Wound Dressings Coated with Silver Nanoparticles and Essential Oils for The Management of Wound Infections

Infection represents one of the major risk factors in persistent and difficult to treat wounds. This study focuses on developing antimicrobial wound dressings coated with silver nanoparticles, sodium alginate and different essential oils, to avoid wound infection and biofilm formation. The design of the wound dressings was done by the dip coating method. The characteristics of the developed materials were analysed by physicochemical (FT-IR, XRD, SEM, TEM) and biological (antimicrobial tests) approaches. The results demonstrated uniform silver nanoparticle formation on the substrate, and the developed nanomodified dressings were proven to have increased antimicrobial and antibiofilm potential. The developed wound dressings based on silver nanoparticles, sodium alginate and essential oils have real potential in treating infections, and can be investigated as an efficient alternative to antibiotics and topical preparations for wound management.

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Effect of Silver Nanoparticles on the Mechanical and Physical Properties of Epoxy Based Silane Coupling Agent

Journal of Nano Research ◽

10.4028/www.scientific.net/jnanor.26.153 ◽

2013 ◽

Vol 26 ◽

pp. 153-158

Author(s):

B. Vengadaesvaran ◽

N. Arun ◽

R. Chanthiriga ◽

A.R. Bushroa ◽

S. Ramis Rau ◽

...

Keyword(s):

Silver Nanoparticles ◽

Silver Nanoparticle ◽

Room Temperature ◽

Scratch Test ◽

Dip Coating ◽

Precipitation Method ◽

Transmission Electron ◽

Mechanical And Physical Properties ◽

Coating Method ◽

Dip Coating Method

In this work, silver nanoparticles were synthesized using the precipitation method at room temperature. The size of the silver nanoparticle was analyzed using transmission electron microscope and found to be in the range of 20 to 40 nm. The multi-functional transparent film on glass substrate was prepared using silver nanoparticle solutions and 3-Glycidyloxypropyltrimethoxy silane (GLYMO) by dip coating method. Ultraviolet visible spectroscopy measurement shows low absorbance thus confirming high transparency level. The critical load obtained from the micro-scratch test showed an increase from 3000 mN to 3319 mN.

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Silver Nanoparticle-Coated Polyhydroxyalkanoate Based Electrospun Fibers for Wound Dressing Applications

Materials ◽

10.3390/ma14174907 ◽

2021 ◽

Vol 14 (17) ◽

pp. 4907

Author(s):

Ozlem Ipek Kalaoglu-Altan ◽

Havva Baskan ◽

Timo Meireman ◽

Pooja Basnett ◽

Bahareh Azimi ◽

...

Keyword(s):

Wound Dressing ◽

High Performance ◽

High Surface ◽

High Surface Area ◽

Human Keratinocytes ◽

Dip Coating ◽

Wound Dressings ◽

Coating Method ◽

Dip Coating Method

Wound dressings are high performance and high value products which can improve the regeneration of damaged skin. In these products, bioresorption and biocompatibility play a key role. The aim of this study is to provide progress in this area via nanofabrication and antimicrobial natural materials. Polyhydroxyalkanoates (PHAs) are a bio-based family of polymers that possess high biocompatibility and skin regenerative properties. In this study, a blend of poly(3-hydroxybutyrate) (P(3HB)) and poly(3-hydroxyoctanoate-co-3-hydroxy decanoate) (P(3HO-co-3HD)) was electrospun into P(3HB))/P(3HO-co-3HD) nanofibers to obtain materials with a high surface area and good handling performance. The nanofibers were then modified with silver nanoparticles (AgNPs) via the dip-coating method. The silver-containing nanofiber meshes showed good cytocompatibility and interesting immunomodulatory properties in vitro, together with the capability of stimulating the human beta defensin 2 and cytokeratin expression in human keratinocytes (HaCaT cells), which makes them promising materials for wound dressing applications.

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Porous Gel Coatings Obtained by Phase Separation in ORMOSIL System

MRS Proceedings ◽

10.1557/proc-628-cc7.6 ◽

2000 ◽

Vol 628 ◽

Cited By ~ 1

Author(s):

Kazuki Nakanishi ◽

Souichi Kumon ◽

Kazuyuki Hirao ◽

Hiroshi Jinnai

Keyword(s):

Phase Separation ◽

Reaction Time ◽

Volume Fraction ◽

Sol Gel ◽

Reaction Times ◽

Dip Coating ◽

Coating Solution ◽

Coating Method ◽

Gel Phase ◽

Dip Coating Method

ABSTRACTMacroporous silicate thick films were prepared by a sol-gel dip-coating method accompanied by the phase separation using methyl-trimethoxysilane (MTMS), nitric acid and dimethylformamide (DMF) as starting components. The morphology of the film varied to a large extent depending on the time elapsed after the hydrolysis until the dipping of the coating solution. On a glass substrate, the films prepared by early dipping had inhomogeneous submicrometer-sized pores on the surface of the film. At increased reaction times, relatively narrow sized isolated macropores were observed and their size gradually decreased with the increase of reaction time. On a polyester substrate, in contrast, micrometer-sized isolated spherical gel domains were homogeneously deposited by earlier dippings. With an increase of reaction time, the volume fraction of the gel phase increased, then the morphology of the coating transformed into co-continuous gel domains and macropores, and finally inverted into the continuous gel domains with isolated macropores. The overall morphological variation with the reaction time was explained in terms of the phase separation and the structure freezing by the forced gelation, both of which were induced by the evaporation of methanol during the dipping operation.

