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Gupta R, Gaddam A, Prajapati D, Dimov S, Mishra A, Vadali M. Enhancing Bactericidal Properties of Ti6Al4V Surfaces through Micro and Nano Hierarchical Laser Texturing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39086155 DOI: 10.1021/acs.langmuir.4c01173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
Orthopedic and dental implants made from Ti6Al4V are widely used due to their excellent mechanical properties and biocompatibility. However, the long-term performance of these implants can be compromised by bacterial infections. This study explores the development of hierarchically textured surfaces with enhanced bactericidal properties to address such challenges. Hierarchical surface structures were developed by combining microscale features produced by a microsecond laser and superimposed submicron features produced using a femtosecond laser. Microscale patterns were produced by the pulsed laser surface melting process, whereas submicrometer laser-induced periodic surface structures were created on top of them by femtosecond laser processing. Escherichia coli bacterial cells were cultured on the textured surface. After 24 h, a staining analysis was performed using SYTO9 and PI dyes to investigate the samples with a confocal microscope for live dead assays. Results showed bacterial colony formation onto the microscale surface textures with live bacterial cells, whereas the hierarchical surface textures display segregated and physically damaged bacterial cell attachments on surfaces. The hierarchical surface textures showed ∼98% dead bacterial cells due to the combined effect of its multiscale surface features and oxide formation during the laser processing steps. The efficacy of hierarchical surface textures in enhancing the antibacterial behavior of Ti6Al4V implants is evident from the conducted research. Such laser-based surface treatments can find potential applications in different industrial sectors.
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Affiliation(s)
- Rohit Gupta
- Mechanical Engineering Department, IIT Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India
| | - Anvesh Gaddam
- Department of Mechanical Engineering, University of Birmingham, Birmingham B15 2TT, U.K
| | - Deepak Prajapati
- Microbiology Laboratory, Materials Engineering Department, IIT Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India
| | - Stefan Dimov
- Department of Mechanical Engineering, University of Birmingham, Birmingham B15 2TT, U.K
| | - Abhijit Mishra
- Microbiology Laboratory, Materials Engineering Department, IIT Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India
| | - Madhu Vadali
- Mechanical Engineering Department, IIT Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India
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2
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Wang H, Zhou S, Wang T, Zhou Z, Huang Y, Handschuh-Wang S, Li H, Zhao Y, Tang Y. Bottom-up strategy of multi-level structured boron-doped diamond for the durable electrode in water purification. J Colloid Interface Sci 2023; 652:1512-1521. [PMID: 37660608 DOI: 10.1016/j.jcis.2023.08.120] [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: 05/11/2023] [Revised: 08/07/2023] [Accepted: 08/19/2023] [Indexed: 09/05/2023]
Abstract
Long-term exposition of electrodes to aqueous media inevitably results in biofouling and adhesion of bacteria, reducing the electrolysis efficiency of electrodes for water treatment. To ensure technically efficient antifouling of materials for durable electrodes, hierarchical micro-/nano structured boron-doped diamond (BDD) electrodes were designed and synthesized. Multi-level structured BDD was coated on titanium mesh by a bottom-up strategy, based on a combination of self-assembly seeding and hot filament chemical vapor deposition (HFCVD) growth. The morphology of the BDD coating can be controlled by manipulating the seeding density and boron doping concentration. The designed micro/nano hierarchical structure of the BDD electrode suppressed bacterial adhesion greatly and exhibited excellent anti-biofouling efficiency with an antibacterial rate of ∼ 93 %, which entails simplified self-cleaning and durable BDD-coated electrodes. The BDD-coated electrodes were employed to electrochemically treat Escherichia coli-contaminated water, killing virtually all bacteria (≥99.9 %) in 1 min. Finally, real river water was electrochemically treated, reducing the chemical oxygen demand (COD) down to 5 mg/L in 4 h. The excellent performance shows the great potential of the structured BDD electrodes for long-term water purification.
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Affiliation(s)
- Hongjin Wang
- Advanced Energy Storage Technology Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Shuangqing Zhou
- Advanced Energy Storage Technology Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Tao Wang
- Advanced Energy Storage Technology Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - Zhiye Zhou
- Advanced Energy Storage Technology Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Yanggen Huang
- Advanced Energy Storage Technology Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Stephan Handschuh-Wang
- The International School of Advanced Materials, School of Emergent Soft Matter, South China University of Technology, Guangzhou 511442, China
| | - Hongyu Li
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Ying Zhao
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Yongbing Tang
- Advanced Energy Storage Technology Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
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3
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Siddiquie RY, Sharma K, Banerjee A, Agrawal A, Joshi SS. Time-dependent plastic behavior of bacteria leading to rupture. J Mech Behav Biomed Mater 2023; 145:106048. [PMID: 37523842 DOI: 10.1016/j.jmbbm.2023.106048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/02/2023]
Abstract
A study of the mechanical response of bacteria is essential in designing an antibacterial surface for implants and food packaging applications. This research evaluated the mechanical response of Escherichia coli under different loading conditions. Indentation and prolonged creep tests were performed to understand their viscoelastic-plastic response. The results indicate that varying loading rates from 1 μm/s to 5 μm/s show an increase in modulus of 182% and 90%, calculated in the loading and unloading cycles, respectively, and a decrease in adhesion force by 42%. However, on varying loads from 5 nN to 25 nN, nominal change is observed in both modulus and adhesion force. The rupture curve at 100 nN load shows elastic and a small plastic deformation accompanied by a sharp peak indicating the cell wall rupture. The rupture force at the peak was found to be 34.38 ± 5.15 nN, irrespective of the loading rate, making it a failure criterion for bacteria rupture. The creep response of bacteria increases (for 6 s) and then remains constant (for 15 s) with time, indicating that a standard linear solid (SLS) model applies to this behavior. This work attempts to evaluate the mechanical properties of E. coli bacteria focusing on its rupture by contact killing mechanism.
