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Fontelo R, Soares da Costa D, Reis RL, Novoa-Carballal R, Pashkuleva I. Antithrombotic and hemocompatible properties of nanostructured coatings assembled from block copolymers. J Colloid Interface Sci 2021; 608:1608-1618. [PMID: 34742077 DOI: 10.1016/j.jcis.2021.10.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/08/2021] [Accepted: 10/13/2021] [Indexed: 01/03/2023]
Abstract
We describe the antithrombotic properties of nanopatterned coatings created by self-assembly of poly(styrene-block-2-vinylpyridine) (PS-b-P2VP) with different molecular weights. By changing the assembly conditions, we obtained nanopatterns that differ by their morphology (size and shape of the nanopattern) and chemistry. The surface exposition of P2VP block allowed quaternization, i.e. introduction of positive surface charge and following electrostatic deposition of heparin. Proteins (albumin and fibrinogen) adsorption, platelet adhesion and activation, cytocompatibility, and reendothelization capacity of the coatings were assessed and discussed in a function of the nanopattern morphology and chemistry. We found that quaternization results in excellent antithrombotic and hemocompatible properties comparable to heparinization by hampering the fibrinogen adhesion and platelet activation. In the case of quaternization, this effect depends on the size of the polymer blocks, while all heparinized patterns had similar performance showing that heparin surface coverage of 40 % is enough to improve substantially the hemocompatibility.
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Affiliation(s)
- R Fontelo
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - D Soares da Costa
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - R L Reis
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - R Novoa-Carballal
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal.
| | - I Pashkuleva
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal.
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Barrantes A, Wengenroth J, Arnebrant T, Haugen HJ. Poly- l -lysine/heparin multilayer coatings prevent blood protein adsorption. J Colloid Interface Sci 2017; 485:288-295. [DOI: 10.1016/j.jcis.2016.09.046] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 09/19/2016] [Accepted: 09/21/2016] [Indexed: 12/27/2022]
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Jiang W, Lai K, Wu Y, Gu Z. Protein corona on magnetite nanoparticles and internalization of nanoparticle–protein complexes into healthy and cancer cells. Arch Pharm Res 2014; 37:129-41. [DOI: 10.1007/s12272-013-0292-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Accepted: 11/06/2013] [Indexed: 01/12/2023]
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Dill JK, Auxier JA, Schilke KF, McGuire J. Quantifying nisin adsorption behavior at pendant PEO layers. J Colloid Interface Sci 2013; 395:300-5. [PMID: 23445762 DOI: 10.1016/j.jcis.2013.01.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 12/31/2012] [Accepted: 01/02/2013] [Indexed: 11/16/2022]
Abstract
The antimicrobial peptide nisin shows potent activity against Gram-positive bacteria including the most prevalent implant-associated pathogens. Its mechanism of action minimizes the opportunity for the rise of resistant bacteria and it does not appear to be toxic to humans, suggesting good potential for its use in antibacterial coatings for selected medical devices. A more quantitative understanding of nisin loading and release from polyethylene oxide (PEO) brush layers will inform new strategies for drug storage and delivery, and in this work optical waveguide lightmode spectroscopy was used to record changes in adsorbed mass during cyclic adsorption-elution experiments with nisin, at uncoated and PEO-coated surfaces. PEO layers were prepared by radiolytic grafting of Pluronic® surfactant F108 or F68 to silanized silica surfaces, producing long- or short-chain PEO layers, respectively. Kinetic patterns were interpreted with reference to a model accounting for history-dependent adsorption, in order to evaluate rate constants for nisin adsorption and desorption, as well as the effect of pendant PEO on the lateral clustering behavior of nisin. Nisin adsorption was observed at the uncoated and F108-coated surfaces, but not at the F68-coated surfaces. Nisin showed greater resistance to elution by peptide-free buffer at the uncoated surface, and lateral rearrangement and clustering of adsorbed nisin was apparent only at the uncoated surface. We conclude peptide entrapment at the F108-coated surface is governed by a hydrophobic inner region of the PEO brush layer that is not sufficient for nisin entrapment in the case of the shorter PEO chains of the F68-coated surface.
