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Poly((N-(Hydroxymethyl)methacrylamide)–1-allyl-2-thiourea) hydrogels, Poly(NHMMA–ATU), were synthesized by gamma radiation using 60 Co γ source at different irradiation doses and different ATU content in the irradiated monomer mixture. The swellability of the synthesized hydrogels was changed by irradiation doses and by the content of ATU in the irradiated mixture. These hydrogels were used...
Freshwater biofilms grown on polycarbonate substrata in Lake Velence (Hungary) and Lake Mogan (Turkey) were studied by applying total reflection X-ray fluorescence spectrometry and taxonomical techniques. Concentration of calcium, which stabilizes the structure of the exopolymer matrix, was identical in the biofilms, independently of the fact that its concentration in the lake waters differs by a...
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