51
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Alqarni SA, Hussein MA, Ganash AA, Khan A. Composite Material–Based Conducting Polymers for Electrochemical Sensor Applications: a Mini Review. BIONANOSCIENCE 2020. [DOI: 10.1007/s12668-019-00708-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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52
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Chen H, Noirbent G, Sun K, Brunel D, Gigmes D, Morlet-Savary F, Zhang Y, Liu S, Xiao P, Dumur F, Lalevée J. Photoinitiators derived from natural product scaffolds: monochalcones in three-component photoinitiating systems and their applications in 3D printing. Polym Chem 2020. [DOI: 10.1039/d0py00568a] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Design of new photoinitiators based on natural Chalcone scaffold.
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Affiliation(s)
- Hong Chen
- Institut de Science des Matériaux de Mulhouse
- IS2M-UMR CNRS 7361
- UHA
- Cedex 68057 Mulhouse
- France
| | | | - Ke Sun
- Institut de Science des Matériaux de Mulhouse
- IS2M-UMR CNRS 7361
- UHA
- Cedex 68057 Mulhouse
- France
| | | | | | - Fabrice Morlet-Savary
- Institut de Science des Matériaux de Mulhouse
- IS2M-UMR CNRS 7361
- UHA
- Cedex 68057 Mulhouse
- France
| | - Yijun Zhang
- Institut de Science des Matériaux de Mulhouse
- IS2M-UMR CNRS 7361
- UHA
- Cedex 68057 Mulhouse
- France
| | - Shaohui Liu
- Institut de Science des Matériaux de Mulhouse
- IS2M-UMR CNRS 7361
- UHA
- Cedex 68057 Mulhouse
- France
| | - Pu Xiao
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | | | - Jacques Lalevée
- Institut de Science des Matériaux de Mulhouse
- IS2M-UMR CNRS 7361
- UHA
- Cedex 68057 Mulhouse
- France
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53
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Song Y, Wang Y, Xu L, Wang M. Fabrication and Characterization of Electrospun Aligned Porous PAN/Graphene Composite Nanofibers. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1782. [PMID: 31847494 PMCID: PMC6955752 DOI: 10.3390/nano9121782] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/10/2019] [Accepted: 12/13/2019] [Indexed: 12/25/2022]
Abstract
A modified parallel electrode method (MPEM), conducted by placing a positively charged ring between the needle and the paralleled electrode collector, was presented to fabricate aligned polyacrylonitrile/graphene (PAN/Gr) composite nanofibers (CNFs) with nanopores in an electrospinning progress. Two kinds of solvents and one kind of nanoparticle were used to generate pores on composite nanofibers. The spinning parameters, such as the concentration of solute and solvent, spinning voltage and spinning distance were discussed, and the optimal parameters were determined. Characterizations of the aligned CNFs with nanopores were investigated by scanning electron microscopy (SEM), fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) analysis, transmission electron microscopy (TEM), high-resistance meter, and other methods. The results showed that graphene (Gr) nanoparticles were successfully introduced into aligned CNFs with nanopores and almost aligned along the axis of the CNFs. The MPEM method could make hydrophobic materials more hydrophobic, and improve the alignment degree and conductive properties of electrospun-aligned CNFs with nanopores. Moreover, the carbonized CNFs with nanopores, used as an electrode material, had a smaller charge-transfer resistance, suggesting potential application in electrochemical areas and electron devices.
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Affiliation(s)
- Yanhua Song
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China; (Y.S.); (Y.W.)
| | - Yi Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China; (Y.S.); (Y.W.)
| | - Lan Xu
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China; (Y.S.); (Y.W.)
| | - Mingdi Wang
- School of Mechanical and Electric Engineering, Soochow University, Suzhou 215123, China;
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54
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Jiramitmongkon K, Chotsuwan C, Asawapirom U, Hirunsit P. Cyclopentadithiophene and Diketo-pyrrolo-pyrrole fused rigid copolymer for high optical contrast electrochromic polymer. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1989-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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55
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de Melo BAG, França CG, Dávila JL, Batista NA, Caliari-Oliveira C, d'Ávila MA, Luzo ÂCM, Lana JFSD, Santana MHA. Hyaluronic acid and fibrin from L-PRP form semi-IPNs with tunable properties suitable for use in regenerative medicine. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 109:110547. [PMID: 32228935 DOI: 10.1016/j.msec.2019.110547] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 12/06/2019] [Accepted: 12/11/2019] [Indexed: 11/16/2022]
Abstract
Autologous leukocyte- and platelet-rich plasma (L-PRP) combined with hyaluronic acid (HA) has been widely used in local applications for cartilage and bone regeneration. The association between L-PRP and HA confers structural and rheological changes that differ among individual biomaterials but has not been investigated. Therefore, the standardization and characterization of L-PRP-HA are important to consider when comparing performance results to improve future clinical applications. To this end, we prepared semi-interpenetrating polymer networks (semi-IPNs) of L-PRP and HA and characterized their polymerization kinetics, morphology, swelling ratio, stability and rheological behavior, which we found to be tunable according to the HA molar mass (MM). Mesenchymal stem cells derived from human adipose tissue (h-AdMSCs) seeded in the semi-IPNs had superior viability and chondrogenesis and osteogenesis capabilities compared to the viability and capabilities of fibrin. We have demonstrated that the preparation of the semi-IPNs under controlled mixing ensured the formation of cell-friendly hydrogels rich in soluble factors and with tunable properties according to the HA MM, rendering them suitable for clinical applications in regenerative medicine.
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Affiliation(s)
- Bruna Alice Gomes de Melo
- Department of Engineering of Materials and Bioprocesses, School of Chemical Engineering, University of Campinas, 13083-852 Campinas, SP, Brazil
| | - Carla Giometti França
- Department of Engineering of Materials and Bioprocesses, School of Chemical Engineering, University of Campinas, 13083-852 Campinas, SP, Brazil
| | - José Luis Dávila
- Department of Manufacturing and Materials Engineering, School of Mechanical Engineering, University of Campinas, 13083-860 Campinas, SP, Brazil
| | - Nilza Alzira Batista
- Orthopaedic Biomaterials Laboratory, Faculty of Medical Sciences, University of Campinas, 13083-887 Campinas, SP, Brazil
| | | | - Marcos Akira d'Ávila
- Department of Manufacturing and Materials Engineering, School of Mechanical Engineering, University of Campinas, 13083-860 Campinas, SP, Brazil
| | | | | | - Maria Helena Andrade Santana
- Department of Engineering of Materials and Bioprocesses, School of Chemical Engineering, University of Campinas, 13083-852 Campinas, SP, Brazil.
