1
|
Seo MH, Yoo JY, Jo MS, Yoon JB. Geometrically Structured Nanomaterials for Nanosensors, NEMS, and Nanosieves. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907082. [PMID: 32253800 DOI: 10.1002/adma.201907082] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/18/2019] [Indexed: 06/11/2023]
Abstract
Recently, geometrically structured nanomaterials have received great attention due to their unique physical and chemical properties, which originate from the geometric variation in such materials. Indeed, the use of various geometrically structured nanomaterials has been actively reported in enhanced-performance devices in a wide range of applications. Recent significant progress in the development of geometrically structured nanomaterials and associated devices is summarized. First, a brief introduction of advanced nanofabrication methods that enable the fabrication of various geometrically structured nanomaterials is given, and then the performance enhancements achieved in devices utilizing these nanomaterials, namely, i) physical and gas nanosensors, ii) nanoelectromechanical devices, and iii) nanosieves are described. For the device applications, a systematic summary of their structures, working mechanisms, fabrication methods, and output performance is provided. Particular focus is given to how device performance can be enhanced through the geometric structures of the nanomaterials. Finally, perspectives on the development of novel nanomaterial structures and associated devices are presented.
Collapse
Affiliation(s)
- Min-Ho Seo
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL, 60208, USA
| | - Jae-Young Yoo
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Min-Seung Jo
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jun-Bo Yoon
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| |
Collapse
|
2
|
Lee DS, Park S, Han YD, Lee JE, Jeong HY, Yoon HC, Jung MY, Kim SO, Choi SY. Selective protein transport through ultra-thin suspended reduced graphene oxide nanopores. NANOSCALE 2017; 9:13457-13464. [PMID: 28682407 DOI: 10.1039/c7nr01889d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The nanoporous free-standing graphene membrane is of great interest in high performance separation technology. In particular, the separation of biological molecules with similar sizes is one of the key challenges in the purification of biomaterials. Here, we report a reliable, cost-effective, and facile method for the fabrication of a graphene-based nanosieve and its application in the separation of similar-size proteins. A suspended reduced graphene oxide (rGO) nanosieve with ultra-thin, large-area, well-ordered, and dense 15 nm-sized pores was fabricated using block copolymer (BCP) lithography. The fabricated 5 nm-ultrathin nanosieve with an area of 200 μm × 200 μm (an ultra-high aspect ratio of ∼40 000) endured pressure up to 1 atm, and effectively separated hemoglobin (Hb) from a mixture of hemoglobin and immunoglobulin G (IgG), the common proteins in human blood, in a highly selective and rapid manner. The use of the suspended rGO nanosieve is expected to provide a simple and manufacturable platform for practical biomolecule separation offering high selectivity and a large throughput.
Collapse
Affiliation(s)
- Dae-Sik Lee
- Electronics and Telecommunications Research Institute (ETRI), 218 Gajeongno, Yuseong-gu, Daejeon, 34129, Republic of Korea.
| | | | | | | | | | | | | | | | | |
Collapse
|
3
|
Varricchio SSG, Piacentini N, Bertsch A, Renaud P. Multimaterial Nanoporous Membranes Shaped through High Aspect-Ratio Sacrificial Silicon Nanostructures. ACS OMEGA 2017; 2:2387-2394. [PMID: 31457588 PMCID: PMC6640980 DOI: 10.1021/acsomega.7b00084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 04/26/2017] [Indexed: 06/10/2023]
Abstract
We present an innovative fabrication method for solid-state nanoporous membranes based on the casting of sacrificial silicon nanostructures. The process allows the individual definition of geometry and placement of each nanopore through e-beam lithography and is compatible with a wide range of materials without the need to adapt the process to the materials used. We demonstrate the fabrication of membranes integrating high aspect-ratio nanopores with critical dimensions as small as 30 nm, 1.2 μm in length, with round or elongated shapes, and made of silicon dioxide or amorphous carbon. The capability to engineer nanoporous membranes made of a variety of materials and with tailored designs will lead to new applications in the field of electrochemical sensing, flow modulation, or the chemical functionalization of nanopores.
