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Liu J, Pan Y, Xu J, Wang Z, Zhu H, Liu G, Zhong J, Jin W. Introducing amphipathic copolymer into intermediate layer to fabricate ultra-thin Pebax composite membrane for efficient CO2 capture. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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2
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Wang X, Liu Y, Cheng H, Ouyang X. Surface Wettability for Skin-Interfaced Sensors and Devices. ADVANCED FUNCTIONAL MATERIALS 2022; 32:2200260. [PMID: 36176721 PMCID: PMC9514151 DOI: 10.1002/adfm.202200260] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Indexed: 05/05/2023]
Abstract
The practical applications of skin-interfaced sensors and devices in daily life hinge on the rational design of surface wettability to maintain device integrity and achieve improved sensing performance under complex hydrated conditions. Various bio-inspired strategies have been implemented to engineer desired surface wettability for varying hydrated conditions. Although the bodily fluids can negatively affect the device performance, they also provide a rich reservoir of health-relevant information and sustained energy for next-generation stretchable self-powered devices. As a result, the design and manipulation of the surface wettability are critical to effectively control the liquid behavior on the device surface for enhanced performance. The sensors and devices with engineered surface wettability can collect and analyze health biomarkers while being minimally affected by bodily fluids or ambient humid environments. The energy harvesters also benefit from surface wettability design to achieve enhanced performance for powering on-body electronics. In this review, we first summarize the commonly used approaches to tune the surface wettability for target applications toward stretchable self-powered devices. By considering the existing challenges, we also discuss the opportunities as a small fraction of potential future developments, which can lead to a new class of skin-interfaced devices for use in digital health and personalized medicine.
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Affiliation(s)
- Xiufeng Wang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Yangchengyi Liu
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Huanyu Cheng
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Xiaoping Ouyang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
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3
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Yoshida M, Nakanishi G, Yamanaka H, Iwamori S. Enhanced adhesion of copper plating to polyether ether ketone based on active oxygen species generated under ultraviolet irradiation. SURF INTERFACE ANAL 2022. [DOI: 10.1002/sia.7088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Munenori Yoshida
- Graduate School of Science and Technology Tokai University Hiratsuka Kanagawa Japan
| | - Gaku Nakanishi
- Graduate School of Engineering Tokai University Hiratsuka Kanagawa Japan
| | - Hiromi Yamanaka
- Graduate School of Engineering Tokai University Hiratsuka Kanagawa Japan
| | - Satoru Iwamori
- Graduate School of Science and Technology Tokai University Hiratsuka Kanagawa Japan
- Graduate School of Engineering Tokai University Hiratsuka Kanagawa Japan
- Research Institute of Science and Technology Tokai University Hiratsuka Kanagawa Japan
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4
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Sun W, Liu J, Hao Q, Lu K, Wu Z, Chen H. A novel Y-shaped photoiniferter used for the construction of polydimethylsiloxane surfaces with antibacterial and antifouling properties. J Mater Chem B 2021; 10:262-270. [PMID: 34889346 DOI: 10.1039/d1tb01968f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The simultaneous introduction of two new functionalities into the same polymeric substrate under mild reaction conditions is an interesting and important topic. Herein, dual-functional polydimethylsiloxane (PDMS) surfaces with antibacterial and antifouling properties were conveniently developed via a novel Y-shaped asymmetric dual-functional photoiniferter (Y-iniferter). The Y-iniferter was initially immobilized onto the PDMS surface by radical coupling under visible light irradiation. Afterwards, poly(2-hydroxyethyl methacrylate) (PHEMA) brushes and antibacterial ionic liquid (IL) fragments were simultaneously immobilized on the Y-iniferter-modified PDMS surfaces by combining the sulfur(VI)-fluoride exchange (SuFEx) click reaction and UV-photoinitiated polymerization. Experiments using E. coli as a model bacterium demonstrated that the modified PDMS surfaces had both the expected antibacterial properties of the IL fragments and the excellent antifouling properties of PHEMA brushes. Furthermore, the cytotoxicity of the modified PDMS surfaces to L929 cells was examined in vitro with a CCK-8 assay, which showed that the modified surfaces maintained excellent cytocompatibility. Briefly, this strategy of constructing an antibacterial and antifouling PDMS surface has the advantages of simplicity and convenience and might inspire the construction of diverse dual-functional surfaces by utilizing PDMS more effectively.
