Browsing by Author "Thomas, S."
Now showing items 1-20 of 20
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Anticoagulant activity of cellulose nanocrystals from isora plant fibers assembled on cellulose and sio2 substrates via a layer-by-layer approach
Mohan T.; Chirayil C.J.; Nagaraj C.; Bracic M.; Steindorfer T.A.; Krupa I.; Al Maadeed M.A.A.; Kargl R.; Thomas S.; Kleinschek K.S.... more authors ... less authors ( MDPI AG , 2021 , Article)In this study, we report the isolation of cellulose nanocrystals (CNCs) from Isora plant fibers by sulfuric acid hydrolysis and their assembly on hydrophilic cellulose and silicon-di-oxide (SiO2) surfaces via a layer-by-layer ... -
Carboxymethylcellulose hybrid nanodispersions for edible coatings with potential anti-cancer properties
Joshy K.S.; Augustine R.; Li T.; Snigdha S.; Hasan, Anwarul; Komalan C.; Kalarikkal N.; Thomas S.... more authors ... less authors ( Elsevier B.V. , 2020 , Article)Curcumin loaded lipid-polymer hybrid nanoparticles dispersions were fabricated from carboxymethylcellulose, stearic acid, polyethylene glycol and sesame oil using emulsion solvent evaporation method for their possible ... -
Chemical modification of graphene with grape seed extract: Its structural, optical and antimicrobial properties
Yaragalla S.; Rajendran R.; AlMaadeed M.A.; Kalarikkal N.; Thomas S. ( Elsevier Ltd , 2019 , Article)Herein, we modified for the first time thermally reduced graphene oxide (TRG) using grape seed extract (GSE), by simple probe sonication method. The effect of GSE on the structural changes of TRG has been carefully analyzed ... -
Correlating the rheological and magneto-optical properties of cobalt substituted magnetite ferrofluids (CoxFe1?xFe2O4) with theoretical studies
Babukutty, B.; Ponnamma, D.; Nair, S.S.; Thomas, S. ( Elsevier B.V. , 2023 , Article)Magnetite ferrofluids are widely reported due to their outstanding physicochemical, magnetic and antibacterial properties. This study focusses on the synthesis of magnetite ferrofluids and the effect of Co2+ substitution ... -
Developing Polyaniline Filled Isoprene Composite Fibers by Electrospinning: Effect of Filler Concentration on the Morphology and Glass Transition
Deepalekshmi Ponnamma; Sadasivuni K.K.; Al-Maadeed M.A.A.; Thomas S. ( Pleiades Publishing , 2019 , Article)Abstract: Sub micron and nano level fibers are produced from the polymer melts by applying an external electric field during electrospinning; however very few studies are reported on elastomer scaffolds formed by this ... -
Development of titanium dioxide nanowire incorporated poly(vinylidene fluoride–trifluoroethylene) scaffolds for bone tissue engineering applications
Augustine A.; Augustine R.; Hasan A.; Raghuveeran V.; Rouxel D.; Kalarikkal N.; Thomas S.... more authors ... less authors ( Springer New York LLC , 2019 , Article)Critical size bone defects that do not heal spontaneously are among the major reasons for the disability in majority of people with locomotor disabilities. Tissue engineering has become a promising approach for repairing ... -
Eco-friendly foam biocomposites based on cellulose extracted from date palm leaves and low-density polyethylene
Maria H.J.; Luyt A.S.; Popelka A.; Nzihou A.; Egorov V.V.; Krupa I.; Al-Ali Al-Maadeed M.A.S.; Thomas S.... more authors ... less authors ( Web Portal IOP , 2020 , Article)The design of composite materials using environmentally compatible materials and adopting sustainable preparation techniques is very necessary for a better environment. The present study is a step towards developing an ... -
Enhanced morphology and mechanical characteristics of clay/styrene butadiene rubber nanocomposites
Usha Devi K.S.; Ponnamma D.; Causin V.; Maria H.J.; Thomas S. ( Elsevier Ltd , 2015 , Article)Achieving complete exfoliation of clay in their polymer nanocomposite is a matter of interest as it can significantly affect the material properties. Herein, an efficient way of enhancing the interlayer spaces of organically ... -
Free-volume correlation with mechanical and dielectric properties of natural rubber/multi walled carbon nanotubes composites
Ponnamma D.; Ramachandran R.; Hussain S.; Rajaraman R.; Amarendra G.; Varughese K.T.; Thomas S.... more authors ... less authors ( Elsevier Ltd , 2015 , Article)Abstract The microstructure, mechanical strength, dielectric properties, Doppler broadening measurements and positron life time studies of the composites containing multi walled carbon nanotubes (MWCNTs) and natural rubber ... -
Graphene and graphitic derivative filled polymer composites as potential sensors
Ponnamma D.; Guo Q.; Krupa I.; Al-Maadeed M.A.S.A.; Varughese K.T.; Thomas S.; Sadasivuni K.K.... more authors ... less authors ( Royal Society of Chemistry , 2015 , Article)Graphite and numerous graphitic-derived micro- and nano-particles have gained importance in current materials science research. These two-dimensional sheets of sp2-hybridized carbon atoms remarkably influence the properties ... -
