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Shabeena M, Warale D, Prabhu A, Kouser S, Manasa DJ, Nagaraja GK. Pectin wrapped halloysite nanotube reinforced Polycaprolactone films for potential wound healing application. Int J Biol Macromol 2024; 262:130140. [PMID: 38365152 DOI: 10.1016/j.ijbiomac.2024.130140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 02/05/2024] [Accepted: 02/11/2024] [Indexed: 02/18/2024]
Abstract
The current research work focuses on preparing the polycaprolactone (PCL) based nanocomposite films embedded with surface modified Halloysite Nanotube (HNT). The avenue of the study is to unravel the applicability of polymer nanocomposites for wound healing. The flexible property of HNT was taken as the major force to accomplish the addition of biopolymer pectin onto its surface. Functionalization of HNT with pectin has certainly enhanced its binding nature with the polymer. The PCL nanocomposite films were characterized by several promising techniques such as FTIR, XRD, DSC-TGA, FESEM, TEM, AFM, and mechanical properties were too examined along. When compared to the plane PCL film, the nanocomposite films manifested favorable results in terms of mechanical and chemical properties. Additionally, biometric studies such as in-vitro swelling, enzymatic degradation, and hemolysis performed on the films gave extremely good results. The haemolytic percentage recorded for the films exhibited a steady decrease with increasing amount of nanofillers. The MTT assay showed cell proliferation and its increase as the embedded HNT is more in the matrix. Wound closure study performed on NIH3T3 cell line with 1, 3 and 5wt% of films has given a strong proof for the involvement of polymer and HNT in the healing procedure.
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Affiliation(s)
- M Shabeena
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Mangalagangothri, 574199 Dakshina Kannada, Karnataka, India
| | - Deepali Warale
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Mangalagangothri, 574199 Dakshina Kannada, Karnataka, India
| | - Ashwini Prabhu
- Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575018, Karnataka, India
| | - Sabia Kouser
- Department of P.G.Studies in chemistry, Karnataka Science College, Dharwad 577007, Karnataka, India
| | - D J Manasa
- Department of Botany, Davangere university, Davangere 577007, Karnataka, India
| | - G K Nagaraja
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Mangalagangothri, 574199 Dakshina Kannada, Karnataka, India.
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Biocompatible pectin-functionalised-halloysite loaded poly(vinyl alcohol) nanocomposite films for tissue engineering applications. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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3
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Zare Y, Rhee KY, Park SJ. Tensile Modulus of Polymer Halloysite Nanotube Systems Containing Filler–Interphase Networks for Biomedical Requests. MATERIALS 2022; 15:ma15134715. [PMID: 35806839 PMCID: PMC9268539 DOI: 10.3390/ma15134715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/02/2022] [Accepted: 07/04/2022] [Indexed: 11/16/2022]
Abstract
To date, there have been a limited number of studies modeling the tensile modulus in the polymer halloysite nanotube (HNT) systems before or after percolation onset. In this paper, an equation for a composite’s modulus post-percolation onset was developed for HNT-filled samples including the interphase and HNT network. The dispersed nanoparticles and adjoining interphase part were neglected, because they caused ineffective influences on the stiffness of the system after percolation onset. The developed model reflects the impacts of HNTs’ size, interphase depth, percolation onset and the volume shares and moduli of the HNT network and its adjacent interphase on the modulus of HNT-based systems. The impacts of issues on the nanocomposite modulus are defendable, confirming the effectiveness of the developed model. HNT length, interphase depth, HNT concentration, net modulus and net portion directly influenced the stiffness, while the HNT radius and percolation onset had inverse effects. Results show that there was a 142% improvement in the modulus of samples at an interphase depth of 40 nm. Moreover, the stiffness improved by 60% at a net modulus of 200 GPa, but it later exhibited a 180% enhancement at a net modulus of 1000 GPa. In addition, the experimental data for the modulus of numerous composites display fine agreement to the predictions, confirming the validity of the developed model.
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Affiliation(s)
- Yasser Zare
- Biomaterials and Tissue Engineering Research Group, Department of Interdisciplinary Technologies, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran 1125342432, Iran;
| | - Kyong Yop Rhee
- Department of Mechanical Engineering (BK21 Four), College of Engineering, Kyung Hee University, Yongin 449-701, Korea
- Correspondence: (K.Y.R.); (S.-J.P.)
| | - Soo-Jin Park
- Department of Chemistry, Inha University, Incheon 22212, Korea
- Correspondence: (K.Y.R.); (S.-J.P.)
