Immobilization of silver nanoparticle-decorated silica particles on polyamide thin film composite membranes for antibacterial properties

Sang Hee Park, Young Seon Ko, Sung Joon Park, Jong Suk Lee, Jinhan Cho, Kyung Youl Baek, Il Tae Kim, Kyoungja Woo, Jung-hyun Lee

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

We present a new strategy to strongly and effectively immobilize silver nanoparticles (AgNPs) on polyamide thin film composite membranes to endow antibacterial activity. This method relies on the immobilization of relatively large silica particles (SiO2, ~400nm in diameter), where AgNPs of ~30nm in diameter are tightly and densely bound (AgNP@SiO2), on the membrane surface using cysteamine as a covalent linker. The formation of multiple Ag-S chemical bonds between a "bumpy AgNP@SiO2 and the rough membrane surface provides a great leaching stability of AgNPs and AgNP@SiO2. AgNP@SiO2 particles were well distributed over the entire membrane surface without severe aggregation. The surface coverage of the membrane by AgNP@SiO2 was tuned by adjusting the deposition time and AgNP@SiO2 particle concentration. The AgNP@SiO2-immobilized membrane showed excellent antibacterial properties against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus, even with a relatively low particle coverage. Importantly, the separation performance (water flux and salt rejection) of the membrane was not impaired by particle immobilization. These beneficial effects are attributed mainly to the sparse and good distribution of AgNP@SiO2, which can reinforce the antibacterial activity of AgNPs while having a negligible impact on the hydraulic resistance.

Original languageEnglish
Pages (from-to)80-91
Number of pages12
JournalJournal of Membrane Science
Volume499
DOIs
Publication statusPublished - 2016 Feb 1

Fingerprint

Composite membranes
Nylons
immobilization
Polyamides
Silver
Silicon Dioxide
Immobilization
Nanoparticles
silver
Silica
silicon dioxide
membranes
Membranes
Thin films
nanoparticles
composite materials
thin films
Distribution of goods
Cysteamine
cysteamine

Keywords

  • Antibacterial property
  • Particle immobilization
  • Polyamide thin film composite membrane
  • Reverse osmosis
  • Silver nanoparticle

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Science(all)
  • Biochemistry
  • Filtration and Separation

Cite this

Immobilization of silver nanoparticle-decorated silica particles on polyamide thin film composite membranes for antibacterial properties. / Park, Sang Hee; Ko, Young Seon; Park, Sung Joon; Lee, Jong Suk; Cho, Jinhan; Baek, Kyung Youl; Kim, Il Tae; Woo, Kyoungja; Lee, Jung-hyun.

In: Journal of Membrane Science, Vol. 499, 01.02.2016, p. 80-91.

Research output: Contribution to journalArticle

Park, Sang Hee ; Ko, Young Seon ; Park, Sung Joon ; Lee, Jong Suk ; Cho, Jinhan ; Baek, Kyung Youl ; Kim, Il Tae ; Woo, Kyoungja ; Lee, Jung-hyun. / Immobilization of silver nanoparticle-decorated silica particles on polyamide thin film composite membranes for antibacterial properties. In: Journal of Membrane Science. 2016 ; Vol. 499. pp. 80-91.
@article{8ec5b561413849ee8194a1c9c7a54617,
title = "Immobilization of silver nanoparticle-decorated silica particles on polyamide thin film composite membranes for antibacterial properties",
abstract = "We present a new strategy to strongly and effectively immobilize silver nanoparticles (AgNPs) on polyamide thin film composite membranes to endow antibacterial activity. This method relies on the immobilization of relatively large silica particles (SiO2, ~400nm in diameter), where AgNPs of ~30nm in diameter are tightly and densely bound (AgNP@SiO2), on the membrane surface using cysteamine as a covalent linker. The formation of multiple Ag-S chemical bonds between a {"}bumpy AgNP@SiO2 and the rough membrane surface provides a great leaching stability of AgNPs and AgNP@SiO2. AgNP@SiO2 particles were well distributed over the entire membrane surface without severe aggregation. The surface coverage of the membrane by AgNP@SiO2 was tuned by adjusting the deposition time and AgNP@SiO2 particle concentration. The AgNP@SiO2-immobilized membrane showed excellent antibacterial properties against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus, even with a relatively low particle coverage. Importantly, the separation performance (water flux and salt rejection) of the membrane was not impaired by particle immobilization. These beneficial effects are attributed mainly to the sparse and good distribution of AgNP@SiO2, which can reinforce the antibacterial activity of AgNPs while having a negligible impact on the hydraulic resistance.",
keywords = "Antibacterial property, Particle immobilization, Polyamide thin film composite membrane, Reverse osmosis, Silver nanoparticle",
author = "Park, {Sang Hee} and Ko, {Young Seon} and Park, {Sung Joon} and Lee, {Jong Suk} and Jinhan Cho and Baek, {Kyung Youl} and Kim, {Il Tae} and Kyoungja Woo and Jung-hyun Lee",
year = "2016",
month = "2",
day = "1",
doi = "10.1016/j.memsci.2015.09.060",
language = "English",
volume = "499",
pages = "80--91",
journal = "Jornal of Membrane Science",
issn = "0376-7388",
publisher = "Elsevier",