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Affiliation(s)
- Wei Sun
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Jingrui Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Qing Hao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Kunyan Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Zhaoqiang Wu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Hong Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
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5
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Cutroneo M, Havranek V, Mackova A, Malinsky P, Silipigni L, Slepicka P, Fajstavr D, Torrisi L. Synthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation Process. Int J Mol Sci 2021; 22:ijms222212155. [PMID: 34830035 PMCID: PMC8623421 DOI: 10.3390/ijms222212155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/02/2021] [Accepted: 11/08/2021] [Indexed: 11/16/2022] Open
Abstract
Typically, polymeric composites containing nanoparticles are realized by incorporating pre-made nanoparticles into a polymer matrix by using blending solvent or by the reduction of metal salt dispersed in the polymeric matrix. Generally, the production of pre-made Au NPs occurs in liquids with two-step processes: producing the gold nanoparticles first and then adding them to the liquid polymer. A reproducible method to synthetize Au nanoparticles (NPs) into polydimethylsiloxane (PDMS) without any external reducing or stabilizing agent is a challenge. In this paper, a single-step method is proposed to synthetize nanoparticles (NPs) and at the same time to realize reproducible porous and bulk composites using laser ablation in liquid. With this single-step process, the gold nanoparticles are therefore produced directly in the liquid polymer. The optical properties of the suspensions of AuNPs in distilled water and in the curing agent have been analyzed by the UV-VIS spectroscopy, employed in the transmission mode, and compared with those of the pure curing agent. The electrical dc conductivity of the porous PDMS/Au NPs nanocomposites has been evaluated by the I–V characteristics. Scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analysis have monitored the composition and morphology of the so-obtained composites and the size of the fabricated Au nanoparticles. Atomic force microscopy (AFM) has been used to determine the roughness of the bulk PDMS and its Au NP composites.
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Affiliation(s)
- Mariapompea Cutroneo
- Nuclear Physics Institute, AS CR, 250 68 Rez, Czech Republic; (V.H.); (A.M.); (P.M.)
- Correspondence:
| | - Vladimir Havranek
- Nuclear Physics Institute, AS CR, 250 68 Rez, Czech Republic; (V.H.); (A.M.); (P.M.)
| | - Anna Mackova
- Nuclear Physics Institute, AS CR, 250 68 Rez, Czech Republic; (V.H.); (A.M.); (P.M.)
- Department of Physics, Faculty of Science, University of J. E. Purkyně, České Mládeže 8, 400 96 Ústí nad Labem, Czech Republic
| | - Petr Malinsky
- Nuclear Physics Institute, AS CR, 250 68 Rez, Czech Republic; (V.H.); (A.M.); (P.M.)
- Department of Physics, Faculty of Science, University of J. E. Purkyně, České Mládeže 8, 400 96 Ústí nad Labem, Czech Republic
| | - Letteria Silipigni
- Department of Physics (MIFT), Messina University, V.le F.S. D’Alcontres 31, 98166 Messina, Italy; (L.S.); (L.T.)
- INFN, Sezione di Catania, Via S. Sofia 64, 95123 Catania, Italy
| | - Petr Slepicka
- Department of Solid State Engineering, Institute of Chemical Technology, 166 28 Prague, Czech Republic; (P.S.); (D.F.)
| | - Dominik Fajstavr
- Department of Solid State Engineering, Institute of Chemical Technology, 166 28 Prague, Czech Republic; (P.S.); (D.F.)
| | - Lorenzo Torrisi
- Department of Physics (MIFT), Messina University, V.le F.S. D’Alcontres 31, 98166 Messina, Italy; (L.S.); (L.T.)
- INFN, Sezione di Catania, Via S. Sofia 64, 95123 Catania, Italy
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Joo H, Park J, Sutthiwanjampa C, Kim H, Bae T, Kim W, Choi J, Kim M, Kang S, Park H. Surface Coating with Hyaluronic Acid-Gelatin-Crosslinked Hydrogel on Gelatin-Conjugated Poly(dimethylsiloxane) for Implantable Medical Device-Induced Fibrosis. Pharmaceutics 2021; 13:pharmaceutics13020269. [PMID: 33671146 PMCID: PMC7922955 DOI: 10.3390/pharmaceutics13020269] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/09/2021] [Accepted: 02/12/2021] [Indexed: 12/26/2022] Open
Abstract
Polydimethylsiloxane (PDMS) is a biocompatible polymer that has been applied in many fields. However, the surface hydrophobicity of PDMS can limit successful implementation, and this must be reduced by surface modification to improve biocompatibility. In this study, we modified the PDMS surface with a hydrogel and investigated the effect of this on hydrophilicity, bacterial adhesion, cell viability, immune response, and biocompatibility of PDMS. Hydrogels were created from hyaluronic acid and gelatin using a Schiff-base reaction. The PDMS surface and hydrogel were characterized using nuclear magnetic resonance, X-ray photoelectron spectroscopy, attenuated total reflection Fourier-transform infrared spectroscopy, and scanning electron microscopy. The hydrophilicity of the surface was confirmed via a decrease in the water contact angle. Bacterial anti-adhesion was demonstrated for Pseudomonas aeruginosa, Ralstonia pickettii, and Staphylococcus epidermidis, and viability and improved distribution of human-derived adipose stem cells were also confirmed. Decreased capsular tissue responses were observed in vivo with looser collagen distribution and reduced cytokine expression on the hydrogel-coated surface. Hydrogel coating on treated PDMS is a promising method to improve the surface hydrophilicity and biocompatibility for surface modification of biomedical applications.
