Small molecules · Cell signals · Light-controlled materials
Gas biology
Some gases are messages between cells. We study ways to control where and when these short-lived signals reach living cells.
Why it matters
Nitric oxide, or NO, is a small signaling molecule involved in processes such as blood-vessel relaxation. Its effects depend on the amount, timing, and location of exposure. That makes it an interesting biological signal—and a difficult one to control in an experiment. Our work brings together chemistry and cell biology to investigate localized delivery rather than simply exposing every cell to the same signal.
How we study it
- Make a controllable sourceDesign light-responsive porous materials that can release a molecule when illuminated.
- Choose where to stimulateUse localized light activation to deliver NO near selected cells, rather than uniformly across a culture.
- Observe the responseMeasure changes inside the stimulated cells, such as calcium signals, to test whether the released NO has a biological effect.
Published examples
Localized cell stimulation by nitric oxide using a photoactive porous coordination polymer platform
A light-activated material enabled localized NO release and a measurable calcium response in cells. This is a foundational demonstration of experimental control, not a clinical gas therapy.
Integration of Porous Coordination Polymers and Gold Nanorods into Core–Shell Mesoscopic Composites toward Light-Induced Molecular Release
Gold nanorods and porous materials were combined to trigger molecular release using light. A fluorescent guest molecule demonstrated release control; the study should not be read as a treatment result.