1
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Zhang C, Qi Y, Guo Y, Zhang S, Xiong G, Wang K, Zhang Z. Anti-marine biofouling adhesion performance and mechanism of PDMS fouling-release coating containing PS-PEG hydrogel. MARINE POLLUTION BULLETIN 2023; 194:115345. [PMID: 37531797 DOI: 10.1016/j.marpolbul.2023.115345] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 07/20/2023] [Accepted: 07/23/2023] [Indexed: 08/04/2023]
Abstract
Polystyrene microspheres compounded with polyethylene glycol-based hydrogel (PS-PEG)/polydimethylsiloxane (PDMS) coatings were prepared using the physical blending method. The chemical structure, surface and interface properties, interlayer adhesion, and tensile properties were tested in this paper. Furthermore, the antifouling performance was evaluated through bovine serum albumin fluorescent protein adsorption testing, marine bacteria adhesion testing, and benthic diatom adhesion testing. The results showed that the coating performance was best when 20 wt% PS-PEG hydrogel was added. Its surface energy was only 19.21 mJ/m2, the maximum breaking strength was 1.24 MPa, the maximum elongation rate was 675 %, the elastic modulus was 2.53 MPa, and the anti-stripping rate was 100 %. In addition, the coating with added 20 wt% PS-PEG hydrogel bacterial adherence rate was 5.36 % and 2.45 % after rinsing and washing, respectively, and the removal rate was 54.29 %. In the benthic diatom adhesion test, the chlorophyll concentration a-value was only 0.0017 mg/L after washing with added 20 wt% hydrogel, and the protein desorption rate was 84.19 % higher than PDMS in the fluorescent protein adsorption test. This coating has the 'low adhesion' and 'desorption' characteristics in the three growth stages of biofouling. Meanwhile, the low surface energy of the silicone is stable, and the hydrogel also dynamically migrates to the surface to gradually form a hydration layer, both are synergistic. When 20 wt% PS-PEG hydrogel was added, the coating demonstrated excellent antifouling performance due to its high hydration layer, low surface energy, high elasticity, and high interlayer adhesion. This research is expected to contribute to the practical applications of hydrogel coatings in marine antifouling.
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Affiliation(s)
- Chen Zhang
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China.
| | - Yuhong Qi
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China.
| | - Yarui Guo
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China.
| | - Shukun Zhang
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China.
| | - Gang Xiong
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China.
| | - Kaixuan Wang
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China.
| | - Zhanping Zhang
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China.
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2
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Caracciolo PC, Abraham GA, Battaglia ES, Bongiovanni Abel S. Recent Progress and Trends in the Development of Electrospun and 3D Printed Polymeric-Based Materials to Overcome Antimicrobial Resistance (AMR). Pharmaceutics 2023; 15:1964. [PMID: 37514150 PMCID: PMC10385409 DOI: 10.3390/pharmaceutics15071964] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Antimicrobial resistance (AMR) developed by microorganisms is considered one of the most critical public health issues worldwide. This problem is affecting the lives of millions of people and needs to be addressed promptly. Mainly, antibiotics are the substances that contribute to AMR in various strains of bacteria and other microorganisms, leading to infectious diseases that cannot be effectively treated. To avoid the use of antibiotics and similar drugs, several approaches have gained attention in the fields of materials science and engineering as well as pharmaceutics over the past five years. Our focus lies on the design and manufacture of polymeric-based materials capable of incorporating antimicrobial agents excluding the aforementioned substances. In this sense, two of the emerging techniques for materials fabrication, namely, electrospinning and 3D printing, have gained significant attraction. In this article, we provide a summary of the most important findings that contribute to the development of antimicrobial systems using these technologies to incorporate various types of nanomaterials, organic molecules, or natural compounds with the required property. Furthermore, we discuss and consider the challenges that lie ahead in this research field for the coming years.
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Affiliation(s)
- Pablo C Caracciolo
- Biomedical Polymers Division, Research Institute for Materials Science and Technology (INTEMA), National University of Mar del Plata (UNMdP), National Scientific and Technical Research Council (CONICET), Av. Colón 10850, Mar del Plata 7600, Argentina
| | - Gustavo A Abraham
- Biomedical Polymers Division, Research Institute for Materials Science and Technology (INTEMA), National University of Mar del Plata (UNMdP), National Scientific and Technical Research Council (CONICET), Av. Colón 10850, Mar del Plata 7600, Argentina
| | - Ernesto S Battaglia
- Biomedical Polymers Division, Research Institute for Materials Science and Technology (INTEMA), National University of Mar del Plata (UNMdP), National Scientific and Technical Research Council (CONICET), Av. Colón 10850, Mar del Plata 7600, Argentina
| | - Silvestre Bongiovanni Abel
- Biomedical Polymers Division, Research Institute for Materials Science and Technology (INTEMA), National University of Mar del Plata (UNMdP), National Scientific and Technical Research Council (CONICET), Av. Colón 10850, Mar del Plata 7600, Argentina
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3
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Maloney SE, Grayton QE, Wai C, Uriyanghai U, Sidhu J, Roy-Chaudhury P, Schoenfisch MH. Nitric Oxide-Releasing Hemodialysis Catheter Lock Solutions. ACS APPLIED MATERIALS & INTERFACES 2023; 15:28907-28921. [PMID: 37285144 DOI: 10.1021/acsami.3c02506] [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: 06/08/2023]
Abstract
In an attempt to address the significant morbidity, mortality, and economic cost associated with tunneled dialysis catheter (TDC) dysfunction, we report the development of nitric oxide-releasing dialysis catheter lock solutions. Catheter lock solutions with a range of NO payloads and release kinetics were prepared using low-molecular-weight N-diazeniumdiolate nitric oxide donors. Nitric oxide released through the catheter surface as a dissolved gas was maintained at therapeutically relevant levels for at least 72 h, supporting clinical translatability (interdialytic period). Slow, sustained NO release from the catheter surface prevented bacterial adhesion in vitro by 88.9 and 99.7% for Pseudomonas aeruginosa and Staphylococcus epidermidis, respectively, outperforming a burst NO-release profile. Furthermore, bacteria adhered to the catheter surface in vitro prior to lock solution use was reduced by 98.7 and 99.2% for P. aeruginosa and S. epidermidis, respectively, when using a slow releasing NO donor, demonstrating both preventative and treatment potential. The adhesion of proteins to the catheter surface, a process often preceding biofilm formation and thrombosis, was also lessened by 60-65% by sustained NO release. In vitro cytotoxicity of catheter extract solutions to mammalian cells was minimal, supporting the non-toxic nature of the NO-releasing lock solutions. The use of the NO-releasing lock solution in an in vivo TDC porcine model demonstrated decreased infection and thrombosis, enhanced catheter functionality, and improved outcome (i.e., likelihood of survival) as a result of catheter use.
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Affiliation(s)
- Sara E Maloney
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Quincy E Grayton
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Christine Wai
- UNC Kidney Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Unimunkh Uriyanghai
- UNC Kidney Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Jasleen Sidhu
- UNC Kidney Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Prabir Roy-Chaudhury
- UNC Kidney Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Mark H Schoenfisch
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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4
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Rangel A, Lam M, Hocini A, Humblot V, Ameyama K, Migonney V, Dirras G, Falentin-Daudre C. Bioactivation of New Harmonic Titanium Alloy to Improve and Control Cellular Response and differentiation. Ing Rech Biomed 2023. [DOI: 10.1016/j.irbm.2023.100771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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5
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Foroushani FT, Dzobo K, Khumalo NP, Mora VZ, de Mezerville R, Bayat A. Advances in surface modifications of the silicone breast implant and impact on its biocompatibility and biointegration. Biomater Res 2022; 26:80. [PMID: 36517896 PMCID: PMC9749192 DOI: 10.1186/s40824-022-00314-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/31/2022] [Indexed: 12/15/2022] Open
Abstract
Silicone breast implants are commonly used for cosmetic and oncologic surgical indications owing to their inertness and being nontoxic. However, complications including capsular contracture and anaplastic large cell lymphoma have been associated with certain breast implant surfaces over time. Novel implant surfaces and modifications of existing ones can directly impact cell-surface interactions and enhance biocompatibility and integration. The extent of foreign body response induced by breast implants influence implant success and integration into the body. This review highlights recent advances in breast implant surface technologies including modifications of implant surface topography and chemistry and effects on protein adsorption, and cell adhesion. A comprehensive online literature search was performed for relevant articles using the following keywords silicone breast implants, foreign body response, cell adhesion, protein adsorption, and cell-surface interaction. Properties of silicone breast implants impacting cell-material interactions including surface roughness, wettability, and stiffness, are discussed. Recent studies highlighting both silicone implant surface activation strategies and modifications to enhance biocompatibility in order to prevent capsular contracture formation and development of anaplastic large cell lymphoma are presented. Overall, breast implant surface modifications are being extensively investigated in order to improve implant biocompatibility to cater for increased demand for both cosmetic and oncologic surgeries.
