Abstract: The invention relates to a microfluidic system comprising: a) a solid support comprising at least a first group of oligonucleotides, i. wherein each oligonucleotide in said group comprises a nucleic acid sequence of a first type, of a second type and/or a further type, ii. wherein said nucleic acid sequence of a first type is a barcode sequence, iii. and oligonucleotides comprising the same barcode sequence are grouped together in a group of oligonucleotides on said solid support, iv. wherein the first and further oligonucleotide groups are spatially separated on said solid support, b) wherein said one or more groups of oligonucleotide groups on said solid support are within separate reservoirs of the microfluidics system, c) wherein the one or more reservoirs are accessible to fluids, cells, chemicals and/or microdroplet by means of channels, and d) wherein each reservoir comprises comprising a group of oligonucleotides on said solid support is also trap for a microfluidic droplet.

Abstract: The present invention relates to a method for analyzing and selecting a specific droplet among a plurality of droplets (4), comprising the following steps: —providing a plurality of droplets (4), —for a droplet (4) among the plurality of droplets, measuring at least two optical signals, each optical signal being representative of a light intensity spatial distribution in the droplet for an associated wavelength channel, —calculating a plurality of parameters from the optical signals, —determining a sorting class for a droplet according to calculated parameters, —sorting said droplet according to its sorting class, wherein the plurality of parameters comprises the coordinates of a maximum for each optical signal and a co-localization parameter and the at least two calculated parameters used for the determining step comprises the co-localization parameter.

Abstract: A first aspect of the invention refers to a method for producing a hydrogel microsphere, the method comprising the steps of: a. generating by means of a capillary a droplet of controlled size of a first fluid in a gaseous phase, b. dispensing said droplet of a first fluid into a recipient comprising a second fluid, wherein the first fluid is immiscible with the second fluid and wherein the density of the second fluid is lower than the density of the first fluid, c. contacting the droplet of the first fluid with the second fluid, thereby producing a hydrogel microsphere, d. recovering the hydrogel microsphere from the second fluid for storage. A second aspect of the nvention is directed to a hydrogel microsphere obtainable by the method according to the first aspect of the invention. A further aspect of the invention refers to a system for producing a hydrogel microsphere according to any of the second and third aspect.

Abstract: The present invention concerns processes for barcoding nucleic acids from single cells and processes for genotyping ingle cells having a phenotype of interest.

Abstract: The present invention relates to a method for analyzing and selecting a specific droplet among a plurality of droplets (4), comprising the following steps: —providing a plurality of droplets (4), —for a droplet (4) among the plurality of droplets, measuring at least two optical signals, each optical signal being representative of a light intensity spatial distribution in the droplet for an associated wavelength channel, —calculating a plurality of parameters from the optical signals, —determining a sorting class for a droplet according to calculated parameters, —sorting said droplet according to its sorting class, wherein the plurality of parameters comprises the coordinates of a maximum for each optical signal and a co-localization parameter and the at least two calculated parameters used for the determining step comprises the co-localization parameter.

Abstract: The present invention concerns processes for barcoding nucleic acids from single cells and processes for genotyping single cells having a phenotype of interest.

Abstract: The invention relates to a process for manufacturing a microfluidic chip comprising a solid material obtained from a sol-gel solution, the process comprising successively: a) casting a sol-gel solution made with tetraethyl orthosilicate onto a mold presenting a relief pattern and having a different thickness over the whole of the mold; b) gelling the sol-gel solution; c) unmolding and drying the gel obtained in b), so as to obtain a solid glass; and d) bonding said solid glass to a support, so as to obtain the microfluidic chip.

Abstract: The present invention concerns processes for barcoding nucleic acids from single cells and processes for genotyping single cells having a phenotype of interest.

Abstract: The present invention relates to a method for analyzing and selecting a specific droplet among a plurality of droplets (4), comprising the following steps: —providing a plurality of droplets (4), —for a droplet (4) among the plurality of droplets, measuring at least two optical signals, each optical signal being representative of a light intensity spatial distribution in the droplet for an associated wavelength channel, —calculating a plurality of parameters from the optical signals, —determining a sorting class for a droplet according to calculated parameters, —sorting said droplet according to its sorting class, wherein the plurality of parameters comprises the coordinates of a maximum for each optical signal and a co-localization parameter and the at least two calculated parameters used for the determining step comprises the co-localization parameter.

Abstract: The present invention concerns a method for capturing and barcoding nucleic acid from single cells, a plurality of microfluidic droplets and a method for preparing said plurality of microfluidic droplets.