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Yeo YH, Jo SK, Kim MH, Lee SJ, Han SY, Park MH, Kim DY, Kim DY, Yoo IH, Kang C, Song JH, Park WH. Fabrication of atelocollagen-coated bioabsorbable suture and the evaluation of its regenerative efficacy in Achilles tendon healing using a rat experimental model. Int J Biol Macromol 2024; 271:132564. [PMID: 38782324 DOI: 10.1016/j.ijbiomac.2024.132564] [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: 04/16/2024] [Revised: 05/18/2024] [Accepted: 05/20/2024] [Indexed: 05/25/2024]
Abstract
Recently, the incidence of Achilles tendon ruptures (ATRs) has become more common, and repair surgery using a bioabsorbable suture is generally preferred, particularly in the case of healthy patients. Sutures composed of poly(lactic-co-glycolic acid) (PLGA) are commonly used in ATR surgeries. Nevertheless, owing to the inherent limitations of PLGA, novel bioabsorbable sutures that can accelerate Achilles tendon healing are sought. Recently, several studies have demonstrated the beneficial effects of atelocollagen on tendon healing. In this study, poly(3,4-dihydroxy-L-phenylalanine) (pDOPA), a hydrophilic biomimetic material, was used to modify the hydrophobic surface of a PLGA suture (Vicryl, VC) for the stable coating of atelocollagen on its surface. The main objective was to fabricate an atelocollagen-coated VC suture and evaluate its performance in the healing of Achilles tendon using a rat model of open repair for ATR. Structural analyses of the surface-modified suture indicated that the collagen was successfully coated on the VC/pDOPA suture. Postoperative in vivo biomechanical analysis, histological evaluation, ultrastructural/morphological analyses, and western blotting confirmed that the tendons in the VC/pDOPA/Col group exhibit superior healing than those in the VC and VC/pDOPA groups after 1 and 6 weeks following the surgery. The this study suggests that atelocollagen-coated PLGA/pDOPA sutures are preferable for future medical applications, especially in the repair of ATR.
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Affiliation(s)
- Yong Ho Yeo
- Department of Organic Materials Engineering, Chungnam National University, Daejeon, Republic of Korea
| | - Seong Kyeong Jo
- Department of Orthopedic Surgery, Konyang University Hospital, Daejeon, Republic of Korea
| | - Min Hee Kim
- Department of Textile Engineering, Kyungpook National University, Republic of Korea
| | - Su Jeong Lee
- R&D planning team, Organoid Sciences Co., Ltd., 331, Pangyo-ro, Bundang-gu, Seongnam-si, Republic of Korea
| | - Seung Yun Han
- Department of Anatomy, College of Medicine, Konyang University, Daejeon, Republic of Korea
| | - Mun Hyang Park
- Department of Pathology, College of Medicine, Konyang University, Daejeon, Republic of Korea
| | - Dae Young Kim
- Department of Pathology, College of Medicine, Konyang University, Daejeon, Republic of Korea
| | - Dae Yeung Kim
- Department of Orthopedic Surgery, Konyang University Hospital, Daejeon, Republic of Korea
| | - In Ha Yoo
- Department of Medical Science, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Chan Kang
- Department of Orthopedic Surgery, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Jae Hwang Song
- Department of Orthopedic Surgery, Konyang University Hospital, Daejeon, Republic of Korea.
| | - Won Ho Park
- Department of Organic Materials Engineering, Chungnam National University, Daejeon, Republic of Korea.
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2
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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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3
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Yang Z, Huang T, Cao P, Cui Y, Nie J, Chen T, Yang H, Wang F, Sun L. Carbonized Silk Nanofibers in Biodegradable, Flexible Temperature Sensors for Extracellular Environments. ACS APPLIED MATERIALS & INTERFACES 2022; 14:18110-18119. [PMID: 35435678 DOI: 10.1021/acsami.2c00384] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Temperature is one of the key parameters for activity of cells. The trade-off between sensitivity and biocompatibility of cell temperature measurement is a challenge for temperature sensor development. Herein, a highly sensitive, biocompatible, and degradable temperature sensor was proposed to detect the living cell extracellular environments. Biocompatible silk materials were applied as sensing and packing layers, which endow the device with biocompatibility, biodegradability, and flexibility. The silk-based temperature sensor presented a sensitivity of 1.75%/°C and a working range of 35-63 °C with the capability to measure the extracellular environments. At the bending state, this sensor worked at promising response of cells at different temperatures. The applications of this developed silk material-based temperature sensor include biological electronic devices for cell manipulation, cell culture, and cellular metabolism.
