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Itoi H, Takagi K, Usami T, Nagai Y, Suzuki H, Matsuoka C, Iwata H, Ohzawa Y. Utilizing Activated Carbon Nanopores for Electrochemical Oxidation of Perylene to Redox-Active 3,10-Perylenedione: Application in Electrochemical Capacitor Electrodes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:10695-10704. [PMID: 38713153 DOI: 10.1021/acs.langmuir.4c00671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
We demonstrate that nanopores of activated carbon (AC) function as nanoreactors that oxidize perylene (PER) to a redox-active organic compound, 3,10-perylenedione (PERD), without any metal catalysts or organic solvents. PER is first adsorbed on AC in the gas phase, and the PER-adsorbed AC is subjected to electrochemical oxidation in aqueous H2SO4 as the electrolyte. Because gas-phase adsorption is solvent-free, PER is completely adsorbed on AC as long as the amount of PER does not exceed the saturated adsorption capacity of the AC, which enables accurate control of the amount adsorbed. PER is electrochemically oxidized to PERD in the nanopores of AC at above 0.7 V vs Ag/AgCl. The hybridized PERD undergoes a rapid reversible two-electron redox reaction in the nanopores owing to the large contact interface between the conductive carbon pore surfaces and PERD. The resulting AC/PERD hybrids serve as electrodes for electrochemical capacitors, utilizing the rapid redox reaction of PERD. The hybridization method is advantageous for quantitatively optimizing electrochemical capacitor performance by adjusting the amount of adsorbed PER. Moreover, because PERD hybridization in the AC nanopores does not expand the electrode volume, the volumetric capacitance increases with increasing hybridized PERD content. In three-electrode cell measurements, the volumetric capacitance at 0.05 A g-1 reaches 299 F cm-3, and 61% of this capacitance is retained at 10 A g-1 when 5 mmol of PER is used per gram of AC. Meanwhile, pristine AC delivers 117 F cm-3 at 0.05 A g-1 with a capacitance retention of 46% at 10 A g-1. Two-electrode cell measurements reveal that self-discharge is significantly suppressed by the hybridized PERD when AC/PERD hybrids and AC are used as cathodes and anodes, respectively, compared to that of a symmetrical AC cell. Moreover, PERD does not undergo cross-diffusion in the asymmetrical cells during self-discharge tests for 24 h.
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Affiliation(s)
- Hiroyuki Itoi
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa, Toyota 470-0392, Japan
| | - Kazuki Takagi
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa, Toyota 470-0392, Japan
| | - Takanori Usami
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa, Toyota 470-0392, Japan
| | - Yuto Nagai
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa, Toyota 470-0392, Japan
| | - Hayato Suzuki
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa, Toyota 470-0392, Japan
| | - Chika Matsuoka
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa, Toyota 470-0392, Japan
| | - Hiroyuki Iwata
- Department of Electrical and Electronics Engineering, Aichi Institute of Technology, Yachigusa 1247, Yakusa-cho, Toyota 470-0392, Japan
| | - Yoshimi Ohzawa
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa, Toyota 470-0392, Japan
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2
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Pallaka MR, Simon SL. The glass transition and enthalpy recovery of polystyrene nanorods using Flash differential scanning calorimetry. J Chem Phys 2024; 160:124904. [PMID: 38533885 DOI: 10.1063/5.0190076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 01/31/2024] [Indexed: 03/28/2024] Open
Abstract
The glass transition (Tg) behavior and enthalpy recovery of polystyrene nanorods within an anodic aluminum oxide (AAO) template (supported nanorods) and after removal from AAO (unsupported nanorods) is studied using Flash differential scanning calorimetry. Tg is found to be depressed relative to the bulk by 20 ± 2 K for 20 nm-diameter unsupported polystyrene (PS) nanorods at the slowest cooling rate and by 9 ± 1 K for 55 nm-diameter rods. On the other hand, bulk-like behavior is observed in the case of unsupported 350 nm-diameter nanorods and for all supported rods in AAO. The size-dependent Tg behavior of the PS unsupported nanorods compares well with results for ultrathin films when scaled using the volume/surface ratio. Enthalpy recovery was also studied for the 20 and 350 nm unsupported nanorods with evolution toward equilibrium found to be linear with logarithmic time. The rate of enthalpy recovery for the 350 nm rods was similar to that for the bulk, whereas the rate of recovery was enhanced for the 20 nm rods for down-jump sizes larger than 17 K. A relaxation map summarizes the behavior of the nanorods relative to the bulk and relative to that for the 20 nm-thick ultrathin film. Interestingly, the fragility of the 20 nm-diameter nanorod and the 20 nm ultrathin film are identical within the error of measurements, and when plotted vs departure from Tg (i.e., T - Tg), the relaxation maps of the two samples are identical in spite of the fact that the Tg is depressed 8 K more in the nanorod sample.
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Affiliation(s)
- Madhusudhan R Pallaka
- Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409, USA
| | - Sindee L Simon
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, USA
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3
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Mapazi O, Matabola P, Mokhena T, van der Walt H. The catalytic degradation of dyes using polyethersulfone/poly(vinylidene fluoride)/copper oxide composite nanofibers. J Appl Polym Sci 2023. [DOI: 10.1002/app.53679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Odwa Mapazi
- Analytical Chemistry Division Mintek Randburg South Africa
| | - Phillemon Matabola
- Advanced Materials DSI/Mintek‐ Nanotechnology Innovation Centre Randburg South Africa
| | - Teboho Mokhena
- Advanced Materials DSI/Mintek‐ Nanotechnology Innovation Centre Randburg South Africa
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Su Q, Zhao X, Zhang X, Wang Y, Zeng Z, Cui H, Wang C. Nano Functional Food: Opportunities, Development, and Future Perspectives. Int J Mol Sci 2022; 24:ijms24010234. [PMID: 36613678 PMCID: PMC9820276 DOI: 10.3390/ijms24010234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/02/2022] [Accepted: 12/05/2022] [Indexed: 12/25/2022] Open
Abstract
A functional food is a kind of food with special physiological effects that can improve health status or reduce illness. However, the active ingredients in functional foods are usually very low due to the instability and easy degradation of some nutrients. Therefore, improving the utilization rate of the effective ingredients in functional food has become the key problem. Nanomaterials have been widely used and studied in many fields due to their small size effect, high specific surface area, high target activity, and other characteristics. Therefore, it is a feasible method to process and modify functional food using nanotechnology. In this review, we summarize the nanoparticle delivery system and the food nanotechnology in the field of functional food. We also summarize and prospect the application, basic principle, and latest development of nano-functional food and put forward corresponding views.
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5
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Gecko-Inspired Adhesive Mechanisms and Adhesives for Robots—A Review. ROBOTICS 2022. [DOI: 10.3390/robotics11060143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Small living organisms such as lizards possess naturally built functional surface textures that enable them to walk or climb on versatile surface topographies. Bio-mimicking the surface characteristics of these geckos has enormous potential to improve the accessibility of modern robotics. Therefore, gecko-inspired adhesives have significant industrial applications, including robotic endoscopy, bio-medical cleaning, medical bandage tapes, rock climbing adhesives, tissue adhesives, etc. As a result, synthetic adhesives have been developed by researchers, in addition to dry fibrillary adhesives, elastomeric adhesives, electrostatic adhesives, and thermoplastic adhesives. All these adhesives represent significant contributions towards robotic grippers and gloves, depending on the nature of the application. However, these adhesives often exhibit limitations in the form of fouling, wear, and tear, which restrict their functionalities and load-carrying capabilities in the natural environment. Therefore, it is essential to summarize the state of the art attributes of contemporary studies to extend the ongoing work in this field. This review summarizes different adhesion mechanisms involving gecko-inspired adhesives and attempts to explain the parameters and limitations which have impacts on adhesion. Additionally, different novel adhesive fabrication techniques such as replica molding, 3D direct laser writing, dip transfer processing, fused deposition modeling, and digital light processing are encapsulated.
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Oaki Y, Sato K. Nanoarchitectonics for conductive polymers using solid and vapor phases. NANOSCALE ADVANCES 2022; 4:2773-2781. [PMID: 36132001 PMCID: PMC9418446 DOI: 10.1039/d2na00203e] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 04/21/2022] [Indexed: 05/03/2023]
Abstract
Conductive polymers have been extensively studied as functional organic materials due to their broad range of applications. Conductive polymers, such as polypyrrole, polythiophene, and their derivatives, are typically obtained as coatings and precipitates in the solution phase. Nanoarchitectonics for conductive polymers requires new methods including syntheses and morphology control. For example, nanoarchitectonics is achieved by liquid-phase syntheses with the assistance of templates, such as macromolecules and porous materials. This minireview summarizes the other new synthetic methods using the solid and vapor phases for nanoarchitectonics. In general, the monomers and related species are supplied from the solution phase. Our group has studied polymerization of heteroaromatic monomers using the solid and vapor phases. The surface and inside of solid crystals were used for the polymerization with the diffusion of the heteroaromatic monomer vapor. Our nanoarchitectonics affords to form homogeneous coatings, hierarchical structures, composites, and copolymers for energy-related applications. The concepts using solid and vapor phases can be applied to nanoarchitectonics for not only conductive polymers but also other polymers toward a variety of applications.