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56
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Shelar-Lohar G, Joshi S. Comparative study of uranium and thorium metal ion adsorption by gum ghatti grafted poly(acrylamide) copolymer composites. RSC Adv 2019; 9:41326-41335. [PMID: 35540053 PMCID: PMC9076367 DOI: 10.1039/c9ra08212c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 11/16/2019] [Indexed: 12/02/2022] Open
Abstract
Uranium and thorium ions were selectively removed from aqueous solution using synthesized gum ghatti grafted poly(acrylamide) gum-g-poly(AAm) composite. A gamma radiation induced free radical copolymerization technique was used to synthesize the copolymer composite of gum-g-poly(AAm). Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TG), X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM) were used to characterize the graft copolymer gum-g-poly(AAm). The adsorption of uranium ions and thorium ions using the gum-g-poly(AAm) copolymer composites has been investigated in batch mode. The adsorptive characteristics were investigated by varying the pH, concentration and time for both ions. The adsorption method depends on the pH of each metal ion, and the highest adsorption percentage was achieved at pH 6.0. The adsorption statistics were justified by isotherm, kinetic and thermodynamic models. The Langmuir adsorption model was revealed to be the best fitted monolayer arrangement, with a maximum adsorption capacity of 367.65 mg g-1 for the uranium ions and 125.95 mg g-1 for the thorium ions. The adsorption of metal ions occurred by the ion exchange process, which was specified through the rate controlling step with a best-fitted pseudo-second order kinetic rate model. Thermodynamic analysis shows that the ΔH and ΔS values for the uranium ions and thorium ions were positive. The negative ΔG values decreased with an increase in temperature, suggesting that the metal ion adsorption process was endothermic and spontaneous in behaviour.
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Affiliation(s)
- Gauri Shelar-Lohar
- Department of Chemistry, Savitribai Phule Pune University Pune Maharashtra India
- Department of Chemistry, Fergusson College Shivajinagar Pune Maharashtra India
| | - Satyawati Joshi
- Department of Chemistry, Savitribai Phule Pune University Pune Maharashtra India
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57
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Liu G, Lu Z, Zhu X, Du X, Hu J, Chang S, Li X, Liu Y. Facile in-situ growth of Ag/TiO 2 nanoparticles on polydopamine modified bamboo with excellent mildew-proofing. Sci Rep 2019; 9:16496. [PMID: 31712585 PMCID: PMC6848128 DOI: 10.1038/s41598-019-53001-y] [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: 08/07/2019] [Accepted: 10/26/2019] [Indexed: 11/30/2022] Open
Abstract
Bamboo with the outstanding properties, such as good mechanical strength, fast growth rate and low growth cost, is considered as one of utilitarian structural nature materials. But bamboo is easy to get mildewed resulting in disfiguration and fungi corrosion. In this work, a facile method was developed to improve the mildew-proofing capability of bamboo. Mussel-inspired polydopamine (PDA) with biomimetic adhesion function and highly active functional groups was employed to immobilize highly-dispersed Ag and TiO2 nanoparticles on the surface of bamboo via an in-situ growth method. Integrating the uniform PDA coating, photocatalytic function of TiO2 nanoparticles and bactericidal role of Ag nanoparticles, the mildew-proofing capability of bamboo is enhanced significantly. The results show a non-covalent interaction is more likely to account for the binding mechanism of PDA to bamboo. And the prepared bamboo samples show good photocatalytic performance and have excellent resistance leachability. Meanwhile, the mildew-proofing property of prepared bamboo sample was greatly improved.
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Affiliation(s)
- Gonggang Liu
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Materials Science and Engineering, Central South University of Forestry and Technology, Shaoshan South Road, No. 498, Changsha, 410004, China
| | - Zhou Lu
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Materials Science and Engineering, Central South University of Forestry and Technology, Shaoshan South Road, No. 498, Changsha, 410004, China
| | - Xiu Zhu
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Materials Science and Engineering, Central South University of Forestry and Technology, Shaoshan South Road, No. 498, Changsha, 410004, China
| | - Xiaoqing Du
- School of Materials Science and Energy Engineering, Foshan University, Foshan, 528300, China
| | - Jinbo Hu
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Materials Science and Engineering, Central South University of Forestry and Technology, Shaoshan South Road, No. 498, Changsha, 410004, China.
| | - Shanshan Chang
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Materials Science and Engineering, Central South University of Forestry and Technology, Shaoshan South Road, No. 498, Changsha, 410004, China.
| | - Xianjun Li
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Materials Science and Engineering, Central South University of Forestry and Technology, Shaoshan South Road, No. 498, Changsha, 410004, China
| | - Yuan Liu
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Materials Science and Engineering, Central South University of Forestry and Technology, Shaoshan South Road, No. 498, Changsha, 410004, China
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58
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Yan L, Zhu G, Guan J, Han G. One‐Pot Synthesis of Magnetic Nanoparticles Encapsulated by Carbon Nanotube for Selective Aromatic Compound Adsorption. ChemistrySelect 2019. [DOI: 10.1002/slct.201902910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Li Yan
- College of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Geng Zhu
- College of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Jian‐Ning Guan
- College of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Guo‐Zhi Han
- College of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
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59
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Kumar BYS, Isloor AM, Kumar GCM, Inamuddin, Asiri AM. Nanohydroxyapatite Reinforced Chitosan Composite Hydrogel with Tunable Mechanical and Biological Properties for Cartilage Regeneration. Sci Rep 2019; 9:15957. [PMID: 31685836 PMCID: PMC6828803 DOI: 10.1038/s41598-019-52042-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 10/11/2019] [Indexed: 01/09/2023] Open
Abstract
With the continuous quest of developing hydrogel for cartilage regeneration with superior mechanobiological properties are still becoming a challenge. Chitosan (CS) hydrogels are the promising implant materials due to an analogous character of the soft tissue; however, their low mechanical strength and durability together with its lack of integrity with surrounding tissues hinder the load-bearing application. This can be solved by developing a composite chitosan hydrogel reinforced with Hydroxyapatite Nanorods (HANr). The objective of this work is to develop and characterize (physically, chemically, mechanically and biologically) the composite hydrogels loaded with different concentration of hydroxyapatite nanorod. The concentration of hydroxyapatite in the composite hydrogel was optimized and it was found that, reinforcement modifies the hydrogel network by promoting the secondary crosslinking. The compression strength could reach 1.62 ± 0.02 MPa with a significant deformation of 32% and exhibits time-dependent, rapid self-recoverable and fatigue resistant behavior based on the cyclic loading-unloading compression test. The storage modulus value can reach nearly 10 kPa which is needed for the proposed application. Besides, composite hydrogels show an excellent antimicrobial activity against Escherichia coli, Staphylococcus aureus bacteria's and Candida albicans fungi and their cytocompatibility towards L929 mouse fibroblasts provide a potential pathway to developing a composite hydrogel for cartilage regeneration.
