51
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Farkas E, Patko D, Khanh NQ, Toth E, Vonderviszt F, Horvath R. Self-assembly and structure of flagellin–polyelectrolyte composite layers: polyelectrolyte induced flagellar filament formation during the alternating deposition process. RSC Adv 2016. [DOI: 10.1039/c6ra19010c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
This study first reveals a new type of linearly growing polyelectrolyte multilayer buildup mechanism, when one of the components (PAH) induces the self-assembly of the oppositely charged component (flagellin), creating a filamentous nanostructured coating.
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Affiliation(s)
- Eniko Farkas
- Nanobiosensorics Laboratory
- Institute for Technical Physics and Materials Science
- MTA EK MFA
- Budapest
- Hungary
| | - Daniel Patko
- Nanobiosensorics Laboratory
- Institute for Technical Physics and Materials Science
- MTA EK MFA
- Budapest
- Hungary
| | - Nguyen Quoc Khanh
- MEMS Laboratory
- Institute for Technical Physics and Materials Science
- Microtechnology Group
- MTA EK MFA
- Budapest
| | - Eva Toth
- Doctoral School of Molecular and Nanotechnologies
- Faculty of Information Technology
- University of Pannonia
- Hungary
- Bio-Nanosystems Laboratory
| | - Ferenc Vonderviszt
- Nanobiosensorics Laboratory
- Institute for Technical Physics and Materials Science
- MTA EK MFA
- Budapest
- Hungary
| | - Robert Horvath
- Nanobiosensorics Laboratory
- Institute for Technical Physics and Materials Science
- MTA EK MFA
- Budapest
- Hungary
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52
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Mzyk A, Lackner JM, Wilczek P, Lipińska L, Niemiec-Cyganek A, Samotus A, Morenc M. Polyelectrolyte multilayer film modification for chemo-mechano-regulation of endothelial cell response. RSC Adv 2016. [DOI: 10.1039/c5ra23019e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The new multilayer polyelectrolyte films (PEMs) that are able to simulate the structure and functions of the extracellular matrix have become a powerful tool for tailoring biointerfaces of “cardiovascular” implants.
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Affiliation(s)
- A. Mzyk
- Institute of Metallurgy and Materials Science
- Polish Academy of Sciences
- 30-059 Krakow
- Poland
| | - J. M. Lackner
- Joanneum Research Forschungsges mbH
- Institute of Surface Technologies and Photonics
- Functional Surfaces
- Austria
| | - P. Wilczek
- Foundation for Cardiac Surgery Development
- 41-800 Zabrze
- Poland
| | - L. Lipińska
- Institute of Electronic Materials Technology
- 01-919 Warsow
- Poland
| | | | - A. Samotus
- Foundation for Cardiac Surgery Development
- 41-800 Zabrze
- Poland
| | - M. Morenc
- Foundation for Cardiac Surgery Development
- 41-800 Zabrze
- Poland
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53
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Martinez JS, Kelly KD, Ghoussoub YE, Delgado JD, Keller III TCS, Schlenoff JB. Cell resistant zwitterionic polyelectrolyte coating promotes bacterial attachment: an adhesion contradiction. Biomater Sci 2016; 4:689-98. [DOI: 10.1039/c5bm00585j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Polymers of various architectures with zwitterionic functionality have recently been shown to effectively suppress nonspecific fouling of surfaces by proteins and prokaryotic (bacteria) or eukaryotic (mammalian) cells as well as other microorganisms and environmental contaminants.
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Affiliation(s)
| | - Kristopher D. Kelly
- Department of Chemistry and Biochemistry
- The Florida State University
- Tallahassee
- USA
| | - Yara E. Ghoussoub
- Department of Chemistry and Biochemistry
- The Florida State University
- Tallahassee
- USA
| | - Jose D. Delgado
- Department of Chemistry and Biochemistry
- The Florida State University
- Tallahassee
- USA
| | | | - Joseph B. Schlenoff
- Department of Chemistry and Biochemistry
- The Florida State University
- Tallahassee
- USA
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54
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Séon L, Lavalle P, Schaaf P, Boulmedais F. Polyelectrolyte Multilayers: A Versatile Tool for Preparing Antimicrobial Coatings. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:12856-72. [PMID: 26513437 DOI: 10.1021/acs.langmuir.5b02768] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The prevention of pathogen colonization of medical implants represents a major medical and financial issue. The development of antimicrobial coatings aimed at protecting against such infections has thus become a major field of scientific and technological research. Three main strategies are developed to design such coatings: (i) the prevention of microorganisms adhesion and the killing of microorganisms (ii) by contact and (iii) by the release of active compounds in the vicinity of the implant. Polyelectrolyte multilayer (PEM) technology alone covers the entire widespread spectrum of functionalization possibilities. PEMs are obtained through the alternating deposition of polyanions and polycations on a substrate, and the great advantages of PEMs are that (i) they can be applied to almost any type of substrate whatever its shape and composition; (ii) various chemical, physicochemical, and mechanical properties of the coatings can be obtained; and (iii) active compounds can be embedded and released in a controlled manner. In this article we will give an overview of the field of PEMs applied to the design of antimicrobial coatings, illustrating the large versatility of the PEM technology.
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Affiliation(s)
- Lydie Séon
- Centre National de la Recherche Scientifique, Institut Charles Sadron, UPR 22 , 23 rue du Loess, 67034 Strasbourg, France
- Institut National de la Santé et de la Recherche Médicale, Biomaterials and Bioengineering, UMR 1121 , 11 rue Humann, 67085 Strasbourg, France
- Université de Strasbourg , Faculté de Chirurgie Dentaire, 2 rue Sainte-Elisabeth, 67000 Strasbourg, France
| | - Philippe Lavalle
- Institut National de la Santé et de la Recherche Médicale, Biomaterials and Bioengineering, UMR 1121 , 11 rue Humann, 67085 Strasbourg, France
- Université de Strasbourg , Faculté de Chirurgie Dentaire, 2 rue Sainte-Elisabeth, 67000 Strasbourg, France
| | - Pierre Schaaf
- Centre National de la Recherche Scientifique, Institut Charles Sadron, UPR 22 , 23 rue du Loess, 67034 Strasbourg, France
- Institut National de la Santé et de la Recherche Médicale, Biomaterials and Bioengineering, UMR 1121 , 11 rue Humann, 67085 Strasbourg, France
- Université de Strasbourg , Faculté de Chirurgie Dentaire, 2 rue Sainte-Elisabeth, 67000 Strasbourg, France
- Université de Strasbourg , Ecole Européenne de Chimie, Polymères et Matériaux, 25 rue Becquerel, 67087 Strasbourg, France
- International Center for Frontier Research in Chemistry, 8 allée Gaspard Monge, 67083 Strasbourg, France
- Institut Universitaire de France , 103 boulevard Saint-Michel, 75005 Paris, France
| | - Fouzia Boulmedais
- Centre National de la Recherche Scientifique, Institut Charles Sadron, UPR 22 , 23 rue du Loess, 67034 Strasbourg, France
- International Center for Frontier Research in Chemistry, 8 allée Gaspard Monge, 67083 Strasbourg, France
- University of Strasbourg Institute of Advanced Study , 5 allée du Général Rouvillois, 67083 Strasbourg, France
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55
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Ye C, Malak ST, Hu K, Wu W, Tsukruk VV. Cellulose Nanocrystal Microcapsules as Tunable Cages for Nano- and Microparticles. ACS NANO 2015; 9:10887-10895. [PMID: 26434779 DOI: 10.1021/acsnano.5b03905] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We demonstrate the fabrication of highly open spherical cages with large through pores using high aspect ratio cellulose nanocrystals with "haystack" shell morphology. In contrast to traditional ultrathin shell polymer microcapsules with random porous morphology and pore sizes below 10 nm with limited molecular permeability of individual macromolecules, the resilient cage-like microcapsules show a remarkable open network morphology that facilitates across-shell transport of large solid particles with a diameter from 30 to 100 nm. Moreover, the transport properties of solid nanoparticles through these shells can be pH-triggered without disassembly of these shells. Such behavior allows for the controlled loading and unloading of solid nanoparticles with much larger dimensions than molecular objects reported for conventional polymeric microcapsules.
