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Ghosh R, Gupta S, Mehrotra S, Kumar A. Surface-Modified Diopside-Reinforced PCL Biopolymer Composites with Enhanced Interfacial Strength and Mechanical Properties for Orthopedic Applications. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7670-7685. [PMID: 38310585 DOI: 10.1021/acsami.3c15637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
The phase separation of ceramics in a biopolymer matrix makes it challenging to achieve satisfactory mechanical properties required for orthopedic applications. It has been found that silane coupling agents can modify the surface of the bioceramic phase by forming a molecular bridge between the polymer and the ceramic, resulting in improved interfacial strength and adhesion. Therefore, in the present study, silane-modified diopside (DI) ceramic and ε-polycaprolactone (PCL) biopolymer composites were fabricated by injection molding method. The silane modification of DI resulted in their uniform dispersion in the PCL matrix, whereas agglomeration was found in composites containing unmodified DI. The thermal stability of the silane-modified DI-containing composites also increased. The Young's modulus of the composite containing 50% w/w DI modified by 3% w/w silane increased by 103% compared to composites containing 50% w/w unmodified DI. The biodegradation of the unmodified composites was significantly high, indicating their weak interfacial strength with the PCL matrix (p ≤ 0.001). The osteoconductive behavior of the composites was also validated by in vitro cell-material studies. Overall, our findings supported that the silane-modified composites have improved surface roughness, mechanical, and osteoconductive properties compared to the unmodified composite and have the potential for orthopedic applications.
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Affiliation(s)
- Rupita Ghosh
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Sneha Gupta
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Shreya Mehrotra
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Ashok Kumar
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- Centre for Nanosciences, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- Centre of Excellence for Orthopedics and Prosthetics, Gangwal School of Medical Sciences and Technology, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
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Tuning Polymer/TiO2 Nanocomposites Morphology by In Situ Non-Hydrolytic Sol-Gel Syntheses in Viscous Polymer Medium: Influence of the Polymer Nature and Oxygen Donor. Polymers (Basel) 2022; 14:polym14112273. [PMID: 35683944 PMCID: PMC9183041 DOI: 10.3390/polym14112273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 12/10/2022] Open
Abstract
Herein, we reported the synthesis of TiO2 through different non-hydrolytic sol-gel (NHSG) routes in viscous polymer media. For the first time, the influence of the polymer nature (Polystyrene (PS) or Polypropylene (PP)) on the morphology of synthesized inorganic domains was investigated. The non-hydrolytic sol-gel reactions between titanium isopropoxide Ti(OiPr)4 and acetic anhydride in molten polypropylene lead to the formation of microfillers with a mean diameter of about 1 μm, while the same synthesis carried out in viscous polystyrene lead to the formation of nanofillers with diameter lower than 10 nm forming aggregates of approximately 200 nm. We have also investigated the influence of the oxygen donor nature on the morphology of synthesized fillers using aromatic oxygen donors in a polystyrene matrix. The use of benzoic anhydride or acetophenone as oxygen donors with Ti(OiPr)4 in viscous polystyrene lead to respectively platelet-like morphology or aggregated nanofillers. We demonstrated that the affinity between polymer, reactants, and/or by-products had an influence on the morphology and the size of in situ synthesized TiO2 fillers. These results evidenced for the first time the possibility to control and to tune the morphology of in situ grown inorganic objects through the NHSG process by the appropriate choice of solvent, here a viscous polymer medium, and reactants.
