Nitrogen Fixation and Biological Behavior of Nanodiamond Colloidal Solutions

Detonation‐produced nanodiamond, both as a powder (with adsorbed water) and especially when suspended in an aqueous colloid, can support the growth (both aerobic and anaerobic) of bacteria and fungi. These were isolated and identified by microbiological methods, optical and electron microscopy, as s...

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Published in:ChemPlusChem (Weinheim, Germany) Germany), 2020-08, Vol.85 (8), p.1905-1911
Main Authors: Kurakov, Alexander V., Batsanov, Andrei S., Gavrilkin, Sergei M., Batsanov, Stepan S.
Format: Article
Language:English
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bacteria
colloids
fungi
nanodiamonds
nitrogen fixation
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description Detonation‐produced nanodiamond, both as a powder (with adsorbed water) and especially when suspended in an aqueous colloid, can support the growth (both aerobic and anaerobic) of bacteria and fungi. These were isolated and identified by microbiological methods, optical and electron microscopy, as species of Penicillium, Purpureocillium, Beaveria, Trichoderma and Aspergillus genera. The C : N molar ratio of the developing fibers (comprising fungal mycelia with attached bacteria and entrapped nanodiamond) decreased from 25 to 11 between the 1st and 10th week of incubation (cf. 40 in initial nanodiamond, 4.6 typical for bacteria and 8.3 for fungi), and from 4 to
doi_str_mv 10.1002/cplu.202000437
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These were isolated and identified by microbiological methods, optical and electron microscopy, as species of Penicillium, Purpureocillium, Beaveria, Trichoderma and Aspergillus genera. The C : N molar ratio of the developing fibers (comprising fungal mycelia with attached bacteria and entrapped nanodiamond) decreased from 25 to 11 between the 1st and 10th week of incubation (cf. 40 in initial nanodiamond, 4.6 typical for bacteria and 8.3 for fungi), and from 4 to &lt;1 after the 12th week, as the lysis of microorganisms releases carbon as CO2 and nitrogen as NH4+ or NO3−. The nitrogen content of the colloid increased by an order of magnitude and more, due to fixation of N2 by nanodiamond under ambient conditions.The process requires water but not necessarily oxygen present. Nanodiamond in low‐concentration aqueous colloids facilitates oligotrophic growth of bacteria and microscopic fungi (which does not occur in pure water or other nano‐solid suspensions) through fixation of nitrogen, both from atmospheric air and pure N2. 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subjects bacteria
colloids
fungi
nanodiamonds
nitrogen fixation
title Nitrogen Fixation and Biological Behavior of Nanodiamond Colloidal Solutions
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