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Affiliation(s)
- Haejin Joo
- Department of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea; (H.J.); (C.S.)
| | - Jonghyun Park
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul 06973, Korea; (J.P.); (H.K.); (T.B.); (W.K.)
| | | | - Hankoo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul 06973, Korea; (J.P.); (H.K.); (T.B.); (W.K.)
| | - Taehui Bae
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul 06973, Korea; (J.P.); (H.K.); (T.B.); (W.K.)
| | - Wooseob Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul 06973, Korea; (J.P.); (H.K.); (T.B.); (W.K.)
| | - Jinhwa Choi
- Department of Radiation Oncology, Chung-Ang University Hospital, Seoul 06973, Korea;
| | - Mikyung Kim
- Department of Pathology, Chung-Ang University Hospital, Seoul 06973, Korea;
| | - Shinhyuk Kang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Seoul 06973, Korea; (J.P.); (H.K.); (T.B.); (W.K.)
- Correspondence: (S.K.); (H.P.); Tel.: +82-2-6299-1615 (S.K.); +82-2-820-5940 (H.P.)
| | - Hansoo Park
- Department of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea; (H.J.); (C.S.)
- Correspondence: (S.K.); (H.P.); Tel.: +82-2-6299-1615 (S.K.); +82-2-820-5940 (H.P.)
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7
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Maruyama Y, Nagamine K, Iwasa S, Miyabo A, Tokito S. A heat-melt adhesive-assisted transferable electrode films. Sci Rep 2021; 11:36. [PMID: 33420083 PMCID: PMC7794357 DOI: 10.1038/s41598-020-79504-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 12/07/2020] [Indexed: 11/09/2022] Open
Abstract
This report is the first on heat-assisted transferable battery components, enabling manufacturing batteries on non-planer surfaces such as a curved surface and an edge. The transferrable battery components were composed of two layers: a cathode or an anode and a conductive heal-melt adhesive layer on a silicone-based flexible supporting paper. These mechanically-durable, flexible components enabled conformable adhesion even on curved surfaces and substrate edges. As a model battery, the manganese dioxide-zinc system was constructed on a curved surface using transfer techniques and showed a practical capacity of 1.8 mAh cm-2 per unit electrode area. These transferable electrodes allow arbitrary design of batteries according to the power consumption of IoT devices to be fabricated on unreported geometries where has been considered as a dead space.
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Affiliation(s)
- Yuki Maruyama
- Department of Organic Materials Science, Yamagata University, Yamagata, Japan
| | - Kuniaki Nagamine
- Department of Organic Materials Science, Yamagata University, Yamagata, Japan. .,Research Center for Organic Electronics, Yamagata University, Yamagata, Japan.
| | - Shigeyuki Iwasa
- Research Center for Organic Electronics, Yamagata University, Yamagata, Japan
| | - Atsushi Miyabo
- Arkema K. K., 2-2-2 Uchisaiwaicho, Chiyoda-ku, Tokyo, 100-0011, Japan
| | - Shizuo Tokito
- Department of Organic Materials Science, Yamagata University, Yamagata, Japan. .,Research Center for Organic Electronics, Yamagata University, Yamagata, Japan.