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Affiliation(s)
- Yuya Oaki
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kosuke Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
- Organic Materials Chemistry Group, Sagami Chemical Research Institute 2743-1 Hayakawa Ayase Kanagawa 252-1193 Japan
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Yarysheva AY, Bakirov AV, Yarysheva LM, Arzhakov MS, Arzhakova OV, Chvalun SN. Unique structure and new thermophysical properties of poly(ethylene oxide) in nanocomposites based on nanoporous polypropylene matrices. J Appl Polym Sci 2022. [DOI: 10.1002/app.52424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | | | - Maxim S. Arzhakov
- Faculty of Chemistry Lomonosov Moscow State University Moscow Russia
| | - Olga V. Arzhakova
- Faculty of Chemistry Lomonosov Moscow State University Moscow Russia
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Wang X, Li H, Shan C, Pan B. Construction of model platforms to probe the confinement effect of nanocomposite-enabled water treatment. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2021.100229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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9
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Yarysheva AY, Sitnov NA, Bakirov AV, Yarysheva LM, Arzhakov MS, Arzhakova OV, Chvalun SN. Effect of Nanoscale Confinements on the Crystallization of Poly(ethylene oxide) in the Pores of Polyolefins Deformed by the Crazing Mechanism. POLYMER SCIENCE SERIES A 2021. [DOI: 10.1134/s0965545x21060146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Suriyanarayanan S, Nicholls IA. Making nanostructured materials from maize, milk and malacostraca. Sci Rep 2021; 11:24420. [PMID: 34952920 PMCID: PMC8709840 DOI: 10.1038/s41598-021-04001-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 12/13/2021] [Indexed: 11/25/2022] Open
Abstract
Nano-structured materials are used in electronics, diagnostics, therapeutics, smart packaging, energy management and textiles, areas critical for society and quality of life. However, their fabrication often places high demands on limited natural resources. Accordingly, renewable sources for the feedstocks used in their production are highly desirable. We demonstrate the use of readily available biopolymers derived from maize (zein), milk (casein) and malacostraca (crab-shell derived chitin) in conjunction with sacrificial templates, self-assembled monodisperse latex beads and anodized aluminium membranes, for producing robust surfaces coated with highly regular hyperporous networks or wire-like morphological features, respectively. The utility of this facile strategy for nano-structuring of biopolymers was demonstrated in a surface based-sensing application, where biotin-selective binding sites were generated in the zein-based nano-structured hyperporous network.
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Affiliation(s)
- Subramanian Suriyanarayanan
- Bioorganic and Biophysical Chemistry Laboratory, Linnaeus Centre for Biomaterials Chemistry, Department of Chemistry and Biomedical Sciences, Linnaeus University, 39231, Kalmar, Sweden.
| | - Ian A Nicholls
- Bioorganic and Biophysical Chemistry Laboratory, Linnaeus Centre for Biomaterials Chemistry, Department of Chemistry and Biomedical Sciences, Linnaeus University, 39231, Kalmar, Sweden.
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11
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Guo Y, Zhou Y, Xu Y. Engineering polymers with metal-like thermal conductivity—Present status and future perspectives. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124168] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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12
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The Application of Hollow Carbon Nanofibers Prepared by Electrospinning to Carbon Dioxide Capture. Polymers (Basel) 2021; 13:polym13193275. [PMID: 34641091 PMCID: PMC8512053 DOI: 10.3390/polym13193275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/20/2021] [Accepted: 09/23/2021] [Indexed: 01/15/2023] Open
Abstract
Coaxial electrospinning has been considered a straightforward and convenient method for producing hollow nanofibers. Therefore, the objective of this study was to develop hollow activated carbon nanofibers (HACNFs) for CO2 capture in order to reduce emissions of CO2 to the atmosphere and mitigate global warming. Results showed that the sacrificing core could be decomposed at carbonization temperatures above 900 °C, allowing the formation of hollow nanofibers. The average outer diameters of HACNFs ranged from 550 to 750 nm, with a shell thickness of 75 nm. During the carbonization stage, the denitrogenation reactions were significant, while in the CO2 activation process, the release of carbon oxides became prominent. Therefore, the CO2 activation could increase the percentages of N=C and quaternary N groups. The major nitrogen functionalities on most samples were O=C-NH and quaternary N. However, =C and quaternary N groups were found to be crucial in determining the CO2 adsorption performance. CO2 adsorption on HACNFs occurred due to physical adsorption and was an exothermic reaction. The optimal CO2 adsorption performance was observed for HACNFs carbonized at 900 °C, where 3.03 mmol/g (1 atm) and 0.99 mmol/g (0.15 atm) were measured at 25 °C. The degradation of CO2 uptakes after 10 adsorption-desorption cyclic runs could be maintained within 8.9%.
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13
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Ok S, Vayer M, Sinturel C. A decade of innovation and progress in understanding the morphology and structure of heterogeneous polymers in rigid confinement. SOFT MATTER 2021; 17:7430-7458. [PMID: 34341814 DOI: 10.1039/d1sm00522g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
When confined in nanoscale domains, polymers generally encounter changes in their structural, thermodynamics and dynamics properties compared to those in the bulk, due to the high amount of polymer/wall interfaces and limited amount of matter. The present review specifically deals with the confinement of heterogeneous polymers (i.e. polymer blends and block copolymers) in rigid nanoscale domains (i.e. bearing non-deformable solid walls) where the processes of phase separation and self-assembly can be deeply affected. This review focuses on the innovative contributions of the last decade (2010-2020), giving a summary of the new insights and understanding gained in this period. We conclude this review by giving our view on the most thriving directions for this topic.
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Affiliation(s)
- Salim Ok
- Petroleum Research Center, Kuwait Institute for Scientific Research, P.O. Box 24885, Safat, 13109, Kuwait.
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14
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Thakur N, Thakur N, Bhullar V, Sharma S, Mahajan A, Kumar K, Sharma DP, Pathak D. TiO2 nanofibers fabricated by electrospinning technique and degradation of MO dye under UV light. Z KRIST-CRYST MATER 2021. [DOI: 10.1515/zkri-2021-2025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Titanium dioxide (TiO2) nanofibers were synthesized by electrospinning to optimize the photocatalytic action efficiency. The synthesis of the fibers was carried out at four different wt% concentrations: 8, 9, 10 & 11% of polymer polyvinylpyrrolidone (PVP). The TiO2 fibers were further calcined at 700 °C to get powder form. The uncalcinated and calcined TiO2 nanofibers were characterized by using X-Ray diffraction (XRD), Raman spectroscopy, Scanning electron microscopy (SEM) and UV-Visible spectroscopy. Raman spectroscopy confirmed the rutile phase of the calcined TiO2nanofibers in powder form with a crystallite size of 34–38 nm. The surface morphology of the uncalcinated and calcined TiO2 nanofibers was examined by SEM and the fiber diameter found to be 360–540 nm. The optical bandgap of the calcined TiO2 nanofibers was found in the range of 3.29–3.24 eV. The photocatalytic activity of the TiO2 nanofibers as examined for uncalcinated and calcined nanofibers, methyl orange (MO) dye degraded up to 98 and 78%, respectively in 180 min under the exposure of UV light. Uncalcinated TiO2 nanofibers were found more suitable for degradation of MO dye as compared to calcined nanofibers.
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Affiliation(s)
- Naveen Thakur
- Department of Physics , Career Point University , Hamirpur , HP , India
| | - Nikesh Thakur
- Department of Physics , Career Point University , Hamirpur , HP , India
| | - Viplove Bhullar
- Department of Physics , Guru Nanak Dev University , Amritsar , Punjab , India
| | - Saurabh Sharma
- Department of Chemistry , Career Point University , Hamirpur , HP , India
| | - Aman Mahajan
- Department of Physics , Guru Nanak Dev University , Amritsar , Punjab , India
| | - Kuldeep Kumar
- Department of Chemistry , Career Point University , Hamirpur , HP , India
| | - Davinder Pal Sharma
- Department of Physics , University of the West Indies , Trinidad , West Indies
| | - Dinesh Pathak
- School of Physics and Materials Science , Shoolini University of Biotechnology & Management Sciences , Bajhol , Solan 173212 , HP , India
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15
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Carbon Dioxide Adsorption on Carbon Nanofibers with Different Porous Structures. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11167724] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Electrospinning techniques have become an efficient way to produce continuous and porous carbon nanofibers. In view of CO2 capture as one of the important works for alleviating global warming, this study intended to synthesize polyacrylonitrile (PAN)-based activated carbon nanofibers (ACNFs) using electrospinning processes for CO2 capture. Different structures of PAN-based ACNFs were prepared, including solid, hollow, and porous nanofibers, where poly(methyl methacrylate) (PMMA) was selected as the sacrificing core or pore generator. The results showed that the PMMA could be removed successfully at a carbonization temperature of 900 °C, forming the hollow or porous ACNFs. The diameters of the ACNFs ranged from 500 to 900 nm, and the shell thickness of the hollow ACNFs was approximately 70–110 nm. The solid ACNFs and hollow ACNFs were microporous materials, while the porous ACNFs were characterized by hierarchical pore structures. The hollow ACNFs and porous ACNFs possessed higher specific surface areas than that of the solid ACNFs, while the solid ACNFs exhibited the highest microporosity (94%). The CO2 adsorption capacity on the ACNFs was highly dependent on the ratio of V<0.7 nm to Vt, the ratio of Vmi to Vt, and the N-containing functional groups. The CO2 adsorption breakthrough curves could be curve-fitted well with the Yoon and Nelson model. Furthermore, the 10 cyclic tests demonstrated that the ACNFs are promising adsorbents.
