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Musarurwa H, Tavengwa NT. Thermo-responsive polymers and advances in their applications in separation science. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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2
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Thiele S, Andersson J, Dahlin A, Hailes RLN. Tuning the Thermoresponsive Behavior of Surface-Attached PNIPAM Networks: Varying the Crosslinker Content in SI-ATRP. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:3391-3398. [PMID: 33719454 PMCID: PMC8041372 DOI: 10.1021/acs.langmuir.0c03545] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/24/2021] [Indexed: 06/12/2023]
Abstract
The synthesis and thermoresponsive properties of surface-attached poly(N-isopropylacrylamide)-co-N,N'-methylene bisacrylamide (PNIPAM-co-MBAM) networks are investigated. The networks are formed via SI-ARGET-ATRP ("grafting-from") on thiol-based initiator-functionalized gold films. This method is reliable, well controlled, fast, and applicable to patterned surfaces (e.g., nanopores) for networks with dry thicknesses >20 nm. Surface-attached PNIPAM-co-MBAM gels are swollen below their volume phase transition temperature but above collapse without complete expulsion of water (retain ∼50 vol %). The swelling/collapse transition is studied using complementary SPR and QCMD techniques. The ratio between swollen and collapsed heights characterizes the thermoresponsive behavior and is shown to not depend on network height but to vary with MBAM content. The higher the proportion of the crosslinker, the lower the magnitude of the phase transition, until all responsiveness is lost at 5 mol % MBAM. The temperature range of the transition is broadened for more crosslinked PNIPAM-co-MBAM gels but remains centered around 32 °C. Upon reswelling, less crosslinked networks display sharp transitions, while for those containing ≥3 mol % MBAM, transitions remain broad. This tunable behavior persists for gels on nanostructured gold surfaces. Investigating PNIPAM-co-MBAM networks on gold plasmonic nanowell arrays is a starting point for expanding their scope as thermo-controlled nanoactuators.
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Li N, Ye Q, Zhang K, Yan H, Shen C, Wei B, Xie K. Normalized Lithium Growth from the Nucleation Stage for Dendrite-Free Lithium Metal Anodes. Angew Chem Int Ed Engl 2019; 58:18246-18251. [PMID: 31589355 DOI: 10.1002/anie.201911267] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Indexed: 11/08/2022]
Abstract
Inducing uniform deposition of lithium from the stage of metal crystallization nucleation is of vital importance to achieve dendrite-free lithium anodes. Herein, using experiments and simulation, homogenization of Li nucleation and normalization of Li growth can be achieved on PNIPAM polymer brushes with lithiophilic functional groups modified Cu substrates. The lithiophilic functional groups of amide O can homogenize ion mass transfer and induce the uniform distribution of Li nucleation sites. What is more, the ultra-small space between each brush can act as the channels for Li transportation and normalization growth. Owing to the synergistic effect of homogenization and normalization of electrodeposited Li, the obtained planar columnar Li anode exhibits excellent cycle stability at an ultra-high current density of 20 mA cm-2 .
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Affiliation(s)
- Nan Li
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, 710072, P. R. China
| | - Qian Ye
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, 710072, P. R. China
| | - Kun Zhang
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, 710072, P. R. China
| | - Huibo Yan
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, 710072, P. R. China
| | - Chao Shen
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, 710072, P. R. China
| | - Bingqing Wei
- Department of Mechanical Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Keyu Xie
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, 710072, P. R. China
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Li N, Ye Q, Zhang K, Yan H, Shen C, Wei B, Xie K. Normalized Lithium Growth from the Nucleation Stage for Dendrite‐Free Lithium Metal Anodes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201911267] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Nan Li
- State Key Laboratory of Solidification ProcessingCenter for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU) Xi'an 710072 P. R. China
| | - Qian Ye
