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Chen L, Pan S, Wang L, Liu X, Jin Z, Xia R, Chang Y, Tian Y, Gong Y, Wang G, Zhang Q. Superhydrophobic Cellulose Nanofiber Aerogels for Efficient Hemostasis with Minimal Blood Loss. ACS APPLIED MATERIALS & INTERFACES 2024; 16:47294-47302. [PMID: 39219058 DOI: 10.1021/acsami.4c10505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Reducing unnecessary blood loss in hemostasis is a major challenge for traditional hemostatic materials due to uncontrolled blood absorption. Tuning the hydrophilic and hydrophobic properties of hemostatic materials provides a road to reduce blood loss. Here, we developed a superhydrophobic aerogel that enabled remarkably reduced blood loss. The aerogel was fabricated with polydopamine-coated and fluoroalkyl chain-modified bacterial cellulose via a directional freeze-drying method. Primarily, the hydrophobic feature prevented blood from uncontrolled absorption by the material and overflowing laterally. Additionally, the aerogel had a dense network of channels that allowed it to absorb water from blood due to the capillary effect, and fluoroalkyl chains trapped the blood cells entering the channels to form a compact barrier via hydrophobic interaction at the bottom of the aerogel, causing quick fibrin generation and blood coagulation. The animal experiments reveal that the aerogel reduced the hemostatic time by 68% and blood loss by 87 wt % compared with QuikClot combat gauze. The study demonstrates the superiority of superhydrophobic aerogels for hemostasis and provides new insights into the development of hemostatic materials.
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Affiliation(s)
- Lei Chen
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Siwen Pan
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Li Wang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Xiaodi Liu
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Zhiping Jin
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Ruicai Xia
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Yuqing Chang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Yichen Tian
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Yao Gong
- Department of Stomatology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P. R. China
| | - Guodong Wang
- Department of Stomatology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P. R. China
| | - Qiang Zhang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
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2
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Whang K, Min J, Shin Y, Hwang I, Lee H, Kwak T, La JA, Kim S, Kim D, Lee LP, Kang T. Capillarity-Driven Enrichment and Hydrodynamic Trapping of Trace Nucleic Acids by Plasmonic Cavity Membrane for Rapid and Sensitive Detections. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2403896. [PMID: 38663435 DOI: 10.1002/adma.202403896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 04/22/2024] [Indexed: 05/03/2024]
Abstract
Small-reactor-based polymerase chain reaction (PCR) has attracted considerable attention. A significant number of tiny reactors must be prepared in parallel to capture, amplify, and accurately quantify few target genes in clinically relevant large volume, which, however, requires sophisticated microfabrication and longer sample-to-answer time. Here, single plasmonic cavity membrane is reported that not only enriches and captures few nucleic acids by taking advantage of both capillarity and hydrodynamic trapping but also quickly amplifies them for sensitive plasmonic detection. The plasmonic cavity membrane with few nanoliters in a void volume is fabricated by self-assembling gold nanorods with SiO2 tips. Simulations reveal that hydrodynamic stagnation between the SiO2 tips is mainly responsible for the trapping of the nucleic acid in the membrane. Finally, it is shown that the plasmonic cavity membrane is capable of enriching severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) genes up to 20 000-fold within 1 min, amplifying within 3 min, and detecting the trace genes as low as a single copy µL-1. It is anticipated that this work not only expands the utility of PCR but also provides an innovative way of the enrichment and detection of trace biomolecules in a variety of point-of-care testing applications.