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Affiliation(s)
- Zhan Yang
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
| | - Ting Huang
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
| | - Peidong Cao
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
| | - Yangchen Cui
- School of Public Health, Medical College of Soochow University, Soochow University, Suzhou 215131, China
| | - Jihua Nie
- School of Public Health, Medical College of Soochow University, Soochow University, Suzhou 215131, China
| | - Tao Chen
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
| | - Hao Yang
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
| | - Fengxia Wang
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
| | - Lining Sun
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
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4
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Guan M, Tang S, Chang H, Chen Y, Chen F, Mu Y, Zhao D, Fan W, Tian H, Darland DC, Zhang Y. Development of alveolar-capillary-exchange (ACE) chip and its application for assessment of PM 2.5-induced toxicity. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 223:112601. [PMID: 34385060 PMCID: PMC8421056 DOI: 10.1016/j.ecoenv.2021.112601] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/17/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Although standard two-dimensional (2D) cell culture is an effective tool for cell studies, monolayer cultivation can yield imperfect or misleading information about numerous biological functions. In this study, we developed an alveolar-capillary exchange (ACE) chip aiming to simulate the cellular microenvironment at the alveolar-capillary interface. The ACE chip was designed with two chambers for culturing alveolar epithelial cells and vascular endothelial cells separately, which are separated by a microporous polycarbonate film that allows for the exchange of soluble biomolecules. Using this model, we further tested the toxic effects of fine particulate matter (PM2.5), a form of airborne pollutant known to induce adverse effects on human respiratory system. These effects are largely associated with the ability of PM2.5 to penetrate the alveoli, where it negatively affects the pulmonary function. Our results indicate that alveolar epithelial cells cultured in the ACE chip in solo and coculture with vascular endothelial cells underwent oxidative injury-induced apoptosis mediated via the PEAK-eIF2α signaling pathway of endoplasmic reticulum stress. The use of ACE chip in an alveolar epithelial cell-vascular endothelial cell coculture model revealed cellular vulnerability to PM2.5. Therefore, this chip provides a feasible surrogate approach in vitro for investigating and simulating the cellular microenvironment responses associated with ACE in vivo.
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Affiliation(s)
- Mingyang Guan
- Shijiazhuang Center for Disease Control and Prevention, Environment and Health Research Base of China Center for Disease Control and Prevention (Shijiazhuang), Shijiazhuang 050011, China
| | - Song Tang
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China; Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Huiyun Chang
- Shijiazhuang Center for Disease Control and Prevention, Environment and Health Research Base of China Center for Disease Control and Prevention (Shijiazhuang), Shijiazhuang 050011, China
| | - Yuanyuan Chen
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - Fengge Chen
- Shijiazhuang Center for Disease Control and Prevention, Environment and Health Research Base of China Center for Disease Control and Prevention (Shijiazhuang), Shijiazhuang 050011, China
| | - Ying Mu
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310058, China
| | - Dong Zhao
- Shijiazhuang Center for Disease Control and Prevention, Environment and Health Research Base of China Center for Disease Control and Prevention (Shijiazhuang), Shijiazhuang 050011, China
| | - Weiwei Fan
- Shijiazhuang Center for Disease Control and Prevention, Environment and Health Research Base of China Center for Disease Control and Prevention (Shijiazhuang), Shijiazhuang 050011, China
| | - Huifang Tian
- Shijiazhuang Center for Disease Control and Prevention, Environment and Health Research Base of China Center for Disease Control and Prevention (Shijiazhuang), Shijiazhuang 050011, China
| | - Diane C Darland
- Biology Department, University of North Dakota, Grand Forks, ND 58202-9019, USA.
| | - Ying Zhang
- Shijiazhuang Center for Disease Control and Prevention, Environment and Health Research Base of China Center for Disease Control and Prevention (Shijiazhuang), Shijiazhuang 050011, China.
