Effect of TEOS plasma polymerization on corn starch/poly(ε-caprolactone) film: characterization, properties and biodegradation

Arolkar, Gauree A.; Jacob, Salgo Merin; Pandiyaraj, K. Navaneetha; Kelkar-Mane, Varsha; Deshmukh, Rajendra R.

doi:10.1039/c5ra23414j

Cited by 19 publications

(7 citation statements)

References 46 publications

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“…Weight loss against number of days was determined (Figure ). Initially, the polymer composite degraded in slower rate and after 3–5 days, it started to degrade rapidly and in 10 days both the PVP–CMC polymer with and without charcoal degraded completely, indicating that the material qualifies as eco‐friendly …”

Section: Resultsmentioning

confidence: 99%

Low‐cost and biodegradable cellulose/PVP/activated carbon composite membrane for brackish water treatment

Ramadoss

Regi

Rahman

et al. 2019

J of Applied Polymer Sci

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A simple fabrication of a biodegradable membrane for use in water purification systems is presented in this work. Sodium carboxymethyl cellulose and PVP are dissolved in water and crosslinked with citric acid. The presence of glycerol has given immense flexibility and mechanical strength to the membrane. The addition of activated charcoal has enhanced its purification and dye adsorption capabilities at room temperature in dark and light conditions. The polymer semiconductor composites are completely soil degradable within a week and the membrane also exhibits good electrical conductivity when compared to the membrane without charcoal. The addition of glycerol has acted as molecular spacer between polymers composite's monomer backbone that allows good electron mobility of 9.9 cm2 V−1 s−1. The dye adsorption efficiency of the material with two commonly used toxic textile dyes is found to be 100% for methyl orange and up to 57% for Rhodamine B within 3 h. The material shows good dye adsorption efficiency under dark and light conditions with acidic, neutral, and alkaline pH. Salt rejection was also found to increase from 25.3 to 64.4% with applied voltage. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48746.

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Section: Resultsmentioning

confidence: 99%

Low‐cost and biodegradable cellulose/PVP/activated carbon composite membrane for brackish water treatment

Ramadoss

Regi

Rahman

et al. 2019

J of Applied Polymer Sci

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“…), and the deposition technique allows even complex geometrical shapes to be covered by thin films with tunable thicknesses ranging from several to hundreds of nanometers. , These characteristics have allowed PPFs to find increasing applications in various fields. For example, plasma polymers have been used to produce barrier layers for the corrosion protection of metals, , in food packaging, − and in controlled drug release. ,− The property of interest in the current review, namely, a high surface reactivity, is the origin of the main drawback of PPFs (aging through oxidation) and will be addressed in more detail in the following sections. At the moment, it is sufficient to mention that the surface reactivity, when carefully handled through controlled functionalization, opens doors for the application of PPFs in many different domains, such as in the design of biosensors for medical diagnostics , and in the development of superhydrophobic surfaces. , To lay a foundation for understanding the structure and hence the properties of plasma polymers, we first briefly present the mechanisms of their formation in the plasma.…”

Section: Plasma Polymerization: a Particular Type Of Thin-film Plasma...mentioning

confidence: 99%

Free-Radical-Induced Grafting from Plasma Polymer Surfaces

et al. 2016

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With the advances in science and engineering in the second part of the 20th century, emerging plasma-based technologies continuously find increasing applications in the domain of polymer chemistry, among others. Plasma technologies are predominantly used in two different ways: for the treatment of polymer substrates by a reactive or inert gas aiming at a specific surface functionalization or for the synthesis of a plasma polymer with a unique set of properties from an organic or mixed organic-inorganic precursor. Plasma polymer films (PPFs), often deposited by plasma-enhanced chemical vapor deposition (PECVD), currently attract a great deal of attention. Such films are widely used in various fields for the coating of solid substrates, including membranes, semiconductors, metals, textiles, and polymers, because of a combination of interesting properties such as excellent adhesion, highly cross-linked structures, and the possibility of tuning properties by simply varying the precursor and/or the synthesis parameters. Among the many appealing features of plasma-synthesized and -treated polymers, a highly reactive surface, rich in free radicals arising from deposition/treatment specifics, offers a particular advantage. When handled carefully, these reactive free radicals open doors to the controllable surface functionalization of materials without affecting their bulk properties. The goal of this review is to illustrate the increasing application of plasma-based technologies for tuning the surface properties of polymers, principally through free-radical chemistry.

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“…Surface Topography: Addition of oxygen to the plasma of an organometallic vapor has been known to promote the smoothening of a surface. [40,24] . Figure 6 shows the typical 3D AFM images of the hydrogels.…”

Section: Influence Of Plasma Treatment On Surface Properties Of Hydro...mentioning

confidence: 99%

“…The TEOS-PECVD system, taken in conjugation with an oxidant gas such as oxygen or ozone, have effectively deposited higher quality silica films with less impurity and good conformality at low temperatures. [18,24,25] In many reports, SiO 2 have been directly deposited onto the substrate without the use of oxygen; since in TEOS, the silicon atom is already oxidized. [26] However, the addition of oxygen has a crucial role in surface reactions.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of TEOS Plasma Polymerized Carboxymethyl Starch/Alginate Hydrogels as Controlled Drug Delivery Systems

Dalei

Das

2021

Starch Stärke

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To design a controlled delivery device for the potent glucocorticoid dexamethasone; smart hydrogels composed of carboxymethyl starch, and sodium alginate are fabricated and exposed to tetraethyl orthosilicate (TEOS) cold plasma treatment using oxygen as an oxidant gas. Surface hydrophobization ensuing from plasma treatment is evidenced from FTIR and water contact angle analyses. It is also observed that the water uptake capacity of TEOS-plasma modified hydrogel is much lower than the pristine hydrogel. The release studies of dexamethasone illustrated a slower release from TEOS-plasma treated hydrogel in simulated intestinal fluid that conformed to the oral delivery of the drug to the colon. The preliminary kinetics of drug release demonstrated that TEOS-plasma influenced the polymer chain relaxation thereby leading to a slower rate of drug release. The cytocompatibility studies on MCF-7 cells clearly depicted that plasma treatment of the hydrogels does not evoke any detrimental effects on the cellular viability. Lastly, the in vitro degradation studies of the hydrogels in lysozyme solution demonstrated their good degradation behavior. Overall, the findings of this study implied that the TEOS-plasma modified hydrogel could be explored as potential biomaterial for the oral controlled delivery of dexamethasone.

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Effect of TEOS plasma polymerization on corn starch/poly(ε-caprolactone) film: characterization, properties and biodegradation

Abstract: An improvement in the barrier properties of biopolymer CSPCL films was achieved without affecting the biodegradability, using plasma polymerization techniques.

Cited by 19 publications

References 46 publications

Low‐cost and biodegradable cellulose/PVP/activated carbon composite membrane for brackish water treatment

Low‐cost and biodegradable cellulose/PVP/activated carbon composite membrane for brackish water treatment

Free-Radical-Induced Grafting from Plasma Polymer Surfaces

Evaluation of TEOS Plasma Polymerized Carboxymethyl Starch/Alginate Hydrogels as Controlled Drug Delivery Systems

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