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16
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Liu Y, Wu Y, Yao J, Yin J, Lu J, Mao J, Yao M, Luo F. Confined Crystallization and Melting Behaviors of 3-Pentadecylphenol in Anodic Alumina Oxide Nanopores. ACS OMEGA 2021; 6:18235-18247. [PMID: 34308054 PMCID: PMC8296606 DOI: 10.1021/acsomega.1c02112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
To explore the effects of end groups on the confined crystallization of an alkyl chain, 3-pentadecylphenol (PDP) was infiltrated into the anodic aluminum oxide template (AAO) to investigate the melting and crystallization behaviors of PDP in a nanoconfined environment. Wide-angle X-ray diffraction (WAXD) found that the solid-solid phase transition of PDP occurred under confined conditions, and the absence of the (00L) reflections indicated that the stacking of the end groups of the alkyl chain layered structure was seriously disturbed. Thermal analysis (TG) showed that the thermal stability of the confined samples decreased due to the confinement effect, and the introduction of end groups made the confinement effect more obvious. Differential scanning calorimeter (DSC) results well reflected the space-time equivalence in the PDP crystallization processes, i.e., the solid-solid phase transition can be achieved by reducing the cooling rate or confining PDP in the nanometer space. Compared with C15, the introduction of the end groups with a phenol ring led to the disappearance of the solid-solid phase transition of an alkyl chain at high cooling rates. In the confined environment, the introduction of the end groups with a phenol ring caused the melting double peaks of the alkyl chain to become a single melting peak, and it also caused the disappearance of the surface freezing monolayer for alkyl chains. Through the analysis of crystallinity, it was found that AAO-PDP was more sensitive to AAO pore size changes than AAO-C15, the X c of AAO-PDP had a good linear relationship with the pore size d, but the X c of the AAO-C15 had a nonlinear relationship with the pore size d. Attenuated total reflection (ATR)-IR proved that in the confined environment, the order of the alkyl chain decreased and the degree of chain distortion increased.
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Affiliation(s)
- Yongdong Liu
- State
Key Laboratory of High-Efficiency Coal Utilization and Green Chemical
Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
| | - Yonghong Wu
- State
Key Laboratory of High-Efficiency Coal Utilization and Green Chemical
Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
| | - Jianqi Yao
- State
Key Laboratory of High-Efficiency Coal Utilization and Green Chemical
Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
| | - Jiajie Yin
- State
Key Laboratory of High-Efficiency Coal Utilization and Green Chemical
Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
| | - Jing Lu
- State
Key Laboratory of High-Efficiency Coal Utilization and Green Chemical
Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
| | - Jie Mao
- State
Key Laboratory of High-Efficiency Coal Utilization and Green Chemical
Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
| | - Min Yao
- State
Key Laboratory of High-Efficiency Coal Utilization and Green Chemical
Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
- Ningxia
Baofeng Energy Group, Yinchuan 750001, China
| | - Faliang Luo
- State
Key Laboratory of High-Efficiency Coal Utilization and Green Chemical
Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, China
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He HC, Chen YF, Wang SF, Shen MH, Lin YL, Chang CW, Sugiyama T, Chen JT. Laser-assisted nanowetting (LAN): Hierarchical Nanocomposites containing polymer/gold nanorods on breath figure films. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Shi X, Wang L, Yan N, Wang Z, Guo L, Steinhart M, Wang Y. Fast Evaporation Enabled Ultrathin Polymer Coatings on Nanoporous Substrates for Highly Permeable Membranes. Innovation (N Y) 2021; 2:100088. [PMID: 34557742 PMCID: PMC8454551 DOI: 10.1016/j.xinn.2021.100088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 01/31/2021] [Indexed: 11/18/2022] Open
Abstract
Thin polymer coatings covering on porous substrates are a common composite structure required in numerous applications, including membrane separation, and there is a strong need to push the coating thicknesses down to the nanometer scale to maximize the performances. However, producing such ultrathin polymer coatings in a facile and efficient way remains a big challenge. Here, uniform ultrathin polymer covering films (UPCFs) are realized by a facile and general approach based on rapid solvent evaporation. By fast evaporating dilute polymer solutions spread on the surface of porous substrates, we obtain ultrathin coatings (down to ∼30 nm) exclusively on the top surface of porous substrates, forming UPCFs with a block copolymer of polystyrene-block-poly(2-vinyl pyridine) at room temperature or a homopolymer of poly(vinyl alcohol) (PVA) at elevated temperatures. Upon selective swelling of the block copolymer and crosslinking of PVA, we obtain highly permeable membranes delivering ∼2–10 times higher permeance in ultrafiltration and pervaporation than state-of-the-art membranes with comparable selectivities. We have invented a very convenient but highly efficient process for the direct preparation of defective-free ultrathin coatings on porous substrates, which is extremely desired in different fields in addition to membrane separation. Fast solvent evaporation is developed to produce UPCFs on porous substrates Selective swelling to cavitate block copolymers to form interconnected mesopores UPCFs enable the preparation of highly permeable membranes
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Affiliation(s)
- Xiansong Shi
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, P.R. China
| | - Lei Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, P.R. China
| | - Nina Yan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, P.R. China
| | - Zhaogen Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, P.R. China
| | - Leiming Guo
- Institut für Chemie neuer Materialien, Universität Osnabrück, Barbarastr. 7, 49069 Osnabrück, Germany
| | - Martin Steinhart
- Institut für Chemie neuer Materialien, Universität Osnabrück, Barbarastr. 7, 49069 Osnabrück, Germany
- Corresponding author
| | - Yong Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, P.R. China
- Corresponding author
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19
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Ho JH, Shih TW, Liu CT, He HC, Lin YL, Lee LR, Lin KT, Tseng YH, Sugiyama T, Chen JT. Laser-Induced NanoKneading (LINK): Deformation of Patterned Azopolymer Nanopillar Arrays via Photo-Fluidization. Macromol Rapid Commun 2021; 42:e2000723. [PMID: 33543553 DOI: 10.1002/marc.202000723] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/12/2021] [Indexed: 11/09/2022]
Abstract
Ordered arrays of polymer nanostructures have been widely investigated because of their promising applications such as solar-cell devices, sensors, and supercapacitors. It remains a great challenge, however, to manipulate the shapes of individual nanostructures in arrays for tailoring specific properties. In this study, an effective strategy to prepare anisotropic polymer nanopillar arrays via photo-fluidization is presented. Azobenzene-containing polymers (azopolymers) are first infiltrated into the nanopores of ordered anodic aluminum oxide (AAO) templates. After the removal of the AAO templates using weak bases, azopolymer nanopillar arrays can be prepared. Upon exposure of linearly polarized lights, azobenzene groups in the azopolymers undergo trans-cis-trans photoisomerization, causing mass migration and elongation of the nanopillar along with the polarization directions. As a result, anisotropic nanopillar arrays can be fabricated, of which the deformation degrees are controlled by the illumination times. Furthermore, patterned nanopillar arrays can also be constructed with designed photomasks. This work presents a practical and versatile strategy to fabricate arrays of anisotropic nanostructures for future technical applications.
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Affiliation(s)
- Jhih-Hao Ho
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Tsung-Wei Shih
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Chih-Ting Liu
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Hung-Chieh He
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Yu-Liang Lin
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Lin-Ruei Lee
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Kuan-Ting Lin
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Yu-Hsuan Tseng
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Teruki Sugiyama
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan.,Center for Emergent Functional Matter Science, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Jiun-Tai Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan.,Center for Emergent Functional Matter Science, National Chiao Tung University, Hsinchu, 30010, Taiwan
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20
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Cencha LG, Dittrich G, Huber P, Berli CLA, Urteaga R. Precursor Film Spreading during Liquid Imbibition in Nanoporous Photonic Crystals. PHYSICAL REVIEW LETTERS 2020; 125:234502. [PMID: 33337190 DOI: 10.1103/physrevlett.125.234502] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/01/2020] [Accepted: 11/06/2020] [Indexed: 06/12/2023]
Abstract
When a macroscopic droplet spreads, a thin precursor film of liquid moves ahead of the advancing liquid-solid-vapor contact line. Whereas this phenomenon has been explored extensively for planar solid substrates, its presence in nanostructured geometries has barely been studied so far, despite its importance for many natural and technological fluid transport processes. Here we use porous photonic crystals in silicon to resolve by light interferometry capillarity-driven spreading of liquid fronts in pores of few nanometers in radius. Upon spatiotemporal rescaling the fluid profiles collapse on master curves indicating that all imbibition fronts follow a square-root-of-time broadening dynamics. For the simple liquid (glycerol) a sharp front with a widening typical of Lucas-Washburn capillary-rise dynamics in a medium with pore-size distribution occurs. By contrast, for a polymer (PDMS) a precursor film moving ahead of the main menisci entirely alters the nature of the nanoscale transport, in agreement with predictions of computer simulations.