Collapse
|
4
|
Seo MH, Yoo JY, Choi SY, Lee JS, Choi KW, Jeong CK, Lee KJ, Yoon JB. Versatile Transfer of an Ultralong and Seamless Nanowire Array Crystallized at High Temperature for Use in High-Performance Flexible Devices. ACS NANO 2017; 11:1520-1529. [PMID: 28135071 DOI: 10.1021/acsnano.6b06842] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Nanowire (NW) transfer technology has provided promising strategies to realize future flexible materials and electronics. Using this technology, geometrically controlled, high-quality NW arrays can now be obtained easily on various flexible substrates with high throughput. However, it is still challenging to extend this technology to a wide range of high-performance device applications because its limited temperature tolerance precludes the use of high-temperature annealing, which is essential for NW crystallization and functionalization. A pulsed laser technique has been developed to anneal NWs in the presence of a flexible substrate; however, the induced temperature is not high enough to improve the properties of materials such as ceramics and semiconductors. Here, we present a versatile nanotransfer method that is applicable to NWs that require high-temperature annealing. To successfully anneal NWs during their transfer, the developed fabrication method involves sequential removal of a nanoscale sacrificial layer. Using this method, we first produce an ultralong, perfectly aligned polycrystalline barium titanate (BaTiO3) NW array that is heat treated at 700 °C on a flexible polyethylene terephthalate (PET) substrate. This high-quality piezoelectric NW array on a flexible substrate is used as a flexible nanogenerator that generates current and voltage 37 and 10 times higher, respectively, than those of a nanogenerator made of noncrystallized BaTiO3 NWs.
Collapse
Affiliation(s)
- Min-Ho Seo
- School of Electrical Engineering, ‡KAIST Institute for NanoCentury, and §Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jae-Young Yoo
- School of Electrical Engineering, ‡KAIST Institute for NanoCentury, and §Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - So-Young Choi
- School of Electrical Engineering, ‡KAIST Institute for NanoCentury, and §Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jae-Shin Lee
- School of Electrical Engineering, ‡KAIST Institute for NanoCentury, and §Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Kwang-Wook Choi
- School of Electrical Engineering, ‡KAIST Institute for NanoCentury, and §Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Chang Kyu Jeong
- School of Electrical Engineering, ‡KAIST Institute for NanoCentury, and §Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Keon Jae Lee
- School of Electrical Engineering, ‡KAIST Institute for NanoCentury, and §Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jun-Bo Yoon
- School of Electrical Engineering, ‡KAIST Institute for NanoCentury, and §Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| |
Collapse
|
5
|
Zhang Z, Xie G, Xiao K, Kong XY, Li P, Tian Y, Wen L, Jiang L. Asymmetric Multifunctional Heterogeneous Membranes for pH- and Temperature-Cooperative Smart Ion Transport Modulation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:9613-9619. [PMID: 27629083 DOI: 10.1002/adma.201602758] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 07/26/2016] [Indexed: 05/20/2023]
Abstract
Asymmetric multifunctional heterogeneous membranes are demonstrated by combing a block copolymer polystyrene-block-poly(N,N-dimethylaminoethylmethacrylate) membrane with a track-etched porous poly(ethylene terephthalate) membrane. This hybrid membrane is capable of integrating pH- and temperature-cooperative high-performance ionic rectification, highly efficient cation gating, and excellent stability and controllability, which allows broad application in biosensing, energy conversion, and filtration.
