Dry porous polydimethylsiloxane (PDMS): a novel method using camphor as scaffold
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Sulagna Chatterjee
and
Liana Chatterjee
Abstract
An optimal portable microfluidic device should ensure least number of accessories for versatile field application. Typically, in such a device fabricated with polydimethylsiloxane (PDMS), the transport of fluid is enabled through a nonconventional pumping mechanism. This pumping system has been demonstrated to utilize the relatively high air permeability of polydimethyl siloxane (PDMS) to transport small volume fluid. In the recent past, microporous PDMS has replaced PDMS in this capacity. Microporous PDMS is typically fabricated through a series of steps where a sacrificial template is used to infiltrate the polymer. This template is removed after the polymer undergoes curing. This method has consistently produced a spongy structure that is nonrigid, sticky, and moist rendering it unwieldy. In this work, we present a novel concept of using camphor (Cinnamomum camphora) as a template to fabricate a dry polymeric sponge. The proposed sponge is molded on a sublimable material, camphor to avoid the additional step of template dissolution. The sponge is demonstrated to be stiff yet flexible rendering it convenient to be compacted into a confined space. Additionally, the sponge is dry and nonsticky as compared to structures that have been generated through sugar leaching.
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Research ethics: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: The authors state no conflict of interest.
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Research funding: This research has been jointly funded by Heritage Institute of Technology, Kolkata, India, and Indian Institute of Chemical Engineers (IIChE), Kolkata Chapter. The authors are indebted for the support provided.
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Data availability: Not applicable.
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Articles in the same Issue
- Frontmatter
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- Effect of hydroxy-terminated hyperbranched polymer coated separator on the lithium-ion battery performances
- Enhanced properties of Nafion nanofibrous proton exchange membranes by altering the electrospinning solvents
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- Dry porous polydimethylsiloxane (PDMS): a novel method using camphor as scaffold
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Articles in the same Issue
- Frontmatter
- Material Properties
- Effect of hydroxy-terminated hyperbranched polymer coated separator on the lithium-ion battery performances
- Enhanced properties of Nafion nanofibrous proton exchange membranes by altering the electrospinning solvents
- Impact of proximity of hard and soft segment on IR frequency of carbamate links correlating the mechanical properties of surface-functionalized fly ash–reinforced polyurethane composites
- Effect of cellulose derivatives on crystallization and mechanical properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
- Preparation and Assembly
- Transparent poly(methyl methacrylate-butyl acrylate-hexafluorobutyl methacrylate) for conservation of stone relics: synthesis and test
- Dry porous polydimethylsiloxane (PDMS): a novel method using camphor as scaffold
- Engineering and Processing
- Mixing performance in an asymmetrical non-twin kneading element channel
- Utilizing ResNet for enhanced quality prediction in PET production: an AI-driven approach
