151
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Zhang P, Yang L, Li Q, Wu S, Jia S, Li Z, Zhang Z, Shi L. Ellipsoidal Colloids with a Controlled Surface Roughness via Bioinspired Surface Engineering: Building Blocks for Liquid Marbles and Superhydrophobic Surfaces. ACS APPLIED MATERIALS & INTERFACES 2017; 9:7648-7657. [PMID: 28181430 DOI: 10.1021/acsami.6b16733] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Understanding the important role of the surface roughness of nano/colloidal particles and harnessing them for practical applications need novel strategies to control the particles' surface topology. Although there are many examples of spherical particles with a specific surface roughness, nonspherical ones with similar surface features are rare. The current work reports a one-step, straightforward, and bioinspired surface engineering strategy to prepare ellipsoidal particles with a controlled surface roughness. By manipulating the unique chemistry inherent to the oxidation-induced self-polymerization of dopamine into polydopamine (PDA), PDA coating of polymeric ellipsoids leads to a library of hybrid ellipsoidal particles (PS@PDA) with a surface that decorates with nanoscale PDA protrusions of various densities and sizes. Together with the advantages originated from the anisotropy of ellipsoids and rich chemistry of PDA, such a surface feature endows these particles with some unique properties. Evaporative drying of fluorinated PS@PDA particles produces a homogeneous coating with superhydrophobicity that arises from the two-scale hierarchal structure of microscale interparticle packing and nanoscale roughness of the constituent ellipsoids. Instead of water repelling that occurs for most of the lotus leaf-like superhydrophobic surfaces, such coating exhibits strong water adhesion that is observed with certain species of rose pedals. In addition, the as-prepared hybrid ellipsoids are very efficient in preparing liquid marble-isolated droplets covered with solid particles. Such liquid marbles can be placed onto many surfaces and might be useful for the controllable transport and manipulation of small volumes of liquids.
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Affiliation(s)
- Pengjiao Zhang
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University , Tianjin 300071, China
| | - Lu Yang
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China
| | - Qiang Li
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University , Tianjin 300071, China
| | - Songhai Wu
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China
| | - Shaoyi Jia
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China
| | - Zhanyong Li
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University , Tianjin 300071, China
| | - Zhenkun Zhang
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University , Tianjin 300071, China
| | - Linqi Shi
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University , Tianjin 300071, China
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152
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Zhao S, Song X, Bu X, Zhu C, Wang G, Liao F, Yang S, Wang M. Polydopamine dots as an ultrasensitive fluorescent probe switch for Cr(VI)in vitro. J Appl Polym Sci 2017. [DOI: 10.1002/app.44784] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Shizhen Zhao
- Chemical Synthesis and Pollution Control, Key Laboratory of Sichuan Province, School of Chemistry and Chemical Industry; China West Normal University; Nanchong 637002 China
| | - Xun Song
- Chemical Synthesis and Pollution Control, Key Laboratory of Sichuan Province, School of Chemistry and Chemical Industry; China West Normal University; Nanchong 637002 China
| | - Xiuming Bu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science; Shanghai China
| | - Chong Zhu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science; Shanghai China
| | - Gang Wang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science; Shanghai China
| | - Fang Liao
- Chemical Synthesis and Pollution Control, Key Laboratory of Sichuan Province, School of Chemistry and Chemical Industry; China West Normal University; Nanchong 637002 China
| | - Siwei Yang
- Chemical Synthesis and Pollution Control, Key Laboratory of Sichuan Province, School of Chemistry and Chemical Industry; China West Normal University; Nanchong 637002 China
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science; Shanghai China
| | - Miao Wang
- School of Chemistry and Chemical Engineering; Nantong University; Nantong 226019 China
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153
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Wang JG, Hua X, Li M, Long YT. Mussel-Inspired Polydopamine Functionalized Plasmonic Nanocomposites for Single-Particle Catalysis. ACS APPLIED MATERIALS & INTERFACES 2017; 9:3016-3023. [PMID: 28026160 DOI: 10.1021/acsami.6b14689] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Polydopamine functionalized plasmonic nanocomposites with well-distributed catalytically active small gold nanoislands around large gold core were fabricated without using any chemical reductant or surfactant. The optical properties, surface molecular structures, and ensemble catalytic activity of the gold nanocomposites were investigated by time-of-flight secondary ion mass spectrometry and UV-vis spectroscopy, respectively. Moreover, the considerable catalytic activity of the nanocomposites toward 4-nitrophenol reduction was real time monitored by dark-field spectroscopy techniques at the single-nanoparticle level avoiding averaging effects in bulk systems. According to the obtained plasmonic signals from individual nanocomposites, the electron charging and discharging rates for these nanocomposites during the catalytic process were calculated. Our results offer new insights into the design and synthesis of plasmonic nanocomposites for future catalytic applications as well as a further mechanistic understanding of the electron transfer during the catalytic process at the single-nanoparticle level.