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Affiliation(s)
- Chunhong Ye
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Sidney T Malak
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Kesong Hu
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Weibin Wu
- School of Light Industry Science and Engineering, Nanjing Forestry University , Nanjing, Jiangsu 210037, PR China
| | - Vladimir V Tsukruk
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
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56
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Zhang L, Tian B, Li Y, Lei T, Meng J, Yang L, Zhang Y, Chen F, Zhang H, Xu H, Zhang Y, Tang X. A Copper-Mediated Disulfiram-Loaded pH-Triggered PEG-Shedding TAT Peptide-Modified Lipid Nanocapsules for Use in Tumor Therapy. ACS APPLIED MATERIALS & INTERFACES 2015; 7:25147-25161. [PMID: 26501354 DOI: 10.1021/acsami.5b06488] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Disulfiram, which exhibits marked tumor inhibition mediated by copper, was encapsulated in lipid nanocapsules modified with TAT peptide (TATp) and pH-triggered sheddable PEG to target cancer cells on the basis of tumor environmental specificity. PEG-shedding lipid nanocapsules (S-LNCs) were fabricated from LNCs by decorating short PEG chains with TATp (HS-PEG(1k)-TATp) to form TATp-LNCs and then covered by pH-sensitive graft copolymers of long PEG chains (PGA-g-PEG(2k)). The DSF-S-LNCs had sizes in the range of 60-90 nm and were stable in the presence of 50% plasma. DSF-S-LNCs exhibited higher intracellular uptake and antitumor activity at pH 6.5 than at pH 7.4. The preincubation of Cu showed that the DSF cytotoxicity was based on the accumulation of Cu in Hep G2 cells. Pharmacokinetic studies showed the markedly improved pharmacokinetic profiles of DSF-S-LNCs (AUC= 3921.391 μg/L·h, t(1/2z) = 1.294 h) compared with free DSF (AUC = 907.724 μg/L·h, t(1/2z) = 0.252 h). The in vivo distribution of S-LNCs was investigated using Cy5.5 as a fluorescent probe. In tumor-bearing mice, the delivery efficiency of S-LNCs was found to be 496.5% higher than that of free Cy5.5 and 74.5% higher than that of LNCs in tumors. In conclusion, DSF-S-LNCs increased both the stability and tumor internalization and further increased the cytotoxicity because of the higher copper content.
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Affiliation(s)
- Ling Zhang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Bin Tian
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Yi Li
- Department of Pharmacology, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Tian Lei
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Jia Meng
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Liu Yang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Yan Zhang
- Normal College, Shenyang University , Shenyang, Liaoning, PR China
| | - Fen Chen
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
- Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine , Shenyang, Liaoning, PR China
| | - Haotian Zhang
- Department of Pharmacology, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Hui Xu
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Yu Zhang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Xing Tang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
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57
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Biocompatible long-sustained release oil-core polyelectrolyte nanocarriers: From controlling physical state and stability to biological impact. Adv Colloid Interface Sci 2015; 222:678-91. [PMID: 25453660 DOI: 10.1016/j.cis.2014.10.005] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 10/15/2014] [Accepted: 10/15/2014] [Indexed: 11/20/2022]
Abstract
It has been generally expected that the most applicable drug delivery system (DDS) should be biodegradable, biocompatible and with incidental adverse effects. Among many micellar aggregates and their mediated polymeric systems, polyelectrolyte oil-core nanocarriers have been found to successfully encapsulate hydrophobic drugs in order to target cells and avoid drug degradation and toxicity as well as to improve drug efficacy, its stability, and better intracellular penetration. This paper reviews recent developments in the formation of polyelectrolyte oil-core nanocarriers by subsequent multilayer adsorption at micellar structures, their imaging, physical state and stability, drug encapsulation and applications, in vitro release profiles and in vitro biological evaluation (cellular uptake and internalization, biocompatibility). We summarize the recent results concerning polyelectrolyte/surfactant interactions at interfaces, fundamental to understand the mechanisms of formation of stable polyelectrolyte layered structures on liquid cores. The fabrication of emulsion droplets stabilized by synergetic surfactant/polyelectrolyte complexes, properties, and potential applications of each type of polyelectrolyte oil-core nanocarriers, including stealth nanocapsules with pegylated shell, are discussed and evaluated.
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58
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Gentile P, Frongia ME, Cardellach M, Miller CA, Stafford GP, Leggett GJ, Hatton PV. Functionalised nanoscale coatings using layer-by-layer assembly for imparting antibacterial properties to polylactide-co-glycolide surfaces. Acta Biomater 2015; 21:35-43. [PMID: 25871538 DOI: 10.1016/j.actbio.2015.04.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 04/02/2015] [Accepted: 04/07/2015] [Indexed: 01/09/2023]
Abstract
In order to achieve high local biological activity and reduce the risk of side effects of antibiotics in the treatment of periodontal and bone infections, a localised and temporally controlled delivery system is desirable. The aim of this research was to develop a functionalised and resorbable surface to contact soft tissues to improve the antibacterial behaviour during the first week after its implantation in the treatment of periodontal and bone infections. Solvent-cast poly(d,l-lactide-co-glycolide acid) (PLGA) films were aminolysed and then modified by Layer-by-Layer technique to obtain a nano-layered coating using poly(sodium4-styrenesulfonate) (PSS) and poly(allylamine hydrochloride) (PAH) as polyelectrolytes. The water-soluble antibiotic, metronidazole (MET), was incorporated from the ninth layer. Infrared spectroscopy showed that the PSS and PAH absorption bands increased with the layer number. The contact angle values had a regular alternate behaviour from the ninth layer. X-ray Photoelectron Spectroscopy evidenced two distinct peaks, N1s and S2p, indicating PAH and PSS had been introduced. Atomic Force Microscopy showed the presence of polyelectrolytes on the surface with a measured roughness about 10nm after 20 layers' deposition. The drug release was monitored by Ultraviolet-visible spectroscopy showing 80% loaded-drug delivery in 14 days. Finally, the biocompatibility was evaluated in vitro with L929 mouse fibroblasts and the antibacterial properties were demonstrated successfully against the keystone periodontal bacteria Porphyromonas gingivalis, which has an influence on implant failure, without compromising in vitro biocompatibility. In this study, PLGA was successfully modified to obtain a localised and temporally controlled drug delivery system, demonstrating the potential value of LbL as a coating technology for the manufacture of medical devices with advanced functional properties.
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59
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Łukasiewicz S, Szczepanowicz K, Błasiak E, Dziedzicka-Wasylewska M. Biocompatible Polymeric Nanoparticles as Promising Candidates for Drug Delivery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:6415-6425. [PMID: 26013473 DOI: 10.1021/acs.langmuir.5b01226] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The use of polymeric nanoparticles (NPs) in pharmacology provides many benefits because this approach can increase the efficacy and selectivity of active compounds. However, development of new nanocarriers requires better understanding of the interactions between NPs and the immune system, allowing for the optimization of NP properties for effective drug delivery. Therefore, in the present study, we focused on the investigation of the interactions between biocompatible polymeric NPs and a murine macrophage cell line (RAW 264.7) and a human monocytic leukemia cell line (THP-1). NPs based on a liquid core with polyelectrolyte shells were prepared by sequential adsorption of polyelectrolytes (LbL) using AOT (docusate sodium salt) as the emulsifier and the biocompatible polyelectrolytes polyanion PGA (poly-l-glutamic acid sodium salt) and polycation PLL (poly l-lysine). The average size of the obtained NPs was 80 nm. Pegylated external layers were prepared using PGA-g-PEG (PGA grafted by PEG poly(ethylene glycol)). The influence of the physicochemical properties of the NPs (charge, size, surface modification) on viability, phagocytosis potential, and endocytosis was studied. Internalization of NPs was determined by flow cytometry and confocal microscopy. Moreover, we evaluated whether addition of PEG chains downregulates particle uptake by phagocytic cells. The presented results confirm that the obtained PEG-grafted NPs are promising candidates for drug delivery.
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Affiliation(s)
- Sylwia Łukasiewicz
- †Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland
| | | | - Ewa Błasiak
- †Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland
| | - Marta Dziedzicka-Wasylewska
- †Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland
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60
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Yue C, van der Mei HC, Kuijer R, Busscher HJ, Rochford ETJ. Mechanism of cell integration on biomaterial implant surfaces in the presence of bacterial contamination. J Biomed Mater Res A 2015; 103:3590-8. [PMID: 25966819 DOI: 10.1002/jbm.a.35502] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 05/05/2015] [Accepted: 05/07/2015] [Indexed: 12/21/2022]
Abstract
Bacterial contamination during biomaterial implantation is often unavoidable, yielding a combat between cells and bacteria. Here we aim to determine the modulatory function of bacterial components on stem-cell, fibroblast, and osteoblast adhesion to a titanium alloy, including the role of toll-like-receptors (TLRs). Presence of heat-sacrificed Staphylococcus epidermidis, Staphylococcus aureus, Escherichia coli, or Pseudomonas aeruginosa induced dose and cell-type dependent responses. Stem-cells were most sensitive to bacterial presence, demonstrating decreased adhesion number yet increased adhesion effort with a relatively large focal adhesion contact area. Blocking TLRs had no effect on stem-cell adhesion in presence of S. aureus, but blocking both TLR2 and TLR4 induced an increased adhesion effort in presence of E. coli. Neither lipopolysaccharide, lipoteichoic acid, nor bacterial DNA provoked the same cell response as did whole bacteria. Herewith we suggest a new mechanism as to how biomaterials are integrated by cells despite the unavoidable presence of bacterial contamination. Stimulation of host cell integration of implant surfaces may open a new window to design new biomaterials with enhanced healing, thereby reducing the risk of biomaterial-associated infection of both "hardware-based" implants as well as of tissue-engineered constructs, known to suffer from similarly high infection risks as currently prevailing in "hardware-based" implants.
