1
|
Tran HQ, Ur Rehman A, Fioux P, Airoudj A, Vandamme T, Luchnikov V. Formation of a Controllable Diffusion Barrier Layer on the Surface of Polydimethylsiloxane Films by Infrared Laser Irradiation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7983-7995. [PMID: 38290481 DOI: 10.1021/acsami.3c15073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Developing a diffusion barrier layer on material interfaces has potential applications in various fields such as in packaging materials, pharmaceuticals, chemical filtration, microelectronics, and medical devices. Although numerous physical and chemical methods have been proposed to generate the diffusion barrier layer, the complexity of fabrication techniques and the high manufacturing costs limit their practical utility. Here, we propose an innovative approach to fabricate the diffusion barrier layer by irradiating poly(dimethylsiloxane) (PDMS) with a mid-infrared (λ = 10.6 μm) CO2 laser. This process directly creates a diffusion barrier layer on the PDMS surface by forming a heavily cross-linked network in the polymer matrix. The optimal irradiation conditions were investigated by modulating the defocusing distance, laser power, and number of scanning passes. The barrier thickness can reach up to 70 μm as observed by the scanning electron microscope (SEM). The attenuated total reflectance (ATR), electron dispersive X-ray (EDX), and X-ray photoelectron spectroscopy (XPS) analyses collectively confirmed the formation of the SiOx structure on the modified surface based on the decreased methyl group signal and the increased oxygen/silicon ratio. The diffusion test with the model drugs (rhodamine B and donepezil) demonstrated that the modified surface exhibits effective diffusion barrier properties and the rate of drug diffusion through the modified barrier layer can be controlled by the optimization of the irradiation parameters. This novel approach provides the possibility to develop a controllable diffusion barrier layer in a biocompatible polymer with prospective applications in the fields of pharmaceuticals, packing materials, and medical devices.
Collapse
Affiliation(s)
- Hung Quoc Tran
- Institut de Science des Matériaux de Mulhouse, CNRS LRC 7361, 68057 Mulhouse, France
| | - Asad Ur Rehman
- INSERM, Regenerative Nanomedicine UMR 1260, Centre de Recherche en Biomédecine de Strasbourg (CRBS), Université de Strasbourg, F-67000 Strasbourg, France
| | - Philippe Fioux
- Institut de Science des Matériaux de Mulhouse, CNRS LRC 7361, 68057 Mulhouse, France
| | - Aissam Airoudj
- Institut de Science des Matériaux de Mulhouse, CNRS LRC 7361, 68057 Mulhouse, France
| | - Thierry Vandamme
- INSERM, Regenerative Nanomedicine UMR 1260, Centre de Recherche en Biomédecine de Strasbourg (CRBS), Université de Strasbourg, F-67000 Strasbourg, France
| | - Valeriy Luchnikov
- Institut de Science des Matériaux de Mulhouse, CNRS LRC 7361, 68057 Mulhouse, France
| |
Collapse
|
2
|
Chen W, Yu H, Hao Y, Liu W, Wang R, Huang Y, Wu J, Feng L, Guan Y, Huang L, Qian K. Comprehensive Metabolic Fingerprints Characterize Neuromyelitis Optica Spectrum Disorder by Nanoparticle-Enhanced Laser Desorption/Ionization Mass Spectrometry. ACS NANO 2023; 17:19779-19792. [PMID: 37818994 DOI: 10.1021/acsnano.3c03765] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Timely screening of neuromyelitis optica spectrum disorder (NMOSD) and differential diagnosis from myelin oligodendrocyte glycoprotein associated disorder (MOGAD) are the keys to improving the quality of life of patients. Metabolic disturbance occurs with the development of NMOSD. Still, advanced tools are required to probe the metabolic phenotype of NMOSD. Here, we developed a fast nanoparticle-enhanced laser desorption/ionization mass spectrometry assay for multiplexing metabolic fingerprints (MFs) from trace plasma and cerebrospinal fluid (CSF) samples in 30 s. Machine learning of the plasma MFs achieved the timely screening of NMOSD from healthy donors with an area under receiver operator characteristic curve (AUROC) of 0.998, and it comprehensively revealed the dysregulated neurotransmitter and energy metabolisms. Combining comprehensive MFs from both plasma and CSF, we constructed an integrated panel for differential diagnosis of NMOSD versus MOGAD with an AUROC of 0.923. This approach demonstrated performance superior to that of human experts in classifying two diseases, especially in antibody assay-limited regions. Together, this approach provides an advanced nanomaterial-based tool for identifying vulnerable populations below the antibody threshold of aquaporin-4 positivity.
Collapse
Affiliation(s)
- Wei Chen
- Department of Clinical Laboratory Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
- State Key Laboratory for Oncogenes and Related Genes, School of Biomedical Engineering and Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Haojun Yu
- Department of Neurology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yong Hao
- Department of Neurology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Wanshan Liu
- State Key Laboratory for Oncogenes and Related Genes, School of Biomedical Engineering and Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Ruimin Wang
- State Key Laboratory for Oncogenes and Related Genes, School of Biomedical Engineering and Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Yida Huang
- State Key Laboratory for Oncogenes and Related Genes, School of Biomedical Engineering and Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Jiao Wu
- State Key Laboratory for Oncogenes and Related Genes, School of Biomedical Engineering and Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Lei Feng
- Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 201100, China
| | - Yangtai Guan
- Department of Neurology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Lin Huang
- Department of Clinical Laboratory Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Kun Qian
- State Key Laboratory for Oncogenes and Related Genes, School of Biomedical Engineering and Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai 200030, China
| |
Collapse
|
3
|
Wang Z, Lu P, Li S, Shan Y, Li L, Wang X, Liu S, Han L, Liu S, Liu Y. A surface modification strategy to prepare hierarchical Beta molecular sieves for glucose dehydration. Dalton Trans 2023; 52:13507-13516. [PMID: 37712245 DOI: 10.1039/d3dt01538f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
In order to balance the contradiction between mesopore introduction and loss of microporosity, a surface modification strategy is proposed by selectively adsorbing organic alkaline molecules on Beta molecular sieves before NaOH etching. Organic alkaline molecules adsorb on framework aluminum sites and the protective function of organic bases is affected by the adsorption configuration and physical barrier effect of organic bases. Organic alkaline molecules serve as a protective agent to increase the bond length of Al-O bonds. Therefore, the as-synthesized hierarchical Beta molecular sieves have more acid sites due to the preservation of aluminum atoms. When employed as catalysts in the dehydration reaction of glucose, 5-hydroxymethylfurfural (5-HMF) is obtained under the synergistic effect of Brønsted and Lewis acid sites. The unique contribution is to realize the porosity regulation and alleviate the acidity loss of Beta molecular sieves. These results are important to broaden the application fields of aluminum-silicon molecular sieves especially for large molecule-engaged acid catalyzed reactions.
Collapse
Affiliation(s)
- Zhongxu Wang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.
| | - Peng Lu
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.
| | - Shuo Li
- College of Chemistry & Chemical Engineering, Yantai University, Yantai 264005, China
| | - Yuling Shan
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.
| | - Lu Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.
| | - Xiaosheng Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing, China
| | - Shuwei Liu
- Hydrocarbon High-Efficiency Utilization Technology Research Center, Shaanxi Yanchang Petroleum (Group) Corp. Ltd, Xi'an, China
| | - Lei Han
- Hydrocarbon High-Efficiency Utilization Technology Research Center, Shaanxi Yanchang Petroleum (Group) Corp. Ltd, Xi'an, China
| | - Shiwei Liu
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.
