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Tananaiko O, Walcarius A. Composite Silica-Based Films as Platforms for Electrochemical Sensors. CHEM REC 2024; 24:e202300194. [PMID: 37737456 DOI: 10.1002/tcr.202300194] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/29/2023] [Indexed: 09/23/2023]
Abstract
Sol-gel-derived silica thin films generated onto electrode surfaces in the form of organic-inorganic hybrid coatings or other composite layers have found tremendous interest for being used as platforms for the development of electrochemical sensors and biosensors. After a brief description of the strategies applied to prepare such materials, and their interest as electrode modifier, this review will summarize the major advances made so far with composite silica-based films in electroanalysis. It will primarily focus on electrochemical sensors involving both non-ordered composite films and vertically oriented mesoporous membranes, the biosensors exploiting the concept of sol-gel bioencapsulation on electrode, the spectroelectrochemical sensors, and some others.
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Affiliation(s)
- Oksana Tananaiko
- Department of Analytical Chemistry, National Taras Shevchenko University of Kyiv, Volodymyrska Str., 64, Kyiv, Ukraine, 01601
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2
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Mittal M, Ahuja S, Yadav A, Aggarwal NK. Development of poly(hydroxybutyrate) film incorporated with nano silica and clove essential oil intended for active packaging of brown bread. Int J Biol Macromol 2023; 233:123512. [PMID: 36739047 DOI: 10.1016/j.ijbiomac.2023.123512] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/25/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023]
Abstract
The objective of current study was to develop Poly(hydroxybutyrate) (PHB) based active packaging film with long lasting antimicrobial potential in food-packaging applications. For developing such films, PHB was incorporated with poly(ethylene glycol) (PEG) as a plasticizer, nano-silica (n-Si) as strengthening material and clove essential oil (CEO) as an antimicrobial agent. These solvent-casted films with varying concentration of n-Si (0.5, 1, 1.5, 2 %) and 30 % CEO of total polymer matrix weight i.e., PHB/PEG (90/10) were prepared and studied on the basis of morphological, mechanical, thermal, degradation and antimicrobial behaviours. The presence of CEO and n-Si was confirmed by Fourier transform infrared spectroscopy (FTIR). Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD) were used to investigate homogeneous dispersal of n-Si in polymer matrix. PHB/PEG/CEO/Si 1.0 film was selected as optimized one after mechanical testing and therefore further carried for antimicrobial testing. This selected film extended the shelf-life of brown bread up to 10 days comparable to bread wrapped in polyethylene. This revealed that PHB/PEG/CEO/Si 1.0 exhibited superior antibacterial activity against the food borne microbes i.e., Escherichia coli, Staphylococcus aureus and Aspergillus niger. Our findings indicate that this film improved the shelf-life of packaged bread and has promising features for active food packaging.
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Affiliation(s)
- Mahak Mittal
- Laboratory of Fermentation Technology, Department of Microbiology, Kurukshetra 136119, Haryana, India
| | - Simran Ahuja
- Department of Chemistry, Kurukshetra 136119, Haryana, India
| | - Anita Yadav
- Department of Biotechnology, Kurukshetra 136119, Haryana, India.
| | - Neeraj K Aggarwal
- Laboratory of Fermentation Technology, Department of Microbiology, Kurukshetra 136119, Haryana, India.
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3
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Kumarage S, Munaweera I, Kottegoda N. Contemporary, Multidisciplinary Roles of Mesoporous Silica Nanohybrids/Nanocomposites. ChemistrySelect 2022. [DOI: 10.1002/slct.202200574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Senuri Kumarage
- Department of Chemistry Faculty of Applied Sciences University of Sri Jayewardenepura Gangodawila Nugegoda Sri Lanka
| | - Imalka Munaweera
- Department of Chemistry Faculty of Applied Sciences University of Sri Jayewardenepura Gangodawila Nugegoda Sri Lanka
| | - Nilwala Kottegoda
- Department of Chemistry Faculty of Applied Sciences University of Sri Jayewardenepura Gangodawila Nugegoda Sri Lanka
- Centre for Advanced Materials Research (CAMR) Faculty of Applied Sciences University of Sri Jayewardenepura Gangodawila Nugegoda Sri Lanka
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4
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Hocken A, Beyer FL, Lee JS, Grim BJ, Mithaiwala H, Green MD. Covalently integrated silica nanoparticles in poly(ethylene glycol)-based acrylate resins: thermomechanical, swelling, and morphological behavior. SOFT MATTER 2022; 18:1019-1033. [PMID: 35018933 DOI: 10.1039/d1sm01377g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Nanocomposites integrate functional nanofillers into viscoelastic matrices for electronics, lightweight structural materials, and tissue engineering. Herein, the effect of methacrylate-functionalized (MA-SiO2) and vinyl-functionalized (V-SiO2) silica nanoparticles on the thermal, mechanical, physical, and morphological characteristics of poly(ethylene glycol) (PEG) nanocomposites was investigated. The gel fraction of V-SiO2 composites decreases upon addition of 3.8 wt% but increases with further addition (>7.4 wt%) until it reaches a plateau at 10.7 wt%. The MA-SiO2 induced no significant changes in gel fraction and both V-SiO2 and MA-SiO2 nanoparticles had a negligible impact on the nanocomposite glass transition temperature and water absorption. The Young's modulus and ultimate compressive stress increased with increasing nanoparticle concentration for both nanoparticles. Due to the higher crosslink density, MA-SiO2 composites reached a maximum mechanical stress at a concentration of 7.4 wt%, while V-SiO2 composites reached a maximum at a concentration of 10.7 wt%. Scanning electron microscopy, transmission electron microscopy, and small-angle X-ray scattering revealed a bimodal size distribution for V-SiO2 and a monomodal size distribution for MA-SiO2. Although aggregates were observed for both nanoparticle surface treatments, V-SiO2 dispersion was poor while MA-SiO2 were generally well-dispersed. These findings lay the framework for silica nanofillers in PEG-based nanocomposites for advanced manufacturing applications.