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Affiliation(s)
- Reshma Y Siddiquie
- Department of Mechanical Engineering, Indian Institute of Technology, Bombay, India
| | - Kuldeep Sharma
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Bombay, India
| | - Anirban Banerjee
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Bombay, India
| | - Amit Agrawal
- Department of Mechanical Engineering, Indian Institute of Technology, Bombay, India
| | - Suhas S Joshi
- Department of Mechanical Engineering, Indian Institute of Technology, Bombay, India; Department of Mechanical Engineering, Indian Institute of Technology, Indore, India.
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4
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Sun J, Wang K, Hao R, Zhang Z, Feng Z, Shi Z, Yuan W, Jing Z, Zhang L. Disregarded Free Chains Affect Bacterial Adhesion on Cross-Linked Polydimethylsiloxane Surfaces. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37466242 DOI: 10.1021/acsami.3c05477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
The surface properties exhibited by chemically cross-linked polydimethylsiloxanes (CPDMS) such as morphology, stiffness, and wettability have garnered great interest in the study of bacteria-material interactions. Nevertheless, the hidden factor of uncross-linked free PDMS chains that dissociate in CPDMS has often been overlooked when studying the biofilm formation on these polymeric elastomer surfaces. Here, we undertake a comparative characterization of the effects of free chains in CPDMS on bacterial adhesion to both flat and textured Sharklet CPDMS surfaces. Surprisingly, compared to unextracted surfaces, removing free chains from flat and textured CPDMS through solvent extraction results in a tremendous increase in bacterial colony-forming units for both Gram-negative and Gram-positive bacteria up to 2-3 orders in the initial adhesion stage of 2 h. These findings demonstrate that the solvent extraction of free chains from CPDMS is essential in studying the interactions between bacteria and silicone elastomer materials when focusing on a single variable.
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Affiliation(s)
- Jining Sun
- School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, China
| | - Kunwen Wang
- School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Ruonan Hao
- School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhiyuan Zhang
- School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhongyu Feng
- School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhenqiang Shi
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Wenjie Yuan
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China
| | - Zhanyu Jing
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China
| | - Lei Zhang
- School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, China
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5
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Tarannum T, Ahmed S. Recent development in antiviral surfaces: Impact of topography and environmental conditions. Heliyon 2023; 9:e16698. [PMID: 37260884 PMCID: PMC10227326 DOI: 10.1016/j.heliyon.2023.e16698] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023] Open
Abstract
The transmission of viruses is largely dependent on contact with contaminated virus-laden communal surfaces. While frequent surface disinfection and antiviral coating techniques are put forth by researchers as a plan of action to tackle transmission in dire situations like the Covid-19 pandemic caused by SARS-CoV-2 virus, these procedures are often laborious, time-consuming, cost-intensive, and toxic. Hence, surface topography-mediated antiviral surfaces have been gaining more attention in recent times. Although bioinspired hydrophobic antibacterial nanopatterned surfaces mimicking the natural sources is a very prevalent and successful strategy, the antiviral prospect of these surfaces is yet to be explored. Few recent studies have explored the potential of nanopatterned antiviral surfaces. In this review, we highlighted surface properties that have an impact on virus attachment and persistence, particularly focusing and emphasizing on the prospect of the nanotextured surface with enhanced properties to be used as antiviral surface. In addition, recent developments in surface nanopatterning techniques depending on the nano-scaled dimensions have been discussed. The impacts of environments and surface topology on virus inactivation have also been reviewed.
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Affiliation(s)
- Tanjina Tarannum
- Department of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka-1000. Bangladesh
| | - Shoeb Ahmed
- Department of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka-1000. Bangladesh
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6
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Park M, Gu Y, Mao X, Grigoropoulos CP, Zorba V. Mechanisms of ultrafast GHz burst fs laser ablation. SCIENCE ADVANCES 2023; 9:eadf6397. [PMID: 36947628 PMCID: PMC10032593 DOI: 10.1126/sciadv.adf6397] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Gigahertz (GHz) femtosecond (fs) lasers have opened possibilities for enhancing and controlling the laser machining quality to engineer the physicochemical properties of materials. However, fundamental understanding of laser-material interactions by GHz fs laser has remained unsolved due to the complexity of associated ablation dynamics. Here, we study the ablation dynamics of copper (Cu) by GHz fs bursts using in situ multimodal diagnostics, time-resolved scattering imaging, emission imaging, and emission spectroscopy. A combination of probing techniques reveals that GHz fs bursts rapidly remove molten Cu from the irradiated spot due to the recoil pressure exerted by following fs pulses. Material ejection essentially stops right after the burst irradiation due to the limited amount of remnant matter, combined with the suppressed heat conduction into the target material. Our work provides insights into the complex ablation mechanisms incurred by GHz fs bursts, which are critical in selecting optimal laser conditions in cross-cutting processing, micro/nano-fabrication, and spectroscopy applications.