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Affiliation(s)
- Keumrai Whang
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 04107, South Korea
- Institute of Integrated Biotechnology, Sogang University, Seoul, 04107, South Korea
| | - Junwon Min
- Department of Mechanical Engineering, Sogang University, Seoul, 04107, South Korea
| | - Yonghee Shin
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 04107, South Korea
- Institute of Integrated Biotechnology, Sogang University, Seoul, 04107, South Korea
| | - Inhyeok Hwang
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 04107, South Korea
- Institute of Integrated Biotechnology, Sogang University, Seoul, 04107, South Korea
| | - Hyunjoo Lee
- Department of Mechanical Engineering, Sogang University, Seoul, 04107, South Korea
| | - Taejin Kwak
- Department of Mechanical Engineering, Sogang University, Seoul, 04107, South Korea
| | - Ju A La
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 04107, South Korea
- Institute of Integrated Biotechnology, Sogang University, Seoul, 04107, South Korea
| | - Sungbong Kim
- Institute of Integrated Biotechnology, Sogang University, Seoul, 04107, South Korea
- Department of Chemistry, Military Academy, Seoul, 01805, South Korea
| | - Dongchoul Kim
- Department of Mechanical Engineering, Sogang University, Seoul, 04107, South Korea
| | - Luke P Lee
- Harvard Institute of Medicine, Harvard Medical School, Brigham and Women's Hospital, Harvard University, Boston, MA, 02115, USA
- Department of Bioengineering, Department of Electrical Engineering and Computer Science, University of California at Berkeley, Berkeley, CA, 94720, USA
- Institute of Quantum Biophysics, Department of Biophysics, Sungkyunkwan University, Suwonsi, Gyeonggi-do, 16419, South Korea
| | - Taewook Kang
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 04107, South Korea
- Institute of Integrated Biotechnology, Sogang University, Seoul, 04107, South Korea
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3
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Dai Z, Lei M, Ding S, Zhou Q, Ji B, Wang M, Zhou B. Durable superhydrophobic surface in wearable sensors: From nature to application. EXPLORATION (BEIJING, CHINA) 2024; 4:20230046. [PMID: 38855620 PMCID: PMC11022629 DOI: 10.1002/exp.20230046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 10/02/2023] [Indexed: 06/11/2024]
Abstract
The current generation of wearable sensors often experiences signal interference and external corrosion, leading to device degradation and failure. To address these challenges, the biomimetic superhydrophobic approach has been developed, which offers self-cleaning, low adhesion, corrosion resistance, anti-interference, and other properties. Such surfaces possess hierarchical nanostructures and low surface energy, resulting in a smaller contact area with the skin or external environment. Liquid droplets can even become suspended outside the flexible electronics, reducing the risk of pollution and signal interference, which contributes to the long-term stability of the device in complex environments. Additionally, the coupling of superhydrophobic surfaces and flexible electronics can potentially enhance the device performance due to their large specific surface area and low surface energy. However, the fragility of layered textures in various scenarios and the lack of standardized evaluation and testing methods limit the industrial production of superhydrophobic wearable sensors. This review provides an overview of recent research on superhydrophobic flexible wearable sensors, including the fabrication methodology, evaluation, and specific application targets. The processing, performance, and characteristics of superhydrophobic surfaces are discussed, as well as the working mechanisms and potential challenges of superhydrophobic flexible electronics. Moreover, evaluation strategies for application-oriented superhydrophobic surfaces are presented.
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Affiliation(s)
- Ziyi Dai
- Joint Key Laboratory of the Ministry of EducationInstitute of Applied Physics and Materials EngineeringUniversity of MacauAvenida da UniversidadeTaipaMacauChina
- State Key Laboratory of Crystal MaterialsInstitute of Novel SemiconductorsSchool of MicroelectronicsShandong UniversityJinanChina
| | - Ming Lei
- Joint Key Laboratory of the Ministry of EducationInstitute of Applied Physics and Materials EngineeringUniversity of MacauAvenida da UniversidadeTaipaMacauChina
| | - Sen Ding
- Joint Key Laboratory of the Ministry of EducationInstitute of Applied Physics and Materials EngineeringUniversity of MacauAvenida da UniversidadeTaipaMacauChina
| | - Qian Zhou
- School of Physics and ElectronicsCentral South UniversityChangshaChina
| | - Bing Ji
- School of Physics and ElectronicsHunan Normal UniversityChangshaChina
| | - Mingrui Wang
- Department of Mechanical EngineeringUniversity of AucklandAucklandNew Zealand
| | - Bingpu Zhou
- Joint Key Laboratory of the Ministry of EducationInstitute of Applied Physics and Materials EngineeringUniversity of MacauAvenida da UniversidadeTaipaMacauChina
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Luo J, Yu H, Lu B, Wang D, Deng X. Superhydrophobic Biological Fluid-Repellent Surfaces: Mechanisms and Applications. SMALL METHODS 2022; 6:e2201106. [PMID: 36287096 DOI: 10.1002/smtd.202201106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Superhydrophobic biological fluid-repellent surfaces (SBFRSs) have attracted great attention in the treatment of blood and urine-related diseases because of their unique wettability and compatibility, which creates a new path for the development of medical apparatus and instruments, and are expected to create advances in various fields. Here, this review provides an up-to-date summary of research progress on the repellent mechanism and application of SBFRSs. The underlying physical and chemical principles for designing superhydrophobic surfaces are first introduced. Then, the dialectical influences of solid-liquid interactions between superhydrophobic surfaces and biological fluids on the wettability and compatibility are emphatically expounded. Subsequently, attention is drawn to the recent applications of SBFRSs in biomedical fields, such as surgical medical apparatus, implant materials, extracorporeal circulation devices, and biological fluid detection. Finally, the outlook and challenges in terms of employing SBFRSs are also discussed. This review is expected to provide a comprehensive guidance for the preparation of SBFRSs with compatibility and long-term superhydrophobic stability that is closely related to clinical applications.