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Affiliation(s)
- Alexis Hocken
- Department of Chemical Engineering; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
| | - Frederick L Beyer
- U.S. DEVCOM Army Research Laboratory, Aberdeen Proving Ground, MD 21005, USA
| | - Jae Sang Lee
- Department of Chemical Engineering; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
| | - Bradley J Grim
- Department of Chemical Engineering; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
| | - Husain Mithaiwala
- Department of Chemical Engineering; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
| | - Matthew D Green
- Department of Chemical Engineering; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
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Harish V, Tewari D, Gaur M, Yadav AB, Swaroop S, Bechelany M, Barhoum A. Review on Nanoparticles and Nanostructured Materials: Bioimaging, Biosensing, Drug Delivery, Tissue Engineering, Antimicrobial, and Agro-Food Applications. NANOMATERIALS 2022; 12:nano12030457. [PMID: 35159802 PMCID: PMC8839643 DOI: 10.3390/nano12030457] [Citation(s) in RCA: 99] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 01/19/2022] [Accepted: 01/23/2022] [Indexed: 01/27/2023]
Abstract
In the last few decades, the vast potential of nanomaterials for biomedical and healthcare applications has been extensively investigated. Several case studies demonstrated that nanomaterials can offer solutions to the current challenges of raw materials in the biomedical and healthcare fields. This review describes the different nanoparticles and nanostructured material synthesis approaches and presents some emerging biomedical, healthcare, and agro-food applications. This review focuses on various nanomaterial types (e.g., spherical, nanorods, nanotubes, nanosheets, nanofibers, core-shell, and mesoporous) that can be synthesized from different raw materials and their emerging applications in bioimaging, biosensing, drug delivery, tissue engineering, antimicrobial, and agro-foods. Depending on their morphology (e.g., size, aspect ratio, geometry, porosity), nanomaterials can be used as formulation modifiers, moisturizers, nanofillers, additives, membranes, and films. As toxicological assessment depends on sizes and morphologies, stringent regulation is needed from the testing of efficient nanomaterials dosages. The challenges and perspectives for an industrial breakthrough of nanomaterials are related to the optimization of production and processing conditions.
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Affiliation(s)
- Vancha Harish
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144401, India; (V.H.); (D.T.)
| | - Devesh Tewari
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144401, India; (V.H.); (D.T.)
| | - Manish Gaur
- Centre of Biotechnology, University of Allahabad, Prayagraj, Uttar Pradesh 211002, India;
| | - Awadh Bihari Yadav
- Centre of Biotechnology, University of Allahabad, Prayagraj, Uttar Pradesh 211002, India;
- Correspondence: (A.B.Y.); (M.B.); (A.B.)
| | - Shiv Swaroop
- Department of Biochemistry, Central University of Rajasthan, Ajmer 305817, India;
| | - Mikhael Bechelany
- Institut Européen des Membranes, IEM UMR 5635, University Montpellier, ENSCM, CNRS, 34730 Montpellier, France
- Correspondence: (A.B.Y.); (M.B.); (A.B.)
| | - Ahmed Barhoum
- NanoStruc Research Group, Chemistry Department, Faculty of Science, Ain Helwan, Cairo 11795, Egypt
- National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, D09 Y074 Dublin, Ireland
- Correspondence: (A.B.Y.); (M.B.); (A.B.)
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6
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Layer-by-layer assembly of nanofilms from colloidally stable amine-functionalized silica nanoparticles. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127615] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Martins TD, Ribeiro T, Farinha JPS. Overview of Silica-Polymer Nanostructures for Waterborne High-Performance Coatings. Polymers (Basel) 2021; 13:1003. [PMID: 33805231 PMCID: PMC8037112 DOI: 10.3390/polym13071003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 11/26/2022] Open
Abstract
Combining organic and inorganic components at a nanoscale is an effective way to obtain high performance coating materials with excellent chemical and physical properties. This review focuses on recent approaches to prepare hybrid nanostructured waterborne coating materials combining the mechanical properties and versatility of silica as the inorganic filler, with the flexural properties and ease of processing of the polymer matrix. We cover silica-polymer coupling agents used to link the organic and inorganic components, the formation of hybrid films from these silica-polymer nanostructures, and their different applications. These hybrid nanostructures can be used to prepare high performance functional coatings with different properties from optical transparency, to resistance to temperature, hydrophobicity, anti-corrosion, resistance to scratch, and antimicrobial activity.
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Affiliation(s)
| | | | - José Paulo S. Farinha
- Centro de Química Estrutural, Department of Chemical Engineering, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (T.D.M.); (T.R.)
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8
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Tinkler JD, Scacchi A, Kothari HR, Tulliver H, Argaiz M, Archer AJ, Martín-Fabiani I. Evaporation-driven self-assembly of binary and ternary colloidal polymer nanocomposites for abrasion resistant applications. J Colloid Interface Sci 2021; 581:729-740. [PMID: 32818678 DOI: 10.1016/j.jcis.2020.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/10/2020] [Accepted: 08/01/2020] [Indexed: 10/23/2022]
Abstract
We harness the self-assembly of aqueous binary latex/silica particle blends during drying to fabricate films segregated by size in the vertical direction. We report for the first time the experimental drying of ternary colloidal dispersions and demonstrate how a ternary film containing additional small latex particles results in improved surface stability and abrasion resistance compared with a binary film. Through atomic force microscopy (AFM) and energy-dispersive X-ray spectroscopy (EDX), we show that the vertical distribution of filler particles and the surface morphologies of the films can be controlled by altering the evaporation rate and silica volume fraction. We report the formation of various silica superstructures at the film surface, which we attribute to a combination of diffusiophoresis and electrostatic interactions between particles. Brownian dynamics simulations of the final stages of solvent evaporation provide further evidence for this formation mechanism. We show how an additional small latex particle population results in an increased abrasion resistance of the film without altering its morphology or hardness. Our work provides a method to produce water-based coatings with enhanced abrasion resistance as well as valuable insights into the mechanisms behind the formation of colloidal superstructures.
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Affiliation(s)
- James D Tinkler
- Department of Materials, Loughborough University, Loughborough, UK.
| | - Alberto Scacchi
- Department of Mathematical Sciences, Loughborough University, Loughborough, UK
| | - Harsh R Kothari
- Department of Materials, Loughborough University, Loughborough, UK
| | - Hanna Tulliver
- Department of Materials, Loughborough University, Loughborough, UK
| | - Maialen Argaiz
- POLYMAT and Departmento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country, UPV/EHU, Donostia-San Sebastian, Spain
| | - Andrew J Archer
- Department of Mathematical Sciences, Loughborough University, Loughborough, UK
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9
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Abstract
With the development of human society, the requirements for building materials are becoming higher. The development of polymer materials and their application in the field of architecture have greatly enhanced and broadened the functions of building materials. With the development of material science and technology, many functional materials have been developed. Polymer materials have many excellent properties compared with inorganic materials, and they can also be improved to enhance functional properties by blending or adding various additives (such as flame retardants, antistatic agents, and antioxidants). In this paper, polymer-based building materials are introduced with three classes according to the applications, that is, substrates, coatings, and binders, and their recent signs of progress in the preparations and applications are carefully demonstrated.