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Joseph E, Rajput SS, Patil S, Nisal A. Mechanism of Adhesion of Natural Polymer Coatings to Chemically Modified Siloxane Polymer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:2974-2984. [PMID: 33645228 DOI: 10.1021/acs.langmuir.1c00047] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Surface coatings play an important role in improving the performance of biomedical implants. Polydimethylsiloxane (PDMS) is a commonly used material for biomedical implants, and surface-coated PDMS implants frequently face problems such as delamination or cracking of the coating. In this work, we have measured the performance of nano-coatings of the biocompatible protein polymer silk fibroin (SF) on pristine as well as modified PDMS surfaces. The PDMS surfaces have been modified using oxygen plasma treatment and 3-amino-propyl-triethoxy-silane (APTES) treatment. Although these techniques of PDMS modification have been known, their effects on adhesion of SF nano-coatings have not been studied. Interestingly, testing of the coated samples using a bulk technique such as tensile and bending deformation showed that the SF nano-coating exhibits improved crack resistance when the PDMS surface has been modified using APTES treatment as compared to an oxygen plasma treatment. These results were validated at the microscopic and mesoscopic length scales through nano-scratch and nano-indentation measurements. Further, we developed a unique method using modified atomic force microscopy to measure the adhesive energy between treated PDMS surfaces and SF molecules. These measurements indicated that the adhesive strength of PDMS-APTES-SF is 10 times more compared to PDMS-O2-SF due to the higher number of molecular linkages formed in this nanoscale contact. This lower number of molecular linkages in the PDMS-O2 indicates that only fewer numbers of surface hydroxyl groups interact with the SF protein through secondary interactions such as hydrogen bonding. On the other hand, a larger number of amine groups present on PDMS-APTES surface hydrogen bond with the polar amino acids present on the silk fibroin protein chain, resulting in better adhesion. Thus, APTES modification to the PDMS substrate results in improved adhesion of nano-coating to the substrate and enhances the delamination and crack resistance of the nano-coatings.
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Affiliation(s)
- Emmanuel Joseph
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Shatruhan Singh Rajput
- Center for Energy Science, Department of Physics, Indian Institute of Science Education and Research, Pune 411008 India
| | - Shivprasad Patil
- Center for Energy Science, Department of Physics, Indian Institute of Science Education and Research, Pune 411008 India
| | - Anuya Nisal
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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6
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Primavera R, Razavi M, Kevadiya BD, Wang J, Vykunta A, Di Mascolo D, Decuzzi P, Thakor AS. Enhancing islet transplantation using a biocompatible collagen-PDMS bioscaffold enriched with dexamethasone-microplates. Biofabrication 2021; 13. [PMID: 33455953 DOI: 10.1088/1758-5090/abdcac] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 01/15/2021] [Indexed: 01/01/2023]
Abstract
Islet transplantation is a promising approach to enable type 1 diabetic patients to attain glycemic control independent of insulin injections. However, up to 60% of islets are lost immediately following transplantation. To improve this outcome, islets can be transplanted within bioscaffolds, however, synthetic bioscaffolds induce an intense inflammatory reaction which can have detrimental effects on islet function and survival. In the present study, we first improved the biocompatibility of polydimethylsiloxane (PDMS) bioscaffolds by coating them with collagen. To reduce the inflammatory response to PDMS bioscaffolds, we then enriched the bioscaffolds with dexamethasone-loaded microplates (DEX-µScaffolds). These DEX-microplates have the ability to release DEX in a sustained manner over 7 weeks within a therapeutic range that does not affect the glucose responsiveness of the islets but which minimizes inflammation in the surrounding microenvironment. The bioscaffold showed excellent mechanical properties that enabled it to resist pore collapse thereby helping to facilitate islet seeding and its handling for implantation, and subsequent engraftment, within the epididymal fat pad (EFP). Following the transplantation of islets into the EFP of diabetic mice using DEX-µScaffolds there was a return in basal blood glucose to normal values by day 4, with normoglycemia maintained for 30 days. Furthermore, these animals demonstrated a normal dynamic response to glucose challenges with histological evidence showing reduced pro-inflammatory cytokines and fibrotic tissue surrounding DEX-µScaffolds at the transplantation site. In contrast, diabetic animals transplanted with either islets alone or islets in bioscaffolds without DEX microplates were not able to regain glycemic control during basal conditions with overall poor islet function. Taken together, our data show that coating PDMS bioscaffolds with collagen, and enriching them with DEX-microplates, significantly prolongs and enhances islet function and survival.