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Affiliation(s)
- Fatemeh Tavakoli Foroushani
- Wound and Keloid Scarring Research Unit, Hair and Skin Research Laboratory, Division of Dermatology, Department of Medicine, The South African Medical Research Council, University of Cape Town, Cape Town, South Africa
| | - Kevin Dzobo
- Wound and Keloid Scarring Research Unit, Hair and Skin Research Laboratory, Division of Dermatology, Department of Medicine, The South African Medical Research Council, University of Cape Town, Cape Town, South Africa
| | - Nonhlanhla P Khumalo
- Wound and Keloid Scarring Research Unit, Hair and Skin Research Laboratory, Division of Dermatology, Department of Medicine, The South African Medical Research Council, University of Cape Town, Cape Town, South Africa
| | | | | | - Ardeshir Bayat
- Wound and Keloid Scarring Research Unit, Hair and Skin Research Laboratory, Division of Dermatology, Department of Medicine, The South African Medical Research Council, University of Cape Town, Cape Town, South Africa.
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6
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Chiu CY, Lin HT, Yen TJ, Chang Y. Self-Assembly Anchored Cationic Copolymer Interfaces for Applying the Control of Counterion-Induced Bacteria Killing/Release Procedure. Macromol Biosci 2022; 22:e2200207. [PMID: 35875978 DOI: 10.1002/mabi.202200207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/30/2022] [Indexed: 12/25/2022]
Abstract
In recent years, daily hygiene and disease control issues have received increasing attention, especially the raging epidemics caused by the spread of deadly viruses. The construction of the interface of new polymer materials is focused on, which can provide a cyclic operation process for the killing and releasing of bacteria, and perform repeated regeneration, which is of great significance for the development of advanced medical biomaterials. In order to explore the basic physical phenomena of bacterial attachment and detachment on the polymer material interface by different amine groups, this study plans to synthesize four different butyl methacrylate (BMA)-based cationic copolymers with primary, ternary, and quaternary amine groups, and compare their effects on bactericidal efficiency. Since BMA can generate strong hydrophobic interactions with the benzene ring structure, this study used a polystyrene substrate to realize a self-assembled cationic copolymer interface for controlling the counterion-induced bacterial killing/release process. Furthermore, negatively charged ions are introduced to induce changes in the hydration capability of water molecules and control the subsequent bacterial detachment function. In this study, possible directions to answer and clarify the above concepts are proposed, and there is a basic reference principle that can lead to research work in macromolecular bioscience fields.
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Affiliation(s)
- Chieh-Yang Chiu
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu City, 300044, Taiwan (R.O.C.)
| | - Hao-Tung Lin
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University, Zhongli Dist., Taoyuan City, 320314, Taiwan (R.O.C.)
| | - Ta-Jen Yen
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu City, 300044, Taiwan (R.O.C.)
| | - Yung Chang
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University, Zhongli Dist., Taoyuan City, 320314, Taiwan (R.O.C.)
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7
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Zhou L, Zhao C, Yang W. Durable and covalently attached antibacterial coating based on post-crosslinked maleic anhydride copolymer with long-lasting performance. Colloids Surf B Biointerfaces 2022. [DOI: 10.1016/j.colsurfb.2022.112710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Cao H, Qiao S, Qin H, Jandt KD. Antibacterial Designs for Implantable Medical Devices: Evolutions and Challenges. J Funct Biomater 2022; 13:jfb13030086. [PMID: 35893454 PMCID: PMC9326756 DOI: 10.3390/jfb13030086] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/12/2022] [Accepted: 06/17/2022] [Indexed: 11/25/2022] Open
Abstract
The uses of implantable medical devices are safer and more common since sterilization methods and techniques were established a century ago; however, device-associated infections (DAIs) are still frequent and becoming a leading complication as the number of medical device implantations keeps increasing. This urges the world to develop instructive prevention and treatment strategies for DAIs, boosting the studies on the design of antibacterial surfaces. Every year, studies associated with DAIs yield thousands of publications, which here are categorized into four groups, i.e., antibacterial surfaces with long-term efficacy, cell-selective capability, tailored responsiveness, and immune-instructive actions. These innovations are promising in advancing the solution to DAIs; whereas most of these are normally quite preliminary “proof of concept” studies lacking exact clinical scopes. To help identify the flaws of our current antibacterial designs, clinical features of DAIs are highlighted. These include unpredictable onset, site-specific incidence, and possibly involving multiple and resistant pathogenic strains. The key point we delivered is antibacterial designs should meet the specific requirements of the primary functions defined by the “intended use” of an implantable medical device. This review intends to help comprehend the complex relationship between the device, pathogens, and the host, and figure out future directions for improving the quality of antibacterial designs and promoting clinical translations.
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Affiliation(s)
- Huiliang Cao
- Interfacial Electrochemistry and Biomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
- Lab of Low-Dimensional Materials Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science & Technology, Shanghai 200237, China
- Chair of Materials Science, Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, 07743 Jena, Germany
- Correspondence: (H.C.); (S.Q.); (H.Q.); (K.D.J.)
| | - Shichong Qiao
- Department of Implant Dentistry, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai 200011, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
- Correspondence: (H.C.); (S.Q.); (H.Q.); (K.D.J.)
| | - Hui Qin
- Department of Orthopaedics, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
- Correspondence: (H.C.); (S.Q.); (H.Q.); (K.D.J.)
| | - Klaus D. Jandt
- Chair of Materials Science, Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena School for Microbial Communication (JSMC), Neugasse 23, 07743 Jena, Germany
- Correspondence: (H.C.); (S.Q.); (H.Q.); (K.D.J.)
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9
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Polylactic acid film surface functionalized by zwitterionic poly[2-(methacryloyloxy)ethyl choline phosphate] with improved biocompatibility. Colloids Surf B Biointerfaces 2022; 214:112461. [PMID: 35305321 DOI: 10.1016/j.colsurfb.2022.112461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 03/08/2022] [Accepted: 03/10/2022] [Indexed: 11/20/2022]
Abstract
Polylactic acid (PLA) is a non-toxic, biodegradable biological material that is widely used in tissue engineering and regenerative medicine. PLA is easy to adsorb non-specific proteins and lacks cell adhesion after implantation. Choline phosphate (CP) is a novel zwitterion with a reverse structure of phosphate choline (PC) on the cell membrane that can form a specific "CP-PC" interaction to promote cell adhesion. In our previous work, modification of choline phosphate polymers (PMCP) onto the PLA film surface improved the hydrophilicity and degradation properties. In this study, we further investigated the biocompatibility of PLA-PMCP films from protein adsorption, cell adhesion and proliferation, bacterial adhesion, blood compatibility, and inflammation in vivo. The PLA-PMCP surface can resist protein adsorption and bacterial adhesion due to the anti-fouling properties of the zwitterion PMCP. Meanwhile, the PLA-PMCP surface promotes the adhesion and proliferation of BMSCs due to the specific "CP-PC" effect. In addition, the PLA-PMCP film has good blood compatibility as well as the PLA film. During in vivo experiments, biocompatibility was improved and the inflammatory response and immune rejection of PLA-PMCP films were reduced compared to those of the original PLA film. Therefore, the PMCP-modified PLA film resists protein adsorption and bacterial adhesion, promotes cell adhesion and proliferation, and has good hemocompatibility and histocompatibility. This brings a significant potential for application in the fields of tissue engineering and regenerative medicine.
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10
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Blood compatibility of widely used central venous catheters; an experimental study. Sci Rep 2022; 12:8600. [PMID: 35597879 PMCID: PMC9124179 DOI: 10.1038/s41598-022-12564-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 05/12/2022] [Indexed: 12/16/2022] Open
Abstract
An inserted central venous catheter (CVC) is considered foreign material by the inert host defence systems and induce inflammation and thrombus formation. The objective of this study was to evaluate blood compatibility of six commonly used CVCs. Three coated and three uncoated CVC materials were tested in a modified Chandler loop model. Each catheter material circulated in blood from ten different healthy volunteers for 1 h. Blood cell counts and measurements of the inert host defence systems were performed on blood samples from the loop. All the tested catheters demonstrated impact on blood cells, contact coagulation, the complement system, or inflammatory markers, although the impact varied significantly. Of the catheters we evaluated, the most unfavourable blood compatibility profile was found for the polyurethane CVC coated with chlorohexidine and silver sulfadiazine. The greatest variation in blood compatibility between test runs was noted for the silicone dialysis catheter. Poor blood compatibility should be taken seriously but given the experimental design of the current study the clinical significance remains to be evaluated.
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11
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Overview of antimicrobial polyurethane-based nanocomposite materials and associated signalling pathways. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111087] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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12
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Liu Z, Pan W, Wang K, Matia Y, Xu A, Barreiros JA, Darkes-Burkey C, Giannelis EP, Mengüç Y, Shepherd RF, Wallin TJ. Acoustophoretic Liquefaction for 3D Printing Ultrahigh-Viscosity Nanoparticle Suspensions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2106183. [PMID: 34601774 DOI: 10.1002/adma.202106183] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/24/2021] [Indexed: 06/13/2023]
Abstract
An acoustic liquefaction approach to enhance the flow of yield stress fluids during Digital Light Processing (DLP)-based 3D printing is reported. This enhanced flow enables processing of ultrahigh-viscosity resins (μapp > 3700 Pa s at shear rates γ ˙ = 0.01 s-1 ) based on silica particles in a silicone photopolymer. Numerical simulations of the acousto-mechanical coupling in the DLP resin feed system at different agitation frequencies predict local resin flow velocities exceeding 100 mm s-1 at acoustic transduction frequencies of 110 s-1 . Under these conditions, highly loaded particle suspensions (weight fractions, ϕ = 0.23) can be printed successfully in complex geometries. Such mechanically reinforced composites possess a tensile toughness 2000% greater than the neat photopolymer. Beyond an increase in processible viscosities, acoustophoretic liquefaction DLP (AL-DLP) creates a transient reduction in apparent viscosity that promotes resin recirculation and decreases viscous adhesion. As a result, acoustophoretic liquefaction Digital Light Processing (AL-DLP) improves the printed feature resolution by more than 25%, increases printable object sizes by over 50 times, and can build parts >3 × faster when compared to conventional methodologies.