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10
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Losaria PM, Yim J. Enhancement of Strain‐Sensing Performance through Gas Phase Incorporation of Siloxane into Thermoplastic Polyurethane‐Conducting Polymer Composite. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Pauline May Losaria
- Division of Advanced Materials EngineeringKongju National University Budaedong 275, Seobuk‐gu Cheonan‐si Chungnam 31080 South Korea
| | - Jin‐Heong Yim
- Division of Advanced Materials EngineeringKongju National University Budaedong 275, Seobuk‐gu Cheonan‐si Chungnam 31080 South Korea
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11
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Sharma J, Cullen DA, Polizos G, Nawaz K, Wang H, Muralidharan N, Smith DB. Hybrid hollow silica particles: synthesis and comparison of properties with pristine particles. RSC Adv 2020; 10:22331-22334. [PMID: 35514583 PMCID: PMC9054576 DOI: 10.1039/d0ra02888f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/04/2020] [Indexed: 11/30/2022] Open
Abstract
In the past decade, interest in hollow silica particles has grown tremendously because of their applications in diverse fields such as thermal insulation, drug delivery, battery cathodes, catalysis, and functional coatings. Herein, we demonstrate a strategy to synthesize hybrid hollow silica particles having shells made of either polymer-silica or carbon–silica. Hybrid shells were characterized using electron microscopy. The effect of hybrid shell type on particle properties such as thermal and moisture absorption was also investigated. Hybrid hollow silica particles, which show different properties compared to their pristine counterparts, have been synthesized.![]()
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Affiliation(s)
- Jaswinder Sharma
- Roll-to-Roll Manufacturing Group, Energy and Transportation Science Division, Oak Ridge National Laboratory Oak Ridge TN 37831 USA +1-(865)241-2333.,Building Technologies Research and Integration Center, Oak Ridge National Laboratory Oak Ridge TN 37831 USA
| | - David A Cullen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory Oak Ridge TN 37831 USA
| | - Georgios Polizos
- Roll-to-Roll Manufacturing Group, Energy and Transportation Science Division, Oak Ridge National Laboratory Oak Ridge TN 37831 USA +1-(865)241-2333
| | - Kashif Nawaz
- Building Technologies Research and Integration Center, Oak Ridge National Laboratory Oak Ridge TN 37831 USA
| | - Hsin Wang
- Materials Science and Technology Division, Oak Ridge National Laboratory Oak Ridge TN 37831 USA
| | - Nitin Muralidharan
- Roll-to-Roll Manufacturing Group, Energy and Transportation Science Division, Oak Ridge National Laboratory Oak Ridge TN 37831 USA +1-(865)241-2333
| | - David Barton Smith
- Roll-to-Roll Manufacturing Group, Energy and Transportation Science Division, Oak Ridge National Laboratory Oak Ridge TN 37831 USA +1-(865)241-2333
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12
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Nirwan VP, Pandey S, Hey‐Hawkins E, Fahmi A. Hybrid 2D nanofibers based on poly(ethylene oxide)/polystyrene matrix and poly(ferrocenylphosphinoboranes) as functional agents. J Appl Polym Sci 2020. [DOI: 10.1002/app.49091] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Viraj P. Nirwan
- Faculty of Technology and BionicsRhine‐Waal University of Applied Sciences Kleve Germany
- Aix‐Marseille University, CNRS, LP3 UMR 7341 Marseille Cedex 9 France
| | - Souvik Pandey
- Fakultät für Chemie und MineralogieInstitut für Anorganische Chemie Leipzig Germany
- Department of ChemistryJadavpur University Kolkata India
| | - Evamarie Hey‐Hawkins
- Fakultät für Chemie und MineralogieInstitut für Anorganische Chemie Leipzig Germany
| | - Amir Fahmi
- Faculty of Technology and BionicsRhine‐Waal University of Applied Sciences Kleve Germany
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Kim GH, Hwang SW, Kang DH, Jung BN, Lee MJ, Shim JK, Seo KH. Controllable synthesis of silica nanoparticle size and packing efficiency onto PVP‐functionalized PMMA via a sol–gel method. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20190115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Gi H. Kim
- Korea Packaging CenterKorea Institute of Industrial Technology 14449 Bucheon South Korea
- School of Applied Chemical Engineering, Kyungpook National University 41566 Daegu South Korea
| | - Sung W. Hwang
- Department of Chemical EngineeringKeimyung University 42601 Daegu South Korea
| | - Dong H. Kang
- Korea Packaging CenterKorea Institute of Industrial Technology 14449 Bucheon South Korea
| | - Bich N. Jung
- Korea Packaging CenterKorea Institute of Industrial Technology 14449 Bucheon South Korea
| | - Mi J. Lee
- Korea Packaging CenterKorea Institute of Industrial Technology 14449 Bucheon South Korea
| | - Jin K. Shim
- Korea Packaging CenterKorea Institute of Industrial Technology 14449 Bucheon South Korea
| | - Kwan H. Seo
- Department of Polymer Science and EngineeringKyungpook National University 41566 Daegu South Korea
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14
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Barquero A, Agirre A, Barandiaran MJ, Leiza JR. Monitoring the evolution of the microstructure of vinyl silane monomer containing poly(vinyl acetate) based copolymer latexes during storage. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109299] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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15
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An Electrochemical DNA Biosensor for Carcinogenicity of Anticancer Compounds Based on Competition between Methylene Blue and Oligonucleotides. SENSORS 2019; 19:s19235111. [PMID: 31766637 PMCID: PMC6928940 DOI: 10.3390/s19235111] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/18/2019] [Accepted: 11/20/2019] [Indexed: 12/15/2022]
Abstract
A toxicity electrochemical DNA biosensor has been constructed for the detection of carcinogens using 24 base guanine DNA rich single stranded DNA, and methylene blue (MB) as the electroactive indicator. This amine terminated ssDNA was immobilized onto silica nanospheres and deposited on gold nanoparticle modified carbon-paste screen printed electrodes (SPEs). The modified SPE was initially exposed to a carcinogen, followed by immersion in methylene blue for an optimized duration. The biosensor response was measured using differential pulse voltammetry. The performance of the biosensor was identified on several anti-cancer compounds. The toxicity DNA biosensor demonstrated a linear response range to the cadmium chloride from 0.0005 ppm to 0.01 ppm (R2 = 0.928) with a limit of detection at 0.0004 ppm. The biosensor also exhibited its versatility to screen the carcinogenicity of potential anti-cancer compounds.
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Versatile Layer-By-Layer Highly Stable Multilayer Films: Study of the Loading and Release of FITC-Labeled Short Peptide in the Drug Delivery Field. MATERIALS 2019; 12:ma12081206. [PMID: 31013816 PMCID: PMC6514557 DOI: 10.3390/ma12081206] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/11/2019] [Accepted: 04/11/2019] [Indexed: 12/14/2022]
Abstract
A viable short FITC-peptide immobilization is the most essential step in the fabrication of multilayer films based on FITC-peptide. These functional multilayer films have potential applications in drug delivery, medical therapy, and so forth. These FITC-peptides films needed to be handled with a lot of care and precision due to their sensitive nature. In this study, a general immobilization method is reported for the purpose of stabilizing various kinds of peptides at the interfacial regions. Utilizing Mesoporous silica nanoparticles can help in the preservation of these FITC-peptides by embedding themselves into these covalently cross-linked multilayers. This basic outlook of the multilayer films is potent enough and could be reused as a positive substrate. The spatio-temporal retention property of peptides can be modulated by varying the number of capping layers. The release speed of guest molecules such as tyrosine within FITC-peptide or/and adamantane (Ad)-in short peptides could also be fine-tuned by the specific arrangements of the multilayers of mesoporous silica nanoparticles (MSNs) and hyaluronic acid- cyclodextrin (HA-CD) multilayer films.