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Affiliation(s)
- Luisa G Cencha
- Polymer Reaction Engineering Group, INTEC (Universidad Nacional del Litoral-CONICET), Gemes 3450, Santa Fe 3000, Argentina
| | - Guido Dittrich
- Hamburg University of Technology, Materials Physics and High-Resolution X-Ray Analytics, Hamburg University of Technology, 21073 Hamburg, Germany
| | - Patrick Huber
- Hamburg University of Technology, Materials Physics and High-Resolution X-Ray Analytics, Hamburg University of Technology, 21073 Hamburg, Germany
- Deutsches Elektronen-Synchrotron DESY, Center for X-Ray and Nano Science, 22603 Hamburg, Germany
- University of Hamburg, Centre for Hybrid Nanostructures CHyN, 22607 Hamburg, Germany
| | - Claudio L A Berli
- INTEC (Universidad Nacional del Litoral-CONICET), Predio CCT CONICET Santa Fe, RN 168, 3000 Santa Fe, Argentina
| | - Raul Urteaga
- IFIS-Litoral (Universidad Nacional del Litoral-CONICET), Guemes 3450, 3000 Santa Fe, Argentina
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21
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Petrov R, Loumaigne M, Barillé R, Frère P. Refined RGB Strategy for the Synthesis of Polymer‐Based Full Organic Luminescent Nanotubes with Broad Emission Bands. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ravil Petrov
- MOLTECH-Anjou Université d'Angers/UMR CNRS 6200 2 Boulevard Lavoisier 49045 Angers France
| | - Matthieu Loumaigne
- MOLTECH-Anjou Université d'Angers/UMR CNRS 6200 2 Boulevard Lavoisier 49045 Angers France
| | - Régis Barillé
- MOLTECH-Anjou Université d'Angers/UMR CNRS 6200 2 Boulevard Lavoisier 49045 Angers France
| | - Pierre Frère
- MOLTECH-Anjou Université d'Angers/UMR CNRS 6200 2 Boulevard Lavoisier 49045 Angers France
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22
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Samanta P, Srivastava R, Nandan B. Fabrication and crystallization behavior of hollow poly(
l
‐lactic acid) nanofibers. POLYMER CRYSTALLIZATION 2020. [DOI: 10.1002/pcr2.10147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pratick Samanta
- Department of Textile Technology Indian Institute of Technology Delhi New Delhi India
- Department of Fiber and Polymer Technology KTH Royal Institute of Technology Stockholm Sweden
| | - Rajiv Srivastava
- Department of Textile Technology Indian Institute of Technology Delhi New Delhi India
| | - Bhanu Nandan
- Department of Textile Technology Indian Institute of Technology Delhi New Delhi India
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23
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Lin KT, Chen YJ, Huang MR, Karapala VK, Ho JH, Chen JT. Light-Induced Nanowetting: Erasable and Rewritable Polymer Nanoarrays via Solid-to-Liquid Transitions. NANO LETTERS 2020; 20:5853-5859. [PMID: 32697594 DOI: 10.1021/acs.nanolett.0c01764] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Template wetting methods have been widely applied in the preparation of one-dimensional (1D) polymer nanomaterials. The pattern control using the template wetting methods, however, still remains a great challenge, mainly due to the nonselectivity of the polymers toward the environmental triggering. In this work, we present a facile light-induced nanowetting (LIN) method to fabricate patterned nanoarrays using anodic aluminum oxide (AAO) templates. Photoresponsive azobenzene-containing polymers (azopolymers) that exhibit light-induced reversible solid-to-liquid transitions are used. Upon exposure to ultraviolet lights, the azopolymer chains can wet the nanopores of the AAO templates in a liquid state via capillary force. The azopolymer chains are then solidified by illuminating them with visible lights, resulting in the formation of azopolymer nanoarrays. Notably, using designed photomasks, the patterns of the nanoarrays can be ingeniously controlled with the characteristic of erasable and rewritable nanostructures.
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Affiliation(s)
- Kuan-Ting Lin
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30010
| | - Yu-Jia Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30010
| | - Meng-Ru Huang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30010
| | | | - Jhih-Hao Ho
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30010
| | - Jiun-Tai Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30010
- Center for Emergent Functional Matter Science, National Chiao Tung University, Hsinchu, Taiwan 30010
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24
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Safari M, Leon Boigues L, Shi G, Maiz J, Liu G, Wang D, Mijangos C, Müller AJ. Effect of Nanoconfinement on the Isodimorphic Crystallization of Poly(butylene succinate-ran-caprolactone) Random Copolymers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01081] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maryam Safari
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
| | - Laia Leon Boigues
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas, ICTP-CSIC, Juan de la Cierva 3, Madrid 28006, Spain
| | - Guangyu Shi
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jon Maiz
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
| | - Guoming Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dujin Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Carmen Mijangos
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas, ICTP-CSIC, Juan de la Cierva 3, Madrid 28006, Spain
- Departamento de Física de Materiales, University of the Basque Country UPV/EHU and Centro de Física de Materiales (CFM) (CSIC-UPV/EHU)—Materials Physics Center (MPC), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
| | - Alejandro J. Müller
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain
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25
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He H, Yan A, Karapala VK, Wang S, Shen M, Lin Y, Chen Y, Sugiyama T, Chen J. Laser‐Assisted Nanowetting: Selective Fabrication of Polymer/Gold Nanorod Arrays Using Anodic Aluminum Oxide Templates. Macromol Rapid Commun 2020; 41:e2000035. [DOI: 10.1002/marc.202000035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/17/2020] [Accepted: 02/17/2020] [Indexed: 11/05/2022]
Affiliation(s)
- Hung‐Chieh He
- Department of Applied ChemistryNational Chiao Tung University Hsinchu 30010 Taiwan
| | - Ai‐Ling Yan
- Department of Applied ChemistryNational Chiao Tung University Hsinchu 30010 Taiwan
| | | | - Shun‐Fa Wang
- Department of Applied ChemistryNational Chiao Tung University Hsinchu 30010 Taiwan
| | - Ming‐Hui Shen
- Department of Applied ChemistryNational Chiao Tung University Hsinchu 30010 Taiwan
| | - Yu‐Liang Lin
- Department of Applied ChemistryNational Chiao Tung University Hsinchu 30010 Taiwan
| | - Yi‐Fan Chen
- Department of Applied ChemistryNational Chiao Tung University Hsinchu 30010 Taiwan
| | - Teruki Sugiyama
- Department of Applied ChemistryNational Chiao Tung University Hsinchu 30010 Taiwan
- Graduate School of Materials ScienceNara Institute of Science and Technology Ikoma Nara 630‐0192 Japan
- Center for Emergent Functional Matter ScienceNational Chiao Tung University Hsinchu 30010 Taiwan
| | - Jiun‐Tai Chen
- Department of Applied ChemistryNational Chiao Tung University Hsinchu 30010 Taiwan
- Center for Emergent Functional Matter ScienceNational Chiao Tung University Hsinchu 30010 Taiwan
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26
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Robust Fabrication of Polymeric Nanowire with Anodic Aluminum Oxide Templates. MICROMACHINES 2019; 11:mi11010046. [PMID: 31905961 PMCID: PMC7019737 DOI: 10.3390/mi11010046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 12/24/2019] [Accepted: 12/27/2019] [Indexed: 11/16/2022]
Abstract
Functionalization of a surface with biomimetic nano-/micro-scale roughness (wires) has attracted significant interests in surface science and engineering as well as has inspired many real-world applications including anti-fouling and superhydrophobic surfaces. Although methods relying on lithography include soft-lithography greatly increase our abilities in structuring hard surfaces with engineered nano-/micro-topologies mimicking real-world counterparts, such as lotus leaves, rose petals, and gecko toe pads, scalable tools enabling us to pattern polymeric substrates with the same structures are largely absent in literature. Here we present a robust and simple technique combining anodic aluminum oxide (AAO) templating and vacuum-assisted molding to fabricate nanowires over polymeric substrates. We have demonstrated the efficacy and robustness of the technique by successfully fabricating nanowires with large aspect ratios (>25) using several common soft materials including both cross-linking polymers and thermal plastics. Furthermore, a model is also developed to determine the length and molding time based on nanowires material properties (e.g., viscosity and interfacial tension) and operational parameters (e.g., pressure, vacuum, and AAO template dimension). Applying the technique, we have further demonstrated the confinement effects on polymeric crosslinking processes and shown substantial lengthening of the curing time.