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Affiliation(s)
- B Y Santosh Kumar
- Polymer Composites Laboratory, Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore, 575 025, India
| | - Arun M Isloor
- Membrane Technology Laboratory, Department of Chemistry, National Institute of Technology Karnataka, Surathkal, Mangalore, 575 025, India.
| | - G C Mohan Kumar
- Polymer Composites Laboratory, Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore, 575 025, India.
| | - Inamuddin
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
- Centre of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
- Advanced Functional Materials Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, 202 002, India.
| | - Abdullah M Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
- Centre of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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60
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Kumar Sharma R, Agrawal I, Dai L, Doyle PS, Garaj S. Complex DNA knots detected with a nanopore sensor. Nat Commun 2019; 10:4473. [PMID: 31578328 PMCID: PMC6775256 DOI: 10.1038/s41467-019-12358-4] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 08/27/2019] [Indexed: 01/15/2023] Open
Abstract
Equilibrium knots are common in biological polymers-their prevalence, size distribution, structure, and dynamics have been extensively studied, with implications to fundamental biological processes and DNA sequencing technologies. Nanopore microscopy is a high-throughput single-molecule technique capable of detecting the shape of biopolymers, including DNA knots. Here we demonstrate nanopore sensors that map the equilibrium structure of DNA knots, without spurious knot tightening and sliding. We show the occurrence of both tight and loose knots, reconciling previous contradictory results from different experimental techniques. We evidence the occurrence of two quantitatively different modes of knot translocation through the nanopores, involving very different tension forces. With large statistics, we explore the complex knots and, for the first time, reveal the existence of rare composite knots. We use parametrized complexity, in concert with simulations, to test the theoretical assumptions of the models, further asserting the relevance of nanopores in future investigation of knots.
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Affiliation(s)
- Rajesh Kumar Sharma
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583, Singapore
- Singapore-MIT Alliance for Research and Technology Centre, 1 CREATE Way, Singapore, 138602, Singapore
- Centre for Advanced 2D Materials, National University of Singapore, 6 Science Drive 2, Singapore, 117546, Singapore
| | - Ishita Agrawal
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583, Singapore
| | - Liang Dai
- Department of Physics, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Patrick S Doyle
- Singapore-MIT Alliance for Research and Technology Centre, 1 CREATE Way, Singapore, 138602, Singapore.
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA.
| | - Slaven Garaj
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583, Singapore.
- Centre for Advanced 2D Materials, National University of Singapore, 6 Science Drive 2, Singapore, 117546, Singapore.
- Department of Physics, National University of Singapore, Singapore, Science Drive 3, Singapore, 117551, Singapore.
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61
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Aijaz MO, Karim MR, Alharbi HF, Alharthi NH. Novel optimised highly aligned electrospun PEI-PAN nanofibre mats with excellent wettability. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121665] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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62
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Zou WS, Kong WL, Zhao QC, Zhang J, Zhao X, Zhao D, Wang YQ. A composite consisting of bromine-doped carbon dots and ferric ions as a fluorescent probe for determination and intracellular imaging of phosphate. Mikrochim Acta 2019; 186:576. [DOI: 10.1007/s00604-019-3700-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 07/13/2019] [Indexed: 01/10/2023]
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63
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Rodríguez‐Alba E, Huerta L, Ortega A, Burillo G. Surface Modification of Polypropylene with Primary Amines by Acrylamide Radiation Grafting and Hofmann's Transposition Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201901473] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Efraín Rodríguez‐Alba
- Instituto de Ciencias NuclearesUniversidad Nacional Autónoma de MéxicoCircuito Exterior Ciudad Universitaria, C.P. 04510 Ciudad de México México
| | - Lázaro Huerta
- Instituto de Investigaciones en MaterialesUniversidad Nacional Autónoma de MéxicoCircuito Exterior Ciudad Universitaria, C.P. 04510 Ciudad de México México
| | - Alejandra Ortega
- Instituto de Ciencias NuclearesUniversidad Nacional Autónoma de MéxicoCircuito Exterior Ciudad Universitaria, C.P. 04510 Ciudad de México México
| | - Guillermina Burillo
- Instituto de Ciencias NuclearesUniversidad Nacional Autónoma de MéxicoCircuito Exterior Ciudad Universitaria, C.P. 04510 Ciudad de México México
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64
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Shoukat H, Pervaiz F, Noreen S, Nawaz M, Qaiser R, Anwar M. Fabrication and evaluation studies of novel polyvinylpyrrolidone and 2-acrylamido-2-methylpropane sulphonic acid-based crosslinked matrices for controlled release of acyclovir. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02837-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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65
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Langmuir film formation of amphiphilic hybrid block copolymers based on poly(ethylene glycol) and poly(methacrylo polyhedral oligomeric silsesquioxane). Colloid Polym Sci 2019. [DOI: 10.1007/s00396-019-04517-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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66
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Erramilli S, Genzer J. Influence of surface topography attributes on settlement and adhesion of natural and synthetic species. SOFT MATTER 2019; 15:4045-4067. [PMID: 31066434 DOI: 10.1039/c9sm00527g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Surface topographies of various sizes, shapes, and spatial organization abound in nature. They endow properties such as super-hydrophobicity, reversible adhesion, anti-fouling, self-cleaning, anti-glare, and anti-bacterial, just to mention a few. Researchers have long attempted to replicate these structures to create artificial surfaces with the functionalities found in nature. In this review, we decompose the attributes of surface topographies into their constituents, namely feature dimensions, geometry, and stiffness, and examine how they contribute (individually or collectively) to settlement and adhesion of natural organisms and synthetic particles on the surface. The size of features that comprise the topography affects the contact area between the particle and surface as well as its adhesion and contributes to the observed adsorptive properties of the surface. The geometry of surface perturbations can also affect the contact area and gives rise to anisotropic particle settlement. Surface topography also affects the local stiffness of the surface and governs the adhesion strength on the surface. Overall, systematically studying attributes of surface topography and elucidating how each of them affects adhesion and settlement of particles will facilitate the design of topographically-corrugated surfaces with desired adsorption characteristics.