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Affiliation(s)
- Minok Park
- Laser Technologies Group, Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Laser Thermal Laboratory, Department of Mechanical Engineering, University of California at Berkeley, Berkeley, CA 94720-1740, USA
- Department of Mechanical Engineering, University of California at Berkeley, Berkeley, CA 94720-1740, USA
| | - Yueran Gu
- Laser Technologies Group, Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Mechanical Engineering, University of California at Berkeley, Berkeley, CA 94720-1740, USA
| | - Xianglei Mao
- Laser Technologies Group, Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Costas P. Grigoropoulos
- Laser Thermal Laboratory, Department of Mechanical Engineering, University of California at Berkeley, Berkeley, CA 94720-1740, USA
- Department of Mechanical Engineering, University of California at Berkeley, Berkeley, CA 94720-1740, USA
| | - Vassilia Zorba
- Laser Technologies Group, Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Mechanical Engineering, University of California at Berkeley, Berkeley, CA 94720-1740, USA
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7
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Tian F, Li M, Wu S, Li L, Hu H. A hybrid and scalable nanofabrication approach for bio-inspired bactericidal silicon nanospike surfaces. Colloids Surf B Biointerfaces 2023; 222:113092. [PMID: 36577343 DOI: 10.1016/j.colsurfb.2022.113092] [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: 08/02/2022] [Revised: 11/27/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022]
Abstract
Insects and plants exhibit bactericidal properties through surface nanostructures, such as nanospikes, which physically kill bacteria without antibiotics or chemicals. This is a promising new avenue for achieving antibacterial surfaces. However, the existing methods for fabricating nanospikes are incapable of producing uniform nanostructures on a large scale and in a cost-effective manner. In this paper, a scalable nanofabrication method involving the application of nanosphere lithography and reactive ion etching for constructing nanospike surfaces is demonstrated. Low-cost silicon nanospikes with uniform spacing that were sized similarly to biological nanospikes on cicada wings with a 4-inch wafer scale were fabricated. The spacing, tip radius, and base diameter of the silicon nanospikes were controlled precisely by adjusting the nanosphere diameters, etching conditions, and diameter reduction. The bactericidal properties of the silicon nanospikes with 300 nm spacing were measured quantitatively using the standard viability plate count method; they killed E. coli cells with 59 % efficiency within 30 h. The antibacterial ability of the nanospike surface was further indicated by the morphological differences between bacteria observed in the scanning electron microscopic images as well as the live/dead stains of fluorescence signals. The fabrication process combined the advantages of both top-down and bottom-up methods and was a significant step toward affordable bio-inspired antibacterial surfaces.
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Affiliation(s)
- Feng Tian
- ZJUI Institute, International Campus, Zhejiang University, State Key laboratory of Fluidic Power & Mechanical Systems, Haining 314400, China; School of Micro-Nano Electronics, Zhejiang University, Hangzhou 310027 China
| | - Meixi Li
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shaoxiong Wu
- ZJUI Institute, International Campus, Zhejiang University, State Key laboratory of Fluidic Power & Mechanical Systems, Haining 314400, China; School of Micro-Nano Electronics, Zhejiang University, Hangzhou 310027 China
| | - Lei Li
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Huan Hu
- ZJUI Institute, International Campus, Zhejiang University, State Key laboratory of Fluidic Power & Mechanical Systems, Haining 314400, China; School of Micro-Nano Electronics, Zhejiang University, Hangzhou 310027 China.
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8
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Ahuja R, Gaddam A, Joshi SS, Agrawal A. Characterization of the Liquid–Lubricant Interface in a Dovetail Cavity for a Viscous Laminar Flow. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c02874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Ratan Ahuja
- Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Anvesh Gaddam
- Department of Mechanical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Suhas S. Joshi
- Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India
- Department of Mechanical Engineering, Indian Institute of Technology Indore, Indore 453552, India
| | - Amit Agrawal
- Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India
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9
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Yi P, Jia H, Yang X, Fan Y, Xu S, Li J, Lv M, Chang Y. Anti-biofouling properties of TiO2 coating with coupled effect of photocatalysis and microstructure. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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Zhang Q, Guan Y. Review: Application of metal additive manufacturing in oral dentistry. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2022. [DOI: 10.1016/j.cobme.2022.100441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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11
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Sanyal S, Kim T, Chelliah R, Oh DH, Pham DP, Yi J. Fabrication of Hierarchical Patterned Surfaces Using a Functionalized CeO 2-EPDM Composite for Crevice Corrosion Prevention on High-Voltage Insulators. ACS OMEGA 2022; 7:40920-40928. [PMID: 36406536 PMCID: PMC9670377 DOI: 10.1021/acsomega.2c03955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 09/02/2022] [Indexed: 06/16/2023]
Abstract
Crevice corrosion accounts for 62% of the recorded breakdown of insulators utilized in transmission lines, which may interfere with the reliability of power utilities. To address these challenges, sustainable and resilient slippery lubricant-infused porous surfaces (SLIPS) are developed on insulators to prevent electrochemically/biochemically induced crevice corrosion especially occurring in tropical and coastal environments. The conventional way of developing SLIPS by chemical and physical etching might interfere with the mechanical stability of insulators composed of pin (galvanized steel), cement, and shell (porcelain). The current study proposes a noble concept of developing hierarchical patterned textured surfaces on insulators to fabricate a resilient SLIPS coating without physical/chemical etching. The proposed coating exhibits 99% antiadhesion performance against a mixed culture of bacterial strains, superior hydrophobicity (contact angle: 160°, contact angle hysteresis: 4°), and crevice corrosion resistance performance at elevated temperatures (25-75 °C) and humidity. This study could facilitate a new route for the development of sustainable and highly reliable SLIPS coatings in the future.