- State Key Laboratory of Efficient Utilization of Coal and Green Chemical Industry, Ningxia 750021, China
| | - Yuxiang Liu
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.
| |
Collapse
|
4
|
Kim DH, Kwon HG, Choi HK. Dewetting-Induced Hierarchical Self-Assembly of Block Copolymers Templated by Colloidal Crystals. Polymers (Basel) 2023; 15:polym15040897. [PMID: 36850181 PMCID: PMC9961777 DOI: 10.3390/polym15040897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023] Open
Abstract
Recent advances in high-performance flexible electronic devices have increased the demand for more diverse and complex nanofabrication methods; high-resolution, high-efficiency, and low-cost patterning strategies for next-generation devices are therefore required. In this study, we demonstrate the formation of dewetting-induced hierarchical patterns using two self-assembled materials: block copolymers (BCPs) and colloidal crystals. The combination of the two self-assembly methods successfully generates multiscale hierarchical patterns because the length scales of the periodic colloidal crystal structures are suitable for templating the BCP patterns. Various concentric ring patterns were observed on the templated BCP films, and a free energy model of the polymer chain was applied to explain the formation of these patterns relative to the template width. Frequently occurring spiral-defective features were also examined and found to be promoted by Y-junction defects.
Collapse
|
5
|
Guo L, Ntetsikas K, Zapsas G, Thankamony R, Lai Z, Hadjichristidis N. Highly Efficient Production of Nanoporous Block Copolymers with Arbitrary Structural Characteristics for Advanced Membranes. Angew Chem Int Ed Engl 2023; 62:e202212400. [PMID: 36346623 DOI: 10.1002/anie.202212400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 11/11/2022]
Abstract
The great significance of boosting the design of percolating nanopore structures in block copolymers (BCPs) for various cases has been widely demonstrated in the past several decades. However, it still remains challenging to prepare the desired porous structures in a rapid, facile, and universal manner. Here we have developed an unconventional and benchtop strategy to rapidly generate the nanoporous polystyrene-based BCPs with arbitrary structural characteristics regardless of the BCP bulk morphology. This universal pore-forming strategy enables the sustainable CO2 -based BCPs to form advanced membranes after 1 s soaking for efficiently rejecting 94.2 % brilliant blue R (826 g mol-1 ). Meanwhile, the water permeance retains around 1020 L (m2 h bar)-1 , which is 1-3 orders of magnitude higher than that of other membranes. This strategy may offer an excellent opportunity to introduce percolating pore structures in those newly developed BCPs with which the previously reported pore-forming methods may not deal.
Collapse
Affiliation(s)
- Leiming Guo
- KAUST Catalysis Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Konstantinos Ntetsikas
- KAUST Catalysis Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Georgios Zapsas
- KAUST Catalysis Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Roshni Thankamony
- Advanced Membranes and Porous Materials Centre, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Zhiping Lai
- Advanced Membranes and Porous Materials Centre, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Nikos Hadjichristidis
- KAUST Catalysis Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| |
Collapse
|
6
|
Dong Y, Laaksonen A, Gong M, An R, Ji X. Selective Separation of Highly Similar Proteins on Ionic Liquid-Loaded Mesoporous TiO 2. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:3202-3211. [PMID: 35253426 PMCID: PMC8928471 DOI: 10.1021/acs.langmuir.1c03277] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/23/2022] [Indexed: 06/14/2023]
Abstract
Separating proteins from their mixtures is an important process in a great variety of applications, but it faces difficult challenges as soon as the proteins are simultaneously of similar sizes and carry comparable net charges. To develop both efficient and sustainable strategies for the selective separation of similar proteins and to understand the underlying molecular mechanisms to enable the separation are crucial. In this work, we propose a novel strategy where the cholinium-based amino acid [Cho][Pro] ionic liquid (IL) is used as the trace additive and loaded physically on a mesoporous TiO2 surface for separating two similar proteins (lysozyme and cytochrome c). The observed selective adsorption behavior is explained by the hydration properties of the [Cho][Pro] loaded on the TiO2 surface and their partially dissociated ions under different pH conditions. As the pH is increased from 5.0 to 9.8, the degree of hydration of IL ions also increases, gradually weakening the interaction strength of the proteins with the substrates, more for lysozymes, leading to their effective separation. These findings were further used to guide the detection of the retention behavior of a binary mixture of proteins in high-performance liquid chromatography, where the introduction of ILs did effectively separate the two similar proteins. Our results should further stimulate the use of ILs in the separation of proteins with a high degree of mutual similarity.
Collapse
Affiliation(s)
- Yihui Dong
- Department
of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Aatto Laaksonen
- Energy
Engineering, Division of Energy Science, Luleå University of Technology, Luleå 97187, Sweden
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm SE-10691, Sweden
- Center
of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular
Chemistry, Iasi 700469, Romania
- State Key
Laboratory of Materials-Oriented and Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Mian Gong
- Herbert
Gleiter Institute of Nanoscience, Department of Materials Science
and Engineering, Nanjing University of Science
and Technology, Nanjing 210094, P.R. China
| | - Rong An
- Herbert
Gleiter Institute of Nanoscience, Department of Materials Science
and Engineering, Nanjing University of Science
and Technology, Nanjing 210094, P.R. China
| | - Xiaoyan Ji
- Energy
Engineering, Division of Energy Science, Luleå University of Technology, Luleå 97187, Sweden
| |
Collapse
|
7
|
Lee J, Seo M. Downsizing of Block Polymer-Templated Nanopores to One Nanometer via Hyper-Cross-Linking of High χ-Low N Precursors. ACS NANO 2021; 15:9154-9166. [PMID: 33950684 DOI: 10.1021/acsnano.1c02690] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Synthesizing nanoporous polymer from the block polymer template by selective removal of the sacrificial domain offers straightforward pore size control as a function of the degree of polymerization (N). Downscaling pore size into the microporous regime (<2 nm) has been thermodynamically challenging, because the low N drives the system to disorder and the small-sized pore is prone to collapse. Herein, we report that maximizing cross-linking density of a block polymer precursor with an increased interaction parameter (χ) can help successfully stabilize the structure bearing pore sizes of 1.1 nm. We adopt polymerization-induced microphase separation (PIMS) combined with hyper-cross-linking as a strategy for the preparation of the bicontinuous block polymer precursors with a densely cross-linked framework by copolymerization of vinylbenzyl chloride with divinylbenzene and also Friedel-Crafts alkylation. Incorporating 4-vinylbiphenyl as a higher-χ comonomer to the sacrificial polylactide (PLA) block and optimizing the segregation strength versus cross-linking density allow for further downscaling. Control of pore size by N of PLA is demonstrated in the range of 9.9-1.1 nm. Accessible surface area to fluorescein-tagged dextrans is regulated by the relative size of the pore to the guest, and pore size is controlled. These findings will be useful for designing microporous polymers with tailored pore size for advanced catalytic and separation applications.
Collapse
Affiliation(s)
| | - Myungeun Seo
- Department of Chemistry, KAIST, Daejeon 34141, Korea
- KAIST Institute for Nanocentury, KAIST, Daejeon 34141, Korea
| |
Collapse
|
8
|
Yun HS, Do HW, Berggren KK, Ross CA, Choi HK. Commensurability-Driven Orientation Control during Block Copolymer Directed Self-Assembly. ACS APPLIED MATERIALS & INTERFACES 2020; 12:10852-10857. [PMID: 32024362 DOI: 10.1021/acsami.9b22104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this study, the orientation of block copolymer (BCP) patterns in topographical templates is controlled using a simple template design rule. The orientation of the pattern is selected by using a template with one commensurate dimension and one incommensurate dimension. An array of binary states of a BCP pattern can be programmed into a desired layout by tuning of the template wall thickness.