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Affiliation(s)
- Justen K Dill
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR 97331-2702, United States
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Hassan N, Maldonado-Valderrama J, Gunning AP, Morris VJ, Ruso JM. Investigating the effect of an arterial hypertension drug on the structural properties of plasma protein. Colloids Surf B Biointerfaces 2011; 87:489-97. [PMID: 21726985 DOI: 10.1016/j.colsurfb.2011.06.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Revised: 05/02/2011] [Accepted: 06/09/2011] [Indexed: 11/26/2022]
Abstract
Propanolol is a betablocker drug used in the treatment of arterial hypertension related diseases. In order to achieve an optimal performance of this drug it is important to consider the possible interactions of propanolol with plasma proteins. In this work, we have used several experimental techniques to characterise the effect of addition of the betablocker propanolol on the properties of bovine plasma fibrinogen (FB). Differential scanning calorimeter (DSC), circular dichroism (CD), dynamic light scattering (DLS), surface tension techniques and atomic force microscopy (AFM) measurements have been combined to carry out a detailed physicochemical and surface characterization of the mixed system. As a result, DSC measurements show that propranolol can play two opposite roles, either acting as a structure stabilizer at low molar concentrations or as a structure destabilizer at higher concentrations, in different domains of fibrinogen. CD measurements have revealed that the effect of propanolol on the secondary structure of fibrinogen depends on the temperature and the drug concentration and the DLS analysis showed evidence for protein aggregation. Interestingly, surface tension measurements provided further evidence of the conformational change induced by propanolol on the secondary structure of FB by importantly increasing the surface tension of the system. Finally, AFM imaging of the fibrinogen system provided direct visualization of the protein structure in the presence of propanolol. Combination of these techniques has produced complementary information on the behavior of the mixed system, providing new insights into the structural properties of proteins with potential medical interest.
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Affiliation(s)
- Natalia Hassan
- Department of Applied Physics University of Santiago de Compostela, Santiago de Compostela, Spain
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Hassan N, Maldonado-Valderrama J, Gunning AP, Morris VJ, Ruso JM. Surface Characterization and AFM Imaging of Mixed Fibrinogen−Surfactant Films. J Phys Chem B 2011; 115:6304-11. [DOI: 10.1021/jp200835j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Natalia Hassan
- Soft Matter and Molecular Biophysics
Group, Department of Applied Physics University of Santiago de Compostela, Campus Sur s/n, 15782, Santiago de Compostela,
Spain
| | | | - A. Patrick Gunning
- Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA, U.K
| | - Victor J. Morris
- Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA, U.K
| | - Juan M. Ruso
- Soft Matter and Molecular Biophysics
Group, Department of Applied Physics University of Santiago de Compostela, Campus Sur s/n, 15782, Santiago de Compostela,
Spain
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Abstract
The conformational dynamics of the 10th type-III module of fibronectin (FN-III(10)) adsorbed on the perfect and three reduced rutile TiO(2)(110) surfaces with different types of defects was investigated by molecular dynamics (MD) simulations. Stable protein-surface complexes were presented in the four simulated models and were derived from the contributions of direct and indirect interactions of various functional groups in FN-III(10) with the metal oxide layers. A detailed analysis to characterize the overall structural stability of the adsorbed FN-III(10) molecule suggests that the bonding strength and the loss of protein secondary structure vary widely, depending on the topology of the substrate surface. The additional adsorption sites exhibiting higher activity, provided by the reduced surfaces, are responsible for the stronger FN-III(10)-TiO(2) interactions, but too high an interaction energy will cause a severe conformational deformation and therefore a significant loss of bioactivity of the adsorbed protein.
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Affiliation(s)
- Chunya Wu
- Center for Precision Engineering, Harbin Institute of Technology, P.O. Box 413, Harbin 150001, China
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Abstract
The influence of topographical surface features at the submicron scale on the structural changes in the surface-adsorbed fibrinogen was investigated on poly(lactic-co-glycolic-acid) (PLGA) films. Attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) was employed in this study for the induced conformational change of fibrinogen over various adsorption times, while the adsorption kinetics of fibrinogen was quantified by the enzyme linked immunosorbent assay (ELISA). When a PLGA surface is modified topographically, the adsorbed fibrinogen undergoes less conformational change when compared to adsorption on the pristine PLGA surface. The extent of conformational change is related to platelet adhesion. Reduced thrombogenicity was demonstrated by the higher ratios of alpha-helix to beta-turn and beta-sheet to beta-turn structures on the topographic PLGA film, which suggests that topographical manipulation of surfaces is a viable approach to influence the thrombogenicity of surfaces.
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Affiliation(s)
- Li Buay Koh
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
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Mahato M, Pal P, Kamilya T, Sarkar R, Talapatra GB. pH Induced Structural Modulation and Interfacial Activity of Hemoglobin at the Air/Water Interface. J Phys Chem B 2009; 114:495-502. [DOI: 10.1021/jp908081r] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Mrityunjoy Mahato
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721211, India
| | - Prabir Pal
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721211, India
| | - Tapanendu Kamilya
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721211, India
| | - Ratan Sarkar
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721211, India
| | - G. B. Talapatra
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721211, India
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Abstract
In this paper, the morphology and kinetics of adsorption of protein A on a PDMS surface is studied by AFM. The results of effects of pH, protein concentration and contact time of the adsorption reveal that the morphology of adsorbed protein A is significantly affected by pH and adsorbed surface concentration, in which the pH away from the isoelectric point (IEP) of protein A could produce electrical repulsion to change the protein conformation, while the high adsorbed surface protein volume results in molecular networks. Protein A can form an adsorbed protein film on PDMS with a maximum volume of 2.45 x 10(-3) microm(3). This work enhances our fundamental understanding of protein A adsorption on PDMS, a frequently used substrate component in miniaturized immunoassay devices.
