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Antinate Shilpa S, Kavitha Sri A, Jeen Robert RB, Subbulakshmi MS, Hikku GSO. A review focused on the superhydrophobic fabrics with functional properties. J Appl Polym Sci 2023. [DOI: 10.1002/app.53664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Sagayanathan Antinate Shilpa
- Medical Bionanotechnology, Faculty of Allied Health Sciences Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education Chennai India
| | - Annadurai Kavitha Sri
- Medical Bionanotechnology, Faculty of Allied Health Sciences Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education Chennai India
| | | | | | - Gnanadhas Sobhin Osannal Hikku
- Medical Bionanotechnology, Faculty of Allied Health Sciences Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education Chennai India
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2
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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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3
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Zhang Z, Ma B, Ye T, Gao W, Pei G, Luo J, Deng J, Yuan W. One-Step Fabrication of Flexible Bioinspired Superomniphobic Surfaces. ACS APPLIED MATERIALS & INTERFACES 2022; 14:39665-39672. [PMID: 35983670 DOI: 10.1021/acsami.2c12483] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Flexible superomniphobic doubly re-entrant (Dual-T) microstructures inspired by springtails have attracted growing attention due to their excellent liquid-repellent properties. However, the simple and practical manufacturing processes of the flexible Dual-T microstructures are urgently needed. Here, we proposed a one-step molding process coupled with the lithography technique to fabricate the elastomeric polydimethylsiloxane (PDMS) Dual-T microstructure surfaces with high uniformity. The angle between the downward overhang and the horizontal direction could reach 90° (vertical overhang). The flexible superomniphobic Dual-T microstructure surfaces, without fluorination treatment and physical treatments, could repel liquids with a surface tension lower than 20 mN m-1 in the Cassie-Baxter state. Owing to the excellent robustness of the one-step molding downward overhanging, the max breakthrough pressure of this surface could reach up to 164.3 Pa for ethanol droplets. Furthermore, the flexible superomniphobic Dual-T surface allowed impinging ethanol droplets to completely rebound at the Weber number up to 7.1 with an impact velocity of ∼0.32 m s-1. The Dual-T microstructure surface maintained excellent superomniphobicity even after surface oxygen plasma treatment and exhibited excellent structural robustness and recoverability to various large mechanical deformations.
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Affiliation(s)
- Zhonggang Zhang
- Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Xi'an 710072, China
| | - Binghe Ma
- Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Xi'an 710072, China
| | - Tao Ye
- Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Xi'an 710072, China
| | - Wei Gao
- Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Xi'an 710072, China
| | - Guangyao Pei
- Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Xi'an 710072, China
| | - Jian Luo
- Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Xi'an 710072, China
| | - Jinjun Deng
- Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Xi'an 710072, China
| | - Weizheng Yuan
- Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Xi'an 710072, China
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Sun L, Guo J, Chen H, Zhang D, Shang L, Zhang B, Zhao Y. Tailoring Materials with Specific Wettability in Biomedical Engineering. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2100126. [PMID: 34369090 PMCID: PMC8498887 DOI: 10.1002/advs.202100126] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 06/22/2021] [Indexed: 05/02/2023]
Abstract
As a fundamental feature of solid surfaces, wettability is playing an increasingly important role in our daily life. Benefitting from the inspiration of biological paradigms and the development in manufacturing technology, numerous wettability materials with elaborately designed surface topology and chemical compositions have been fabricated. Based on these advances, wettability materials have found broad technological implications in various fields ranging from academy, industry, agriculture to biomedical engineering. Among them, the practical applications of wettability materials in biomedical-related fields are receiving remarkable researches during the past decades because of the increasing attention to healthcare. In this review, the research progress of materials with specific wettability is discussed. After briefly introducing the underlying mechanisms, the fabrication strategies of artificial materials with specific wettability are described. The emphasis is put on the application progress of wettability biomaterials in biomedical engineering. The prospects for the future trend of wettability materials are also presented.