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8
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Huo L, Luo J, Huang X, Zhang S, Gao S, Long B, Gao J. Superhydrophobic and anti-ultraviolet polymer nanofiber composite with excellent stretchability and durability for efficient oil/water separation. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125224] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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9
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Niinivaara E, Desmaisons J, Dufresne A, Bras J, Cranston ED. Film thickness limits of a buckling-based method to determine mechanical properties of polymer coatings. J Colloid Interface Sci 2020; 582:227-235. [PMID: 32823124 DOI: 10.1016/j.jcis.2020.08.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 08/05/2020] [Accepted: 08/06/2020] [Indexed: 11/19/2022]
Abstract
Characterizing the mechanical properties of polymer coatings typically requires access to specialty equipment, the analysis through which can be tedious despite instrumental precision. An alternative method reported in the literature,strain-induced elastic buckling instability for mechanical measurements (SIEBIMM), is a high throughput, facile yet accurate method, used to characterize the Young's modulus of supported films and coatings. SIEBIMM can easily be implemented in both academic and industrial settings. HYPOTHESIS We hypothesize that the SIEBIMM method has an upper coating thickness limit beyond which the assumptions and practicality of the method are no longer valid. EXPERIMENTS The Young's moduli of model polyvinyl alcohol coatings (on polydimethylsiloxanesubstrates) with thicknesses ranging from 67 nm to 40 µm were determined using the SIEBIMM method and the data were subjected to a rigorous statistical analysis. FINDINGS SIEBIMM could accurately characterize coatings up to 35 µm thick. The Young's modulus of all coatings ≤ 35 µm was 1.6 ± 0.1 GPa at 50% RH, which agreed with free-standing polyvinyl alcohol films measured by traditional tensile testing. For the method to be used on thicker coatings, it is essential to consistently measure coating thickness and buckling wavelength at the same location to minimize potential error.
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Affiliation(s)
- Elina Niinivaara
- Department of Chemical Engineering, McMaster University, Hamilton, ON L8S 4L8, Canada; Department of Wood Science, University of British Columbia, Vancouver, BC V6T 1Z4, Canada; Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI0076 Aalto, Espoo, Finland
| | - Johanna Desmaisons
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LGP2, F-38000 Grenoble, France
| | - Alain Dufresne
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LGP2, F-38000 Grenoble, France
| | - Julien Bras
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LGP2, F-38000 Grenoble, France; Nestle Research Center, 1000 Lausanne, Switzerland.
| | - Emily D Cranston
- Department of Chemical Engineering, McMaster University, Hamilton, ON L8S 4L8, Canada; Department of Wood Science, University of British Columbia, Vancouver, BC V6T 1Z4, Canada; Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada.
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10
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Selyanchyn O, Selyanchyn R, Fujikawa S. Critical Role of the Molecular Interface in Double-Layered Pebax-1657/PDMS Nanomembranes for Highly Efficient CO 2/N 2 Gas Separation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:33196-33209. [PMID: 32589389 DOI: 10.1021/acsami.0c07344] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, we deposited a CO2-selective block copolymer, Pebax-1657, as a selective layer with a thickness of 2-20 nm on the oxygen plasma-activated surface of poly(dimethylsiloxane) (PDMS) used as a gutter layer (thickness ∼400 nm). This double-layered structure was subsequently transferred onto the polyacrylonitrile (PAN) microporous support and studied for CO2/N2 separation. The effect of interfacial molecular arrangements between the selective and gutter layers on CO2 permeance and selectivity has been investigated. We have revealed that the gas permeance and selectivity do not follow the conventional theoretical predictions for the multilayer membrane (resistance in series transport model); specifically, more selective CO2/N2 separation membranes were achieved with ultrathin selective layers. Detailed characterization of the chemical structure of the outermost membrane surface suggests that nanoscale blending of the ultrathin Pebax-1657 layer with O2 plasma-activated PDMS chains on the surface takes place. This nanoblending at the interface between the selective and gutter layers played a critical role in enhancing the CO2/N2 selectivity. CO2 permeances in the developed thin-film composite membranes (TFCM) were between 1200 and 3500 gas permeance units (GPU) and the respective CO2/N2 selectivities were between 72 and 23, providing the gas separation performance suitable for CO2 capture in postcombustion processes. This interpenetrating polymer interface enhanced the overall selectivity of the membrane significantly, exceeding the separation ability of the pristine Pebax-1657 polymer.
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Affiliation(s)
- Olena Selyanchyn
- WPI International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Roman Selyanchyn
- WPI International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shigenori Fujikawa
- WPI International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Molecular Systems (CMS), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- NanoMembrane Technologies Inc., 4-1, Kyudai-Shimachi, Nishi-ku, Fukuoka 819-0388, Japan
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11
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Biomaterial Embedding Process for Ceramic-Polymer Microfluidic Sensors. SENSORS 2020; 20:s20061745. [PMID: 32245163 PMCID: PMC7147599 DOI: 10.3390/s20061745] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/09/2020] [Accepted: 03/19/2020] [Indexed: 11/23/2022]
Abstract
One of the major issues in microfluidic biosensors is biolayer deposition. Typical manufacturing processes, such as firing of ceramics and anodic bonding of silicon and glass, involve exposure to high temperatures, which any biomaterial is very vulnerable to. Therefore, current methods are based on deposition from liquid, for example, chemical bath deposition (CBD) and electrodeposition (ED). However, such approaches are not suitable for many biomaterials. This problem was partially resolved by introduction of ceramic–polymer bonding using plasma treatment. This method introduces an approximately 15-min-long window for biomodification between plasma activation and sealing the system with a polymer cap. Unfortunately, some biochemical processes are rather slow, and this time is not sufficient for the proper attachment of a biomaterial to the surface. Therefore, a novel method, based on plasma activation after biomodification, is introduced. Crucially, the discharge occurs selectively; otherwise, it would etch the biomaterial. Difficulties in manufacturing ceramic biosensors could be overcome by selective surface modification using plasma treatment and bonding to polymer. The area of plasma modification was investigated through contact-angle measurements and Fourier-transform infrared (FTIR) analyses. A sample structure was manufactured in order to prove the concept. The results show that the method is viable.