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Owda ME, Elfeky AS, Abouzeid RE, Saleh AK, Awad MA, Abdellatif HA, Ahmed FM, Elzaref AS. Enhancement of photocatalytic and biological activities of chitosan/activated carbon incorporated with TiO 2 nanoparticles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:18189-18201. [PMID: 34687415 DOI: 10.1007/s11356-021-17019-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 10/09/2021] [Indexed: 06/13/2023]
Abstract
Novel and sustainable chitosan (CS)/activated charcoal (AC) composites were prepared by cross-linking with epichlorohydrin (ECH) to form a porous structure. Different titanium dioxide nanoparticle (TiO2 NPs) concentrations (0, 0.2, 0.4, and 0.8% w/w) were added to enhance the photocatalytic, antibacterial, larvicidal, and pupicidal activities' efficiency toward Rose Bengal (RB) dye and the Culex pipiens. The composites were characterized by FT-IR, XRD, XPS, BET and SEM. The SEM images revealed the porous structure of CS/AC and TiO2 nanoparticles were uniformly distributed in the CS/AC matrix. The degradation of RB dye was used to test the photocatalytic behavior of the composites. Supporting TiO2 on a CS/AC matrix resulted in a significant increase in photocatalytic performance. The antibacterial activities supported by CS/AC/TiO2 NPs were evaluated by bacterial growth inhibition against B. subtilis, S. aureus, E. coli, and P. aeruginosa. The results showed that CS/AC/TiO2 NPs composite has an inhibitory effect and therefore considered antibacterial agents. CS/AC/0.4%TiO2 NPs showed maximum efficacy against larvicidal activity and pupicidal of mosquito vector which recorded 99.00 ± 1.14, 95.00 ± 1.43, and 92.20 ± 2.64 for the first, second, and third larval instars and 66.00 ± 2.39 for pupal mortality, while the repellent activity reported high protection at 82.95 ± 2.99 with 3.24 mg/cm2 dose compared to control DEET.
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Affiliation(s)
- Medhat E Owda
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Ahmed S Elfeky
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Ragab E Abouzeid
- Cellulose and Paper Department, National Research Centre, 33 Bohouth st., Dokki, Giza, 12622, Egypt.
| | - Ahmed K Saleh
- Cellulose and Paper Department, National Research Centre, 33 Bohouth st., Dokki, Giza, 12622, Egypt
| | - Mohamed A Awad
- Zoology and Entomology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
| | - Haitham A Abdellatif
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Fakher M Ahmed
- Chemistry Department, Faculty of Pharmacy, October 6 University, Giza, Egypt
| | - Ahmed S Elzaref
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
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4
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Bicak B, Kecel-Gunduz S, Budama-Kilinc Y, Ozdemir B. Molecular docking studies of YKT tripeptide and drug delivery system with poly(ε-caprolactone) nanoparticles. Arch Pharm (Weinheim) 2022; 355:e2100437. [PMID: 35150004 DOI: 10.1002/ardp.202100437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 01/18/2022] [Accepted: 01/20/2022] [Indexed: 11/08/2022]
Abstract
Tyrosyllysylthreonine (YKT) is a peptide structure that contains three different amino acids in its structure and has anticancer properties. The main purpose of this study is to reveal the structural interactions of the peptide and to increase the efficiency of the peptide with nanoformulation. For these purposes, YKT-loaded poly(ε-caprolactone) (PCL) nanoparticles (NPs) were synthesized using the double-emission precipitation method and the obtained NPs were characterized with a Zeta Sizer, UV-Vis, Fourier transform infrared-attenuated total reflection spectrometers, scanning electron microscopy, and transmission electron microscopy. The in vitro release profile of the peptide-loaded PCL NPs was determined. In molecular modeling studies, PCL, PCL-polyvinyl alcohol (PVA), and PCL-PVA-YKT systems were simulated in an aqueous medium by molecular dynamics simulations, separately. The information about the interactions between the YKT tripeptide and the epidermal growth factor and androgen, estrogen, and progesterone receptors were obtained with the molecular docking study. Additionally, the ADME profile of YKT was determined as a result of each docking study. In conclusion, tripeptide-based nanodrug development studies of the YKT tripeptide are presented in this study.