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Affiliation(s)
- Simpy Sanyal
- Department
of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Taeyong Kim
- Department
of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Ramachandran Chelliah
- Department
of Food Science and Biotechnology, College of Agriculture and Life
Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea
- Kangwon
Institute of Inclusive Technology (KIIT), Kangwon National University, Chuncheon 24341, Korea
- Saveetha
School of Engineering, (SIMATS) University, Tamil Nadu 600124, India
| | - Deog-Hwan Oh
- Department
of Food Science and Biotechnology, College of Agriculture and Life
Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Duy Phong Pham
- Department
of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Junsin Yi
- College
of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
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12
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Yang X, Guo J, Hu B, Li Z, Wu M, Guo H, Huang X, Liu X, Guo X, Liu P, Chen Y, Li S, Gu Y, Wu H, Xuan K, Yang P. Amyloid-Mediated Remineralization in Pit and Fissure for Caries Preventive Therapy. Adv Healthc Mater 2022; 11:e2200872. [PMID: 35869581 DOI: 10.1002/adhm.202200872] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/18/2022] [Indexed: 01/27/2023]
Abstract
The pits and fissures of teeth have high caries susceptibility, and sealing these areas is considered as an effective method to prevent caries. However, long-term caries prophylaxis cannot be maintained because of the negative effects derived from the technical sensitivity and disadvantages of sealing materials. Herein, a new strategy is proposed to occlude fossae by amyloid-mediated biomimetic remineralization. In contrast to conventional inward blocking from the outside of fossae, amyloid-mediated biomimetic mineralization delivers an amyloid-like protein nanofilm into the deepest zone of the fossae and induces the formation of remineralized enamel inside. Such assembly from lysozyme conjugated with poly (ethylene glycol) enriches the interface with strongly bonded ionsand directs in situ nucleation to achieve enamel epitaxial growth. Not only is the structure of the enamel-like crystalline hydroxyapatite layer but also its mechanical stability is similar to that of natural enamel. Furthermore, the layer shows good biocompatibility and antibacterial properties. On the basis of the findings, it is demonstrated that amyloid-like protein aggregation may provide an enamel remineralization strategy to modify the current clinically available methods of pit and fissure sealing and shows great promise in preventing caries.
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Affiliation(s)
- Xiaoxue Yang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Jing Guo
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Bowen Hu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Zihan Li
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Meiling Wu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Hao Guo
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Xiaoyao Huang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Xuemei Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Xiaohe Guo
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Peisheng Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yuan Chen
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Shijie Li
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yang Gu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Hong Wu
- School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Kun Xuan
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Peng Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
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13
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Karkantonis T, Gaddam A, Sharma H, Cummins G, See TL, Dimov S. Laser-Enabled Surface Treatment of Disposable Endoscope Lens with Superior Antifouling and Optical Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:11392-11405. [PMID: 36069741 PMCID: PMC9494739 DOI: 10.1021/acs.langmuir.2c01671] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 08/20/2022] [Indexed: 06/15/2023]
Abstract
Endoscopes are ubiquitous in minimally invasive or keyhole surgeries globally. However, frequent removal of endoscopes from the patient's body due to the lens contaminations results in undesirable consequences. Therefore, a cost-effective process chain to fabricate thermoplastic-based endoscope lenses with superior antifouling and optical properties is proposed in this research. Such multifunctional surface response was achieved by lubricant impregnation of nanostructures. Two types of topographies were produced by femtosecond laser processing of metallic molds, especially to produce single-tier laser-induced periodic surface structures (LIPSS) and two-tier multiscale structures (MS). Then, these two LIPSS and MS masters were used to replicate them onto two thermoplastic substrates, namely polycarbonate and cyclic olefin copolymer, by using hot embossing. Finally, the LIPSS and MS surfaces of the replicas were infiltrated by silicone oils to prepare lubricant-impregnated surfaces (LIS). Droplet sliding tests revealed that the durability of the as-prepared LIS improved with the increase of the lubricant viscosity. Moreover, the single-tier LIPSS replicas exhibited longer-lasting lubricant conservation properties than the MS ones. Also, LIPSS-LIS replicas demonstrated an excellent optical transparency, better than the MS-LIS ones, and almost match the performance of the reference polished ones. Furthermore, the LIPSS-LIS treatment led to superior antifouling characteristics, i.e., regarding fogging, blood adhesion, protein adsorption, and microalgae attachment, and thus demonstrated its high suitability for treating endoscopic lenses. Finally, a proof-of-concept LIPSS-LIS treatment of endoscope lenses was conducted that confirmed their superior multifunctional response.
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Affiliation(s)
- Themistoklis Karkantonis
- Department
of Mechanical Engineering, School of Engineering, The University of Birmingham, Birmingham B15 2TT, U.K.
| | - Anvesh Gaddam
- Department
of Mechanical Engineering, School of Engineering, The University of Birmingham, Birmingham B15 2TT, U.K.
| | - Himani Sharma
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, Notre
Dame, Indiana 46556, United States
| | - Gerard Cummins
- Department
of Mechanical Engineering, School of Engineering, The University of Birmingham, Birmingham B15 2TT, U.K.
| | - Tian Long See
- The
Manufacturing Technology Centre Ltd., Coventry CV7 9JU, U.K.
| | - Stefan Dimov
- Department
of Mechanical Engineering, School of Engineering, The University of Birmingham, Birmingham B15 2TT, U.K.
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14
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He Z, Yang X, Mu L, Wang N, Lan X. A versatile "3M" methodology to obtain superhydrophobic PDMS-based materials for antifouling applications. Front Bioeng Biotechnol 2022; 10:998852. [PMID: 36105602 PMCID: PMC9464926 DOI: 10.3389/fbioe.2022.998852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
Fouling, including inorganic, organic, bio-, and composite fouling seriously affects our daily life. To reduce these effects, antifouling strategies including fouling resistance, release, and degrading, have been proposed. Superhydrophobicity, the most widely used characteristic for antifouling that relies on surface wettability, can provide surfaces with antifouling abilities owing to its fouling resistance and/or release effects. PDMS shows valuable and wide applications in many fields, and due to the inherent hydrophobicity, superhydrophobicity can be achieved simply by roughening the surface of pure PDMS or its composites. In this review, we propose a versatile "3M" methodology (materials, methods, and morphologies) to guide the fabrication of superhydrophobic PDMS-based materials for antifouling applications. Regarding materials, pure PDMS, PDMS with nanoparticles, and PDMS with other materials were introduced. The available methods are discussed based on the different materials. Materials based on PDMS with nanoparticles (zero-, one-, two-, and three-dimensional nanoparticles) are discussed systematically as typical examples with different morphologies. Carefully selected materials, methods, and morphologies were reviewed in this paper, which is expected to be a helpful reference for future research on superhydrophobic PDMS-based materials for antifouling applications.