- State Key Laboratory of Solidification ProcessingCenter for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU) Xi'an 710072 P. R. China
| | - Kun Zhang
- State Key Laboratory of Solidification ProcessingCenter for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU) Xi'an 710072 P. R. China
| | - Huibo Yan
- State Key Laboratory of Solidification ProcessingCenter for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU) Xi'an 710072 P. R. China
| | - Chao Shen
- State Key Laboratory of Solidification ProcessingCenter for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU) Xi'an 710072 P. R. China
| | - Bingqing Wei
- Department of Mechanical EngineeringUniversity of Delaware Newark DE 19716 USA
| | - Keyu Xie
- State Key Laboratory of Solidification ProcessingCenter for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU) Xi'an 710072 P. R. China
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5
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Wu S, Zhang D, Bai J, Du W, Duan Y, Liu Y, Zou X, Ouyang H, Gao C. Temperature-Gating Titania Nanotubes Regulate Migration of Endothelial Cells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1254-1266. [PMID: 30525390 DOI: 10.1021/acsami.8b17530] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
External stimuli-responsive biomaterials represent a type of promising candidates for addressing the complexity of biological systems. In this study, a platform based on the combination of temperature-sensitive polymers and a nanotube array was developed for loading sphingosine 1-phosphate (S1P) and regulating the migration of endothelial cells (ECs) at desired conditions. The localized release dosage of effectors could be controlled by the change of environmental temperature. At a culture temperature above the lower critical solution temperature, the polymer "gatekeeper" with a collapsed conformation allowed the release of S1P, which in turn enhanced the migration of ECs. The migration rate of single cells was significantly enhanced up to 58.5%, and the collective migration distance was also promoted to 25.1% at 24 h and 33.2% at 48 h. The cell morphology, focal adhesion, organization of cytoskeleton, and expression of genes and proteins related to migration were studied to unveil the intrinsic mechanisms. The cell mobility was regulated by the released S1P, which would bind with the S1PR1 receptor on the cell membrane and trigger the Rho GTPase pathway.
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Affiliation(s)
| | | | | | | | | | | | | | - Hongwei Ouyang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine , Zhejiang University , Hangzhou 310058 , China
| | - Changyou Gao
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine , Zhejiang University , Hangzhou 310058 , China
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6
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Prönnecke C, Staude M, Frank R, Jahnke HG, Robitzki AA. Electrically Switchable Monostable Actuatoric Polymer-Based Nanovalve Arrays with a Long-Term Stability. NANO LETTERS 2018; 18:6375-6380. [PMID: 30203982 DOI: 10.1021/acs.nanolett.8b02738] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Here we present a novel electrically switchable nanovalve array based on an intrinsic conductive polymer that has the capabilities to change its volume depending on its redox state. The polymer is created by anodic deposition of a sodium dodecylbenzenesulfonate (DBS)-doped polypyrrole (PPy). Optimization of the DBS-doped PPy layers revealed an actuatoric performance of up to 10% out of plane volume change. More interestingly, the electrochemical characterization revealed an actuatoric monostable polymer that could be used to fabricate nanovalve arrays that have a native opened state when no potential is applied and that can be closed when a reductive potential is applied. As a proof of concept, Atto488-labeled biotin (Biotin-Atto488) was used as a model compound and defined nanovalve arrays with nanopores in the range of 10 nm in diameter (opened state) were fabricated. Afterward, we were able to successfully prove the functionality of our nanovalve array by monitoring the flow-through rates of the Biotin-Atto488. More strikingly, we could demonstrate for the first time the robust and long-term stability of our nanovalve array without any performance loss for at least 72 h and retention capabilities of up to 90%. Furthermore, the demonstrated long-term stability was achieved under biocompatible conditions without the need of toxic dopant supplementation of the flow-through solution. Thus, our novel functional long-term stable nanovalve array offers the capabilities for practical applications.
