Tags

Type your tag names separated by a space and hit enter

Superhydrophobicity due to the hierarchical scale roughness of PDMS surfaces.
Langmuir. 2008 Mar 18; 24(6):2712-8.L

Abstract

Wettability control has been widely investigated in the last decades for technological applications such as microfluidic devices and self-cleaning surfaces by modifying both the chemical composition and the geometric structure of the surfaces. Inspired by the typical morphology of superhydrophobic leaves (such as lotus leaves), we have developed a dual-scale roughness, micro- and nanosized, on polydimethylsiloxane (PDMS) surfaces. By combining different geometric parameters and plasma treatment conditions, the structures were controlled hierarchically, at different independent length scales. Both the microsized replicated pillars and the nanosized etched posts tuned the wettability of the PDMS surfaces in a very simple way, up to contact angles of 170 degrees . Furthermore, changes in the influence of micro- and nanoscale geometrical structures were investigated. Hysteresis and contact angles of water droplets are evaluated as a combined effect of micropillars and a superimposed roughness, resulting in high advancing contact angles and low sliding angles.

Authors+Show Affiliations

NNL, National Nanotechnology Laboratories of CNR-INFM, Distretto Tecnologico, Università del Salento, Via Arnesano 16, 73100, Lecce, Italy. barbara.cortese@unile.itNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18217778

Citation

Cortese, Barbara, et al. "Superhydrophobicity Due to the Hierarchical Scale Roughness of PDMS Surfaces." Langmuir : the ACS Journal of Surfaces and Colloids, vol. 24, no. 6, 2008, pp. 2712-8.
Cortese B, D'Amone S, Manca M, et al. Superhydrophobicity due to the hierarchical scale roughness of PDMS surfaces. Langmuir. 2008;24(6):2712-8.
Cortese, B., D'Amone, S., Manca, M., Viola, I., Cingolani, R., & Gigli, G. (2008). Superhydrophobicity due to the hierarchical scale roughness of PDMS surfaces. Langmuir : the ACS Journal of Surfaces and Colloids, 24(6), 2712-8. https://doi.org/10.1021/la702764x
Cortese B, et al. Superhydrophobicity Due to the Hierarchical Scale Roughness of PDMS Surfaces. Langmuir. 2008 Mar 18;24(6):2712-8. PubMed PMID: 18217778.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Superhydrophobicity due to the hierarchical scale roughness of PDMS surfaces. AU - Cortese,Barbara, AU - D'Amone,Stefania, AU - Manca,Michele, AU - Viola,Ilenia, AU - Cingolani,Roberto, AU - Gigli,Giuseppe, Y1 - 2008/01/25/ PY - 2008/1/26/pubmed PY - 2008/5/15/medline PY - 2008/1/26/entrez SP - 2712 EP - 8 JF - Langmuir : the ACS journal of surfaces and colloids JO - Langmuir VL - 24 IS - 6 N2 - Wettability control has been widely investigated in the last decades for technological applications such as microfluidic devices and self-cleaning surfaces by modifying both the chemical composition and the geometric structure of the surfaces. Inspired by the typical morphology of superhydrophobic leaves (such as lotus leaves), we have developed a dual-scale roughness, micro- and nanosized, on polydimethylsiloxane (PDMS) surfaces. By combining different geometric parameters and plasma treatment conditions, the structures were controlled hierarchically, at different independent length scales. Both the microsized replicated pillars and the nanosized etched posts tuned the wettability of the PDMS surfaces in a very simple way, up to contact angles of 170 degrees . Furthermore, changes in the influence of micro- and nanoscale geometrical structures were investigated. Hysteresis and contact angles of water droplets are evaluated as a combined effect of micropillars and a superimposed roughness, resulting in high advancing contact angles and low sliding angles. SN - 0743-7463 UR - https://www.unboundmedicine.com/medline/citation/18217778/Superhydrophobicity_due_to_the_hierarchical_scale_roughness_of_PDMS_surfaces_ L2 - https://dx.doi.org/10.1021/la702764x DB - PRIME DP - Unbound Medicine ER -