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Affiliation(s)
- Jun-Gang Wang
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, and ‡State Environmental Protection Key Laboratory of Risk Assessment and Control on Chemical Processes, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China
| | - Xin Hua
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, and ‡State Environmental Protection Key Laboratory of Risk Assessment and Control on Chemical Processes, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China
| | - Meng Li
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, and ‡State Environmental Protection Key Laboratory of Risk Assessment and Control on Chemical Processes, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China
| | - Yi-Tao Long
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, and ‡State Environmental Protection Key Laboratory of Risk Assessment and Control on Chemical Processes, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China
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154
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Wang X, Hu W. Polydopamine thin film-assisted patterned chemical bath deposition of ZnO nanorods on arbitrary substrates. CrystEngComm 2017. [DOI: 10.1039/c7ce01318c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Patterned nanostructures tethered on various substrates are of essential importance for both fundamental research and practical application but often require tedious and expensive fabrication procedures.
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Affiliation(s)
- Xuehui Wang
- Institute for Clean Energy & Advanced Materials
- Faculty of Materials and Energy
- Southwest University
- Chongqing 400715
- China
| | - Weihua Hu
- Institute for Clean Energy & Advanced Materials
- Faculty of Materials and Energy
- Southwest University
- Chongqing 400715
- China
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155
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Kang K, Jang H, Kim YK. The influence of polydopamine coating on gold nanorods for laser desorption/ionization time-of-flight mass spectrometric analysis. Analyst 2017; 142:2372-2377. [DOI: 10.1039/c7an00356k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The influence of polydopamine (PD) coating on gold nanorods (GNRs) for laser desorption/ionization mass spectrometry (LDI-MS) analysis was systematically investigated to reveal its role in the LDI-MS analysis process.
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Affiliation(s)
- Kyungtae Kang
- Department of Applied Chemistry
- Kyung Hee University
- Yongin
- South Korea
| | - Hongje Jang
- Department of Chemistry
- Kwangwoon University
- Seoul 139-701
- Korea
| | - Young-Kwan Kim
- Carbon Composite Materials Research Center
- Institute of Advanced Composite Materials
- Korea Institute of Science and Technology
- Wanju-gun
- Korea
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156
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Abstract
Surface functionalization via molecular design has been a key approach to incorporate new functionalities into existing biomaterials for biomedical application. Mussel-inspired polydopamine (PDA) has aroused great interest as a new route to the functionalization of biomaterials, due to its simplicity and material independency in deposition, favorable interactions with cells, and strong reactivity for secondary functionalization. Herein, this review attempts to highlight the recent findings and progress of PDA in bio-surface functionalization for biomedical applications. The efforts made to elucidate the polymerization mechanism, PDA structure, and the preparation parameters have been discussed. Interactions between PDA coatings and the various cell types involved in different biomedical applications including general cell adhesion, bone regeneration, blood compatibility, and antimicrobial activity have also been highlighted. A brief discussion of post-functionalization of PDA and nanostructured PDA is also provided.
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Affiliation(s)
- Y.H. Ding
- Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO 80309, USA
| | - M. Floren
- Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO 80309, USA
- Cardiovascular Pulmonary Research and Developmental Lung Biology Laboratories, University of Colorado Denver, Aurora, CO 80045, USA
| | - W. Tan
- Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO 80309, USA
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157
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Kolewe KW, Dobosz KM, Rieger KA, Chang CC, Emrick T, Schiffman JD. Antifouling Electrospun Nanofiber Mats Functionalized with Polymer Zwitterions. ACS APPLIED MATERIALS & INTERFACES 2016; 8:27585-27593. [PMID: 27669057 PMCID: PMC5382136 DOI: 10.1021/acsami.6b09839] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this study, we exploit the excellent fouling resistance of polymer zwitterions and present electrospun nanofiber mats surface functionalized with poly(2-methacryloyloxyethyl phosphorylcholine) (polyMPC). This zwitterionic polymer coating maximizes the accessibility of the zwitterion to effectively limit biofouling on nanofiber membranes. Two facile, scalable methods yielded a coating on cellulose nanofibers: (i) a two-step sequential deposition featuring dopamine polymerization followed by the physioadsorption of polyMPC, and (ii) a one-step codeposition of polydopamine (PDA) with polyMPC. While the sequential and codeposited nanofiber mat assemblies have an equivalent average fiber diameter, hydrophilic contact angle, surface chemistry, and stability, the topography of nanofibers prepared by codeposition were smoother. Protein and microbial antifouling performance of the zwitterion modified nanofiber mats along with two controls, cellulose (unmodified) and PDA coated nanofiber mats were evaluated by dynamic protein fouling and prolonged bacterial exposure. Following 21 days of exposure to bovine serum albumin, the sequential nanofiber mats significantly resisted protein fouling, as indicated by their 95% flux recovery ratio in a water flux experiment, a 300% improvement over the cellulose nanofiber mats. When challenged with two model microbes Escherichia coli and Staphylococcus aureus for 24 h, both zwitterion modifications demonstrated superior fouling resistance by statistically reducing microbial attachment over the two controls. This study demonstrates that, by decorating the surfaces of chemically and mechanically robust cellulose nanofiber mats with polyMPC, we can generate high performance, free-standing nanofiber mats that hold potential in applications where antifouling materials are imperative, such as tissue engineering scaffolds and water purification technologies.