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Affiliation(s)
- Bilge Bicak
- Department of Physics, Faculty of Science, Istanbul University, Istanbul, Turkey
| | - Serda Kecel-Gunduz
- Department of Physics, Faculty of Science, Istanbul University, Istanbul, Turkey
| | - Yasemin Budama-Kilinc
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey
| | - Burak Ozdemir
- Department of Bioengineering, Graduate School of Natural and Applied Science, Yildiz Technical University, İstanbul, Turkey
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5
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Effect of Poly(Titanium Oxide) on the Viscoelastic and Thermophysical Properties of Interpenetrating Polymer Networks. CRYSTALS 2021. [DOI: 10.3390/cryst11070794] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The influence of poly(titanium oxide) obtained using the sol-gel method in 2-hydroxyethyl methacrylate medium on the viscoelastic and thermophysical properties of interpenetrating polymer networks (IPNs) based on cross-linked polyurethane (PU) and poly(hydroxyethyl methacrylate) (PHEMA) was studied. It was found that both the initial (IPNs) and organo-inorganic interpenetrating polymer networks (OI IPNs) have a two-phase structure by using methods of dynamic mechanical analysis (DMA) and differential scanning calorimetry (DSC). The differential scanning calorimetry methods and scanning electron microscopy (SEM) showed that the presence of poly(titanium oxide) increases the compatibility of the components of IPNs. It was found that an increase in poly(titanium oxide) content leads to a decrease in the intensity of the relaxation maximum for PHEMA phase and an increase in the effective crosslinking density due to the partial grafting of the inorganic component to acrylate. It was shown that the topology of poly(titanium oxide) structure has a significant effect on the relaxation behavior of OI IPNs samples. According to SEM, a uniform distribution of the inorganic component in the polymer matrix is observed without significant aggregation.
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Alekseeva T, Kozak N, Yarova N. GUANIDINCONTAINING OLIGOMERIC CATIONIC POTONIC IONIC LIQUIDS WITH BIOCIDE ACTIVITY. Polym J 2020. [DOI: 10.15407/polymerj.42.03.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Aguilar-Pérez FJ, Vargas-Coronado RF, Cervantes-Uc JM, Cauich-Rodríguez JV, Rosales-Ibañez R, Rodríguez-Ortiz JA, Torres-Hernández Y. Titanium - castor oil based polyurethane composite foams for bone tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:1415-1432. [PMID: 31233380 DOI: 10.1080/09205063.2019.1636352] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Polyurethanes (PU) foams with titanium particles (Ti) were prepared with castor oil (CO) and isophorone diisocyanate (IPDI) as polymeric matrix, and 1, 3 and 5 wt.% of Ti. Composites were physicochemically and mechanically characterized and their biocompatibility assessed using human dental pulp stem cells (HDPSC). PU synthesis was confirmed by FTIR, but the presence of Ti was detected by RAMAN, X-ray diffraction (peak at 2θ = 40.2°) and by EDX-mapping. Materials showed three decomposition temperatures between 300 °C and 500 °C and their decomposition were not catalyzed by Ti particles. Compressive modulus (164-846 kPa), compressive strength (12.9-116.7 kPa) and density (128-240 kg/m3) tend to increase with Ti concentration but porosity was reduced (87% to 80%). Composites' foams were fully degraded in acid and oxidative media while remained stable in distilled water. HDPSC viability on all composites was higher than 80% up to 14 days while proliferation dropped up to 60% at 21 days. Overall, these results suggest that these foams can be used as scaffolds for bone tissue regeneration.
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Affiliation(s)
| | | | | | | | - Raúl Rosales-Ibañez
- c Laboratorio Académico de Ingeniería Tisular y Medicina Traslacional, FES Iztacala, Universidad Nacional Autónoma de México , Tlalnepantla , Estado de México , México
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8
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Alekseeva T, Tsebrienko T, Babkina N, Iarova N, Vorontsova L. Structure and properties of interpenetrating polymer networks containing poly(titanium oxide) obtained in 2-hydroxyethyl methacrylate medium. Polym J 2018. [DOI: 10.15407/polymerj.40.02.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Monteiro MSDSB, Tavares MIB. The Development and Characterization of Polycaprolactone and Titanium Dioxide Hybrids. ACTA ACUST UNITED AC 2018. [DOI: 10.4236/anp.2018.71002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Ghosal A, Ahmad S. High performance anti-corrosive epoxy–titania hybrid nanocomposite coatings. NEW J CHEM 2017. [DOI: 10.1039/c6nj03906e] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mechanical stability, surface hydrophobicity, and thermal stability of anticorrosive polymeric coatings play a significant role in technological and industrial fields.