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Affiliation(s)
- Zheng Liu
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Wenyang Pan
- Facebook Reality Labs Research, Redmond, WA, 98052, USA
| | - Kaiyang Wang
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Yoav Matia
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Artemis Xu
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Jose A Barreiros
- Department of Systems Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Cameron Darkes-Burkey
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Emmanuel P Giannelis
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Yiğit Mengüç
- Facebook Reality Labs Research, Redmond, WA, 98052, USA
- Collaborative Robotics and Intelligent Systems (CoRIS) Institute, Oregon State University, Corvallis, OR, 97331, USA
| | - Robert F Shepherd
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, 14853, USA
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
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Dhingra S, Gaur V, Saini V, Rana K, Bhattacharyya J, Loho T, Ray S, Bajaj A, Saha S. Cytocompatible, Soft and Thick Brush Modified Scaffolds with Prolonged Antibacterial Effect to Mitigate Wound Infections. Biomater Sci 2022; 10:3856-3877. [DOI: 10.1039/d2bm00245k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biomedical device or implant associated infections caused by pathogenic bacteria are one of the major leading clinical issues, prevention and/or treatment of which still remain a challenging task. Infection resistant...
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14
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Lou Y, Schapman D, Mercier D, Alexandre S, Dé E, Brunel JM, Kébir N, Thébault P. Modification of poly(dimethyl siloxane) surfaces with an antibacterial claramine-derivative through click-chemistry grafting. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2021.105102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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15
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Zhou S, Qian S, Wang W, Ni Z, Yu J. Fabrication of a Hydrophilic Low-Friction Poly(hydroxyethyl methacrylate) Coating on Silicon Rubber. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:13493-13500. [PMID: 34724617 DOI: 10.1021/acs.langmuir.1c02254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Silicon rubber has been widely used in the biomedical field due to its excellent mechanical properties and physiological inertia. However, the hydrophobic properties of silicon rubber surfaces limit their further application. Therefore, constructing a silicon rubber coating with hydrophilic and low-friction surface properties would be highly significant. Existing methods to achieve such coatings, including grafting polymer brushes and the deposition of hydrophilic materials, suffer from several deficiencies such as complicated coating processes and insufficient coating firmness. In this paper, we report a hydrophilic polymer poly(hydroxyethyl methacrylate) (PHEMA) coating that can easily coat the surface of silicon rubber to provide low-friction performance. Sample silicon rubber was treated with benzophenone and hydroxyethyl methacrylate monomer solution in turn. The as-prepared coating was characterized by infrared spectroscopy, X-ray photoelectron spectroscopy, white light interference, and MFT-5000 wear test. The results indicated that the PHEMA coating had excellent hydrophilic properties (with a low contact angle of 9.39°) compared to uncoated silicon rubber. As the concentration of glycerol in the monomer solution was increased, the thickness and surface roughness of the as-prepared coating gradually decreased. The coating was firmly adsorbed on the substrate, and it had a zero-class bonding strength. In addition, the as-prepared coating demonstrated good friction-reduced properties, with the coefficient of friction being reduced by 98.0% compared with the uncoated silicon rubber in simulated blood. In summary, a hydrophilic and low-friction coating was successfully prepared using a simple method, and the results reported herein provide valuable insight into the surface design of similar soft materials.
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Affiliation(s)
- Shuaishuai Zhou
- School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Shanhua Qian
- School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wei Wang
- School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Zifeng Ni
- School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jinghu Yu
- School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
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16
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Shi XH, Zhou X, Lei ZY, Tian Y, Chen Y, Zhang YM, Mao TC, Fan DL, Zhou SW. Novel silicone rubber with carboxyl grafted polyhedral oligomeric silsesquioxane (POSS-COOH) as a potential scaffold for soft tissue filling. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1999951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Xiao-hua Shi
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
- Base for Drug Clinical Trial, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Xin Zhou
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Ze-yuan Lei
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Yuan Tian
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Yao Chen
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Yi-ming Zhang
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Tong-chun Mao
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Dong-li Fan
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Shi-wen Zhou
- Base for Drug Clinical Trial, Xinqiao Hospital, The Army Medical University, Chong Qing, China
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17
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Functionalization of Silicone Surface with Drugs and Polymers for Regulation of Capsular Contracture. Polymers (Basel) 2021; 13:polym13162731. [PMID: 34451270 PMCID: PMC8400777 DOI: 10.3390/polym13162731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/12/2021] [Accepted: 08/12/2021] [Indexed: 11/21/2022] Open
Abstract
Breast reconstruction is achieved using silicone implants, which are currently associated with major complications. Several strategies have been considered to overcome the existing limitations as well as to improve their performance. Recently, surface modification has proved to be an effective clinical approach to prevent bacterial adhesion, reduce capsular thickness, prevent foreign body reactions, and reduce other implant-associated problems. This review article summarizes the ongoing strategies for the surface modification of silicone implants in breast reconstruction applications. The article mostly discusses two broad categories of surface modification: drug-mediated and polymer-based. Different kinds of drugs have been applied with silicone that are associated with breast reconstruction. Initially, this article discusses studies related to drugs immobilized on silicone implants, focusing on drug-loading methods and their effects on capsule contracture. Moreover, the pharmacological action of drugs on fibroblast cells is considered in this section. Next, the polymeric modification of the silicone surface is introduced, and we discuss its role in reducing capsule thickness at the cellular and biological levels. The polymeric modification techniques, their chemistry, and their physical properties are described in detail. Notably, polymer activities on macrophages and inflammation are also briefly discussed. Each of the reviewed articles is summarized, highlighting their discussion of capsular thickness, foreign body reactions, and bacterial attachment. The aim of this review is to provide the main points of some research articles regarding the surface modification of silicon, which can lead to a decrease in capsular thickness and provides better patient compliance.
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18
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Zare M, Ghomi ER, Venkatraman PD, Ramakrishna S. Silicone‐based biomaterials for biomedical applications: Antimicrobial strategies and 3D printing technologies. J Appl Polym Sci 2021. [DOI: 10.1002/app.50969] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mina Zare
- Center for Nanotechnology and Sustainability, Department of Mechanical Engineering National University of Singapore Singapore Singapore
| | - Erfan Rezvani Ghomi
- Center for Nanotechnology and Sustainability, Department of Mechanical Engineering National University of Singapore Singapore Singapore
| | | | - Seeram Ramakrishna
- Center for Nanotechnology and Sustainability, Department of Mechanical Engineering National University of Singapore Singapore Singapore
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19
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Gharibi R, Agarwal S. Favorable Antibacterial, Antibiofilm, Antiadhesion to Cells, and Biocompatible Polyurethane by Facile Surface Functionalization. ACS APPLIED BIO MATERIALS 2021; 4:4629-4640. [PMID: 35006800 DOI: 10.1021/acsabm.1c00356] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
It is of paramount importance to prohibit biofilm formation in a wide range of implant devices, such as thermoplastic polyurethane (PU)-based catheters. It is possible only by means of a multifunctional material that provides fast and effective antibacterial activity, proper biocompatibility, and low bacterial and cell adhesion. In this paper, a facile chemistry approach has been developed to modify biomedical-grade PU with PU species, containing reactive uretdione functional groups for functionalization with the contact-type polyguanidine bactericidal agent and oxidized dextran as an antifouling polymer without sacrificing the thermal and mechanical properties. The resulting PU possesses broad-spectrum contact-active antibacterial activity against Gram-negative and Gram-positive bacteria with fast kinetics. The excellent antifouling capacity was confirmed by low nonspecific protein adsorption and reduced adhesion of fibroblast cells by ≥ 90%. In addition to antiadhesive and antibiofilm properties, high cell viability (>90%) and low hemolysis rate (HR < 1%) verified favorable cytocompatibility. Hence, the strategy followed to functionalize PUs in this paper might be considered to modify PU-based biomedical devices.
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Affiliation(s)
- Reza Gharibi
- Macoliromolecular Chemistry II, Bavarian Polymer Institute, University of Bayreuth, Universitätsstrasse 30, Bayreuth 95440, Germany.,Department of Organic Chemistry and Polymer, Faculty of Chemistry, Kharazmi University, Tehran 15719-14911, Iran
| | - Seema Agarwal
- Macoliromolecular Chemistry II, Bavarian Polymer Institute, University of Bayreuth, Universitätsstrasse 30, Bayreuth 95440, Germany
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20
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Velazco-Medel MA, Camacho-Cruz LA, Magaña H, Palomino K, Bucio E. Simultaneous Grafting Polymerization of Acrylic Acid and Silver Aggregates Formation by Direct Reduction Using γ Radiation onto Silicone Surface and Their Antimicrobial Activity and Biocompatibility. Molecules 2021; 26:2859. [PMID: 34065879 PMCID: PMC8151000 DOI: 10.3390/molecules26102859] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/07/2021] [Accepted: 05/09/2021] [Indexed: 01/05/2023] Open
Abstract
The modification of medical devices is an area that has attracted a lot of attention in recent years; particularly, those developments which search to modify existing devices to render them antimicrobial. Most of these modifications involve at least two stages (modification of the base material with a polymer graft and immobilization of an antimicrobial agent) which are both time-consuming and complicate synthetic procedures; therefore, as an improvement, this project sought to produce antimicrobial silicone (PDMS) in a single step. Using gamma radiation as both an energy source for polymerization initiation and as a source of reducing agents in solution, PDMS was simultaneously grafted with acrylic acid and ethylene glycol dimethacrylate (AAc:EGDMA) while producing antimicrobial silver nanoparticles (AgNPs) onto the surface of the material. To obtain reproducible materials, experimental variables such as the effect of the dose, the intensity of radiation, and the concentration of the silver salt were evaluated, finding the optimal reaction conditions to obtain materials with valuable properties. The characterization of the material was performed using electronic microscopy and spectroscopic techniques such as 13C-CPMAS-SS-NMR and FTIR. Finally, these materials demonstrated good antimicrobial activity against S. aureus while retaining good cell viabilities (above 90%) for fibroblasts BALB/3T3.