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17
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Wahab R, Khan F, Gupta A, Wiggers H, Saquib Q, Faisal M, Ansari SM. Microwave plasma-assisted silicon nanoparticles: cytotoxic, molecular, and numerical responses against cancer cells. RSC Adv 2019; 9:13336-13347. [PMID: 35520784 PMCID: PMC9063978 DOI: 10.1039/c8ra10185j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 03/24/2019] [Indexed: 12/27/2022] Open
Abstract
Silicon nanoparticles (SiNPs), which have a special place in material science due to their strong luminescent property and wide applicability in various physicochemical arenas synthesised via a microwave plasma-assisted process using an argon–silane mixture.
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Affiliation(s)
- Rizwan Wahab
- Zoology Department
- College of Science
- King Saud University
- Riyadh 11451
- Saudi Arabia
| | - Farheen Khan
- Chemistry Department
- Faculty of Science
- Taibah University
- Yanbu
- Saudi Arabia
| | - Anoop Gupta
- Institute for Combustion and Gas Dynamics
- University of Duisburg-Essen
- Duisburg
- Germany
| | - Hartmut Wiggers
- Institute for Combustion and Gas Dynamics
- University of Duisburg-Essen
- Duisburg
- Germany
| | - Quaiser Saquib
- Zoology Department
- College of Science
- King Saud University
- Riyadh 11451
- Saudi Arabia
| | - Mohammad Faisal
- Department of Botany & Microbiology
- College of Sciences
- King Saud University
- Riyadh 11451
- Saudi Arabia
| | - Sabiha Mahmood Ansari
- Department of Botany & Microbiology
- College of Sciences
- King Saud University
- Riyadh 11451
- Saudi Arabia
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18
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Ribeiro S, Ribeiro T, Ribeiro C, Correia DM, Farinha JPS, Gomes AC, Baleizão C, Lanceros-Méndez S. Multifunctional Platform Based on Electroactive Polymers and Silica Nanoparticles for Tissue Engineering Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E933. [PMID: 30423943 PMCID: PMC6266809 DOI: 10.3390/nano8110933] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 11/03/2018] [Accepted: 11/06/2018] [Indexed: 02/07/2023]
Abstract
Poly(vinylidene fluoride) nanocomposites processed with different morphologies, such as porous and non-porous films and fibres, have been prepared with silica nanoparticles (SiNPs) of varying diameter (17, 100, 160 and 300 nm), which in turn have encapsulated perylenediimide (PDI), a fluorescent molecule. The structural, morphological, optical, thermal, and mechanical properties of the nanocomposites, with SiNP filler concentration up to 16 wt %, were evaluated. Furthermore, cytotoxicity and cell proliferation studies were performed. All SiNPs are negatively charged independently of the pH and more stable from pH 5 upwards. The introduction of SiNPs within the polymer matrix increases the contact angle independently of the nanoparticle diameter. Moreover, the smallest ones (17 nm) also improve the PVDF Young's modulus. The filler diameter, physico-chemical, thermal and mechanical properties of the polymer matrix were not significantly affected. Finally, the SiNPs' inclusion does not induce cytotoxicity in murine myoblasts (C2C12) after 72 h of contact and proliferation studies reveal that the prepared composites represent a suitable platform for tissue engineering applications, as they allow us to combine the biocompatibility and piezoelectricity of the polymer with the possible functionalization and drug encapsulation and release of the SiNP.
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Grants
- (POCI-01-0145-FEDER-007569), POCI-01-0145-FEDER-028237 UID/BIO/04469, POCI-01-0145-FEDER-006684, NORTE-01-0145-FEDER-000004, SFRH/BD/111478/2015 (S.R.), SFRH/BPD/96707/2013 (T.R.), SFRH/BPD/90870/2012 (C.R.) and SFRH/BPD/121526/2016 (D.C). Fundação para a Ciência e a Tecnologia
- MAT2016-76039-C4-3-R (AEI/FEDER, UE) Ministerio de Economía, Industria y Competitividad, Gobierno de España
- ELKARTEK and HAZITEK Ekonomiaren Garapen eta Lehiakortasun Saila, Eusko Jaurlaritza
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Affiliation(s)
- Sylvie Ribeiro
- Centro/Departamento de Física, Universidade do Minho, 4710-057 Braga, Portugal.
- Centre of Molecular and Environmental Biology (CBMA), Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Tânia Ribeiro
- Centro de Química-Física Molecular and Institute of Nanosciences and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal.
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal.
| | - Clarisse Ribeiro
- Centro/Departamento de Física, Universidade do Minho, 4710-057 Braga, Portugal.
- CEB-Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710 057 Braga, Portugal.
| | - Daniela M Correia
- Chemical Department and CQ-VR, Universidade de Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal.
- BCMaterials, Basque Centre for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain.
| | - José P Sequeira Farinha
- Centro de Química-Física Molecular and Institute of Nanosciences and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal.
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal.
| | - Andreia Castro Gomes
- Centre of Molecular and Environmental Biology (CBMA), Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Carlos Baleizão
- Centro de Química-Física Molecular and Institute of Nanosciences and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal.
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal.
| | - Senentxu Lanceros-Méndez
- BCMaterials, Basque Centre for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain.
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain.
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19
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Kunc F, Balhara V, Brinkmann A, Sun Y, Leek DM, Johnston LJ. Quantification and Stability Determination of Surface Amine Groups on Silica Nanoparticles Using Solution NMR. Anal Chem 2018; 90:13322-13330. [DOI: 10.1021/acs.analchem.8b02803] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Filip Kunc
- National Research Council Canada, Metrology Research Centre, Ottawa, Ontario K1A 0R6, Canada
| | - Vinod Balhara
- National Research Council Canada, Metrology Research Centre, Ottawa, Ontario K1A 0R6, Canada
| | - Andreas Brinkmann
- National Research Council Canada, Metrology Research Centre, Ottawa, Ontario K1A 0R6, Canada
| | - Ying Sun
- National Research Council Canada, Metrology Research Centre, Ottawa, Ontario K1A 0R6, Canada
| | - Donald M. Leek
- National Research Council Canada, Metrology Research Centre, Ottawa, Ontario K1A 0R6, Canada
| | - Linda J. Johnston
- National Research Council Canada, Metrology Research Centre, Ottawa, Ontario K1A 0R6, Canada
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20
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Nie K, An Q, Zink JI, Yu X, Zhang Y. Layer by Layer Mesoporous Silica-Hyaluronic Acid-Cyclodextrin Bifunctional "Lamination": Study of the Application of Fluorescent Probe and Host⁻Guest Interactions in the Drug Delivery Field. MATERIALS 2018; 11:ma11091745. [PMID: 30227631 PMCID: PMC6164273 DOI: 10.3390/ma11091745] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 09/13/2018] [Accepted: 09/14/2018] [Indexed: 02/06/2023]
Abstract
The layer-by-layer technique was exploited to adjust the magnitude of the host⁻guest interactions between adamantane and cyclodextrin. The effect depends on numerous complex and changeable growth profiles of the films and the number of bilayers. These composite films of mesoporous silica nanoparticles and hyaluronic acid⁻cyclodextrin(HA-CD) were constructed to load the fluorescent dyes and peptides. The release rates of these molecules would decrease with an increase in the number of layers. A laser scanning confocal microscope was utilized to obtain the diffusion coefficient of fluorescein isothiocyanate. Hybrid films could be applied to increase the loading of different kinds of molecules and could also be integrated into the lamination to delay the rate of release.