Collapse
Affiliation(s)
- Hyun Su Yun
- Division of Advanced Materials Engineering, Kongju National University, Cheonan 31080, Republic of Korea
| | - Hyung Wan Do
- Department of Chemical & Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Karl K Berggren
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Caroline A Ross
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Hong Kyoon Choi
- Division of Advanced Materials Engineering, Kongju National University, Cheonan 31080, Republic of Korea
| |
Collapse
|
9
|
Lan Q, Wang Y. Carbonization of gradient phenolics filled in macroporous substrates for high-flux tight membranes: Toward ultrafiltration of polypeptides. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
10
|
Zhou P, Yao L, Chen K, Su B. Silica Nanochannel Membranes for Electrochemical Analysis and Molecular Sieving: A Comprehensive Review. Crit Rev Anal Chem 2019; 50:424-444. [DOI: 10.1080/10408347.2019.1642735] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ping Zhou
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Lina Yao
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Kexin Chen
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Bin Su
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou, China
| |
Collapse
|
11
|
KAKIAGE M, SEKIYA M, TOMIYA D, YAMANOBE T, UEHARA H. Isothermal Crystallization Behavior of Polyethylene/Polystyrene Block Copolymer Estimated by Deconvolution Analysis of Differential Scanning Calorimetry Profiles. KOBUNSHI RONBUNSHU 2019. [DOI: 10.1295/koron.2018-0047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Masaki KAKIAGE
- Institute for Fiber Engineering, Shinshu University (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University
| | - Miho SEKIYA
- Division of Molecular Science, Faculty of Science and Technology, Gunma University
| | - Daiki TOMIYA
- Division of Molecular Science, Faculty of Science and Technology, Gunma University
| | - Takeshi YAMANOBE
- Division of Molecular Science, Faculty of Science and Technology, Gunma University
| | - Hiroki UEHARA
- Division of Molecular Science, Faculty of Science and Technology, Gunma University
| |
Collapse
|
12
|
Yang F, Tao F, Li C, Gao L, Yang P. Self-assembled membrane composed of amyloid-like proteins for efficient size-selective molecular separation and dialysis. Nat Commun 2018; 9:5443. [PMID: 30575744 PMCID: PMC6303310 DOI: 10.1038/s41467-018-07888-2] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 12/03/2018] [Indexed: 12/11/2022] Open
Abstract
The design and scalable construction of robust ultrathin protein membranes with tunable separation properties remain a key challenge in chemistry and materials science. Here, we report a macroscopic ultrathin protein membrane with the potential for scaled-up fabrication and excellent separation efficiency. This membrane, which is formed by fast amyloid-like lysozyme aggregation at air/water interface, has a controllable thickness that can be tuned to 30–250 nm and pores with a mean size that can be tailored from 1.8 to 3.2 nm by the protein concentration. This membrane can retain > 3 nm molecules and particles while permitting the transport of small molecules at a rate that is 1~4 orders of magnitude faster than the rate of existing materials. This membrane further exhibits excellent hemodialysis performance, especially for the removal of middle-molecular-weight uremic toxins, which is 5~6 times higher in the clearance per unit area than the typical literature values reported to date. Membrane separation is important for a range of industrial and medical applications. Here, the authors report on the formation of self-assembled protein membranes for size selective separation and demonstrate application in the separation of dyes, nanoparticles and in hemodialysis.
Collapse
Affiliation(s)
- Facui Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Fei Tao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Chen Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Lingxiang Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Peng Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China.
| |
Collapse
|
13
|
Song X, Guo H, Tao J, Zhao S, Han X, Liu H. Design of tunable-size 2D nanopore membranes from self-assembled amphiphilic nanosheets using dissipative particle dynamics simulations. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.05.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
14
|
Development of highly functional membranes through structural control of crystalline/amorphous phases. Polym J 2018. [DOI: 10.1038/s41428-018-0123-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
15
|
Do HW, Choi HK, Gadelrab KR, Chang JB, Alexander-Katz A, Ross CA, Berggren KK. Directed self-assembly of a two-state block copolymer system. NANO CONVERGENCE 2018; 5:25. [PMID: 30467681 PMCID: PMC6158142 DOI: 10.1186/s40580-018-0156-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 09/05/2018] [Indexed: 06/09/2023]
Abstract
In this work, ladder-shaped block copolymer structures consisting of parallel bars, bends, and T-junctions are formed inside square confinement. We define binary states by the two degenerate alignment orientations, and study properties of the two-state system. We control the binary states by creating openings around the confinement, changing the confinement geometry, or placing lithographic guiding patterns inside the confinement. Self-consistent field theory simulations show templating effect from the wall openings and reproduce the experimental results. We demonstrate scaling of a single binary state into a larger binary state array with individual binary state control.
Collapse
Affiliation(s)
- Hyung Wan Do
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Hong Kyoon Choi
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
- Division of Advanced Materials Engineering, Kongju National University, Cheonan, South Korea
| | - Karim R. Gadelrab
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| | - Jae-Byum Chang
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
- Department of Biomedical Engineering, Sungkyunkwan University, Seoul, South Korea
| | - Alfredo Alexander-Katz
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| | - Caroline A. Ross
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| | - Karl K. Berggren
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| |
Collapse
|
16
|
Facile Synthesis of β-Lactoglobulin-Functionalized Reduced Graphene Oxide and Trimetallic PtAuPd Nanocomposite for Electrochemical Sensing. NANOMATERIALS 2018; 8:nano8090724. [PMID: 30217075 PMCID: PMC6165462 DOI: 10.3390/nano8090724] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 09/05/2018] [Accepted: 09/07/2018] [Indexed: 12/12/2022]
Abstract
The use of graphene has leapt forward the materials field and the functional modification of graphene has not stopped. In this work, β-lactoglobulin (BLG) was used to functionalize reduced graphene oxide (RGO) based on its amphiphilic properties. Also, trimetallic PtAuPd nanoparticles were reduced to the surface of BLG-functionalized RGO and formed BLG-PtAuPd-RGO nanocomposite using facile synthesis. Transmission electron microscopy, energy-dispersive X-ray spectroscopy and Fourier transform infrared spectra were used to characterize the nanocomposite. Electrocatalytic analysis was evaluated through cyclic voltammetry and chronoamperometry methods. We developed a glucose sensor by fabricating GOD-BLG-PtAuPd-RGO/glassy carbon (GC) electrode. It presented a remarkable sensitivity of 63.29 μA mM−1 cm−2 (4.43 μA mM−1), a wider linear range from 0.005 to 9 mM and a lower detection limit of 0.13 μM (S/N = 3). Additionally, the glucose sensor exhibited excellent testing capability in human serum samples.
Collapse
|
17
|
Nisticò R. Block copolymers for designing nanostructured porous coatings. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:2332-2344. [PMID: 30202702 PMCID: PMC6122062 DOI: 10.3762/bjnano.9.218] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 08/08/2018] [Indexed: 06/08/2023]
Abstract
Highly ordered porous coatings find applications in many fields, such as nanotechnology, microfluidics and nanofluidics, membrane separation, and sensing. In recent years, there has been great interest regarding the synthesis of isoporous and well-ordered (in)organic coatings for the production of highly selective functional membranes. Among the different strategies that have been proposed to date for preparing these porous thin coatings, one simple route involves the use of self-assembled amphiphilic block copolymers either as the porogen (acting as sacrificial templating agents for the production of inorganic architectures) or as a source of the porogen (by self-assembly for the production of polymeric substrates). Therefore, an extended discussion around the exploitation of block copolymers is proposed here in this review, using polystyrene-block-polyethylene oxide (PS-b-PEO) as the model substrate, and critical points are highlighted.