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Affiliation(s)
- Rosita Primavera
- Radiology, Stanford University School of Medicine, 3155 Porter Drive, Stanford, California, 94305-5119, UNITED STATES
| | - Mehdi Razavi
- University of Central Florida, 6900 Lake Nona Blvd, Orlando, Florida, 32827, UNITED STATES
| | - Bhavesh D Kevadiya
- PEN, University of Nebraska Medical Center, Lab-3064,DRC-1,department of pharmacology and experimental neuroscience, Omaha, Nebraska, 68198, UNITED STATES
| | - Jing Wang
- Radiology, Stanford University School of Medicine, 3155 Porter Drive, Stanford, California, 94304, UNITED STATES
| | - Akshara Vykunta
- Radiology, Stanford University School of Medicine, 3155 Porter Drive, Stanford, California, 94304, UNITED STATES
| | - Daniele Di Mascolo
- Central Research Labs Genova, Istituto Italiano di Tecnologia, Via Morego, 30, Genova, Liguria, 16163, ITALY
| | - Paolo Decuzzi
- Istituto Italiano di Tecnologia, Via Morego, 30, Genova, Liguria, 16163, ITALY
| | - Avnesh S Thakor
- Radiology, Stanford University School of Medicine, 3155 Porter Drive, Stanford, California, 94304, UNITED STATES
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7
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Tan X, Gao P, Li Y, Qi P, Liu J, Shen R, Wang L, Huang N, Xiong K, Tian W, Tu Q. Poly-dopamine, poly-levodopa, and poly-norepinephrine coatings: Comparison of physico-chemical and biological properties with focus on the application for blood-contacting devices. Bioact Mater 2021; 6:285-296. [PMID: 32913935 PMCID: PMC7451900 DOI: 10.1016/j.bioactmat.2020.06.024] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 06/28/2020] [Accepted: 06/28/2020] [Indexed: 12/21/2022] Open
Abstract
Thanks to its simplicity, versatility, and secondary reactivity, dopamine self-polymerized coatings (pDA) have been widely used in surface modification of biomaterials, but the limitation in secondary molecular grafting and the high roughness restrain their application in some special scenarios. Therefore, some other catecholamine coatings analog to pDA have attracted more and more attention, including the smoother poly-norepinephrine coating (pNE), and the poly-levodopa coating (pLD) containing additional carboxyl groups. However, the lack of a systematic comparison of the properties, especially the biological properties of the above three catecholamine coatings, makes it difficult to give a guiding opinion on the application scenarios of different coatings. Herein, we systematically studied the physical, chemical, and biological properties of the three catecholamine coatings, and explored the feasibility of their application for the modification of biomaterials, especially cardiovascular materials. Among them, the pDA coating was the roughest, with the largest amount of amino and phenolic hydroxyl groups for molecule grafting, and induced the strongest platelet adhesion and activation. The pLD coating was the thinnest and most hydrophilic but triggered the strongest inflammatory response. The pNE coating was the smoothest, with the best hemocompatibility and histocompatibility, and with the strongest cell selectivity of promoting the proliferation of endothelial cells while inhibiting the proliferation of smooth muscle cells. To sum up, the pNE coating may be a better choice for the surface modification of cardiovascular materials, especially those for vascular stents and grafts, but it is still not widely recognized.