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Affiliation(s)
- Zhoukun He
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
| | - Xiaochen Yang
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Linpeng Mu
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Na Wang
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Xiaorong Lan
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, China
- Institute of Stomatology, Southwest Medical University, Luzhou, China
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15
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Masato D, Piccolo L, Lucchetta G, Sorgato M. Texturing Technologies for Plastics Injection Molding: A Review. MICROMACHINES 2022; 13:mi13081211. [PMID: 36014132 PMCID: PMC9416373 DOI: 10.3390/mi13081211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/19/2022] [Accepted: 07/25/2022] [Indexed: 12/04/2022]
Abstract
Texturing is an engineering technology that can be used to enable surface functionalization in the plastics injection molding industry. A texture is defined as the geometrical modification of the topography by addition of surface features that are characterized by a smaller scale than the overall surface dimensions. Texturing is added to products to create novel functionalities of plastic products and tools, which can be exploited to modify interactions with other materials in contact with the surface. The geometry, dimensions, and positioning on the surface define the function of a texture and its properties. This work reviews and discuss the wide range of texturing technologies available in the industry. The advantages and limitations of each technology are presented to support the development of new surface engineering applications in the plastics manufacturing industry.
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Affiliation(s)
- Davide Masato
- Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA
- Correspondence: ; Tel.: +1-(978)-934-2836
| | - Leonardo Piccolo
- Department of Industrial Engineering, University of Padova, 35131 Padova, Italy; (L.P.); (G.L.); (M.S.)
| | - Giovanni Lucchetta
- Department of Industrial Engineering, University of Padova, 35131 Padova, Italy; (L.P.); (G.L.); (M.S.)
| | - Marco Sorgato
- Department of Industrial Engineering, University of Padova, 35131 Padova, Italy; (L.P.); (G.L.); (M.S.)
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16
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Filipov E, Angelova L, Vig S, Fernandes MH, Moreau G, Lasgorceix M, Buchvarov I, Daskalova A. Investigating Potential Effects of Ultra-Short Laser-Textured Porous Poly-ε-Caprolactone Scaffolds on Bacterial Adhesion and Bone Cell Metabolism. Polymers (Basel) 2022; 14:polym14122382. [PMID: 35745958 PMCID: PMC9227156 DOI: 10.3390/polym14122382] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/04/2022] [Accepted: 06/10/2022] [Indexed: 12/01/2022] Open
Abstract
Developing antimicrobial surfaces that combat implant-associated infections while promoting host cell response is a key strategy for improving current therapies for orthopaedic injuries. In this paper, we present the application of ultra-short laser irradiation for patterning the surface of a 3D biodegradable synthetic polymer in order to affect the adhesion and proliferation of bone cells and reject bacterial cells. The surfaces of 3D-printed polycaprolactone (PCL) scaffolds were processed with a femtosecond laser (λ = 800 nm; τ = 130 fs) for the production of patterns resembling microchannels or microprotrusions. MG63 osteoblastic cells, as well as S. aureus and E. coli, were cultured on fs-laser-treated samples. Their attachment, proliferation, and metabolic activity were monitored via colorimetric assays and scanning electron microscopy. The microchannels improved the wettability, stimulating the attachment, spreading, and proliferation of osteoblastic cells. The same topography induced cell-pattern orientation and promoted the expression of alkaline phosphatase in cells growing in an osteogenic medium. The microchannels exerted an inhibitory effect on S. aureus as after 48 h cells appeared shrunk and disrupted. In comparison, E. coli formed an abundant biofilm over both the laser-treated and control samples; however, the film was dense and adhesive on the control PCL but unattached over the microchannels.
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Affiliation(s)
- Emil Filipov
- Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Shousse Blvd., 1784 Sofia, Bulgaria; (L.A.); (A.D.)
- Correspondence:
| | - Liliya Angelova
- Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Shousse Blvd., 1784 Sofia, Bulgaria; (L.A.); (A.D.)
| | - Sanjana Vig
- Faculdade de Medicina Dentaria, Universidade do Porto, Rua Dr. Manuel Pereira da Silva, 4200-393 Porto, Portugal; (S.V.); (M.H.F.)
- LAQV/REQUIMTE, University of Porto, 4160-007 Porto, Portugal
| | - Maria Helena Fernandes
- Faculdade de Medicina Dentaria, Universidade do Porto, Rua Dr. Manuel Pereira da Silva, 4200-393 Porto, Portugal; (S.V.); (M.H.F.)
- LAQV/REQUIMTE, University of Porto, 4160-007 Porto, Portugal
| | - Gerard Moreau
- Laboratoire des Matériaux Céramiques et Procédés Associés, Université Polytechnique Hauts-de-France, INSA Hauts-de-France, CERAMATHS, F-59313 Valenciennes, France; (G.M.); (M.L.)
| | - Marie Lasgorceix
- Laboratoire des Matériaux Céramiques et Procédés Associés, Université Polytechnique Hauts-de-France, INSA Hauts-de-France, CERAMATHS, F-59313 Valenciennes, France; (G.M.); (M.L.)
| | - Ivan Buchvarov
- Faculty of Physics, St. Kliment Ohridski University of Sofia, 5 James Bourchier Blvd., 1164 Sofia, Bulgaria;
| | - Albena Daskalova
- Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Shousse Blvd., 1784 Sofia, Bulgaria; (L.A.); (A.D.)