Collapse
Affiliation(s)
- Roberto Nisticò
- Department of Applied Science and Technology DISAT, Polytechnic of Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy
| |
Collapse
|
18
|
Wang J, Rahman MM, Abetz C, Rangou S, Zhang Z, Abetz V. Novel Post-Treatment Approaches to Tailor the Pore Size of PS-b
-PHEMA Isoporous Membranes. Macromol Rapid Commun 2018; 39:e1800435. [DOI: 10.1002/marc.201800435] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/08/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Jiali Wang
- Helmholtz-Zentrum Geesthacht; Institute of Polymer Research; Max-Planck-Str. 1 21502 Geesthacht Germany
| | - Md. Mushfequr Rahman
- Helmholtz-Zentrum Geesthacht; Institute of Polymer Research; Max-Planck-Str. 1 21502 Geesthacht Germany
| | - Clarissa Abetz
- Helmholtz-Zentrum Geesthacht; Institute of Polymer Research; Max-Planck-Str. 1 21502 Geesthacht Germany
| | - Sofia Rangou
- Helmholtz-Zentrum Geesthacht; Institute of Polymer Research; Max-Planck-Str. 1 21502 Geesthacht Germany
| | - Zhenzhen Zhang
- Helmholtz-Zentrum Geesthacht; Institute of Polymer Research; Max-Planck-Str. 1 21502 Geesthacht Germany
| | - Volker Abetz
- Institute of Physical Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
| |
Collapse
|
19
|
Wu W, Yang Q, Su B. Centimeter-scale continuous silica isoporous membranes for molecular sieving. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.04.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
20
|
Sriwichai S, Janmanee R, Phanichphant S, Shinbo K, Kato K, Kaneko F, Yamamoto T, Baba A. Development of an electrochemical‐surface plasmon dual biosensor based on carboxylated conducting polymer thin films. J Appl Polym Sci 2017. [DOI: 10.1002/app.45641] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Saengrawee Sriwichai
- Department of Chemistry, Faculty of ScienceChiang Mai UniversityChiang Mai50200 Thailand
- Materials Science Research Center, Faculty of ScienceChiang Mai UniversityChiang Mai50200 Thailand
| | - Rapiphun Janmanee
- Department of Chemistry, Faculty of Science and TechnologyPibulsongkram Rajabhat UniversityPhitsanulok65000 Thailand
| | - Sukon Phanichphant
- Materials Science Research Center, Faculty of ScienceChiang Mai UniversityChiang Mai50200 Thailand
| | - Kazunari Shinbo
- Graduate School of Science and Technology and Center for Transdisciplinary ResearchNiigata UniversityNiigata950‐2181 Japan
| | - Keizo Kato
- Graduate School of Science and Technology and Center for Transdisciplinary ResearchNiigata UniversityNiigata950‐2181 Japan
| | - Futao Kaneko
- Graduate School of Science and Technology and Center for Transdisciplinary ResearchNiigata UniversityNiigata950‐2181 Japan
| | - Tadashi Yamamoto
- COI‐s Biofluid Biomarker Center, Institute for Research Collaboration and Promotion, Niigata UniversityNiigata950‐2181 Japan
| | - Akira Baba
- Graduate School of Science and Technology and Center for Transdisciplinary ResearchNiigata UniversityNiigata950‐2181 Japan
| |
Collapse
|
21
|
Mori T, Masukawa S, Kikkawa T, Fujimori A, Satoh A, Matsumoto K, Jikei M, Oishi Y, Shibasaki Y. Rapid synthesis and properties of segmented block copolymers based on monodisperse aromatic poly(N-methyl benzamide) and poly(propylene oxide). RSC Adv 2017. [DOI: 10.1039/c7ra05161a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Monodisperse aromatic N-methyl benzamide-based molecules (Mw/Mn = 1.02–1.04) with terephthalic acid at both sides (MABx–x) were rapidly prepared by a step-wise reaction using the reported one-pot dendrimer synthetic method.
Collapse
Affiliation(s)
- T. Mori
- Department of Chemistry & Biological Sciences
- Faculty of Science & Engineering
- Iwate University
- Iwate 020-8551
- Japan
| | - S. Masukawa
- Department of Chemistry & Biological Sciences
- Faculty of Science & Engineering
- Iwate University
- Iwate 020-8551
- Japan
| | - T. Kikkawa
- Graduate School of Science and Engineering
- Saitama University
- Saitama 338-8570
- Japan
| | - A. Fujimori
- Graduate School of Science and Engineering
- Saitama University
- Saitama 338-8570
- Japan
| | - A. Satoh
- Department of Applied Chemistry
- Akita University
- Akita-shi
- Japan
| | - K. Matsumoto
- Department of Applied Chemistry
- Akita University
- Akita-shi
- Japan
| | - M. Jikei
- Department of Applied Chemistry
- Akita University
- Akita-shi
- Japan
| | - Y. Oishi
- Department of Chemistry & Biological Sciences
- Faculty of Science & Engineering
- Iwate University
- Iwate 020-8551
- Japan
| | - Y. Shibasaki
- Department of Chemistry & Biological Sciences
- Faculty of Science & Engineering
- Iwate University
- Iwate 020-8551
- Japan
| |
Collapse
|
22
|
Zhou M, Wu YN, Luo P, Lyu J, Mu D, Li A, Li F, Li G. Fabrication of free-standing membranes with tunable pore structures based on the combination of electrospinning and self-assembly of block copolymers. RSC Adv 2017. [DOI: 10.1039/c7ra10585a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Polydopamine could improve interface performance of composite membranes with tunable structures which were developed by combining electrospinning and BCP self-assembly.
Collapse
Affiliation(s)
- Meimei Zhou
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region
- Ministry of Education
- School of Environmental Science and Engineering
- Chang'an University
- 710054 Xi'an
| | - Yi-nan Wu
- College of Environmental Science & Engineering
- Tongji University
- Shanghai
- China
| | - Pingping Luo
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region
- Ministry of Education
- School of Environmental Science and Engineering
- Chang'an University
- 710054 Xi'an
| | - Jiqiang Lyu
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region
- Ministry of Education
- School of Environmental Science and Engineering
- Chang'an University
- 710054 Xi'an
| | - Dengrui Mu
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region
- Ministry of Education
- School of Environmental Science and Engineering
- Chang'an University
- 710054 Xi'an
| | - Aowen Li
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region
- Ministry of Education
- School of Environmental Science and Engineering
- Chang'an University
- 710054 Xi'an
| | - Fengting Li
- College of Environmental Science & Engineering
- Tongji University
- Shanghai
- China
| | - Guangtao Li
- Department of Chemistry
- Key Lab of Organic Optoelectronics & Molecular Engineering
- Tsinghua University
- Beijing 100084
- China
| |
Collapse
|
23
|
Huang SH, Huang YW, Chiang YW, Hsiao TJ, Mao YC, Chiang CH, Tsai JC. Nanoporous Crystalline Templates from Double-Crystalline Block Copolymers by Control of Interactive Confinement. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01725] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shih-Hung Huang
- Department
of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - You-Wei Huang
- Department
of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Yeo-Wan Chiang
- Department
of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Ting-Jui Hsiao
- Department
of Chemical Engineering, National Chung Cheng University, Chia-Yi 62142, Taiwan
| | - Yung-Cheng Mao
- Department
of Chemical Engineering, National Chung Cheng University, Chia-Yi 62142, Taiwan
| | - Cheng-Hung Chiang
- Department
of Chemical Engineering, National Chung Cheng University, Chia-Yi 62142, Taiwan
| | - Jing-Cherng Tsai
- Department
of Chemical Engineering, National Chung Cheng University, Chia-Yi 62142, Taiwan
| |
Collapse
|
24
|
Kamakoti V, Panneer Selvam A, Radha Shanmugam N, Muthukumar S, Prasad S. Flexible Molybdenum Electrodes towards Designing Affinity Based Protein Biosensors. BIOSENSORS 2016; 6:E36. [PMID: 27438863 PMCID: PMC5039655 DOI: 10.3390/bios6030036] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 07/01/2016] [Accepted: 07/11/2016] [Indexed: 12/25/2022]
Abstract
Molybdenum electrode based flexible biosensor on porous polyamide substrates has been fabricated and tested for its functionality as a protein affinity based biosensor. The biosensor performance was evaluated using a key cardiac biomarker; cardiac Troponin-I (cTnI). Molybdenum is a transition metal and demonstrates electrochemical behavior upon interaction with an electrolyte. We have leveraged this property of molybdenum for designing an affinity based biosensor using electrochemical impedance spectroscopy. We have evaluated the feasibility of detection of cTnI in phosphate-buffered saline (PBS) and human serum (HS) by measuring impedance changes over a frequency window from 100 mHz to 1 MHz. Increasing changes to the measured impedance was correlated to the increased dose of cTnI molecules binding to the cTnI antibody functionalized molybdenum surface. We achieved cTnI detection limit of 10 pg/mL in PBS and 1 ng/mL in HS medium. The use of flexible substrates for designing the biosensor demonstrates promise for integration with a large-scale batch manufacturing process.