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Affiliation(s)
- Shreya Erramilli
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, NC, USA
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67
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Chae H, Kim I. Enhancement in permeability of piperazine‐based thin‐film composite membrane via surface roughening using a highly organic‐soluble additive. J Appl Polym Sci 2019. [DOI: 10.1002/app.47913] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hee‐Ro Chae
- Center for Membrane, Advanced Green Chemical Materials DivisionKorea Research Institute of Chemical Technology Daejeon 34114 Republic of Korea
| | - In‐Chul Kim
- Center for Membrane, Advanced Green Chemical Materials DivisionKorea Research Institute of Chemical Technology Daejeon 34114 Republic of Korea
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68
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Ayub AD, Chiu HI, Mat Yusuf SNA, Abd Kadir E, Ngalim SH, Lim V. Biocompatible disulphide cross-linked sodium alginate derivative nanoparticles for oral colon-targeted drug delivery. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:353-369. [PMID: 30691309 DOI: 10.1080/21691401.2018.1557672] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The application of layer-by-layer (LbL) approach on nanoparticle surface coating improves the colon-specific drug delivery of insoluble drugs. Here, we aimed to formulate a self-assembled cysteamine-based disulphide cross-linked sodium alginate with LbL self-assembly to improve the delivery of paclitaxel (PCX) to colonic cancer cells. Cysteamine was conjugated to the backbone of oxidized SA to form a core of self-assembled disulphide cross-linked nanospheres. P3DL was selected for PCX loading and fabricated LbL with poly(allylamine hydrochloride) (PAH) and poly(4-styrenesulfonic acid-co-maleic acid) sodium salt (PSSCMA) resulting from characterization and drug release studies. P3DL-fabricated PCX-loaded nanospheres (P3DL/PAH/PSSCMA) exhibited an encapsulation efficiency of 77.1% with cumulative drug release of 45.1%. Dynamic light scattering analysis was reported at 173.6 ± 2.5 nm with polydispersity index of 0.394 ± 0.105 (zeta potential= -58.5 mV). P3DL/PAH/PSSCMA demonstrated a pH-dependent swelling transition; from pH 1 to 7 (102.2% increase). The size increased by 33.0% in reduction response study after incubating with 10 mM glutathione (day 7). HT-29 cells showed high viabilities (86.7%) after treatment with the fabricated nanospheres at 0.8 µg/mL. Cellular internalization was successful with more than 70.0% nanospheres detected in HT-29 cells. Therefore, this fabricated nanospheres may be considered as potential nanocarriers for colon cancer-targeted chemotherapeutic drug delivery.
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Affiliation(s)
- Asila Dinie Ayub
- a Integrative Medicine Cluster, Advanced Medical and Dental Institute , Universiti Sains Malaysia , Penang , Malaysia
| | - Hock Ing Chiu
- a Integrative Medicine Cluster, Advanced Medical and Dental Institute , Universiti Sains Malaysia , Penang , Malaysia
| | - Siti Nur Aishah Mat Yusuf
- a Integrative Medicine Cluster, Advanced Medical and Dental Institute , Universiti Sains Malaysia , Penang , Malaysia.,b Department of Chemical Engineering Technology, Faculty of Engineering Technology , Universiti Malaysia Perlis , Perlis , Malaysia
| | - Erazuliana Abd Kadir
- a Integrative Medicine Cluster, Advanced Medical and Dental Institute , Universiti Sains Malaysia , Penang , Malaysia
| | - Siti Hawa Ngalim
- c Regenerative Medicine Cluster , Advanced Medical and Dental Institute, Universiti Sains Malaysia , Penang , Malaysia
| | - Vuanghao Lim
- a Integrative Medicine Cluster, Advanced Medical and Dental Institute , Universiti Sains Malaysia , Penang , Malaysia
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Hsieh YY, Zhang Y, Zhang L, Fang Y, Kanakaraaj SN, Bahk JH, Shanov V. High thermoelectric power-factor composites based on flexible three-dimensional graphene and polyaniline. NANOSCALE 2019; 11:6552-6560. [PMID: 30916066 DOI: 10.1039/c8nr10537e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hybrid thermoelectric (TE) nanocomposites containing conducting polymers and nanocarbon materials have been extensively studied in recent years due to their unique advantages over single-phase organic/inorganic TE materials. Nanocarbon materials have been developed as conductive nanofillers to improve the electrical conductivity of the polymer matrix, and to create a strong π-π interfacial interaction with the matrix to enhance the TE performance. However, previous designs of the hybrid TE nanocomposites tend to cause aggregation of nanocarbon materials, which is detrimental to the TE performance. Also, they are limited in their fabrication to thin film technologies with submicron thicknesses, which prevents these composites from being used in practical TE devices. Herein, we present the synthesis and thermoelectric properties of free-standing, three-dimensional graphene (3DG)-polyaniline (PANI) composites with greater than 100 μm thicknesses for high performance flexible p-type thermoelectrics. Our 3DG matrix has been synthesized by Chemical Vapor Deposition (CVD) with particulate nickel catalysts, and used as a scaffold for the polymer composites. This material provides an excellent electrical conductivity and a reasonable Seebeck coefficient along with very good mechanical integrity preserved when bending, thus making it a promising candidate for flexible TE. PANI polymer was electrochemically grown on the 3DG scaffold as a filler to further tune the TE properties. The proposed 3DG-PANI composites showed a maximum power factor of 81.9 μW m-1 K-2 with a PANI loading of 80 wt% and highly reproducible TE performance after repeated mechanical bending tests. This novel material provides a different strategy for simple and scalable fabrication of flexible thermoelectrics with high performance TE energy harvesting and improved mechanical properties.
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Affiliation(s)
- Yu-Yun Hsieh
- Department of Mechanical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45221-0072, USA.