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17
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Self-Cleaning Biomimetic Surfaces-The Effect of Microstructure and Hydrophobicity on Conidia Repellence. MATERIALS 2022; 15:ma15072526. [PMID: 35407860 PMCID: PMC9000080 DOI: 10.3390/ma15072526] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/21/2022] [Accepted: 03/24/2022] [Indexed: 01/11/2023]
Abstract
Modification of surface structure for the promotion of food safety and health protection is a technology of interest among many industries. With this study, we aimed specifically to develop a tenable solution for the fabrication of self-cleaning biomimetic surface structures for agricultural applications such as post-harvest packing materials and greenhouse cover screens. Phytopathogenic fungi such as Botrytiscinerea are a major concern for agricultural systems. These molds are spread by airborne conidia that contaminate surfaces and infect plants and fresh produce, causing significant losses. The research examined the adhesive role of microstructures of natural and synthetic surfaces and assessed the feasibility of structured biomimetic surfaces to easily wash off fungal conidia. Soft lithography was used to create polydimethylsiloxane (PDMS) replications of Solanum lycopersicum (tomato) and Colocasia esculenta (elephant ear) leaves. Conidia of B. cinerea were applied to natural surfaces for a washing procedure and the ratios between applied and remaining conidia were compared using microscopy imaging. The obtained results confirmed the hypothesis that the dust-repellent C. esculenta leaves have a higher conidia-repellency compared to tomato leaves which are known for their high sensitivities to phytopathogenic molds. This study found that microstructure replication does not mimic conidia repellency found in nature and that conidia repellency is affected by a mix of parameters, including microstructure and hydrophobicity. To examine the effect of hydrophobicity, the study included measurements and analyses of apparent contact angles of natural and synthetic surfaces including activated (hydrophilic) surfaces. No correlation was found between the surface apparent contact angle and conidia repellency ability, demonstrating variation in washing capability correlated to microstructure and hydrophobicity. It was also found that a microscale sub-surface (tomato trichromes) had a high conidia-repelling capability, demonstrating an important role of non-superhydrophobic microstructures.
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18
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MacLachlan R, Vahedi F, Imani SM, Ashkar AA, Didar TF, Soleymani L. Pathogen-Repellent Plastic Warp with Built-In Hierarchical Structuring Prevents the Contamination of Surfaces with Coronaviruses. ACS APPLIED MATERIALS & INTERFACES 2022; 14:11068-11077. [PMID: 35225604 PMCID: PMC8903211 DOI: 10.1021/acsami.1c21476] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
Amidst the COVID-19 pandemic, it is evident that viral spread is mediated through several different transmission pathways. Reduction of these transmission pathways is urgently needed to control the spread of viruses between infected and susceptible individuals. Herein, we report the use of pathogen-repellent plastic wraps (RepelWrap) with engineered surface structures at multiple length scales (nanoscale to microscale) as a means of reducing the indirect contact transmission of viruses through fomites. To quantify viral repellency, we developed a touch-based viral quantification assay to mimic the interaction of a contaminated human touch with a surface through the modification of traditional viral quantification methods (viral plaque and TCID50 assays). These studies demonstrate that RepelWrap reduced contamination with an enveloped DNA virus as well as the human coronavirus 229E (HuCoV-229E) by more than 4 log 10 (>99.99%) compared to a standard commercially available polyethylene plastic wrap. In addition, RepelWrap maintained its repellent properties after repeated 300 touches and did not show an accumulation in viral titer after multiple contacts with contaminated surfaces, while increases were seen on other commonly used surfaces. These findings show the potential use of repellent surfaces in reducing viral contamination on surfaces, which could, in turn, reduce the surface-based spread and transmission.
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Affiliation(s)
- Roderick MacLachlan
- Department
of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - Fatemeh Vahedi
- Department
of Medicine, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - Sara M. Imani
- School
of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - Ali A. Ashkar
- Department
of Medicine, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
- McMaster
Immunology Research Center, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - Tohid F. Didar
- School
of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
- Department
of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S4L7, Canada
- Michael G.
DeGroote Institute of Infectious Disease Research, McMaster University, 1280 Main Street West, Hamilton, Ontario L8N 3Z5, Canada
| | - Leyla Soleymani
- Department
of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
- School
of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
- Michael G.
DeGroote Institute of Infectious Disease Research, McMaster University, 1280 Main Street West, Hamilton, Ontario L8N 3Z5, Canada
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19
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He Z, Yang X, Wang N, Mu L, Pan J, Lan X, Li H, Deng F. Anti-Biofouling Polymers with Special Surface Wettability for Biomedical Applications. Front Bioeng Biotechnol 2021; 9:807357. [PMID: 34950651 PMCID: PMC8688920 DOI: 10.3389/fbioe.2021.807357] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 11/22/2021] [Indexed: 12/02/2022] Open
Abstract
The use of anti-biofouling polymers has widespread potential for counteracting marine, medical, and industrial biofouling. The anti-biofouling action is usually related to the degree of surface wettability. This review is focusing on anti-biofouling polymers with special surface wettability, and it will provide a new perspective to promote the development of anti-biofouling polymers for biomedical applications. Firstly, current anti-biofouling strategies are discussed followed by a comprehensive review of anti-biofouling polymers with specific types of surface wettability, including superhydrophilicity, hydrophilicity, and hydrophobicity. We then summarize the applications of anti-biofouling polymers with specific surface wettability in typical biomedical fields both in vivo and in vitro, such as cardiology, ophthalmology, and nephrology. Finally, the challenges and directions of the development of anti-biofouling polymers with special surface wettability are discussed. It is helpful for future researchers to choose suitable anti-biofouling polymers with special surface wettability for specific biomedical applications.