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Affiliation(s)
- Jing Luo
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Huali Yu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Binyang Lu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Dehui Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Xu Deng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
- Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen, 518110, P. R. China
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Zhang J, Li G, Li D, Zhang X, Li Q, Liu Z, Fang Y, Zhang S, Man J. In Vivo Blood-Repellent Performance of a Controllable Facile-Generated Superhydrophobic Surface. ACS APPLIED MATERIALS & INTERFACES 2021; 13:29021-29033. [PMID: 34102844 DOI: 10.1021/acsami.0c21058] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Fabrication of a blood-repellent surface is essential for implantable or interventional medical devices to avoid thrombosis which can induce several serious complications. In this research, a novel micropatterned surface was fabricated via a facile and cost-effective method, and then, the in vitro and in vivo blood-repellent performances of the controllable superhydrophobic surface were systematically evaluated. First, a facile and cost-effective strategy was proposed to fabricate a controllable superhydrophobic surface on a medically pure titanium substrate using an ultraviolet laser process, ultrasonic acid treatment, and chemical modification. Second, the superhydrophobicity, durability, stability, and corrosion resistance of the superhydrophobic surface were confirmed with advanced testing techniques, which display a high contact angle, low adhesion to water and blood, and excellent resistant element precipitation. Third, the platelet-rich plasma and whole blood were applied to evaluate the hemocompatibility of the superhydrophobic surface by means of an in vitro experiment, and no blood cell activation or aggregation was observed on the superhydrophobic surface. Finally, hollow tubes with an inner superhydrophobic surface were implanted into the left carotid artery of rabbits for 2 weeks to verify the biocompatibility in vivo. The superhydrophobic surface could effectively eliminate blood cell adhesion and thrombosis. No obvious inflammation or inordinate proliferation was found by histological analysis. This research provides a facile and cost-effective strategy to prepare a blood-repellent surface, which may have promising applications in implanted biomedical devices.
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Affiliation(s)
- Jing Zhang
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, P. R. China
- Key National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, P. R. China
| | - Guiling Li
- School of Medicine, Tsinghua University, Beijing 100084, P. R. China
| | - Donghai Li
- Advanced Medical Research Institute, Shandong University, Jinan 250012, P. R. China
| | - Xinrui Zhang
- Department of Plastic and Reconstructive Surgery, College of Medicine, Seoul National University, Seoul 03080, Republic of Korea
| | - Quhao Li
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, P. R. China
- Key National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, P. R. China
| | - Zehui Liu
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, P. R. China
- Key National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, P. R. China
| | - Yujie Fang
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, P. R. China
- Key National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, P. R. China
| | - Song Zhang
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, P. R. China
- Key National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, P. R. China
| | - Jia Man
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, P. R. China
- Key National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, P. R. China
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6
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Blood repellent superhydrophobic surfaces constructed from nanoparticle-free and biocompatible materials. Colloids Surf B Biointerfaces 2021; 205:111864. [PMID: 34049000 DOI: 10.1016/j.colsurfb.2021.111864] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 05/08/2021] [Accepted: 05/18/2021] [Indexed: 02/06/2023]
Abstract
Durable and environment friendly superhydrophobic surfaces are needed for a set of important applications. Biomedical applications, in particular, impose stringent requirements on the biocompatibility of the materials used in the fabrication of superhydrophobic surfaces. In this study, we demonstrate the fabrication of mechanically durable superhydrophobic surfaces via an in-situ structuring strategy starting from natural carnauba wax and biocompatible polydimethylsiloxane (PDMS) materials. The transfer of the structure of the paper to a free-standing PDMS film provided the microscale structure. On top of this structured surface, the wax was spray-coated, initially resulting in a relatively homogeneous film with limited liquid repellence. The key in achieving superhydrophobicity was rubbing the surface for in-situ generation of a finely textured wax coating with a water contact angle of 169° and a sliding angle of 3°. The hierarchically structured surface exhibits mechanical robustness as demonstrated with water impact and linear abrasion tests. We finally demonstrate repellence of the surfaces against a range of blood products including platelet suspension, erythrocyte suspension, fresh plasma, and whole blood.