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12
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Park J, Woo S, Kim S, Kim M, Hwang W. Air-Stable Aerophobic Polydimethylsiloxane Tube with Efficient Self-Removal of Air Bubbles. ACS OMEGA 2019; 4:18304-18311. [PMID: 31720531 PMCID: PMC6844094 DOI: 10.1021/acsomega.9b02376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
The adherence of underwater air bubbles to surfaces is a serious cause of malfunction in applications such as microfluidics, transport, and space devices. However, realizing spontaneous and additional unpowered transport of underwater air bubbles inside tubes remains challenging. Although superhydrophilic polydimethylsiloxane (PDMS) tubes are attracting attention as air bubble repellents, superhydrophilic PDMS, which is fabricated via oxygen plasma treatment, has a disadvantage in that it is weak against aging. Here, we present a tube with the ability to self-remove air bubbles, which overcomes the drawback of rapid aging. PDMS containing Silwet L-77 with a hierarchical nano-microstructure exhibiting subaqueous aerophobicity was fabricated. We conducted adherence and saturation experiments of air bubbles using the fabricated PDMS tube with Silwet L-77 to investigate the mechanism of bubbles adhering to and separating from the fabricated tube surface. The developed PDMS with Silwet L-77 exhibits a strong self-removal effect with an air bubble removal of 97.7%. The adherence and saturation experiments suggest that the transparent superhydrophilic-underwater aerophobic PDMS is a potentially exceptional tool for spontaneously separating air bubbles attached to tube surfaces.
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13
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RTV mould rubber cured by plasma and surface coating technologies. J RUBBER RES 2019. [DOI: 10.1007/s42464-019-00019-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Wang Y, Yao B, Chen H, Wang H, Li C, Yang Z. Preparation of anisotropic conductive graphene aerogel/polydimethylsiloxane composites as LEGO® modulars. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.01.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Scharin-Mehlmann M, Häring A, Rommel M, Dirnecker T, Friedrich O, Frey L, Gilbert DF. Nano- and Micro-Patterned S-, H-, and X-PDMS for Cell-Based Applications: Comparison of Wettability, Roughness, and Cell-Derived Parameters. Front Bioeng Biotechnol 2018; 6:51. [PMID: 29765941 PMCID: PMC5938557 DOI: 10.3389/fbioe.2018.00051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 04/16/2018] [Indexed: 12/12/2022] Open
Abstract
Polydimethylsiloxane (PDMS) is a promising biomaterial for generating artificial extracellular matrix (ECM) like patterned topographies, yet its hydrophobic nature limits its applicability to cell-based approaches. Although plasma treatment can enhance the wettability of PDMS, the surface is known to recover its hydrophobicity within a few hours after exposure to air. To investigate the capability of a novel PDMS-type (X-PDMS) for in vitro based assessment of physiological cell properties, we designed and fabricated plane as well as nano- and micrometer-scaled pillar-patterned growth substrates using the elastomer types S-, H- and X-PDMS, which were fabricated from commercially available components. Most importantly, we compared X-PDMS based growth substrates which have not yet been investigated in this context with H- as well as well-known S-PDMS based substrates. Due to its applicability to fabricating nanometer-sized topographic features with high accuracy and pattern fidelity, this material may be of high relevance for specific biomedical applications. To assess their applicability to cell-based approaches, we characterized the generated surfaces using water contact angle (WCA) measurement and atomic force microscopy (AFM) as indicators of wettability and roughness, respectively. We further assessed cell number, cell area and cellular elongation as indirect measures of cellular viability and adhesion by image cytometry and phenotypic profiling, respectively, using Calcein and Hoechst 33342 stained human foreskin fibroblasts as a model system. We show for the first time that different PDMS types are differently sensitive to plasma treatment. We further demonstrate that surface hydrophobicity changes along with changing height of the pillar-structures. Our data indicate that plane and structured X-PDMS shows cytocompatibility and adhesive properties comparable to the previously described elastomer types S- and H-PDMS. We conclude that nanometer-sized structuring of X-PDMS may serve as a powerful method for altering surface properties toward production of biomedical devices for cell-based applications.
