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181 0 _ai
182 0 _ab
200 1 _aA reduction of settlement probability of Chlorella vulgaris on photo-chemically active ceramics with hierarchical nano-structures
_fMu Ling, S. Rutkowski, Si Tieyan [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 35 tit.]
330 _aBiofouling is defined by the adsorption of biomolecules or microorganisms on technical surfaces, which are causing adverse effects on the functionality (decrease of ship speed) and safety (infections of implants) of quite a number of industrial products. Conventional, anti-biofouling in marine environments is done by coating a technical surface with highly poisonous tin-organic, which have already been banned for environmental protection. Therefore, the developing of biologically benign coatings becomes a long-term pursue for the industry. Here, we study the Chlorella vulgaris settlement on self-disinfecting titanium dioxide surfaces with three different micro-structures: a flat surface, a light harvesting surface with nano-structure and a hierarchical surface structure, spanning over 5 orders of magnitude (from 0.1 nm to 10 ?m). These titanium dioxide surfaces were prepared by Ostwald ripening. This sample manufacturing process gains new catalytic properties as a self-cleaning effect, especially for the light harvesting surface with nano-structure (bulk metallic glass). Chlorella vulgaris dispersions were growing in glass flasks together with the different surface samples over the full time of the experiments. Therefore, this study was made as part of a laboratory scale test. It was found, that bulk metallic glass structures made by Ostwald ripening are showing the highest catalytic and at the same time the best self-cleaning effects. Additionally, the Chlorella vulgaris settlement probability was found to depend on the Wenzel roughness. The surfaces with a high Wenzel roughness were the ones with the lowest Chlorella vulgaris settlement. A semi-field test is proving the comparable antibiofouling performance of our surfaces with existing polymeric or sharkskin like structures on the timescale of one month.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tColloids and Surfaces A: Physicochemical and Engineering Aspects
463 _tVol. 610
_v[125898, 7 p.]
_d2021
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aantibiofouling
610 1 _awenzel roughness
610 1 _asettlement points
610 1 _achlorella vulgaris
610 1 _aself-cleaning
610 1 _aшероховатость
610 1 _aхлорелла
610 1 _aсамоочищение
701 0 _aMu Ling
701 1 _aRutkowski
_bS.
_cchemist
_cResearch Engineer, Tomsk Polytechnic University, Ph.D
_f1981-
_gSven
_2stltpush
_3(RuTPU)RU\TPU\pers\46773
701 0 _aSi Tieyan
701 0 _aGay Meyu
701 0 _aWang Jun
701 1 _aTverdokhlebov
_bS. I.
_cphysicist
_cAssociate Professor of Tomsk Polytechnic University, Candidate of physical and mathematical science
_f1961-
_gSergei Ivanovich
_2stltpush
_3(RuTPU)RU\TPU\pers\30855
701 1 _aFrue
_bYo. K.
_gYokhannes Kristof
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа ядерных технологий
_bНаучно-образовательный центр Б. П. Вейнберга
_h7866
_2stltpush
_3(RuTPU)RU\TPU\col\23561
801 2 _aRU
_b63413507
_c20220518
_gRCR
856 4 _uhttps://doi.org/10.1016/j.colsurfa.2020.125898
942 _cCF