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Maiti S, Shaw S, Shit GC. Fractional order model of thermo-solutal and magnetic nanoparticles transport for drug delivery applications. Colloids Surf B Biointerfaces 2021; 203:111754. [PMID: 33882410 DOI: 10.1016/j.colsurfb.2021.111754] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/29/2021] [Accepted: 04/04/2021] [Indexed: 02/07/2023]
Abstract
We examine the capturing efficiency of magnetic nanoparticles bound with drug molecules infused into the blood stream and monitored them by the application of an external magnetic field. We analyzed the motion of the nanoparticles along with the blood velocity through a porous medium vessel under the effect of periodic vibration. The thermo-solutal transport with Caputo-Fabrizio fractional-order derivative is modeled with non-Newtonian biviscosity fluid, Soret and Dufour effect, thermal radiation, and linear variation of the chemical reaction. The Laplace transform, finite Hankel transform and their inverse techniques are used to find analytical solutions. The study shows that both the velocity of blood and nano-particles increase with the increase of particle mass and the concentration parameter, while the opposite behaviour is observed with increasing the fractional parameter, magnetic field effect, and thermal radiation. The heat and mass transfer rates at the wall are enhanced with an increase in the Peclet number and the metabolic heat source. Thermal radiation effect signifies the higher rate of heat transfer at the vessel wall. The study bears potential applications in drug delivery with magnetic nanoparticles at the targeted region.
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Affiliation(s)
- Subrata Maiti
- Department of Mathematics, Jadavpur University, Kolkata 700032, India
| | - Sachin Shaw
- Department of Mathematics and Statistical Sciences, Botswana International University of Science and Technology, Private Bag 16, Palapye, Botswana
| | - G C Shit
- Department of Mathematics, Jadavpur University, Kolkata 700032, India.
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Fractional order model for thermochemical flow of blood with Dufour and Soret effects under magnetic and vibration environment. Colloids Surf B Biointerfaces 2020; 197:111395. [PMID: 33045544 DOI: 10.1016/j.colsurfb.2020.111395] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 09/20/2020] [Accepted: 09/30/2020] [Indexed: 01/25/2023]
Abstract
We examine the effect of the Caputo-Fabrizio derivative of fractional-order model on the flow of blood in a porous tube having thermochemical properties under the magnetic and vibration mode. Blood is considered as the biviscosity non-Newtonian fluid having thermal radiation and chemical reaction properties to observe its impact on energy flux and mass flux gradients. We provided analytical solution via the Laplace, finite Hankel transform, and the corresponding inverse techniques. The study shows that blood velocity and temperature both decrease in ascending values of the fractional-order parameter as memory effect. The permeability of blood flow medium resists to drive the fluid fast. The chemical reaction causes an increase in wall shear stress. Dufour effect influences to rise in the Nusselt number. Thus the study may help to explore further information about the fractional-order model, adsorption of nutrients and their strong correlation with the surface chemistry and applied them in pathology.
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Li Z, Milionis A, Zheng Y, Yee M, Codispoti L, Tan F, Poulikakos D, Yap CH. Superhydrophobic hemostatic nanofiber composites for fast clotting and minimal adhesion. Nat Commun 2019; 10:5562. [PMID: 31804481 PMCID: PMC6895059 DOI: 10.1038/s41467-019-13512-8] [Citation(s) in RCA: 140] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 11/11/2019] [Indexed: 11/17/2022] Open
Abstract
Hemostatic materials are of great importance in medicine. However, their successful implementation is still challenging as it depends on two, often counteracting, attributes; achieving blood coagulation rapidly, before significant blood loss, and enabling subsequent facile wound-dressing removal, without clot tears and secondary bleeding. Here we illustrate an approach for achieving hemostasis, rationally targeting both attributes, via a superhydrophobic surface with immobilized carbon nanofibers (CNFs). We find that CNFs promote quick fibrin growth and cause rapid clotting, and due to their superhydrophobic nature they severely limit blood wetting to prevent blood loss and drastically reduce bacteria attachment. Furthermore, minimal contact between the clot and the superhydrophobic CNF surface yields an unforced clot detachment after clot shrinkage. All these important attributes are verified in vitro and in vivo with rat experiments. Our work thereby demonstrates that this strategy for designing hemostatic patch materials has great potential.