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Affiliation(s)
- Christoph Prönnecke
- Centre for Biotechnology and Biomedicine (BBZ) , Molecular Biological-Biochemical Processing Technology , Deutscher Platz 5 , Leipzig D-04103 , Germany
| | - Marek Staude
- Centre for Biotechnology and Biomedicine (BBZ) , Molecular Biological-Biochemical Processing Technology , Deutscher Platz 5 , Leipzig D-04103 , Germany
| | - Ronny Frank
- Centre for Biotechnology and Biomedicine (BBZ) , Molecular Biological-Biochemical Processing Technology , Deutscher Platz 5 , Leipzig D-04103 , Germany
| | - Heinz-Georg Jahnke
- Centre for Biotechnology and Biomedicine (BBZ) , Molecular Biological-Biochemical Processing Technology , Deutscher Platz 5 , Leipzig D-04103 , Germany
| | - Andrea A Robitzki
- Centre for Biotechnology and Biomedicine (BBZ) , Molecular Biological-Biochemical Processing Technology , Deutscher Platz 5 , Leipzig D-04103 , Germany
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7
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Poly(N-isopropylacrylamide) grafting solution parameters for controlling temperature responsiveness in PET membranes fabricated using 248 nm KrF excimer laser. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.04.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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8
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Qin Y, Yang H, Xu Z, Li F. Surface Modification of Polyacrylonitrile Membrane by Chemical Reaction and Physical Coating: Comparison between Static and Pore-Flowing Procedures. ACS OMEGA 2018; 3:4231-4241. [PMID: 31458656 PMCID: PMC6641343 DOI: 10.1021/acsomega.7b02094] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Accepted: 04/02/2018] [Indexed: 05/29/2023]
Abstract
The influences of static and pore-flowing procedures on the surface modification of a polyacrylonitrile (PAN) ultrafiltration membrane through chemical reaction and physical coating were investigated in detail. For chemical modification by ethanolamine, a membrane modified by the pore-flowing procedure showed a higher flux and different morphology. The reasons were explained by two effects: the pore-flowing resistance to the random thermal motion of PAN at high temperatures and different reaction kinetics related to the reactant concentration profile on the interface between the membrane and reaction solution and the kinetic property of the fluid (driving force and miscibility) and reaction (time and rate). For physical coating modification, a dense and flat layer via a loose and random layer was formed during the pore-flowing process and static process, which changed the flux and antifouling property of the membrane. The membrane prepared by dead-end filtration showed the best trade-off between the flux and antifouling property. Overall, the procedure kinetics plays an important role in the optimization of membrane modification.
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Lee BY, Kim J, Kim WJ, Kim JK. Dual functional membrane capable of both visual sensing and blocking of waterborne virus. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.10.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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10
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Yang D, Lee JS, Choi CK, Lee HP, Cho SW, Ryu W. Microchannel system for rate-controlled, sequential, and pH-responsive drug delivery. Acta Biomater 2018; 68:249-260. [PMID: 29269333 DOI: 10.1016/j.actbio.2017.12.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 11/22/2017] [Accepted: 12/11/2017] [Indexed: 01/06/2023]
Abstract
Controlled delivery of drug at a constant rate, in a sequential order, or responsive to environment conditions has been pursued for a long time to enhance the efficacy of therapeutic molecules and to minimize side effects of highly potent drugs. However, achieving such delicately-controlled delivery of a drug molecule is non-trivial and still remains a challenge. We propose the use of microchannels to control the rate, sequence, and pH-responsiveness of drug delivery for high precision and predictability. In this study, we introduce elementary drug delivery units consisting of micro-reservoirs and microchannels that have variations in their lengths, widths, numbers, and straightness. The release study demonstrates that the release rates of model drugs can be modulated by the design of microchannels. Finite element modeling of drug release predicts the performance of the drug delivery units with high accuracy. The possibility of sequential drug delivery is also demonstrated using biodegradable polymer plug in microchannels. Finally, pH-responsive delivery of drugs in microfluidic units is also discussed and demonstrated via cell viability tests. STATEMENT OF SIGNIFICANCE In this work, we developed microchannel-based drug delivery devices whose release rate could be accurately calculated and controlled by design of microchannel geometry. Although there have been many advances in microfabricated drug delivery systems, in particular, reservoir-based systems, no systematic investigation has been made to utilize the release channels. In our work, an equivalent electrical circuit concept was applied to the microfluidic systems for more detailed design and analysis. A microfluidic channel was regarded as an electrical resistor; their diffusion/electrical flux could be tuned with geometric factors such as length, width, a number of channel/resistor and their connections. Furthermore, from delivery rate control using channel geometry, multifunctional channel-based release systems for sequential and pH-responsive were demonstrated.
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11
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Yin B, Xie W, Liang L, Deng Y, He S, He F, Zhou D, Tlili C, Wang D. Covalent Modification of Silicon Nitride Nanopore by Amphoteric Polylysine for Short DNA Detection. ACS OMEGA 2017; 2:7127-7135. [PMID: 31457292 PMCID: PMC6645049 DOI: 10.1021/acsomega.7b01245] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 10/06/2017] [Indexed: 05/11/2023]
Abstract
In this work, we demonstrate a chemical modification approach, by means of covalent-bonding amphoteric poly-l-lysine (PLL) on the interior nanopore surface, which could intensively protect the pore from etching when exposed in the electrolyte under various pH conditions (from pH 4 to 12). Nanopore was generated via simple current dielectric breakdown methodology, covalent modification was performed in three steps, and the functional nanopore was fully characterized in terms of chemical structure, hydrophilicity, and surface morphology. I-V curves were recorded under a broad range of pH stimuli to evaluate the stability of the chemical bonding layer; the plotted curves demonstrated that nanopore with a covalent bonding layer has good pH tolerance and showed apparent reversibility. In addition, we have also measured the conductance of modified nanopore with varied KCl concentration (from 0.1 mM to 1 M) at different pH conditions (pHs 5, 7, 9, and 11). The results suggested that the surface charge density does not fluctuate with variation in salt concentration, which inferred that the SiN x nanopore was fully covered by PLL. Moreover, the PLL functionalized nanopore has realized the detection of single-stranded DNA homopolymer translocation under bias voltage of 500 mV, and the 20 nt homopolymers could be evidently differentiated in terms of the current amplitude and dwell time at pHs 5, 8, and 11.