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Affiliation(s)
- Lingyu Sun
- Institute of Translational MedicineDepartment of RadiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210002China
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China
| | - Jiahui Guo
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China
| | - Hanxu Chen
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China
| | - Dagan Zhang
- Institute of Translational MedicineDepartment of RadiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210002China
| | - Luoran Shang
- Zhongshan‐Xuhui Hospitalthe Shanghai Key Laboratory of Medical EpigeneticsInstitutes of Biomedical SciencesFudan UniversityShanghai200032China
| | - Bing Zhang
- Institute of Translational MedicineDepartment of RadiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210002China
| | - Yuanjin Zhao
- Institute of Translational MedicineDepartment of RadiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210002China
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China
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5
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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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Manderson CA, McLiesh H, Tabor RF, Garnier G. Droplet-based blood group antibody screening with laser incubation. Analyst 2021; 146:2499-2505. [PMID: 33682869 DOI: 10.1039/d0an01993c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Detection of blood group antibodies is a crucial step for blood transfusion recipients and pregnant women to prevent potentially fatal haemolytic reactions. Due to the short, non-bridging structure of such antibodies (IgG), the indirect antiglobulin test (IAT) is required, complete with a thermal incubation phase. This incubation step, where the sample must be heated to 37 °C for several minutes, has hitherto prevented chip- and paper-diagnostics from performing a complete IAT and instead required the IAT to be performed away from the patient beside in a laboratory setting with specialist equipment - significantly delaying blood transfusions. With recent laser technology for immunohaematology, a single blood droplet can be heated. This study presents a simple diagnostic where a single 15 μL droplet sits on hydrophobic PTFE film and is heated by laser. The result of the test is then determined via placement of a paper strip where passive wicking and filtration of the sample separates positive from negative results. We demonstrate that this diagnostic can accurately and sensitively detect blood group antibodies, with results quickly read by eye without further specialist equipment or training, with potential to lead to a point-of-care antibody screen.
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Affiliation(s)
- Clare A Manderson
- BioPRIA, Department of Chemical Engineering, Monash University, Australia.
| | - Heather McLiesh
- BioPRIA, Department of Chemical Engineering, Monash University, Australia.
| | - Rico F Tabor
- School of Chemistry, Monash University, Australia
| | - Gil Garnier
- BioPRIA, Department of Chemical Engineering, Monash University, Australia.
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Hu S, Shi Z, Zheng R, Ye W, Gao X, Zhao W, Yang G. Superhydrophobic Liquid-Solid Contact Triboelectric Nanogenerator as a Droplet Sensor for Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2020; 12:40021-40030. [PMID: 32805893 DOI: 10.1021/acsami.0c10097] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Superhydrophobic surfaces repel water and other liquids such as tissue fluid, blood, urine, and pus, which can open up a new avenue for the development of biomedical devices and has led to promising advances across diverse fields, including plasma separator devices, blood-repellent sensors, vascular stents, and heart valves. Here, the fabrication of superhydrophobic liquid-solid contact triboelectric nanogenerators (TENGs) and their biomedical applications as droplet sensors are reported. Triboelectrification energy can be captured and released when droplets are colliding or slipping on the superhydrophobic layer. The developed superhydrophobic TENG possesses multiple advantages in terms of simple fabrication, bendability, self-cleaning, self-adhesiveness, high sensitivity, and repellency to not only water but also a variety of solutions, including blood with a contact angle of 158.6°. As a self-powered sensor, the developed prototypes of a drainage bottle droplet sensor and a smart intravenous injection monitor based on the superhydrophobic liquid-solid contact TENG can monitor the clinical drainage operation and intravenous infusion in real time, respectively. These prototypes suggest the potential merit of this superhydrophobic liquid-solid contact TENG in clinical application, paving the way for accurately monitoring clinical drainage operations and intravenous injection or blood transfusion in the future.
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Affiliation(s)
- Sanming Hu
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhijun Shi
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Ruizhu Zheng
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Weiliang Ye
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xing Gao
- Research Centre for Medical Robotics and Minimally Invasive Surgical Devices, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Weiwei Zhao
- School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Guang Yang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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Abstract
A major challenge in materials engineering is the development of new materials and methods and/or novel combination of existing ones, all fostering innovation. For that reason, this study aims at the synergy between low-pressure cold spray (LPCS) as a tool for coating deposition and sol-gel technique for fabrication of the feedstock powder. The complementarity of both methods is important for the examined topic. On one side, the LPCS being automized and quick mean provides the solid-state of feedstock material in nondestructive conditions and hence the hydrophobicity imparted on the sol-gel route is preserved. On the other side, the sol-gel synthesis enables the production of oxide materials with enhanced deformability due to amorphous form which supports the anchoring while LPCS spraying. In the paper, several aspects including optimal fluoroalkylsilane (FOTS) concentration or substrate roughness are examined initially for altering the superhydrophobicity of produced coatings. Further, it is shown that the appropriate optimization of feedstock powder, being submicron silica matrices covered with two-layer FOTS sheath, may facilitate the anchoring process, support roughening the substrate or cause enhancement the coating hydrophobicity. All the discussion is supported by the characteristics including surface morphology, wettability and thermal behaviour examined by electron microscopy, water contact angle measurements and thermal analysis (TGA/DSC), respectively. The coatings presented in the paper are characterized by an uneven thickness of up to a few silica particles, but final hydrophobicity is provided uniformly on the surface by the formation of multi-level roughness by a detachment of outer layer from the SiO2 particles. Thus, the presented approach constitutes a simple and fast solution for the fabrication of functionalized coatings using LPCS including industrial potential and fundamental research character.
