respiratory viruses including influenza A and B viruses, human respiratory syncytial viruses, human metapneumoviruses, human enteroviruses, all serotypes of rhinoviruses, 7 serotypes of adenoviruses, parainfluenza viruses types 1, 2, 3, and 4, as well as coronaviruses NL, 229E, OC43, and SARS-CoV. The present invention allows for the detection of each of these respiratory viruses in a single assay.

Abstract: Compositions and methods for the detection of vancomycin-resistant pathogens using primers and/or probes to the vanA and vanB genes.

Abstract: This invention relates to reagent comprising: any one of cells, viral particles, organelles, parasites, cells comprising organelles, cells comprising viral particles, cells comprising parasites, cells comprising bacterial cells and any combination thereof, the cells, viral particles, organelles or parasites comprising at least one nucleic acid sequence serving as an internal control (IC) target for nucleic acid testing (NAT) assay; wherein the reagent is suitable to be added to a test sample undergoing sample preparation to release, concentrate and/or purify nucleic acids and amplification and/or detection of nucleic acids so as to be used to verify: (i) the efficiency of sample preparation; and (ii) the efficiency of nucleic acid amplification and/or detection. The present invention also relates to a method to verify or validate the preparation and amplification and/or detection of a nucleic acid target sequence in a sample spiked with a reagent of the present invention.

Abstract: This invention relates to reagent comprising: any one of cells, viral particles, organelles, parasites, cells comprising organelles, cells comprising viral particles, cells comprising parasites, cells comprising bacterial cells and any combination thereof, the cells, viral particles, organelles or parasites comprising at least one nucleic acid sequence serving as an internal control (IC) target for nucleic acid testing (NAT) assay; wherein the reagent is suitable to be added to a test sample undergoing sample preparation to release, concentrate and/or purify nucleic acids and amplification and/or detection of nucleic acids so as to be used to verify: (i) the efficiency of sample preparation; and (ii) the efficiency of nucleic acid amplification and/or detection. The present invention also relates to a method to verify or validate the preparation and amplification and/or detection of a nucleic acid target sequence in a sample spiked with a reagent of the present invention.

Abstract: Novel methods allowing for the simple optical and electrochemical detection of double-stranded oligonucleotides are disclosed. The methods are rapid, selective and versatile. Advantageously, they do not require any chemical reaction on the probes or on the analytes since they are based on different electrostatic interactions between cationic poly(3-alkoxy-4-methylthiophene) derivatives and single-stranded or double-stranded (hybridized) oligonucleotides.