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Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
Rhizopus stolonifer responses (recovery: closed circles, no recovery: open circles) on needle-punched (a) and melt-blown (b) filters coated with 0.12 M ZnO. C refers to control samples and C- to control samples soaked in propan-2-ol solution.