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Kim H, Han H, Lee S, Woo J, Seo J, Lee T. Nonfluorinated Superomniphobic Surfaces through Shape-Tunable Mushroom-like Polymeric Micropillar Arrays. ACS APPLIED MATERIALS & INTERFACES 2019; 11:5484-5491. [PMID: 30576594 DOI: 10.1021/acsami.8b17181] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Superomniphobic surfaces showing extremely liquid-repellent properties have received a great amount of attention as they can be used in various industrial and biomedical applications. However, so far, the fabrication processes of these materials mostly have involved the coating of perfluorocarbons onto micro- and nanohierarchical structures of these surfaces, which inevitably causes environmental pollution, leading to health concerns. Herein, we developed a facile method to obtain flexible superomniphobic surfaces without perfluorocarbon coatings that have shape-tunable mushroom-like micropillars (MPs). Inspired by the unique structures on the skin of springtails, we fabricated mushroom-like structures with downward facing edges (i.e., a doubly re-entrant structure) on a surface. The flexible MP structures were fabricated using a conventional micromolding technique, and the shapes of the mushroom caps were made highly tunable via the deposition of a thin aluminum (Al) layer. Due to the compressive residual stress of the Al, the mushroom caps were observed to bend toward the polymer upon forming doubly re-entrant-MP structures. The obtained surface was found to repel most low-surface-tension liquids such as oils, alcohols, and even fluorinated solvents. The developed flexible superomniphobic surface showed liquid repellency even upon mechanical stretching and after surface energy modification. We envision that the developed superomniphobic surface with high flexibility and wetting resistance after surface energy modification will be used in a wide range of applications such as self-cleaning clothes and gloves.
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Affiliation(s)
- Hyunchul Kim
- School of Electrical and Electronic Engineering , Yonsei University , Seoul 03722 , Republic of Korea
| | - Heetak Han
- School of Electrical and Electronic Engineering , Yonsei University , Seoul 03722 , Republic of Korea
| | - Sanggeun Lee
- School of Electrical and Electronic Engineering , Yonsei University , Seoul 03722 , Republic of Korea
| | - Janghoon Woo
- School of Electrical and Electronic Engineering , Yonsei University , Seoul 03722 , Republic of Korea
| | - Jungmok Seo
- Center for Biomaterials, Biomedical Research Institute , Korea Institute of Science and Technology (KIST) , Seoul 02792 , Republic of Korea
| | - Taeyoon Lee
- School of Electrical and Electronic Engineering , Yonsei University , Seoul 03722 , Republic of Korea
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Milionis A, Krishnan KG, Loth E, Lawrence M. Dynamic wetting of human blood and plasma on various surfaces. Colloids Surf B Biointerfaces 2018; 166:218-223. [DOI: 10.1016/j.colsurfb.2018.03.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 02/24/2018] [Accepted: 03/19/2018] [Indexed: 12/23/2022]
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11
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Bartlet K, Movafaghi S, Dasi LP, Kota AK, Popat KC. Antibacterial activity on superhydrophobic titania nanotube arrays. Colloids Surf B Biointerfaces 2018; 166:179-186. [PMID: 29579729 DOI: 10.1016/j.colsurfb.2018.03.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 03/15/2018] [Accepted: 03/16/2018] [Indexed: 01/23/2023]
Abstract
Bacterial infections are a serious issue for many implanted medical devices. Infections occur when bacteria colonize the surface of an implant and form a biofilm, a barrier which protects the bacterial colony from antibiotic treatments. Further, the anti-bacterial treatments must also be tailored to the specific bacteria that is causing the infection. The inherent protection of bacteria in the biofilm, differences in bacteria species (gram-positive vs. gram-negative), and the rise of antibiotic-resistant strains of bacteria makes device-acquired infections difficult to treat. Recent research has focused on reducing biofilm formation on medical devices by modifying implant surfaces. Proposed methods have included antibacterial surface coatings, release of antibacterial drugs from surfaces, and materials which promote the adhesion of non-pathogenic bacteria. However, no approach has proven successful in repelling both gram-positive and gram-negative bacteria. In this study, we have evaluated the ability of superhydrophobic surfaces to reduce bacteria adhesion regardless of whether the bacteria are gram-positive or gram-negative. Although superhydrophobic surfaces did not repel bacteria completely, they had minimal bacteria attached after 24 h and more importantly no biofilm formation was observed.
