The present invention relates to a method which prevents undesirable binding of ddNTPs to double stranded polynucleotides when in the presence of a polymerase. Such methods may be used to prevent the appearance of false positives in methods employing ddNTPs, e.g. in sequence detection methods. The present invention also provides a method of avoiding a false Tm reading or false FRET effects (such as false positive quenching), for example in a melting curve analysis method. In particular a method is provided in which a target nucleotide sequence in a test polynucleotide is detected using a method in which a double stranded molecule is generated which may or may not comprise two labels depending on whether the target sequence is present in which the presence of the two labels is determined, preferably by performing a melting curve analysis.

The present invention relates to a method which prevents undesirable binding of ddNTPs to double stranded polynucleotides when in the presence of a polymerase. Such methods may be used to prevent the appearance of false positives in methods employing ddNTPs, e.g. in sequence detection methods. The present invention also provides a method of avoiding a false Tm reading or false FRET effects (such as false positive quenching), for example in a melting curve analysis method. In particular a method is provided in which a target nucleotide sequence in a test polynucleotide is detected using a method in which a double stranded molecule is generated which may or may not comprise two labels depending on whether the target sequence is present in which the presence of the two labels is determined, preferably by performing a melting curve analysis.

The present disclosure provides reactive quencher dyes that can be used in the detection and/or quantification of desirable target molecules, such as proteins, nucleic acids and various cellular organelles. These dyes are essentially non-fluorescent but are efficient quenchers of various fluorescent dyes. Also, provided are methods of using the dyes, bio-probes incorporating dyes and methods of using the bio-probes. The quencher dyes described herein are modified to provide beneficial properties.

Methods are provided for nucleic acid analysis wherein a target nucleic acid that is at least partially double stranded is mixed with a dsDNA binding dye having a percent saturation of at least 50% to form a mixture. In one embodiment, the nucleic acid is amplified in the presence of the dsDNA binding dye, and in another embodiment a melting curve is generated for the target nucleic acid by measuring fluorescence from the dsDNA binding dye as the mixture is heated. Dyes for use in nucleic acid analysis and methods for making dyes are also provided.

Methods are provided for nucleic acid analysis wherein a target nucleic acid that is at least partially double stranded is mixed with a dsDNA binding dye having a percent saturation of at least 50% to form a mixture. In one embodiment, the nucleic acid is amplified in the presence of the dsDNA binding dye, and in another embodiment a melting curve is generated for the target nucleic acid by measuring fluorescence from the dsDNA binding dye as the mixture is heated. Dyes for use in nucleic acid analysis and methods for making dyes are also provided.

This invention provides methods and systems for measuring the concentration of multiple nucleic acid sequences in a sample. The nucleic acid sequences in the sample are simultaneously amplified, for example, using polymerase chain reaction (PCR) in the presence of an array of nucleic acid probes. The amount of amplicon corresponding to the multiple nucleic acid sequences can be measured in real-time during or after each cycle using a real-time microarray. The measured amount of amplicon produced can be used to determine the original amount of the nucleic acid sequences in the sample. Also provided herein are biosensor arrays, systems and methods for affinity based assays that are able to simultaneously obtain high quality measurements of the binding characteristics of multiple analytes, and that are able to determine the amounts of those analytes in solution. The invention also provides a fully integrated bioarray for detecting real-time characteristics of affinity based assays.

This invention provides methods and systems for measuring the concentration of multiple nucleic acid sequences in a sample. The nucleic acid sequences in the sample are simultaneously amplified, for example, using polymerase chain reaction (PCR) in the presence of an array of nucleic acid probes. The amount of amplicon corresponding to the multiple nucleic acid sequences can be measured in real-time during or after each cycle using a real-time microarray. The measured amount of amplicon produced can be used to determine the original amount of the nucleic acid sequences in the sample. Also provided herein are biosensor arrays, systems and methods for affinity based assays that are able to simultaneously obtain high quality measurements of the binding characteristics of multiple analytes, and that are able to determine the amounts of those analytes in solution. The invention also provides a fully integrated bioarray for detecting real-time characteristics of affinity based assays.

The invention relates to a method for the specific detection of a microorganism or a group of microorganisms via in situ hybridisation by means of flow cytometry.

The invention relates to a method for the specific detection of a microorganism or a group of microorganisms via in situ hybridisation by means of flow cytometry.

The present disclosure provides methods and systems for sequencing nucleic acid molecules in a manner that enables higher sequencing accuracy. Methods and systems provided herein may enable sequences that may have low-accuracy reads, such as homopolymer sequences or other repeating sequences, to be determined at a higher accuracy and efficiency.