The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 23, 2017

Filed:

Jun. 16, 2009
Applicants:

Daniel Palmer, Cardiff, GB;

Richard Calder, Cardiff, GB;

Owen Shadick, Cardiff, GB;

Inventors:

Daniel Palmer, Cardiff, GB;

Richard Calder, Cardiff, GB;

Owen Shadick, Cardiff, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/50 (2006.01); B01J 2/08 (2006.01); A61K 9/16 (2006.01);
U.S. Cl.
CPC ...
B01J 2/08 (2013.01); A61K 9/1647 (2013.01); A61K 9/1694 (2013.01);
Abstract

A method of making solid beads is disclosed, said method comprising: (i) providing a microfluidic device comprising a carrier fluid conduit and a functional fluid conduit which meet at a junction region; (ii) providing a laminar flow of a functional fluid comprising a solvent and a solute along the functional fluid conduit and providing a laminar flow of a carrier fluid along the carrier fluid conduit so as to form droplets of functional fluid in a flow of carrier fluid; (iii) cooling the segments of functional fluid in a conduit of the microfluidic device to form cooled (preferably frozen) droplets; and (iv) providing a liquid into intimate admixture with the cooled droplets so as to cause said solvent to exit said cooled droplets, thus forming solid beads. A microfluidic device for use in such a method is also disclosed.


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