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Affiliation(s)
- Chongxia Yue
- University of Groningen and University Medical Center Groningen, Department of Biomedical Engineering, P.O. Box 196, 9700 AD Groningen, The Netherlands
| | - Henny C van der Mei
- University of Groningen and University Medical Center Groningen, Department of Biomedical Engineering, P.O. Box 196, 9700 AD Groningen, The Netherlands
| | - Roel Kuijer
- University of Groningen and University Medical Center Groningen, Department of Biomedical Engineering, P.O. Box 196, 9700 AD Groningen, The Netherlands
| | - Henk J Busscher
- University of Groningen and University Medical Center Groningen, Department of Biomedical Engineering, P.O. Box 196, 9700 AD Groningen, The Netherlands
| | - Edward T J Rochford
- University of Groningen and University Medical Center Groningen, Department of Biomedical Engineering, P.O. Box 196, 9700 AD Groningen, The Netherlands
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61
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Lu Y, Wu Y, Liang J, Libera MR, Sukhishvili SA. Self-defensive antibacterial layer-by-layer hydrogel coatings with pH-triggered hydrophobicity. Biomaterials 2015; 45:64-71. [DOI: 10.1016/j.biomaterials.2014.12.048] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 12/09/2014] [Accepted: 12/20/2014] [Indexed: 11/25/2022]
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62
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Huang CJ, Chen YS, Chang Y. Counterion-activated nanoactuator: reversibly switchable killing/releasing bacteria on polycation brushes. ACS APPLIED MATERIALS & INTERFACES 2015; 7:2415-2423. [PMID: 25608105 DOI: 10.1021/am507105r] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A strategy to release attached bacteria from surface-grafted bactericidal poly((trimethylamino)ethyl methacrylate chloride) (pTMAEMA) brushes has been proposed. The pTMAEMA brushes were fabricated via the surface-initiated atom transfer radical polymerization for contact killing of bacteria, including Escherichia coli, Staphylococcus epidermidis and Stenotrophomonas maltophilia. The bacteria-conditioning surfaces, afterward, were washed with electrolyte solutions containing anions with different lipophilic characteristic, charge density, polarity and adsorbility to quaternary ammonium groups in polymers. Because of the special ion-pairing interactions, the interfacial properties, including wettability and ζ-potential, can be manipulated in a controlled manner. Therefore, the counterion-assisted modulation of pTMAEMA brushes facilitates the bacterial release and regeneration of antimicrobial polymer films. The physicochemical properties of polymer brushes and their interactions with counterions were characterized using an ellipsometer, contact angle goniometer, X-ray photoelectron spectroscopy and an electrokinetic analyzer. The repetitive killing and releasing actions of pTMAEMA through unlocking and locking counterions were demonstrated, showing the robust effectiveness of the pTMAEMA-based nanoactuator in controlling the physical action by the chemical stimuli. The real-world implementation of the nanoactuator was demonstrated with a surgical scalpel by repelling killed bacteria and retaining reusability.
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Affiliation(s)
- Chun-Jen Huang
- Graduate Institute of Biomedical Engineering, ‡Department of Chemical and Material Engineering, National Central University , Jhong-Li, Taoyuan City 32001, Taiwan
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63
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Rodriguez-Emmenegger C, Janel S, de los Santos Pereira A, Bruns M, Lafont F. Quantifying bacterial adhesion on antifouling polymer brushes via single-cell force spectroscopy. Polym Chem 2015. [DOI: 10.1039/c5py00197h] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The adhesion forces between a single bacterial cell and different polymer brushes were measured directly with an atomic force microscope and correlated with their resistance to fouling.
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Affiliation(s)
- Cesar Rodriguez-Emmenegger
- Institute of Macromolecular Chemistry
- Academy of Sciences of the Czech Republic
- 162 06 Prague
- Czech Republic
| | - Sébastien Janel
- Cellular Microbiology and Physics of Infection Group
- CNRS UMR 8204
- INSERM U1019
- Institut Pasteur de Lille
- Lille University
| | | | - Michael Bruns
- Institute for Applied Materials (IAM)
- Karlsruhe Nano Micro Facility (KNMF)
- Karlsruhe Institute of Technology (KIT)
- 76344 Eggenstein-Leopoldshafen
- Germany
| | - Frank Lafont
- Cellular Microbiology and Physics of Infection Group
- CNRS UMR 8204
- INSERM U1019
- Institut Pasteur de Lille
- Lille University
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64
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Abstract
This review describes the latest update on research in the area of layer-by-layer assemblies for antibacterial applications.
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Affiliation(s)
- Xiaoying Zhu
- Institute of Materials Research and Engineering
- A*STAR (Agency for Science
- Technology and Research)
- , Singapore 117602
| | - Xian Jun Loh
- Institute of Materials Research and Engineering
- A*STAR (Agency for Science
- Technology and Research)
- , Singapore 117602
- Department of Materials Science and Engineering
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65
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Rajesh S, Yan Y, Chang HC, Gao H, Phillip WA. Mixed mosaic membranes prepared by layer-by-layer assembly for ionic separations. ACS NANO 2014; 8:12338-12345. [PMID: 25470202 DOI: 10.1021/nn504736w] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Charge mosaic membranes, which possess distinct cationic and anionic domains that traverse the membrane thickness, are capable of selectively separating dissolved salts from similarly sized neutral solutes. Here, the generation of charge mosaic membranes using facile layer-by-layer assembly methodologies is reported. Polymeric nanotubes with pore walls lined by positively charged polyethylenimine moieties or negatively charged poly(styrenesulfonate) moieties were prepared via layer-by-layer assembly using track-etched membranes as sacrificial templates. Subsequently, both types of nanotubes were deposited on a porous support in order to produce mixed mosaic membranes. Scanning electron microscopy demonstrates that the facile deposition techniques implemented result in nanotubes that are vertically aligned without overlap between adjacent elements. Furthermore, the nanotubes span the thickness of the mixed mosaic membranes. The effects of this unique nanostructure are reflected in the transport characteristics of the mixed mosaic membranes. The hydraulic permeability of the mixed mosaic membranes in piezodialysis operations was 8 L m(-2) h(-1) bar(-1). Importantly, solute rejection experiments demonstrate that the mixed mosaic membranes are more permeable to ionic solutes than similarly sized neutral molecules. In particular, negative rejection of sodium chloride is observed (i.e., the concentration of NaCl in the solution that permeates through a mixed mosaic membrane is higher than in the initial feed solution). These properties illustrate the ability of mixed mosaic membranes to permeate dissolved ions selectively without violating electroneutrality and suggest their utility in ionic separations.
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Affiliation(s)
- Sahadevan Rajesh
- Department of Chemical and Biomolecular Engineering and ‡Department of Chemistry and Biochemistry, University of Notre Dame , Notre Dame, Indiana 46556-5637, United States
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66
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Falentin-Daudre C. Functionalization of Biomaterials and Applications. Biomaterials 2014. [DOI: 10.1002/9781119043553.ch6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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67
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Zhuk I, Jariwala F, Attygalle AB, Wu Y, Libera MR, Sukhishvili SA. Self-defensive layer-by-layer films with bacteria-triggered antibiotic release. ACS NANO 2014; 8:7733-45. [PMID: 25093948 DOI: 10.1021/nn500674g] [Citation(s) in RCA: 174] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We report on highly efficient, bioresponsive, controlled-release antibacterial coatings constructed by direct assembly of tannic acid (TA) with one of several cationic antibiotics (tobromycin, gentamicin, and polymyxin B) using the layer-by-layer (LbL) technique. These films exhibit a distinct “self-defense” behavior triggered by acidification of the immediate environment by pathogenic bacteria, such as Staphylococcus epidermidis (S. epidermidis) or Escherichia coli (E. coli). Films assembled using spin-assisted and dip-assisted techniques show drastically different morphology, thickness and pH-/bacteria-triggered antibiotic release characteristics. While dip-deposited films have rough surfaces with island-like, granular structures regardless of the film thickness, spin-assisted LbL assemblies demonstrate a transition from linear deposition of uniform 2D films to a highly developed 3D morphology for films thicker than ∼45 nm. Ellipsometry, UV–vis and mass spectrometry confirm that all coatings do not release antibiotics in phosphate buffered saline at pH 7.4 for as long as one month in the absence of bacteria and therefore do not contribute to the development of antibiotic resistance. These films do, however, release antibiotics upon pH lowering. The rate of triggered release can be controlled through the choice of assembled antibiotic and the assembly technique (spin- vs dip-deposition) and by the spinning rate used during deposition, which all affect the strength of TA–antibiotic binding. TA/antibiotic coatings as thin as 40 nm strongly inhibit S. epidermidis and E. coli bacterial growth both at surfaces and in surrounding medium, but support adhesion and proliferation of murine osteoblast cells. These coatings thus present a promising way to incorporate antibacterial agents at surfaces to prevent bacterial colonization of implanted biomedical devices.