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Affiliation(s)
- Zhoukun He
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
| | - Xiaochen Yang
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Na Wang
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Linpeng Mu
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Jinyuan Pan
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Xiaorong Lan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Hongmei Li
- School of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Fei Deng
- Department of Nephrology, Jinniu Hospital of Sichuan Provincial People’s Hospital and Chengdu Jinniu District People’s Hospital, Chengdu, China
- Department of Nephrology, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
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20
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Nasri N, Rusli A, Teramoto N, Jaafar M, Ku Ishak KM, Shafiq MD, Abdul Hamid ZA. Past and Current Progress in the Development of Antiviral/Antimicrobial Polymer Coating towards COVID-19 Prevention: A Review. Polymers (Basel) 2021; 13:4234. [PMID: 34883737 PMCID: PMC8659939 DOI: 10.3390/polym13234234] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/04/2021] [Accepted: 11/08/2021] [Indexed: 01/10/2023] Open
Abstract
The astonishing outbreak of SARS-CoV-2 coronavirus, known as COVID-19, has attracted numerous research interests, particularly regarding fabricating antimicrobial surface coatings. This initiative is aimed at overcoming and minimizing viral and bacterial transmission to the human. When contaminated droplets from an infected individual land onto common surfaces, SARS-CoV-2 coronavirus is able to survive on various surfaces for up to 9 days. Thus, the possibility of virus transmission increases after touching or being in contact with contaminated surfaces. Herein, we aim to provide overviews of various types of antiviral and antimicrobial coating agents, such as antimicrobial polymer-based coating, metal-based coating, functional nanomaterial, and nanocomposite-based coating. The action mode for each type of antimicrobial agent against pathogens is elaborated. In addition, surface properties of the designed antiviral and antimicrobial polymer coating with their influencing factors are discussed in this review. This paper also exhibits several techniques on surface modification to improve surface properties. Various developed research on the development of antiviral/antimicrobial polymer coating to curb the COVID-19 pandemic are also presented in this review.
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Affiliation(s)
- Nazihah Nasri
- School of Materials & Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal 14300, Pulau Pinang, Malaysia; (N.N.); (A.R.); (M.J.); (K.M.K.I.); (M.D.S.)
| | - Arjulizan Rusli
- School of Materials & Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal 14300, Pulau Pinang, Malaysia; (N.N.); (A.R.); (M.J.); (K.M.K.I.); (M.D.S.)
| | - Naozumi Teramoto
- Department of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino 275-0016, Chiba, Japan;
| | - Mariatti Jaafar
- School of Materials & Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal 14300, Pulau Pinang, Malaysia; (N.N.); (A.R.); (M.J.); (K.M.K.I.); (M.D.S.)
| | - Ku Marsilla Ku Ishak
- School of Materials & Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal 14300, Pulau Pinang, Malaysia; (N.N.); (A.R.); (M.J.); (K.M.K.I.); (M.D.S.)
| | - Mohamad Danial Shafiq
- School of Materials & Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal 14300, Pulau Pinang, Malaysia; (N.N.); (A.R.); (M.J.); (K.M.K.I.); (M.D.S.)
| | - Zuratul Ain Abdul Hamid
- School of Materials & Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal 14300, Pulau Pinang, Malaysia; (N.N.); (A.R.); (M.J.); (K.M.K.I.); (M.D.S.)
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21
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Wan Z, Azam MS, Wyatt S, Ramsay K, Korner JL, Elvira KS, Padmawar R, Varela D, Hore DK. Algae Adhesion onto Silicone is Sensitive to Environment-Induced Surface Restructuring. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:9597-9604. [PMID: 34328000 DOI: 10.1021/acs.langmuir.1c01493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Resistance to algae contamination is an important characteristic of insulators used in overhead power distribution in coastal environments. It is therefore important to understand the parameters governing algae adhesion onto polymer insulator materials such as silicone. Flow cell-based shear experiments were conducted in order to characterize the adhesion strength of algae onto polydimethylsiloxane surfaces, comparing fresh polymer substrates with those that have been soaked in water and saline solutions for 1 month. Both freshwater algae and seawater species could withstand considerably less drag force and were therefore more easily removed when the polymer was soaked in salt water. The polymer surface was found to be unaltered in terms of its roughness, contact angle, and lack of water uptake; no macroscopic surface characterization was therefore able to account for the differences in cell adhesion strength resulting from the soaking treatment. Surface-specific nonlinear vibrational spectroscopy, however, revealed subtle differences in the orientation of surface methyl groups that resulted from the water and saline exposure.
