Robust bio-inspired antibacterial surfaces based on the covalent binding of peptides on functional atmospheric plasma thin films

Mauchauffé, Rodolphe; Moreno‐Couranjou, Maryline; Boscher, Nicolas D.; Weerdt, Cécile Van de; Duwez, Anne‐Sophie; Choquet, Patrick

doi:10.1039/c4tb00503a

Cited by 38 publications

(42 citation statements)

References 50 publications

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“…Fig. 34,35 This observation indicates the successful coating of PDA on the PSf support. After PDA deposition, a small peak at 1739 cm -1 appears and can be assigned to C=O group, which is formed by oxidation of the catechol groups into quinine during the self-polymerization.…”

Section: Ftir and Xps Analysesmentioning

confidence: 75%

Fabrication of an aquaporin-based forward osmosis membrane through covalent bonding of a lipid bilayer to a microporous support

et al. 2015

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AquaporinZ (AqpZ)-containing, planar, biomimetic membranes hold great application potential in water purification and seawater desalination, due to the excellent permeability and selectivity of AqpZ. However, there remain many challenges to production of robust and defect-free supported lipid bilayer (SLB) biomimetic membranes. By forming amide bonds between the lipid bilayer and microporous substrate, we fabricated an AqpZ-incorporated SLB forward osmosis (FO) membrane, with a large area of 36 cm 2 . With deionized water and 2 mol/L MgCl 2 draw solution, the AqpZ-incorporated biomimetic membrane exhibited a water flux of ~19.2 L·m −2 ·h −1 (LMH) and a reverse solute flux of ~3.2 g·m −2 ·h −1 (gMH). When positively charged phospholipid 1,2-dioleoyl-3-trimethylammonium-propane (DOTAP) was blended in the 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE) bilayer, a higher flux (~23.1 LMH) could be reached accompanied with a constant reverse salt flux of 3.1 gMH, due to more AqpZ being embedded in the mixed bilayer. From nanofiltration (NF) test, the water permeability (A) could reach 6.31 LMH/bar with a relative low solute permeability (B) of 1.7 LMH for AqpZ-DOPE/DOTAP SLB membrane. When rinsed by a 0.24 mmol/L TritonX-100 (TX-100) surfactant solution, water flux and reverse salt flux of the biomimetic membrane with covalent bond only slightly increased, whereas the membrane without covalent bonds showed significant increase in both water flux and reverse salt flux after TX-100 treatment.This paper presented an effective method for preparation of biomimetic FO membrane with good separation performance as well as excellent stability and durability. Graphical Abstract IntroductionIn recent decades, forward osmosis (FO) has gradually emerged as one of the most promising water purification and desalination technologies in water supply, energy generation, and food processing. 1-4 Unlike pressure-driven membrane processes, like reverse osmosis (RO) and nanofiltration (NF), FO is a naturallyoccurring osmosis-driven membrane process that takes advantage of the osmotic pressure gradient to impel water across a semipermeable membrane, from the feed solution side with high chemical potential,

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Section: Ftir and Xps Analysesmentioning

confidence: 75%

Fabrication of an aquaporin-based forward osmosis membrane through covalent bonding of a lipid bilayer to a microporous support

et al. 2015

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“…[ 17 ] Surfaces with functional groups, e.g., amine, carboxylic, propargyl, aldehyde or epoxy groups, are able to form covalent bonds using a linker or through direct reaction, when possible, with the functional groups present in the enzymes, i.e., amine, carboxylic, thiol or imidazole groups, in aqueous buffer at room temperature. [18][19][20][21][22] Surface functionalization can be achieved through many different methods. Among them, chemical vapor deposition (CVD) processes, which are solvent-free environmentally friendly methods, provide several convenient routes for the conformal deposition of functional polymer thin fi lms.…”

Section: Introductionmentioning

confidence: 99%

Self‐Defensive Coating for Antibiotics Degradation—Atmospheric Pressure Chemical Vapor Deposition of Functional and Conformal Coatings for the Immobilization of Enzymes

Bonot

Mauchauffé

Boscher

et al. 2015

Adv Materials Inter

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Conformal epoxy‐rich coatings are synthesized by plasma initiated chain‐growth polymerization of glycidyl methacrylate via a newly developed Plasma initiated chemical vapor deposition method at atmospheric pressure to provide a functional platform for the immobilization of enzymes degrading antibiotics (laccase and β‐lactamase). In addition to enhance the enzymes activity duration and intensity, surface immobilization is also leading to enzyme structure rigidification, allowing them to endure mechanical stresses generated by a laminar water flow of 30 km h−1, and this with no reduction of their enzymatic activity. Self‐defensive surface properties against microorganism's adhesion, preventing the enzyme alteration and improving the degradation performances, are obtained via surface saturation with Tween 20. The developed method is scaled up to high specific surface high‐density polyethylene biochips commonly used in water treatment, and shows self‐defensive abilities and particularly long lasting efficient degradation properties.

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“…Within the above limitations, this value is not too far from the experimental FT-IR measurements around 1731 cm -1 reported in Figure 4 (top) on a COOH functionalized silica layer. 23 In a recent work 48 on the mesoporous silica (SBA-15) functionalized with butyric acid (CH 3 -(CH 2 ) 2 -COOH) a dependency of the C=O stretching frequency on the H-bond interactions with the surface silanol groups has been observed and discussed. Three cases were reported of the C=O stretching frequency value (1720, 1740 and 1750 cm -1 ) as a function of the treatment temperature of the SBA-15 Figure 3) in which the NH 2 group is acting exclusively as H-bond acceptor.…”

Section: Ir Spectramentioning

confidence: 99%

“…COOH-rich coatings have been achieved from the plasma co-polymerization of maleic anhydride and vinyltrimethoxylane, 23 whereas the plasma polymerization of 3-aminopropyltriethoxasilane (APTES) gives rise to NH 2 -rich layers. 47 Other data from a variety of experimental measurements on functionalized silica samples will also be discussed to compare with the computed data.…”

Section: Ir Spectramentioning

confidence: 99%

“…Recently, an experimental investigation on nisin (an antimicrobial peptide) covalently grafted to a stainless steel substrate, through functionalization of the top thin layer with carboxylic groups (via atmospheric pressure dielectric barrier discharge plasma 23 ) has been published. In this context, simulations can be very useful since they can act as a "virtual microscope" to study the local environment of the surface functionalities, their interactions and their effect on experimental measurements.…”

Section: Introductionmentioning

confidence: 99%

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Computational Study of Acidic and Basic Functionalized Crystalline Silica Surfaces as a Model for Biomaterial Interfaces

et al. 2015

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Robust bio-inspired antibacterial surfaces based on the covalent binding of peptides on functional atmospheric plasma thin films

Cited by 38 publications

References 50 publications

Fabrication of an aquaporin-based forward osmosis membrane through covalent bonding of a lipid bilayer to a microporous support

Fabrication of an aquaporin-based forward osmosis membrane through covalent bonding of a lipid bilayer to a microporous support

Self‐Defensive Coating for Antibiotics Degradation—Atmospheric Pressure Chemical Vapor Deposition of Functional and Conformal Coatings for the Immobilization of Enzymes

Computational Study of Acidic and Basic Functionalized Crystalline Silica Surfaces as a Model for Biomaterial Interfaces

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