The sensing layer reacts with a chemical or biological agent by absorption, adsorption, desorption or chemical reaction.

传感层通过吸 收、吸附、解吸或化学反应与化学剂或生物制剂起反应。

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The porous version exhibited high "selective absorption and adsorption" - preferentially picking up organic pollutants and dyes out of water.

BBC: 'White graphene' soaks up pollutants and can be re-used