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Affiliation(s)
- Kristopher W. Kolewe
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003-9303
| | - Kerianne M. Dobosz
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003-9303
| | - Katrina A. Rieger
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003-9303
| | - Chia-Chih Chang
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Massachusetts 01003-9303
| | - Todd Emrick
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Massachusetts 01003-9303
| | - Jessica D. Schiffman
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003-9303
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158
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Ang JM, Du Y, Tay BY, Zhao C, Kong J, Stubbs LP, Lu X. One-Pot Synthesis of Fe(III)-Polydopamine Complex Nanospheres: Morphological Evolution, Mechanism, and Application of the Carbonized Hybrid Nanospheres in Catalysis and Zn-Air Battery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:9265-75. [PMID: 27550631 DOI: 10.1021/acs.langmuir.6b02331] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We report one-pot synthesis of Fe(III)-polydopamine (PDA) complex nanospheres, their structures, morphology evolution, and underlying mechanism. The complex nanospheres were synthesized by introducing ferric ions into the reaction mixture used for polymerization of dopamine. It is verified that both the oxidative polymerization of dopamine and Fe(III)-PDA complexation contribute to the "polymerization" process, in which the ferric ions form coordination bonds with both oxygen and nitrogen, as indicated by X-ray absorption fine-structure spectroscopy. In the "polymerization" process, the morphology of the complex nanostructures is gradually transformed from sheetlike to spherical at the feed Fe(III)/dopamine molar ratio of 1/3. The final size of the complex spheres is much smaller than its neat PDA counterpart. At higher feed Fe(III)/dopamine molar ratios, the final morphology of the "polymerization" products is sheetlike. The results suggest that the formation of spherical morphology is likely to be driven by covalent polymerization-induced decrease of hydrophilic functional groups, which causes reself-assembly of the PDA oligomers to reduce surface area. We also demonstrate that this one-pot synthesis route for hybrid nanospheres enables the facile construction of carbonized PDA (C-PDA) nanospheres uniformly embedded with Fe3O4 nanoparticles of only 3-5 nm in size. The C-PDA/Fe3O4 nanospheres exhibit catalytic activity toward oxygen reduction reaction and deliver a stable discharge voltage for over 200 h when utilized as the cathode in a primary Zn-air battery and are also good recyclable catalyst supports.
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Affiliation(s)
- Jia Ming Ang
- School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798
| | - Yonghua Du
- Institute of Chemical and Engineering Sciences, A*STAR (Agency for Science, Technology and Research) , 1 Pesek Road, Jurong Island, Singapore 627833
| | - Boon Ying Tay
- Institute of Chemical and Engineering Sciences, A*STAR (Agency for Science, Technology and Research) , 1 Pesek Road, Jurong Island, Singapore 627833
| | - Chenyang Zhao
- School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798
| | - Junhua Kong
- School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798
| | - Ludger Paul Stubbs
- Institute of Chemical and Engineering Sciences, A*STAR (Agency for Science, Technology and Research) , 1 Pesek Road, Jurong Island, Singapore 627833
| | - Xuehong Lu
- School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798
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159
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Chen D, Zhao L, Hu W. Protein immobilization and fluorescence quenching on polydopamine thin films. J Colloid Interface Sci 2016; 477:123-30. [PMID: 27254254 DOI: 10.1016/j.jcis.2016.05.042] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 05/22/2016] [Accepted: 05/23/2016] [Indexed: 01/09/2023]
Abstract
Mussel inspired polydopamine (PDA) film has attracted great interest as a versatile functional coating for biomolecule immobilization in various bio-related devices. However, the details regarding the interaction between a protein and PDA film remain unclear. Particularly, there is very limited knowledge regarding the protein immobilization on PDA film, even though it is of essential importance in various fields. The situation is even more complicated if considering the fact that quite a number of approaches (e.g., different oxidizing reagent, buffer pH, grown time, grown media, etc.) have been developed to grow PDA films. In this work, protein attachment on PDA film was systematically investigated by using the real-time and label-free surface plasmon resonance (SPR) technique. The kinetics of protein-PDA interaction was explored and the influence of buffer pH and deposition media on the protein attachment was studied. Fluorescent protein microarray was further printed on PDA-coated glass slides for quantitative investigations and together with SPR data, the interesting fluorescence quenching phenomenon of PDA film was revealed. This work may deepen our understanding on the PDA-protein interaction and offer a valuable guide for efficient protein attachment on PDA film in various bio-related applications.