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Affiliation(s)
- Marina Scharin-Mehlmann
- Chair of Electron Devices, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Aaron Häring
- Chair of Electron Devices, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Institute of Medical Biotechnology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Mathias Rommel
- Fraunhofer Institute for Integrated Systems and Device Technology (IISB), Erlangen, Germany
| | - Tobias Dirnecker
- Chair of Electron Devices, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Oliver Friedrich
- Institute of Medical Biotechnology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Erlangen Graduate School in Advanced Optical Technologies (SAOT), Erlangen, Germany
| | - Lothar Frey
- Chair of Electron Devices, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Fraunhofer Institute for Integrated Systems and Device Technology (IISB), Erlangen, Germany.,Erlangen Graduate School in Advanced Optical Technologies (SAOT), Erlangen, Germany
| | - Daniel F Gilbert
- Institute of Medical Biotechnology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Erlangen Graduate School in Advanced Optical Technologies (SAOT), Erlangen, Germany
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16
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Abstract
Surface modification of PDMS, polycarbonate, and acrylic resin was examined using various methacryl polymers bearing sulfobetaine, phosphoryl choline, and oligoethylene glycol units. We have found that zwitterionic polymers are adsorbed on the PDMS surface treated with plasma. The surface of PDMS is stable to keep high hydrophilicity after a month of the modification. On the other hand, one of sulfobetaine polymers showed distinguished adsorption behavior in the case of polycarbonate surface treated with plasma. Suppression effect for nonspecific adsorption of BSA was evaluated using polycarbonate and acrylic resin modified with the polymers. The modified surfaces showed suppression effect for nonspecific adsorption of BSA compared with the surface only treated with plasma.
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Affiliation(s)
- Mutsuo Tanaka
- Health Research Institute, Advanced Industrial Science and Technology (AIST)
| | - Shigeru Kurosawa
- Health Research Institute, Advanced Industrial Science and Technology (AIST)
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17
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Chae MS, Kim J, Jeong D, Kim Y, Roh JH, Lee SM, Heo Y, Kang JY, Lee JH, Yoon DS, Kim TG, Chang ST, Hwang KS. Enhancing surface functionality of reduced graphene oxide biosensors by oxygen plasma treatment for Alzheimer's disease diagnosis. Biosens Bioelectron 2017; 92:610-617. [DOI: 10.1016/j.bios.2016.10.049] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 10/05/2016] [Accepted: 10/19/2016] [Indexed: 10/20/2022]
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18
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Effect of plasma surface treatment of poly(dimethylsiloxane) on the permeation of pharmaceutical compounds. J Pharm Anal 2017; 7:338-342. [PMID: 29404058 PMCID: PMC5790694 DOI: 10.1016/j.jpha.2017.05.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 05/15/2017] [Accepted: 05/15/2017] [Indexed: 12/16/2022] Open
Abstract
This paper addresses the modification of poly(dimethylsiloxane), i.e. PDMS, using plasma surface treatment and a novel application of the membrane created. A set of model compounds were analysed to determine their permeation through PDMS, both with and without plasma treatment. It was found that plasma treatment reduced permeation for the majority of compounds but had little effect on some compounds, such as caffeine, with results indicating that polarity plays an important role in permeation, as is seen in human skin. Most importantly, a direct correlation was observed between plasma-modified permeation data and literature data through calculation of membrane permeability (Kp) values suggesting plasma-modified silicone membrane (PMSM) could be considered as a suitable in vivo replacement to predict clinical skin permeation.
