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Volta TT, Walters SN, Martin CR. Potentiometric Studies on Ion-Transport Selectivity in Charged Gold Nanotubes. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1209. [PMID: 39057885 PMCID: PMC11280230 DOI: 10.3390/nano14141209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/03/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024]
Abstract
Under ideal conditions, nanotubes with a fixed negative tube-wall charge will reject anions and transport-only cations. Because many proposed nanofluidic devices are optimized in this ideally cation-permselective state, it is important to know the experimental conditions that produce ideal responses. A parameter called Ccrit, the highest salt concentration in a contacting solution that still produces ideal cation permselectivity, is of particular importance. Pioneering potentiometric studies on gold nanotubes were interpreted using an electrostatic model that states that Ccrit should occur when the Debye length in the contacting salt solution becomes equivalent to the tube radius. Since this "double-layer overlap model" (DLOM), treats all same-charge ions as identical point charges, it predicts that all same-charged cations should produce the same Ccrit. However, the effect of cation on Ccrit in gold nanotubes was never investigated. This knowledge gap has become important because recent studies with a polymeric cation-permselective nanopore membrane showed that DLOM failed for every cation studied. To resolve this issue, we conducted potentiometric studies on the effect of salt cation on Ccrit for a 10 nm diameter gold nanotube membrane. Ccrit for all cations studied were, within experimental error, the same and identical, with values predicted by DLOM. The reason DLOM prevailed for the gold nanotubes but failed for the polymeric nanopores stems from the chemical difference between the fixed negative charges of these two membranes.
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Affiliation(s)
| | | | - Charles R. Martin
- Department of Chemistry, University of Florida, Gainesville, FL 32611-7200, USA
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2
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Zhang Y, Qian Y, Wen Y, Gui Q, Xu Y, Lu X, Zhang L, Song W. In Situ Preparation of Chlorine-Regenerable Antimicrobial Polymer Molecular Sieve Membranes. Molecules 2024; 29:2980. [PMID: 38998932 PMCID: PMC11243515 DOI: 10.3390/molecules29132980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/11/2024] [Accepted: 06/20/2024] [Indexed: 07/14/2024] Open
Abstract
Microbial contamination has profoundly impacted human health, and the effective eradication of widespread microbial issues is essential for addressing serious hygiene concerns. Taking polystyrene (PS) membrane as an example, we herein developed report a robust strategy for the in situ preparation of chlorine-regenerable antimicrobial polymer molecular sieve membranes through combining post-crosslinking and nucleophilic substitution reaction. The cross-linking PS membranes underwent a reaction with 5,5-dimethylhydantoin (DMH), leading to the formation of polymeric N-halamine precursors (PS-DMH). These hydantoinyl groups within PS-DMH were then efficiently converted into biocidal N-halamine structures (PS-DMH-Cl) via a simple chlorination process. ATR-FTIR and XPS spectra were recorded to confirm the chemical composition of the as-prepared PS-DMH-Cl membranes. SEM analyses revealed that the chlorinated PS-DMH-Cl membranes displayed a rough surface with a multitude of humps. The effect of chlorination temperature and time on the oxidative chlorine content in the PS-DMH-Cl membranes was systematically studied. The antimicrobial assays demonstrated that the PS-DMH-Cl membranes could achieve a 6-log inactivation of E. coli and S. aureus within just 4 min of contact time. Additionally, the resulting PS-DMH-Cl membranes exhibited excellent stability and regenerability of the oxidative chlorine content.
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Affiliation(s)
- Yu Zhang
- Shanghai Key Laboratory of Molecular Imaging, School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China
| | - Yiduo Qian
- Shanghai Key Laboratory of Molecular Imaging, School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Yuheng Wen
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Qiudi Gui
- Shanghai Key Laboratory of Molecular Imaging, School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Yixin Xu
- Shanghai Key Laboratory of Molecular Imaging, School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Xiuhong Lu
- Shanghai Key Laboratory of Molecular Imaging, School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Li Zhang
- Shanghai Key Laboratory of Molecular Imaging, School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Wenliang Song
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
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Volta TT, Walters SN, Martin CR. Effect of Organic Cation Adsorption on Ion-Transport Selectivity in a Cation-Permselective Nanopore Membrane. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:10825-10833. [PMID: 38700247 DOI: 10.1021/acs.langmuir.4c01276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
A key knowledge gap in the emerging field of nanofluidics concerns how the ionic composition and ion-transport properties of a nanoconfined solution differ from those of a contacting bulk solution. We and others have been using potentiometric concentration cells, where a nanopore or nanotube membrane separates salt solutions of differing concentrations to explore this issue. The membranes studied contained a fixed pore/tube wall anionic charge, which ideally would prohibit anions and salt from entering the pore/tube-confined solution. We have been investigating experimental conditions that allow for this ideally permselective cation state to be achieved. Results of potentiometric investigations of a polymeric nanopore membrane (10 ± 2 nm-diameter pores) with anionic charge due to carbonate are presented here. While studies of this type have been reported using alkaline metal and alkaline earth cations, there have been no analogous studies using organic cations. This paper uses a homologous series of tetraalkylammonium ions to address this knowledge gap. The key result is that, in contrast to the inorganic cations, the ideal cation-permselective state could not be obtained under any experimental conditions for the organic cations. We propose that this is because these hydrophobic cations adsorb onto the polymeric pore walls. This makes ideality impossible because each adsorbed alkylammonium must bring a charge-balancing anion, Cl-, with it into the nanopore solution. The alkylammonium adsorption that occurred was confirmed and quantified by using surface contact angle measurements.
