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A Review of Methods to Modify the PDMS Surface Wettability and Their Applications

2024Artigo científico Acesso aberto
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dc.contributor.authorNeves, Lucas B.
dc.contributor.authorAfonso, Inês Santos
dc.contributor.authorNobrega, Glauco
dc.contributor.authorBarbosa, Luiz G.
dc.contributor.authorLima, Rui A.
dc.contributor.authorRibeiro, J.E.
dc.date.accessioned2024-07-22T13:01:40Z
dc.date.available2024-07-22T13:01:40Z
dc.date.issued2024
dc.description.abstractPolydimethylsiloxane (PDMS) has attracted great attention in various fields due to its excellent properties, but its inherent hydrophobicity presents challenges in many applications that require controlled wettability. The purpose of this review is to provide a comprehensive overview of some key strategies for modifying the wettability of PDMS surfaces by providing the main traditional methods for this modification and the results of altering the contact angle and other characteristics associated with this property. Four main technologies are discussed, namely, oxygen plasma treatment, surfactant addition, UV-ozone treatment, and the incorporation of nanomaterials, as these traditional methods are commonly selected due to the greater availability of information, their lower complexity compared to the new techniques, and the lower cost associated with them. Oxygen plasma treatment is a widely used method for improving the hydrophilicity of PDMS surfaces by introducing polar functional groups through oxidation reactions. The addition of surfactants provides a versatile method for altering the wettability of PDMS, where the selection and concentration of the surfactant play an important role in achieving the desired surface properties. UV-ozone treatment is an effective method for increasing the surface energy of PDMS, inducing oxidation, and generating hydrophilic functional groups. Furthermore, the incorporation of nanomaterials into PDMS matrices represents a promising route for modifying wettability, providing adjustable surface properties through controlled dispersion and interfacial interactions. The synergistic effect of nanomaterials, such as nanoparticles and nanotubes, helps to improve wetting behaviour and surface energy. The present review discusses recent advances of each technique and highlights their underlying mechanisms, advantages, and limitations. Additionally, promising trends and future prospects for surface modification of PDMS are discussed, and the importance of tailoring wettability for applications ranging from microfluidics to biomedical devices is highlighted. Traditional methods are often chosen to modify the wettability of the PDMS surface because they have more information available in the literature, are less complex than new techniques, and are also less expensive.pt_PT
dc.description.sponsorshipFinancial support was provided by Portugal's national funding FCT/MCTES (PIDDAC) to Centro de Investigacao de Montanha (CIMO) (UIDB/00690/2020 and UIDP/00690/2020) and SusTEC (LA/P/0007/2020). The authors additionally acknowledge the projects 2022.02085.PTDC (https://doi.org/10.54499/2022.02085.PTDC), 2022.06207.PTDC(https://doi.org/10.54499/2022.06207.PTDC), and PTDC/EEI-EEE/2846/2021 (https://doi.org/10.54499/PTDC/EEI-EEE/2846/2021) for financial support through national funds (OE), within the scope of the Scientific Research and Technological Development Projects (IC&DT) program in all scientific domains (PTDC); the PORTUGAL 2020 Partnership Agreement, European Regional Development Fund (FEDER), via the Foundation for Science and Technology; and I.P. (FCT, I.P) and the R&D Units projects, UIDB/04077/2020, UIDB/00532/2020, and LA/P/0045/2020 (ALiCE). Glauco Nobrega was supported by the doctoral grant PRT/BD/153088/2021 financed by the Portuguese Foundation for Science and Technology (FCT) under the MIT Portugal Program.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationNeves, Lucas B.; Afonso, Inês S.; Nobrega, Glauco; Barbosa, Luiz G.; Lima, Rui A.; Ribeiro, J.E. (2024). A Review of Methods to Modify the PDMS Surface Wettability and Their Applications. Micromachines. eISSN 2072-666X. 15:6, p. 1-27pt_PT
dc.identifier.doi10.3390/mi15060670pt_PT
dc.identifier.eissn2072-666X
dc.identifier.urihttp://hdl.handle.net/10198/30057
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationMountain Research Center - UIDB/00690/2020
dc.relationMountain Research Center - UIDP/00690/2020
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions - LA/P/0007/2020
dc.relationPortable Microfluidic system for fast molecular diagnostics of Stroke
dc.relationMultiplexed micro(bio)sensors array integrated into an organ-on-a-chip device for assessing cancer NANOtherapy
dc.relationMechanical Engineering and Resource Sustainability Center
dc.relationTransport Phenomena Research Center
dc.relationALICE - Associate Laboratory in Chemical Engineering
dc.relationSeaweed nanofluids for cooling photovoltaic solar panels used in space missions (PRT/BD/153088/2021)
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPolydimethylsiloxane (PDMS)pt_PT
dc.subjectWettability modificationpt_PT
dc.subjectSurface treatmentpt_PT
dc.subjectNanomaterial incorporationpt_PT
dc.subjectPDMS applicationspt_PT
dc.titleA Review of Methods to Modify the PDMS Surface Wettability and Their Applicationspt_PT
dc.typejournal article
dspace.entity.typePublication
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oaire.awardTitleMountain Research Center - UIDB/00690/2020
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oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions - LA/P/0007/2020
oaire.awardTitlePortable Microfluidic system for fast molecular diagnostics of Stroke
oaire.awardTitleMultiplexed micro(bio)sensors array integrated into an organ-on-a-chip device for assessing cancer NANOtherapy
oaire.awardTitleMechanical Engineering and Resource Sustainability Center
oaire.awardTitleTransport Phenomena Research Center
oaire.awardTitleALICE - Associate Laboratory in Chemical Engineering
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oaire.citation.endPage27pt_PT
oaire.citation.issue6pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleMicromachinespt_PT
oaire.citation.volume15pt_PT
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