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Affiliation(s)
- Ling Yu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
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Joshi O, McGuire J, Wang D. Adsorption and function of recombinant factor VIII at solid–water interfaces in the presence of Tween-80. J Pharm Sci 2008; 97:4741-55. [DOI: 10.1002/jps.21333] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Pellenc D, Bennett RA, Green RJ, Sperrin M, Mulheran PA. New insights on growth mechanisms of protein clusters at surfaces: an AFM and simulation study. Langmuir 2008; 24:9648-9655. [PMID: 18671416 DOI: 10.1021/la801246k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Despite its relevance to a wide range of technological and fundamental areas, a quantitative understanding of protein surface clustering dynamics is often lacking. In inorganic crystal growth, surface clustering of adatoms is well described by diffusion-aggregation models. In such models, the statistical properties of the aggregate arrays often reveal the molecular scale aggregation processes. We investigate the potential of these theories to reveal hitherto hidden facets of protein clustering by carrying out concomitant observations of lysozyme adsorption onto mica surfaces, using atomic force microscopy, and Monte Carlo simulations of cluster nucleation and growth. We find that lysozyme clusters diffuse across the substrate at a rate that varies inversely with size. This result suggests which molecular scale mechanisms are responsible for the mobility of the proteins on the substrate. In addition the surface diffusion coefficient of the monomer can also be extracted from the comparison between experiments and simulations. While concentrating on a model system of lysozyme-on-mica, this 'proof of concept' study successfully demonstrates the potential of our approach to understand and influence more biomedically applicable protein-substrate couples.
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Affiliation(s)
- D Pellenc
- Department of Physics, and School of Pharmacy, University of Reading, Whiteknights Park, Reading RG6 6AF, U.K
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Clark AJ, Kotlicki A, Haynes CA, Whitehead LA. A new model of protein adsorption kinetics derived from simultaneous measurement of mass loading and changes in surface energy. Langmuir 2007; 23:5591-600. [PMID: 17425343 DOI: 10.1021/la0635350] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
We describe a novel technology based on changes in the resonant frequency of an acoustically actuated surface and use it to measure temporal changes in the surface energy gamma (N m(-1)) of an elastomeric polymer membrane due to the adsorption of macromolecules from aqueous solution. The resonant elastomeric surface-tension (REST) sensor permits simultaneous determination of mass loading kinetics and gamma(t) for a given adsorption process, thereby providing a multivariable data set from which to build and test models of the kinetics of adsorption at solid-liquid interfaces. The technique is used to measure gamma(t) during the adsorption of either sodium dodecyl sulfate (SDS) or hen egg-white lysozyme (HEWL) onto an acrylic polymer membrane. The adsorption of SDS is reversible and is characterized by a decrease in gamma over a time period that coincides with that required for the mass loading of the membrane. For the adsorption of HEWL labeled with Alexa Fluor 532 dye, gamma continues to change long after the surface concentration of labeled HEWL, measured by using the elastomeric polymer membrane as an optical waveguide, reaches steady state. Gradual but significant changes in gamma(t) are observed as long as the concentration of protein in the bulk solution, c(b), remains nonzero. HEWL remains adsorbed to the membrane when c(b) = 0, but changes in gamma(t) are not observed under this condition, indicating that the interaction of bound protein molecules with those free in solution contribute to the prolonged change in the surface energy. This observation has been used to define a new model for the kinetics of globular protein adsorption to a solid-liquid interface that includes a mechanism by which the molecules in the bulk can facilitate the desorption of a sorbate molecule or change the energetic states of adsorbed molecules and, thus, the overall surface energy. The model is shown to capture the unique features of protein adsorption kinetics, including the relatively fast mass loading, the much more gradual change in surface energy that does not cease until the protein is removed from the bulk, the rapid desorption of an incubation-time-dependent fraction of bound protein when the protein is removed from the bulk, and the fixing of the residual surface concentration and surface energy at constant values once the removal of reversibly bound protein and free protein is complete.
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Affiliation(s)
- Alison J Clark
- Department of Physics and Astronomy, and the Michael Smith Laboratories, University of British Columbia, Vancouver, BC V6T 1Z1
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