Disclosed herein are highly multiplexed methods of detecting single target analytes, including complexes, with improved accuracy using a proximity binding assay and single molecule cycled detection.

Very simple, highly sensitive detection or quantification of target nucleic acids of interest has been achieved by: hybridizing mask oligonucleotides to regions in a single-stranded region of a nucleic acid to be assayed between which a region to be hybridized by an oligonucleotide probe is positioned, thereby opening the probe-hybridizing region and keeping the single-stranded region of the target nucleic acid stable, and then subjecting this nucleic acid having the single-stranded region to nucleic acid chromatography.

Very simple, highly sensitive detection or quantification of target nucleic acids of interest has been achieved by: hybridizing mask oligonucleotides to regions in a single-stranded region of a nucleic acid to be assayed between which a region to be hybridized by an oligonucleotide probe is positioned, thereby opening the probe-hybridizing region and keeping the single-stranded region of the target nucleic acid stable, and then subjecting this nucleic acid having the single-stranded region to nucleic acid chromatography.

The technology provided herein relates to multiplex methods and kits for detecting different analytes and different subgroups/variations of an analyte in a sample, for example in parallel by sequential signal-encoding of said analytes, as well as in vitro methods for screening, identifying and/or testing a substance and/or drug and in vitro methods for diagnosis of a disease, and an optical multiplexing system.

The technology provided herein relates to multiplex methods and kits for detecting different analytes and different subgroups/variations of an analyte in a sample, for example in parallel by sequential signal-encoding of said analytes, as well as in vitro methods for screening, identifying and/or testing a substance and/or drug and in vitro methods for diagnosis of a disease, and an optical multiplexing system.

A structural molecular building block is provided and includes first structural molecules arranged in a three-dimensional structure and second structural molecules. Each of the second structural molecules is attached at a first region thereof to one of the first structural molecules to form the three-dimensional structure into a tessellating molecular building block and has a second region thereof for connection to a corresponding structural molecule of an additional tessellating molecular building block. The second structural molecules facilitate tessellation of the tessellating molecular building block with additional tessellating molecular building blocks to encourage growth of a macroscopic crystal.

A structural molecular building block is provided and includes first structural molecules arranged in a three-dimensional structure and second structural molecules. Each of the second structural molecules is attached at a first region thereof to one of the first structural molecules to form the three-dimensional structure into a tessellating molecular building block and has a second region thereof for connection to a corresponding structural molecule of an additional tessellating molecular building block. The second structural molecules facilitate tessellation of the tessellating molecular building block with additional tessellating molecular building blocks to encourage growth of a macroscopic crystal.

A method of detecting a target molecule, the method comprising: forming a complex of a target molecule, a capture oligonucleotide, an oligonucleotide primer, and a single-stranded circular DNA; performing a nucleic acid amplification reaction by rolling circle amplification based on the formation of the complex; and detecting amplified nucleic acid; wherein the single-stranded circular DNA contains a first region, and a second region linked to the 3′-side of the first region, and preferably further contains a sequence complementary to a detection reagent-binding sequence; the primer contains a first aptamer sequence which binds to the target molecule, and a sequence which is linked to the 3′-side of the first aptamer sequence and is complementary to the first region of the single-stranded circular DNA; and the capture oligonucleotide contains a sequence complementary to the second region of the single-stranded circular DNA, and a second aptamer sequence which is linked to the 3′-side of the sequence complementary to the second region and binds to the target molecule.

A method of detecting a target molecule, the method comprising: forming a complex of a target molecule, a capture oligonucleotide, an oligonucleotide primer, and a single-stranded circular DNA; performing a nucleic acid amplification reaction by rolling circle amplification based on the formation of the complex; and detecting amplified nucleic acid; wherein the single-stranded circular DNA contains a first region, and a second region linked to the 3′-side of the first region, and preferably further contains a sequence complementary to a detection reagent-binding sequence; the primer contains a first aptamer sequence which binds to the target molecule, and a sequence which is linked to the 3′-side of the first aptamer sequence and is complementary to the first region of the single-stranded circular DNA; and the capture oligonucleotide contains a sequence complementary to the second region of the single-stranded circular DNA, and a second aptamer sequence which is linked to the 3′-side of the sequence complementary to the second region and binds to the target molecule.

The invention relates to new methods for synthesising polynucleotide molecules according to a predefined nucleotide sequence. The invention also relates to methods for the assembly of synthetic polynucleotides following synthesis, as well as systems and kits for performing the synthesis and/or assembly methods.