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Wang W, Milani AH, Cui Z, Zhu M, Saunders BR. Pickering Emulsions Stabilized by pH-Responsive Microgels and Their Scalable Transformation to Robust Submicrometer Colloidoisomes with Selective Permeability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:8192-8200. [PMID: 28749692 DOI: 10.1021/acs.langmuir.7b01618] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Colloidosomes are micrometer-sized hollow particles that have shells consisting of coagulated or fused colloid particles. While many large colloidosomes with sizes well above 1.0 μm have been prepared, there are fewer examples of submicrometer colloidosomes. Here, we establish a simple emulsion templating-based method for the preparation of robust submicrometer pH-responsive microgel colloidosomes. The colloidosomes are constructed from microgel particles based on ethyl acrylate and methacrylic acid with peripheral vinyl groups. The pH-responsive microgels acted as both a Pickering emulsion stabilizer and macro-cross-linker. The emulsion formation studies showed that the minimum droplet diameter was reached when the microgel particles were partially swollen. Microgel colloidosomes were prepared by covalently interlinking the microgels adsorbed at the oil-water interface using thermal free-radical coupling. The colloidosomes were prepared using a standard high-shear mixer with two different rotor sizes that corresponded to high shear (HS) and very high shear (VHS) mixing conditions. The latter enabled the construction of submicrometer pH-responsive microgel-colloidosomes on the gram scale. The colloidosomes swelled strongly when the pH increased to above 6.0. The colloidosomes were robust and showed no evidence of colloidosome breakup at high pH. The effect of solute size on shell permeation was studied using a range of FITC-dextran polymers, and size-selective permeation occurred. The average pore size of the VHS microgel-colloidosomes was estimated to be between 6.6 and 9.0 nm at pH 6.2. The microgel-colloidosome properties suggest that they have the potential for future applications in cosmetics, photonics, and delivery.
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Affiliation(s)
- Wenkai Wang
- Polymers and Composites Group, School of Materials, The University of Manchester , MSS Tower, Manchester M13 9PL, U.K
| | - Amir H Milani
- Polymers and Composites Group, School of Materials, The University of Manchester , MSS Tower, Manchester M13 9PL, U.K
| | - Zhengxing Cui
- Polymers and Composites Group, School of Materials, The University of Manchester , MSS Tower, Manchester M13 9PL, U.K
| | - Mingning Zhu
- Polymers and Composites Group, School of Materials, The University of Manchester , MSS Tower, Manchester M13 9PL, U.K
| | - Brian R Saunders
- Polymers and Composites Group, School of Materials, The University of Manchester , MSS Tower, Manchester M13 9PL, U.K
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Lee BY, Hyun S, Jeon G, Kim EY, Kim J, Kim WJ, Kim JK. Bioinspired Dual Stimuli-Responsive Membranous System with Multiple On-Off Gates. ACS APPLIED MATERIALS & INTERFACES 2016; 8:11758-11764. [PMID: 27089551 DOI: 10.1021/acsami.6b01788] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Stimuli-responsive polymers have been widely used for controlled release of several biomolecules. In general, a single stimulus among various stimuli, for instance, temperature, pH, or light, has been used for these polymers. Although some stimuli are applied together, one cannot control each stimulus independently at a given stimulus-responsive polymer. However, to mimic biological system like cell membrane, multiple on-off gates utilizing independent control of dual (or multiple) stimuli should be used. Here, we introduce a stimuli-responsive membrane controlled by two orthogonal stimuli. For this purpose, the top and the bottom parts of anodized aluminum oxide membrane walls are independently grafted by thermoresponsive poly(N-isopropylacrylamide) and pH-responsive poly(acrylic acid), respectively, by using surface-initiated atom transfer radical polymerization. The membrane clearly showed two independent on-off gates depending on temperature and pH. Furthermore, through light irradiation of two different wavelengths (near-infrared and ultraviolet), temperature and pH were also controlled independently and promptly. Thus, this membrane shows two independent on-off gating of the transport of a model biomolecule of fluorescein isothiocyanate-labeled bovine serum albumin. This strategy suggests the potential of independently modified membrane in layers as stimuli-responsive on-off gates for the application of artificial cell membrane.