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27
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Safari M, Maiz J, Shi G, Juanes D, Liu G, Wang D, Mijangos C, Alegría Á, Müller AJ. How Confinement Affects the Nucleation, Crystallization, and Dielectric Relaxation of Poly(butylene succinate) and Poly(butylene adipate) Infiltrated within Nanoporous Alumina Templates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:15168-15179. [PMID: 31621336 DOI: 10.1021/acs.langmuir.9b02215] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This work describes the successful melt infiltration of poly(butylene succinate) (PBS) and poly(butylene adipate) (PBA) within 70 nm diameter anodic aluminum oxide (AAO) templates. The infiltrated samples were characterized by SEM, Raman, and FTIR spectroscopy. The crystallization behaviors and crystalline structures of both polymers, bulk and confined, were analyzed by differential scanning calorimetry (DSC) and grazing incidence wide angle X-ray scattering (GIWAXS). DSC revealed that a change in the nucleation process occurred from heterogeneous nucleation for bulk samples to homogeneous nucleation for infiltrated PBA and to surface-induced nucleation for infiltrated PBS. GIWAXS results indicate that PBS nanofibers crystallize in the α-phase, as well as their bulk samples. However, PBA nanofibers crystallize just in the β-phase, whereas PBA bulk samples crystallize in a mixture of α- and β-phases. The crystal orientation within the pores was determined, and differences between PBS and PBA were also found. Finally, broadband dielectric spectroscopy was applied to study the segmental dynamics for bulk and infiltrated samples. The glass temperature was found to significantly decrease in the PBS case upon infiltration, while that of PBA remained unchanged. These differences were correlated with the higher affinity of PBS to the AAO walls than PBA, in accordance with their nucleation behavior (surface-induced versus homogeneous nucleation, respectively).
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Affiliation(s)
- Maryam Safari
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry , University of the Basque Country UPV/EHU , Paseo Manuel de Lardizábal, 3 , 20018 Donostia-San Sebastián , Spain
| | - Jon Maiz
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry , University of the Basque Country UPV/EHU , Paseo Manuel de Lardizábal, 3 , 20018 Donostia-San Sebastián , Spain
| | - Guangyu Shi
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, the Chinese Academy of Sciences , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Diana Juanes
- Instituto de Ciencia y Tecnología de Polímeros , Consejo Superior de Investigaciones Científicas, ICTP-CSIC , Juan de la Cierva 3 , Madrid 28006 , Spain
| | - Guoming Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, the Chinese Academy of Sciences , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Dujin Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, the Chinese Academy of Sciences , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Carmen Mijangos
- Instituto de Ciencia y Tecnología de Polímeros , Consejo Superior de Investigaciones Científicas, ICTP-CSIC , Juan de la Cierva 3 , Madrid 28006 , Spain
- Departamento de Física de Materiales , University of the Basque Country UPV/EHU and Centro de Física de Materiales (CFM) (CSIC-UPV/EHU) - Materials Physics Center (MPC) , Paseo Manuel de Lardizabal 5 , 20018 San Sebastián , Spain
| | - Ángel Alegría
- Departamento de Física de Materiales , University of the Basque Country UPV/EHU and Centro de Física de Materiales (CFM) (CSIC-UPV/EHU) - Materials Physics Center (MPC) , Paseo Manuel de Lardizabal 5 , 20018 San Sebastián , Spain
| | - Alejandro J Müller
- POLYMAT and Polymer Science and Technology Department, Faculty of Chemistry , University of the Basque Country UPV/EHU , Paseo Manuel de Lardizábal, 3 , 20018 Donostia-San Sebastián , Spain
- IKERBASQUE, Basque Foundation for Science , 48013 Bilbao , Spain
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28
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Guan W, Li S, Tang L. Fabrication polymer nanofiber networks with regulated microstructures via RAFT polymerization of supramolecular gels in different solvents. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.08.037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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29
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Sayin S, Ozdemir E, Acar E, Ince GO. Multifunctional one-dimensional polymeric nanostructures for drug delivery and biosensor applications. NANOTECHNOLOGY 2019; 30:412001. [PMID: 31347513 DOI: 10.1088/1361-6528/ab2e2c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Advances in nanotechnology in the last decades have paved the way for significant achievements in diagnosis and treatment of various diseases. Different types of functional nanostructures have been explored and utilized as tools for addressing the challenges in detection or treatment of diseases. In particular, one-dimensional nanostructures hold great promise in theranostic applications due to their increased surface area-to-volume ratios, which allow better targeting, increased loading capacity and improved sensitivity to biomolecules. Stable polymeric nanostructures that are stimuli-responsive, biocompatible and biodegradable are especially preferred for bioapplications. In this review, different synthesis techniques of polymeric one-dimensional nanostructures are explored and functionalization methods of these nanostructures for specific applications are explained. Biosensing and drug delibiovery applications of these nanostructures are presented in detail.
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Affiliation(s)
- Sezin Sayin
- Materials Science and Nano Engineering, Faculty of Engineering and Natural Sciences, Sabanci University, 34956 Istanbul, Turkey
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30
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Han D, Steckl AJ. Coaxial Electrospinning Formation of Complex Polymer Fibers and their Applications. Chempluschem 2019; 84:1453-1497. [PMID: 31943926 DOI: 10.1002/cplu.201900281] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/27/2019] [Indexed: 12/12/2022]
Abstract
The formation of fibers by electrospinning has experienced explosive growth in the past decade, recently reaching 4,000 publications and 1,500 patents per year. This impressive growth of interest is due to the ability to form fibers with a variety of materials, which lend themselves to a large and rapidly expanding set of applications. In particular, coaxial electrospinning, which forms fibers with multiple core-sheath layers from different materials in a single step, enables the combination of properties in a single fiber that are not found in nature in a single material. This article is a detailed review of coaxial electrospinning: basic mechanisms, early history and current status, and an in-depth discussion of various applications (biomedical, environmental, sensors, energy, catalysis, textiles). We aim to provide readers who are currently involved in certain aspects of coaxial electrospinning research an appreciation of other applications and of current results.
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Affiliation(s)
- Daewoo Han
- Department of Electrical Engineering and Computer Science, University of Cincinnati Nanoelectronics Laboratory, Cincinnati, OH 45221-0030, USA
| | - Andrew J Steckl
- Department of Electrical Engineering and Computer Science, University of Cincinnati Nanoelectronics Laboratory, Cincinnati, OH 45221-0030, USA
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31
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Baby T, Jose E T, Thomas P, Mathew JT. A cost effective and facile approach to prepare beadless polycarbonate nanofibers with ultrafine fiber morphology. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Thomas Baby
- Department of ChemistryKuriakose Gregorios College Pampady Kottayam Kerala India
| | - Tomlal Jose E
- Department of ChemistrySt. Berchmans College Changanacherry Kerala India
| | - P.C. Thomas
- Department of ChemistrySt. Berchmans College Changanacherry Kerala India
| | - Jomit T. Mathew
- Department of ChemistrySt. Berchmans College Changanacherry Kerala India
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32
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Han Z, Wang Z, Li B, Feng X, Jiao Z, Zhang J, Zhao J, Niu S, Ren L. Flexible Self-Cleaning Broadband Antireflective Film Inspired by the Transparent Cicada Wings. ACS APPLIED MATERIALS & INTERFACES 2019; 11:17019-17027. [PMID: 30993966 DOI: 10.1021/acsami.9b01948] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cicada wings, covered with arranged nanostructures, were widely studied owing to their high transparency and low reflection. However, limited by technologies, their exquisite surface structures and multifunctional features were not inherited and applied by most artificial materials adequately. Here, the excellent optical properties of the cicada wing were investigated in detail experimentally and theoretically. Besides, a flexible self-cleaning broadband antireflective film inspired by the cicada wing has been successfully fabricated by a well-designed biological template method and sol-gel process. The cicada wing ( Megapomponia intermedia) was selected as the original template directly, and a SiO2 negative replica was obtained by a sol-gel process. Then, chemical corrosion was used to remove the original template, retaining the pure negative replica. Subsequently, the polymethyl methacrylate (PMMA) positive replica could be rebuilt after another sol-gel process. Compared with a flat PMMA film, the average reflectivity of the structured PMMA film over the visible region was reduced from 10 to 2%. Besides, the bio-inspired film with a thickness of 0.18 mm exhibited satisfactory comprehensive performances with low reflectance (≤2%) in most of the visible region, as well as superhydrophobic property and perfect flexibility. Our results offered a quick and simple method to rebuild the nanostructured functional materials, promoting the practical applications of the bionic nanostructured materials. Meanwhile, the modified biomimetic fabrication method provides a solution for rebuilding exquisite biological materials and designing multifunctional surfaces. Moreover, the multifunctional antireflective film with wider universality will exhibit an enormous potential application value in optical communications, photoelectric devices, flexible display screens, and antidazzle glasses.