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Affiliation(s)
- Xing Tan
- Key Lab of Advanced Technology of Materials of Education Ministry, Southwest Jiaotong University, Chengdu, 610031, China
| | - Peng Gao
- Key Lab of Advanced Technology of Materials of Education Ministry, Southwest Jiaotong University, Chengdu, 610031, China
| | - Yalong Li
- Department of Stem Cell Center, Henan Key Laboratory of Stem Cell Differentiation and Modification, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University, Zhengzhou, Henan, 450003, China
| | - Pengkai Qi
- Key Lab of Advanced Technology of Materials of Education Ministry, Southwest Jiaotong University, Chengdu, 610031, China
| | - Jingxia Liu
- Physical Education Department, Southwest Jiaotong University, Chengdu, 610031, China
| | - Ru Shen
- Key Lab of Advanced Technology of Materials of Education Ministry, Southwest Jiaotong University, Chengdu, 610031, China
| | - Lianghui Wang
- Key Lab of Advanced Technology of Materials of Education Ministry, Southwest Jiaotong University, Chengdu, 610031, China
| | - Nan Huang
- Key Lab of Advanced Technology of Materials of Education Ministry, Southwest Jiaotong University, Chengdu, 610031, China
| | - Kaiqin Xiong
- Key Lab of Advanced Technology of Materials of Education Ministry, Southwest Jiaotong University, Chengdu, 610031, China
| | - Wenjie Tian
- Cardiology Department, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China. 32 West Second Section, First Ring Road, Chengdu 610072, China
| | - Qiufen Tu
- Key Lab of Advanced Technology of Materials of Education Ministry, Southwest Jiaotong University, Chengdu, 610031, China
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8
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Ou X, Xue B, Lao Y, Wutthinitikornkit Y, Tian R, Zou A, Yang L, Wang W, Cao Y, Li J. Structure and sequence features of mussel adhesive protein lead to its salt-tolerant adhesion ability. SCIENCE ADVANCES 2020; 6:6/39/eabb7620. [PMID: 32978166 PMCID: PMC7518861 DOI: 10.1126/sciadv.abb7620] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 08/12/2020] [Indexed: 05/11/2023]
Abstract
Mussels can strongly adhere to hydrophilic minerals in sea habitats by secreting adhesive proteins. The adhesion ability of these proteins is often attributed to the presence of Dopa derived from posttranslational modification of Tyr, whereas the contribution of structural feature is overlooked. It remains largely unknown how adhesive proteins overcome the surface-bound water layer to establish underwater adhesion. Here, we use molecular dynamics simulations to probe the conformations of adhesive protein Pvfp-5β and its salt-tolerant underwater adhesion on superhydrophilic mica. Dopa and positively charged basic residues form pairs, in this intrinsically disordered protein, and these residue pairs can lead to firm surface binding. Our simulations further suggest that the unmodified Tyr shows similar functions on surface adhesion by forming pairing structure with a positively charged residue. We confirm the presence of these residue pairs and verify the strong binding ability of unmodified proteins using nuclear magnetic resonance spectroscopy and lap shear tests.
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Affiliation(s)
- Xinwen Ou
- Zhejiang Province Key Laboratory of Quantum Technology and Device, Institute of Quantitative Biology, Department of Physics, Zhejiang University, Zheda Road 38, Hangzhou 310027, China
| | - Bin Xue
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China
| | - Yichong Lao
- Zhejiang Province Key Laboratory of Quantum Technology and Device, Institute of Quantitative Biology, Department of Physics, Zhejiang University, Zheda Road 38, Hangzhou 310027, China
| | - Yanee Wutthinitikornkit
- Zhejiang Province Key Laboratory of Quantum Technology and Device, Institute of Quantitative Biology, Department of Physics, Zhejiang University, Zheda Road 38, Hangzhou 310027, China
| | - Ranran Tian
- Zhejiang Province Key Laboratory of Quantum Technology and Device, Institute of Quantitative Biology, Department of Physics, Zhejiang University, Zheda Road 38, Hangzhou 310027, China
| | - Aodong Zou
- Zhejiang Province Key Laboratory of Quantum Technology and Device, Institute of Quantitative Biology, Department of Physics, Zhejiang University, Zheda Road 38, Hangzhou 310027, China
| | - Lingyun Yang
- iHuman Institute, Shanghai Tech University, 393 Hua Xia Zhong Road, Shanghai 201210, China
| | - Wei Wang
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China
| | - Yi Cao
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China.
| | - Jingyuan Li
- Zhejiang Province Key Laboratory of Quantum Technology and Device, Institute of Quantitative Biology, Department of Physics, Zhejiang University, Zheda Road 38, Hangzhou 310027, China.