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Affiliation(s)
- Marlene A. Velazco-Medel
- Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad 7 Universitaria, Ciudad de México 04510, Mexico;
| | - Luis A. Camacho-Cruz
- Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad 7 Universitaria, Ciudad de México 04510, Mexico;
| | - Héctor Magaña
- Faculty of Chemical Sciences and Engineering, Autonomous University of Baja California, University Boulevard No. 14418, Otay Mesa, Tijuana 22390, Mexico; (H.M.); (K.P.)
| | - Kenia Palomino
- Faculty of Chemical Sciences and Engineering, Autonomous University of Baja California, University Boulevard No. 14418, Otay Mesa, Tijuana 22390, Mexico; (H.M.); (K.P.)
| | - Emilio Bucio
- Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad 7 Universitaria, Ciudad de México 04510, Mexico;
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21
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Banerjee SL, Saha P, Ganguly R, Bhattacharya K, Kalita U, Pich A, Singha NK. A dual thermoresponsive and antifouling zwitterionic microgel with pH triggered fluorescent “on-off” core. J Colloid Interface Sci 2021; 589:110-126. [DOI: 10.1016/j.jcis.2020.12.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 12/30/2022]
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22
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Suriboot J, Marmo AC, Ngo BKD, Nigam A, Ortiz-Acosta D, Tai BL, Grunlan MA. Amphiphilic, thixotropic additives for extrusion-based 3D printing of silica-reinforced silicone. SOFT MATTER 2021; 17:4133-4142. [PMID: 33735370 DOI: 10.1039/d1sm00288k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The ability to utilize extrusion-based, direct ink write (DIW) 3D printing to create silica-reinforced silicones with complex structures could expand their utility in industrial and biomedical applications. Sylgard 184, a common Pt-cure silicone, lacks the thixotropic behavior necessary for effective printing and its hydrophobicity renders cured structures susceptible to biofouling. Herein, we evaluated the efficacy of various PEO-silane amphiphiles (PEO-SAs) as thixotropic and surface modifying additives in Sylgard 184. Eight amphiphilic PEO-SAs of varying architecture (e.g. linear, star, and graft), crosslinkability, and PEO content were evaluated. Modified formulations were also prepared with additional amounts of silica filler, both hexamethyldisilazane (HMDS)-treated and dimethyldichlorosilane (DiMeDi)-treated types. Numerous PEO-SA modified silicone formulations demonstrated effective water-driven surface hydrophilicity that was generally diminished with the addition of HMDS-treated silica filler. While increased yield stress was observed for PEO-SA modified silicones with added HMDS-treated filler, none achieved the initial target for 3D printing (>1000 Pa). Only the formulations containing the DiMeDi-treated filler (17.3 wt%) were able to surpass this value. These formulations were then tested for their thixotropic properties and all surpassed the targets for recovered storage modulus (G') (>1000 Pa) and loss factor (<0.8). In particular, the triblock linear PEO-SA produced exceptionally high recovered G', low loss factor, and substantial water-driven restructuring to form a hydrophilic surface. Combined, these results demonstrate the potential of silicones modified with PEO-SA surface-modifying additives (SMAs) for extrusion-based, DIW 3D printing applications.
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Affiliation(s)
- Jakkrit Suriboot
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA.
| | - Alec C Marmo
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Bryan Khai D Ngo
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA.
| | - Aman Nigam
- Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843, USA
| | | | - Bruce L Tai
- Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Melissa A Grunlan
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA. and Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA and Department of Chemistry, Texas A&M University, College Station, TX 77843, USA
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23
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Lam M, Migonney V, Falentin-Daudre C. Review of silicone surface modification techniques and coatings for antibacterial/antimicrobial applications to improve breast implant surfaces. Acta Biomater 2021; 121:68-88. [PMID: 33212233 DOI: 10.1016/j.actbio.2020.11.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/12/2020] [Accepted: 11/12/2020] [Indexed: 12/19/2022]
Abstract
Silicone implants are widely used in the medical field for plastic or reconstructive surgeries for the purpose of soft tissue issues. However, as with any implanted object, healthcare-associated infections are not completely avoidable. The material suffers from a lack of biocompatibility and is often subject to bacterial/microbial infections characterized by biofilm growth. Numerous strategies have been developed to either prevent, reduce, or fight bacterial adhesion by providing an antibacterial property. The present review summarizes the diverse approaches to deal with bacterial infections on silicone surfaces along with the different methods to activate/oxidize the surface before any surface modifications. It includes antibacterial coatings with antibiotics or nanoparticles, covalent attachment of active bacterial molecules like peptides or polymers. Regarding silicone surfaces, the activation step is essential to render the surface reactive for any further modifications using energy sources (plasma, UV, ozone) or chemicals (acid solutions, sol-gel strategies, chemical vapor deposition). Meanwhile, corresponding work on breast silicone prosthesis is discussed. The latter is currently in the line of sight for causing severe capsular contractures. Specifically, to that end, besides chemical modifications, the antibacterial effect can also be achieved by physical surface modifications by adjusting the surface roughness and topography for instance.
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24
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Plasma-activated interfaces for biomedical engineering. Bioact Mater 2021; 6:2134-2143. [PMID: 33511312 PMCID: PMC7810626 DOI: 10.1016/j.bioactmat.2021.01.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 12/16/2020] [Accepted: 01/01/2021] [Indexed: 02/06/2023] Open
Abstract
As an important phenomenon to monitor disease development, cell signaling usually takes place at the interface between organisms/cells or between organisms/cells and abiotic materials. Therefore, finding a strategy to build the specific biomedical interfaces will help regulate information transmission and produce better therapeutic results to benefit patients. In the past decades, plasmas containing energetic and active species have been employed to construct various interfaces to meet biomedical demands such as bacteria inactivation, tissue regeneration, cancer therapy, and so on. Based on the potent functions of plasma modified surfaces, this mini-review is aimed to summarize the state-of-art plasma-activated interfaces and provide guidance to researchers to select the proper plasma and processing conditions to design and prepare interfaces with the optimal biological and related functions. After a brief introduction, plasma-activated interfaces are described and categorized according to different criteria including direct plasma-cells interfaces and indirect plasma-material-cells interfaces and recent research activities on the application of plasma-activated interfaces are described. The authors hope that this mini-review will spur interdisciplinary research efforts in this important area and expedite associated clinical applications. The Interfaces between organisms/cells and abiotic materials are crucial for cell signaling. Plasmas containing energetic and active species are potent tool to construct biomedical interfaces. The objective here is to summarize recent plasma-activated interfaces to spur interdisciplinary efforts for clinical applications.
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25
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Gao S, Su J, Wang W, Fu J, Wang H. Highly efficient and durable antibacterial cotton fabrics finished with zwitterionic polysulfobetaine by one-step eco-friendly strategy. CELLULOSE (LONDON, ENGLAND) 2021; 28:1139-1152. [PMID: 33191988 PMCID: PMC7653989 DOI: 10.1007/s10570-020-03542-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 10/15/2020] [Indexed: 05/15/2023]
Abstract
In this work, a novel formulation of polysulfobetaine, poly (sulfobetaine-acrylamide-allyl glycidyl ether) (PSPB-AM-AGE), was synthesized and grafted onto cotton. The synthesis of PSPB-AM-AGE and its grafting on the cotton fabrics were confirmed by FTIR, XPS and SEM. The PSPB-AM-AGE treated cotton fabrics exhibited a high level of antibacterial rate against both Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), which are 95.18% and 98.74%, separately, as well as a good laundry durability. The mechanical tests showed that the essential cotton properties can be largely preserved in the treatment process. Moreover, the hydrophilicity, air and water permeability of the cotton were improved after treated with PSPB-AM-AGE, indicating a better wearing comfort performance. The whiteness of the cotton fabrics did not decrease significantly. The safety evaluation demonstrated that PSPB-AM-AGE had no cytotoxicity. The developed antibacterial finishing introduced a new method to apply polysulfobetaine interfaced on cellulose, providing great potential for biomedical fabric application.