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70
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Zheng Z, Zhang K, Wu B, Yang H, Wang M, Dong T, Zhang J, He Y. Green electrospun nanocuprous oxide–poly(ethylene oxide)–silk fibroin composite nanofibrous scaffolds for antibacterial dressings. J Appl Polym Sci 2019. [DOI: 10.1002/app.47730] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zexin Zheng
- College of Materials and Textile EngineeringJiaxing University Jiaxing 314001 China
| | - Kuihua Zhang
- College of Materials and Textile EngineeringJiaxing University Jiaxing 314001 China
| | - Bo Wu
- College of Materials and Textile EngineeringJiaxing University Jiaxing 314001 China
| | - Haoyi Yang
- College of Materials and Textile EngineeringJiaxing University Jiaxing 314001 China
| | - Mengqi Wang
- College of Materials and Textile EngineeringJiaxing University Jiaxing 314001 China
| | - Tianhong Dong
- College of Materials and Textile EngineeringJiaxing University Jiaxing 314001 China
| | - Jiaying Zhang
- College of Materials and Textile EngineeringJiaxing University Jiaxing 314001 China
| | - Ying He
- College of Materials and Textile EngineeringJiaxing University Jiaxing 314001 China
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71
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Lima EMB, Lima AM, Minguita APS, Rojas dos Santos NR, Pereira ICS, Neves TTM, da Costa Gonçalves LF, Moreira APD, Middea A, Neumann R, Tavares MIB, Oliveira RN. Poly(lactic acid) biocomposites with mango waste and organo-montmorillonite for packaging. J Appl Polym Sci 2019. [DOI: 10.1002/app.47512] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
| | - Aline Muniz Lima
- Brazilian Agricultural Research Corporation; EMBRAPA Food Technology; Brazil
| | | | | | | | | | | | - Ana Paula Duarte Moreira
- Materials and Metallurgy Engineering Program/COPPE; Federal University of Rio de Janeiro; Brazil
| | | | | | | | - Renata Nunes Oliveira
- Postgraduate Program of Chemical Engineering/DEQ; Federal Rural University of Rio de Janeiro; Brazil
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72
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Synthesis of polyacrylonitrile and mechanical properties of its electrospun nanofibers. E-POLYMERS 2018. [DOI: 10.1515/epoly-2018-0158] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
AbstractPolyacrylonitrile (PAN) nanofibers are very important to achieve high performance carbon nanofibers. In this work, co-polyacrylonitriles (co-PANs) with different molecular weights were synthesized by a simple free-radical polymerization. The effect of the initiator amount on the molecular weight of co-PAN was investigated. The co-PANs with different molecular weight were electrospun into aligned nanofibers by adjusting the absolute viscosity of co-PAN solution into ~1.0 Pa·s. All the co-PAN nanofibers showed smooth surfaces and homogeneous fiber diameters of ~450 nm. Tensile tests were applied to evaluate the mechanical properties of electrospun aligned co-PAN nanofibers. The results indicated that higher molecular weight led to better mechanical performance of electrospun aligned co-PAN nanofibers. When the molecular weight was 2.3×105, the highest strength of 153 MPa, strain of 0.148, and toughness of 16.0 J/g were obtained. These electrospun aligned co-PAN nanofibers could be good candidates for the preparation of high performance carbon nanofibers.
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73
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Zhou H, Song J, Ding X, Qu Z, Wang X, Mi J, Wang J. Cellular morphology evolution of chain extended poly(butylene succinate)/organic montmorillonite nanocomposite foam. J Appl Polym Sci 2018. [DOI: 10.1002/app.47107] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- H. Zhou
- School of Materials Science and Mechanical EngineeringBeijing Technology and Business University Beijing, 100048 People's Republic of China
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University Beijing, 100048 People's Republic of China
| | - J. Song
- School of Materials Science and Mechanical EngineeringBeijing Technology and Business University Beijing, 100048 People's Republic of China
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University Beijing, 100048 People's Republic of China
| | - X. Ding
- School of Materials Science and Mechanical EngineeringBeijing Technology and Business University Beijing, 100048 People's Republic of China
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University Beijing, 100048 People's Republic of China
| | - Z. Qu
- School of Materials Science and Mechanical EngineeringBeijing Technology and Business University Beijing, 100048 People's Republic of China
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University Beijing, 100048 People's Republic of China
| | - X. Wang
- School of Materials Science and Mechanical EngineeringBeijing Technology and Business University Beijing, 100048 People's Republic of China
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University Beijing, 100048 People's Republic of China
| | - J. Mi
- State Key Laboratory of Organic‐Inorganic CompositesBeijing University of Chemical Technology Beijing, 100029 People's Republic of China
| | - J. Wang
- Applied Chemistry DepartmentYuncheng University Yuncheng, 044000 People's Republic of China
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74
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Liu YQ, He CH, Li XX, He JH. Fabrication of Beltlike Fibers by Electrospinning. Polymers (Basel) 2018; 10:E1087. [PMID: 30961012 PMCID: PMC6403970 DOI: 10.3390/polym10101087] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/25/2018] [Accepted: 09/26/2018] [Indexed: 11/24/2022] Open
Abstract
Electrospinning is always used to fabricate one-dimensional nanofibers. Cylindrical fibers are formed during the spinning process due to the minimal-surface principle. However, when the moving jet has high rigidity, which can counteract the surface tension for a minimal surface, beltlike fibers can be obtained. Using the Hall⁻Petch effect, the rigidity of the moving jet can be greatly enhanced by adding nanoparticles. Polyethylene glycol with a nanometric crystallite size of 4 nm and ZrO₂ nanoparticles are used as additives in the experiment, a theoretical analysis is carried out, and the theoretical predictions are verified experimentally.
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Affiliation(s)
- Yan-Qing Liu
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
| | - Chun-Hui He
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
| | - Xiao-Xia Li
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
| | - Ji-Huan He
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
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75
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Bae D, Seger B, Hansen O, Vesborg PCK, Chorkendorff I. Durability Testing of Photoelectrochemical Hydrogen Production under Day/Night Light Cycled Conditions. ChemElectroChem 2018. [DOI: 10.1002/celc.201800918] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dowon Bae
- Surface Physics & Catalysis (SurfCat) Department of Physics; Technical University of Denmark Fysikvej B311; 2800 Kongens Lyngby Denmark
- Current address: Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering; Delft University of Technology
| | - Brian Seger
- Surface Physics & Catalysis (SurfCat) Department of Physics; Technical University of Denmark Fysikvej B311; 2800 Kongens Lyngby Denmark
| | - Ole Hansen
- Surface Physics & Catalysis (SurfCat) Department of Physics; Technical University of Denmark Fysikvej B311; 2800 Kongens Lyngby Denmark
- Department of Micro- and Nanotechnology; Technical University of Denmark Ørsteds Plads B344; 2800 Kongens Lyngby Denmark
| | - Peter C. K. Vesborg
- Surface Physics & Catalysis (SurfCat) Department of Physics; Technical University of Denmark Fysikvej B311; 2800 Kongens Lyngby Denmark
| | - Ib Chorkendorff
- Surface Physics & Catalysis (SurfCat) Department of Physics; Technical University of Denmark Fysikvej B311; 2800 Kongens Lyngby Denmark
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76
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Hydrogel Scaffolds: Towards Restitution of Ischemic Stroke-Injured Brain. Transl Stroke Res 2018; 10:1-18. [DOI: 10.1007/s12975-018-0655-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 05/17/2018] [Accepted: 08/19/2018] [Indexed: 12/27/2022]
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77
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Fang Y, Xu L, Wang M. High-Throughput Preparation of Silk Fibroin Nanofibers by Modified Bubble-Electrospinning. NANOMATERIALS 2018; 8:nano8070471. [PMID: 29954106 PMCID: PMC6070844 DOI: 10.3390/nano8070471] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/21/2018] [Accepted: 06/25/2018] [Indexed: 11/23/2022]
Abstract
As a kind of natural macromolecular protein molecule extracted from silk, silk fibroin (SF) has been widely used as biological materials in recent years due to its good physical and chemical properties. In this paper, a modified bubble-electrospinning (MBE) using a cone-shaped gas nozzle combined with a copper solution reservoir was applied to obtain high-throughput fabrication of SF nanofibers. In the MBE process, sodium dodecyl benzene sulfonates (SDBS) were used as the surfactant to improve the spinnability of SF solution. The rheological properties and conductivity of the electrospun SF solutions were investigated. And the effects of gas flow volume, SF solution concentration and additive amounts of SDBS on the morphology, property and production of SF nanofibers were studied. The results showed the decrease of gas flow volume could decrease the nanofiber diameter, enhance the diameter distribution, and increase the production of nanofibers. And the maximum yield could reach 3.10 g/h at the SF concentration of 10 wt % and the SDBS concentration of 0.1 wt %.