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Preparation of Polypropylene/PVDF Composite Membrane by Dip-Coating Method

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/1115/1/012028 ◽

2021 ◽

Vol 1115 (1) ◽

pp. 012028

Author(s):

P T P Aryanti ◽

G Trilaksono ◽

A Hotmaida ◽

M A Afifah ◽

F P Pratiwi ◽

...

Keyword(s):

Composite Membrane ◽

Dip Coating ◽

Coating Method ◽

Dip Coating Method

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Characterization of UHMWPE- HAp coating produced by dip coating method on Ti6Al4V alloy

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2021.127091 ◽

2021 ◽

pp. 127091

Author(s):

Gözde Çelebi Efe ◽

Elif Yenilmez ◽

İbrahim Altinsoy ◽

Serbülent Türk ◽

Cuma Bindal

Keyword(s):

Dip Coating ◽

Ti6al4v Alloy ◽

Coating Method ◽

Dip Coating Method

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Effect of annealing temperature on structural and optical properties of nickel oxide thin films by dip coating method

10.1063/5.0029961 ◽

2020 ◽

Author(s):

Latha Jithendrakumar Meenakshi ◽

Balakrishnan Remani Aswathy ◽

Poonthamannil Karunakarapanicker Manoj

Keyword(s):

Thin Films ◽

Optical Properties ◽

Nickel Oxide ◽

Annealing Temperature ◽

Dip Coating ◽

Oxide Thin Films ◽

Structural And Optical Properties ◽

Coating Method ◽

Dip Coating Method ◽

Nickel Oxide Thin Films

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The Effect of Film Thickness and Content on Film Formation from PS/ Nanocomposites Prepared by Dip-Coating Method

Journal of Nanomaterials ◽

10.1155/2012/524343 ◽

2012 ◽

Vol 2012 ◽

pp. 1-17 ◽

Cited By ~ 3

Author(s):

M. Selin Sunay ◽

Onder Pekcan ◽

Saziye Ugur

Keyword(s):

Film Thickness ◽

Elevated Temperatures ◽

Film Formation ◽

Fluorescence Emission ◽

Dip Coating ◽

Atomic Force ◽

Annealing Step ◽

Coating Method ◽

Fluorescence Emission Intensity ◽

Dip Coating Method

Steady-state fluorescence (SSF) technique in conjunction with UV-visible (UVV) technique and atomic force microscope (AFM) was used for studying film formation from TiO2covered nanosized polystyrene (PS) latex particles (320 nm). The effects of film thickness and TiO2content on the film formation and structure properties of PS/TiO2composites were studied. For this purpose, two different sets of PS films with thicknesses of 5 and 20 μm were prepared from pyrene-(P-) labeled PS particles and covered with various layers of TiO2using dip-coating method. These films were then annealed at elevated temperatures above glass transition temperature () of PS in the range of 100–280°C. Fluorescence emission intensity, from P and transmitted light intensity, were measured after each annealing step to monitor the stages of film formation. The results showed that film formation from PS latexes occurs on the top surface of PS/TiO2composites and thus developed independent of TiO2content for both film sets. But the surface morphology of the films was found to vary with both TiO2content and film thickness. After removal of PS, thin films provide a quite ordered porous structure while thick films showed nonporous structure.

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Preparation and properties of polyurethane coatings modified by polysilazane

High Performance Polymers ◽

10.1177/0954008319891758 ◽

2019 ◽

Vol 32 (6) ◽

pp. 611-619 ◽

Cited By ~ 1

Author(s):

Xiaoli Liu ◽

Zhen Ge ◽

Wenguo Zhang ◽

Yunjun Luo

Keyword(s):

Mechanical Property ◽

Photoelectron Spectroscopy ◽

Composite Coatings ◽

Composite Films ◽

Dip Coating ◽

Water Contact ◽

Research Attention ◽

Elongation At Break ◽

Coating Method ◽

Dip Coating Method

Due to their unique physicochemical properties, polysilazanes exhibit excellent performance when combined with some resin matrixes, which had drawn great research attention. In this article, polyurethane (PU) was firstly prepared by polytetrahydrofuran glycol, isophorone diisocyanate, and 1,4-butanediol as main materials. Then, the prepared PU was blended with polysilazane by mixing the two solutions together, which was cured to films via dip-coating method at room temperature. The structure, thermal stability, and surface properties of the composite coatings were investigated by Fourier-transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy, and X-ray photoelectron spectroscopy. The results demonstrated that after modification with polysilazane, the heat resistance, hydrophobicity, and mechanical property of the PU coatings were improved. When the content of polysilazane was 6 wt%, the mechanical property of the composite films was optimized, with a maximum tensile strength of 25.7 MPa and elongation at break of 797%. Meanwhile, the water contact angle of the composite film was 107° and the water absorption reached a minimum of 2.1%, which showed improved hydrophobicity and water resistance.

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