. . . . "The quantity of a chemical substance which has atleast one external dimension or internal structure or surface structure in the nanoscale size range, per unit volume or weight, contained within the components of a sample that are not measured by an experiment." . . . "Nanomaterial concentration in matrix" . . . . "Anastasios Papadiamantis" . "2025-07-24T09:17:18.675Z"^^ . . . . . . . . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDLrgIs0zCX11YIad1vf4iKrxmu/l3phA4ES5BixalXnpd5LD/znJ3GlB95mZ/KOrhGhBZyj39QaZVpQQuPTsqmigo4blW6FtTc0iWkFSNEj6dyWeavF9nJ0cSr7k6KEx3i8ue+O53k2lmF/UzG/w0cOSV71T3qVBFPupy5WMCTwwIDAQAB" . "RqRMxJ807pQh4xT8NRwrEsOAEtuHWYIDeOkOxGEN1PctUgvFF0h/eE2msSXZiWaDswMpZRqiysseMbhObX3Y2/jQ3WSB1/zcWKjxMxhFjXjU3VdGdvkEcGoxQffkiSKCA/GLzgpb2WPkaIgOG8CouJgslXcgOiiP9HvD6CSF1Gc=" . . .