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Affiliation(s)
- Zhe Li
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-Sen University, Guangzhou, 510006, China
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Athanasios Milionis
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, 8092, Zurich, Switzerland
| | - Yu Zheng
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Marcus Yee
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Lukas Codispoti
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, 8092, Zurich, Switzerland
| | - Freddie Tan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Dimos Poulikakos
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, 8092, Zurich, Switzerland.
| | - Choon Hwai Yap
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore.
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Vijayan VM, Tucker BS, Baker PA, Vohra YK, Thomas V. Non-equilibrium hybrid organic plasma processing for superhydrophobic PTFE surface towards potential bio-interface applications. Colloids Surf B Biointerfaces 2019; 183:110463. [PMID: 31493629 DOI: 10.1016/j.colsurfb.2019.110463] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 08/02/2019] [Accepted: 08/26/2019] [Indexed: 01/02/2023]
Abstract
Superhydrophobic surfaces have gained increased attention due to the high water-repellency and self-cleaning capabilities of these surfaces. In the present study, we explored a novel hybrid method of fabricating superhydrophobic poly(tetrafluoroethylene) (PTFE) surfaces by combining the physical etching capability of oxygen plasma with the plasma-induced polymerization of a organic monomer methyl methacrylate (MMA). This novel hybrid combination of oxygen-MMA plasma has resulted in the generation of superhydrophobic PTFE surfaces with contact angle of 154°. We hypothesized that the generation of superhydrophobicity may be attributed to the generation of fluorinated poly(methyl methacrylate) (PMMA) moieties formed by the combined effects of physical etching causing de-fluorination of PTFE and the subsequent plasma polymerization of MMA. The plasma treated PTFE surfaces were then systematically characterized via XPS, FTIR, XRD, DSC and SEM analyses. The results have clearly shown a synergistic effect of the oxygen/MMA combination in comparison with either the oxygen plasma alone or MMA vapors alone. Furthermore, the reported new hybrid combination of Oxygen-MMA plasma has been demonstrated to achieve superhydrophobicity at lower power and short time scales than previously reported methods in the literature. Hence the reported novel hybrid strategy of fabricating superhydrophobic PTFE surfaces could have futuristic potential towards biointerface applications.
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Affiliation(s)
- Vineeth M Vijayan
- Center for Nanoscale Materials and Biointergration, College of Arts and Sciences, University of Alabama at Birmingham, 1300 University Blvd. CH 386 Birmingham, AL 35294, United States; Polymers & Healthcare Materials/ Devices, Department of Material Science and Engineering, University of Alabama at Birmingham, 1150 10th Avenue SouthBirmingham, AL 35294, United States
| | - Bernabe S Tucker
- Polymers & Healthcare Materials/ Devices, Department of Material Science and Engineering, University of Alabama at Birmingham, 1150 10th Avenue SouthBirmingham, AL 35294, United States
| | - Paul A Baker
- Center for Nanoscale Materials and Biointergration, College of Arts and Sciences, University of Alabama at Birmingham, 1300 University Blvd. CH 386 Birmingham, AL 35294, United States
| | - Yogesh K Vohra
- Center for Nanoscale Materials and Biointergration, College of Arts and Sciences, University of Alabama at Birmingham, 1300 University Blvd. CH 386 Birmingham, AL 35294, United States
| | - Vinoy Thomas
- Center for Nanoscale Materials and Biointergration, College of Arts and Sciences, University of Alabama at Birmingham, 1300 University Blvd. CH 386 Birmingham, AL 35294, United States; Polymers & Healthcare Materials/ Devices, Department of Material Science and Engineering, University of Alabama at Birmingham, 1150 10th Avenue SouthBirmingham, AL 35294, United States.
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11
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Khanmohammadi Chenab K, Sohrabi B, Rahmanzadeh A. Superhydrophobicity: advanced biological and biomedical applications. Biomater Sci 2019; 7:3110-3137. [DOI: 10.1039/c9bm00558g] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The biological and biomedical applications of superhydrophobic surface.
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Affiliation(s)
- Karim Khanmohammadi Chenab
- Department of Chemistry
- Surface Chemistry Research Laboratory
- Iran University of Science and Technology
- Tehran
- Iran
| | - Beheshteh Sohrabi
- Department of Chemistry
- Surface Chemistry Research Laboratory
- Iran University of Science and Technology
- Tehran
- Iran
| | - Atyeh Rahmanzadeh
- Department of Chemistry
- Surface Chemistry Research Laboratory
- Iran University of Science and Technology
- Tehran
- Iran
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