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Affiliation(s)
- Daqun Chen
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, China
| | - Lei Zhao
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, China
| | - Weihua Hu
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, China.
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160
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Knorr DB, Tran NT, Gaskell KJ, Orlicki JA, Woicik JC, Jaye C, Fischer DA, Lenhart JL. Synthesis and Characterization of Aminopropyltriethoxysilane-Polydopamine Coatings. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:4370-4381. [PMID: 27055091 DOI: 10.1021/acs.langmuir.6b00531] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Polydopamine coatings are of interest due to the fact that they can promote adhesion to a broad range of materials and can enable a variety of applications. However, the polydopamine-substrate interaction is often noncovalent. To broaden the potential applications of polydopamine, we show the incorporation of 3-aminopropyltriethoxysilane (APTES), a traditional coupling agent capable of covalent bonding to a broad range of organic and inorganic surfaces, into polydopamine coatings. High energy X-ray photoelectron spectroscopy (HE-XPS), conventional XPS, near-edge X-ray absorption fine structure (NEXAFS), Fourier transform infrared-attenuated total reflectance (FTIR-ATR), and ellipsometry measurements were used to investigate changes in coating chemistry and thickness, which suggest covalent incorporation of APTES into polydopamine. These coatings can be deposited either in Tris buffer or by using an aqueous APTES solution as a buffer without Tris. APTES-dopamine hydrochloride deposition from solutions with molar ratios between 0:1 and 10:1 allowed us to control the coating composition across a broad range.
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Affiliation(s)
- Daniel B Knorr
- U.S. Army Research Laboratory , Aberdeen Proving Ground, Maryland 21005, United States
| | - Ngon T Tran
- U.S. Army Research Laboratory , Aberdeen Proving Ground, Maryland 21005, United States
| | - Karen J Gaskell
- Department of Chemistry and Biochemistry, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Joshua A Orlicki
- U.S. Army Research Laboratory , Aberdeen Proving Ground, Maryland 21005, United States
| | - Joseph C Woicik
- Material Measurement Laboratory, National Institute of Standards and Technology , Gaithersburg, Maryland 20899, United States
| | - Cherno Jaye
- Material Measurement Laboratory, National Institute of Standards and Technology , Gaithersburg, Maryland 20899, United States
| | - Daniel A Fischer
- Material Measurement Laboratory, National Institute of Standards and Technology , Gaithersburg, Maryland 20899, United States
| | - Joseph L Lenhart
- U.S. Army Research Laboratory , Aberdeen Proving Ground, Maryland 21005, United States
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161
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Mohd Daud N, Saeful Bahri IF, Nik Malek NAN, Hermawan H, Saidin S. Immobilization of antibacterial chlorhexidine on stainless steel using crosslinking polydopamine film: Towards infection resistant medical devices. Colloids Surf B Biointerfaces 2016; 145:130-139. [PMID: 27153117 DOI: 10.1016/j.colsurfb.2016.04.046] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 04/21/2016] [Accepted: 04/26/2016] [Indexed: 01/29/2023]
Abstract
Chlorhexidine (CHX) is known for its high antibacterial substantivity and is suitable for use to bio-inert medical devices due to its long-term antibacterial efficacy. However, CHX molecules require a crosslinking film to be stably immobilized on bio-inert metal surfaces. Therefore, polydopamine (PDA) was utilized in this study to immobilize CHX on the surface of 316L type stainless steel (SS316L). The SS316L disks were pre-treated, modified with PDA film and immobilized with different concentrations of CHX (10mM-50mM). The disks were then subjected to various surface characterization analyses (ATR-FTIR, XPS, ToF-SIMS, SEM and contact angle measurement) and tested for their cytocompatibility with human skin fibroblast (HSF) cells and antibacterial activity against Escherichia coli and Staphylococcus aureus. The results demonstrated the formation of a thin PDA film on the SS316L surface, which acted as a crosslinking medium between the metal and CHX. CHX was immobilized via a reduction process that covalently linked the CHX molecules with the functional group of PDA. The immobilization of CHX increased the hydrophobicity of the disk surfaces. Despite this property, a low concentration of CHX optimized the viability of HSF cells without disrupting the morphology of adherent cells. The immobilized disks also demonstrated high antibacterial efficacy against both bacteria, even at a low concentration of CHX. This study demonstrates a strong beneficial effect of the crosslinked PDA film in immobilizing CHX on bio-inert metal, and these materials are applicable in medical devices. Specifically, the coating will restrain bacterial proliferation without suffocating nearby tissues.