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Affiliation(s)
- Kun Nie
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China.
| | - Qi An
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China.
| | - Jeffrey I Zink
- Department of Chemistry and Biochemistry and California Nano Systems Institute, University of California, Los Angeles, CA 90095, USA.
| | - Xiang Yu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China.
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China.
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21
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Waterborne Acrylate-Based Hybrid Coatings with Enhanced Resistance Properties on Stone Surfaces. COATINGS 2018. [DOI: 10.3390/coatings8080283] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The application of coating polymers to building materials is a simple and cheap way to preserve and protect surfaces from weathering phenomena. Due to its environmentally friendly character, waterborne coating is the most popular type of coating, and improving its performance is an important key of research. The study presents the results regarding the mechanical and photo-oxidation resistance of some water-based acrylic coatings containing SiO2 nanoparticles obtained by batch miniemulsion polymerization. Coating materials have been characterized in terms of hydrophobic/hydrophilic behavior, mechanical resistance and surface morphology by means of water-contact angle, and scrub resistance and atomic force microscopy (AFM) measurements depending on silica-nanoparticle content. Moreover, accelerated weathering tests were performed to estimate the photo-oxidation resistance of the coatings. The chemical and color changes were assessed by Fourier-transform infrared spectroscopy (FTIR) and colorimetric measurements. Furthermore, the nanofilled coatings were applied on two different calcareous lithotypes (Lecce stone and Carrara Marble). Its properties, such as capillary water absorption and color modification, before and after accelerated aging tests, were assessed. The properties acquired by the addition of silica nanoparticles in the acrylic matrix can ensure good protection against weathering of stone-based materials.
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22
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Kim DY, Jin SH, Jeong SG, Lee B, Kang KK, Lee CS. Microfluidic preparation of monodisperse polymeric microspheres coated with silica nanoparticles. Sci Rep 2018; 8:8525. [PMID: 29867182 PMCID: PMC5986865 DOI: 10.1038/s41598-018-26829-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 05/09/2018] [Indexed: 01/17/2023] Open
Abstract
The synthesis of organic-inorganic hybrid particles with highly controlled particle sizes in the micrometer range is a major challenge in many areas of research. Conventional methods are limited for nanometer-scale fabrication because of the difficulty in controlling the size. In this study, we present a microfluidic method for the preparation of organic-inorganic hybrid microparticles with poly (1,10-decanediol dimethacrylate-co-trimethoxysillyl propyl methacrylate) (P (DDMA-co-TPM)) as the core and silica nanoparticles as the shell. In this approach, the droplet-based microfluidic method combined with in situ photopolymerization produces highly monodisperse organic microparticles of P (DDMA-co-TPM) in a simple manner, and the silica nanoparticles gradually grow on the surface of the microparticles prepared via hydrolysis and condensation of tetraethoxysilane (TEOS) in a basic ammonium hydroxide medium without additional surface treatment. This approach leads to a reduction in the number of processes and allows drastically improved size uniformity compared to conventional methods. The morphology, composition, and structure of the hybrid microparticles are analyzed by SEM, TEM, FT-IR, EDS, and XPS, respectively. The results indicate the inorganic shell of the hybrid particles consists of SiO2 nanoparticles of approximately 60 nm. Finally, we experimentally describe the formation mechanism of a silica-coating layer on the organic surface of polymeric core particles.
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Affiliation(s)
- Dong-Yeong Kim
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Si Hyung Jin
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Seong-Geun Jeong
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Byungjin Lee
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Kyoung-Ku Kang
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Chang-Soo Lee
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea.
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23
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Cusola O, Kivistö S, Vierros S, Batys P, Ago M, Tardy BL, Greca LG, Roncero MB, Sammalkorpi M, Rojas OJ. Particulate Coatings via Evaporation-Induced Self-Assembly of Polydisperse Colloidal Lignin on Solid Interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:5759-5771. [PMID: 29718673 PMCID: PMC6150720 DOI: 10.1021/acs.langmuir.8b00650] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/04/2018] [Indexed: 05/19/2023]
Abstract
Polydisperse smooth and spherical biocolloidal particles were suspended in aqueous media and allowed to consolidate via evaporation-induced self-assembly. The stratification of the particles at the solid-air interface was markedly influenced, but not monotonically, by the drying rate. Cross-sectional imaging via electron microscopy indicated a structured coating morphology that was distinctive from that obtained by using particles with a mono- or bimodal distribution. Segregation patterns were found to derive from the interplay of particle diffusion, interparticle forces, and settling dynamics. Supporting our experimental findings, computer simulations showed an optimal drying rate for achieving maximum segregation. Overall, stratified coatings comprising nano- and microparticles derived from lignin are expected to open opportunities for multifunctional structures that can be designed and predicted on the basis of experimental Péclet numbers and computational order.
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Affiliation(s)
- Oriol Cusola
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Department of Chemistry
and Materials Science, School of Chemical Engineering, and Department of
Applied Physics, School of Science, Aalto
University, FI-00076 Aalto, Finland
- CELBIOTECH
Research Group, Escola Superior d’Enginyeries
Industrial, Aeroespacial i Audiovisual de Terrassa, 08222 Terrassa, Spain
- E-mail: (O.C.)
| | - Samu Kivistö
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Department of Chemistry
and Materials Science, School of Chemical Engineering, and Department of
Applied Physics, School of Science, Aalto
University, FI-00076 Aalto, Finland
| | - Sampsa Vierros
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Department of Chemistry
and Materials Science, School of Chemical Engineering, and Department of
Applied Physics, School of Science, Aalto
University, FI-00076 Aalto, Finland
| | - Piotr Batys
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Department of Chemistry
and Materials Science, School of Chemical Engineering, and Department of
Applied Physics, School of Science, Aalto
University, FI-00076 Aalto, Finland
- Jerzy
Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, PL-30239 Krakow, Poland
| | - Mariko Ago
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Department of Chemistry
and Materials Science, School of Chemical Engineering, and Department of
Applied Physics, School of Science, Aalto
University, FI-00076 Aalto, Finland
| | - Blaise L. Tardy
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Department of Chemistry
and Materials Science, School of Chemical Engineering, and Department of
Applied Physics, School of Science, Aalto
University, FI-00076 Aalto, Finland
| | - Luiz G. Greca
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Department of Chemistry
and Materials Science, School of Chemical Engineering, and Department of
Applied Physics, School of Science, Aalto
University, FI-00076 Aalto, Finland
| | - M. Blanca Roncero
- CELBIOTECH
Research Group, Escola Superior d’Enginyeries
Industrial, Aeroespacial i Audiovisual de Terrassa, 08222 Terrassa, Spain
| | - Maria Sammalkorpi
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Department of Chemistry
and Materials Science, School of Chemical Engineering, and Department of
Applied Physics, School of Science, Aalto
University, FI-00076 Aalto, Finland
| | - Orlando J. Rojas
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Department of Chemistry
and Materials Science, School of Chemical Engineering, and Department of
Applied Physics, School of Science, Aalto
University, FI-00076 Aalto, Finland
- E-mail: (O.J.R.)
