Ultrafiltration membrane's efficiency and antifouling properties can be enhanced by blending with benign tailor made inorganic nano-materials. Carbon adhered Fe3O4 hollow nanotube, nanosheet synthesized from iron alkoxide using iron (III) acetate source refluxed with methanol. The prepared Fe3O4 (nanotubes &amp; nanosheets) were characterised by PXRD, FE-SEM, TEM, FT-IR and elemental analysis. Polymer nanocomposite membranes were prepared by blending PVDF (14 wt%)/Fe3O4 (2 wt%)/DMF and characterised in detail. PVDF/Fe3O4 (hollow nanotube) composite membrane showed enhanced flux property and antifouling efficiency confirmed by BSA rejection and molecular weight cut-off (MWCO). The biofilm formation studies of PVDF/Fe3O4 hollow nanotube composite membrane were evaluated using E. coli, fresh water Bacillus subtilis and marine Bacillus bacteria showed excellent control of biofilm growth by PVDF/Fe3O4 (hollow nanotube) membrane. The antifouling studies of PVDF blank and PVDF/Fe3O4 (holow nanotube) with B. subtilis and P. aeruginosa showed 0.943 ± 0.02, 0.932 ± 0.01 A.U for PVDF blank and 0.88 ± 0.02 and 0.802 ± 0.02 A.U, and this indicates the significant antifouling control arise from the Fe nanomaterial. © 2018 Elsevier B.V.

Muthukumar M

Department of Structural and Geotechical Engineering

School of Civil Engineering

Vellore Campus

Amitava Mukherjee

Centre for Nanobiotechnology

Shanthana lakshmi D

Saxena M

Jaiswar S

Natarajan S

Bajaj H.C.

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Materials Chemistry and Physics

Continuous increase in the usage of ZnO nanoparticles in commercial products has exacerbated the risk of release of these particles into the aquatic environment with possible harmful effects on the biota. In the current study, cytotoxic effects of two types of ZnO nanoparticles, having different initial effective diameters in filtered and sterilized lake water medium [487.5±2.55nm for ZnO-1 NPs and 616.2±38.5nm for ZnO-2 NPs] were evaluated towards a dominant freshwater algal isolate Scenedesmus obliquus in UV-C, visible and dark conditions at three exposure concentrations: 0.25, 0.5 and 1mg/L. The toxic effects were found to be strongly dependent on the initial hydrodynamic particle size in the medium, the exposure concentrations and the irradiation conditions. The loss in viability, LDH release and ROS generation were significantly enhanced in the case of the smaller sized ZnO-1 NPs than in the case of ZnO-2 NPs under comparable test conditions. The toxicity of both types of ZnO NPs was considerably elevated under UV-C irradiation in comparison to that in dark and visible light conditions, the effects being more enhanced in case of ZnO-1 NPs. The size dependent dissolution of the ZnO NPs in the test medium and possible toxicity due to the released Zn2+ ions was also noted. The surface adsorption of the nanoparticles was substantiated by scanning electron microscopy. The internalization/uptake of the NPs by the algal cells was confirmed by fluorescence microscopy, transmission electron microscopy, and elemental analyses. © 2015 Elsevier B.V.

Aquatic Toxicology

Cytotoxicity of ZnO NPs towards fresh water algae Scenedesmus obliquus at low exposure concentrations in UV-C, visible and dark conditions

3 Biotech

Preparation and performance of biofouling resistant PAN/chitosan hollow fiber membranes

International Journal of Nanomedicine

Fabrication of nonfouling, bactericidal, and bacteria corpse release multifunctional surface through surface-initiated RAFT polymerization

RSC Advances

Synthesis and characterization of magnetic copper–iron-titanate and uptake studies of americium from nuclear waste solutions

New Journal of Chemistry

Investigation of one-dimensional multi-functional zwitterionic Ag nanowires as a novel modifier for PVDF ultrafiltration membranes

Carbon adhered iron oxide hollow nanotube on membrane fouling

Journal	Data powered by TypesetMaterials Chemistry and Physics
Publisher	Data powered by TypesetElsevier BV
ISSN	0254-0584
Open Access	0