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Affiliation(s)
- Nurizzati Mohd Daud
- Biomedical Science Laboratory, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia
| | - Ihda Fithriyana Saeful Bahri
- Biomedical Science Laboratory, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia
| | - Nik Ahmad Nizam Nik Malek
- Department of Biotechnology and Medical Engineering, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia
| | - Hendra Hermawan
- Department of Mining, Metallurgical and Materials Engineering & CHU de Québec Research Center, Laval University, Quebec City, G1V 0A6, Canada
| | - Syafiqah Saidin
- Biomedical Science Laboratory, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia; Department of Biotechnology and Medical Engineering, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia.
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162
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Salomäki M, Tupala M, Parviainen T, Leiro J, Karonen M, Lukkari J. Preparation of Thin Melanin-Type Films by Surface-Controlled Oxidation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:4103-4112. [PMID: 27049932 DOI: 10.1021/acs.langmuir.6b00402] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The preparation of thin melanin films suitable for applications is challenging. In this work, we present a new alternative approach to thin melanin-type films using oxidative multilayers prepared by the sequential layer-by-layer deposition of cerium(IV) and inorganic polyphosphate. The interfacial reaction between cerium(IV) in the multilayer and 5,6-dihydroxyindole (DHI) in the adjacent aqueous solution leads to the formation of a thin uniform film. The oxidation of DHI by cerium(IV) proceeds via known melanin intermediates. We have characterized the formed DHI-melanin films using scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), UV-vis spectroscopy, and spectroelectrochemistry. When a five-bilayer oxidative multilayer is used, the film is uniform with a thickness of ca. 10 nm. Its chemical composition, as determined using XPS, is typical for melanin. It is also redox active, and its oxidation occurs in two steps, which can be assigned to semiquinone and quinone formation within the indole structural motif. Oxidative multilayers can also oxidize dopamine, but the reaction stops at the dopamine quinone stage because of the limited amount of the multilayer-based oxidizing agent. However, dopamine oxidation by Ce(IV) was studied also in solution by UV-vis spectroscopy and mass spectrometry in order to verify the reaction mechanism and the final product. In solution, the oxidation of dopamine by cerium shows that the indole ring formation takes place already at low pH and that the mass spectrum of the final product is practically identical with that of commercial melanin. Therefore, layer-by-layer formed oxidative multilayers can be used to deposit functional melanin-type thin films on arbitrary substrates by a surface-controlled reaction.
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Affiliation(s)
- Mikko Salomäki
- Turku University Centre for Materials and Surfaces (MatSurf), Turku, Finland
| | | | | | - Jarkko Leiro
- Turku University Centre for Materials and Surfaces (MatSurf), Turku, Finland
| | | | - Jukka Lukkari
- Turku University Centre for Materials and Surfaces (MatSurf), Turku, Finland
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163
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Chang CC, Kolewe KW, Li Y, Kosif I, Freeman BD, Carter KR, Schiffman JD, Emrick T. Underwater Superoleophobic Surfaces Prepared from Polymer Zwitterion/Dopamine Composite Coatings. ADVANCED MATERIALS INTERFACES 2016; 3:1500521. [PMID: 27774375 PMCID: PMC5074057 DOI: 10.1002/admi.201500521] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Hydration is central to mitigating surface fouling by oil and microorganisms. Immobilization of hydrophilic polymers on surfaces promotes retention of water and a reduction of direct interactions with potential foulants. While conventional surface modification techniques are surface-specific, mussel-inspired adhesives based on dopamine effectively coat many types of surfaces and thus hold potential as a universal solution to surface modification. Here, we describe a facile, one-step surface modification strategy that affords hydrophilic, and underwater superoleophobic, coatings by the simultaneous deposition of polydopamine (PDA) with poly(methacryloyloxyethyl phosphorylcholine) (polyMPC). The resultant composite coating features enhanced hydrophilicity (i.e., water contact angle of ~10° in air) and antifouling performance relative to PDA coatings. PolyMPC affords control over coating thickness and surface roughness, and results in a nearly 10 fold reduction in Escherichia coli adhesion relative to unmodified glass. The substrate-independent nature of PDA coatings further promotes facile surface modification without tedious surface pretreatment, and offers a robust template for codepositing polyMPC to enhance biocompatibility, hydrophilicity and fouling resistance.