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24
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Improved Optical and Morphological Properties of Vinyl-Substituted Hybrid Silica Materials Incorporating a Zn-Metalloporphyrin. MATERIALS 2018; 11:ma11040565. [PMID: 29642404 PMCID: PMC5951449 DOI: 10.3390/ma11040565] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/02/2018] [Accepted: 04/04/2018] [Indexed: 12/16/2022]
Abstract
This work is focused on a novel class of hybrid materials exhibiting enhanced optical properties and high surface areas that combine the morphology offered by the vinyl substituted silica host, and the excellent absorption and emission properties of 5,10,15,20-tetrakis(N-methyl-4-pyridyl)porphyrin-Zn(II) tetrachloride as a water soluble guest molecule. In order to optimize the synthesis procedure and the performance of the immobilized porphyrin, silica precursor mixtures of different compositions were used. To achieve the requirements regarding the hydrophobicity and the porous structure of the gels for the successful incorporation of porphyrin, the content of vinyltriacetoxysilane was systematically changed and thoroughly investigated. Substitution of the silica gels with organic groups is a viable way to provide new properties to the support. An exhaustive characterization of the synthesized silica samples was realised by complementary physicochemical methods, such as infrared spectroscopy (FT-IR), absorption spectroscopy (UV-Vis) and photoluminescence, nuclear magnetic resonance spectroscopy (29Si-MAS-NMR) transmission and scanning electron microscopy (TEM and SEM), nitrogen absorption (BET), contact angle (CA), small angle X ray and neutron scattering (SAXS and SANS). All hybrids showed an increase in emission intensity in the wide region from 575 to 725 nm (Q bands) in comparison with bare porphyrin. By simply tuning the vinyltriacetoxysilane content, the hydrophilic/hydrophobic profile of the hybrid materials was changed, while maintaining a high surface area. Good control of hydrophobicity is important to enhance properties such as dispersion, stability behaviour, and resistance to water, in order to achieve highly dispersible systems in water for biomedical applications.
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25
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Chau-Nan Hong F, Yan CJ. Synthesis and characterization of silicon oxide nanoparticles using an atmospheric DC plasma torch. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2017.11.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Synthesis and Application of Silica Nanoparticles-Based Biohybrid Sorbents. BIO- AND NANOSORBENTS FROM NATURAL RESOURCES 2018. [DOI: 10.1007/978-3-319-68708-7_8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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27
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Improving the Impact of Commercial Paint on Indoor Air Quality by Using Highly Porous Fillers. BUILDINGS 2017. [DOI: 10.3390/buildings7040110] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Tumnantong D, Rempel GL, Prasassarakich P. Polyisoprene-Silica Nanoparticles Synthesized via RAFT Emulsifier-Free Emulsion Polymerization Using Water-Soluble Initiators. Polymers (Basel) 2017; 9:E637. [PMID: 30965935 PMCID: PMC6418711 DOI: 10.3390/polym9110637] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 11/10/2017] [Accepted: 11/14/2017] [Indexed: 02/07/2023] Open
Abstract
Polyisoprene-silica (PIP-co-RAFT-SiO₂) nanoparticles were prepared via reversible addition⁻fragmentation chain-transfer (RAFT) emulsifier-free emulsion polymerization using water-soluble initiators, 4,4'-Azobis (4-cyanopentanoic acid) (ACP) and 2,2'-Azobis (2-methylpropionamidine) dihydrochloride (V50). The particle size of emulsion prepared using ACP initiator was smaller than that using V50 initiator because the V50 initiator was more active toward decomposition than the ACP initiator. A high monomer conversion (84%), grafting efficiency (83%) and small particle size (38 nm) with narrow size distribution were achieved at optimum condition. The PIP-co-RAFT-SiO₂ nanoparticles exhibited core⁻shell morphology with silica encapsulated with polyisoprene (PIP). The new PIP-SiO₂ nanoparticles could be applied as effective filler in rubber composites that possess good mechanical and thermal properties.
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Affiliation(s)
- Dusadee Tumnantong
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Garry L Rempel
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
| | - Pattarapan Prasassarakich
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
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29
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Ferrocene Molecular Architectures Grafted on Si(111): A Theoretical Calculation of the Standard Oxidation Potentials and Electron Transfer Rate Constant. MATERIALS 2017; 10:ma10101109. [PMID: 28934134 PMCID: PMC5666915 DOI: 10.3390/ma10101109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 09/15/2017] [Accepted: 09/18/2017] [Indexed: 12/03/2022]
Abstract
The standard oxidation potential and the electron transfer (ET) rate constants of two silicon-based hybrid interfaces, Si(111)/organic-spacer/Ferrocene, are theoretically calculated and assessed. The dynamics of the electrochemical driven ET process is modeled in terms of the classical donor/acceptor scheme within the framework of “Marcus theory”. The ET rate constants, kET, are determined following calculation of the electron transfer matrix element, VRP, together with the knowledge of the energy of the neutral and charge separated systems. The recently introduced Constrained Density Functional Theory (CDFT) method is exploited to optimize the structure and determine the energy of the charge separated species. Calculated ET rate constants are kET=77.8 s−1 and kET=1.3×10−9 s−1, in the case of the short and long organic-spacer, respectively.