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Affiliation(s)
- Yue Fang
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
| | - Lan Xu
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
| | - Mingdi Wang
- School of Mechanical and Electric Engineering, Soochow University, 178 Ganjiang Road, Suzhou 215021, China.
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78
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Passos de Oliveira Santos R, Fernanda Rossi P, Ramos LA, Frollini E. Renewable Resources and a Recycled Polymer as Raw Materials: Mats from Electrospinning of Lignocellulosic Biomass and PET Solutions. Polymers (Basel) 2018; 10:E538. [PMID: 30966572 PMCID: PMC6415374 DOI: 10.3390/polym10050538] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 05/10/2018] [Accepted: 05/14/2018] [Indexed: 11/17/2022] Open
Abstract
Interest in the use of renewable raw materials in the preparation of materials has been growing uninterruptedly in recent decades. The aim of this strategy is to offer alternatives to the use of fossil fuel-based raw materials and to meet the demand for materials that are less detrimental to the environment after disposal. In this context, several studies have been carried out on the use of lignocellulosic biomass and its main components (cellulose, hemicelluloses, and lignin) as raw materials for polymeric materials. Lignocellulosic fibers have a high content of cellulose, but there has been a notable lack of investigations on application of the electrospinning technique for solutions prepared from raw lignocellulosic biomass, even though the presence of cellulose favors the alignment of the fiber chains during electrospinning. In this investigation, ultrathin (submicrometric) and nanoscale aligned fibers were successfully prepared via electrospinning (room temperature) of solutions prepared with different contents of lignocellulosic sisal fibers combined with recycled poly(ethylene terephthalate) (PET) using trifluoroacetic acid (TFA) as solvent. The "macro" fibers were deconstructed by the action of TFA, resulting in solutions containing their constituents, i.e., cellulose, hemicelluloses, and lignin, in addition to PET. The "macro" sisal fibers were reconstructed at the nanometer and submicrometric scale from these solutions. The SEM micrographs of the mats containing the components of sisal showed distinct fiber networks, likely due to differences in the solubility of these components in TFA and in their dielectric constants. The mechanical properties of the mats (dynamic mechanical analysis, DMA, and tensile properties) were evaluated with the samples positioned both in the direction (dir) of and in opposition (op) to the alignment of the nano and ultrathin fibers, which can be considered a novelty in the analysis of this type of material. DMA showed superior values of storage modulus (E' at 30 °C) for the mats characterized in the preferential direction of fiber alignment. For example, for mats obtained from solutions prepared from a 0.4 ratio of sisal fibers/PET, Sisal/PET0.40dir presented a high E' value of 765 MPa compared to Sisal/PET0.40op that presented an E' value of 88.4 MPa. The fiber alignment did not influence the Tg values (from tan δ peak) of electrospun mats with the same compositions, as they presented similar values for this property. The tensile properties of the electrospun mats were significantly impacted by the alignment of the fibers: e.g., Sisal/PET0.40dir presented a high tensile strength value of 15.72 MPa, and Sisal/PET0.40op presented a value of approximately 2.5 MPa. An opposite trend was observed regarding the values of elongation at break for these materials. Other properties of the mats are also discussed; such as the index of fiber alignment, average porosity, and surface contact angle. To our knowledge, this is the first time that the influence of fiber alignment on the properties of electrospun mats based on untreated lignocellulosic biomass combined with a recycled polymer, such as PET, has been evaluated. The mats obtained in this study have potential for diversified applications, such as reinforcement for polymeric matrices in nanocomposites, membranes for filtration, and support for enzymes, wherein the fiber alignment, together with other evaluated properties, can impact their effectiveness in these applications.
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Affiliation(s)
- Rachel Passos de Oliveira Santos
- Macromolecular Materials and Lignocellulosic Fibers Group, Center of Research on Science and Technology of BioResources, Institute of Chemistry of São Carlos, University of São Paulo, CP 780, 13560-970 São Carlos, SP, Brazil.
| | - Patrícia Fernanda Rossi
- Macromolecular Materials and Lignocellulosic Fibers Group, Center of Research on Science and Technology of BioResources, Institute of Chemistry of São Carlos, University of São Paulo, CP 780, 13560-970 São Carlos, SP, Brazil.
| | - Luiz Antônio Ramos
- Macromolecular Materials and Lignocellulosic Fibers Group, Center of Research on Science and Technology of BioResources, Institute of Chemistry of São Carlos, University of São Paulo, CP 780, 13560-970 São Carlos, SP, Brazil.
| | - Elisabete Frollini
- Macromolecular Materials and Lignocellulosic Fibers Group, Center of Research on Science and Technology of BioResources, Institute of Chemistry of São Carlos, University of São Paulo, CP 780, 13560-970 São Carlos, SP, Brazil.
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79
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Fenton OS, Olafson KN, Pillai PS, Mitchell MJ, Langer R. Advances in Biomaterials for Drug Delivery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1705328. [PMID: 29736981 PMCID: PMC6261797 DOI: 10.1002/adma.201705328] [Citation(s) in RCA: 464] [Impact Index Per Article: 77.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 02/12/2018] [Indexed: 04/14/2023]
Abstract
Advances in biomaterials for drug delivery are enabling significant progress in biology and medicine. Multidisciplinary collaborations between physical scientists, engineers, biologists, and clinicians generate innovative strategies and materials to treat a range of diseases. Specifically, recent advances include major breakthroughs in materials for cancer immunotherapy, autoimmune diseases, and genome editing. Here, strategies for the design and implementation of biomaterials for drug delivery are reviewed. A brief history of the biomaterials field is first established, and then commentary on RNA delivery, responsive materials development, and immunomodulation are provided. Current challenges associated with these areas as well as opportunities to address long-standing problems in biology and medicine are discussed throughout.