Collapse
Affiliation(s)
- Vikramshankar Kamakoti
- Department of Bioengineering, University of Texas at Dallas, 800 W. Campbell Rd., Richardson, TX 75080, USA.
| | - Anjan Panneer Selvam
- Department of Bioengineering, University of Texas at Dallas, 800 W. Campbell Rd., Richardson, TX 75080, USA.
| | - Nandhinee Radha Shanmugam
- Department of Bioengineering, University of Texas at Dallas, 800 W. Campbell Rd., Richardson, TX 75080, USA.
| | | | - Shalini Prasad
- Department of Bioengineering, University of Texas at Dallas, 800 W. Campbell Rd., Richardson, TX 75080, USA.
| |
Collapse
|
25
|
Ali A, Ahmad M, Akhtar MN, Shaukat SF, Mustafa G, Atif M, Farooq WA. Magnetic nanoparticles (Fe3O4 & Co3O4) and their applications in urea biosensing. RUSS J APPL CHEM+ 2016. [DOI: 10.1134/s1070427216040017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
26
|
Chaturvedi P, Rodriguez SD, Vlassiouk I, Hansen IA, Smirnov SN. Simple and Versatile Detection of Viruses Using Anodized Alumina Membranes. ACS Sens 2016; 1:488-492. [PMID: 28529972 DOI: 10.1021/acssensors.6b00003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A simple sensor for viral particles based on ionic conductivity through anodized alumina membranes was demonstrated using MS2 bacteriophage as an example. A facile two-point measuring scheme is geared toward realization using a computer's sound card input/output capabilities suitable for a fast and inexpensive point of care testing. The lowest detection concentration down to ~7 pfu/mL and a large dynamic range up to ~2000 pfu/mL were obtained due to physical optimization that included proper length and diameter for the pores, removing the oxide layer at the electrode, as well as the chemical optimization of covalent binding of antibodies to the pore's walls.
Collapse
Affiliation(s)
| | | | - Ivan Vlassiouk
- Oak Ridge National Laboratory, Oak
Ridge, Tennessee 37831, United States
| | | | | |
Collapse
|
27
|
Suárez-Suárez S, Carriedo GA, Presa Soto A. Porous films by the self-assembly of inorganic rod-b-coil block copolymers: mechanistic insights into the vesicle-to-pore morphological evolution. SOFT MATTER 2016; 12:3084-3092. [PMID: 26898560 DOI: 10.1039/c5sm02861b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The self-assembly in thin films of polyphosphazene block copolymers [N = P(O2C12H8)]n-b-[N = PMePh]m (O2C12H8 = 2,2'-dioxy-1,1'-biphenyl; : n = 50, m = 35; : n = 20, m = 70, and : n = 245, m = 60), having different volume fractions of the rigid [N = P(O2C12H8)]n block, has been studied. BCP spontaneously self-assembled into well-defined round-shaped macroporous films, observing also, as a minor morphology, spherical vesicles in regions where the film was not formed. A detailed study by SEM, TEM and AFM of the structure of the vesicles, the morphology of the pores (inverted mushroom-shaped), and the behaviour of the copolymers with shorter () and longer () [N = P(O2C12H8)]n rigid blocks provided sufficient experimental evidence to propose a vesicle-to-pore morphological evolution as the most likely mechanism to explain the pore formation during the self-assembly of . Moreover, by changing the volume fraction of the rigid block and the speed of solvent evaporation, it was possible to vary the pore morphology (and their diameter) from isolated regular groups to 3D interconnected pore networks.
Collapse
Affiliation(s)
- Silvia Suárez-Suárez
- Química Orgánica e Inorgánica (IUQOEM), Universidad de Oviedo, Julián Clavería s/n, 33006, Oviedo, Spain.
| | - Gabino A Carriedo
- Química Orgánica e Inorgánica (IUQOEM), Universidad de Oviedo, Julián Clavería s/n, 33006, Oviedo, Spain.
| | - Alejandro Presa Soto
- Química Orgánica e Inorgánica (IUQOEM), Universidad de Oviedo, Julián Clavería s/n, 33006, Oviedo, Spain.
| |
Collapse
|
28
|
Yan N, Wang Y. Selective swelling induced pore generation of amphiphilic block copolymers: The role of swelling agents. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/polb.23997] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nina Yan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering; Nanjing Tech University; Nanjing 210009 Jiangsu People's Republic of China
| | - Yong Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering; Nanjing Tech University; Nanjing 210009 Jiangsu People's Republic of China
| |
Collapse
|
29
|
Yan F, Lin X, Su B. Vertically ordered silica mesochannel films: electrochemistry and analytical applications. Analyst 2016; 141:3482-95. [DOI: 10.1039/c6an00146g] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Vertically-aligned mesoporous silica films were used for electrochemical sensing and molecular separation in terms of molecular size, charge and lipophilicity.
Collapse
Affiliation(s)
- Fei Yan
- Institute of Microanalytical Systems
- Department of Chemistry
- Zhejiang University
- 310058 Hangzhou
- China
| | - Xingyu Lin
- Institute of Microanalytical Systems
- Department of Chemistry
- Zhejiang University
- 310058 Hangzhou
- China
| | - Bin Su
- Institute of Microanalytical Systems
- Department of Chemistry
- Zhejiang University
- 310058 Hangzhou
- China
| |
Collapse
|
30
|
Saniei M, Tran MP, Bae SS, Boahom P, Gong P, Park CB. From micro/nano structured isotactic polypropylene to a multifunctional low-density nanoporous medium. RSC Adv 2016. [DOI: 10.1039/c6ra22607h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
A homogeneous low-density nano-porous medium of isotactic polypropylene (iPP) with a low thermal conductivity was fabricated using supercritical carbon dioxide (scCO2).
Collapse
Affiliation(s)
- Mehdi Saniei
- Microcellular Plastics Manufacturing Laboratory
- Department of Mechanical and Industrial Engineering
- University of Toronto
- Toronto
- Canada M5S 3G8
| | - Minh-Phuong Tran
- Microcellular Plastics Manufacturing Laboratory
- Department of Mechanical and Industrial Engineering
- University of Toronto
- Toronto
- Canada M5S 3G8
| | - Seong-Soo Bae
- Microcellular Plastics Manufacturing Laboratory
- Department of Mechanical and Industrial Engineering
- University of Toronto
- Toronto
- Canada M5S 3G8
| | - Piyapong Boahom
- Microcellular Plastics Manufacturing Laboratory
- Department of Mechanical and Industrial Engineering
- University of Toronto
- Toronto
- Canada M5S 3G8
| | - Pengjian Gong
- Microcellular Plastics Manufacturing Laboratory
- Department of Mechanical and Industrial Engineering
- University of Toronto
- Toronto
- Canada M5S 3G8
| | - Chul B. Park
- Microcellular Plastics Manufacturing Laboratory
- Department of Mechanical and Industrial Engineering
- University of Toronto
- Toronto
- Canada M5S 3G8
| |
Collapse
|
31
|
Lin X, Yang Q, Ding L, Su B. Ultrathin Silica Membranes with Highly Ordered and Perpendicular Nanochannels for Precise and Fast Molecular Separation. ACS NANO 2015; 9:11266-77. [PMID: 26458217 DOI: 10.1021/acsnano.5b04887] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Membranes with the ability of molecular/ionic separation offer potential in many processes ranging from molecular purification/sensing, to nanofluidics and to mimicking biological membranes. In this work, we report the preparation of a perforative free-standing ultrathin silica membrane consisting of straight and parallel nanochannels with a uniform size (∼2.3 nm) for precise and fast molecular separation. Due to its small and uniform channel size, the membrane exhibits a precise selectivity toward molecules based on size and charge, which can be tuned by ionic strength, pH or surface modification. Furthermore, the ultrasmall thickness (10-120 nm), vertically aligned channels, and high porosity (4.0 × 10(12) pores cm(-2)) give rise to a significantly high molecular transport rate. In addition, the membrane also displays excellent stability and can be consecutively reused for a month after washing or calcination. More importantly, the membrane fabrication is convenient, inexpensive, and does not rely on sophisticated facilities or conditions, providing potential applications in both separation science and micro/nanofluidic chip technologies.