Collapse
Affiliation(s)
- Zhen Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ganhua Xie
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Kai Xiao
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiang-Yu Kong
- School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
| | - Pei Li
- Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Ye Tian
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Liping Wen
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Lei Jiang
- Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
| |
Collapse
|
6
|
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
|
7
|
Boott CE, Nazemi A, Manners I. Synthetische kovalente und nichtkovalente zweidimensionale Materialien. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502009] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Charlotte E. Boott
- School of Chemistry, University of Bristol, Bristol, BS8 1TS (Großbritannien)
| | - Ali Nazemi
- School of Chemistry, University of Bristol, Bristol, BS8 1TS (Großbritannien)
| | - Ian Manners
- School of Chemistry, University of Bristol, Bristol, BS8 1TS (Großbritannien)
| |
Collapse
|
8
|
Synthetic Covalent and Non-Covalent 2D Materials. Angew Chem Int Ed Engl 2015; 54:13876-94. [DOI: 10.1002/anie.201502009] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 05/18/2015] [Indexed: 11/07/2022]
|
9
|
Wu S, Braschler T, Anker R, Wildhaber F, Bertsch A, Brugger J, Renaud P. Composite hydrogel-loaded alumina membranes for nanofluidic molecular filtration. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2014.12.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
10
|
Huang Z, Bai F. Wafer-scale, three-dimensional helical porous thin films deposited at a glancing angle. NANOSCALE 2014; 6:9401-9409. [PMID: 24838479 DOI: 10.1039/c4nr00249k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Minimization of helices opens a door to impose novel functions derived from the dimensional shrinkage of optical, mechanical and electronic devices. Glancing angle deposition (GLAD) enables one to deposit three-dimensional helical porous thin films (HPTFs) composed of separated spiral micro/nano-columns. GLAD integrates a series of advantageous features, including one-step deposition, wafer-scale production with mono-handedness of spirals, flexible engineering of spiral materials and dimensions, and the adaption to various kinds of substrates. Herein, we briefly review the fabrication of HPTFs by GLAD, specific growth mechanisms, physical properties in structures, mechanics and chiral optics, and the emerging applications in green energy. A prospective outlook is presented to illuminate some promising developments in enantioselection, bio-dynamic analyses, wirelessly-controlled drug delivery and mass production.
Collapse
Affiliation(s)
- Zhifeng Huang
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Hong Kong SAR, P. R. China.
| | | |
Collapse
|
11
|
Lee DS, Song HW, Choi CG, Jung MY. Pore-size reduction protocol for SiN membrane nanopore using the thermal reflow in nanoimprinting for nanobio-based sensing. JOURNAL OF BIOMEDICAL OPTICS 2014; 19:051211. [PMID: 24503699 DOI: 10.1117/1.jbo.19.5.051211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 12/26/2013] [Indexed: 06/03/2023]
Abstract
Micro- and nano-fabrication methods facilitate the use of nanostructures for the separation of collections of particles and nanobio-based optical and electrochemical sensing. We have presented an easy and simple nanopore size reduction method of a low-stressed silicon nitride (SiN) membrane nanosieve (100×100 μm2) using a nanoimprinting method based on a natural thermal reflow of the contact imprinting polymer, possibly maintaining compatibility with complementary metal-oxide semiconductor integrated circuit processes. The nanopore pattern size of this nanosieve membrane was precisely patterned by a nanoimprinting process using an electron beam patterned silicon master, to about 30-nm diameter. By employing mainly an electron beam resist reflow phenomena after a nanoimprinting process and anisotropic reactive ion etch, the etch holes' size was fabricated to be the same with nanopatterns on the polymer. The contact imprinting master can be used continually for the generation of nanopore patterns simply and easily. It can endure harsh conditions like high temperature up to 800°C, and it is inert to many aggressive and strong chemicals. Also, this would be a low-cost, simple, and easy fabrication method for the precise and reliable size-reduction control of nanopores for mass production of nanobio sensors or chips.
