Antifouling properties of zinc oxide nanorod coatings

Marwan Al-Fori, Sergey Dobretsov, Myo Tay Zar Myint, Joydeep Dutta

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

In laboratory experiments, the antifouling (AF) properties of zinc oxide (ZnO) nanorod coatings were investigated using the marine bacterium Acinetobacter sp. AZ4C, larvae of the bryozoan Bugula neritina and the microalga Tetraselmis sp. ZnO nanorod coatings were fabricated on microscope glass substrata by a simple hydrothermal technique using two different molar concentrations (5 and 10 mM) of zinc precursors. These coatings were tested for 5 h under artificial sunlight (1060 W m-2 or 530 W m-2) and in the dark (no irradiation). In the presence of light, both the ZnO nanorod coatings significantly reduced the density of Acinetobacter sp. AZ4C and Tetraselmis sp. in comparison to the control (microscope glass substratum without a ZnO coating). High mortality and low settlement of B. neritina larvae was observed on ZnO nanorod coatings subjected to light irradiation. In darkness, neither mortality nor enhanced settlement of larvae was observed. Larvae of B. neritina were not affected by Zn2+ ions. The AF effect of the ZnO nanorod coatings was thus attributed to the reactive oxygen species (ROS) produced by photocatalysis. It was concluded that ZnO nanorod coatings effectively prevented marine micro and macrofouling in static conditions.

Original languageEnglish
Pages (from-to)871-882
Number of pages12
JournalBiofouling
Volume30
Issue number7
DOIs
Publication statusPublished - 2014

Fingerprint

nanorods
Zinc Oxide
zinc oxide
Nanotubes
antifouling
coatings
coating
zinc
oxide
Larva
Acinetobacter
larva
Tetraselmis
larvae
Glass
microscopes
glass
irradiation
Light
Mortality

Keywords

  • antifouling
  • bacteria
  • bryozoa
  • nanotechnology
  • photocatalysis
  • zinc oxide

ASJC Scopus subject areas

  • Aquatic Science
  • Water Science and Technology
  • Applied Microbiology and Biotechnology
  • Medicine(all)

Cite this

Antifouling properties of zinc oxide nanorod coatings. / Al-Fori, Marwan; Dobretsov, Sergey; Myint, Myo Tay Zar; Dutta, Joydeep.

In: Biofouling, Vol. 30, No. 7, 2014, p. 871-882.

Research output: Contribution to journalArticle

Al-Fori, Marwan ; Dobretsov, Sergey ; Myint, Myo Tay Zar ; Dutta, Joydeep. / Antifouling properties of zinc oxide nanorod coatings. In: Biofouling. 2014 ; Vol. 30, No. 7. pp. 871-882.
@article{b2312492c56f40fca7527198410779d9,
title = "Antifouling properties of zinc oxide nanorod coatings",
abstract = "In laboratory experiments, the antifouling (AF) properties of zinc oxide (ZnO) nanorod coatings were investigated using the marine bacterium Acinetobacter sp. AZ4C, larvae of the bryozoan Bugula neritina and the microalga Tetraselmis sp. ZnO nanorod coatings were fabricated on microscope glass substrata by a simple hydrothermal technique using two different molar concentrations (5 and 10 mM) of zinc precursors. These coatings were tested for 5 h under artificial sunlight (1060 W m-2 or 530 W m-2) and in the dark (no irradiation). In the presence of light, both the ZnO nanorod coatings significantly reduced the density of Acinetobacter sp. AZ4C and Tetraselmis sp. in comparison to the control (microscope glass substratum without a ZnO coating). High mortality and low settlement of B. neritina larvae was observed on ZnO nanorod coatings subjected to light irradiation. In darkness, neither mortality nor enhanced settlement of larvae was observed. Larvae of B. neritina were not affected by Zn2+ ions. The AF effect of the ZnO nanorod coatings was thus attributed to the reactive oxygen species (ROS) produced by photocatalysis. It was concluded that ZnO nanorod coatings effectively prevented marine micro and macrofouling in static conditions.",
keywords = "antifouling, bacteria, bryozoa, nanotechnology, photocatalysis, zinc oxide",
author = "Marwan Al-Fori and Sergey Dobretsov and Myint, {Myo Tay Zar} and Joydeep Dutta",
year = "2014",
doi = "10.1080/08927014.2014.942297",
language = "English",
volume = "30",
pages = "871--882",
journal = "Biofouling",
issn = "0892-7014",
publisher = "Taylor and Francis Ltd.",
number = "7",

}

TY - JOUR

T1 - Antifouling properties of zinc oxide nanorod coatings

AU - Al-Fori, Marwan

AU - Dobretsov, Sergey

AU - Myint, Myo Tay Zar

AU - Dutta, Joydeep

PY - 2014

Y1 - 2014

N2 - In laboratory experiments, the antifouling (AF) properties of zinc oxide (ZnO) nanorod coatings were investigated using the marine bacterium Acinetobacter sp. AZ4C, larvae of the bryozoan Bugula neritina and the microalga Tetraselmis sp. ZnO nanorod coatings were fabricated on microscope glass substrata by a simple hydrothermal technique using two different molar concentrations (5 and 10 mM) of zinc precursors. These coatings were tested for 5 h under artificial sunlight (1060 W m-2 or 530 W m-2) and in the dark (no irradiation). In the presence of light, both the ZnO nanorod coatings significantly reduced the density of Acinetobacter sp. AZ4C and Tetraselmis sp. in comparison to the control (microscope glass substratum without a ZnO coating). High mortality and low settlement of B. neritina larvae was observed on ZnO nanorod coatings subjected to light irradiation. In darkness, neither mortality nor enhanced settlement of larvae was observed. Larvae of B. neritina were not affected by Zn2+ ions. The AF effect of the ZnO nanorod coatings was thus attributed to the reactive oxygen species (ROS) produced by photocatalysis. It was concluded that ZnO nanorod coatings effectively prevented marine micro and macrofouling in static conditions.

AB - In laboratory experiments, the antifouling (AF) properties of zinc oxide (ZnO) nanorod coatings were investigated using the marine bacterium Acinetobacter sp. AZ4C, larvae of the bryozoan Bugula neritina and the microalga Tetraselmis sp. ZnO nanorod coatings were fabricated on microscope glass substrata by a simple hydrothermal technique using two different molar concentrations (5 and 10 mM) of zinc precursors. These coatings were tested for 5 h under artificial sunlight (1060 W m-2 or 530 W m-2) and in the dark (no irradiation). In the presence of light, both the ZnO nanorod coatings significantly reduced the density of Acinetobacter sp. AZ4C and Tetraselmis sp. in comparison to the control (microscope glass substratum without a ZnO coating). High mortality and low settlement of B. neritina larvae was observed on ZnO nanorod coatings subjected to light irradiation. In darkness, neither mortality nor enhanced settlement of larvae was observed. Larvae of B. neritina were not affected by Zn2+ ions. The AF effect of the ZnO nanorod coatings was thus attributed to the reactive oxygen species (ROS) produced by photocatalysis. It was concluded that ZnO nanorod coatings effectively prevented marine micro and macrofouling in static conditions.

KW - antifouling

KW - bacteria

KW - bryozoa

KW - nanotechnology

KW - photocatalysis

KW - zinc oxide

UR - http://www.scopus.com/inward/record.url?scp=84906050276&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84906050276&partnerID=8YFLogxK

U2 - 10.1080/08927014.2014.942297

DO - 10.1080/08927014.2014.942297

M3 - Article

VL - 30

SP - 871

EP - 882

JO - Biofouling

JF - Biofouling

SN - 0892-7014

IS - 7

ER -