Devices and methods for carrying out chemical reactions...

B - Operations – Transporting – 01 – J

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B01J 19/00 (2006.01) B01L 3/00 (2006.01)

Patent

CA 2415258

Fluidic methods and devices for conducting parallel chemical reactions are disclosed. The methods are based on the use of in situ photogenerated reagents such as photogenerated acids, photogenerated bases, or any other suitable chemical compounds that produce active reagents upon light radiation. The present invention describes devices and methods for performing a large number of parallel chemical reactions without the use of a large number of valves, pumps, and other complicated fluidic components. The present invention provides microfluidic devices that contain a plurality of microscopic vessels for carrying out discrete chemical reactions. Other applications may include the preparation of microarrays of DNA and RNA oligonucleotides, peptides, oligosacchrides, phospholipids and other biopolymers on a substrate surface for assessing gene sequence information, screening for biological and chemical activities, identifying intermolecular complex formation, and determining structural features of molecular complexes.

L'invention concerne des procédés et des dispositifs fluidiques permettant de réaliser des réactions chimiques parallèles. Ces procédés consistent à utiliser des réactifs photogénérés sur place, tels que des acides photogénérés, des bases photogénérées, ou n'importe quel autre composé chimique approprié produisant des réactifs actifs par rayonnement lumineux. La présente invention concerne des dispositifs et des procédés permettant de réaliser un grand nombre de réactions chimiques parallèles sans utiliser un grand nombre de valves ou de pompes ni aucun autre composant fluidique compliqué. L'invention concerne des dispositifs microfluidiques contenant une multitude de récipients microscopiques conçus pour réaliser des réactions chimiques discrètes. D'autres applications peuvent consister à préparer des microréseaux d'oligonucléotides d'ADN et d'ARN, des microréseaux de peptides, d'oligosaccharides, de phospholipides et d'autres biopolymères sur une surface d'un substrat afin d'analyser les informations relatives aux séquences géniques, de procéder au criblage à des fins biologiques et chimiques, d'identifier des formations de complexes intermoléculaires, et de déterminer les caractéristiques de structure des complexes moléculaires.

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