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Tanpichai S, Boonmahitthisud A, Soykeabkaew N, Ongthip L. Review of the recent developments in all-cellulose nanocomposites: Properties and applications. Carbohydr Polym 2022; 286:119192. [DOI: 10.1016/j.carbpol.2022.119192] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 01/25/2022] [Accepted: 01/26/2022] [Indexed: 12/21/2022]
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Zare Y, Rhee KY. Development of a model for modulus of polymer halloysite nanotube nanocomposites by the interphase zones around dispersed and networked nanotubes. Sci Rep 2022; 12:2443. [PMID: 35165379 PMCID: PMC8844292 DOI: 10.1038/s41598-022-06465-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 01/25/2022] [Indexed: 01/23/2023] Open
Abstract
AbstractTheoretical studies on the mechanical properties of halloysite nanotube (HNT)-based nanocomposites have neglected the HNT network and interphase section, despite the fact that the network and interphase have significant stiffening efficiencies. In the present study, the advanced Takayanagi equation for determining the modulus of nanocomposites is further developed by considering the interphase zones around the dispersed and networked HNTs above percolation onset. Furthermore, simple equations are provided to determine the percolation onset of HNTs and the volume portions of HNTs and interphase section in the network. The experimental values obtained for many samples and the assessments of all relevant factors validate the proposed model. The high ranges of HNT concentration, interphase depth, HNT modulus, HNT length, network modulus, interphase modulus, interphase concentration, and network fraction enhance the system modulus. However, the low levels of HNT radius, percolation onset, and matrix modulus can intensify the reinforcing effect. Notably, the moduli of the dispersed HNTs and the surrounding interphase negligibly affect the modulus of the samples. Moreover, HNTs cannot reinforce the polymer medium when the HNT volume fraction is lower than 0.01 and the interphase depth is less than 5 nm.
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Zare Y, Rhee KY, Park SJ. An applicable model for the modulus of polymer halloysite nanotubes samples by the characteristics of halloysite nanotubes, interphase zone and filler/interphase network. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Saedi S, Shokri M, Kim JT, Shin GH. Semi-transparent regenerated cellulose/ZnONP nanocomposite film as a potential antimicrobial food packaging material. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2021.110665] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Husseinsyah S, Zailuddin NLI, Osman AF, Li Li C, Alrashdi AA, Alakrach A. Methyl Methacrylate (MMA) Treatment of Empty Fruit Bunch (EFB) to Improve the Properties of Regenerated Cellulose Biocomposite Films. Polymers (Basel) 2020; 12:polym12112618. [PMID: 33172054 PMCID: PMC7694693 DOI: 10.3390/polym12112618] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/04/2020] [Accepted: 11/04/2020] [Indexed: 11/30/2022] Open
Abstract
The empty fruit bunch (EFB) regenerated cellulose (RC) biocomposite films for packaging application were prepared using ionic liquid. The effects of EFB content and methyl methacrylate (MMA) treatment of the EFB on the mechanical and thermal properties of the RC biocomposite were studied. The tensile strength and modulus of elasticity of the MMA treated RC biocomposite film achieved a maximum value when 2 wt% EFB was used for the regeneration process. The treated EFB RC biocomposite films also possess higher crystallinity index. The morphology analysis indicated that the RC biocomposite film containing MMA treated EFB exhibits a smoother and more homogeneous surface compared to the one containing the untreated EFB. The substitution of the –OH group of the EFB cellulose with the ester group of the MMA resulted in greater dissolution of the EFB in the ionic liquid solvent, thus improving the interphase bonding between the filler and matrix phase of the EF RC biocomposite. Due to this factor, thermal stability of the EFB RC biocomposite also successfully improved.
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Affiliation(s)
- Salmah Husseinsyah
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia; (S.H.); (N.L.I.Z.); (C.L.L.)
| | - Nur Liyana Izyan Zailuddin
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia; (S.H.); (N.L.I.Z.); (C.L.L.)
| | - Azlin Fazlina Osman
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia; (S.H.); (N.L.I.Z.); (C.L.L.)