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Affiliation(s)
- Zhijing Wan
- Department of Chemistry, University of Victoria, Victoria V8W 3V6, British Columbia, Canada
| | - Md Shafiul Azam
- Department of Chemistry, University of Victoria, Victoria V8W 3V6, British Columbia, Canada
| | - Shea Wyatt
- Department of Biology, University of Victoria, Victoria V8W 2Y2, British Columbia, Canada
| | - Kaitlyn Ramsay
- Department of Chemistry, University of Victoria, Victoria V8W 3V6, British Columbia, Canada
| | - Jaime L Korner
- Department of Chemistry, University of Victoria, Victoria V8W 3V6, British Columbia, Canada
| | - Katherine S Elvira
- Department of Chemistry, University of Victoria, Victoria V8W 3V6, British Columbia, Canada
| | - Rajkumar Padmawar
- ASAsoft (Canada) Inc., 179-2945 Jacklin Road Suite 221, Victoria V9B 6J9, British Columbia, Canada
| | - Diana Varela
- Department of Biology, University of Victoria, Victoria V8W 2Y2, British Columbia, Canada
- School of Earth and Ocean Sciences, University of Victoria, Victoria V8W 2Y2, British Columbia, Canada
| | - Dennis K Hore
- Department of Chemistry, University of Victoria, Victoria V8W 3V6, British Columbia, Canada
- Department of Computer Science, University of Victoria, Victoria V8W 3P6, British Columbia, Canada
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22
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Chatterjee S, Murallidharan JS, Agrawal A, Bhardwaj R. Designing antiviral surfaces to suppress the spread of COVID-19. PHYSICS OF FLUIDS (WOODBURY, N.Y. : 1994) 2021; 33:052101. [PMID: 34040336 PMCID: PMC8142823 DOI: 10.1063/5.0049404] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 03/23/2021] [Indexed: 05/18/2023]
Abstract
Surface engineering is an emerging technology to design antiviral surfaces, especially in the wake of COVID-19 pandemic. However, there is yet no general understanding of the rules and optimized conditions governing the virucidal properties of engineered surfaces. The understanding is crucial for designing antiviral surfaces. Previous studies reported that the drying time of a residual thin-film after the evaporation of a bulk respiratory droplet on a smooth surface correlates with the coronavirus survival time. Recently, we [Chatterjee et al., Phys. Fluids. 33, 021701 (2021)] showed that the evaporation is much faster on porous than impermeable surfaces, making the porous surfaces lesser susceptible to virus survival. The faster evaporation on porous surfaces was attributed to an enhanced disjoining pressure within the thin-film due the presence of horizontally oriented fibers and void spaces. Motivated by this, we explore herein the disjoining pressure-driven thin-film evaporation mechanism and thereby the virucidal properties of engineered surfaces with varied wettability and texture. A generic model is developed which agrees qualitatively well with the previous virus titer measurements on nanostructured surfaces. Thereafter, we design model surfaces and report the optimized conditions for roughness and wettability to achieve the most prominent virucidal effect. We have deciphered that the optimized thin-film lifetime can be gained by tailoring wettability and roughness, irrespective of the nature of texture geometry. The present study expands the applicability of the process and demonstrates ways to design antiviral surfaces, thereby aiding to mitigate the spread of COVID-19.
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Affiliation(s)
- Sanghamitro Chatterjee
- Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India
| | | | - Amit Agrawal
- Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Rajneesh Bhardwaj
- Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India
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23
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Zheng S, Bawazir M, Dhall A, Kim HE, He L, Heo J, Hwang G. Implication of Surface Properties, Bacterial Motility, and Hydrodynamic Conditions on Bacterial Surface Sensing and Their Initial Adhesion. Front Bioeng Biotechnol 2021; 9:643722. [PMID: 33644027 PMCID: PMC7907602 DOI: 10.3389/fbioe.2021.643722] [Citation(s) in RCA: 228] [Impact Index Per Article: 76.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 01/25/2021] [Indexed: 12/29/2022] Open
Abstract
Biofilms are structured microbial communities attached to surfaces, which play a significant role in the persistence of biofoulings in both medical and industrial settings. Bacteria in biofilms are mostly embedded in a complex matrix comprised of extracellular polymeric substances that provide mechanical stability and protection against environmental adversities. Once the biofilm is matured, it becomes extremely difficult to kill bacteria or mechanically remove biofilms from solid surfaces. Therefore, interrupting the bacterial surface sensing mechanism and subsequent initial binding process of bacteria to surfaces is essential to effectively prevent biofilm-associated problems. Noting that the process of bacterial adhesion is influenced by many factors, including material surface properties, this review summarizes recent works dedicated to understanding the influences of surface charge, surface wettability, roughness, topography, stiffness, and combination of properties on bacterial adhesion. This review also highlights other factors that are often neglected in bacterial adhesion studies such as bacterial motility and the effect of hydrodynamic flow. Lastly, the present review features recent innovations in nanotechnology-based antifouling systems to engineer new concepts of antibiofilm surfaces.
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Affiliation(s)
- Sherry Zheng
- Department of Preventive & Restorative Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Marwa Bawazir
- Department of Preventive & Restorative Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Atul Dhall
- Department of Preventive & Restorative Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Hye-Eun Kim
- Department of Preventive & Restorative Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Le He
- Department of Preventive & Restorative Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Joseph Heo
- Department of Preventive & Restorative Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Geelsu Hwang
- Department of Preventive & Restorative Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Center for Innovation & Precision Dentistry, School of Dental Medicine, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, United States
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Siddiquie RY, Agrawal A, Joshi SS. Surface Alterations to Impart Antiviral Properties to Combat COVID-19 Transmission. TRANSACTIONS OF THE INDIAN NATIONAL ACADEMY OF ENGINEERING : AN INTERNATIONAL JOURNAL OF ENGINEERING AND TECHNOLOGY 2020; 5:343-347. [PMID: 38624346 PMCID: PMC7223978 DOI: 10.1007/s41403-020-00096-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 04/29/2020] [Indexed: 02/05/2023]
Abstract
A global epidemic caused by highly transmittable COVID-19 is causing severe loss of human life. In this study, two aspects of reducing transmission of COVID-19 virus, due to surface contact, are discussed: first refers to the effect of nanocarbon fullerene C60 coating on surface, that causes lipid peroxidation on the phospholipid layer present in the outer envelope of COVID-19; the second aspect refers to creating hydrophobic surfaces by texturing them, so that the contact area between virus and surface is minimized due to the presence of entrapped air between the topographies. These can be similar to micro-/nano-multiscale textured surfaces that have anti-biofouling properties. Fullerene-coated surfaces can be seen as a possible solution to decrease the adhesion of virus on the surface, as they will be hydrophobic as well as toxic to the envelope.
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Affiliation(s)
- Reshma Y. Siddiquie
- Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, 400076 India
| | - Amit Agrawal
- Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, 400076 India
| | - Suhas S. Joshi
- Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, 400076 India
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