}

TY - JOUR

T1 - Immobilization of silver nanoparticle-decorated silica particles on polyamide thin film composite membranes for antibacterial properties

AU - Park, Sang Hee

AU - Ko, Young Seon

AU - Park, Sung Joon

AU - Lee, Jong Suk

AU - Cho, Jinhan

AU - Baek, Kyung Youl

AU - Kim, Il Tae

AU - Woo, Kyoungja

AU - Lee, Jung-hyun

PY - 2016/2/1

Y1 - 2016/2/1

N2 - We present a new strategy to strongly and effectively immobilize silver nanoparticles (AgNPs) on polyamide thin film composite membranes to endow antibacterial activity. This method relies on the immobilization of relatively large silica particles (SiO2, ~400nm in diameter), where AgNPs of ~30nm in diameter are tightly and densely bound (AgNP@SiO2), on the membrane surface using cysteamine as a covalent linker. The formation of multiple Ag-S chemical bonds between a "bumpy AgNP@SiO2 and the rough membrane surface provides a great leaching stability of AgNPs and AgNP@SiO2. AgNP@SiO2 particles were well distributed over the entire membrane surface without severe aggregation. The surface coverage of the membrane by AgNP@SiO2 was tuned by adjusting the deposition time and AgNP@SiO2 particle concentration. The AgNP@SiO2-immobilized membrane showed excellent antibacterial properties against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus, even with a relatively low particle coverage. Importantly, the separation performance (water flux and salt rejection) of the membrane was not impaired by particle immobilization. These beneficial effects are attributed mainly to the sparse and good distribution of AgNP@SiO2, which can reinforce the antibacterial activity of AgNPs while having a negligible impact on the hydraulic resistance.

AB - We present a new strategy to strongly and effectively immobilize silver nanoparticles (AgNPs) on polyamide thin film composite membranes to endow antibacterial activity. This method relies on the immobilization of relatively large silica particles (SiO2, ~400nm in diameter), where AgNPs of ~30nm in diameter are tightly and densely bound (AgNP@SiO2), on the membrane surface using cysteamine as a covalent linker. The formation of multiple Ag-S chemical bonds between a "bumpy AgNP@SiO2 and the rough membrane surface provides a great leaching stability of AgNPs and AgNP@SiO2. AgNP@SiO2 particles were well distributed over the entire membrane surface without severe aggregation. The surface coverage of the membrane by AgNP@SiO2 was tuned by adjusting the deposition time and AgNP@SiO2 particle concentration. The AgNP@SiO2-immobilized membrane showed excellent antibacterial properties against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus, even with a relatively low particle coverage. Importantly, the separation performance (water flux and salt rejection) of the membrane was not impaired by particle immobilization. These beneficial effects are attributed mainly to the sparse and good distribution of AgNP@SiO2, which can reinforce the antibacterial activity of AgNPs while having a negligible impact on the hydraulic resistance.

KW - Antibacterial property

KW - Particle immobilization

KW - Polyamide thin film composite membrane

KW - Reverse osmosis

KW - Silver nanoparticle

UR - http://www.scopus.com/inward/record.url?scp=84946426770&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84946426770&partnerID=8YFLogxK

U2 - 10.1016/j.memsci.2015.09.060

DO - 10.1016/j.memsci.2015.09.060

M3 - Article

VL - 499

SP - 80

EP - 91

JO - Jornal of Membrane Science

JF - Jornal of Membrane Science

SN - 0376-7388

ER -