- Biomedical and Nanotechnology Research Group, Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia
- Correspondence:
| | - Chew Li Li
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia; (S.H.); (N.L.I.Z.); (C.L.L.)
| | - Awad A. Alrashdi
- Chemistry Department, Umm Al-Qura University, Al-qunfudah University College, Al-qunfudah Center for Scientific Research (QCSR), Al Qunfudah 21962, Saudi Arabia;
| | - Abdulkader Alakrach
- Chemistry Department, Faculty of Pharmacy, Qasyoun Private University, Damascus 20872, Syria;
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Sharifzadeh G, Soheilmoghaddam M, Adelnia H, Wahit MU, Arzhandi MRD, Moslehyani A. Biocompatible regenerated cellulose/halloysite nanocomposite fibers. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25370] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ghorbanali Sharifzadeh
- Department of Polymer Engineering, School of Chemical EngineeringUniversiti Teknologi Malaysia (UTM) Skudai Malaysia
| | - Mohammad Soheilmoghaddam
- Tissue Engineering and Microfluidic Laboratory, Australian Institute for Bioengineering and NanotechnologyThe University of Queensland Brisbane Queensland Australia
| | - Hossein Adelnia
- Australian Institute for Bioengineering and NanotechnologyThe University of Queensland Brisbane Queensland Australia
| | - Mat Uzir Wahit
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), UTM Skudai, Johor Bahru Johor Malaysia
- Center For Advanced Composite Materials (CACM), Universiti Teknologi Malaysia (UTM), UTM Skudai Johor Bahru Johor Malaysia
| | - Masood Rezaei Dasht Arzhandi
- UNESCO chair on Water Reuse, School of Chemical Engineering, College of EngineeringUniversity of Tehran Tehran Iran
| | - Ali Moslehyani
- Department of Chemical and Biological EngineeringUniversity of Ottawa Ottawa Ontario Canada
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Nguyen KD, Trang TTC, Kobayashi T. Chitin-halloysite nanoclay hydrogel composite adsorbent to aqueous heavy metal ions. J Appl Polym Sci 2018. [DOI: 10.1002/app.47207] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Khoa Dang Nguyen
- Department of Science of Technology Innovation; Nagaoka University of Technology; Nagaoka, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188 Japan
| | - Truong Thi Cam Trang
- Faculty of Environmental Science; Ho Chi Minh University of Science, Vietnam National University; 227 Nguyen Van Cu, Ward 4, District 5, Ho Chi Minh, 70000 Vietnam
| | - Takaomi Kobayashi
- Department of Science of Technology Innovation; Nagaoka University of Technology; Nagaoka, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188 Japan
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Kim M, Jee SC, Sung JS, Kadam AA. Anti-proliferative applications of laccase immobilized on super-magnetic chitosan-functionalized halloysite nanotubes. Int J Biol Macromol 2018; 118:228-237. [PMID: 29913193 DOI: 10.1016/j.ijbiomac.2018.06.074] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 06/11/2018] [Accepted: 06/13/2018] [Indexed: 12/11/2022]
Abstract
Owing to the ubiquitous availability and simple biocatalysis, the anti-proliferative laccase holds enormous opportunities for anti-cancer applications. However, accessing efficient and specific (super-magnetically targetable) new delivery system for anti-proliferative laccase is vital step towards laccase based anti-cancer approach. Therefore, in this investigation, super-magnetized (Fe3O4) and chitosan (CS) functionalized halloysite nanotubes (HNTs) (termed as Fe3O4-HNTs-CS) was facile synthesized. Further, laccase from Trametes versicolor was immobilized on Fe3O4-HNTs-CS (termed as Fe3O4-HNTs-CS-Lac). Then free laccase and Fe3O4-HNTs-CS-Lac were evaluated for anti-proliferative properties against cancer cell lines of liver (HepG2), lung (H460), cervix (Hela) and stomach (AGS). Laccase and Fe3O4-HNTs-CS-Lac gave significant cytotoxicity against all studied cancer cell lines. Moreover, the apoptosis analysis and FE-SEM morphology observations of cells support the anti-proliferative potential of laccase immobilized on Fe3O4-HNTs-CS. Therefore, investigated Fe3O4-HNTs-CS-Lac is natural and super-magnetic nano-biocatalyst, having the significant anti-proliferative potential and furthermore, Fe3O4-HNTs-CS can be used as efficient and specific delivery system for other anti-cancer enzymes.
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Affiliation(s)
- Min Kim
- Department of Life Sciences, Dongguk University-Seoul, Biomedi Campus, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea
| | - Seung Cheol Jee
- Department of Life Sciences, Dongguk University-Seoul, Biomedi Campus, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea
| | - Jung-Suk Sung
- Department of Life Sciences, Dongguk University-Seoul, Biomedi Campus, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea
| | - Avinash A Kadam
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Biomedi Campus, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea.