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Affiliation(s)
- Kevin Bartlet
- Department of Mechanical Engineering, Colorado State University, Campus Delivery 1374, Fort Collins, CO 80523, USA
| | - Sanli Movafaghi
- Department of Mechanical Engineering, Colorado State University, Campus Delivery 1374, Fort Collins, CO 80523, USA
| | - Lakshmi Prasad Dasi
- Department of Biomedical Engineering, The Ohio State University, Dorothy Davis Heart and Lung Research Institute, Columbus, OH 43210, USA
| | - Arun K Kota
- Department of Mechanical Engineering, Colorado State University, Campus Delivery 1374, Fort Collins, CO 80523, USA; Department of Chemical Engineering, Colorado State University, Campus Delivery 1370, Fort Collins, CO 80523, USA; School of Biomedical Engineering, Colorado State University, Campus Delivery 1376, Fort Collins, CO 80523, USA
| | - Ketul C Popat
- Department of Mechanical Engineering, Colorado State University, Campus Delivery 1374, Fort Collins, CO 80523, USA; School of Biomedical Engineering, Colorado State University, Campus Delivery 1376, Fort Collins, CO 80523, USA.
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Falde EJ, Yohe ST, Colson YL, Grinstaff MW. Superhydrophobic materials for biomedical applications. Biomaterials 2016; 104:87-103. [PMID: 27449946 PMCID: PMC5136454 DOI: 10.1016/j.biomaterials.2016.06.050] [Citation(s) in RCA: 208] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Revised: 06/16/2016] [Accepted: 06/20/2016] [Indexed: 12/14/2022]
Abstract
Superhydrophobic surfaces are actively studied across a wide range of applications and industries, and are now finding increased use in the biomedical arena as substrates to control protein adsorption, cellular interaction, and bacterial growth, as well as platforms for drug delivery devices and for diagnostic tools. The commonality in the design of these materials is to create a stable or metastable air layer at the material surface, which lends itself to a number of unique properties. These activities are catalyzing the development of new materials, applications, and fabrication techniques, as well as collaborations across material science, chemistry, engineering, and medicine given the interdisciplinary nature of this work. The review begins with a discussion of superhydrophobicity, and then explores biomedical applications that are utilizing superhydrophobicity in depth including material selection characteristics, in vitro performance, and in vivo performance. General trends are offered for each application in addition to discussion of conflicting data in the literature, and the review concludes with the authors' future perspectives on the utility of superhydrophobic biomaterials for medical applications.
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Affiliation(s)
- Eric J Falde
- Departments of Biomedical Engineering, Chemistry and Medicine, Boston University, 590 Commonwealth Avenue, Boston, MA, 02215, USA
| | - Stefan T Yohe
- Departments of Biomedical Engineering, Chemistry and Medicine, Boston University, 590 Commonwealth Avenue, Boston, MA, 02215, USA
| | - Yolonda L Colson
- Division of Thoracic Surgery, Department of Surgery Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - Mark W Grinstaff
- Departments of Biomedical Engineering, Chemistry and Medicine, Boston University, 590 Commonwealth Avenue, Boston, MA, 02215, USA.
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13
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Falde EJ, Yohe ST, Grinstaff MW. Surface Tension Triggered Wetting and Point of Care Sensor Design. Adv Healthc Mater 2015; 4:1654-7. [PMID: 26097150 PMCID: PMC4790105 DOI: 10.1002/adhm.201500276] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 05/30/2015] [Indexed: 02/05/2023]
Abstract
Rapid, simple, and inexpensive point-of-care (POC) medical tests are of significant need around the world. The transition between nonwetting and wetted states is used to create instrument-free surface tension sensors for POC diagnosis, using a layered electrospun mesh with incorporated dye to change color upon wetting.
