Methods for sampling reactor contents in parallel reactor systems are disclosed. The methods may be used to sample reactor contents in non-atmospheric (e.g., pressurized) reaction vessels.

Provided in the present invention are a method for constructing a nucleic acid single-stranded cyclic library and reagents thereof. The method comprises the steps of using a transposase embedding complex to randomly break nucleic acids and connect a first linker; connecting a second linker at a gap; performing a first PCR reaction, wherein the 5 end of one of the primers has a first affinity tag, resulting in a product with two ends connected to different linker sequences; binding the product to a solid vector having a second affinity tag; degenerating and separating single strands having no affinity tag; and cyclizing the single strands.

Provided are an isolated oligonucleotide and a use thereof in nucleic acid sequencing, wherein the isolated oligonucleotide comprises a first strand, wherein the 5-end nucleotide of the first strand has a phosphate group, and the 3-end nucleotide of the first strand is a dideoxynucleotide, and a second strand, wherein the 5-end nucleotide of the second strand does not have a phosphate group, and the 3-end nucleotide of the second strand is a dideoxynucleotide, wherein the first strand is longer than the second strand in length, and a double-stranded structure is formed between the first strand and the second strand.

Provided are an isolated oligonucleotide and a use thereof in nucleic acid sequencing, wherein the isolated oligonucleotide comprises a first strand, wherein the 5-end nucleotide of the first strand has a phosphate group, and the 3-end nucleotide of the first strand is a dideoxynucleotide, and a second strand, wherein the 5-end nucleotide of the second strand does not have a phosphate group, and the 3-end nucleotide of the second strand is a dideoxynucleotide, wherein the first strand is longer than the second strand in length, and a double-stranded structure is formed between the first strand and the second strand.

A method of synthesis of a nucleotide chain, the nucleotide chain including an ordered plurality of nucleotides, the method including: identifying a first nucleotide of the ordered plurality of nucleotides; controlling a polymerase enzyme to assemble the first nucleotide onto the nucleotide chain by electrically modulating an electrode; identifying a subsequent nucleotide in the ordered plurality of nucleotides as a current nucleotide; and controlling the polymerase enzyme to assemble the current nucleotide onto an end of the nucleotide chain by electrically modulating the electrode.

An array of transportable particle sets is used in a microfluidic device for performing chemical reactions in the microfluidic device. The microfluidic device comprises a main channel and intersecting side channels, the main channel and side channels forming a plurality of intersections. The array of particle sets is disposed in the main channel, and the side channels are coupled to reagents. As the particle sets are transported through the intersections of the main channel and the side channels, reagents are flowed through the side channels into contact with each array member (or selected array members), thereby providing a plurality of chemical reactions in the microfluidic system.

Provided are a vesicular linker and a single-chain cyclic library constructed by using the linker. The library can be used for RNA sequencing and other sequencing platforms dependent on a single-stranded cyclic library, and has the advantages of high throughput sequencing, high accuracy and simple operations.

For the combinatorial synthesis of molecule libraries, substances are embedded in a matrix consisting of a first solvent thereby forming transport units in a solid state of aggregation at a temperature of less than 90 C. and wherein after application to a support, the physical environment of the transport units is modified by the application of a physical process such as a laser printer whereby the substances in the transport units are linked to the support.

A substrate for use in mass spectrometric analyzes having an array of target locations.

An array of transportable particle sets is used in a microfluidic device for performing chemical reactions in the microfluidic device. The microfluidic device comprises a main channel and intersecting side channels, the main channel and side channels forming a plurality of intersections. The array of particle sets is disposed in the main channel, and the side channels are coupled to reagents. As the particle sets are transported through the intersections of the main channel and the side channels, reagents are flowed through the side channels into contact with each array member (or selected array members), thereby providing a plurality of chemical reactions in the microfluidic system.