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Affiliation(s)
- Anujit Ghosal
- Materials Research Laboratory
- Department of Chemistry
- Jamia Millia Islamia
- New Delhi
- India
| | - Sharif Ahmad
- Materials Research Laboratory
- Department of Chemistry
- Jamia Millia Islamia
- New Delhi
- India
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11
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The viscoelastic properties of the organic-inorganic IPN based on polyurethane, poly(hydroxyethyl methacrylate) and polу(titanium oxide), obtained by sol-gel method. Polym J 2016. [DOI: 10.15407/polymerj.38.04.288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Can-Herrera L, Ávila-Ortega A, de la Rosa-García S, Oliva A, Cauich-Rodríguez J, Cervantes-Uc J. Surface modification of electrospun polycaprolactone microfibers by air plasma treatment: Effect of plasma power and treatment time. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.09.060] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Mallakpour S, Nouruzi N. Effect of modified ZnO nanoparticles with biosafe molecule on the morphology and physiochemical properties of novel polycaprolactone nanocomposites. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.02.038] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Bajsić EG, Mijović B, Penava NV, Grgurić TH, Slouf M, Zdraveva E. The effect of UV irradiation on the electrospun PCL/TiO2composites fibers. J Appl Polym Sci 2016. [DOI: 10.1002/app.43539] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Emi Govorčin Bajsić
- Faculty of Chemical Engineering and Technology; Department of Polymer Engineering and Organic Chemical Technology, University of Zagreb; Marulicev trg 19 Zagreb HR-10000 Croatia
| | - Budimir Mijović
- Faculty of Textile Technology; Department of Basic, Natural and Technical Sciences, University of Zagreb; Prilaz baruna Filipovica 28 a Zagreb HR-10000 Croatia
| | - Nina Vranješ Penava
- Faculty of Chemical Engineering and Technology; Department of Polymer Engineering and Organic Chemical Technology, University of Zagreb; Marulicev trg 19 Zagreb HR-10000 Croatia
| | - Tamara Holjevac Grgurić
- Faculty of Metallurgy; Department of Physical Metallurgy, University of Zagreb; Aleja narodnih heroja 3 Sisak HR-44103 Croatia
| | - Miroslav Slouf
- Institute of Macromolecular Chemistry of the as CR; v.v.i, Heyrovskeho nam. 2 16206 Czech Republic
| | - Emilija Zdraveva
- Faculty of Textile Technology; Department of Basic, Natural and Technical Sciences, University of Zagreb; Prilaz baruna Filipovica 28 a Zagreb HR-10000 Croatia
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15
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Hybrid latex particles preparation with seeded semibatch emulsion polymerization. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.06.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Release kinetics of anti-inflammatory drug, and characterization and bioactivity of SiO₂+PCL hybrid material synthesized by
sol-gel processing. J Appl Biomater Funct Mater 2014; 12:218-27. [PMID: 24425379 DOI: 10.5301/jabfm.5000160] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2013] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Controlled and local drug delivery systems of anti-inflammatory agents are drawing increasing attention thanks to their possible pharmaceutical and biomedical applications. These systems have extended therapeutic effects and reduced side effects.
METHODS A single-step sol-gel process was used to prepare organic-inorganic hybrid materials based on silica (SiO2)
and poly-ε-caprolactone, containing ketoprofen for controlled drug delivery applications. Fourier transform infrared spectroscopy analysis proved formation of H-bonds among the carbonyl groups of the polymer chains and Si-OH group of the inorganic matrix. X-ray diffraction analysis highlighted the amorphous nature of the synthesized materials. Scanning electron microscopy and atomic force microscope topography showed their homogeneous morphology and nanostructure nature.
RESULTS The bioactivity of the synthesized hybrid materials was shown by the formation of a layer of hydroxyapatite on the surface of samples soaked in a simulated body fluid (SBF).
CONCLUSION Release kinetics in SBF were subsequently investigated by means of UV-VIS spectroscopy. A large amount of drug release occurred during the first few hours, then a slower drug release supplied a maintenance dose until the end of the experiment.
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17
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Fabrication of Metal Oxide–Polymer Hybrid Nanocomposites. ORGANIC-INORGANIC HYBRID NANOMATERIALS 2014. [DOI: 10.1007/12_2014_285] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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18
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Kasyapi N, Bhowmick AK. Nanolamellar triblock of poly-d,l-lactide–δ-valerolactone–d,l-lactide with tuneable glass transition temperature and crystallinity for use as a drug-delivery vesicle. RSC Adv 2014. [DOI: 10.1039/c4ra02745k] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A d,l-lactide–δ-valerolactone–d,l-lactide triblock copolymer, synthesized by sequential ring-opening polymerization, showed a nanolamellar morphology and was fabricated into microspheres for drug delivery.