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Affiliation(s)
- Owen S Fenton
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Katy N Olafson
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Padmini S Pillai
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Michael J Mitchell
- Department of Bioengineering, University of Pennsylvania, School of Engineering and Applied Science, Philadelphia, PA, 19104, USA
| | - Robert Langer
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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80
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Kasemsiri P, Lorwanishpaisarn N, Pongsa U, Ando S. Reconfigurable Shape Memory and Self-Welding Properties of Epoxy Phenolic Novolac/Cashew Nut Shell Liquid Composites Reinforced with Carbon Nanotubes. Polymers (Basel) 2018; 10:E482. [PMID: 30966516 PMCID: PMC6415440 DOI: 10.3390/polym10050482] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 04/08/2018] [Accepted: 04/25/2018] [Indexed: 12/03/2022] Open
Abstract
Conventional shape memory polymers (SMPs) can memorize their permanent shapes. However, these SMPs cannot reconfigure their original shape to obtain a desirable geometry owing to permanent chemically or physically crosslinked networks. To overcome this limitation, novel SMPs that can be reconfigured via bond exchange reactions (BERs) have been developed. In this study, polymer composites consisting of epoxy phenolic novolac (EPN) and bio-based cashew nut shell liquid (CNSL) reinforced by multi-walled carbon nanotubes (CNTs) were prepared. The obtained composites exhibited shape memory and self-welding properties, and their shapes could be reconfigured via BERs. Their shape memory mechanisms were investigated using variable-temperature Fourier transform infrared spectroscopy and dynamic mechanical analysis. The EPN/CNSL composite containing 0.3 wt % CNTs showed the highest shape fixity and shape recovery ratio. Furthermore, shape memory behavior induced by irradiation of near-infrared (NIR) light was also observed. All samples showed high shape recovery ratios of nearly 100% over five cycles, and increasing the CNT content shortened the recovery time remarkably. The ability of shape reconfiguration and stress relaxation affected the photo-induced shape memory properties of reshaped samples. Additionally, the self-welding properties were also influenced by stress relaxation. The hindrance of stress relaxation caused by the CNTs resulted in a decrease in adhesive fracture energy (Gc). However, the Gc values of EPN/CNSL composites were comparable to those of epoxy vitrimers. These results revealed that the material design concepts of thermal- and photo-induced shape memory, shape reconfiguration, and self-welding were combined in the EPN/CNSL composites, which could be feasible method for advanced smart material applications.
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Affiliation(s)
- Pornnapa Kasemsiri
- Department of Chemical Engineering, Khon Kaen University, Khon Kaen 40002, Thailand.
| | | | - Uraiwan Pongsa
- Division of Industrial Engineering Technology, Rajamangala University of Technology Rattanakosin, Wang Klai Kang, Won Campus, Prachuap Khiri Khan 77110, Thailand.
| | - Shinji Ando
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-E4-5, Meguro-ku, Tokyo 152-8552, Japan.
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81
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Llorens-Gámez M, Serrano-Aroca Á. Low-Cost Advanced Hydrogels of Calcium Alginate/Carbon Nanofibers with Enhanced Water Diffusion and Compression Properties. Polymers (Basel) 2018; 10:E405. [PMID: 30966440 PMCID: PMC6415267 DOI: 10.3390/polym10040405] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 03/23/2018] [Accepted: 04/03/2018] [Indexed: 02/07/2023] Open
Abstract
A series of alginate films was synthesised with several calcium chloride cross-linker contents (from 3 to 18% w/w) with and without a very low amount (0.1% w/w) of carbon nanofibers (CNFs) in order to reduce the production costs as much as possible. The results of this study showed a very significant enhancement of liquid water diffusion and mechanical compressive modulus for high calcium chloride contents when this minuscule amount of CNFs is incorporated into calcium alginate hydrogels. These excellent results are attributed to a double cross-linking process, in which calcium cations are capable of cross-linking both alginate chains and CNFs creating a reinforced structure exhibiting ultrafast water diffusion through carbon nanochannels. Thus, these excellent results render these new alginate composites very promising for many bioengineering fields in need of low-cost advanced hydrogels with superior water diffusion and compression properties.
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Affiliation(s)
- Mar Llorens-Gámez
- Escuela Técnica Superior de Arquitectura, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain.
| | - Ángel Serrano-Aroca
- Facultad de Veterinaria y Ciencias Experimentales, Universidad Católica de Valencia San Vicente Mártir, C/Guillem de Castro 94, 46001 Valencia, Spain.
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82
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Beigmoradi R, Samimi A, Mohebbi-Kalhori D. Engineering of oriented carbon nanotubes in composite materials. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:415-435. [PMID: 29515955 PMCID: PMC5815271 DOI: 10.3762/bjnano.9.41] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Accepted: 01/09/2018] [Indexed: 06/01/2023]
Abstract
The orientation and arrangement engineering of carbon nanotubes (CNTs) in composite structures is considered a challenging issue. In this regard, two groups of in situ and ex situ techniques have been developed. In the first, the arrangement is achieved during CNT growth, while in the latter, the CNTs are initially grown in random orientation and the arrangement is then achieved during the device integration process. As the ex situ techniques are free from growth restrictions and more flexible in terms of controlling the alignment and sorting of the CNTs, they are considered by some as the preferred technique for engineering of oriented CNTs. This review focuses on recent progress in the improvement of the orientation and alignment of CNTs in composite materials. Moreover, the advantages and disadvantages of the processes are discussed as well as their future outlook.
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Affiliation(s)
- Razieh Beigmoradi
- Department of Chemical Engineering, University of Sistan and Baluchestan, University Blvd., Zahedan 98167-45845, Iran
- Innovation Center for Membrane Technology (ICMT), University of Sistan and Baluchestan, University Blvd., Zahedan 98167-45639, Iran
| | - Abdolreza Samimi
- Department of Chemical Engineering, University of Sistan and Baluchestan, University Blvd., Zahedan 98167-45845, Iran
- Innovation Center for Membrane Technology (ICMT), University of Sistan and Baluchestan, University Blvd., Zahedan 98167-45639, Iran
| | - Davod Mohebbi-Kalhori
- Department of Chemical Engineering, University of Sistan and Baluchestan, University Blvd., Zahedan 98167-45845, Iran
- Innovation Center for Membrane Technology (ICMT), University of Sistan and Baluchestan, University Blvd., Zahedan 98167-45639, Iran
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83
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Jaiswal KK, Manikandan D, Murugan R, Ramaswamy AP. Microwave-assisted rapid synthesis of Fe3O4/poly(styrene-divinylbenzene-acrylic acid) polymeric magnetic composites and investigation of their structural and magnetic properties. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2017.11.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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84
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Wu W, Li X, Ruan Z, Li Y, Xu X, Yuan Y, Lin K. Fabrication of a TiO2 trapped meso/macroporous g-C3N4 heterojunction photocatalyst and understanding its enhanced photocatalytic activity based on optical simulation analysis. Inorg Chem Front 2018. [DOI: 10.1039/c7qi00751e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The enhanced photocatalytic performance of a TiO2 nanoparticle trapped meso/macroporous g-C3N4 heterojunction photocatalyst is strongly related to its enhanced light absorption as revealed by optical simulation.