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Affiliation(s)
- Zhiwu Han
- Key Laboratory of Bionic Engineering, Ministry of Education , Jilin University , Changchun 130022 , People's Republic of China
| | - Ze Wang
- Key Laboratory of Bionic Engineering, Ministry of Education , Jilin University , Changchun 130022 , People's Republic of China
| | - Bo Li
- Key Laboratory of Bionic Engineering, Ministry of Education , Jilin University , Changchun 130022 , People's Republic of China
- Department of Chemistry , University of California-Riverside , Riverside , California 92521 , United States
| | - Xiaoming Feng
- Key Laboratory of Bionic Engineering, Ministry of Education , Jilin University , Changchun 130022 , People's Republic of China
| | - Zhibin Jiao
- Key Laboratory of Bionic Engineering, Ministry of Education , Jilin University , Changchun 130022 , People's Republic of China
| | - Junqiu Zhang
- Key Laboratory of Bionic Engineering, Ministry of Education , Jilin University , Changchun 130022 , People's Republic of China
- Department of Mechanical Engineering , Columbia University , New York 10027 , United States
| | - Jie Zhao
- Key Laboratory of Bionic Engineering, Ministry of Education , Jilin University , Changchun 130022 , People's Republic of China
| | - Shichao Niu
- Key Laboratory of Bionic Engineering, Ministry of Education , Jilin University , Changchun 130022 , People's Republic of China
| | - Luquan Ren
- Key Laboratory of Bionic Engineering, Ministry of Education , Jilin University , Changchun 130022 , People's Republic of China
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33
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León-Boigues L, von Bilderling C, Pietrasanta LI, Azzaroni O, Giussi JM, Mijangos C. A Patterned Butyl Methacrylate- co-2-Hydroxyethyl Acrylate Copolymer with Softening Surface and Swelling Capacity. Polymers (Basel) 2019; 11:E290. [PMID: 30960274 PMCID: PMC6419064 DOI: 10.3390/polym11020290] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 02/02/2019] [Indexed: 11/19/2022] Open
Abstract
The tunable swelling and mechanical properties of nanostructures polymers are crucial parameters for the creation of adaptive devices to be used in diverse fields, such as drug delivery, nanomedicine, and tissue engineering. We present the use of anodic aluminum oxide templates as a nanoreactor to copolymerize butyl methacrylate and 2-hydroxyethyl acrylate under radical conditions. The copolymer obtained under confinement showed significant differences with respect to the same copolymer obtained in bulk conditions. Molecular weights, molecular weight dispersities, Young's modulus, and wetting behaviors were significantly modified. The combination of selected monomers allowed us to obtain nanopillar structures with an interesting softening surface and extraordinary swelling capacity that could be of special interest to surface science and specifically, cell culture.
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Affiliation(s)
- Laia León-Boigues
- Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Catalina von Bilderling
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)⁻Departamento de Química⁻Facultad de Ciencias Exactas-Universidad Nacional de La Plata⁻CONICET, 1900 La Plata, Argentina.
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA Buenos Aires, Argentina.
| | - Lía I Pietrasanta
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA Buenos Aires, Argentina.
- Instituto de Física de Buenos Aires (IFIBA-CONICET), C1428EHA Buenos Aires, Argentina.
| | - Omar Azzaroni
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)⁻Departamento de Química⁻Facultad de Ciencias Exactas-Universidad Nacional de La Plata⁻CONICET, 1900 La Plata, Argentina.
| | - Juan M Giussi
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)⁻Departamento de Química⁻Facultad de Ciencias Exactas-Universidad Nacional de La Plata⁻CONICET, 1900 La Plata, Argentina.
| | - Carmen Mijangos
- Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain.
- Donostia International Physics Center (DIPC), Paseo Manuel Lardizabal 4 and Centro de Fisica de Materiales, CFM-CSIC/UPV-EHU Paseo de Manuel Lardizabal 5, 20018 Donostia-San Sebastian, Spain.
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34
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Galera AC, San Miguel V, Baselga J. Magneto-Mechanical Surfaces Design. CHEM REC 2018; 18:1010-1019. [DOI: 10.1002/tcr.201700073] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 02/05/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Andrés C. Galera
- Department of Materials Science and Engineering and Chemical Engineering; Universidad Carlos III de Madrid Av. Universidad, 30; 28911, Leganés Madrid Spain
| | - Verónica San Miguel
- Department of Materials Science and Engineering and Chemical Engineering; Universidad Carlos III de Madrid Av. Universidad, 30; 28911, Leganés Madrid Spain
| | - Juan Baselga
- Department of Materials Science and Engineering and Chemical Engineering; Universidad Carlos III de Madrid Av. Universidad, 30; 28911, Leganés Madrid Spain
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35
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Molecular self-assembly of one-dimensional polymer nanostructures in nanopores of anodic alumina oxide templates. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2017.10.004] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Liu H, Zhao H, Liu F, Li X, Zhang Z, Dong L, Yu L. Roles played by polysaccharides with different structures in biomimetic synthesis of cuprous oxide. CrystEngComm 2018. [DOI: 10.1039/c8ce01010b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, several polysaccharide derivatives, carboxymethyl cellulose sodium (CMC), carboxymethyl chitin (CMCH) and sodium alginate (HCM), were introduced as the template in the preparation of Cu2O.
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Affiliation(s)
- Huan Liu
- Key Laboratory of Marine Chemistry Theory and Technology
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Ocean University of China
- China
| | - Haizhou Zhao
- Key Laboratory of Marine Chemistry Theory and Technology
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Ocean University of China
- China
| | - Fangtao Liu
- Key Laboratory of Marine Chemistry Theory and Technology
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Ocean University of China
- China
| | - Xia Li
- Key Laboratory of Marine Chemistry Theory and Technology
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Ocean University of China
- China
| | - Ziqiu Zhang
- Key Laboratory of Marine Chemistry Theory and Technology
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Ocean University of China
- China
| | - Lei Dong
- Key Laboratory of Marine Chemistry Theory and Technology
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Ocean University of China
- China
| | - Liangmin Yu
- Key Laboratory of Marine Chemistry Theory and Technology
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Ocean University of China
- China
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37
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Zhang Z, Wang W, Lu Z, Liu K, Liu Q, Wang D. Facile fabrication of poly(glycidyl methacrylate)- b-polystyrene functional fibers under a shear field and immobilization of hemoglobin. NEW J CHEM 2018. [DOI: 10.1039/c8nj00198g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PGMA-b-PS fibers were fabricated under a shear field for immobilization of bovine hemoglobin which has potential applications in blood substitutes.
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Affiliation(s)
- Zhifeng Zhang
- School of Materials Science and Engineering
- Wuhan Textile University
- Wuhan 430073
- China
| | - Wenwen Wang
- School of Materials Science and Engineering
- Wuhan Textile University
- Wuhan 430073
- China
- Hubei Key Laboratory of Advanced Textile Materials & Application
| | - Zhentan Lu
- School of Materials Science and Engineering
- Wuhan Textile University
- Wuhan 430073
- China
- Hubei Key Laboratory of Advanced Textile Materials & Application
| | - Ke Liu
- School of Materials Science and Engineering
- Wuhan Textile University
- Wuhan 430073
- China
- Hubei Key Laboratory of Advanced Textile Materials & Application
| | - Qiongzhen Liu
- School of Materials Science and Engineering
- Wuhan Textile University
- Wuhan 430073
- China
- Hubei Key Laboratory of Advanced Textile Materials & Application
| | - Dong Wang
- School of Materials Science and Engineering
- Wuhan Textile University
- Wuhan 430073
- China
- Hubei Key Laboratory of Advanced Textile Materials & Application
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38
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Chang CW, Cheng MH, Ko HW, Chu CW, Tu YH, Chen JT. Microwave-annealing-induced nanowetting of block copolymers in cylindrical nanopores. SOFT MATTER 2017; 14:35-41. [PMID: 29210440 DOI: 10.1039/c7sm02103h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Block copolymers have attracted great attention because of their abilities to self-assemble into well-ordered microphase-separated structures. To generate nanopatterns of block copolymers with long-range ordering and low-defect densities in shorter time scales, microwave annealing has recently been applied. Microwave annealing, however, has so far only been used for block copolymer bulks and thin films. In this work, we discover that microwave annealing can be successfully applied to three-dimensional block copolymer nanostructures by studying the infiltration and microphase separation of block copolymers in cylindrical nanopores upon microwave irradiation. Cylinder-forming and lamella-forming poly(styrene-block-dimethylsiloxane) (PS-b-PDMS) are introduced into the nanopores of anodic aluminum oxide (AAO) templates. In addition, AAO templates with different pore sizes are used to study the effect of the commensurabilities between the pore diameters and the repeating periods of the block copolymers on the morphologies of the block copolymer nanostructures.
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Affiliation(s)
- Chun-Wei Chang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan.
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39
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Lastra ML, Molinuevo MS, Blaszczyk-Lezak I, Mijangos C, Cortizo MS. Nanostructured fumarate copolymer-chitosan crosslinked scaffold: An in vitro osteochondrogenesis regeneration study. J Biomed Mater Res A 2017; 106:570-579. [PMID: 28984066 DOI: 10.1002/jbm.a.36260] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 08/25/2017] [Accepted: 09/08/2017] [Indexed: 12/12/2022]
Abstract
In the tissue engineering field, the design of the scaffold inspired on the natural occurring tissue is of vital importance. Ideally, the scaffold surface must promote cell growth and differentiation, while promote angiogenesis in the in vivo implant of the scaffold. On the other hand, the material selection must be biocompatible and the degradation times should meet tissue reparation times. In the present work, we developed a nanofibrous scaffold based on chitosan crosslinked with diisopropylfumarate-vinyl acetate copolymer using anodized aluminum oxide (AAO) templates. We have previously demonstrated its biocompatibility properties with low cytotoxicity and proper degradation times. Now, we extended our studies to demonstrate that it can be successfully nanostructured using the AAO templates methodology, obtaining a nanorod-like scaffold with a diameter comparable to those of collagen fibers of the bone matrix (170 and 300 nm). The nanorods obtained presented a very homogeneous pattern in diameter and length, and supports cell attachment and growth. We also found that both osteoblastic and chondroblastic matrix production were promoted on bone marrow progenitor cells and primary condrocytes growing on the scaffolds, respectively. In addition, the nanostructured scaffold presented no cytotoxicity as it was evaluated using a model of macrophages on culture. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 570-579, 2018.