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Affiliation(s)
- Thomas T Volta
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Stevie N Walters
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Charles R Martin
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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Grafia AL, Barbosa SE. Polyethylene Film Surface Modification via Benzoic Acid Grafting. Polymers (Basel) 2024; 16:1291. [PMID: 38732764 PMCID: PMC11085461 DOI: 10.3390/polym16091291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/15/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
A polyethylene (PE) film surface modification method is proposed via benzoic acid (BA) alkylation grafting to improve the surface affinity to polar substances. The procedure involves sequentially spraying AlCl3 and BA onto the heat-softened PE surface. The occurrence of the alkylation reaction was evaluated through comparative chemical, morphological, and thermal analyses. It was demonstrated that the grafting reaction of BA onto the PE film surface took place, limited to the surface layer, while preserving the bulk properties of PE. The reaction resulted in the formation of aluminum benzoate complexes, which improved the surface affinity to polar compounds. The impact of grafting on the surface properties of PE was further assessed by comparing the behavior of PE films treated with BA and untreated PE films when painted with watercolors. The PE film grafted with BA exhibited increased affinity towards watercolors, providing strong evidence of a change in surface polarity from hydrophobic to hydrophilic. These findings indicate that the proposed methodology effectively renders the PE surface paintable, even with non-toxic water-based inks, making it suitable for applications such as packaging.
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Affiliation(s)
- Ana Luisa Grafia
- Planta Piloto de Ingeniería Química, PLAPIQUI (UNS-CONICET), Bahía Blanca 8000, Argentina;
- Departamento de Ingeniería Química, Universidad Nacional del Sur (UNS), Bahía Blanca 8000, Argentina
| | - Silvia Elena Barbosa
- Planta Piloto de Ingeniería Química, PLAPIQUI (UNS-CONICET), Bahía Blanca 8000, Argentina;
- Departamento de Ingeniería Química, Universidad Nacional del Sur (UNS), Bahía Blanca 8000, Argentina
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Özmeral N, Kocaman S, Soydal U, Ahmetli G. Polystyrene waste‐modified epoxy/nanoclay and hybrid composite coatings. J Appl Polym Sci 2022. [DOI: 10.1002/app.53504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Nimet Özmeral
- Department of Chemical Engineering, Faculty of Engineering and Natural Sciences Konya Technical University Konya Turkey
| | - Suheyla Kocaman
- Department of Chemical Engineering, Faculty of Engineering and Natural Sciences Konya Technical University Konya Turkey
| | - Ulku Soydal
- Karapınar Aydoğanlar Vocational School Selcuk University Konya Turkey
- Department of Biotechnology, Faculty of Science Selcuk University Konya Turkey
| | - Gulnare Ahmetli
- Department of Chemical Engineering, Faculty of Engineering and Natural Sciences Konya Technical University Konya Turkey
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Zajaczkowska H, Veith L, Waliszewski W, Bartkiewicz MA, Borkowski M, Sleczkowski P, Ulanski J, Graczykowski B, Blom PWM, Pisula W, Marszalek T. Self-Aligned Bilayers for Flexible Free-Standing Organic Field-Effect Transistors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:59012-59022. [PMID: 34866376 PMCID: PMC8678985 DOI: 10.1021/acsami.1c15208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 11/25/2021] [Indexed: 06/13/2023]
Abstract
Free-standing and flexible field-effect transistors based on 6,13-bis(triisopropylsilylethynyl)-pentacene (TIPS-pentacene)/polystyrene bilayers are obtained by well-controlled phase separation of both components. The phase separation is induced by solvent vapor annealing of initially amorphous blend films, leading to crystallization of TIPS-pentacene as the top layer. The crystallinity and blend morphology strongly depend on the molecular weight of polystyrene, and under optimized conditions, distinct phase separation with a well-defined and trap-free interface between both fractions is achieved. Due to the distinct bilayer morphology, the resulting flexible field-effect transistors reveal similar charge carrier mobilities as rigid devices and additionally pronounced environmental and bias stress stabilities. The performance of the flexible transistors remains stable up to a strain of 1.8%, while above this deformation, a close relation between current and strain is observed that is required for applications in strain sensors.