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68
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Lombana A, Raja Z, Casale S, Pradier CM, Foulon T, Ladram A, Humblot V. Temporin-SHa peptides grafted on gold surfaces display antibacterial activity. J Pept Sci 2014; 20:563-9. [PMID: 24919960 DOI: 10.1002/psc.2654] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/25/2014] [Accepted: 04/28/2014] [Indexed: 01/26/2023]
Abstract
Development of resistant bacteria onto biomaterials is a major problem leading to nosocomial infections. Antimicrobial peptides are good candidates for the generation of antimicrobial surfaces because of their broad-spectrum activity and their original mechanism of action (i.e. rapid lysis of the bacterial membrane) making them less susceptible to the development of bacterial resistance. In this study, we report on the covalent immobilisation of temporin-SHa on a gold surface modified by a thiolated self-assembled monolayer. Temporin-SHa (FLSGIVGMLGKLF amide) is a small hydrophobic and low cationic antimicrobial peptide with potent and very broad-spectrum activity against Gram-positive and Gram-negative bacteria, yeasts and parasites. We have analysed the influence of the binding mode of temporin-SHa on the antibacterial efficiency by using a covalent binding either via the peptide NH2 groups (random grafting of α- and ε-NH2 to the surface) or via its C-terminal end (oriented grafting using the analogue temporin-SHa-COOH). The surface functionalization was characterised by IR spectroscopy (polarisation modulation reflection absorption IR spectroscopy) while antibacterial activity against Listeria ivanovii was assessed by microscopy techniques, such as atomic force microscopy and scanning electron microscopy equipped with a field emission gun. Our results revealed that temporin-SHa retains its antimicrobial activity after covalent grafting. A higher amount of bound temporin-SHa is observed for the C-terminally oriented grafting compared with the random grafting (NH2 groups). Temporin-SHa therefore represents an attractive candidate as antimicrobial coating agent.
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Affiliation(s)
- Andres Lombana
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7197, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France; CNRS, UMR 7197, Laboratoire de Réactivité de Surface, F-75005, Paris, France
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69
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Kim D, Tzeng P, Barnett KJ, Yang YH, Wilhite BA, Grunlan JC. Highly size-selective ionically crosslinked multilayer polymer films for light gas separation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:746-751. [PMID: 24293271 DOI: 10.1002/adma.201302177] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 10/15/2013] [Indexed: 06/02/2023]
Abstract
Exceptionally high hydrogen permselectivity, exceeding that of any polymeric or porous inorganic systems, is achieved using an ionically crosslinked multilayer polymer thin film.
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Affiliation(s)
- Daejin Kim
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, 3122 TAMU, College Station, TX, 77843-3122, United States
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70
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Tzeng P, Maupin CR, Grunlan JC. Influence of polymer interdiffusion and clay concentration on gas barrier of polyelectrolyte/clay nanobrick wall quadlayer assemblies. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.10.039] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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71
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Rodriguez-Emmenegger C, Decker A, Surman F, Preuss CM, Sedláková Z, Zydziak N, Barner-Kowollik C, Schwartz T, Barner L. Suppressing Pseudomonas aeruginosa adhesion via non-fouling polymer brushes. RSC Adv 2014. [DOI: 10.1039/c4ra12663g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
In the current study, well-defined polymer brushes are shown as an effective surface modification to resist biofilm formation from opportunistic pathogens.
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Affiliation(s)
- Cesar Rodriguez-Emmenegger
- Institute of Macromolecular Chemistry
- Academy of Sciences of the Czech Republic
- 162 06 Prague, Czech Republic
- Preparative Macromolecular Chemistry
- Institut für Technische Chemie und Polymerchemie
| | - Antje Decker
- Institut für Funktionelle Grenzflächen
- Karlsruhe Institute of Technology (KIT)
- 76344 Eggenstein-Leopoldshafen, Germany
| | - František Surman
- Institute of Macromolecular Chemistry
- Academy of Sciences of the Czech Republic
- 162 06 Prague, Czech Republic
| | - Corinna M. Preuss
- Preparative Macromolecular Chemistry
- Institut für Technische Chemie und Polymerchemie
- Karlsruhe Institute of Technology (KIT)
- 76128 Karlsruhe, Germany
| | - Zdeňka Sedláková
- Institute of Macromolecular Chemistry
- Academy of Sciences of the Czech Republic
- 162 06 Prague, Czech Republic
| | - Nicolas Zydziak
- Preparative Macromolecular Chemistry
- Institut für Technische Chemie und Polymerchemie
- Karlsruhe Institute of Technology (KIT)
- 76128 Karlsruhe, Germany
- Soft Matter Synthesis Laboratory
| | - Christopher Barner-Kowollik
- Preparative Macromolecular Chemistry
- Institut für Technische Chemie und Polymerchemie
- Karlsruhe Institute of Technology (KIT)
- 76128 Karlsruhe, Germany
- Soft Matter Synthesis Laboratory
| | - Thomas Schwartz
- Institut für Funktionelle Grenzflächen
- Karlsruhe Institute of Technology (KIT)
- 76344 Eggenstein-Leopoldshafen, Germany
| | - Leonie Barner
- Soft Matter Synthesis Laboratory
- Institut für Biologische Grenzflächen
- Karlsruhe Institute of Technology (KIT)
- 76344 Eggenstein-Leopoldshafen, Germany
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72
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Jisr RM, Keller TCS, Schlenoff JB. Patterned friction and cell attachment on schizophobic polyelectrolyte surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:15579-15588. [PMID: 24308547 DOI: 10.1021/la403853z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A series of copolyelectrolytes with randomly positioned fluorinated (hydrophobic) and zwitterionic (hydrophilic) repeat units was synthesized and used to assemble multilayers. Regular layer-by-layer growth was observed for polymers with a charge density as low as 6%. The hydrophobicity of these "schizophobic" surfaces increased with increasing fluorine content. Polymer-on-polymer stamping was used to create patterned areas of low and high friction, probed by lateral force microscopy using a modified hydrophobic tip. "Contractile" A7r5 smooth muscle cells adhered to the fluorinated surfaces, but the introduction of zwitterion functionality induced a motile, less firmly attached morphology consistent with the "synthetic" motile phenotype of this cell line. In contrast with cells well adhered (on fluorinated) or completely nonadhering (on zwitterionic) films, incorporation of closely spaced repeat units with strongly contrasting hydrophobicity appears to generate intermediate cell adhesion behavior.
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Affiliation(s)
- Rana M Jisr
- Department of Physical Sciences, West Virginia University Institute of Technology , Montgomery, West Virginia, 25136, United States
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73
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Zhao L, Li N, Wang K, Shi C, Zhang L, Luan Y. A review of polypeptide-based polymersomes. Biomaterials 2013; 35:1284-301. [PMID: 24211077 DOI: 10.1016/j.biomaterials.2013.10.063] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 10/20/2013] [Indexed: 12/11/2022]
Abstract
Self-assembled systems from biodegradable amphiphilic polymers at the nanometer scale, such as nanotubes, nanoparticles, polymer micelles, nanogels, and polymersomes, have attracted much attention especially in biomedical fields. Among these nano-aggregates, polymersomes have attracted tremendous interests as versatile carriers due to their colloidal stability, tunable membrane properties and ability of encapsulating or integrating a broad range of drugs and molecules. Biodegradable block polymers, especially aliphatic polyesters such as polylactide, polyglycolide and poly (ε-caprolactone) have been widely used as biomedical materials for a long time to well fit the requirement of biomedical drug carriers. To have a precise control of the aggregation behavior of nano-aggregates, the more ordered polypeptide has been used to self-assemble into the drug carriers. In this review we focus on the study of polymersomes which also named pepsomes formed by polypeptide-based copolymers and attempt to clarify the polypeptide-based polymersomes from following aspects: synthesis and characterization of the polypeptide-based copolymers, preparation, multifunction and application of polypeptide-based polymersomes.