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Affiliation(s)
- Simeng Gao
- Jiangsu Engineering Technology Research Centre of Functional Textiles, Jiangnan University, Wuxi, China
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, China
| | - Jing Su
- Jiangsu Engineering Technology Research Centre of Functional Textiles, Jiangnan University, Wuxi, China
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, China
| | - Wencong Wang
- Jiangsu Engineering Technology Research Centre of Functional Textiles, Jiangnan University, Wuxi, China
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, China
| | - Jiajia Fu
- Jiangsu Engineering Technology Research Centre of Functional Textiles, Jiangnan University, Wuxi, China
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, China
| | - Hongbo Wang
- Jiangsu Engineering Technology Research Centre of Functional Textiles, Jiangnan University, Wuxi, China
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, China
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26
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Ding K, Wang Y, Liu S, Wang S, Mi J. Preparation of medical hydrophilic and antibacterial silicone rubber via surface modification. RSC Adv 2021; 11:39950-39957. [PMID: 35494122 PMCID: PMC9044540 DOI: 10.1039/d1ra06260c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/17/2021] [Indexed: 11/22/2022] Open
Abstract
Bacterial adhesion of medical indwelling devices shortens their service life and brings about infections in patients. The combination of hydrophilic and antibacterial modifications can not only kill the bacteria in contact with the surface, but also avoid the adhesion of dead bacteria. From this view, with a self-made quaternary ammonium salt and a zwitterion as the modifiers, a modified silicone rubber, SR-g-(DMAPS-co-QA), was prepared via random co-grafting. The static water angle test and antibacterial assays proved the enhancement of both the hydrophilicity and antibacterial activity. In addition, compared with the unmodified silicone rubber, after 7 days of co-cultivation in E. coli suspension, SR-g-(DMAPS-co-QA) demonstrated good resistance to biofilm formation. Furthermore, to simulate the real situation, its antibacterial effect in dynamic flow condition was measured, confirming that SR-g-(DMAPS-co-QA) still maintained good antibacterial performance after a 48 hour cyclic flow of E. coli bacterial suspension. Surface modification of silicone rubber to enhance hydrophilicity and antibacterial effect.![]()
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Affiliation(s)
- Kaidi Ding
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, No. 15 Beisanhuandong Road, Beijing, 100029, China
| | - Yue Wang
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, No. 15 Beisanhuandong Road, Beijing, 100029, China
| | - Shuaizhen Liu
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, No. 15 Beisanhuandong Road, Beijing, 100029, China
| | - Sen Wang
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, No. 15 Beisanhuandong Road, Beijing, 100029, China
| | - Jianguo Mi
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, No. 15 Beisanhuandong Road, Beijing, 100029, China
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, No. 15 Beisanhuandong Road, Beijing, 100029, China
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27
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Mousavi M, Ghaleh H, Jalili K, Abbasi F. Multi-layer PDMS films having antifouling property for biomedical applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 32:678-693. [PMID: 33250001 DOI: 10.1080/09205063.2020.1856300] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Poly(dimethylsiloxane) (PDMS) elastomer is now a well-known material for packaging implantable biomedical micro-devices owing to unique bulk properties such as biocompatibility, low toxicity, excellent rheological properties, good flexibility, and mechanical stability. Despite the desirable bulk characteristics, PDMS is generally regarded as a high-flux material for oxygen and water vapor to penetrate compared with other polymeric barrier materials, which is related to the defect-induced penetration through the packaging coating prepared by the traditional deposition techniques. Besides, its hydrophobic nature causes serious fouling problems and limits the practical application of PDMS-based devices. In this work, the performance of silicone thin films as a packaging layer was improved by the fabrication of the roller-casted multiple thin layers to minimize a defect-induced failure. To confer hydrophilicity and cell fouling resistance, high-density and well-defined poly(oligo(ethylene glycol) methacrylate) (POEGMA) brushes were tethered via the surface-initiated atom transfer radical polymerization (SI-ATRP) technique on the roller-casted multiple thin PDMS layers. The characteristics of fabricated substrates were determined by static water contact angle measurement, X-ray photoelectron spectroscopy, and attenuated total reflection-Fourier transform infrared spectroscopy. In vitro cell behavior of POEGMA-grafted PDMS substrates was evaluated to examine cell-fouling resistance.
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Affiliation(s)
- M Mousavi
- Institute of Polymeric Materials, Sahand University of Technology, Tabriz, Iran.,Faculty of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
| | - H Ghaleh
- Department of Polymer Science and Engineering, University of Bonab, Bonab, Iran
| | - K Jalili
- Institute of Polymeric Materials, Sahand University of Technology, Tabriz, Iran.,Faculty of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
| | - F Abbasi
- Institute of Polymeric Materials, Sahand University of Technology, Tabriz, Iran.,Faculty of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
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28
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Membrane Biofouling Control by Surface Modification of Quaternary Ammonium Compound Using Atom-Transfer Radical-Polymerization Method with Silica Nanoparticle as Interlayer. MEMBRANES 2020; 10:membranes10120417. [PMID: 33322470 PMCID: PMC7764448 DOI: 10.3390/membranes10120417] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/03/2020] [Accepted: 12/10/2020] [Indexed: 11/17/2022]
Abstract
A facile approach to fabricate antibiofouling membrane was developed by grafting quaternary ammonium compounds (QACs) onto polyvinylidene fluoride (PVDF) membrane via surface-initiated activators regenerated by electron transfer atom-transfer radical-polymerization (ARGET ATRP) method. During the modification process, a hydrophilic silica nanoparticle layer was also immobilized onto the membrane surface as an interlayer through silicification reaction for QAC grafting, which imparted the membrane with favorable surface properties (e.g., hydrophilic and negatively charged surface). The QAC-modified membrane (MQ) showed significantly improved hydrophilicity and permeability mainly due to the introduction of silica nanoparticles and exposure of hydrophilic quaternary ammonium groups instead of long alkyl chains. Furthermore, the coverage of QAC onto membrane surface enabled MQ membrane to have clear antibacterial effect, with an inhibition rate ~99.9% of Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive), respectively. According to the batch filtration test, MQ had better antibiofouling performance compared to the control membrane, which was ascribed to enhanced hydrophilicity and antibacterial activity. Furthermore, the MQ membrane also exhibited impressive stability of QAC upon suffering repeated fouling–cleaning tests. The modification protocols provide a new robust way to fabricate high-performance antibiofouling QAC-based membranes for wastewater treatment.
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Vakili H, Mohseni M, Makki H, Yahyaei H, Ghanbari H, González A, Irusta L. Microphase Arrangement of Smart Superhydrophilic Segmented Polyurethanes at Their Interface with Water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:13201-13209. [PMID: 33119316 DOI: 10.1021/acs.langmuir.0c01898] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Smart coatings have aroused a growing interest because of the performance of predefined surface functions upon reacting to external stimuli. Among them, responsive polymer coatings to water, which often benefit from the presence of a mobile hydrophilic material, are of great interest. Polyurethanes (PUs) are versatile materials with respect to the structure-property relationship. Therefore, the incorporation of hydrophilic segments in PUs is a rational way to produce water-sensitive smart coatings; however, having a considerable amount of hydrophilic material deteriorates the physical properties because of a large amount of water uptake. In this study, we have analyzed previously synthesized smart PUs, based on hydrophobic polycarbonate (PC) and hydrophilic polyethylene glycol (PEG) soft segments, in which only a limited amount of PEG is used. These coatings maintain, more or less, zero water contact angle, whereas the water uptake remains below 15 wt %. The combination of experimental analysis and coarse-grained molecular dynamics (CG MD) simulations reveals that PEG segments migrate to the coating/water interface and partially cover the surface, whereas the hydrophobic nature of the PC keeps the bulk of the coating intact when the coating is covered with water. Moreover, our CG MD simulations and experimental analysis suggest a reversible phase arrangement under wet/dry cycles on molecular and macroscopic scales.
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Affiliation(s)
- Helma Vakili
- Department of Polymer and Color Engineering, Amirkabir University of Technology, 350, Hafez Avenue, Tehran, Iran, 15875-4413
| | - Mohsen Mohseni
- Department of Polymer and Color Engineering, Amirkabir University of Technology, 350, Hafez Avenue, Tehran, Iran, 15875-4413
| | - Hesam Makki
- Department of Polymer and Color Engineering, Amirkabir University of Technology, 350, Hafez Avenue, Tehran, Iran, 15875-4413
| | - Hossein Yahyaei
- Department of Polymer and Color Engineering, Amirkabir University of Technology, 350, Hafez Avenue, Tehran, Iran, 15875-4413
| | - Hossein Ghanbari
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences (TUMS), Italia Street, Tehran, Iran, 1477-55469
- Medical Biomaterials Research Center (MBRC), Tehran University of Medical Sciences (TUMS), Italia Street, Tehran, Iran, 1477-55469
| | - Alba González
- POLYMAT, Department of Polymer Science and Technology, University of the Basque Country (UPV/EHU), Avda. Tolosa 72, Donostia-San Sebastian 20018, Spain
| | - Lourdes Irusta
- POLYMAT, Department of Polymer Science and Technology, University of the Basque Country (UPV/EHU), Avda. Tolosa 72, Donostia-San Sebastian 20018, Spain
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30
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Zhao C, Zhou L, Chiao M, Yang W. Antibacterial hydrogel coating: Strategies in surface chemistry. Adv Colloid Interface Sci 2020; 285:102280. [PMID: 33010575 DOI: 10.1016/j.cis.2020.102280] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/20/2020] [Accepted: 09/24/2020] [Indexed: 10/23/2022]
Abstract
Hydrogels have emerged as promising antimicrobial materials due to their unique three-dimensional structure, which provides sufficient capacity to accommodate various materials, including small molecules, polymers and particles. Coating substrates with antibacterial hydrogel layers has been recognized as an effective strategy to combat bacterial colonization. To prevent possible delamination of hydrogel coatings from substrates, it is crucial to attach hydrogel layers via stronger links, such as covalent bonds. To date, various surface chemical strategies have been developed to introduce hydrogel coatings on different substrates. In this review, we first give a brief introduction of the major strategies for designing antibacterial coatings. Then, we summarize the chemical methods used to fix the antibacterial hydrogel layer on the substrate, which include surface-initiated graft crosslinking polymerization, anchoring the hydrogel layer on the surface during crosslinking, and chemical crosslinking of layer-by-layer coating. The reaction mechanisms of each method and matched pretreatment strategies are systemically documented with the aim of introducing available protocols to researchers in related fields for designing hydrogel-coated antibacterial surfaces.