Collapse
Affiliation(s)
- Xingyu Lin
- Institute of Microanalytical Systems, Department of Chemistry & Centre for Chemistry of High-Performance and Novel Materials, Zhejiang University , Hangzhou 310058, P. R. China
| | - Qian Yang
- Institute of Microanalytical Systems, Department of Chemistry & Centre for Chemistry of High-Performance and Novel Materials, Zhejiang University , Hangzhou 310058, P. R. China
| | - Longhua Ding
- Institute of Microanalytical Systems, Department of Chemistry & Centre for Chemistry of High-Performance and Novel Materials, Zhejiang University , Hangzhou 310058, P. R. China
| | - Bin Su
- Institute of Microanalytical Systems, Department of Chemistry & Centre for Chemistry of High-Performance and Novel Materials, Zhejiang University , Hangzhou 310058, P. R. China
| |
Collapse
|
32
|
Petzetakis N, Doherty CM, Thornton AW, Chen XC, Cotanda P, Hill AJ, Balsara NP. Membranes with artificial free-volume for biofuel production. Nat Commun 2015; 6:7529. [PMID: 26104672 PMCID: PMC4491837 DOI: 10.1038/ncomms8529] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 05/15/2015] [Indexed: 11/21/2022] Open
Abstract
Free-volume of polymers governs transport of penetrants through polymeric films. Control over free-volume is thus important for the development of better membranes for a wide variety of applications such as gas separations, pharmaceutical purifications and energy storage. To date, methodologies used to create materials with different amounts of free-volume are based primarily on chemical synthesis of new polymers. Here we report a simple methodology for generating free-volume based on the self-assembly of polyethylene-b-polydimethylsiloxane-b-polyethylene triblock copolymers. We have used this method to fabricate a series of membranes with identical compositions but with different amounts of free-volume. We use the term artificial free-volume to refer to the additional free-volume created by self-assembly. The effect of artificial free-volume on selective transport through the membranes was tested using butanol/water and ethanol/water mixtures due to their importance in biofuel production. We found that the introduction of artificial free-volume improves both alcohol permeability and selectivity. The free-volume of a polymer is a key parameter in its ability to permit through transport of small molecules. Here, the authors develop a way of introducing different degrees of artificial free-volume to a polymer membrane, and thus tailor its penetrability for applications including biofuel purification.
Collapse
Affiliation(s)
- Nikos Petzetakis
- Department of Chemical &Biomolecular Engineering, University of California, Berkeley, California 94720, USA
| | - Cara M Doherty
- CSIRO Manufacturing Private Bag 10, Clayton South, Victoria 3169, Australia
| | - Aaron W Thornton
- CSIRO Manufacturing Private Bag 10, Clayton South, Victoria 3169, Australia
| | - X Chelsea Chen
- Materials Sciences Division &Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Pepa Cotanda
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Anita J Hill
- CSIRO Manufacturing Private Bag 10, Clayton South, Victoria 3169, Australia
| | - Nitash P Balsara
- 1] Department of Chemical &Biomolecular Engineering, University of California, Berkeley, California 94720, USA [2] Materials Sciences Division &Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA [3] Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| |
Collapse
|
33
|
Zhou H, Lu Y, Qiu H, Guerin G, Manners I, Winnik MA. Photocleavage of the Corona Chains of Rigid-Rod Block Copolymer Micelles. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00238] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Hang Zhou
- Department
of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Yijie Lu
- Department
of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Huibin Qiu
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Gerald Guerin
- Department
of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Ian Manners
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Mitchell A. Winnik
- Department
of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| |
Collapse
|
34
|
Huber P. Soft matter in hard confinement: phase transition thermodynamics, structure, texture, diffusion and flow in nanoporous media. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2015; 27:103102. [PMID: 25679044 DOI: 10.1088/0953-8984/27/10/103102] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Spatial confinement in nanoporous media affects the structure, thermodynamics and mobility of molecular soft matter often markedly. This article reviews thermodynamic equilibrium phenomena, such as physisorption, capillary condensation, crystallisation, self-diffusion, and structural phase transitions as well as selected aspects of the emerging field of spatially confined, non-equilibrium physics, i.e. the rheology of liquids, capillarity-driven flow phenomena, and imbibition front broadening in nanoporous materials. The observations in the nanoscale systems are related to the corresponding bulk phenomenologies. The complexity of the confined molecular species is varied from simple building blocks, like noble gas atoms, normal alkanes and alcohols to liquid crystals, polymers, ionic liquids, proteins and water. Mostly, experiments with mesoporous solids of alumina, gold, carbon, silica, and silicon with pore diameters ranging from a few up to 50 nm are presented. The observed peculiarities of nanopore-confined condensed matter are also discussed with regard to applications. A particular emphasis is put on texture formation upon crystallisation in nanoporous media, a topic both of high fundamental interest and of increasing nanotechnological importance, e.g. for the synthesis of organic/inorganic hybrid materials by melt infiltration, the usage of nanoporous solids in crystal nucleation or in template-assisted electrochemical deposition of nano structures.
Collapse
Affiliation(s)
- Patrick Huber
- Hamburg University of Technology (TUHH), Institute of Materials Physics and Technology, Eißendorfer Str. 42, D-21073 Hamburg-Harburg (Germany
| |
Collapse
|
35
|
Zhang P, Zhao X, Ji Y, Ouyang Z, Wen X, Li J, Su Z, Wei G. Electrospinning graphene quantum dots into a nanofibrous membrane for dual-purpose fluorescent and electrochemical biosensors. J Mater Chem B 2015; 3:2487-2496. [PMID: 32262123 DOI: 10.1039/c4tb02092h] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Graphene quantum dots (GQDs) have become increasingly important for applications in energy materials, optical devices and biosensors. Here we report a facile technique to fabricate a nanofibrous membrane of GQDs by electrospinning water-soluble GQDs with polyvinyl alcohol (PVA) directly. The structure and fluorescence properties of the fabricated PVA/GQD nanofibrous membrane were investigated using scanning and transmission electron microscopy, and fluorescence microscopy. It was found that the electrospun PVA/GQD nanofibrous membrane has a three-dimensional structure with a high surface area to volume ratio, which is beneficial for the adsorption of electrolytes and the diffusion of reactants. For the first time, the created PVA/GQD nanofibrous membrane was utilized to fabricate dual-purpose fluorescent and electrochemical biosensors for highly sensitive determination of hydrogen peroxide (H2O2) and glucose. The experimental results indicated that the fluorescence intensity of the nanofibrous membrane decreased linearly with increasing H2O2 concentration, because the addition of H2O2 leads to fluorescence quenching of the GQDs, which endows the fabricated nanofibrous membrane with fluorescence activity. Besides, after binding glucose oxidase onto the created nanofibrous membrane, the fabricated nanofibrous membrane showed high sensitivity and selectivity for glucose detection. In addition, the PVA/GQD nanofibrous membrane can also be directly electrospun onto an electrode for electrochemical detection of H2O2. This novel nanofibrous membrane exhibits excellent catalytic performance and fluorescence activity, and therefore has potential applications for the highly stable, sensitive, and selective detection of H2O2 and glucose.