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Affiliation(s)
- Lanxia Zhao
- School of Pharmaceutical Science, Shandong University, 44 West Wenhua Road, Jinan, Shandong Province 250012, PR China
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74
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Zhang W, Cheng Q, Guo S, Lin D, Huang P, Liu J, Wei T, Deng L, Liang Z, Liang XJ, Dong A. Gene transfection efficacy and biocompatibility of polycation/DNA complexes coated with enzyme degradable PEGylated hyaluronic acid. Biomaterials 2013; 34:6495-503. [DOI: 10.1016/j.biomaterials.2013.04.030] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Accepted: 04/16/2013] [Indexed: 10/26/2022]
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75
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Campoccia D, Montanaro L, Arciola CR. A review of the biomaterials technologies for infection-resistant surfaces. Biomaterials 2013; 34:8533-54. [PMID: 23953781 DOI: 10.1016/j.biomaterials.2013.07.089] [Citation(s) in RCA: 762] [Impact Index Per Article: 69.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Accepted: 07/26/2013] [Indexed: 02/06/2023]
Abstract
Anti-infective biomaterials need to be tailored according to the specific clinical application. All their properties have to be tuned to achieve the best anti-infective performance together with safe biocompatibility and appropriate tissue interactions. Innovative technologies are developing new biomaterials and surfaces endowed with anti-infective properties, relying either on antifouling, or bactericidal, or antibiofilm activities. This review aims at thoroughly surveying the numerous classes of antibacterial biomaterials and the underlying strategies behind them. Bacteria repelling and antiadhesive surfaces, materials with intrinsic antibacterial properties, antibacterial coatings, nanostructured materials, and molecules interfering with bacterial biofilm are considered. Among the new strategies, the use of phages or of antisense peptide nucleic acids are discussed, as well as the possibility to modulate the local immune response by active cytokines. Overall, there is a wealth of technical solutions to contrast the establishment of an implant infection. Many of them exhibit a great potential in preclinical models. The lack of well-structured prospective multicenter clinical trials hinders the achievement of conclusive data on the efficacy and comparative performance of anti-infective biomaterials.
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Affiliation(s)
- Davide Campoccia
- Research Unit on Implant Infections, Rizzoli Orthopaedic Institute, Via di Barbiano 1/10, 40136 Bologna, Italy
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76
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Davila J, Toulemon D, Garnier T, Garnier A, Senger B, Voegel JC, Mésini PJ, Schaaf P, Boulmedais F, Jierry L. Bioaffinity sensor based on nanoarchitectonic films: control of the specific adsorption of proteins through the dual role of an ethylene oxide spacer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:7488-7498. [PMID: 23346932 DOI: 10.1021/la3045779] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The identification and quantification of biomarkers or proteins is a real challenge in allowing the early detection of diseases. The functionalization of the biosensor surface has to be properly designed to prevent nonspecific interactions and to detect the biomolecule of interest specifically. A multilayered nanoarchitecture, based on polyelectrolyte multilayers (PEM) and the sequential immobilization of streptavidin and a biotinylated antibody, was elaborated as a promising platform for the label-free sensing of targeted proteins. We choose ovalbumin as an example. Thanks to the versatility of PEM films, the platform was built on two types of sensor surface and was evaluated using both optical- and viscoelastic-based techniques, namely, optical waveguide lightmode spectroscopy and the quartz crystal microbalance, respectively. A library of biotinylated poly(acrylic acids) (PAAs) was synthesized by grafting biotin moieties at different grafting ratios (GR). The biotin moieties were linked to the PAA chains through ethylene oxide (EO) spacers of different lengths. The adsorption of the PAA-EOn-biotin (GR) layer on a PEM precursor film allows tuning the surface density in biotin and thus the streptavidin adsorption mainly through the grafting ratio. The nonspecific adsorption of serum was reduced and even suppressed depending on the length of the EO arms. We showed that to obtain an antifouling polyelectrolyte the grafting of EO9 or EO19 chains at 25% in GR is sufficient. Thus, the spacer has a dual role: ensuring the antifouling property and allowing the accessibility of biotin moieties. Finally, an optimized platform based on the PAA-EO9-biotin (25%)/streptavidin/biotinylated-antibody architecture was built and demonstrated promising performance as interface architecture for bioaffinity sensing of a targeted protein, in our case, ovalbumin.
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Affiliation(s)
- Johanna Davila
- Centre National de la Recherche Scientifique, Unité Propre de Recherche 22, Institut Charles Sadron, Strasbourg, France
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77
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Tripathi BP, Dubey NC, Stamm M. Functional polyelectrolyte multilayer membranes for water purification applications. JOURNAL OF HAZARDOUS MATERIALS 2013; 252-253:401-412. [PMID: 23557682 DOI: 10.1016/j.jhazmat.2013.02.052] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 02/15/2013] [Accepted: 02/25/2013] [Indexed: 06/02/2023]
Abstract
A diverse set of supported multilayer assemblies with controllable surface charge, hydrophilicity, and permeability to water and solute was fabricated by pressure driven permeation of poly(sodium 4-styrenesulfonate) (PSS) and poly(diallyldimethylammonium chloride) (PDDA) solution through poly(ethylene terephthalate) (PET) track-etched membranes. The polyelectrolyte multilayer fabrication was confirmed by means of FTIR, SEM, AFM, ellipsometry, zetapotential, and contact angle characterization. The prepared membranes were characterized in terms of their pure water permeability, flux recovery, and resistance to organic and biofouling properties. The antifouling behavior of the membranes was assessed in terms of protein adsorption and antibacterial behavior. Finally, the membranes were tested for rejection of selected water soluble dyes to establish their usefulness for organic contaminant removal from water. The membranes were highly selective and capable of nearly complete rejection of congo red with sufficiently high fluxes. The feasibility of regenerating the prepared membranes fouled by protein was also demonstrated and good flux recovery was obtained. In summary, the multilayer approach to surface and pore modification was shown to enable the design of membranes with the unique combination of desirable separation characteristics, regenerability of the separation layer, and antifouling behavior.
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Affiliation(s)
- Bijay P Tripathi
- Department of Nanostructured Materials, Leibniz Institute of Polymer Research Dresden, Hohe Str 6, 01069 Dresden, Germany.
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78
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Pavlukhina S, Sukhishvili S. Smart Layer-by-Layer Assemblies for Drug Delivery. SMART MATERIALS FOR DRUG DELIVERY 2013. [DOI: 10.1039/9781849734318-00117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Layer-by-layer (LbL) assembly is an effective tool for development of surface coatings and capsules for localized, controlled delivery of bioactive molecules. Because of the unprecedented versatility of the technique, a broad range of nanoobjects, including molecules, particles, micelles, vesicles and others with diverse chemistry and architecture can be used as building blocks for LbL assemblies, opening various routes for inclusion and delivery of functional molecules to/from LbL films. Moreover, the LbL technique continues to show its power in constructing three-dimensional (3D) delivery containers, in which LbL walls can additionally control delivery of functional molecules incorporated in the capsule interior. In this chapter, we discuss recent progress in the use of LbL assemblies to control release of therapeutic compounds via diffusion, hydrolytic degradation, pH, ionic strength or temperature variations, application of light, ultrasound, electric and magnetic field stimuli, redox activation or biological stimuli.
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Affiliation(s)
- Svetlana Pavlukhina
- Department of Chemistry Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030 USA
| | - Svetlana Sukhishvili
- Department of Chemistry Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030 USA
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79
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Martinez JS, Lehaf AM, Schlenoff JB, Keller TCS. Cell durotaxis on polyelectrolyte multilayers with photogenerated gradients of modulus. Biomacromolecules 2013; 14:1311-20. [PMID: 23505966 DOI: 10.1021/bm301863a] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Behaviors of rat aortic smooth muscle (A7r5) and human osteosarcoma (U2OS) cells on photo-cross-linked polyelectrolyte multilayers (PEMUs) with uniform, or gradients of, moduli were investigated. The PEMUs were built layer-by-layer with the polycation poly(allylamine hydrochloride) (PAH) and a polyanion poly(acrylic acid) (PAA) that was modified with photoreactive 4-(2-hydroxyethoxy) benzophenone (PAABp). PEMUs with different uniform and gradients of modulus were generated by varying the time of uniform ultraviolet light exposure and by exposure through optical density gradient filters. Analysis of adhesion, morphology, cytoskeletal organization, and motility of the cells on the PEMUs revealed that A7r5 cells established a polarized orientation toward increasing modulus on shallow modulus gradients (approximately 4.7 MPa mm(-1)) and durotaxed toward stiffer regions on steeper gradients (approximately 55 MPa mm(-1)). In contrast, U2OS cells exhibited little orientation or durotaxis on modulus gradients. These results demonstrate the utility of photo-cross-linked PEMUs to direct vascular and osteoblast cell behavior, a potential application for PEMU coatings on biomedical implants.