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19
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Lin D, Zhao Q, Yan M. Surface modification of polydimethylsiloxane microfluidic chips by polyamidoamine dendrimers for amino acid separation. J Appl Polym Sci 2016. [DOI: 10.1002/app.43580] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Dong Lin
- School of Pharmacy; Binzhou Medical University; Yantai 264003 People's Republic of China
| | - Qin Zhao
- College of Food Engineering; Ludong University; Yantai 264025 People's Republic of China
| | - Miaomiao Yan
- School of Pharmacy; Binzhou Medical University; Yantai 264003 People's Republic of China
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20
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Zargar R, Nourmohammadi J, Amoabediny G. Preparation, characterization, and silanization of 3D microporous PDMS structure with properly sized pores for endothelial cell culture. Biotechnol Appl Biochem 2015; 63:190-9. [DOI: 10.1002/bab.1371] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Accepted: 03/12/2015] [Indexed: 01/08/2023]
Affiliation(s)
- Reyhaneh Zargar
- Department of Biomedical Engineering; Faculty of New Sciences and Technologies University of Tehran; Tehran Iran
| | - Jhamak Nourmohammadi
- Department of Biomedical Engineering; Faculty of New Sciences and Technologies University of Tehran; Tehran Iran
| | - Ghassem Amoabediny
- Department of Chemical Engineering; College of Engineering; University of Tehran; Tehran Iran
- Research Center for New Technologies in Life Science Engineering; University of Tehran; Tehran Iran
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21
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Kaczorowski W, Szymanski W, Batory D, Niedzielski P. Effect of plasma treatment on the surface properties of polydimethylsiloxane. J Appl Polym Sci 2014. [DOI: 10.1002/app.41635] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Witold Kaczorowski
- Division of Biomedical Engineering and Functional Materials, Institute of Materials Science and Engineering; Lodz University of Technology; Lodz Poland
| | - Witold Szymanski
- Division of Biomedical Engineering and Functional Materials, Institute of Materials Science and Engineering; Lodz University of Technology; Lodz Poland
| | - Damian Batory
- Division of Biomedical Engineering and Functional Materials, Institute of Materials Science and Engineering; Lodz University of Technology; Lodz Poland
| | - Piotr Niedzielski
- Division of Biomedical Engineering and Functional Materials, Institute of Materials Science and Engineering; Lodz University of Technology; Lodz Poland
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22
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Scharin M, Rommel M, Dirnecker T, Marhenke J, Herrmann B, Rumler M, Fader R, Frey L, Herrmann M. Bioactivation of Plane and Patterned PDMS Thin Films by Wettability Engineering. BIONANOSCIENCE 2014. [DOI: 10.1007/s12668-014-0145-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Abstract
In this work the effect of air plasmas on wettability of Polydimethylsiloxane (PDMS) and polyethylene terephthalate (PET) was studied. These polymers are widely used materials in the fabrication of microfluidic devices. The microfluidic system fabricated from native PET and PDMS requires active pumping mechanism, due to a low hydrophilic surface behavior. To render hydrophilic and increase the capillary flow into the device, plasma treatments can be used. Air plasma treatment is an interesting technology for microfluidic fields due to simplicity of use and low cost. This study describes the effect of the working plasma pressure on wettability of polymers. The polymers were treated by RF plasma and the wettability was studied by means of sessile contact angle. The results established that the air plasma can increase the wettability of both polymers. Moreover we demonstrated that by optimizing the working pressure a superhydrophilic surface (with a contact angle less than 5°) can be obtained. The findings suggest that air plasma treatments are a suitable technology to enhance polymers surface wetting performance for microfluidic devices.
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Mikhail AS, Ranger JJ, Liu L, Longenecker R, Thompson DB, Sheardown HD, Brook MA. Rapid and Efficient Assembly of Functional Silicone Surfaces Protected by PEG: Cell Adhesion to Peptide-Modified PDMS. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 21:821-42. [DOI: 10.1163/156856209x445311] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Andrew S. Mikhail
- a Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, ON, Canada L8S 4L7
| | - Jill J. Ranger
- b Department of Chemistry, McMaster University, 1280 Main St. W., Hamilton, ON, Canada L8S 4M1
| | - Lihua Liu
- c Department of Chemistry, McMaster University, 1280 Main St. W., Hamilton, ON, Canada L8S 4M1
| | - Ryan Longenecker
- d Department of Chemistry, McMaster University, 1280 Main St. W., Hamilton, ON, Canada L8S 4M1
| | - David B. Thompson
- e Department of Chemistry, McMaster University, 1280 Main St. W., Hamilton, ON, Canada L8S 4M1
| | - Heather D. Sheardown
- f Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, ON, Canada L8S 4L7
| | - Michael A. Brook
- g Department of Chemistry, McMaster University, 1280 Main St. W., Hamilton, ON, Canada L8S 4M1.