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30
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Salgado C, Arrieta MP, Peponi L, Fernández-García M, López D. Silica-nanocomposites of photo-crosslinkable poly(urethane)s based on poly(ε-caprolactone) and coumarin. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.05.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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31
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Demirbakan B, Sezgintürk MK. A sensitive and disposable indium tin oxide based electrochemical immunosensor for label-free detection of MAGE-1. Talanta 2017; 169:163-169. [PMID: 28411807 DOI: 10.1016/j.talanta.2017.03.076] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 03/20/2017] [Accepted: 03/25/2017] [Indexed: 01/21/2023]
Abstract
MAGE-1 (MAGE, for melanoma antigen), was identified by virtue of its processing and cell surface expression as a tumor-specific peptide bound to major histocompatibility complexes which was reactive with autolytic T cells. 3-Glycidoxypropyltrimethoxysilane (3-GOPS) is frequently employed for the preparation of dense heterometal hybrid polymers which are used, e.g., for hard coatings of organic polymers and contact lens materials in the optical industry. In this study, we have improved a new immunological biosensor with indium tin oxide (ITO). Then, Anti-MAGE-1 antibody was covalently immobilized with 3-GOPS which formed a self-assembled monolayers (SAMs) on modified ITO electrodes. Analytical characteristics such as square wave voltammetry, linear determination range, repeatability, reproducibility and regeneration of biosensors are determined. All characterization steps are monitored by electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV). The developed biosensor has wide determination range (0.5fg-15fg/mL). To investigate long shelf life of the fabricated biosensor, the immunosensors were stored at 4°C for periods ten weeks. Futhermore, binding kinetics of MAGE1 to antiMAGE-1 is monitored by single frequency technique in real time. Additionally, Kramer's-Kronig transform was used to understand whether the impedance spectra of biosensor system are affected from the variation that occurred because of external factor. Morphological characteristics of constructed biosensor were observed by scanning electron microscopy. Real human serum samples were also analyzed by the proposed biosensor, successfully. A commercial ELISA kit was also used as a reference method to validate the results obtained by the biosensor. Finally, this biosensor was tried in real blood sample and that showed it could be utilized in clinical applications. This biosensor can be preferred due to it has a wide linear range and it can be prepared easily.
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Affiliation(s)
- Burçak Demirbakan
- Namık Kemal University, Faculty of Science, Chemistry Department, Biochemistry Division, Tekirdağ, Turkey.
| | - Mustafa Kemal Sezgintürk
- Çanakkale Eighteen March University, Faculty of Engineering, Bioengineering Department, Çanakkale, Turkey.
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32
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Crucho CIC, Baleizão C, Farinha JPS. Functional Group Coverage and Conversion Quantification in Nanostructured Silica by 1H NMR. Anal Chem 2016; 89:681-687. [PMID: 28105822 DOI: 10.1021/acs.analchem.6b03117] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Silica nanostructured materials are important in many fields, including catalysis, imaging, and drug delivery, mainly due to the versatility of surface functionalization that can bestow a huge variety of chemical and physical properties. With most applications requiring precise control over this surface modification, characterization of surface composition and reactivity have become of extreme importance. We present a novel approach to track silica surface modification and quantify functional group coverage using only solution NMR. We test the method using different types of silica nanoparticles and surface modifications, to show that after dissolving the silica matrix, the 1H NMR spectra can be resolved for every single component of the mixture. By using an internal standard, we are able to quantify the density of ligands and follow their sequential modification. Our work presents a fast, accurate, and straightforward method for surface characterization of silica nanostructures, using widely available NMR spectroscopy and small amounts of sample.
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Affiliation(s)
- Carina I C Crucho
- CQFM, Centro de Química-Física Molecular, and IN, Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa , Lisboa, Portugal
| | - Carlos Baleizão
- CQFM, Centro de Química-Física Molecular, and IN, Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa , Lisboa, Portugal
| | - José Paulo S Farinha
- CQFM, Centro de Química-Física Molecular, and IN, Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa , Lisboa, Portugal
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33
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Liang J, Wang L, Bao J, He L. SiO 2 - g -PS/fluoroalkylsilane composites for superhydrophobic and highly oleophobic coatings. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.07.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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34
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Farghaly AA, Collinson MM. Mesoporous Hybrid Polypyrrole-Silica Nanocomposite Films with a Strata-Like Structure. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:5925-5936. [PMID: 27245273 DOI: 10.1021/acs.langmuir.6b00872] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Using a single-potential-step coelectrodeposition route, Ppy-SiO2 nanocomposite films characterized by a multimodal porous structure were cathodically deposited from ethanolic solutions on oxidizable and nonoxidizable substrates for the first time. The materials produced have an interesting and unique strata-like pore structure along their depth. With the exception of a silica-rich inner region, the nanocomposite films are homogeneous in composition. Because the region closest to the electrode surface is silica-rich, the fabrication of Ppy-SiO2 and Ppy free-standing films become possible using a multistep etching strategy. Such films can be captured on a variety of different supports depending on the application, and they maintain their conductivity when interfaced with an electrode surface. These mesoporous composite films form through a unique mechanism that involves the production of two catalysts, OH(-) and NO(+). Through the process of understanding the reaction mechanism, we highlighted the effect of two simultaneous competing redox reactions occurring at the electrode interface on the morphology of the electrodeposited Ppy nanocomposite films and how solvent can influence the Ppy electropolymerization reaction mechanism and hence control the morphology of the final material. In an ethanolic solvent system, the pyrrole monomers undergo a step-growth polymerization, and particulate-like nanostructured films were obtained even upon changing the monomer or acid concentration. In an aqueous-based system, nanowire-like structures were produced, which is consistent with a chain-growth mechanism. Such materials are promising candidates for a wide range of applications including electrochemical sensing, energy storage, and catalysis.
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Affiliation(s)
- Ahmed A Farghaly
- Department of Chemistry, Virginia Commonwealth University , Richmond, Virginia 23284-2006, United States
| | - Maryanne M Collinson
- Department of Chemistry, Virginia Commonwealth University , Richmond, Virginia 23284-2006, United States
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35
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36
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Ulrich S, Hirsch C, Diener L, Wick P, Rossi RM, Bannwarth MB, Boesel LF. Preparation of ellipsoid-shaped supraparticles with modular compositions and investigation of shape-dependent cell-uptake. RSC Adv 2016. [DOI: 10.1039/c6ra19861a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hybrid ellipsoid-shaped supraparticles consisting of different nanomaterials are fabricated and the influence of the supraparticle shape on cell-uptake is investigated.