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Properties and characterization of carboxymethyl cellulose/halloysite nanotube bio-nanocomposite films: Effect of sodium dodecyl sulfate. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2392-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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13
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Nevstrueva D, Murashko K, Vunder V, Aabloo A, Pihlajamäki A, Mänttäri M, Pyrhönen J, Koiranen T, Torop J. Natural cellulose ionogels for soft artificial muscles. Colloids Surf B Biointerfaces 2017; 161:244-251. [PMID: 29080509 DOI: 10.1016/j.colsurfb.2017.10.053] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 08/24/2017] [Accepted: 10/17/2017] [Indexed: 11/18/2022]
Abstract
Rapid development of soft micromanipulation techniques for human friendly electronics has raised the demand for the devices to be able to carry out mechanical work on a micro- and macroscale. The natural cellulose-based ionogels (CEL-iGEL) hold a great potential for soft artificial muscle application, due to its flexibility, low driving voltage and biocompatibility. The CEL-iGEL composites undergo reversible bending already at ±500mV step-voltage values. A fast response to the voltage applied and high ionic conductivity of membranous actuator is achieved by a complete dissolution of cellulose in 1-ethyl-3-methylimidazolium acetate [EMIm][OAc]. The CEL-iGEL supported cellulose actuator films were cast out of cellulose-[EMIm][OAc] solution via phase inversion in H2O. The facile preparation method ensured uniform morphology along the layers and stand for the high ionic-liquid loading in a porous cellulose scaffold. During the electromechanical characterization, the CEL-iGEL actuators showed exponential dependence to the voltage applied with the max strain difference values reaching up to 0.6% at 2 V. Electrochemical analysis confirmed the good stability of CEL-iGEL actuators and determined the safe working voltage value to be below 2.5V. To predict and estimate the deformation for various step input voltages, a mathematical model was proposed.
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Affiliation(s)
- Daria Nevstrueva
- Lappeenranta University of Technology, LUT School of Engineering Science, Skinnarilankatu 34, 53850 Lappeenranta, Finland.
| | - Kirill Murashko
- Lappeenranta University of Technology, LUT School of Engineering Science, Skinnarilankatu 34, 53850 Lappeenranta, Finland
| | - Veiko Vunder
- University of Tartu, Institute of Technology, IMS Lab, Nooruse 1, 50411 Tartu, Estonia
| | - Alvo Aabloo
- University of Tartu, Institute of Technology, IMS Lab, Nooruse 1, 50411 Tartu, Estonia
| | - Arto Pihlajamäki
- Lappeenranta University of Technology, LUT School of Engineering Science, Skinnarilankatu 34, 53850 Lappeenranta, Finland
| | - Mika Mänttäri
- Lappeenranta University of Technology, LUT School of Engineering Science, Skinnarilankatu 34, 53850 Lappeenranta, Finland
| | - Juha Pyrhönen
- Lappeenranta University of Technology, LUT School of Engineering Science, Skinnarilankatu 34, 53850 Lappeenranta, Finland
| | - Tuomas Koiranen
- Lappeenranta University of Technology, LUT School of Engineering Science, Skinnarilankatu 34, 53850 Lappeenranta, Finland
| | - Janno Torop
- Lappeenranta University of Technology, LUT School of Engineering Science, Skinnarilankatu 34, 53850 Lappeenranta, Finland; University of Tartu, Institute of Technology, IMS Lab, Nooruse 1, 50411 Tartu, Estonia
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Ionic liquid tailored interfaces in halloysite nanotube/heterophasic ethylene–propylene copolymer nanocomposites with enhanced mechanical properties. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.07.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Feng Y, Zhang J, He J, Zhang J. Transparent cellulose/polyhedral oligomeric silsesquioxane nanocomposites with enhanced UV-shielding properties. Carbohydr Polym 2016; 147:171-177. [DOI: 10.1016/j.carbpol.2016.04.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 03/31/2016] [Accepted: 04/01/2016] [Indexed: 12/31/2022]
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Noein L, Haddadi-Asl V, Salami-Kalajahi M. Grafting of pH-sensitive poly (N,N-dimethylaminoethyl methacrylate-co-2-hydroxyethyl methacrylate) onto HNTS via surface-initiated atom transfer radical polymerization for controllable drug release. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2016.1190927] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Arjmandi R, Hassan A, Haafiz M, Zakaria Z, Islam MS. Effect of hydrolysed cellulose nanowhiskers on properties of montmorillonite/polylactic acid nanocomposites. Int J Biol Macromol 2016; 82:998-1010. [DOI: 10.1016/j.ijbiomac.2015.11.028] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 10/19/2015] [Accepted: 11/12/2015] [Indexed: 11/27/2022]
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Molaei A, Amadeh A, Yari M, Reza Afshar M. Structure, apatite inducing ability, and corrosion behavior of chitosan/halloysite nanotube coatings prepared by electrophoretic deposition on titanium substrate. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 59:740-747. [PMID: 26652428 DOI: 10.1016/j.msec.2015.10.073] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 09/30/2015] [Accepted: 10/23/2015] [Indexed: 12/17/2022]