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Affiliation(s)
- Nibedita Kasyapi
- Department of Materials Science and Engineering
- School of Engineering and Technology
- Indian Institute of Technology Patna
- Patna 800013, India
| | - Anil K. Bhowmick
- Department of Materials Science and Engineering
- School of Engineering and Technology
- Indian Institute of Technology Patna
- Patna 800013, India
- Department of Chemistry
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19
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Kaur S, Gallei M, Ionescu E. Polymer–Ceramic Nanohybrid Materials. ORGANIC-INORGANIC HYBRID NANOMATERIALS 2014. [DOI: 10.1007/12_2014_282] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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20
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Surface modification of inorganic nanoparticles for development of organic–inorganic nanocomposites—A review. Prog Polym Sci 2013. [DOI: 10.1016/j.progpolymsci.2013.02.003] [Citation(s) in RCA: 1475] [Impact Index Per Article: 134.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Alp B, Cesur S. Isothermal crystallization kinetics and mechanical properties of polycaprolactone composites with zinc oxide, oleic acid, and glycerol monooleate. J Appl Polym Sci 2013. [DOI: 10.1002/app.39217] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Burcu Alp
- Department of Chemical Engineering; Izmir Institute of Technology; Izmir Turkey
| | - Serap Cesur
- Department of Chemical Engineering; Ege University; Izmir Turkey
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22
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Lin G, Cosimbescu L, Karin NJ, Gutowska A, Tarasevich BJ. Injectable and thermogelling hydrogels of PCL-g-PEG: mechanisms, rheological and enzymatic degradation properties. J Mater Chem B 2013; 1:1249-1255. [DOI: 10.1039/c2tb00468b] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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Oliveira M, Nogueira R, Machado A. Synthesis of aluminium nanoparticles in a PP matrix during melt processing: Effect of the alkoxide organic chain. REACT FUNCT POLYM 2012. [DOI: 10.1016/j.reactfunctpolym.2012.06.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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24
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Wu CS. Characterizing polycaprolactone/SiO2–TiO2 nanocomposites synthesized via in situ sol–gel polymerization. Des Monomers Polym 2012. [DOI: 10.1163/156855507781505129] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Chin-San Wu
- a Department of Biochemical Engineering and Graduate Institute of Environmental Polymer Materials, Kao Yuan University, Kaohsiung County, Taiwan 82101, Republic of China
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25
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Gupta KK, Kundan A, Mishra PK, Srivastava P, Mohanty S, Singh NK, Mishra A, Maiti P. Retracted Article: Polycaprolactone composites with TiO2 for potential nanobiomaterials: tunable properties using different phases. Phys Chem Chem Phys 2012; 14:12844-53. [DOI: 10.1039/c2cp41789h] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
TiO2 nanoparticles of different phases play a key role in property alteration of nanocomposite fibers.
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Affiliation(s)
- Kamal K. Gupta
- Department of Chemical Engineering
- Institute of Technology
- Banaras Hindu University
- Varanasi-221005
- India
| | - Akshay Kundan
- Department of Chemical Engineering
- Institute of Technology
- Banaras Hindu University
- Varanasi-221005
- India
| | - Pradeep K. Mishra
- Department of Chemical Engineering
- Institute of Technology
- Banaras Hindu University
- Varanasi-221005
- India
| | - Pradeep Srivastava
- School of Biochemical Engineering
- Institute of Technology
- Banaras Hindu University
- Varanasi-221005
- India
| | - Sujata Mohanty
- Stem Cell Facility
- All India Institute of Medical Sciences
- New Delhi-110029
- India
| | - Narendra K. Singh
- School of Material Science & Technology
- Institute of Technology
- Banaras Hindu University
- Varanasi-221005
- India
| | - Abhinay Mishra
- School of Material Science & Technology
- Institute of Technology
- Banaras Hindu University
- Varanasi-221005
- India
| | - Pralay Maiti
- School of Material Science & Technology
- Institute of Technology
- Banaras Hindu University
- Varanasi-221005
- India
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26
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Crystallization behavior of poly(ϵ-caprolactone)/Tio2
nanocomposites obtained by in situ polymerization. POLYM ENG SCI 2011. [DOI: 10.1002/pen.22165] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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27