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31
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Saleemi MA, Yong PVC, Wong EH. Investigation of antimicrobial activity and cytotoxicity of synthesized surfactant-modified carbon nanotubes/polyurethane electrospun nanofibers. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.nanoso.2020.100612] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Alavi SK, Lotz O, Akhavan B, Yeo G, Walia R, McKenzie DR, Bilek MM. Atmospheric Pressure Plasma Jet Treatment of Polymers Enables Reagent-Free Covalent Attachment of Biomolecules for Bioprinting. ACS APPLIED MATERIALS & INTERFACES 2020; 12:38730-38743. [PMID: 32706575 DOI: 10.1021/acsami.0c07169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Three-dimensional (3D) bioprinting, where cells, hydrogels, and structural polymers can be printed layer by layer into complex designs, holds great promise for advances in medicine and the biomedical sciences. In principle, this technique enables the creation of highly patient-specific disease models and biomedical implants. However, an ability to tailor surface biocompatibility and interfacial bonding between printed components, such as polymers and hydrogels, is currently lacking. Here we demonstrate that an atmospheric pressure plasma jet (APPJ) can locally activate polymeric surfaces for the reagent-free covalent attachment of proteins and hydrogel in a single-step process at desired locations. Polyethylene and poly-ε-caprolactone were used as example polymers. Covalent attachment of the proteins and hydrogel was demonstrated by resistance to removal by rigorous sodium dodecyl sulfate washing. The immobilized protein and hydrogel layers were analyzed using Fourier transform infrared and X-ray photoelectron spectroscopy. Importantly, the APPJ surface activation also rendered the polymer surfaces mildly hydrophilic as required for optimum biocompatibility. Water contact angles were observed to be stable within a range where the conformation of biomolecules is preserved. Single and double electrode designs of APPJs were compared in their characteristics relevant to localized surface functionalization, plume length, and shape. As a proof of efficacy in a biological context, APPJ-treated polyethylene functionalized with fibronectin was used to demonstrate improvements in cell adhesion and proliferation. These results have important implications for the development of a new generation of 3D bioprinters capable of spatially patterned and tailored surface functionalization performed during the 3D printing process in situ.
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Affiliation(s)
| | - Oliver Lotz
- School of Physics, The University of Sydney, Sydney, New South Wales 2006 Australia
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006 Australia
| | - Behnam Akhavan
- School of Physics, The University of Sydney, Sydney, New South Wales 2006 Australia
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006 Australia
| | - Giselle Yeo
- Charles Perkins Centre, The University of Sydney, Sydney, New South Wales 2006 Australia
| | - Rashi Walia
- School of Physics, The University of Sydney, Sydney, New South Wales 2006 Australia
| | - David R McKenzie
- School of Physics, The University of Sydney, Sydney, New South Wales 2006 Australia
- Charles Perkins Centre, The University of Sydney, Sydney, New South Wales 2006 Australia
- Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006 Australia
| | - Marcela M Bilek
- School of Physics, The University of Sydney, Sydney, New South Wales 2006 Australia
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006 Australia
- Charles Perkins Centre, The University of Sydney, Sydney, New South Wales 2006 Australia
- Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006 Australia
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Wang J, Qiu M, He C. A zwitterionic polymer/PES membrane for enhanced antifouling performance and promoting hemocompatibility. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118119] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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34
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Controlled surface modification of silicone rubber by gamma-irradiation followed by RAFT grafting polymerization. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109817] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Wang K, Pan W, Liu Z, Wallin TJ, van Dover G, Li S, Giannelis EP, Menguc Y, Shepherd RF. 3D Printing of Viscoelastic Suspensions via Digital Light Synthesis for Tough Nanoparticle-Elastomer Composites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2001646. [PMID: 32419251 DOI: 10.1002/adma.202001646] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/23/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
The rheological parameters required to print viscoelastic nanoparticle suspensions toward tough elastomers via Digital Light Synthesis (DLS) (an inverted projection stereolithography system) are reported. With a model material of functionalized silica nanoparticles suspended in a poly(dimethylsiloxane) matrix, the rheological-parameters-guided DLS can print structures seven times tougher than those formed from the neat polymers. The large yield stress and high viscosity associated with these high concentration nanoparticle suspensions, however, may prevent pressure-driven flow, a mechanism essential to stereolithography-based printing. Thus, to better predict and evaluate the printability of high concentration nanoparticle suspensions, the boundary of rheological properties compatible with DLS is defined using a non-dimensional Peclet number (Pe). Based on the proposed analysis of rheological parameters, the border of printability at standard temperature and pressure (STP) is established by resin with a silica nanoparticle mass fraction (ϕsilica ) of 0.15. Above this concentration, nanoparticle suspensions have Pe > 1 and are not printable. Beyond STP, the printability can be further extended to ϕsilica = 0.20 via a heating module with lower shear rate to reduce the Pe < 1. The printed rubber possesses even higher toughness (Γ ≈ 155 kJ m-3 ), which is 40% higher over that of ϕsilica = 0.15.
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Affiliation(s)
- Kaiyang Wang
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Wenyang Pan
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Zheng Liu
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, 14853, USA
| | | | | | - Shuo Li
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Emmanuel P Giannelis
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | | | - Robert F Shepherd
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, 14853, USA
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36
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Modification of PDMS with acrylic acid and acrylic acid/ethylene glycol dimethacrylate by simultaneous polymerization assisted by gamma radiation. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2020.108754] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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37
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Mitra D, Kang ET, Neoh KG. Antimicrobial Copper-Based Materials and Coatings: Potential Multifaceted Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2020; 12:21159-21182. [PMID: 31880421 DOI: 10.1021/acsami.9b17815] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Surface contamination by microbes leads to several detrimental consequences like hospital- and device-associated infections. One measure to inhibit surface contamination is to confer the surfaces with antimicrobial properties. Copper's antimicrobial properties have been known since ancient times, and the recent resurgence in exploiting copper for application as antimicrobial materials or coatings is motivated by the growing concern about antibiotic resistance and the pressure to reduce antibiotic use. Copper, unlike silver, demonstrates rapid and high microbicidal efficacy against pathogens that are in close contact under ambient indoor conditions, which enhances its range of applicability. This review highlights the mechanisms behind copper's potent antimicrobial property, the design and fabrication of different copper-based antimicrobial materials and coatings comprising metallic copper/copper alloys, copper nanoparticles or ions, and their potential for practical applications. Finally, as the antimicrobial coatings market is expected to grow, we offer our perspectives on the implications of increased copper release into the environment and the potential ecotoxicity effects and possibility of development of resistant genes in pathogens.
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Affiliation(s)
- Debirupa Mitra
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 117576
| | - En-Tang Kang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 117576
| | - Koon Gee Neoh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 117576
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Park JY, Lee JB, Shin WB, Kang ML, Shin YC, Son DH, Yi SW, Yoon JK, Kim JY, Ko J, Kim CS, Yoon JS, Sung HJ. Nasolacrimal stent with shape memory as an advanced alternative to silicone products. Acta Biomater 2020; 101:273-284. [PMID: 31707084 DOI: 10.1016/j.actbio.2019.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 10/29/2019] [Accepted: 11/01/2019] [Indexed: 01/27/2023]
Abstract
Epiphora is the overflow of tears typically caused by obstruction or occlusion of the nasolacrimal duct. More attention is required to address this global health issue owing to the increase in air pollution. Implantation of a silicone stent is the preferred treatment for epiphora; however, introducing a silicone stent into a narrow duct with complex geometry is challenging as it requires guidance by a sharp metal needle. Additionally, silicone can cause adverse reactions such as biofilm formation and tear flow resistance due to its extreme hydrophobicity. To overcome these problems, in this study we developed a new type of biocompatible shape memory polymer (SMP) stent with elasticity capacity for self-expansion. First, SMPs in the form of x%poly(ε-caprolactone)-co-y%poly(glycidyl methacrylate) (x%PCL-y%PGMA) were synthesized via ring opening polymerization by varying the molar ratio of PCL (x%) and PGMA (y%). Second, the shape memory and mechanical properties were tuned by controlling the crosslinking degree and concentration of x%PCL-y%PGMA solution to produce a test type of SMP stent. Lastly, this 94%PCL-06%PGMA stent exhibited more standout critical functions in a series of in vitro and in vivo experiments such as a cell growth-supporting level of biocompatibility with nasal epithelial cells without significant inflammatory responses, better resistance to biofilm formation, and more efficient capacity to drain tear than the silicone control. Overall, 94%PCL-06%PGMA can be suggested as a superior alternative to the currently used materials for nasolacrimal stents. STATEMENT OF SIGNIFICANCE: Silicone intubation (stenting) has been widely used to treat nasolacrimal duct obstruction, however, it can cause adverse clinical effects such as bacterial infection; presents procedural challenges because of the curved nasolacrimal duct structure; and shows poor drainage efficiency stemming from the highly hydrophobic nature of silicone. In this work, we describe an innovative shape memory polymer (SMP) as a superior alternative to conventional silicone-based materials for nasolacrimal duct intubation. We demonstrate the clear advantages of the SMP over conventional silicone, including a much higher drainage capacity and superior resistance to bacterial infection.