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Affiliation(s)
- María Laura Lastra
- Laboratorio de Investigación en Osteopatías y Metabolismo Mineral (LIOMM), Facultad de Ciencias Exactas, UNLP, 47 y 115, 1900, La Plata, Argentina.,Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), CCT-La Plata, CC16 suc. 4, 1900, La Plata, Argentina
| | - María Silvina Molinuevo
- Laboratorio de Investigación en Osteopatías y Metabolismo Mineral (LIOMM), Facultad de Ciencias Exactas, UNLP, 47 y 115, 1900, La Plata, Argentina
| | - Iwona Blaszczyk-Lezak
- Instituto de Ciencia y Tecnología de Polímeros, CSIC, Juan de la Cierva 3, Madrid, 28006, España
| | - Carmen Mijangos
- Instituto de Ciencia y Tecnología de Polímeros, CSIC, Juan de la Cierva 3, Madrid, 28006, España
| | - María Susana Cortizo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), CCT-La Plata, CC16 suc. 4, 1900, La Plata, Argentina
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40
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Zou SF, Wang RY, Fan B, Xu JT, Fan ZQ. Effect of interface and confinement size on the crystallization behavior of PLLA confined in coaxial electrospun fibers. J Appl Polym Sci 2017. [DOI: 10.1002/app.45980] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shu-Fen Zou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering; Zhejiang University; Hangzhou 310027 China
| | - Rui-Yang Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering; Zhejiang University; Hangzhou 310027 China
| | - Bin Fan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering; Zhejiang University; Hangzhou 310027 China
| | - Jun-Ting Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering; Zhejiang University; Hangzhou 310027 China
| | - Zhi-Qiang Fan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering; Zhejiang University; Hangzhou 310027 China
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41
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Reimann S, Danke V, Beiner M, Binder WH. Synthesis of supramolecular precision polymers: Crystallization under conformational constraints. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28759] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sophie Reimann
- Institute of Chemistry, Macromolecular Chemistry; Martin Luther University Halle-Wittenberg; 06120 Halle (Saale) Germany
| | - Varun Danke
- Fraunhofer Institut für Mikrostruktur von Werkstoffen und Systemen IMWS; 06120 Halle (Saale) Germany
| | - Mario Beiner
- Fraunhofer Institut für Mikrostruktur von Werkstoffen und Systemen IMWS; 06120 Halle (Saale) Germany
| | - Wolfgang H. Binder
- Institute of Chemistry, Macromolecular Chemistry; Martin Luther University Halle-Wittenberg; 06120 Halle (Saale) Germany
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42
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Coughlan C, Ibáñez M, Dobrozhan O, Singh A, Cabot A, Ryan KM. Compound Copper Chalcogenide Nanocrystals. Chem Rev 2017; 117:5865-6109. [PMID: 28394585 DOI: 10.1021/acs.chemrev.6b00376] [Citation(s) in RCA: 327] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This review captures the synthesis, assembly, properties, and applications of copper chalcogenide NCs, which have achieved significant research interest in the last decade due to their compositional and structural versatility. The outstanding functional properties of these materials stems from the relationship between their band structure and defect concentration, including charge carrier concentration and electronic conductivity character, which consequently affects their optoelectronic, optical, and plasmonic properties. This, combined with several metastable crystal phases and stoichiometries and the low energy of formation of defects, makes the reproducible synthesis of these materials, with tunable parameters, remarkable. Further to this, the review captures the progress of the hierarchical assembly of these NCs, which bridges the link between their discrete and collective properties. Their ubiquitous application set has cross-cut energy conversion (photovoltaics, photocatalysis, thermoelectrics), energy storage (lithium-ion batteries, hydrogen generation), emissive materials (plasmonics, LEDs, biolabelling), sensors (electrochemical, biochemical), biomedical devices (magnetic resonance imaging, X-ray computer tomography), and medical therapies (photochemothermal therapies, immunotherapy, radiotherapy, and drug delivery). The confluence of advances in the synthesis, assembly, and application of these NCs in the past decade has the potential to significantly impact society, both economically and environmentally.
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Affiliation(s)
- Claudia Coughlan
- Department of Chemical Sciences and Bernal Institute, University of Limerick , Limerick, Ireland
| | - Maria Ibáñez
- Catalonia Energy Research Institute - IREC, Sant Adria de Besos , Jardins de les Dones de Negre n.1, Pl. 2, 08930 Barcelona, Spain
| | - Oleksandr Dobrozhan
- Catalonia Energy Research Institute - IREC, Sant Adria de Besos , Jardins de les Dones de Negre n.1, Pl. 2, 08930 Barcelona, Spain.,Department of Electronics and Computing, Sumy State University , 2 Rymskogo-Korsakova st., 40007 Sumy, Ukraine
| | - Ajay Singh
- Materials Physics & Applications Division: Center for Integrated Nanotechnologies, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Andreu Cabot
- Catalonia Energy Research Institute - IREC, Sant Adria de Besos , Jardins de les Dones de Negre n.1, Pl. 2, 08930 Barcelona, Spain.,ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Kevin M Ryan
- Department of Chemical Sciences and Bernal Institute, University of Limerick , Limerick, Ireland
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43
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Sanz B, von Bilderling C, Tuninetti JS, Pietrasanta L, Mijangos C, Longo GS, Azzaroni O, Giussi JM. Thermally-induced softening of PNIPAm-based nanopillar arrays. SOFT MATTER 2017; 13:2453-2464. [PMID: 28287232 DOI: 10.1039/c7sm00206h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The surface properties of soft nanostructured hydrogels are crucial in the design of responsive materials that can be used as platforms to create adaptive devices. The lower critical solution temperature (LCST) of thermo-responsive hydrogels such as poly(N-isopropylacrylamide) (PNIPAm) can be modified by introducing a hydrophilic monomer to create a wide range of thermo-responsive micro-/nano-structures in a large temperature range. Using surface initiation atom-transfer radical polymerization in synthesized anodized aluminum oxide templates, we designed, fabricated, and characterized thermo-responsive nanopillars based on PNIPAm hydrogels with tunable mechanical properties by incorporating acrylamide monomers (AAm). In addition to their LCST, the incorporation of a hydrophilic entity in the nanopillars based on PNIPAm has abruptly changed the topological and mechanical properties of our system. To gain an insight into the mechanical properties of the nanostructure, its hydrophilic/hydrophobic behavior and topological characteristics, atomic force microscopy, molecular dynamics simulations and water contact angle studies were combined. When changing the nanopillar composition, a significant and opposite variation was observed in their mechanical properties. As temperature increased above the LCST, the stiffness of PNIPAm nanopillars, as expected, did so too, in contrast to the stiffness of PNIPAm-AAm nanopillars that decreased significantly. The molecular dynamics simulations proposed a local molecular rearrangement in our nanosystems at the LCST. The local aggregation of NIPAm segments near the center of the nanopillars displaced the hydrophilic AAm units towards the surface of the structure leading to contact with the aqueous environment. This behavior was confirmed via contact angle measurements below and above the LCST.
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Affiliation(s)
- Belén Sanz
- Instituto de Ciencia y Tecnología de Polímeros, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Catalina von Bilderling
- Instituto de Física de Buenos Aires (IFIBA-CONICET) and Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA Buenos Aires, Argentina
| | - Jimena S Tuninetti
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Departamento de Química - Facultad de Ciencias Exactas - Universidad Nacional de La Plata - CONICET, 1900 La Plata, Argentina.
| | - Lía Pietrasanta
- Instituto de Física de Buenos Aires (IFIBA-CONICET) and Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA Buenos Aires, Argentina and Centro de Microscopías Avanzadas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA Buenos Aires, Argentina
| | - Carmen Mijangos
- Instituto de Ciencia y Tecnología de Polímeros, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Gabriel S Longo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Departamento de Química - Facultad de Ciencias Exactas - Universidad Nacional de La Plata - CONICET, 1900 La Plata, Argentina.
| | - Omar Azzaroni
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Departamento de Química - Facultad de Ciencias Exactas - Universidad Nacional de La Plata - CONICET, 1900 La Plata, Argentina.
| | - Juan M Giussi
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Departamento de Química - Facultad de Ciencias Exactas - Universidad Nacional de La Plata - CONICET, 1900 La Plata, Argentina.
