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DNA nanosensors: Lab in a particle

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Nanosensors allow us to probe otherwise inaccessible environments; however, existing technologies lack a data-storage mechanism and hence only permit on-line measurement. A smart nanomaterial that could both measure physicochemical properties and chemically store this information for readout at a later point in time would give us unprecedented access to complex systems (for example, biological processes within cells or underground water reservoirs).


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