Patent ID: 11912974
Assignee: nan
Field: Biotechnology (Chemistry)
Classification: CPC C | IPC C

Claim 12:
13. A method for spatiotemporal control of chemical, biological, and/or biochemical reactions, processes, and/or concentrations of chemical, biological, and/or biochemical species in a photoreactive volume, the method comprises:
providing an assembly comprises:
a container for holding a material comprising photo-responsive substance;
a motorized rotation stage configured to rotate the container about a z-axis at a predetermined rate;
one or more projectors configured to project patterned radiation in predefined wavelengths along a y-axis into the container while the container is rotating, wherein the y-axis is perpendicular to the z-axis, wherein the radiations from multiple angles intersect to form localized photoactivated regions within a volume of the material;

subjecting the container containing the material to the patterned radiation resulting in a photo-activated reaction within the material,
wherein the patterned radiation is in a form of 2D projections, each 2D projection has light zones of different intensity, wherein the patterned radiation results in different regions within the volume to reach different exposure doses through a fixed exposure interval.