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Affiliation(s)
- Ju Young Park
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jung Bok Lee
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Woo Beom Shin
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722 Republic of Korea
| | - Mi-Lan Kang
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea; TMD Lab Co., Ltd., 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722 Republic of Korea
| | - Yong Cheol Shin
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Deok Hyeon Son
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Se Won Yi
- TMD Lab Co., Ltd., 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722 Republic of Korea
| | - Jeong-Kee Yoon
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Ji Young Kim
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722 Republic of Korea
| | - JaeSang Ko
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722 Republic of Korea
| | - Chang-Soo Kim
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea; Numais Co., Ltd., 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722 Republic of Korea
| | - Jin Sook Yoon
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722 Republic of Korea.
| | - Hak-Joon Sung
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
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39
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Kong L, Zhang M, Zhang Y, Zhang W, Zhou X, Zhang L, Wang X. Influence of the interfacial molecular structures of quaternary ammonium-type poly(ionic liquid) brushes on their antibacterial properties. Polym Chem 2020. [DOI: 10.1039/d0py01153c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Alkyl chains of C4 are more active in killing bacteria than C16 due to their orderly extension toward PBS solution.
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Affiliation(s)
- Lingli Kong
- Department of Chemistry
- School of Science
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Ming Zhang
- Department of Chemistry
- School of Science
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Yan Zhang
- Department of Chemistry
- School of Science
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Wei Zhang
- Department of Chemistry
- School of Science
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Xianjing Zhou
- Department of Chemistry
- School of Science
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Li Zhang
- Department of Chemistry
- School of Science
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Xinping Wang
- Department of Chemistry
- School of Science
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
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40
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Burroughs L, Ashraf W, Singh S, Martinez-Pomares L, Bayston R, Hook AL. Development of dual anti-biofilm and anti-bacterial medical devices. Biomater Sci 2020; 8:3926-3934. [DOI: 10.1039/d0bm00709a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Silicone catheters impregnated with antibiotics and coated with an anti-attachment polyacrylate produce a device with dual anti-biofilm and anti-bacterial properties.
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Affiliation(s)
| | | | - Sonali Singh
- School of Life Sciences
- Faculty of Medicine and Health Sciences
- Queen's Medical Centre
- Nottingham NG7 2UH
- UK
| | - Luisa Martinez-Pomares
- School of Life Sciences
- Faculty of Medicine and Health Sciences
- Queen's Medical Centre
- Nottingham NG7 2UH
- UK
| | | | - Andrew L. Hook
- School of Pharmacy
- University of Nottingham
- Nottingham NG7 2RD
- UK
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41
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Wu J, Zhang D, Wang Y, Mao S, Xiao S, Chen F, Fan P, Zhong M, Tan J, Yang J. Electric Assisted Salt-Responsive Bacterial Killing and Release of Polyzwitterionic Brushes in Low-Concentration Salt Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:8285-8293. [PMID: 31194566 DOI: 10.1021/acs.langmuir.9b01151] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Polyzwitterionic brushes with strong antipolyelectrolyte effects have shown great potential as versatile platforms for the development of switchable friction/lubrication and bacterial absorption/desorption surfaces. However, the surface property switches of these brushes are usually triggered by high salt concentrations (>0.53 M), thereby greatly limiting their applications in biological fields where the salt concentration for mammals is ?0.15 M. To solve this problem, an electric field was used to assist the salt-responsive process of the polyzwitterionic brushes to achieve bacterial release at low concentrations of the salt solution. Briefly, poly(3-(dimethyl (4-vinylbenzyl) ammonium) propyl sulfonate) (polyDVBAPS) brushes grafted on ITO surfaces were prepared by surface initiated atom transfer radical polymerization. The bacterial release of this surface was conducted under an electric field, where anions were migrated and enriched around the brush-grafted ITO surface as anode. The local high concentration ion led to the conformation change of the brush and release of the attached bacteria. The effect of salt type, salt concentration, electric field strength, and conducting time on the bacterial release properties were investigated. The results indicated that under an electrical field of 3 V/mm, polyDVBAPS showed release capacities of ?93% for E. coli and ?81% for S. aureus in 0.12 M NaCl electrolyte solution. Furthermore, by the introduction of a bactericidal agent, i.e., Triclosan (TCS), an antibacterial surface with dual functions of killing and release was fabricated. This surface could kill ?90% and release 95% of attached E. coli in a 0.12 M NaCl solution by the application of a 3 V/mm electric field. This work demonstrated the feasibility of triggering a salt-responsive behavior of polyzwitterionic at low salt concentration by assistance of electric field, which would greatly extend the applications of polyzwitterionic, in particular in biological applications.
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Affiliation(s)
- Jiahui Wu
- College of Materials Science& Engineering Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Dong Zhang
- College of Materials Science& Engineering Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Yang Wang
- College of Materials Science& Engineering Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Shihua Mao
- College of Materials Science& Engineering Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Shengwei Xiao
- College of Materials Science& Engineering Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Feng Chen
- College of Materials Science& Engineering Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Ping Fan
- College of Materials Science& Engineering Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Mingqiang Zhong
- College of Materials Science& Engineering Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Jun Tan
- College of Biological, Chemical Science and Technology Jiaxing University , Jiaxing 314001 , P. R. China
| | - Jintao Yang
- College of Materials Science& Engineering Zhejiang University of Technology , Hangzhou 310014 , P. R. China
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42
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Ji M, Chen X, Luo J, Wan Y. Improved blood compatibility of polysulfone membrane by anticoagulant protein immobilization. Colloids Surf B Biointerfaces 2019; 175:586-595. [DOI: 10.1016/j.colsurfb.2018.12.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 12/10/2018] [Accepted: 12/11/2018] [Indexed: 01/27/2023]
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43
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Weidenbacher L, Müller E, Guex AG, Zündel M, Schweizer P, Marina V, Adlhart C, Vejsadová L, Pauer R, Spiecker E, Maniura-Weber K, Ferguson SJ, Rossi RM, Rottmar M, Fortunato G. In Vitro Endothelialization of Surface-Integrated Nanofiber Networks for Stretchable Blood Interfaces. ACS APPLIED MATERIALS & INTERFACES 2019; 11:5740-5751. [PMID: 30668107 DOI: 10.1021/acsami.8b18121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Despite major technological advances within the field of cardiovascular engineering, the risk of thromboembolic events on artificial surfaces in contact with blood remains a major challenge and limits the functionality of ventricular assist devices (VADs) during mid- or long-term therapy. Here, a biomimetic blood-material interface is created via a nanofiber-based approach that promotes the endothelialization capability of elastic silicone surfaces for next-generation VADs under elevated hemodynamic loads. A blend fiber membrane made of elastic polyurethane and low-thrombogenic poly(vinylidene fluoride- co-hexafluoropropylene) was partially embedded into the surface of silicone films. These blend membranes resist fundamental irreversible deformation of the internal structure and are stably attached to the surface, while also exhibiting enhanced antithrombotic properties when compared to bare silicone. The composite material supports the formation of a stable monolayer of endothelial cells within a pulsatile flow bioreactor, resembling the physiological in vivo situation in a VAD. The nanofiber surface modification concept thus presents a promising approach for the future design of advanced elastic composite materials that are particularly interesting for applications in contact with blood.
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Affiliation(s)
| | | | | | | | - Peter Schweizer
- Department of Materials Science and Engineering, Institute of Micro- and Nanostructure Research & Center for Nanoanalysis and Electron Microscopy , Friedrich-Alexander-Universität Erlangen-Nürnberg , 91058 Erlangen , Germany
| | | | - Christian Adlhart
- Institute of Chemistry and Biotechnology , Zurich University of Applied Sciences ZHAW , 8820 Wädenswil , Switzerland
| | - Lucie Vejsadová
- Institute of Chemistry and Biotechnology , Zurich University of Applied Sciences ZHAW , 8820 Wädenswil , Switzerland
| | - Robin Pauer
- Electron Microscopy Center , Empa, Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf , Switzerland
| | - Erdmann Spiecker
- Department of Materials Science and Engineering, Institute of Micro- and Nanostructure Research & Center for Nanoanalysis and Electron Microscopy , Friedrich-Alexander-Universität Erlangen-Nürnberg , 91058 Erlangen , Germany
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44
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Laschewsky A, Rosenhahn A. Molecular Design of Zwitterionic Polymer Interfaces: Searching for the Difference. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:1056-1071. [PMID: 30048142 DOI: 10.1021/acs.langmuir.8b01789] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The widespread occurrence of zwitterionic compounds in nature has incited their frequent use in designing biomimetic materials. Therefore, zwitterionic polymers are a thriving field. A particular interest for this particular polymer class has currently focused on their use in establishing neutral, low-fouling surfaces. After highlighting strategies to prepare model zwitterionic surfaces as well as those that are more suitable for practical purposes relying strongly on radical polymerization methods, we present recent efforts to diversify the structure of the hitherto quite limited variety of zwitterionic monomers and of the derived polymers. We identify key structural variables, consider their influence on essential properties such as overall hydrophilicity and long-term stability, and discuss promising targets for the synthesis of new variants.