Collapse
Affiliation(s)
- Panpan Zhang
- Beijing Key Laboratory on Preparation and Processing of Novel Polymeric Materials, Beijing University of Chemical Technology, 100029 Beijing, China.
| | | | | | | | | | | | | | | |
Collapse
|
36
|
DiSanto RM, Subramanian V, Gu Z. Recent advances in nanotechnology for diabetes treatment. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2015; 7:548-64. [PMID: 25641955 DOI: 10.1002/wnan.1329] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Revised: 09/10/2014] [Accepted: 11/08/2014] [Indexed: 12/11/2022]
Abstract
Nanotechnology in diabetes research has facilitated the development of novel glucose measurement and insulin delivery modalities which hold the potential to dramatically improve quality of life for diabetics. Recent progress in the field of diabetes research at its interface with nanotechnology is our focus. In particular, we examine glucose sensors with nanoscale components including metal nanoparticles and carbon nanostructures. The addition of nanoscale components commonly increases glucose sensor sensitivity, temporal response, and can lead to sensors which facilitate continuous in vivo glucose monitoring. Additionally, we survey nanoscale approaches to 'closed-loop' insulin delivery strategies which automatically release insulin in response to fluctuating blood glucose levels (BGLs). 'Closing the loop' between BGL measurements and insulin administration by removing the requirement of patient action holds the potential to dramatically improve the health and quality of life of diabetics. Advantages and limitations of current strategies, as well as future opportunities and challenges are also discussed.
Collapse
Affiliation(s)
- Rocco Michael DiSanto
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, USA
| | - Vinayak Subramanian
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, USA
| | - Zhen Gu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, USA.,Molecular Pharmaceutics Division, Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| |
Collapse
|
37
|
Zhang Y, Sargent JL, Boudouris BW, Phillip WA. Nanoporous membranes generated from self-assembled block polymer precursors:Quo Vadis? J Appl Polym Sci 2014. [DOI: 10.1002/app.41683] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yizhou Zhang
- Department of Chemical and Biomolecular Engineering; University of Notre Dame; Notre Dame Indiana 46556
| | - Jessica L. Sargent
- School of Chemical Engineering, Purdue University; West Lafayette Indiana 47907
| | - Bryan W. Boudouris
- School of Chemical Engineering, Purdue University; West Lafayette Indiana 47907
| | - William A. Phillip
- Department of Chemical and Biomolecular Engineering; University of Notre Dame; Notre Dame Indiana 46556
| |
Collapse
|
38
|
Ahn H, Park S, Kim SW, Yoo PJ, Ryu DY, Russell TP. Nanoporous block copolymer membranes for ultrafiltration: a simple approach to size tunability. ACS NANO 2014; 8:11745-11752. [PMID: 25363788 DOI: 10.1021/nn505234v] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nanoporous structures were obtained by the self-assembly of polystyrene-b-poly(methyl methacrylate) (PS-b-PMMA) block copolymers (BCP) where, in thick films, cylindrical microdomains were oriented normal to the substrate and air interfaces, and in the interior of the films, the microdomains were randomly oriented. Continuous nanopores that penetrated through the film were readily produced by a simple preferential swelling of the PMMA microdomains. The confined swelling and rapid contraction of PMMA microdomains generated well-defined uniform pores with diameters to 17.5 nm. The size selectivity and rejection of Au nanoparticles (NPs) for these ultrafiltration (UF) membranes were demonstrated, suggesting an efficient route to tunable, noncomponent-degradative UF membranes.
Collapse
Affiliation(s)
- Hyungju Ahn
- Department of Life Science & Chemical Materials, Pohang Accelerator Laboratory, POSTECH , 80 Jigok-ro, Nam-gu Pohang 790-834, Korea
| | | | | | | | | | | |
Collapse
|
39
|
|
40
|
Ito T. Block Copolymer-Derived Monolithic Polymer Films and Membranes Comprising Self-Organized Cylindrical Nanopores for Chemical Sensing and Separations. Chem Asian J 2014; 9:2708-18. [DOI: 10.1002/asia.201402136] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Indexed: 12/13/2022]
|
41
|
Simão C, Khunsin W, Kehagias N, Salaun M, Zelsmann M, Morris MA, Sotomayor Torres CM. Order quantification of hexagonal periodic arrays fabricated by in situ solvent-assisted nanoimprint lithography of block copolymers. NANOTECHNOLOGY 2014; 25:175703. [PMID: 24722230 DOI: 10.1088/0957-4484/25/17/175703] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Directed self-assembly of block copolymer polystyrene-b-polyethylene oxide (PS-b-PEO) thin film was achieved by a one-pot methodology of solvent vapor assisted nanoimprint lithography (SAIL). Simultaneous solvent-anneal and imprinting of a PS-b-PEO thin film on silicon without surface pre-treatments yielded a 250 nm line grating decorated with 20 nm diameter nanodots array over a large surface area of up to 4' wafer scale. The grazing-incidence small-angle x-ray scattering diffraction pattern showed the fidelity of the NIL stamp pattern replication and confirmed the periodicity of the BCP of 40 nm. The order of the hexagonally arranged nanodot lattice was quantified by SEM image analysis using the opposite partner method and compared to conventionally solvent-annealed block copolymer films. The imprint-based SAIL methodology thus demonstrated an improvement in ordering of the nanodot lattice of up to 50%, and allows significant time and cost reduction in the processing of these structures.
Collapse
Affiliation(s)
- Claudia Simão
- Institut Catala de Nanociencia i Nanotecnologia, Campus de la UAB, Barcelona 08193, Spain
| | | | | | | | | | | | | |
Collapse
|
42
|
Vukovic I, Punzhin S, Voet VSD, Vukovic Z, de Hosson JTM, ten Brinke G, Loos K. Gyroid nickel nanostructures from diblock copolymer supramolecules. J Vis Exp 2014:50673. [PMID: 24797367 PMCID: PMC4181504 DOI: 10.3791/50673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Nanoporous metal foams possess a unique combination of properties - they are catalytically active, thermally and electrically conductive, and furthermore, have high porosity, high surface-to-volume and strength-to-weight ratio. Unfortunately, common approaches for preparation of metallic nanostructures render materials with highly disordered architecture, which might have an adverse effect on their mechanical properties. Block copolymers have the ability to self-assemble into ordered nanostructures and can be applied as templates for the preparation of well-ordered metal nanofoams. Here we describe the application of a block copolymer-based supramolecular complex - polystyrene-block-poly(4-vinylpyridine)(pentadecylphenol) PS-b-P4VP(PDP) - as a precursor for well-ordered nickel nanofoam. The supramolecular complexes exhibit a phase behavior similar to conventional block copolymers and can self-assemble into the bicontinuous gyroid morphology with two PS networks placed in a P4VP(PDP) matrix. PDP can be dissolved in ethanol leading to the formation of a porous structure that can be backfilled with metal. Using electroless plating technique, nickel can be inserted into the template's channels. Finally, the remaining polymer can be removed via pyrolysis from the polymer/inorganic nanohybrid resulting in nanoporous nickel foam with inverse gyroid morphology.
Collapse
Affiliation(s)
- Ivana Vukovic
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of Groningen
| | - Sergey Punzhin
- Materials Science, Zernike Institute for Advanced Materials, University of Groningen
| | - Vincent S D Voet
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of Groningen
| | | | - Jeff Th M de Hosson
- Materials Science, Zernike Institute for Advanced Materials, University of Groningen
| | - Gerrit ten Brinke
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of Groningen
| | - Katja Loos
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of Groningen;
| |
Collapse
|
43
|
Lee HC, Hsueh HY, Jeng US, Ho RM. Functionalized Nanoporous Gyroid SiO2 with Double-Stimuli-Responsive Properties as Environment-Selective Delivery Systems. Macromolecules 2014. [DOI: 10.1021/ma500360a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Hui-Chun Lee
- Department
of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Han-Yu Hsueh
- Department
of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - U-Ser Jeng
- Department
of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
- National Synchrotron
Radiation Research Center, 101 Hsin-Ann
Road, Hsinchu Science Park, Taiwan
| | - Rong-Ming Ho
- Department
of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| |
Collapse
|
44
|
Uehara H, Kano M, Tanaka H, Kato S, Masunaga H, Yamanobe T. Nanoporous morphology control of polyethylene membranes by block copolymer blends. RSC Adv 2014. [DOI: 10.1039/c4ra01676a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A desirable combination of size-selective molecular permeation and robustness development for nanoporous membranes could be achieved via pore geometry control by a blending technique.