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Affiliation(s)
- Chia-Chih Chang
- Department of Polymer Science & Engineering, Conte Center for Polymer Research, 120 Governors Drive, University of Massachusetts, Amherst, MA 01003, USA
| | - Kristopher W. Kolewe
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA 01003, USA
| | - Yinyong Li
- Department of Polymer Science & Engineering, Conte Center for Polymer Research, 120 Governors Drive, University of Massachusetts, Amherst, MA 01003, USA
| | - Irem Kosif
- Department of Polymer Science & Engineering, Conte Center for Polymer Research, 120 Governors Drive, University of Massachusetts, Amherst, MA 01003, USA
| | - Benny D. Freeman
- Department of Chemical Engineering, University of Texas, Austin, TX 78758, USA
| | - Kenneth R. Carter
- Department of Polymer Science & Engineering, Conte Center for Polymer Research, 120 Governors Drive, University of Massachusetts, Amherst, MA 01003, USA
| | - Jessica D. Schiffman
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA 01003, USA
| | - Todd Emrick
- Department of Polymer Science & Engineering, Conte Center for Polymer Research, 120 Governors Drive, University of Massachusetts, Amherst, MA 01003, USA
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164
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Li F, Du M, Zheng Q. Dopamine/Silica Nanoparticle Assembled, Microscale Porous Structure for Versatile Superamphiphobic Coating. ACS NANO 2016; 10:2910-2921. [PMID: 26828414 DOI: 10.1021/acsnano.6b00036] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Artificial superamphiphobic surfaces, which could repel both water and low surface tension organic liquids, have been limited to particular kinds of materials or surfaces thus far. In this work, a kind of microscale porous coating was developed. Taking dopamine and hydrophilic fumed silica nanoparticles as initial building blocks, microscale porous coating was constructed via ice templation. Polydopamine bound silica nanoparticles together to form a porous structure network and rendered the coating to have potential for further postfunctionalization. After two-step CVD, the microscale porous coating changes from superhydrophilic to superamphiphobic, exhibiting super-repellency to droplets with surface tension of 73-23 mN/m. The influences of concentration of initial dopamine, hydrophilic fumed silica nanoparticles, and dry conditions on the formation of the porous structure have been studied to optimize the conditions. Coatings with different pore sizes and pore heights have been fabricated to discover the relationship between the structure parameters and the repellency of the porous coatings. Only with optimal pore size and pore height can the porous coating display superamphiphobicity. Compared with nanoscale, the microscale structure favors the achievement of superamphiphobicity. Given the outstanding adhesive ability of polydopamine, the superamphiphobic coatings have been successfully applied to various materials including artificial materials and natural materials.
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Affiliation(s)
- Fang Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027, China
| | - Miao Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027, China
| | - Qiang Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027, China
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165
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Zhang C, Ou Y, Lei WX, Wan LS, Ji J, Xu ZK. CuSO4/H2O2-Induced Rapid Deposition of Polydopamine Coatings with High Uniformity and Enhanced Stability. Angew Chem Int Ed Engl 2016; 55:3054-7. [PMID: 26822393 DOI: 10.1002/anie.201510724] [Citation(s) in RCA: 255] [Impact Index Per Article: 31.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 01/06/2016] [Indexed: 11/11/2022]
Abstract
Mussel-inspired polydopamine (PDA) deposition offers a promising route to fabricate multifunctional coatings for various materials. However, PDA deposition is generally a time-consuming process, and PDA coatings are unstable in acidic and alkaline media, as well as in polar organic solvents. We report a strategy to realize the rapid deposition of PDA by using CuSO4/H2O2 as a trigger. Compared to the conventional processes, our strategy shows the fastest deposition rate reported to date, and the PDA coatings exhibit high uniformity and enhanced stability. Furthermore, the PDA-coated porous membranes have excellent hydrophilicity, anti-oxidant properties, and antibacterial performance. This work demonstrates a useful method for the environmentally friendly, cost-effective, and time-saving fabrication of PDA coatings.
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Affiliation(s)
- Chao Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yang Ou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Wen-Xi Lei
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Ling-Shu Wan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jian Ji
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zhi-Kang Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
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166
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Zhang C, Ou Y, Lei WX, Wan LS, Ji J, Xu ZK. CuSO4/H2O2-Induced Rapid Deposition of Polydopamine Coatings with High Uniformity and Enhanced Stability. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510724] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chao Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Yang Ou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Wen-Xi Lei
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Ling-Shu Wan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Jian Ji
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Zhi-Kang Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
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167
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Li W, Zhang G, Sheng W, Dong C, Dai Y, Li C, Wang R, Shi Y, Guo X, Jia X. Engineering plasmonic Ag/AgCl–polydopamine–carbon nitride composites for enhanced photocatalytic activity based on mussel chemistry. RSC Adv 2016. [DOI: 10.1039/c6ra24637k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
A green, energy-saving method was used to improve the properties of carbon nitride-based photocatalysts using dopamine chemistry.