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Affiliation(s)
- Hanna Zajaczkowska
- Department
of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Lothar Veith
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Witold Waliszewski
- Department
of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Malgorzata A. Bartkiewicz
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Faculty
of Physics, Adam Mickiewicz University, Uniwersytetu Poznanskiego 2, 61-614 Poznan, Poland
| | - Michal Borkowski
- Department
of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Piotr Sleczkowski
- Department
of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Jacek Ulanski
- Department
of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Bartlomiej Graczykowski
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Faculty
of Physics, Adam Mickiewicz University, Uniwersytetu Poznanskiego 2, 61-614 Poznan, Poland
| | - Paul W. M. Blom
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Wojciech Pisula
- Department
of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Tomasz Marszalek
- Department
of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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7
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Acik G. Study on the Synthesis and Characterization of Antibacterial Polystyrenes. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2019. [DOI: 10.18596/jotcsa.547471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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8
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Bhushan B. Lessons from nature for green science and technology: an overview and bioinspired superliquiphobic/philic surfaces. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2019; 377:20180274. [PMID: 30967074 DOI: 10.1098/rsta.2018.0274] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/30/2018] [Indexed: 06/09/2023]
Abstract
Nature has developed materials, objects and processes that function from the macroscale to the nanoscale. The emerging field of biomimetics allows one to mimic biology or nature to develop nanomaterials, nanodevices and processes which provide desirable properties. The biologically inspired materials and structured surfaces are being explored for various commercial applications. These should have minimum human impact on the environment, leading to eco-friendly or green science and technology. There are a large number of flora and fauna including bacteria, plants, land and aquatic animals, and seashells with properties of commercial interest. The paper presents an overview of the general field of biomimetics followed by a detailed overview of mechanisms, fabrication techniques and characterization of superliquiphobic/philic surfaces and their applications. This article is part of the theme issue 'Bioinspired materials and surfaces for green science and technology'.
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Affiliation(s)
- Bharat Bhushan
- Nanoprobe Laboratory for Bio- and Nanotechnology and Biomimetics, The Ohio State University , Columbus, OH 43210-1142 , USA
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9
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Bhushan B, Martin S. Substrate-independent superliquiphobic coatings for water, oil, and surfactant repellency: An overview. J Colloid Interface Sci 2018; 526:90-105. [DOI: 10.1016/j.jcis.2018.04.103] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/26/2018] [Accepted: 04/26/2018] [Indexed: 11/26/2022]
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10
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Adhesion of liquid food to packaging surfaces: Mechanisms, test methods, influencing factors and anti-adhesion methods. J FOOD ENG 2018. [DOI: 10.1016/j.jfoodeng.2018.02.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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11
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Marcasuzaa P, Pearson S, Bosson K, Pessoni L, Dupin JC, Billon L. Reactive nano-patterns in triple structured bio-inspired honeycomb films as a clickable platform. Chem Commun (Camb) 2018; 54:13068-13071. [DOI: 10.1039/c8cc05333b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Towards unprecedented triple structured bio-inspired honeycomb film by selfassembly of a functional block copolymer during breath figure templating as a nano-patterned clickable platform.
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Affiliation(s)
- Pierre Marcasuzaa
- Université de Pau & Pays Adour, CNRS, IPREM UMR 5254
- Pau F-64053
- France
- Bio-inspired Materials Group
- Functionality & Self-assembly, Université de Pau & Pays Adour
| | - Samuel Pearson
- Université de Pau & Pays Adour, CNRS, IPREM UMR 5254
- Pau F-64053
- France
- Bio-inspired Materials Group
- Functionality & Self-assembly, Université de Pau & Pays Adour
| | - Karell Bosson
- Université de Pau & Pays Adour, CNRS, IPREM UMR 5254
- Pau F-64053
- France
- Bio-inspired Materials Group
- Functionality & Self-assembly, Université de Pau & Pays Adour
| | - Laurence Pessoni
- Université de Pau & Pays Adour, CNRS, IPREM UMR 5254
- Pau F-64053
- France
- Bio-inspired Materials Group
- Functionality & Self-assembly, Université de Pau & Pays Adour
| | | | - Laurent Billon
- Université de Pau & Pays Adour, CNRS, IPREM UMR 5254
- Pau F-64053
- France
- Bio-inspired Materials Group
- Functionality & Self-assembly, Université de Pau & Pays Adour
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12
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Adaptable Fabrication Techniques for Mechanically Durable Superliquiphobic/philic Surfaces. Biomimetics (Basel) 2018. [DOI: 10.1007/978-3-319-71676-3_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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13
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Bhushan B. Strategies for Superliquiphobic/Philic Surfaces. Biomimetics (Basel) 2018. [DOI: 10.1007/978-3-319-71676-3_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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