Growth factor loaded in situ photocrosslinkable poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/gelatin methacryloyl hybrid patch for diabetic wound healing
Augustine R.; Hasan, Anwarul; Dalvi Y.B.; Rehman S.R.U.; Varghese R.; Unni R.N.; Yalcin H.C.; Alfkey R.; Thomas S.; Al Moustafa A.-E.... more authors ... less authors ( Elsevier Ltd , 2021 , Article)Management of chronic diabetic ulcers remains as a major challenge in healthcare which requires extensive multidisciplinary approaches to ensure wound protection, management of excess wound exudates and promoting healing. ... -
Natural halloysite nanotubes /chitosan based bio-nanocomposite for delivering norfloxacin, an anti-microbial agent in sustained release manner
Barman M.; Mahmood S.; Augustine R.; Hasan, Anwarul; Thomas S.; Ghosal K.... more authors ... less authors ( Elsevier B.V. , 2020 , Article)Applying nanotechnology to deliver drug could result in several benefits such as prolong duration of action, enhancement in overall bioavailability, targeting to specific site, low initial loading dose require, systemic ... -
NiFe2O4/poly(ethylene glycol)/lipid-polymer hybrid nanoparticles for anti-cancer drug delivery
Joshy K.S.; Augustine R.; Mayeen A.; Alex S.M.; Hasan, Anwarul; Thomas S.; Chi H.... more authors ... less authors ( Royal Society of Chemistry , 2020 , Article)The present study reports the fabrication of hybrid nanoparticles consisting of nickel ferrite (NFO) for anti cancer drug delivery. The hybrid system was formulated from poly(vinyl alcohol)/stearic acid with PEG containing ... -
Novel drug delivery systems based on triaxial electrospinning based nanofibers
Ghosal K.; Augustine R.; Zaszczynska A.; Barman M.; Jain A.; Hasan, Anwarul; Kalarikkal N.; Sajkiewicz P.; Thomas S.... more authors ... less authors ( Elsevier B.V. , 2021 , Article)Electrospinning is a widely investigated process for forming nanofibers. Nanofibers in drug delivery systems are extensively tested due to its remarkable properties e.g. small pore size or large surface area. Recent articles ... -
Recent advances in electrospun polycaprolactone based scaffolds for wound healing and skin bioengineering applications
Joseph B.; Augustine R.; Kalarikkal N.; Thomas S.; Seantier B.; Grohens Y.... more authors ... less authors ( Elsevier Ltd , 2019 , Article)Electrospun poly(-caprolactone) (PCL) scaffolds incorporated with bioactive materials play a key role in tissue engineering applications due to their extra cellular matrix (ECM) mimicking property, biocompatibility and ... -
Recent progress and multifunctional applications of 3D printed graphene nanocomposites
Ponnamma D.; Yin Y.; Salim N.; Parameswaranpillai J.; Thomas S.; Hameed N.... more authors ... less authors ( Elsevier Ltd , 2021 , Article Review)This review provides a comprehensive analysis of available peer-reviewed literature in which graphene and/or its derivatives are incorporated into a polymer matrix in order to enhance the final properties and functionalities ... -
Review on exploration of graphene in the design and engineering of smart sensors, actuators and soft robotics
Jin X.; Feng C.; Ponnamma D.; Yi Z.; Parameswaranpillai J.; Thomas S.; Salim N.V.... more authors ... less authors ( Elsevier B.V. , 2020 , Article Review)This article presents a comprehensive review on the recent development of graphene and its derivatives in the design and engineering of smart sensors, actuators and soft robotics. Comparing with traditional materials used ... -
Solvent Uptake of Liquid Rubber Toughened Epoxy/Clay Nanocomposites
Vijayan, P. P.; Harikrishnan, M. G.; Puglia, D.; Vijayan, P. P.; Kenny, J. M.; Thomas, S.... more authors ... less authors ( John Wiley and Sons Inc. , 2016 , Article)Carboxyl-terminated poly (butadiene-co-acrylonitrile) (CTBN) liquid rubber toughened epoxy (epoxy/CTBN blend) and CTBN-toughened epoxy/clay nanocomposites (epoxy/clay/CTBN nanocomposites) were prepared, and solvent (acetone) ... -
Structural influence of chromium substituted magnetite ferrofluids on the optical and antibacterial characteristics
Babukutty, B.; Ponnamma, D.; Nair, S.S.; Jose, J.; Bhat, S.G.; Thomas, S.... more authors ... less authors ( Elsevier Ltd , 2023 , Article)A series of chromium substituted magnetite (CrxFe1?xFe2O4) ferrofluids with various concentrations ranging from x = 0-0.8 is reported in this work. Simple, cost effective and gentle co-precipitation method is followed for ... -
Yttrium oxide nanoparticle loaded scaffolds with enhanced cell adhesion and vascularization for tissue engineering applications
Augustine R.; Dalvi Y.B.; Yadu Nath V.K.; Varghese R.; Raghuveeran V.; Hasan A.; Thomas S.; Sandhyarani N.... more authors ... less authors ( Elsevier Ltd , 2019 , Article)In situ tissue engineering is emerging as a novel approach in tissue engineering to repair damaged tissues by boosting the natural ability of the body to heal itself. This can be achieved by providing suitable signals and ...