Sharkskin-mimetic desalination membranes with ultralow biofouling

Wansuk Choi, Changhoon Lee, Dahye Lee, Young June Won, Gi Wook Lee, Min Gyu Shin, Byoungjin Chun, Taek Seung Kim, Hee-Deung Park, Hyun Wook Jung, Jong Suk Lee, Jung-hyun Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Biofouling is a pervasive problem for any materials that are exposed to aquatic environments. Especially, it is a dire problem for the desalination membranes used to sustainably supply clean water, necessitating development of the methods to mitigate membrane biofouling. We present a topological modification approach to achieve ultralow fouling of water desalination membranes by realizing the sharkskin-mimetic (Sharklet) surface patterns and identify their unique antifouling mechanism based on computational fluid dynamics simulation. Our approach relies on a newly developed layered interfacial polymerization that can produce a conformal selective layer on patterned porous supports prepared by phase separation micromolding. The Sharklet-patterned membrane exhibited remarkably low biofouling compared to the conventional membranes with irregular roughness and topologically modulated membranes with simple patterns. Its superior biofouling resistance is attributed to the unique Sharklet geometry that can significantly inhibit biofilm growth. Furthermore, under dynamic flow conditions, the intricate Sharklet geometry induces a complex surface flow by symmetrically generating a secondary flow perpendicular to the primary flow, forming a periodic inflow and outflow along the pattern. The reinforced primary and secondary flows of the Sharklet pattern may further contribute to its excellent biofouling resistance.

Original languageEnglish
Pages (from-to)23034-23045
Number of pages12
JournalJournal of Materials Chemistry A
Volume6
Issue number45
DOIs
Publication statusPublished - 2018 Jan 1

Fingerprint

Biofouling
Desalination
Membranes
Secondary flow
Geometry
Water
Biofilms
Fouling
Phase separation
Computational fluid dynamics
Surface roughness
Polymerization
Computer simulation

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Choi, W., Lee, C., Lee, D., Won, Y. J., Lee, G. W., Shin, M. G., ... Lee, J. (2018). Sharkskin-mimetic desalination membranes with ultralow biofouling. Journal of Materials Chemistry A, 6(45), 23034-23045. https://doi.org/10.1039/c8ta06125d

Sharkskin-mimetic desalination membranes with ultralow biofouling. / Choi, Wansuk; Lee, Changhoon; Lee, Dahye; Won, Young June; Lee, Gi Wook; Shin, Min Gyu; Chun, Byoungjin; Kim, Taek Seung; Park, Hee-Deung; Jung, Hyun Wook; Lee, Jong Suk; Lee, Jung-hyun.

In: Journal of Materials Chemistry A, Vol. 6, No. 45, 01.01.2018, p. 23034-23045.

Research output: Contribution to journalArticle

Choi, W, Lee, C, Lee, D, Won, YJ, Lee, GW, Shin, MG, Chun, B, Kim, TS, Park, H-D, Jung, HW, Lee, JS & Lee, J 2018, 'Sharkskin-mimetic desalination membranes with ultralow biofouling', Journal of Materials Chemistry A, vol. 6, no. 45, pp. 23034-23045. https://doi.org/10.1039/c8ta06125d
Choi, Wansuk ; Lee, Changhoon ; Lee, Dahye ; Won, Young June ; Lee, Gi Wook ; Shin, Min Gyu ; Chun, Byoungjin ; Kim, Taek Seung ; Park, Hee-Deung ; Jung, Hyun Wook ; Lee, Jong Suk ; Lee, Jung-hyun. / Sharkskin-mimetic desalination membranes with ultralow biofouling. In: Journal of Materials Chemistry A. 2018 ; Vol. 6, No. 45. pp. 23034-23045.
@article{230072d4b1ba4e9693434b5a6e62f9e8,
title = "Sharkskin-mimetic desalination membranes with ultralow biofouling",
abstract = "Biofouling is a pervasive problem for any materials that are exposed to aquatic environments. Especially, it is a dire problem for the desalination membranes used to sustainably supply clean water, necessitating development of the methods to mitigate membrane biofouling. We present a topological modification approach to achieve ultralow fouling of water desalination membranes by realizing the sharkskin-mimetic (Sharklet) surface patterns and identify their unique antifouling mechanism based on computational fluid dynamics simulation. Our approach relies on a newly developed layered interfacial polymerization that can produce a conformal selective layer on patterned porous supports prepared by phase separation micromolding. The Sharklet-patterned membrane exhibited remarkably low biofouling compared to the conventional membranes with irregular roughness and topologically modulated membranes with simple patterns. Its superior biofouling resistance is attributed to the unique Sharklet geometry that can significantly inhibit biofilm growth. Furthermore, under dynamic flow conditions, the intricate Sharklet geometry induces a complex surface flow by symmetrically generating a secondary flow perpendicular to the primary flow, forming a periodic inflow and outflow along the pattern. The reinforced primary and secondary flows of the Sharklet pattern may further contribute to its excellent biofouling resistance.",
author = "Wansuk Choi and Changhoon Lee and Dahye Lee and Won, {Young June} and Lee, {Gi Wook} and Shin, {Min Gyu} and Byoungjin Chun and Kim, {Taek Seung} and Hee-Deung Park and Jung, {Hyun Wook} and Lee, {Jong Suk} and Jung-hyun Lee",
year = "2018",
month = "1",
day = "1",
doi = "10.1039/c8ta06125d",
language = "English",
volume = "6",
pages = "23034--23045",
journal = "Journal of Materials Chemistry A",
issn = "2050-7488",
publisher = "Royal Society of Chemistry",
number = "45",