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Affiliation(s)
- Eric J. Falde
- Departments of Biomedical Engineering and Chemistry, 44 Cummington Ave, Boston University, Boston MA 02215
| | - Stefan T. Yohe
- Departments of Biomedical Engineering and Chemistry, 44 Cummington Ave, Boston University, Boston MA 02215
| | - Mark W. Grinstaff
- Departments of Biomedical Engineering and Chemistry, 44 Cummington Ave, Boston University, Boston MA 02215
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14
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Whispering gallery mode resonators for rapid label-free biosensing in small volume droplets. BIOSENSORS-BASEL 2015; 5:118-30. [PMID: 25806835 PMCID: PMC4384086 DOI: 10.3390/bios5010118] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 03/08/2015] [Accepted: 03/11/2015] [Indexed: 02/03/2023]
Abstract
Rapid biosensing requires fast mass transport of the analyte to the surface of the sensing element. To optimize analysis times, both mass transport in solution and the geometry and size of the sensing element need to be considered. Small dielectric spheres, tens of microns in diameter, can act as label-free biosensors using whispering gallery mode (WGM) resonances. WGM resonances are sensitive to the effective refractive index, which changes upon analyte binding to recognition sites on functionalized resonators. The spherical geometry and tens of microns diameter of these resonators provides an efficient target for sensing while their compact size enables detection in limited volumes. Here, we explore conditions leading to rapid analyte detection using WGM resonators as label-free sensors in 10 μL sample droplets. Droplet evaporation leads to potentially useful convective mixing, but also limits the time over which analysis can be completed. We show that active droplet mixing combined with initial binding rate measurements is required for accurate nanomolar protein quantification within the first minute following injection.
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15
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Lima AC, Mano JF. Micro/nano-structured superhydrophobic surfaces in the biomedical field: part II: applications overview. Nanomedicine (Lond) 2015; 10:271-97. [DOI: 10.2217/nnm.14.175] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The properties of surfaces define the acceptance and integration of biomaterials in vivo, as well as the material's efficiency when used at research or manufacturing levels. The presence of micro/nano-topographical structures and low surface energies could bring several advantages when highly repellent surfaces are employed in the biomedical field. Biomimetic superhydrophobic surfaces have been explored for diverse applications: as an intrinsic characteristic of biomaterials to be implanted; as materials that exhibit special interactions with biological entities; or to be used in ex vivo applications. This article aims to focus on the main motivations and requirements in the biomedical field that pushed for the utilization of superhydrophobic surfaces as suitable alternatives, as well as the great evolution of applications that have emerged in the last few years.
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Affiliation(s)
- Ana Catarina Lima
- 3B's Research Group – Biomaterials, Biodegradables & Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Ave Park, 4806-909 Taipas, Guimarães, Portugal
- ICVS/3B's – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - João F Mano
- 3B's Research Group – Biomaterials, Biodegradables & Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Ave Park, 4806-909 Taipas, Guimarães, Portugal
- ICVS/3B's – PT Government Associate Laboratory, Braga/Guimarães, Portugal
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16
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Bian P, Dai Y, Qian X, Chen W, Yu H, Li J, Shen J. A process of converting cellulosic fibers to a superhydrophobic fiber product by internal and surface applications of calcium carbonate in combination with bio-wax post-treatment. RSC Adv 2014. [DOI: 10.1039/c4ra08437c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
To convert cellulosic fibers to a superhydrophobic fiber product (i.e., cellulosic paper), the simple concept involving wet-end and surface applications of calcium carbonate in combination with bio-wax post-treatment was proposed and demonstrated.
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Affiliation(s)
- Peiwen Bian
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education
- Northeast Forestry University
- Harbin 150040, China
| | - Yangyang Dai
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education
- Northeast Forestry University
- Harbin 150040, China
| | - Xueren Qian
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education
- Northeast Forestry University
- Harbin 150040, China
| | - Wenshuai Chen
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education
- Northeast Forestry University
- Harbin 150040, China
| | - Haipeng Yu
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education
- Northeast Forestry University
- Harbin 150040, China
| | - Jinsong Li
- Mudanjiang Hengfeng Paper Co., Ltd
- Mudanjiang 157013, China
| | - Jing Shen
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education
- Northeast Forestry University
- Harbin 150040, China
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Li M, Then WL, Li L, Shen W. Paper-based device for rapid typing of secondary human blood groups. Anal Bioanal Chem 2013; 406:669-77. [DOI: 10.1007/s00216-013-7494-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 11/04/2013] [Accepted: 11/06/2013] [Indexed: 12/11/2022]
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