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Wu LG, Wang T, Xiang W, Du CH. Influence of reactant concentration on formation of AgCl particles in PEO-PPO-PEO microemulsion and morphology and performance of AgCl-PMMA membranes. J Appl Polym Sci 2011. [DOI: 10.1002/app.35421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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28
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Zhang J, Yang M, Maurer FHJ. Effect of TiO2 Formation on the Free Volume Properties of Electrospun PMMA Nanohybrids. Macromolecules 2011. [DOI: 10.1021/ma201004b] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Junhua Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Mingshu Yang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Frans H. J. Maurer
- Polymer & Materials Chemistry, Department of Chemistry, Lund University, SE-22100 Lund, Sweden
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Zeng JB, Srinivansan M, Li YD, Narayan R, Wang YZ. Rapid ring-opening polymerization of 1,4-dioxan-2-one initiated by titanium alkoxides. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24399] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Wang S, Han C, Han L, Wang X, Bian J, Zhuang Y, Dong L. Gamma radiation on poly(ϵ-caprolactone) in the presence of vinyltrimethoxysilane. POLYM ENG SCI 2010. [DOI: 10.1002/pen.21832] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Han C, Bian J, Liu H, Dong L. Effect of γ-radiation on the thermal and mechanical properties of a commercial poly(butylene adipate-co
-terephthalate). POLYM INT 2009. [DOI: 10.1002/pi.2580] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Preparation and characterization of biodegradable polycaprolactone/multiwalled carbon nanotubes nanocomposites. J Appl Polym Sci 2009. [DOI: 10.1002/app.29485] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Sciancalepore C, Cassano T, Curri ML, Mecerreyes D, Valentini A, Agostiano A, Tommasi R, Striccoli M. TiO(2) nanorods/PMMA copolymer-based nanocomposites: highly homogeneous linear and nonlinear optical material. NANOTECHNOLOGY 2008; 19:205705. [PMID: 21825748 DOI: 10.1088/0957-4484/19/20/205705] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Original nanocomposites have been obtained by direct incorporation of pre-synthesized oleic acid capped TiO(2) nanorods into properly functionalized poly(methyl methacrylate) copolymers, carrying carboxylic acid groups on the repeating polymer unit. The presence of carboxylic groups on the alkyl chain of the host functionalized copolymer allows an highly homogeneous dispersion of the nanorods in the organic matrix. The prepared TiO(2)/PMMA-co-MA nanocomposites show high optical transparency in the visible region, even at high TiO(2) nanorod content, and tunable linear refractive index depending on the nanoparticle concentration. Finally measurements of nonlinear optical properties of TiO(2) polymer nanocomposites demonstrate a negligible two-photon absorption and a negative value of nonlinear refractive index, highlighting the potential of the nanocomposite for efficient optical devices operating in the visible region.
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Affiliation(s)
- C Sciancalepore
- Dipartimento di Chimica, Università di Bari, Via Orabona 4, I-70126 Bari, Italy
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Di Gianni A, Trabelsi S, Rizza G, Sangermano M, Althues H, Kaskel S, Voit B. Hyperbranched Polymer/TiO2 Hybrid Nanoparticles Synthesized via an In Situ Sol-Gel Process. MACROMOL CHEM PHYS 2007. [DOI: 10.1002/macp.200600431] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Han C, Ran X, Su X, Zhang K, Liu N, Dong L. Effect of peroxide crosslinking on thermal and mechanical properties of poly(ɛ-caprolactone). POLYM INT 2007. [DOI: 10.1002/pi.2156] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Chen Y, Zhou S, Gu G, Wu L. Microstructure and properties of polyester-based polyurethane/titania hybrid films prepared by sol–gel process. POLYMER 2006. [DOI: 10.1016/j.polymer.2005.12.073] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wu CS. Synthesis of polyethylene-octene elastomer/SiO2-TiO2 nanocomposites via in situ polymerization: Properties and characterization of the hybrid. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/pola.20649] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Xiong M, Zhou S, You B, Wu L. Trialkoxysilane-capped acrylic resin/titania organic-inorganic hybrid optical films prepared by the sol-gel process. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/polb.20357] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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