Collapse
Affiliation(s)
- Hiroki Uehara
- Division of Molecular Science
- Faculty of Science and Technology
- Gunma University
- Kiryu, Japan
| | - Makiko Kano
- Division of Molecular Science
- Faculty of Science and Technology
- Gunma University
- Kiryu, Japan
| | - Hidekazu Tanaka
- Division of Molecular Science
- Faculty of Science and Technology
- Gunma University
- Kiryu, Japan
| | - Satomi Kato
- Division of Molecular Science
- Faculty of Science and Technology
- Gunma University
- Kiryu, Japan
| | | | - Takeshi Yamanobe
- Division of Molecular Science
- Faculty of Science and Technology
- Gunma University
- Kiryu, Japan
| |
Collapse
|
45
|
Zhao H, Gu W, Thielke MW, Sterner E, Tsai T, Russell TP, Coughlin EB, Theato P. Functionalized Nanoporous Thin Films and Fibers from Photocleavable Block Copolymers Featuring Activated Esters. Macromolecules 2013. [DOI: 10.1021/ma400659h] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Hui Zhao
- Institue for Technical and Macromolecular
Chemistry, University of Hamburg, Bundesstr.
45, 20146 Hamburg, Germany
| | - Weiyin Gu
- Department of Polymer Science & Engineering, University of Massachusetts, 120 Governors Drive, Amherst, Massachusetts 01003-4530, United States
| | - Michael W. Thielke
- Institue for Technical and Macromolecular
Chemistry, University of Hamburg, Bundesstr.
45, 20146 Hamburg, Germany
| | - Elizabeth Sterner
- Department of Polymer Science & Engineering, University of Massachusetts, 120 Governors Drive, Amherst, Massachusetts 01003-4530, United States
| | - Tsunghan Tsai
- Department of Polymer Science & Engineering, University of Massachusetts, 120 Governors Drive, Amherst, Massachusetts 01003-4530, United States
| | - Thomas P. Russell
- Department of Polymer Science & Engineering, University of Massachusetts, 120 Governors Drive, Amherst, Massachusetts 01003-4530, United States
| | - E. Bryan Coughlin
- Department of Polymer Science & Engineering, University of Massachusetts, 120 Governors Drive, Amherst, Massachusetts 01003-4530, United States
| | - Patrick Theato
- Institue for Technical and Macromolecular
Chemistry, University of Hamburg, Bundesstr.
45, 20146 Hamburg, Germany
| |
Collapse
|
46
|
Querelle SE, Jackson EA, Cussler EL, Hillmyer MA. Ultrafiltration membranes with a thin poly(styrene)-b-poly(isoprene) selective layer. ACS APPLIED MATERIALS & INTERFACES 2013; 5:5044-5050. [PMID: 23687980 DOI: 10.1021/am400847m] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Ultrafiltration membranes with an 80 nm thick block polymer derived selective layer containing 20 nm cylindrical pores were prepared by removing poly(lactide) (PLA) from a poly(styrene)-b-poly(isoprene)-b-poly(lactide) (PS-PI-PLA) film onto a microporous polymer support. The block polymer film adopted a core(PLA)-shell(PI) cylindrical morphology in which vertically-oriented PLA cylinders were degraded to leave PI-lined channels in a PS matrix. Thanks to the combination of PS and PI in the nanoporous matrix, chemical cross-linking was not needed to provide mechanical stability in the thin film. The membranes showed a hydraulic flux of 165 L m(-2) h(-1) bar(-1) and were able to size-discriminate poly(ethylene oxide) (PEO) solutes in agreement with theoretical predictions.
Collapse
Affiliation(s)
- Sarah E Querelle
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | | | | | | |
Collapse
|
47
|
Krieg E, Albeck S, Weissman H, Shimoni E, Rybtchinski B. Separation, immobilization, and biocatalytic utilization of proteins by a supramolecular membrane. PLoS One 2013; 8:e63188. [PMID: 23675461 PMCID: PMC3651134 DOI: 10.1371/journal.pone.0063188] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 03/29/2013] [Indexed: 11/19/2022] Open
Abstract
Membrane separation of biomolecules and their application in biocatalysis is becoming increasingly important for biotechnology, demanding the development of new biocompatible materials with novel properties. In the present study, an entirely noncovalent water-based material is used as a membrane for size-selective separation, immobilization, and biocatalytic utilization of proteins. The membrane shows stable performance under physiological conditions, allowing filtration of protein mixtures with a 150 kDa molecular weight cutoff (∼8 nm hydrodynamic diameter cutoff). Due to the biocompatibility of the membrane, filtered proteins stay functionally active and retained proteins can be partially recovered. Upon filtration, large enzymes become immobilized within the membrane. They exhibit stable activity when subjected to a constant flux of substrates for prolonged periods of time, which can be used to carry out heterogeneous biocatalysis. The noncovalent membrane material can be easily disassembled, purified, reassembled, and reused, showing reproducible performance after recycling. The robustness, recyclability, versatility, and biocompatibility of the supramolecular membrane may open new avenues for manipulating biological systems.
Collapse
Affiliation(s)
- Elisha Krieg
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel
| | - Shira Albeck
- Israel Structural Proteomics Center (ISPC), Weizmann Institute of Science, Rehovot, Israel
| | - Haim Weissman
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel
| | - Eyal Shimoni
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, Israel
| | - Boris Rybtchinski
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel
- * E-mail:
| |
Collapse
|
48
|
Vukovic I, Brinke GT, Loos K. Block copolymer template-directed synthesis of well-ordered metallic nanostructures. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.03.013] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
49
|
Gamys CG, Schumers JM, Mugemana C, Fustin CA, Gohy JF. Pore-Functionalized Nanoporous Materials Derived from Block Copolymers. Macromol Rapid Commun 2013; 34:962-82. [DOI: 10.1002/marc.201300214] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 04/18/2013] [Indexed: 11/10/2022]
|
50
|
Duan C, Wang W, Xie Q. Review article: Fabrication of nanofluidic devices. BIOMICROFLUIDICS 2013; 7:26501. [PMID: 23573176 PMCID: PMC3612116 DOI: 10.1063/1.4794973] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Accepted: 02/26/2013] [Indexed: 05/07/2023]
Abstract
Thanks to its unique features at the nanoscale, nanofluidics, the study and application of fluid flow in nanochannels/nanopores with at least one characteristic size smaller than 100 nm, has enabled the occurrence of many interesting transport phenomena and has shown great potential in both bio- and energy-related fields. The unprecedented growth of this research field is apparently attributed to the rapid development of micro/nanofabrication techniques. In this review, we summarize recent activities and achievements of nanofabrication for nanofluidic devices, especially those reported in the past four years. Three major nanofabrication strategies, including nanolithography, microelectromechanical system based techniques, and methods using various nanomaterials, are introduced with specific fabrication approaches. Other unconventional fabrication attempts which utilize special polymer properties, various microfabrication failure mechanisms, and macro/microscale machining techniques are also presented. Based on these fabrication techniques, an inclusive guideline for materials and processes selection in the preparation of nanofluidic devices is provided. Finally, technical challenges along with possible opportunities in the present nanofabrication for nanofluidic study are discussed.
Collapse
Affiliation(s)
- Chuanhua Duan
- Department of Mechanical Engineering, Boston University, 110 Cummington Street, Boston, Massachusetts 02215, USA
| | | | | |
Collapse
|