}

TY - JOUR

T1 - Sharkskin-mimetic desalination membranes with ultralow biofouling

AU - Choi, Wansuk

AU - Lee, Changhoon

AU - Lee, Dahye

AU - Won, Young June

AU - Lee, Gi Wook

AU - Shin, Min Gyu

AU - Chun, Byoungjin

AU - Kim, Taek Seung

AU - Park, Hee-Deung

AU - Jung, Hyun Wook

AU - Lee, Jong Suk

AU - Lee, Jung-hyun

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Biofouling is a pervasive problem for any materials that are exposed to aquatic environments. Especially, it is a dire problem for the desalination membranes used to sustainably supply clean water, necessitating development of the methods to mitigate membrane biofouling. We present a topological modification approach to achieve ultralow fouling of water desalination membranes by realizing the sharkskin-mimetic (Sharklet) surface patterns and identify their unique antifouling mechanism based on computational fluid dynamics simulation. Our approach relies on a newly developed layered interfacial polymerization that can produce a conformal selective layer on patterned porous supports prepared by phase separation micromolding. The Sharklet-patterned membrane exhibited remarkably low biofouling compared to the conventional membranes with irregular roughness and topologically modulated membranes with simple patterns. Its superior biofouling resistance is attributed to the unique Sharklet geometry that can significantly inhibit biofilm growth. Furthermore, under dynamic flow conditions, the intricate Sharklet geometry induces a complex surface flow by symmetrically generating a secondary flow perpendicular to the primary flow, forming a periodic inflow and outflow along the pattern. The reinforced primary and secondary flows of the Sharklet pattern may further contribute to its excellent biofouling resistance.

AB - Biofouling is a pervasive problem for any materials that are exposed to aquatic environments. Especially, it is a dire problem for the desalination membranes used to sustainably supply clean water, necessitating development of the methods to mitigate membrane biofouling. We present a topological modification approach to achieve ultralow fouling of water desalination membranes by realizing the sharkskin-mimetic (Sharklet) surface patterns and identify their unique antifouling mechanism based on computational fluid dynamics simulation. Our approach relies on a newly developed layered interfacial polymerization that can produce a conformal selective layer on patterned porous supports prepared by phase separation micromolding. The Sharklet-patterned membrane exhibited remarkably low biofouling compared to the conventional membranes with irregular roughness and topologically modulated membranes with simple patterns. Its superior biofouling resistance is attributed to the unique Sharklet geometry that can significantly inhibit biofilm growth. Furthermore, under dynamic flow conditions, the intricate Sharklet geometry induces a complex surface flow by symmetrically generating a secondary flow perpendicular to the primary flow, forming a periodic inflow and outflow along the pattern. The reinforced primary and secondary flows of the Sharklet pattern may further contribute to its excellent biofouling resistance.

UR - http://www.scopus.com/inward/record.url?scp=85057032717&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85057032717&partnerID=8YFLogxK

U2 - 10.1039/c8ta06125d

DO - 10.1039/c8ta06125d

M3 - Article

VL - 6

SP - 23034

EP - 23045

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

SN - 2050-7488

IS - 45

ER -