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Affiliation(s)
- André Laschewsky
- Institut für Chemie, Universität Potsdam , Karl-Liebknechtstr. 24-25 , 14476 Potsdam-Golm , Germany
- Fraunhofer Institute for Applied Polymer Research IAP , Geiselbergstr. 69 , 14476 Potsdam-Golm , Germany
| | - Axel Rosenhahn
- Analytische Chemie-Biogrenzflächen , Ruhr-Universität Bochum , Universitätsstr. 150 NC , 44801 Bochum , Germany
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45
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Tang SH, Domino MY, Venault A, Lin HT, Hsieh C, Higuchi A, Chinnathambi A, Alharbi SA, Tayo LL, Chang Y. Bioinert Control of Zwitterionic Poly(ethylene terephtalate) Fibrous Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:1727-1739. [PMID: 29925240 DOI: 10.1021/acs.langmuir.8b00634] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Poly(ethylene terephtalate) (PET)-based materials face general biofouling issues that we addressed by grafting a copolymer of glycidyl methacrylate and sulfobetaine methacrylate, poly(GMA- r-SBMA). The grafting procedure involved a dip-coating step followed by UV-exposure and led to successful grafting of the copolymer as evidenced by X-ray photoelectron spectroscopy and zeta potential measurements. It did not modify the pore size nor the porosity of the PET membranes. In addition, their surface hydrophilicity was considerably improved, with a water contact angle falling to 30° in less than 20 s and 0° in less than 1 min. The effect of copolymer concentration in the coating bath (dip-coating procedure) and UV exposure time (UV step) were scrutinized during biofouling studies involving several bacteria such as Escherichia coli and Stenotrophomonas maltophilia, but also whole blood and HT1080 fibroblasts cells. The results indicate that if all conditions led to improved biofouling mitigation, due to the efficiency of the zwitterionic copolymer and grafting procedure, a higher concentration (15 mg/mL) and longer UV exposure time (at least 10 min) enhanced the grafting density which reflected on the biofouling results and permitted a better general biofouling control regardless of the nature of the biofoulant (bacteria, blood cells, fibroblasts).
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Affiliation(s)
- Shuo-Hsi Tang
- Department of Chemical Engineering and R&D Center for Membrane Technology , Chung Yuan Christian University , Chungli District, Taoyuan 320 , Taiwan R.O.C
| | - Maria Ysabel Domino
- School of Chemical Engineering and Chemistry, Mapúa Institute of Technology , Mapúa University , Muralla St , Intramuros, Manila , 1002 Metro Manila , Philippines
| | - Antoine Venault
- Department of Chemical Engineering and R&D Center for Membrane Technology , Chung Yuan Christian University , Chungli District, Taoyuan 320 , Taiwan R.O.C
| | - Hao-Tung Lin
- Department of Chemical Engineering and R&D Center for Membrane Technology , Chung Yuan Christian University , Chungli District, Taoyuan 320 , Taiwan R.O.C
| | - Chun Hsieh
- Department of Chemical Engineering and R&D Center for Membrane Technology , Chung Yuan Christian University , Chungli District, Taoyuan 320 , Taiwan R.O.C
| | - Akon Higuchi
- Department of Chemical and Materials Engineering , National Central University , Jhong-Li, Taoyuan 320 , Taiwan ROC
- Department of Botany and Microbiology, College of Science , King Saud University , P.O. Box 2455, Riyadh 11451 , Saudi Arabia
| | - Arunachalam Chinnathambi
- Department of Botany and Microbiology, College of Science , King Saud University , P.O. Box 2455, Riyadh 11451 , Saudi Arabia
| | - Sulaiman Ali Alharbi
- Department of Botany and Microbiology, College of Science , King Saud University , P.O. Box 2455, Riyadh 11451 , Saudi Arabia
| | - Lemmuel L Tayo
- School of Chemical Engineering and Chemistry, Mapúa Institute of Technology , Mapúa University , Muralla St , Intramuros, Manila , 1002 Metro Manila , Philippines
| | - Yung Chang
- Department of Chemical Engineering and R&D Center for Membrane Technology , Chung Yuan Christian University , Chungli District, Taoyuan 320 , Taiwan R.O.C
- Department of Botany and Microbiology, College of Science , King Saud University , P.O. Box 2455, Riyadh 11451 , Saudi Arabia
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46
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Formation of textured Al thin film on silicone rubber to obtain superhydrophobic property. SN APPLIED SCIENCES 2018. [DOI: 10.1007/s42452-018-0142-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Surface biofunctionalization of the decellularized porcine aortic valve with VEGF-loaded nanoparticles for accelerating endothelialization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 97:632-643. [PMID: 30678950 DOI: 10.1016/j.msec.2018.12.079] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 12/09/2018] [Accepted: 12/24/2018] [Indexed: 12/15/2022]
Abstract
The original intention for building a tissue-engineered heart valve (TEHV) was to simulate a normal heart valve and overcome the insufficiency of the commonly used heart valve replacement in the clinic. The endothelialization of the TEHV is very important as the endothelialized TEHV can decrease platelet adhesion and delay the valvular calcification decline process. In this work, we encapsulated vascular endothelial growth factor (VEGF) into polycaprolactone (PCL) nanoparticles. Then, through the Michael addition reaction, PCL nanoparticles were introduced onto the decellularized aortic valve to prepare a hybrid valve. The encapsulation efficiency of the PCL nanoparticles for VEGF was up to 82%, and the in vitro accumulated release rate was slow without an evident initial burst release. In addition, the hybrid valve had a decreased hemolysis ratio and possessed antiplatelet adhesion capacity, and it was able to promote the adhesion and proliferation of endothelial cells, covering the surface with a dense cell layer to accelerate endothelialization. An experiment involving the subcutaneous implant in SD rats showed that at week 8, lots of blood capillaries were formed in the hybrid valve. Mechanics performance testing indicated that the mechanical property of the hybrid valve was partly improved. Taken together, we applied a nano-drug controlled release system to fabricate TEHV, and provide an approach for the biofunctionalization of the TEHV scaffold for accelerating endothelialization.
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Drupitha MP, Bankoti K, Pal P, Das B, Parameswar R, Dhara S, Nando GB, Naskar K. Morphology-induced physico-mechanical and biological characteristics of TPU-PDMS blend scaffolds for skin tissue engineering applications. J Biomed Mater Res B Appl Biomater 2018; 107:1634-1644. [PMID: 30332525 DOI: 10.1002/jbm.b.34256] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 06/29/2018] [Accepted: 08/12/2018] [Indexed: 11/08/2022]
Abstract
Composition and architecture of scaffolds are the most important factors determining the performance of skin substitutes. In this work, morphology induced unique physical and biological characteristics of compatibilized TPU-PDMS blend scaffolds at 90:10, 80:20, and 70:30 blend ratios of TPU and PDMS was studied. The fiber morphology, porosity, surface wettability, and mechanical properties of electrospun scaffolds were distinctly influenced by the presence of PDMS. Interestingly, the scaffold architecture varied from electrospun fibers to porous fibers and finally occurrence of unique porous beads noticed at 30% PDMS in the microstructure which was confirmed using FESEM. Micro-CT analysis revealed that the porosity of electrospun scaffolds was enhanced from 61% to 79% with 30 parts of PDMS addition. Moreover, MTT assay and cell proliferation were studied using human skin fibroblast cells and found to be significantly enhanced with the PDMS percentage. TPU-PDMS blends offer better overall performance at 70:30 blend ratio of TPU and PDMS (T70P30). Only 4% of hemolysis was observed for T70P30 blends, which establishes the hemocompatibility of the material. In comparison, the results reveal the potential of the cytocompatible T70P30 scaffold for the fabrication of skin substitutes for tissue engineering applications. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 1634-1644, 2019.
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Affiliation(s)
- M P Drupitha
- Indian Institute of Technology, Rubber Technology Centre, Kharagpur, 721302, India
| | - Kamakshi Bankoti
- Indian Institute of Technology, School of Medical Science and Technology, Kharagpur, 721302, India
| | - Pallabi Pal
- Indian Institute of Technology, School of Medical Science and Technology, Kharagpur, 721302, India
| | - Bodhisatwa Das
- Indian Institute of Technology, School of Medical Science and Technology, Kharagpur, 721302, India
| | - Ramesh Parameswar
- Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Poojapura, Thiruvananthapuram, 695012, India
| | - Santanu Dhara
- Indian Institute of Technology, School of Medical Science and Technology, Kharagpur, 721302, India
| | - Golok B Nando
- Indian Institute of Technology, Rubber Technology Centre, Kharagpur, 721302, India
| | - Kinsuk Naskar
- Indian Institute of Technology, Rubber Technology Centre, Kharagpur, 721302, India
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Ghaleh H, Jalili K, Maher BM, Rahbarghazi R, Mehrjoo M, Bonakdar S, Abbasi F. Biomimetic antifouling PDMS surface developed via well-defined polymer brushes for cardiovascular applications. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.08.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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