Collapse
Affiliation(s)
- Dae-Sik Lee
- Electronics and Telecommunication Research Institute, IT Convergence Components Laboratory, Daejeon 305-700, Republic of Korea
| | - Hyun-Woo Song
- Electronics and Telecommunication Research Institute, IT Convergence Components Laboratory, Daejeon 305-700, Republic of Korea
| | - Choon-Gi Choi
- Creative Research Center for Graphene Electronics, ETRI, Daejeon 305-700, Republic of Korea
| | - Mun Youn Jung
- Electronics and Telecommunication Research Institute, IT Convergence Components Laboratory, Daejeon 305-700, Republic of Korea
| |
Collapse
|
12
|
Payamyar P, Kaja K, Ruiz-Vargas C, Stemmer A, Murray DJ, Johnson CJ, King BT, Schiffmann F, Vandevondele J, Renn A, Götzinger S, Ceroni P, Schütz A, Lee LT, Zheng Z, Sakamoto J, Schlüter AD. Synthesis of a covalent monolayer sheet by photochemical anthracene dimerization at the air/water interface and its mechanical characterization by AFM indentation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:2052-8. [PMID: 24347495 DOI: 10.1002/adma.201304705] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 11/07/2013] [Indexed: 05/10/2023]
Abstract
Covalent monolayer sheets in 2 hours: spreading of threefold anthracene-equipped shape-persistent and amphiphilic monomers at the air/water interface followed by a short photochemical treatment provides access to infinitely sized, strictly monolayered, covalent sheets with in-plane elastic modulus in the range of 19 N/m.
Collapse
Affiliation(s)
- Payam Payamyar
- Department of Materials, Polymer Chemistry Group, Swiss Federal Institute of Technology, ETH Zürich, HCI J 541, 8093, Zürich, Switzerland
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Chen Y, Li M, Payamyar P, Zheng Z, Sakamoto J, Schlüter AD. Room Temperature Synthesis of a Covalent Monolayer Sheet at Air/Water Interface Using a Shape-Persistent Photoreactive Amphiphilic Monomer. ACS Macro Lett 2014; 3:153-158. [PMID: 35590496 DOI: 10.1021/mz400597k] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The shape-persistent monomer 3 with its three 1,8-diazaanthracene (DAA) units is spread and compressed at the air/water interface and the layer then converted into a 1.5 nm thick covalent monolayer sheet by photoirradiation under ambient conditions. The sheet obtained under these extremely mild conditions is mechanically stable to carry its own weight when spanned over TEM grids. While its molecular structure cannot be given yet with certainty, it is likely to be the result of [4 + 4]-cycloaddition dimerizations between the DAA units of neighboring monomers. Evidence is based on the wavelength of the monomer fluorescence emission, the kinetics of this emission's intensity decay with irradiation time, and the mechanical sheet stability that suggests a surpassing of percolation threshold. Finally, the thermal stability of the sheet is investigated.
Collapse
Affiliation(s)
- Yougen Chen
- Laboratory of Polymer Chemistry, Department of Materials, Swiss Federal Institute of Technology, ETH Zürich, HCI J 541, CH-8093 Zürich, Switzerland
| | - Ming Li
- Laboratory of Polymer Chemistry, Department of Materials, Swiss Federal Institute of Technology, ETH Zürich, HCI J 541, CH-8093 Zürich, Switzerland
| | - Payam Payamyar
- Laboratory of Polymer Chemistry, Department of Materials, Swiss Federal Institute of Technology, ETH Zürich, HCI J 541, CH-8093 Zürich, Switzerland
| | - Zhikun Zheng
- Laboratory of Polymer Chemistry, Department of Materials, Swiss Federal Institute of Technology, ETH Zürich, HCI J 541, CH-8093 Zürich, Switzerland
| | - Junji Sakamoto
- Laboratory of Polymer Chemistry, Department of Materials, Swiss Federal Institute of Technology, ETH Zürich, HCI J 541, CH-8093 Zürich, Switzerland
| | - A. Dieter Schlüter
- Laboratory of Polymer Chemistry, Department of Materials, Swiss Federal Institute of Technology, ETH Zürich, HCI J 541, CH-8093 Zürich, Switzerland
| |
Collapse
|
14
|
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
|
15
|
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
|