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9
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Yang Y, Ren Z, Zhao S, Guo Z. Robust Superhydrophobic Composite Featuring Three-Dimensional Porous Metal Rubber with an Embedded Carbon Nanofiber Network for Emulsion Separation. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b07053] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Yu Yang
- College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, People’s Republic of China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
| | - Zhiying Ren
- College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, People’s Republic of China
| | - Siyang Zhao
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People’s Republic of China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
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10
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Dai J, Kong N, Lu Y, Yuan Y, Wu Q, Shi M, Zhang S, Wu Y, Peng W, Huang P, Chen X, Gong J, Yao Y. Bioinspired Conical Micropattern Modulates Cell Behaviors. ACS APPLIED BIO MATERIALS 2018; 1:1416-1423. [DOI: 10.1021/acsabm.8b00362] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jing Dai
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
- Shanghai Institute of Ceramics, Chinese Academy of Science, 1295 Dingxi Road, Changning, Shanghai 200050, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Shijingshan, Beijing 100049, China
| | - Na Kong
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Yi Lu
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Yangyang Yuan
- School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Qiong Wu
- Institute of Insect Science, College of Agriculture and Biotechnology, Zhejiang University, 310058 Hangzhou, China
| | - Min Shi
- Institute of Insect Science, College of Agriculture and Biotechnology, Zhejiang University, 310058 Hangzhou, China
| | - Siyi Zhang
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Yuzhe Wu
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Wenbo Peng
- School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Pengyu Huang
- School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Xuexin Chen
- Institute of Insect Science, College of Agriculture and Biotechnology, Zhejiang University, 310058 Hangzhou, China
| | - Jinkang Gong
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Yuan Yao
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
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Cao Q, Wu S, Wang L, Shi X, Li G. Effects of the morphology of sulfobetaine zwitterionic layers grafted onto a silicone surface on improving the hydrophilic stability, anti-bacterial adhesion properties, and biocompatibility. J Appl Polym Sci 2018. [DOI: 10.1002/app.46860] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Qin Cao
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Shuqing Wu
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Liying Wang
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Xuetao Shi
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Guangji Li
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
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12
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Preferential sensing and response to microenvironment stiffness of human dermal fibroblast cultured on protein micropatterns fabricated by 3D multiphoton biofabrication. Sci Rep 2017; 7:12402. [PMID: 28963517 PMCID: PMC5622085 DOI: 10.1038/s41598-017-12604-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 08/31/2017] [Indexed: 11/12/2022] Open
Abstract
While cells are known to sense and respond to their niche including the matrix and the mechanical microenvironment, whether they preferentially sense and react to the stiffness of their microenvironment regardless of its intrinsic material properties is unknown. In this work, protein micropillar arrays with independently controllable stiffness via alterations in pillar height and elastic modulus via laser power used during photochemical cross-linking, were fabricated using a recently developed multiphoton-based 3D protein micro-patterning technology. Human dermal fibroblasts were cultured on these micropillar arrays and the specific interactions between cells and the protein micropatterns particularly on the formation and maturation of the cell-matrix adhesions, were investigated via immunofluorescence staining of the major molecular markers of the adhesions and the measurement of their cluster size, respectively. Our results showed that the cluster size of focal adhesions increased as the stiffness of the micropillar arrays increased, but it was insensitive to the elastic modulus of the protein micropillars that is one of the intrinsic material properties. This finding provides evidence to the notion that cells preferentially sense and react to the stiffness, but not the elastic modulus of their microenvironment.