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Affiliation(s)
- Jessica S Martinez
- Department of Biological Science, Florida State University, Tallahassee, Florida 32306, United States
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80
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Chen F, Dai D, Yang J, Fei Z, Zhong M. Controlled Synthesis of Polyelectrolytes by 4-Cyanopentanoic Acid Dithiobenzoate Mediated RAFT Polymerization. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2013. [DOI: 10.1080/10601325.2013.814329] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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81
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Ji J, Shen J. Electrostatic Self-assemble and Nanomedicine. CONFERENCE PROCEEDINGS : ... ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL CONFERENCE 2012; 2006:720-2. [PMID: 17282284 DOI: 10.1109/iembs.2005.1616515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Electrostatic self-assemble (ESA), which based on the alternating physisorption of oppositely charged polyelectrolyte, appears to be a promising method in preparing nanolayer films of biopolymers and controlling the structures and properties in nanoscale. It provides great potential in surface design of nanolayer for bioactive coordinated coating for biomedical device, drug delivery systems and novel gene delivery systems. Although biomedical device developments have increased the quality and life expectancy of patients, the recognition of a foreign material by living organism is still a problem, as it often leads to a serial of adverse reactions, such as thrombus formation and complement activation, etc. The new strategies in this regard aim at surface tailoring of biomaterials in nanoscale to present different biologically activity. Self-assembling of polymers has been increasingly explored for the preparation of well-defined surfaces and interfaces in recent years [1]. Electrostatic self-assemble (ESA), which based on the alternating physisorption of oppositely charged polyelectrolyte, appears to be a promising method in preparing multilayer films of biopolymers [2]. The buildup of such layer is easy and the method can be used whatever the shape of the solid. The procedure may be carried out not only with linear polyions and boladiions, but also with DNA, proteins, virus, ceramics, and charged nanoparticles. Successful protein/polyion multilayer assembly provides new possibilities in the line of efforts to create a method of organizing proteins in layers and to build up such layers following ;molecular architecture' plans [3]. The method was extended to build up protein superlattices, i.e.
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Affiliation(s)
- Jian Ji
- Department of Polymer Science, Zhejiang University, 310027, Hangzhou, China (e-mail: jijian@jzju. Edu.cn)
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82
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Pavlukhina SV, Kaplan JB, Xu L, Chang W, Yu X, Madhyastha S, Yakandawala N, Mentbayeva A, Khan B, Sukhishvili SA. Noneluting enzymatic antibiofilm coatings. ACS APPLIED MATERIALS & INTERFACES 2012; 4:4708-16. [PMID: 22909396 PMCID: PMC3459334 DOI: 10.1021/am3010847] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We developed a highly efficient, biocompatible surface coating that disperses bacterial biofilms through enzymatic cleavage of the extracellular biofilm matrix. The coating was fabricated by binding the naturally existing enzyme dispersin B (DspB) to surface-attached polymer matrices constructed via a layer-by-layer (LbL) deposition technique. LbL matrices were assembled through electrostatic interactions of poly(allylamine hydrochloride) (PAH) and poly(methacrylic acid) (PMAA), followed by chemical cross-linking with glutaraldehyde and pH-triggered removal of PMAA, producing a stable PAH hydrogel matrix used for DspB loading. The amount of DspB loaded increased linearly with the number of PAH layers in surface hydrogels. DspB was retained within these coatings in the pH range from 4 to 7.5. DspB-loaded coatings inhibited biofilm formation by two clinical strains of Staphylococcus epidermidis. Biofilm inhibition was ≥98% compared to mock-loaded coatings as determined by CFU enumeration. In addition, DspB-loaded coatings did not inhibit attachment or growth of cultured human osteoblast cells. We suggest that the use of DspB-loaded multilayer coatings presents a promising method for creating biocompatible surfaces with high antibiofilm efficiency, especially when combined with conventional antimicrobial treatment of dispersed bacteria.
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Affiliation(s)
- Svetlana V. Pavlukhina
- Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Jeffrey B. Kaplan
- Department of Oral Biology, New Jersey Dental School, University of Medicine and Dentistry of New Jersey, Newark, NJ 07103, USA
| | - Li Xu
- Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Wei Chang
- Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Xiaojun Yu
- Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Srinivasa Madhyastha
- Kane Biotech Inc., 162–196 Innovation Drive, Winnipeg, MB, Canada R3T 2N2, Canada
| | | | - Almagul Mentbayeva
- Department of Chemistry, 71, Al-Farabi Ave, Kazakh National University, Almaty, 050038, Kazakhstan
| | - Babar Khan
- Department of Oral Biology, New Jersey Dental School, University of Medicine and Dentistry of New Jersey, Newark, NJ 07103, USA
| | - Svetlana A. Sukhishvili
- Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
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83
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Fast and long-acting antibacterial properties of chitosan-Ag/polyvinylpyrrolidone nanocomposite films. Carbohydr Polym 2012; 90:8-15. [DOI: 10.1016/j.carbpol.2012.03.080] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 03/22/2012] [Accepted: 03/24/2012] [Indexed: 11/23/2022]
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84
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Yang WJ, Pranantyo D, Neoh KG, Kang ET, Teo SLM, Rittschof D. Layer-by-Layer Click Deposition of Functional Polymer Coatings for Combating Marine Biofouling. Biomacromolecules 2012; 13:2769-80. [DOI: 10.1021/bm300757e] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Wen Jing Yang
- NUS Graduate
School for Integrative Science and Engineering, National University of Singapore, Kent Ridge, Singapore
117576
| | - Dicky Pranantyo
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore, 119260
| | - Koon-Gee Neoh
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore, 119260
| | - En-Tang Kang
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore, 119260
| | - Serena Lay-Ming Teo
- Tropical Marine Science
Institute, National University of Singapore, Kent Ridge, Singapore, 119223
| | - Daniel Rittschof
- Nicholas School of
the Environment, Duke University Marine Laboratory, 135 Duke Marine Lab Road
Beaufort, North Carolina 28516-9721, United States
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85
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Blaszykowski C, Sheikh S, Thompson M. Surface chemistry to minimize fouling from blood-based fluids. Chem Soc Rev 2012; 41:5599-612. [PMID: 22772072 DOI: 10.1039/c2cs35170f] [Citation(s) in RCA: 217] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Upon contact with bodily fluids/tissues, exogenous materials spontaneously develop a layer of proteins on their surface. In the case of biomedical implants and equipment, biological processes with deleterious effects may ensue. For biosensing platforms, it is synonymous with an overwhelming background signal that prevents the detection/quantification of target analytes present in considerably lower concentrations. To address this ubiquitous problem, tremendous efforts have been dedicated over the years to engineer protein-resistant coatings. There is now extensive literature available on stealth organic adlayers able to minimize fouling down to a few ng cm(-2), however from technologically irrelevant single-protein buffered solutions. Unfortunately, few coatings have been reported to present such level of performance when exposed to highly complex proteinaceous, real-world media such as blood serum and plasma, even diluted. Herein, we concisely review the surface chemistry developed to date to minimize fouling from these considerably more challenging blood-based fluids. Adsorption dynamics is also discussed.
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Affiliation(s)
- Christophe Blaszykowski
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S 3H6
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86
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Zhang W, Shi X, Huang J, Zhang Y, Wu Z, Xian Y. Bacitracin-conjugated superparamagnetic iron oxide nanoparticles: synthesis, characterization and antibacterial activity. Chemphyschem 2012; 13:3388-96. [PMID: 22753190 DOI: 10.1002/cphc.201200161] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Indexed: 11/12/2022]
Abstract
Bacitracin-conjugated superparamagnetic iron oxide (Fe(3)O(4)) nanoparticles were prepared by click chemistry and their antibacterial activity was investigated. After functionalization with hydrophilic and biocompatible poly(acrylic acid), water-soluble Fe(3)O(4) nanoparticles were obtained. Propargylated Fe(3)O(4) nanoparticles were then synthesized by carbodiimide reaction of propargylamine with the carboxyl groups on the surface of the iron oxide nanoparticles. By further reaction with N(3)-bacitracin in a Cu(I)-catalyzed azide-alkyne cycloaddition, the magnetic Fe(3)O(4) nanoparticles were modified with the peptide bacitracin. The functionalized magnetic nanoparticles were characterized by powder X-ray diffraction, X-ray photoelectron spectroscopy, TEM, zeta-potential analysis, FTIR spectroscopy and vibrating-sample magnetometry. Cell cytotoxicity tests indicate that bacitracin-conjugated Fe(3)O(4) nanoparticles show very low cytotoxicity to human fibroblast cells, even at relatively high concentrations. In view of the antibacterial activity of bacitracin, the biofunctionalized Fe(3)O(4) nanoparticles exhibit an antibacterial effect against both Gram-positive and Gram-negative organisms, which is even higher than that of bacitracin itself. The enhanced antibacterial activity of the magnetic nanocomposites allows the dosage and the side effects of the antibiotic to be reduced. Due to the antibacterial effect and magnetism, the bacitracin-functionalized magnetic nanoparticles have potential application in magnetic-targeting biomedical applications.