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Affiliation(s)
- Bom-Yi Lee
- National Creative Research Center for Block Copolymer Self-Assembly and Department of Chemical Engineering and ‡Department of Chemistry, Pohang University of Science and Technology , 77 Cheongam-ro, Nam-gu, Pohang 790-784, Republic of Korea
| | - Seung Hyun
- National Creative Research Center for Block Copolymer Self-Assembly and Department of Chemical Engineering and ‡Department of Chemistry, Pohang University of Science and Technology , 77 Cheongam-ro, Nam-gu, Pohang 790-784, Republic of Korea
| | - Gumhye Jeon
- National Creative Research Center for Block Copolymer Self-Assembly and Department of Chemical Engineering and ‡Department of Chemistry, Pohang University of Science and Technology , 77 Cheongam-ro, Nam-gu, Pohang 790-784, Republic of Korea
| | - Eun Young Kim
- National Creative Research Center for Block Copolymer Self-Assembly and Department of Chemical Engineering and ‡Department of Chemistry, Pohang University of Science and Technology , 77 Cheongam-ro, Nam-gu, Pohang 790-784, Republic of Korea
| | - Jinhwan Kim
- National Creative Research Center for Block Copolymer Self-Assembly and Department of Chemical Engineering and ‡Department of Chemistry, Pohang University of Science and Technology , 77 Cheongam-ro, Nam-gu, Pohang 790-784, Republic of Korea
| | - Won Jong Kim
- National Creative Research Center for Block Copolymer Self-Assembly and Department of Chemical Engineering and ‡Department of Chemistry, Pohang University of Science and Technology , 77 Cheongam-ro, Nam-gu, Pohang 790-784, Republic of Korea
| | - Jin Kon Kim
- National Creative Research Center for Block Copolymer Self-Assembly and Department of Chemical Engineering and ‡Department of Chemistry, Pohang University of Science and Technology , 77 Cheongam-ro, Nam-gu, Pohang 790-784, Republic of Korea
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Wang Y, Lin H, Xiong Z, Wu Z, Yu X, Wang Y, Liu F. Investigation of abnormal thermoresponsive PVDF membranes on casting solution, membrane morphology and filtration performance. RSC Adv 2016. [DOI: 10.1039/c5ra28060e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A temperature sensitive casting solution of P(OEGMA-co-VTMOS) was prepared via an in situ polymerization method. Meanwhile, an interesting thermoresponsive PVDF membrane was obtained from the temperature sensitive casting solution.
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Affiliation(s)
- Yunze Wang
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
- Nano Science and Technology Institute
| | - Haibo Lin
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Zhu Xiong
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Ziyang Wu
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Xuemin Yu
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Yi Wang
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Fu Liu
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
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15
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Wu CJ, Xie R, Wei HB, Xu TT, Liu Z, Wang W, Ju XJ, Chu LY. Fabrication of a thermo-responsive membrane with cross-linked smart gates via a ‘grafting-to’ method. RSC Adv 2016. [DOI: 10.1039/c6ra05192h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel thermo-responsive membrane with the cross-linked microspheres as smart gates is fabricated by the “grafting to” technique, which exhibits excellent thermo-responsive characteristics with satisfactory reversibility and stability.
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Affiliation(s)
- Cheng-Jing Wu
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Rui Xie
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Hong-Bo Wei
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Ting-Ting Xu
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Zhuang Liu
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Wei Wang
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Xiao-Jie Ju
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
- State Key Laboratory of Polymer Materials Engineering
| | - Liang-Yin Chu
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
- State Key Laboratory of Polymer Materials Engineering
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16
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From Self-Assembled Monolayers to Coatings: Advances in the Synthesis and Nanobio Applications of Polymer Brushes. Polymers (Basel) 2015. [DOI: 10.3390/polym7071346] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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