Abstract
In this study chitosan/halloysite nanotube composite (CS/HNT) coatings were deposited by electrophoretic deposition (EPD) on titanium substrate. Using HNT particles were investigated as new substituents for carbon nanotubes (CNTs) in chitosan matrix coatings. The ability of chitosan as a stabilizing, charging, and blending agent for HNT particles was exploited. Furthermore, the effects of pH, electrophoretic bath, and sonicating duration were studied on the deposition of suspensions containing HNT particles. Microstructure properties of coatings showed uniform distribution of HNT particles in chitosan matrix to form smooth nanocomposite coatings. The zeta potential results revealed that at pH around 3 there is an isoelectric point for HNT and it would have cathodic and anionic states at pH values less and more than 3, respectively. Therefore, CS/HNT composite deposits were produced in the pH range of 2.5 to 3. The apatite inducing ability of chitosan-HNT composite coating assigned that HNT particles were biocompatible because they formed carbonated hydroxyapatite particles on CS/HNT coating in corrected simulated body fluid (C-SBF). Finally, electrochemical corrosion characterizations determined that corrosion resistance in CS/HNT coating has been improved compared to bare titanium substrate.
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Affiliation(s)
- A Molaei
- Department of Materials Engineering, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - A Amadeh
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - M Yari
- Department of Materials Engineering, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - M Reza Afshar
- Department of Materials Engineering, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran
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Effect of HNTs modification in nanocomposite membrane enhancement for bacterial removal by cross-flow ultrafiltration system. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2015.08.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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20
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Abstract
The incorporation of unmodified halloysite nanotube (HNT) in a thermoplastic sago starch (TPSS) film to form a nanocomposite material was investigated. The TPSS/HNT nanocomposite was fabricated through solvent casting method at varying HNT loading of 0, 0.25, 0.5, 1.0, 3.0, and 5.0 wt.%. Evaluation on mechanical and physical properties (tensile test, water absorption, thickness and density) was made to study the effect of HNT loading on the TPSS properties. Tensile strength achieved an optimum value at 0.25 wt.% of HNT loading and decreased with higher addition of HNT. Meanwhile higher amount of HNT in the nanocomposite film exhibited brittleness with the reduced tensile strain. Water absorption decreased with the addition of HNT due to the difficulty of water molecules to pass through the tortuous path of HNT structure. Thickness and density of the nanocomposite film, however, increased at higher HNT contents. FESEM (field emission scanning electron microscope) which examined the surface morphology of the TPSS/HNT nanocomposite displayed uniformly dispersed HNT in the plasticized starch matrix.
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Moazeni N, Mohamad Z, Dehbari N. Study of silane treatment on poly-lactic acid(PLA)/sepiolite nanocomposite thin films. J Appl Polym Sci 2014. [DOI: 10.1002/app.41428] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Nima Moazeni
- Department of Polymer Engineering, Faculty of Chemical Engineering; Universiti Teknologi Malaysia (UTM); Skudai Johor Malaysia
| | - Zurina Mohamad
- Department of Polymer Engineering, Faculty of Chemical Engineering; Universiti Teknologi Malaysia (UTM); Skudai Johor Malaysia
| | - Nazila Dehbari
- Centre for NanoScale Science and Technology, School of Computer Science, Engineering and Mathematics; Flinders University; South Australia 5043 Australia
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22
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Regenerated cellulose nanocomposites reinforced with exfoliated graphite nanosheets using BMIMCL ionic liquid. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.05.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Soheilmoghaddam M, Wahit MU, Tuck Whye W, Ibrahim Akos N, Heidar Pour R, Ali Yussuf A. Bionanocomposites of regenerated cellulose/zeolite prepared using environmentally benign ionic liquid solvent. Carbohydr Polym 2014; 106:326-34. [DOI: 10.1016/j.carbpol.2014.02.085] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 02/27/2014] [Accepted: 02/27/2014] [Indexed: 10/25/2022]
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Uysal Unalan I, Cerri G, Marcuzzo E, Cozzolino CA, Farris S. Nanocomposite films and coatings using inorganic nanobuilding blocks (NBB): current applications and future opportunities in the food packaging sector. RSC Adv 2014. [DOI: 10.1039/c4ra01778a] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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