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Affiliation(s)
- Wenjing Zhang
- Chemistry, East China Normal University, 3663 Zhongshan Road (N), Shanghai 200062, PR China
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87
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Cado G, Kerdjoudj H, Chassepot A, Lefort M, Benmlih K, Hemmerlé J, Voegel JC, Jierry L, Schaaf P, Frère Y, Boulmedais F. Polysaccharide films built by simultaneous or alternate spray: a rapid way to engineer biomaterial surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:8470-8478. [PMID: 22554108 DOI: 10.1021/la300563s] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We investigated polysaccharide films obtained by simultaneous and alternate spraying of a chitosan (CHI) solution as polycation and hyaluronic acid (HA), alginate (ALG), and chondroitin sulfate (CS) solutions as polyanions. For simultaneous spraying, the film thickness increases linearly with the cumulative spraying time and passes through a maximum for polyanion/CHI molar charge ratios lying between 0.6 and 1.2. The size of polyanion/CHI complexes formed in solution was compared with the simultaneously sprayed film growth rate as a function of the polyanion/CHI molar charge ratio. A good correlation was found. This suggests the importance of polyanion/polycation complexation in the simultaneous spraying process. Depending on the system, the film topography is either liquid-like or granular. Film biocompatibility was evaluated using human gingival fibroblasts. A small or no difference is observed in cell viability and adhesion between the two deposition processes. The CHI/HA system appears to be the best for cell adhesion inducing the clustering of CD44, a cell surface HA receptor, at the membrane of cells. Simultaneous or alternate spraying of CHI/HA appears thus to be a convenient and fast procedure for biomaterial surface modifications.
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Affiliation(s)
- G Cado
- Centre National de la Recherche Scientifique, Institut Charles Sadron, UPR 22, 23 rue du Loess, 67034 Strasbourg Cedex, France
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88
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Falentin-Daudré C, Faure E, Svaldo-Lanero T, Farina F, Jérôme C, Van De Weerdt C, Martial J, Duwez AS, Detrembleur C. Antibacterial polyelectrolyte micelles for coating stainless steel. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:7233-7241. [PMID: 22506542 DOI: 10.1021/la3003965] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In this study, we report on the original synthesis and characterization of novel antimicrobial coatings for stainless steel by alternating the deposition of aqueous solutions of positively charged polyelectrolyte micelles doped with silver-based nanoparticles with a polyanion. The micelles are formed by electrostatic interaction between two oppositely charged polymers: a polycation bearing 3,4-dihydroxyphenylalanine units (DOPA, a major component of natural adhesives) and a polyanion (poly(styrene sulfonate), PSS) without using any block copolymer. DOPA units are exploited for their well-known ability to anchor to stainless steel and to form and stabilize biocidal silver nanoparticles (Ag(0)). The chlorine counteranion of the polycation forms and stabilizes biocidal silver chloride nanoparticles (AgCl). We demonstrate that two layers of micelles (alternated by PSS) doped with silver particles are enough to impart to the surface strong antibacterial activity against gram-negative E. coli. Moreover, micelles that are reservoirs of biocidal Ag(+) can be easily reactivated after depletion. This novel water-based approach is convenient, simple, and attractive for industrial applications.
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Affiliation(s)
- Céline Falentin-Daudré
- Center for Education and Research on Macromolecules, Chemistry Department, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
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89
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Semi-interpenetrating network of polyethylene glycol and photocrosslinkable chitosan as an in-situ-forming nerve adhesive. Acta Biomater 2012; 8:1849-58. [PMID: 22310507 DOI: 10.1016/j.actbio.2012.01.022] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2011] [Revised: 01/06/2012] [Accepted: 01/16/2012] [Indexed: 01/30/2023]
Abstract
An ideal adhesive for anastomosis of severed peripheral nerves should tolerate strains imposed on rejoined nerves. We use blends of photocrosslinkable 4-azidobenzoic acid-modified chitosan (Az-C) and polyethylene glycol (PEG) as a new in-situ-forming bioadhesive for anastomosing and stabilizing the injured nerves. Cryo-scanning electron microscopy suggests that the polymer blends form a semi-interpenetrating network (semi-IPN), where PEG interpenetrates the Az-C network and reinforces it. Az-C/PEG semi-IPN gels have higher storage moduli than Az-C gel alone and fibrin glue. Nerves anastomosed with an Az-C/PEG gel tolerate a higher force than those with fibrin glue prior to failure. A series of ex vivo and in vitro cell experiments indicate the Az-C/PEG gels are compatible with nerve tissues and cells. In addition, Az-C/PEG gels release PEG over a prolonged period, providing sustained delivery of PEG, a potential aid for nerve cell preservation through membrane fusion. Az-C/PEG semi-IPN gels are promising bioadhesives for repairing severed peripheral nerves not only because of their improved mechanical properties but also because of their therapeutic potential and tissue compatibility.
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90
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Huang CJ, Mi L, Jiang S. Interactions of alginate-producing and -deficient Pseudomonas aeruginosa with zwitterionic polymers. Biomaterials 2012; 33:3626-31. [DOI: 10.1016/j.biomaterials.2012.01.059] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Accepted: 01/31/2012] [Indexed: 10/28/2022]
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91
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Huang Y, Lin D, Jiang Q, Zhang W, Guo S, Xiao P, Zheng S, Wang X, Chen H, Zhang HY, Deng L, Xing J, Du Q, Dong A, Liang Z. Binary and ternary complexes based on polycaprolactone-graft-poly (N, N-dimethylaminoethyl methacrylate) for targeted siRNA delivery. Biomaterials 2012; 33:4653-64. [PMID: 22480869 DOI: 10.1016/j.biomaterials.2012.02.052] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 02/27/2012] [Indexed: 01/13/2023]
Abstract
Small interfering RNA (siRNA) is a powerful gene silencing tool and has promising prospects in basic research and the development of therapeutic reagents. However, the lack of an effective and safe tool for siRNA delivery hampers its application. Here, we introduced binary and ternary complexes that effectively mediated siRNA-targeted gene silencing. Both complexes showed excellent siRNA loading even at the low N/P/C ratio of 3:1:0. FACS and confocal microscopy demonstrated that nearly all cells robustly internalized siRNAs into the cytoplasm, where RNA interference (RNAi) occurred. Luciferase assay and Western blot verified that silencing efficacy reached >80%, and introducing folate onto the ternary complexes further enhanced silencing efficacy by about 10% over those without folate at the same N/P/C ratio. In addition, the coating of PGA-g-mPEG decreased the zeta potential almost to electroneutrality, and the MTT assay showed decreased cytotoxicity. In vivo distribution measurement and histochemical analysis executed in C57BL/6 and Hela tumor-bearing BALB/c nude mice showed that complexes accumulated in the liver, lungs, pancreas and tumors and were released slowly for a long time after intravenous injection. Furthermore, ternary complexes showed higher siRNA fluorescence intensity than binary complexes at the same N/P ratio in tumor tissues, those with folate delivered more siRNAs to tumors than those without folate, and more folate induced more siRNA transport to tumors. In addition, in vivo functional study showed that both binary and ternary complexes mediated down-regulation of ApoB in liver efficiently and consequently blocked the secretion of fatty acids into the blood, resulted in lipid accumulation in liver, liver steatosis and hepatic dysfunction. In conclusion, these complexes provided a powerful means of administration for siRNA-mediated treatment of liver-related diseases and various cancers, especial for pancreatic and cervical cancer.