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Affiliation(s)
- S. Ulrich
- Empa
- Swiss Federal Laboratories for Materials Science and Technology. Laboratory for Protection and Physiology. Lerchenfeldstrasse 5
- CH-9014 St. Gallen
- Switzerland
| | - C. Hirsch
- Empa
- Swiss Federal Laboratories for Materials Science and Technology. Particle-Biology Interactions Laboratory. Lerchenfeldstrasse 5
- CH-9014 St. Gallen
- Switzerland
| | - L. Diener
- Empa
- Swiss Federal Laboratories for Materials Science and Technology. Particle-Biology Interactions Laboratory. Lerchenfeldstrasse 5
- CH-9014 St. Gallen
- Switzerland
| | - P. Wick
- Empa
- Swiss Federal Laboratories for Materials Science and Technology. Particle-Biology Interactions Laboratory. Lerchenfeldstrasse 5
- CH-9014 St. Gallen
- Switzerland
| | - R. M. Rossi
- Empa
- Swiss Federal Laboratories for Materials Science and Technology. Laboratory for Protection and Physiology. Lerchenfeldstrasse 5
- CH-9014 St. Gallen
- Switzerland
| | - M. B. Bannwarth
- Empa
- Swiss Federal Laboratories for Materials Science and Technology. Laboratory for Protection and Physiology. Lerchenfeldstrasse 5
- CH-9014 St. Gallen
- Switzerland
| | - L. F. Boesel
- Empa
- Swiss Federal Laboratories for Materials Science and Technology. Laboratory for Protection and Physiology. Lerchenfeldstrasse 5
- CH-9014 St. Gallen
- Switzerland
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37
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Eckardt O, Pietsch C, Zumann O, von der Lühe M, Brauer DS, Schacher FH. Well-Defined SiO2
@P(EtOx-stat
-EI) Core-Shell Hybrid Nanoparticles via Sol-Gel Processes. Macromol Rapid Commun 2015; 37:337-42. [DOI: 10.1002/marc.201500467] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 10/16/2015] [Indexed: 10/22/2022]
Affiliation(s)
- Oliver Eckardt
- Institute of Organic and Macromolecular Chemistry; Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Christian Pietsch
- Institute of Organic and Macromolecular Chemistry; Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Oliver Zumann
- Institute of Organic and Macromolecular Chemistry; Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Moritz von der Lühe
- Institute of Organic and Macromolecular Chemistry; Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Delia S. Brauer
- Otto Schott Institute of Materials Research; Friedrich Schiller University Jena; Fraunhoferstr. 6 07743 Jena Germany
| | - Felix H. Schacher
- Institute of Organic and Macromolecular Chemistry; Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
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38
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Schoth A, Adurahim ES, Bahattab MA, Landfester K, Muñoz-Espí R. Waterborne Polymer/Silica Hybrid Nanoparticles and Their Structure in Coatings. MACROMOL REACT ENG 2015. [DOI: 10.1002/mren.201500029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Alexander Schoth
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Emad S. Adurahim
- Petrochemical Technology Center; King Abdulaziz City for Science Technology; Riyadh Saudi Arabia 11442
| | - Mohammed A. Bahattab
- Petrochemical Technology Center; King Abdulaziz City for Science Technology; Riyadh Saudi Arabia 11442
| | | | - Rafael Muñoz-Espí
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
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39
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Silicone-containing aqueous polymer dispersions with hybrid particle structure. Adv Colloid Interface Sci 2015; 223:1-39. [PMID: 26094081 DOI: 10.1016/j.cis.2015.04.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 04/08/2015] [Accepted: 04/08/2015] [Indexed: 01/20/2023]
Abstract
In this paper the synthesis, characterization and application of silicone-containing aqueous polymer dispersions (APD) with hybrid particle structure are reviewed based on available literature data. Advantages of synthesis of dispersions with hybrid particle structure over blending of individual dispersions are pointed out. Three main processes leading to silicone-containing hybrid APD are identified and described in detail: (1) emulsion polymerization of organic unsaturated monomers in aqueous dispersions of silicone polymers or copolymers, (2) emulsion copolymerization of unsaturated organic monomers with alkoxysilanes or polysiloxanes with unsaturated functionality and (3) emulsion polymerization of alkoxysilanes (in particular with unsaturated functionality) and/or cyclic siloxanes in organic polymer dispersions. The effect of various factors on the properties of such hybrid APD and films as well as on hybrid particles composition and morphology is presented. It is shown that core-shell morphology where silicones constitute either the core or the shell is predominant in hybrid particles. Main applications of silicone-containing hybrid APD and related hybrid particles are reviewed including (1) coatings which show specific surface properties such as enhanced water repellency or antisoiling or antigraffiti properties due to migration of silicone to the surface, and (2) impact modifiers for thermoplastics and thermosets. Other processes in which silicone-containing particles with hybrid structure can be obtained (miniemulsion polymerization, polymerization in non-aqueous media, hybridization of organic polymer and polysiloxane, emulsion polymerization of silicone monomers in silicone polymer dispersions and physical methods) are also discussed. Prospects for further developments in the area of silicone-containing hybrid APD and related hybrid particles are presented.
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40
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Preparation of vinyl silica-based organic/inorganic nanocomposites and superhydrophobic polyester surfaces from it. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-015-3624-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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41
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Nikje MMA, Akbar R, Ghavidel R, Vakili M. Preparation and Characterization of Magnetic Rigid Polyurethane Foam Reinforced with Dipodal Silane Iron Oxide Nanoparticles Fe3O4@APTS/GPTS. CELLULAR POLYMERS 2015. [DOI: 10.1177/026248931503400302] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this study, a new class of magnetic rigid polyurethane foams (PUFs) has been fabricated by one-shot process. Dipodal silane-coated magnetic nanoparticles (DScMNPs) was used as the magnetic nanoparticle and synthesized by functionalization of iron oxide nanoparticles by the prepared dipodal silane based on 3-aminopropyltriethoxysilane (APTS) and γ-glycidoxypropyltrimetoxysilane (GPTS) via sol-gel method. The synthesized DScMNPs were used up to 8.0% in the rigid polyurethane foam formulation and prepared foams were characterized. The chemical structure of DScMNPs was confirmed by proton nuclear magnetic resonance spectroscopy (1H NMR), Fourier transform infrared spectroscopy (FTIR) and transmission electron microscopy (TEM), respectively. Morphological, thermal and mechanical properties of the PU nanocomposites were studied by scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and dynamic mechanical analysis (DMA). Vibrating sample magnetometery (VSM) was also showed that the synthesized PU nanocomposites are super paramagnetic.
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Affiliation(s)
- Mir Mohammad Alavi Nikje
- Faculty of Science, Department of Chemistry, Imam Khomeini International University, Qazvin, Iran
| | - Raheleh Akbar
- Faculty of Science, Department of Chemistry, Imam Khomeini International University, Qazvin, Iran
| | - Razieh Ghavidel
- Faculty of Science, Department of Chemistry, Imam Khomeini International University, Qazvin, Iran
| | - Maryam Vakili
- Faculty of Science, Department of Chemistry, Imam Khomeini International University, Qazvin, Iran
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42
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Yu F, Xu X, Lin N, Liu XY. Structural engineering of waterborne polyurethane for high performance waterproof coatings. RSC Adv 2015. [DOI: 10.1039/c5ra12480h] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel waterborne polyurethane containing fluorine and siloxane (FSPU) for excellent thermal performance, waterproof and mechanical properties.
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Affiliation(s)
- Fangfang Yu
- Research Institute for Biomimetics and Soft Matter
- Xiamen University
- Xiamen
- China
| | - Xiangyu Xu
- Research Institute for Biomimetics and Soft Matter
- Xiamen University
- Xiamen
- China
| | - Naibo Lin
- Research Institute for Biomimetics and Soft Matter
- Xiamen University
- Xiamen
- China
| | - Xiang Yang Liu
- Department of Physics
- National University of Singapore
- Singapore 117542
- Singapore
- Research Institute for Biomimetics and Soft Matter
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43
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Mehlhase S, Schäfer CG, Morsbach J, Schmidt L, Klein R, Frey H, Gallei M. Vinylphenylglycidyl ether-based colloidal architectures: high-functionality crosslinking reagents, hybrid raspberry-type particles and smart hydrophobic surfaces. RSC Adv 2014. [DOI: 10.1039/c4ra08382b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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