Methods for prevention of surface adsorption of biological materials to capillary walls in microchannels
US7252928B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2003 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Dec 31, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/92
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods for reducing surface adsorption of biological materials to the walls of microfluidic conduits in microscale devices are provided. In an example of the methods, one or more colloidal-size particles, such as colloidal silica particles, are flowed in a fluid within the microfluidic conduit in the presence of one or more adherent biological materials (such as one or more proteins, cells, carbohydrates, nucleic acids, lipids and the like) to adsorb to the materials and prevent them from binding to the capillary walls of the microfluidic conduit. Other adsorption inhibition agents such as detergents and nonaqueous solvents can be used alone or in combination with colloidal particles to reduce surface adsorption in microfluidic conduits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.