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Affiliation(s)
- Yuanyu Huang
- Laboratory of Nucleic Acid Technology, Institute of Molecular Medicine, Peking University, Beijing 100871, China
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92
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Tsai WB, Chen YH, Chien HW. Collaborative Cell-Resistant Properties of Polyelectrolyte Multilayer Films and Surface PEGylation on Reducing Cell Adhesion to Cytophilic Surfaces. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 20:1611-28. [DOI: 10.1163/092050609x12464345178248] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Wei-Bor Tsai
- a Department of Chemical Engineering, National Taiwan University, No. 1 Roosevelt Road, Sec. 4, Taipei, 106, Taiwan
| | - Ying-Hao Chen
- b Department of Chemical Engineering, National Taiwan University, No. 1 Roosevelt Road, Sec. 4, Taipei, 106, Taiwan
| | - Hsiu-Wen Chien
- c Department of Chemical Engineering, National Taiwan University, No. 1 Roosevelt Road, Sec. 4, Taipei, 106, Taiwan
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93
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Meyers SR, Grinstaff MW. Biocompatible and bioactive surface modifications for prolonged in vivo efficacy. Chem Rev 2012; 112:1615-32. [PMID: 22007787 PMCID: PMC3878818 DOI: 10.1021/cr2000916] [Citation(s) in RCA: 165] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Steven R. Meyers
- Departments of Biomedical Engineering and Chemistry, Boston University, Boston, MA 02215, USA
| | - Mark W. Grinstaff
- Departments of Biomedical Engineering and Chemistry, Boston University, Boston, MA 02215, USA
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94
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Lawrence NJ, Wells-Kingsbury JM, Ihrig MM, Fangman TE, Namavar F, Cheung CL. Controlling E. coli adhesion on high-k dielectric bioceramics films using poly(amino acid) multilayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:4301-4308. [PMID: 22339263 DOI: 10.1021/la2033725] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The influence of high-k dielectric bioceramics with poly(amino acid) multilayer coatings on the adhesion behavior of Escherichia coli (E. coli) was studied by evaluating the density of bacteria coverage on the surfaces of these materials. A biofilm forming K-12 strain (PHL628), a wild-type strain (JM109), and an engineered strain (XL1-Blue) of E. coli were examined for their adherence to zirconium oxide (ZrO(2)) and tantalum oxide (Ta(2)O(5)) surfaces functionalized with single and multiple layers of poly(amino acid) polyelectrolytes made by the layer-by-layer (LBL) deposition. Two poly(amino acids), poly(l-arginine) (PARG) and poly(l-aspartic acid) (PASP), were chosen for the functionalization schemes. All three strains were found to grow and preferentially adhere to bare bioceramic film surfaces over bare glass slides. The bioceramic and glass surfaces functionalized with positively charged poly(amino acid) top layers were observed to enhance the adhesion of these bacteria by up to 4-fold in terms of bacteria surface coverage. Minimal bacteria coverage was detected on surfaces functionalized with negatively charged poly(amino acid) top layers. The effect of different poly(amino acid) coatings to promote or minimize bacterial adhesion was observed to be drastically enhanced with the bioceramic substrates than with glass. Such observed enhancements were postulated to be attributed to the formation of higher density of poly(amino acids) coatings enabled by the high dielectric strength (k) of these bioceramics. The multilayer poly(amino acid) functionalization scheme was successfully applied to utilize this finding for micropatterning E. coli on bioceramic thin films.
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Affiliation(s)
- Neil J Lawrence
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
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95
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Wu B, Li C, Yang H, Liu G, Zhang G. Formation of Polyelectrolyte Multilayers by Flexible and Semiflexible Chains. J Phys Chem B 2012; 116:3106-14. [DOI: 10.1021/jp212621h] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Bo Wu
- Hefei National Laboratory for
Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei,
P. R. China 230026
| | - Chunliang Li
- Hefei National Laboratory for
Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei,
P. R. China 230026
| | - Haiyang Yang
- Department
of Polymer Science
and Engineering, University of Science and Technology of China, Hefei, P. R. China 230026
| | - Guangming Liu
- Hefei National Laboratory for
Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei,
P. R. China 230026
| | - Guangzhao Zhang
- Faculty of Materials Science and
Engineering, South China University of Technology, Guangzhou, P. R. China 510640
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96
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de Paiva RG, de Moraes MA, de Godoi FC, Beppu MM. Multilayer biopolymer membranes containing copper for antibacterial applications. J Appl Polym Sci 2012. [DOI: 10.1002/app.36666] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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97
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Stephen Inbaraj B, Tsai TY, Chen BH. Synthesis, characterization and antibacterial activity of superparamagnetic nanoparticles modified with glycol chitosan. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2012; 13:015002. [PMID: 27877469 PMCID: PMC5090294 DOI: 10.1088/1468-6996/13/1/015002] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2011] [Revised: 02/02/2012] [Accepted: 11/08/2011] [Indexed: 05/24/2023]
Abstract
Iron oxide nanoparticles (IONPs) were synthesized by coprecipitation of iron salts in alkali media followed by coating with glycol chitosan (GC-coated IONPs). Both bare and GC-coated IONPs were subsequently characterized and evaluated for their antibacterial activity. Comparison of Fourier transform infrared spectra and thermogravimetric data of bare and GC-coated IONPs confirmed the presence of GC coating on IONPs. Magnetization curves showed that both bare and GC-coated IONPs are superparamagnetic and have saturation magnetizations of 70.3 and 59.8 emu g-1, respectively. The IONP size was measured as ∼8-9 nm by transmission electron microscopy, and their crystal structure was assigned to magnetite from x-ray diffraction patterns. Both bare and GC-coated IONPs inhibited the growths of Escherichia coli ATCC 8739 and Salmonella enteritidis SE 01 bacteria better than the antibiotics linezolid and cefaclor, as evaluated by the agar dilution assay. GC-coated IONPs showed higher potency against E. coli O157:H7 and Staphylococcus aureus ATCC 10832 than bare IONPs. Given their biocompatibility and antibacterial properties, GC-coated IONPs are a potential nanomaterial for in vivo applications.
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Affiliation(s)
| | - Tsung-Yu Tsai
- Department of Food Science, Fu Jen University, Taipei 242, Taiwan
| | - Bing-Huei Chen
- Department of Food Science, Fu Jen University, Taipei 242, Taiwan
- Graduate Institute of Medicine, Fu Jen University, Taipei 242, Taiwan
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98
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Vreuls C, Zocchi G, Vandegaart H, Faure E, Detrembleur C, Duwez AS, Martial J, Van De Weerdt C. Biomolecule-based antibacterial coating on a stainless steel surface: multilayer film build-up optimization and stability study. BIOFOULING 2012; 28:395-404. [PMID: 22530698 DOI: 10.1080/08927014.2012.681304] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The goal of this paper was to establish the durability profile of antibacterial multilayer thin films under storage and usage conditions. Thin films were built on stainless steel (SS) by means of a layer-by-layer process alternating a negatively charged polyelectrolyte, polyacrylic acid, with a cationic antibacterial peptide, nisin. SS coupons coated with the antibacterial film were challenged under environmental and usage conditions likely to be encountered in real-world applications. The change in antibacterial activity elicited by the challenge was used as an indicator of multilayer film resistance. Antibacterial SS samples could be stored for several weeks at 4°C in ambient air and antibacterial films were resistant to dipping and mild wiping in water and neutral detergent. The multilayer coating showed some weaknesses, however, that need to be addressed.
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Affiliation(s)
- C Vreuls
- Molecular Biology and Genetic Engineering, GIGA-R, University of Liège, Liège, Belgium.
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99
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Ye C, Shchepelina O, Calabrese R, Drachuk I, Kaplan DL, Tsukruk VV. Robust and responsive silk ionomer microcapsules. Biomacromolecules 2011; 12:4319-25. [PMID: 22050007 PMCID: PMC3404390 DOI: 10.1021/bm201246f] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We demonstrate the assembly of extremely robust and pH-responsive thin shell LbL microcapsules from silk fibroin counterparts modified with poly(lysine) and poly(glutamic) acid, which are based on biocompatible silk ionomer materials in contrast with usually exploited synthetic polyelectrolytes. The microcapsules are extremely stable in an unusually wide pH range from 1.5 to 12.0 and show a remarkable degree of reversible swelling/deswelling response in dimensions, as exposed to extreme acidic and basic conditions. These changes are accompanied by reversible variations in shell permeability that can be utilized for pH-controlled loading and unloading of large macromolecules. Finally, we confirmed that these shells can be utilized to encapsulate yeast cells with a viability rate much higher than that for traditional synthetic polyelectrolytes.
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Affiliation(s)
- Chunhong Ye
- School of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, P. R. China
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332 (USA)
| | - Olga Shchepelina
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332 (USA)
| | - Rossella Calabrese
- Department of Biomedical Engineering, Tufts University, 4, Colby street, Medford, MA 02155 (USA)
| | - Irina Drachuk
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332 (USA)
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, 4, Colby street, Medford, MA 02155 (USA)
| | - Vladimir V. Tsukruk
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332 (USA)
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100
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Ball V, Nguyen I, Haupt M, Oehr C, Arnoult C, Toniazzo V, Ruch D. The reduction of Ag+ in metallic silver on pseudomelanin films allows for antibacterial activity but does not imply unpaired electrons. J Colloid Interface Sci 2011; 364:359-65. [DOI: 10.1016/j.jcis.2011.08.038] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Revised: 08/14/2011] [Accepted: 08/16/2011] [Indexed: 11/25/2022]
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