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168
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Wu H, Ang JM, Kong J, Zhao C, Du Y, Lu X. One-pot synthesis of polydopamine–Zn complex antifouling coatings on membranes for ultrafiltration under harsh conditions. RSC Adv 2016. [DOI: 10.1039/c6ra19858a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, dopamine is polymerized in a basic aqueous solution that contains zinc species to form a hybrid coating on polysulfone (PSf) ultrafiltration membranes.
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Affiliation(s)
- Huiqing Wu
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- School of Materials Science and Engineering
- Xiamen University of Technology
| | - Jia Ming Ang
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
| | - Junhua Kong
- Institute of Materials Research and Engineering
- A*STAR (Agency for Science, Technology and Research)
- Singapore 138634
| | - Chenyang Zhao
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
| | - Yonghua Du
- Institute of Chemical and Engineering Sciences
- A*STAR (Agency for Science, Technology and Research)
- Jurong Island
- Singapore 627833
| | - Xuehong Lu
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
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169
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Ortega GA, Zuaznabar-Gardona JC, Morales-Tarré O, Reguera E. Immobilization of dengue specific IgM antibodies on magnetite nanoparticles by using facile conjugation strategies. RSC Adv 2016. [DOI: 10.1039/c6ra23260d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Five strategies to conjugate IgM antibodies on magnetite nanoparticles were evaluated and the most effective used for IgM-dengue detection.
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Affiliation(s)
- G. A. Ortega
- Center for Applied Science and Advanced Technology of IPN
- Mexico City
- Mexico
- University of Havana
- Faculty of Chemistry
| | | | - O. Morales-Tarré
- Center of Molecular Immunology
- INIM
- Process Development Direction
- Havana
- Cuba
| | - E. Reguera
- Center for Applied Science and Advanced Technology of IPN
- Mexico City
- Mexico
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170
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Repenko T, Fokong S, De Laporte L, Go D, Kiessling F, Lammers T, Kuehne AJC. Water-soluble dopamine-based polymers for photoacoustic imaging. Chem Commun (Camb) 2015; 51:6084-7. [PMID: 25670068 DOI: 10.1039/c5cc00039d] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Here we present a facile synthetic method yielding a linear form of polydopamine via Kumada-coupling, which can be converted into water-soluble melanin, generating high contrast in photoacoustic imaging.
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Affiliation(s)
- Tatjana Repenko
- DWI - Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstraße 50, 52074 Aachen, Germany.
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171
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Hong Y, Tang Z, Zhang Z. Enhanced electrochemical properties of LiMnPO4/C composites by tailoring polydopamine-derived carbon coating. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.07.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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172
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MUC1-Targeted Cancer Cell Photothermal Ablation Using Bioinspired Gold Nanorods. PLoS One 2015; 10:e0128756. [PMID: 26147830 PMCID: PMC4493038 DOI: 10.1371/journal.pone.0128756] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 05/01/2015] [Indexed: 11/19/2022] Open
Abstract
Recent studies have highlighted the overexpression of mucin 1 (MUC1) in various epithelial carcinomas and its role in tumorigenesis. These mucins present a novel targeting opportunity for nanoparticle-mediated photothermal cancer treatments due to their unique antenna-like extracellular extension. In this study, MUC1 antibodies and albumin were immobilized onto the surface of gold nanorods using a "primer" of polydopamine (PD), a molecular mimic of catechol- and amine-rich mussel adhesive proteins. PD forms an adhesive platform for the deposition of albumin and MUC1 antibodies, achieving a surface that is stable, bioinert and biofunctional. Two-photon luminescence confocal and darkfield scattering imaging revealed targeting of MUC1-BSA-PD-NRs to MUC1+ MCF-7 breast cancer and SCC-15 squamous cell carcinoma cells lines. Treated cells were exposed to a laser encompassing the near-infrared AuNR longitudinal surface plasmon and assessed for photothermal ablation. MUC1-BSA-PD-NRs substantially decreased cell viability in photoirradiated MCF-7 cell lines vs. MUC1- MDA-MB-231 breast cancer cells (p < 0.005). Agents exhibited no cytotoxicity in the absence of photothermal treatment. The facile nature of the coating method, combined with targeting and photoablation efficacy, are attractive features of these candidate cancer nanotherapeutics.