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25
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Ding Y, Jiao ZS, Guo DJ, Xiao SJ, Tan W, Dai ZD. Tunable cohesion and water lubrication of PEG-g-PMHS-c-PMVS copolymer membranes. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2011.12.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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26
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Wang JJ, Feng LJ, Lei AL, Yan AJ, Wang XJ. Thermal stability and mechanical properties of room temperature vulcanized silicone rubbers. J Appl Polym Sci 2011. [DOI: 10.1002/app.35669] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Lopez AI, Kumar A, Planas MR, Li Y, Nguyen TV, Cai C. Biofunctionalization of silicone polymers using poly(amidoamine) dendrimers and a mannose derivative for prolonged interference against pathogen colonization. Biomaterials 2011; 32:4336-46. [PMID: 21435713 PMCID: PMC3085595 DOI: 10.1016/j.biomaterials.2011.02.056] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Accepted: 02/27/2011] [Indexed: 01/01/2023]
Abstract
Despite numerous preventive strategies on bacterial adhesion, pathogenic biofilm formation remained the major cause of medical device-related infections. Bacterial interference is a promising strategy that uses pre-established biofilms of benign bacteria to serve as live, protective coating against pathogen colonization. However, the application of this strategy to silicone urinary catheters was hampered by low adherence of benign bacteria onto silicone materials. In this work, we present a general method for biofunctionalization of silicone (PDMS) as one of the most widely used materials for biomedical devices. We used mild CO(2) plasma to activate PDMS surface followed by simple attachment of generation 5 (G5) poly(amidoamine) (PAMAM) dendrimers to generate an amino-terminated surface that were maintained even after storage in PBS buffer for 36 days. We then covalently attach a carboxy-terminated mannose derivative to the modified PDMS to promote the adherence of benign Escherichia coli 83972 expressing mannose-binding type 1 fimbriae. We demonstrated that dense, stable biofilms of E. coli 83972 could be established within 48 h on the mannose-coated PDMS. Significantly, this benign biofilm reduced the adherence of the uropathogenic Enterococcus faecalis by 104-fold after 72 h, while the benign bacteria on the unmodified substrate by only 5.5-fold.
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Affiliation(s)
- Analette I. Lopez
- Department of Chemistry, University of Houston, Houston, TX 77204, USA
| | - Amit Kumar
- Department of Chemistry, University of Houston, Houston, TX 77204, USA
| | - Megan R. Planas
- Department of Chemistry, University of Houston, Houston, TX 77204, USA
| | - Yan Li
- Department of Chemistry, University of Houston, Houston, TX 77204, USA
| | - Thuy V. Nguyen
- Department of Chemistry, University of Houston, Houston, TX 77204, USA
| | - Chengzhi Cai
- Department of Chemistry, University of Houston, Houston, TX 77204, USA
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28
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Bodas D, Rauch JY, Khan-Malek C. Creation of a stable hydrophilic poly(dimethyl siloxane) surface by the plasma-induced crosslinking of monomers. J Appl Polym Sci 2010. [DOI: 10.1002/app.33089] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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29
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Pinto S, Alves P, Matos CM, Santos AC, Rodrigues LR, Teixeira JA, Gil MH. Poly(dimethyl siloxane) surface modification by low pressure plasma to improve its characteristics towards biomedical applications. Colloids Surf B Biointerfaces 2010; 81:20-6. [PMID: 20638249 DOI: 10.1016/j.colsurfb.2010.06.014] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2010] [Revised: 06/16/2010] [Accepted: 06/17/2010] [Indexed: 11/16/2022]
Abstract
Poly(dimethyl siloxane) elastomer, (PDMS) is widely used as a biomaterial. However, PDMS is very hydrophobic and easily colonized by several bacteria and yeasts. Consequently, surface modification has been used to improve its wettability and reduce bacterial adhesion. The aim of this work was to modify the PDMS surface in order to improve its hydrophilicity and bacterial cell repulsion to be used as a biomaterial. Plasma was used to activate the PDMS surface and sequentially promote the attachment of a synthetic surfactant, Pluronic F-68, or a polymer, Poly(ethylene glycol) methyl methacrylate, PEGMA. Bare PDMS, PDMS argon plasma activated, PDMS coated with Pluronic F-68 and PEGMA-grafted PDMS were characterized by contact angle measurements, X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). The influence of the surface modifications on blood compatibility of the materials was evaluated by thrombosis and haemolysis assays. The cytotoxicity of these materials was tested for mouse macrophages. After modification, AFM results suggest the presence of a distinct layer at the surface and by the contact angle measures it was observed an increase of hydrophilicity. XPS analysis indicates an increase of the oxygen content at the surface as a result of the modification. All the studied materials revealed no toxicity and were found to be non-haemolytic or in some cases slightly haemolytic. Therefore, plasma was found to be an effective technique for the PDMS surface modification.
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Affiliation(s)
- S Pinto
- Department of Chemical Engineering, University of Coimbra, Polo II, Pinhal de Marrocos, Rua Sílvio Lima, 3030-790 Coimbra, Portugal.
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30
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Urushihara Y, Nishino T. Surface properties of O2-plasma-treated thermoplastic fluoroelastomers under mechanical stretching. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.04.062] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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