Automatic molecular collection and detection by using fuel-powered microengines

Congratulation to Han Di. His paper was accepted for publication in Nanoscale.

We design and fabricate a simple self-powered system to collect analyte molecules in the fluids for surface-enhanced Raman scattering (SERS) detection. The system is based on catalytic Au/SiO/Ti/Ag-layered microengines by employing rolled-up nanotechnology. Pronounced SERS signals are observed on the microengines with more carried molecules compared with the same structure without automatic motions.

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