Bioinspired smart peristome surface for temperature-controlled unidirectional water spreading

Pengfei Zhang, Huawei Chen, Li Li, Hongliang Liu, Guang Liu, Liwen Zhang, Deyuan Zhang, Lei Jiang

Research output: Contribution to journalArticleResearchpeer-review

24 Citations (Scopus)

Abstract

Unidirectional liquid spreading without energy input has attracted considerable attention due to various potential applications such as biofluidics devices and self-lubrication. Introducing a surface wettable gradient or asymmetric nanostructures onto the surface has successfully harnessed the liquid to spread unidirectionally. However, these surfaces are still plagued with problems that restrict their practical applications: fixed spreading state for a fixed surface, and spreading slowly over a short distance. Herein, bioinspired from the fast continuous unidirectional water transport on the peristome of Nepenthes alata, we report a smart peristome with temperature-controlled unidirectional water spreading. The smart artificial peristome was fabricated by grafting the thermoresponsive material PNIPAAm onto the artificial PDMS peristome. Unidirectional water spreading on the smart peristome can be dynamically regulated by changing the surface temperature. Besides, the water spreading is demonstrated with a remarkable reversibility and stability. By investigating the relationship between liquid spreading distance and wettability, the underlying mechanism was revealed. This work gives a new way to achieve the control of unidirectional liquid spreading available for controllable microfluidics and medical devices.

Original languageEnglish
Pages (from-to)5645-5652
Number of pages8
JournalACS Applied Materials and Interfaces
Volume9
Issue number6
DOIs
Publication statusPublished - 15 Feb 2017
Externally publishedYes

Keywords

  • artificial peristome
  • Nepenthes alata
  • smart surface
  • temperature-controlled water spreading
  • unidirectional liquid spreading

Cite this

Zhang, Pengfei ; Chen, Huawei ; Li, Li ; Liu, Hongliang ; Liu, Guang ; Zhang, Liwen ; Zhang, Deyuan ; Jiang, Lei. / Bioinspired smart peristome surface for temperature-controlled unidirectional water spreading. In: ACS Applied Materials and Interfaces. 2017 ; Vol. 9, No. 6. pp. 5645-5652.
@article{9e724e9799494921838690ab52a43a75,
title = "Bioinspired smart peristome surface for temperature-controlled unidirectional water spreading",
abstract = "Unidirectional liquid spreading without energy input has attracted considerable attention due to various potential applications such as biofluidics devices and self-lubrication. Introducing a surface wettable gradient or asymmetric nanostructures onto the surface has successfully harnessed the liquid to spread unidirectionally. However, these surfaces are still plagued with problems that restrict their practical applications: fixed spreading state for a fixed surface, and spreading slowly over a short distance. Herein, bioinspired from the fast continuous unidirectional water transport on the peristome of Nepenthes alata, we report a smart peristome with temperature-controlled unidirectional water spreading. The smart artificial peristome was fabricated by grafting the thermoresponsive material PNIPAAm onto the artificial PDMS peristome. Unidirectional water spreading on the smart peristome can be dynamically regulated by changing the surface temperature. Besides, the water spreading is demonstrated with a remarkable reversibility and stability. By investigating the relationship between liquid spreading distance and wettability, the underlying mechanism was revealed. This work gives a new way to achieve the control of unidirectional liquid spreading available for controllable microfluidics and medical devices.",
keywords = "artificial peristome, Nepenthes alata, smart surface, temperature-controlled water spreading, unidirectional liquid spreading",
author = "Pengfei Zhang and Huawei Chen and Li Li and Hongliang Liu and Guang Liu and Liwen Zhang and Deyuan Zhang and Lei Jiang",
year = "2017",
month = "2",
day = "15",
doi = "10.1021/acsami.6b15802",
language = "English",
volume = "9",
pages = "5645--5652",
journal = "ACS Applied Materials and Interfaces",
issn = "1944-8244",
publisher = "ACS Publications",
number = "6",

}

Bioinspired smart peristome surface for temperature-controlled unidirectional water spreading. / Zhang, Pengfei; Chen, Huawei; Li, Li; Liu, Hongliang; Liu, Guang; Zhang, Liwen; Zhang, Deyuan; Jiang, Lei.

In: ACS Applied Materials and Interfaces, Vol. 9, No. 6, 15.02.2017, p. 5645-5652.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Bioinspired smart peristome surface for temperature-controlled unidirectional water spreading

AU - Zhang, Pengfei

AU - Chen, Huawei

AU - Li, Li

AU - Liu, Hongliang

AU - Liu, Guang

AU - Zhang, Liwen

AU - Zhang, Deyuan

AU - Jiang, Lei

PY - 2017/2/15

Y1 - 2017/2/15

N2 - Unidirectional liquid spreading without energy input has attracted considerable attention due to various potential applications such as biofluidics devices and self-lubrication. Introducing a surface wettable gradient or asymmetric nanostructures onto the surface has successfully harnessed the liquid to spread unidirectionally. However, these surfaces are still plagued with problems that restrict their practical applications: fixed spreading state for a fixed surface, and spreading slowly over a short distance. Herein, bioinspired from the fast continuous unidirectional water transport on the peristome of Nepenthes alata, we report a smart peristome with temperature-controlled unidirectional water spreading. The smart artificial peristome was fabricated by grafting the thermoresponsive material PNIPAAm onto the artificial PDMS peristome. Unidirectional water spreading on the smart peristome can be dynamically regulated by changing the surface temperature. Besides, the water spreading is demonstrated with a remarkable reversibility and stability. By investigating the relationship between liquid spreading distance and wettability, the underlying mechanism was revealed. This work gives a new way to achieve the control of unidirectional liquid spreading available for controllable microfluidics and medical devices.

AB - Unidirectional liquid spreading without energy input has attracted considerable attention due to various potential applications such as biofluidics devices and self-lubrication. Introducing a surface wettable gradient or asymmetric nanostructures onto the surface has successfully harnessed the liquid to spread unidirectionally. However, these surfaces are still plagued with problems that restrict their practical applications: fixed spreading state for a fixed surface, and spreading slowly over a short distance. Herein, bioinspired from the fast continuous unidirectional water transport on the peristome of Nepenthes alata, we report a smart peristome with temperature-controlled unidirectional water spreading. The smart artificial peristome was fabricated by grafting the thermoresponsive material PNIPAAm onto the artificial PDMS peristome. Unidirectional water spreading on the smart peristome can be dynamically regulated by changing the surface temperature. Besides, the water spreading is demonstrated with a remarkable reversibility and stability. By investigating the relationship between liquid spreading distance and wettability, the underlying mechanism was revealed. This work gives a new way to achieve the control of unidirectional liquid spreading available for controllable microfluidics and medical devices.

KW - artificial peristome

KW - Nepenthes alata

KW - smart surface

KW - temperature-controlled water spreading

KW - unidirectional liquid spreading

UR - http://www.scopus.com/inward/record.url?scp=85013053192&partnerID=8YFLogxK

U2 - 10.1021/acsami.6b15802

DO - 10.1021/acsami.6b15802

M3 - Article

C2 - 28106363

AN - SCOPUS:85013053192

VL - 9

SP - 5645

EP - 5652

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

SN - 1944-8244

IS - 6

ER -