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Affiliation(s)
- Wanbao Wu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Xu Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Zhaohui Ruan
- Key Laboratory of Aerospace Thermophysics
- Ministry of Industry and Information Technology
- School of Energy Science and Engineering
- Harbin Institute of Technology
- Harbin 150001
| | - Yudong Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Xianzhu Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Yuan Yuan
- Key Laboratory of Aerospace Thermophysics
- Ministry of Industry and Information Technology
- School of Energy Science and Engineering
- Harbin Institute of Technology
- Harbin 150001
| | - Kaifeng Lin
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
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85
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Shao Z, Yu L, Xu L, Wang M. High-Throughput Fabrication of Quality Nanofibers Using a Modified Free Surface Electrospinning. NANOSCALE RESEARCH LETTERS 2017; 12:470. [PMID: 28754037 PMCID: PMC5529302 DOI: 10.1186/s11671-017-2240-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 07/18/2017] [Indexed: 05/21/2023]
Abstract
Based on bubble electrospinning (BE), a modified free surface electrospinning (MFSE) using a cone-shaped air nozzle combined with a solution reservoir made of copper tubes was presented to increase the production of quality nanofibers. In the MFSE process, sodium dodecyl benzene sulfonates (SDBS) were added in the electrospun solution to generate bubbles on a liquid surface. The effects of applied voltage and generated bubbles on the morphology and production of nanofibers were investigated experimentally and theoretically. The theoretical analysis results of the electric field were in good agreement with the experimental data and showed that the quality and production of nanofibers were improved with the increase of applied voltage, and the generated bubbles would decrease the quality and production of nanofibers.
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Affiliation(s)
- Zhongbiao Shao
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Liang Yu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Lan Xu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Ren'ai Road, Suzhou, 215123, China.
| | - Mingdi Wang
- School of Mechanical and Electric Engineering, Soochow University, 178 Ganjiang Road, Suzhou, 215021, China.
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86
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Yu L, Shao Z, Xu L, Wang M. High Throughput Preparation of Aligned Nanofibers Using an Improved Bubble-Electrospinning. Polymers (Basel) 2017; 9:E658. [PMID: 30965959 PMCID: PMC6418511 DOI: 10.3390/polym9120658] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 11/21/2017] [Accepted: 11/23/2017] [Indexed: 11/16/2022] Open
Abstract
An improved bubble-electrospinning, consisting of a cone shaped air nozzle, a copper solution reservoir connected directly to the power generator, and a high speed rotating copper wire drum as a collector, was presented successfully to obtain high throughput preparation of aligned nanofibers. The influences of drum rotation speed on morphology and properties of obtained nanofibers were explored and researched. The results showed that the alignment degree, diameter distribution, and properties of nanofibers were improved with the increase of the drum rotation speed.
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Affiliation(s)
- Liang Yu
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
| | - Zhongbiao Shao
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
| | - Lan Xu
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
| | - Mingdi Wang
- School of Mechanical and Electric Engineering, Soochow University, 178 Ganjiang Road, Suzhou 215021, China.
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87
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Xu AR, Wen S, Chen L. Dissolution performance of cellulose in MIM plus tetrabutylammonium propionate solvent. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.09.065] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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88
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Zhang Y, Park SJ. Enhanced interfacial interaction by grafting carboxylated-macromolecular chains on nanodiamond surfaces for epoxy-based thermosets. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/polb.24522] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yinhang Zhang
- Department of Chemistry; Inha University, 100 Inharo; Incheon 22212 Korea
| | - Soo-Jin Park
- Department of Chemistry; Inha University, 100 Inharo; Incheon 22212 Korea
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89
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Zhang H, Quan L, Xu L. Effects of Amino-Functionalized Carbon Nanotubes on the Crystal Structure and Thermal Properties of Polyacrylonitrile Homopolymer Microspheres. Polymers (Basel) 2017; 9:E332. [PMID: 30971009 PMCID: PMC6418557 DOI: 10.3390/polym9080332] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 07/11/2017] [Accepted: 07/13/2017] [Indexed: 11/16/2022] Open
Abstract
Amino-functionalized multi-walled carbon nanotube (amino-CNT)/polyacrylonitrile (PAN) microspheres with diameter of about 300⁻400 nm were prepared by in situ polymerization under aqueous solution. The morphology, crystal structure, and thermal properties of amino-CNTs on a PAN homopolymer were investigated by scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectra, X-ray diffraction, and differential scanning calorimetry. The results showed that the amino-CNTs had a significant influence on the morphology of microspheres, and the PAN matrix were grafted onto the surface of amino-CNTs with interfacial bonding between them. The XRD studies showed that the crystal size of amino-CNT/PAN microspheres with lower crystallinity was bigger than in the control PAN homopolymer. The analysis of thermal properties indicated that the amino-CNT/PAN microspheres with lower glass transition temperature had a lower initial temperature and velocity of evolving heat during the exothermic processing as compared with the PAN homopolymer. These results suggested that the incorporation of amino-CNTs into the PAN homopolymer matrix was beneficial for controlling the heat released during the stabilization processing.
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Affiliation(s)
- Hailong Zhang
- School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, China.
- Key Laboratory of Carbon Fiber and Functional Polymers Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Ling Quan
- School of Electric Power, North China University of Water Resources and Electric Power, Zhengzhou 450045, China.
| | - Lianghua Xu
- Key Laboratory of Carbon Fiber and Functional Polymers Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China.
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90
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Wolski K, Gruszkiewicz A, Wytrwal-Sarna M, Bernasik A, Zapotoczny S. The grafting density and thickness of polythiophene-based brushes determine the orientation, conjugation length and stability of the grafted chains. Polym Chem 2017. [DOI: 10.1039/c7py01418j] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A self-templating surface-initiated method combining ATRP and oxidative polymerization leads to the formation of ladder-like polythiophene-based brushes with a 90–100 mer conjugation length.
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Affiliation(s)
- K. Wolski
- Jagiellonian University
- Faculty of Chemistry
- 30-387 Krakow
- Poland
| | - A. Gruszkiewicz
- Jagiellonian University
- Faculty of Chemistry
- 30-387 Krakow
- Poland
| | - M. Wytrwal-Sarna
- AGH University of Science and Technology
- Academic Centre for Materials and Nanotechnology
- Krakow
- Poland
| | - A. Bernasik
- AGH University of Science and Technology
- Academic Centre for Materials and Nanotechnology
- Krakow
- Poland
- AGH University of Science and Technology
| | - S. Zapotoczny
- Jagiellonian University
- Faculty of Chemistry
- 30-387 Krakow
- Poland
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