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173
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Wang Z, Jiang X, Cheng X, Lau CH, Shao L. Mussel-Inspired Hybrid Coatings that Transform Membrane Hydrophobicity into High Hydrophilicity and Underwater Superoleophobicity for Oil-in-Water Emulsion Separation. ACS APPLIED MATERIALS & INTERFACES 2015; 7:9534-9545. [PMID: 25893661 DOI: 10.1021/acsami.5b00894] [Citation(s) in RCA: 141] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We first report here mussel-inspired, hybrid coatings formed in a facile manner via simultaneous polymerization of mussel-inspired dopamine and hydrolysis of commercial tetraethoxysilane in a single-step process. The hybrid coatings can firmly adhered on hydrophobic polyvinylidene fluoride (PVDF) substrate, and the hydrophilicity of the coating can be tuned by adjusting silane concentration. The reason for the changed hydrophilicity of the coating is disclosed by a series of characterization, and was applied to rationally design optimized hybrid coatings that transform commercial PVDF microfiltration (MF) membrane hydrophobicity into high hydrophilicity with excellent water permeability and underwater superoleophobicity for oil-in-water emulsion separation. The PVDF MF membrane decorated with optimized coatings has ultrahigh water flux (8606 L m(-2) h(-1) only under 0.9 bar, which is 34 times higher than that of pristine membrane), highly efficient oil-in-water emulsion separation ability at atmospheric pressure (filtrate flux of 140 L m(-2) h(-1)) and excellent antifouling performance. More importantly, these membranes are extremely stable as underwater superoleophobicity are maintained, even after rigorous washings or cryogenic bending, disclosing outstanding stability. The simplicity and versatility of this novel mussel-inspired one-step strategy may bridge the material-induced technology gap between academia and industry, which makes it promising for eco-friendly applications.
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Affiliation(s)
- Zhenxing Wang
- †State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, P.R. China
| | - Xu Jiang
- †State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, P.R. China
| | - Xiquan Cheng
- †State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, P.R. China
- ‡Manufacturing Flagship, CSIRO, Private Bag 10, Clayton, Victoria 3168, Australia
| | - Cher Hon Lau
- ‡Manufacturing Flagship, CSIRO, Private Bag 10, Clayton, Victoria 3168, Australia
| | - Lu Shao
- †State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, P.R. China
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174
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Han L, Wang ZM, Lu X, Dong L, Xie CM, Wang KF, Chen XL, Ding YH, Weng LT. Mussel-inspired adhesive and transferable free-standing films by self-assembling dexamethasone encapsulated BSA nanoparticles and vancomycin immobilized oxidized alginate. Colloids Surf B Biointerfaces 2015; 126:452-8. [DOI: 10.1016/j.colsurfb.2014.12.050] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 12/25/2014] [Accepted: 12/29/2014] [Indexed: 11/28/2022]
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175
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Ginic-Markovic M, Barclay T, Constantopoulos KT, Al-Ghamdi T, Blok A, Markovic E, Ellis AV. A versatile approach to grafting biofouling resistant coatings from polymeric membrane surfaces using an adhesive macroinitiator. RSC Adv 2015. [DOI: 10.1039/c5ra09370h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The use of a polydopamine-based macroinitiator provides a flexible attachment method that is virtually independent of membrane substrate. The subsequent ARGET-ATRP controllably grafts the stable biofouling resistant polyzwitterion coating.
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Affiliation(s)
| | | | - Kristina T. Constantopoulos
- Flinders Centre for Nanoscale Science and Technology
- School of Chemical & Physical Sciences
- Flinders University
- Australia
| | - Tawfiq Al-Ghamdi
- Flinders Centre for Nanoscale Science and Technology
- School of Chemical & Physical Sciences
- Flinders University
- Australia
| | - Andrew Blok
- Flinders Centre for Nanoscale Science and Technology
- School of Chemical & Physical Sciences
- Flinders University
- Australia
| | - Elda Markovic
- Mawson Institute
- University of South Australia
- Australia
| | - Amanda V. Ellis
- Flinders Centre for Nanoscale Science and Technology
- School of Chemical & Physical Sciences
- Flinders University
- Australia
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176
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Wang P, Zhou Y, Wen Y, Wang F, Yang H. In situ polydopamine-assisted deposition of silver nanoparticles on a two dimensional support as an inexpensive and highly efficient SERS substrate. RSC Adv 2015. [DOI: 10.1039/c5ra03481g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Versatile substrates were modified with polydopamine followed by in situ AgNP deposition to fabricate a cheap, flexible and disposable SERS substrate.
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Affiliation(s)
- Peilan Wang
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
- Shanghai Normal University
| | - Yanling Zhou
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
- Shanghai Normal University
| | - Ying Wen
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
- Shanghai Normal University
| | - Feng Wang
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
- Shanghai Normal University
| | - Haifeng Yang
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors
- Department of Chemistry
- Shanghai Normal University
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