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44
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Yarysheva AY, Bagrov DV, Bakirov VAV, Tarasevich BN, Grohovskaya TE, Yarysheva LM, Chvalun SN, Volynskii AL. Polyethylene–Poly(ethylene oxide) Hybrid Films Obtained by Crazing and Their Structural Peculiarities. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02512] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Alena Y. Yarysheva
- Faculty
of Chemistry, Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russia
| | - Dmitry V. Bagrov
- Faculty
of Biology, Lomonosov Moscow State University, Leninskie gory 1-12, Moscow 119991, Russia
| | - V. Artem V. Bakirov
- National Research Center Kurchatov Institute, Akademika Kurchatova, pl. 1, 123182, Moscow, Russia
- Institute of Synthetic Polymer Materials RAS, Profsoyuznaya st. 70, 117393, Moscow, Russia
| | - Boris N. Tarasevich
- Faculty
of Chemistry, Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russia
| | - Tatiana E. Grohovskaya
- Faculty
of Chemistry, Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russia
| | - Larisa M. Yarysheva
- Faculty
of Chemistry, Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russia
| | - Sergey N. Chvalun
- National Research Center Kurchatov Institute, Akademika Kurchatova, pl. 1, 123182, Moscow, Russia
- Institute of Synthetic Polymer Materials RAS, Profsoyuznaya st. 70, 117393, Moscow, Russia
| | - Aleksandr L. Volynskii
- Faculty
of Chemistry, Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russia
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45
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Hao Q, Huang H, Fan X, Hou X, Yin Y, Li W, Si L, Nan H, Wang H, Mei Y, Qiu T, Chu PK. Facile design of ultra-thin anodic aluminum oxide membranes for the fabrication of plasmonic nanoarrays. NANOTECHNOLOGY 2017; 28:105301. [PMID: 28139464 DOI: 10.1088/1361-6528/aa596d] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Ultra-thin anodic aluminum oxide (AAO) membranes are efficient templates for the fabrication of patterned nanostructures. Herein, a three-step etching method to control the morphology of AAO is described. The morphological evolution of the AAO during phosphoric acid etching is systematically investigated and a nonlinear growth mechanism during unsteady-state anodization is revealed. The thickness of the AAO can be quantitatively controlled from ∼100 nm to several micrometers while maintaining the tunablity of the pore diameter. The AAO membranes are robust and readily transferable to different types of substrates to prepare patterned plasmonic nanoarrays such as nanoislands, nanoclusters, ultra-small nanodots, and core-satellite superstructures. The localized surface plasmon resonance from these nanostructures can be easily tuned by adjusting the morphology of the AAO template. The custom AAO template provides a platform for the fabrication of low-cost and large-scale functional nanoarrays suitable for fundamental studies as well as applications including biochemical sensing, imaging, photocatalysis, and photovoltaics.
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Affiliation(s)
- Qi Hao
- Department of Physics, Southeast University, Nanjing 211189, People's Republic of China. Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, People's Republic of China
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46
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Chen XZ, Hoop M, Shamsudhin N, Huang T, Özkale B, Li Q, Siringil E, Mushtaq F, Di Tizio L, Nelson BJ, Pané S. Hybrid Magnetoelectric Nanowires for Nanorobotic Applications: Fabrication, Magnetoelectric Coupling, and Magnetically Assisted In Vitro Targeted Drug Delivery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1605458. [PMID: 27943524 DOI: 10.1002/adma.201605458] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/04/2016] [Indexed: 05/18/2023]
Abstract
An FeGa@P(VDF-TrFE) wire-shaped magnetoelectric nanorobot is designed and fabricated to demonstrate a proof-of-concept integrated device, which features wireless locomotion and on-site triggered therapeutics with a single external power source (i.e., a magnetic field). The device can be precisely steered toward a targeted location wirelessly by rotating magnetic fields and perform on-demand magnetoelectrically assisted drug release to kill cancer cells.
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Affiliation(s)
- Xiang-Zhong Chen
- Multi-Scale Robotics Lab (MSRL), Institute of Robotics & Intelligent Systems (IRIS), ETH Zurich, Zurich, 8092, Switzerland
| | - Marcus Hoop
- Multi-Scale Robotics Lab (MSRL), Institute of Robotics & Intelligent Systems (IRIS), ETH Zurich, Zurich, 8092, Switzerland
| | - Naveen Shamsudhin
- Multi-Scale Robotics Lab (MSRL), Institute of Robotics & Intelligent Systems (IRIS), ETH Zurich, Zurich, 8092, Switzerland
| | - Tianyun Huang
- Multi-Scale Robotics Lab (MSRL), Institute of Robotics & Intelligent Systems (IRIS), ETH Zurich, Zurich, 8092, Switzerland
| | - Berna Özkale
- Multi-Scale Robotics Lab (MSRL), Institute of Robotics & Intelligent Systems (IRIS), ETH Zurich, Zurich, 8092, Switzerland
| | - Qian Li
- Center for Nanophase Materials Sciences and Institute for Functional Imaging of Materials, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Erdem Siringil
- Multi-Scale Robotics Lab (MSRL), Institute of Robotics & Intelligent Systems (IRIS), ETH Zurich, Zurich, 8092, Switzerland
| | - Fajer Mushtaq
- Multi-Scale Robotics Lab (MSRL), Institute of Robotics & Intelligent Systems (IRIS), ETH Zurich, Zurich, 8092, Switzerland
| | - Luca Di Tizio
- Multi-Scale Robotics Lab (MSRL), Institute of Robotics & Intelligent Systems (IRIS), ETH Zurich, Zurich, 8092, Switzerland
| | - Bradley J Nelson
- Multi-Scale Robotics Lab (MSRL), Institute of Robotics & Intelligent Systems (IRIS), ETH Zurich, Zurich, 8092, Switzerland
| | - Salvador Pané
- Multi-Scale Robotics Lab (MSRL), Institute of Robotics & Intelligent Systems (IRIS), ETH Zurich, Zurich, 8092, Switzerland
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47
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Geometrical effects during crystallization under confinement in electrospun core-shell fibers. DSC study of crystallization kinetics. POLYMER 2017. [DOI: 10.1016/j.polymer.2016.12.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Cheng MH, Ko HW, Chung PY, Chang CW, Chen JT. Morphology control of three-dimensional nanostructures in porous templates using lamella-forming block copolymers and solvent vapors. SOFT MATTER 2016; 12:8087-8092. [PMID: 27714291 DOI: 10.1039/c6sm01157h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The microphase separation behavior of block copolymers confined in cylindrical nanopores has been extensively investigated. Recently, the solvent-annealing-induced nanowetting in templates (SAINT) method has been demonstrated to be a versatile approach for the infiltration of block copolymers into the nanopores of porous templates. The function of the annealing solvents, however, is still not well understood, especially in the morphology control of the fabricated block copolymer nanostructures. In this work, we elucidate the function of the annealing solvents in the SAINT method using a lamella-forming block copolymer, polystyrene-block-polydimethylsiloxane (PS-b-PDMS), and anodic aluminum oxide (AAO) templates. By changing the composition of the annealing solvents, different morphologies such as the concentric lamellar morphology, the winding cylinder morphology, and the irregular hybrid morphology are observed, mainly caused by the annealing-solvent-induced volume change. The morphology of the block copolymer nanostructures can be further confirmed using an HF solution to remove the PDMS domain selectively.
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Affiliation(s)
- Ming-Hsiang Cheng
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30010.
| | - Hao-Wen Ko
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30010.
| | - Pei-Yun Chung
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30010.
| | - Chun-Wei Chang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30010.
| | - Jiun-Tai Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30010.
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Muanchan P, Suzuki S, Kyotani T, Ito H. One-dimensional polymer nanofiber arrays with high aspect ratio obtained by thermal nanoimprint method. POLYM ENG SCI 2016. [DOI: 10.1002/pen.24403] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Paritat Muanchan
- Research Center for GREEN Materials and Advanced Processing (GMAP), Graduate School of Science and Engineering; Yamagata University 4-3-16 Jonan; Yonezawa Yamagata 992-8510 Japan
| | - Shohei Suzuki
- Research Center for GREEN Materials and Advanced Processing (GMAP), Graduate School of Science and Engineering; Yamagata University 4-3-16 Jonan; Yonezawa Yamagata 992-8510 Japan
| | - Takashi Kyotani
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University 2-1-1, Katahira; Aoba-Ku Sendai 980-8577 Japan
| | - Hiroshi Ito
- Research Center for GREEN Materials and Advanced Processing (GMAP), Graduate School of Science and Engineering; Yamagata University 4-3-16 Jonan; Yonezawa Yamagata 992-8510 Japan
- Graduate School of Organic Materials Science; Yamagata University 4-3-16 Jonan; Yonezawa Yamagata 992-8510 Japan
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50
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Chu CW, Jeng KS, Chi MH, Tsai CC, Cheng MH, Chen JT. Confinement Effects on the Optical Properties and Chain Conformations of Poly(9,9-di-n
-octylfluorene-alt
-benzothiadiazole) Nanotubes. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600178] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Chien-Wei Chu
- Department of Applied Chemistry; National Chiao Tung University; 1001 Ta Hsueh Road Hsinchu 30010 Taiwan
| | - Kai-Sheng Jeng
- Department of Applied Chemistry; National Chiao Tung University; 1001 Ta Hsueh Road Hsinchu 30010 Taiwan
| | - Mu-Huan Chi
- Department of Applied Chemistry; National Chiao Tung University; 1001 Ta Hsueh Road Hsinchu 30010 Taiwan
| | - Chia-Chan Tsai
- Department of Applied Chemistry; National Chiao Tung University; 1001 Ta Hsueh Road Hsinchu 30010 Taiwan
| | - Ming-Hsiang Cheng
- Department of Applied Chemistry; National Chiao Tung University; 1001 Ta Hsueh Road Hsinchu 30010 Taiwan
| | - Jiun-Tai Chen
- Department of Applied Chemistry; National Chiao Tung University; 1001 Ta Hsueh Road Hsinchu 30010 Taiwan
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