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13
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Antibacterial and anticancer PDMS surface for mammalian cell growth using the Chinese herb extract paeonol(4-methoxy-2-hydroxyacetophenone). Sci Rep 2016; 6:38973. [PMID: 27941867 PMCID: PMC5150582 DOI: 10.1038/srep38973] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 11/16/2016] [Indexed: 01/06/2023] Open
Abstract
Polydimethylsiloxane (PDMS) is widely used as a cell culture platform to produce micro- and nano-technology based microdevices. However, the native PDMS surface is not suitable for cell adhesion and is always subject to bacterial pollution and cancer cell invasion. Coating the PDMS surface with antibacterial or anticancer materials often causes considerable harm to the non-cancer mammalian cells on it. We have developed a method to fabricate a biocompatible PDMS surface which not only promotes non-cancer mammalian cell growth but also has antibacterial and anticancer activities, by coating the PDMS surface with a Chinese herb extract, paeonol. Coating changes the wettability and the elemental composition of the PDMS surface. Molecular dynamic simulation indicates that the absorption of paeonol onto the PDMS surface is an energy favourable process. The paeonol-coated PDMS surface exhibits good antibacterial activity against both Gram-positive and Gram-negative bacteria. Moreover considerable antibacterial activity is maintained after the coated surface is rinsed or incubated in water. The coated PDMS surface inhibits bacterial growth on the contact surface and promotes non-cancer mammalian cell growth with low cell toxicity; meanwhile the growth of cancer cells is significantly inhibited. Our study will potentially guide PDMS surface modification approaches to produce biomedical devices.
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14
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Xiong X, Wu Z, Pan J, Xue L, Xu Y, Chen H. A facile approach to modify poly(dimethylsiloxane) surfaces via visible light-induced grafting polymerization. J Mater Chem B 2015; 3:629-634. [DOI: 10.1039/c4tb01600a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We have demonstrated a simple and effective approach for the functional surface modification of poly(dimethylsiloxane) (PDMS) via visible light-induced grafting polymerization at room temperature.
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Affiliation(s)
- Xinhong Xiong
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- P. R. China
| | - Zhaoqiang Wu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- P. R. China
| | - Jingjing Pan
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- P. R. China
| | - Lulu Xue
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- P. R. China
| | - Yajun Xu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- P. R. China
| | - Hong Chen
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- P. R. China
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15
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Wu M, He J, Ren X, Cai WS, Fang YC, Feng XZ. Development of functional biointerfaces by surface modification of polydimethylsiloxane with bioactive chlorogenic acid. Colloids Surf B Biointerfaces 2014; 116:700-6. [DOI: 10.1016/j.colsurfb.2013.11.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 11/04/2013] [Accepted: 11/06/2013] [Indexed: 11/28/2022]
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16
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Kalinova R, Mincheva R, Dubois P. Imparting Adhesion Property to Silicone Materials. ACTA ACUST UNITED AC 2014. [DOI: 10.7569/raa.2014.097302] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Bounds CO, Upadhyay J, Totaro N, Thakuri S, Garber L, Vincent M, Huang Z, Hupert M, Pojman JA. Fabrication and characterization of stable hydrophilic microfluidic devices prepared via the in situ tertiary-amine catalyzed Michael addition of multifunctional thiols to multifunctional acrylates. ACS APPLIED MATERIALS & INTERFACES 2013; 5:1643-1655. [PMID: 23406255 DOI: 10.1021/am302544h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In situ tertiary amine-catalyzed thiol-acrylate chemistry was employed to produce hydrophilic microfluidic devices via a soft lithography process. The process involved the Michael addition of a secondary amine to a multifunctional acrylate producing a nonvolatile in situ tertiary amine catalyst/comonomer molecule. The Michael addition of a multifunctional thiol to a multifunctional acrylate was facilitated by the catalytic activity of the in situ catalyst/comonomer. These cost-efficient thiol-acrylate devices were prepared at room temperature, rapidly, and with little equipment. The thiol-acrylate thermoset materials were more natively hydrophilic than the normally employed poly(dimethylsiloxane) (PDMS) thermoset material, and the surface energies were stable compared to PDMS. Because the final chip was self-adhered via a simple chemical process utilizing the same chemistry, and it was naturally hydrophilic, there was no need for expensive instrumentation or complicated methods to "activate" the surface. There was also no need for postprocessing removal of the catalyst as it was incorporated into the polymer network. These bottom-up devices were fabricated to completion proving their validity as microfluidic devices, and the materials were manipulated and characterized via various analyses illustrating the potential diversity and tunability of the devices.
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Affiliation(s)
- Christopher O Bounds
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70303, USA
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