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Chen W, Liu K, Liao X, Wu J, Chen L, Yang Z, Wang X, Liao Y, Fu G, Yang X, Wang Z, Qu G, Wang L, Zhou Y, Zhang Z, Yang C, Ni S, Zheng J, Tao TH, Zou D. Harmonizing Thickness and Permeability in Bone Tissue Engineering: A Novel Silk Fibroin Membrane Inspired by Spider Silk Dynamics. Adv Mater 2023:e2310697. [PMID: 38102951 DOI: 10.1002/adma.202310697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 11/22/2023] [Indexed: 12/17/2023]
Abstract
Guided bone regeneration gathers significant interest in the realm of bone tissue engineering; however, the interplay between membrane thickness and permeability continues to pose a challenge that can be addressed by the water-collecting mechanism of spider silk, where water droplets efficiently move from smooth filaments to rough conical nodules. Inspired by the natural design of spider silk, an innovative silk fibroin membrane is developed featuring directional fluid transportation via harmoniously integrating a smooth, dense layer with a rough, loose layer; conical microchannels are engineered in the smooth and compact layer. Consequently, double-layered membranes with cone-shaped microporous passageways (CSMP-DSF membrane) are designed for in situ bone repair. Through extensive in vitro testing, it is noted that the CSMP-DSF membrane guides liquid flow from the compact layer's surface to the loose layer, enabling rapid diffusion. Remarkably, the CSMP-DSF membrane demonstrates superior mechanical properties and resistance to bacterial adhesion. When applied in vivo, the CSMP-DSF membrane achieves results on par with the commercial Bio-Gide collagen membranes. This innovative integration of a cross-thickness wetting gradient structure offers a novel solution, harmonizing the often-conflicting requirements of material transport, mechanical strength, and barrier effectiveness, while also addressing issues related to tissue engineering scaffold perfusion.
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Affiliation(s)
- Wenze Chen
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- College & Hospital of Stomatology, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, 230032, China
| | - Keyin Liu
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Xiaoyu Liao
- College & Hospital of Stomatology, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, 230032, China
| | - Jing Wu
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Lu Chen
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Zihan Yang
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Xiping Wang
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yinxiu Liao
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Guiqiang Fu
- College & Hospital of Stomatology, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, 230032, China
| | - Xiaonian Yang
- College & Hospital of Stomatology, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, 230032, China
| | - Zishuo Wang
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Guanlin Qu
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Li Wang
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yuqiong Zhou
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - ZhiYuan Zhang
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Chi Yang
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Siyuan Ni
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Jisi Zheng
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Tiger H Tao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 200031, China
- Institute of Brain-Intelligence Technology, Zhangjiang Laboratory, Shanghai, 200031, China
- Shanghai Research Center for Brain Science and Brain-Inspired Intelligence, Shanghai, 200031, China
| | - Duohong Zou
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- College & Hospital of Stomatology, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, 230032, China
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Zhang L, Chen L, Xu L, Zhao H, Wen R, Xia F. Gastrointestinal peristalsis-inspired hydrogel actuators for NIR-controlled transport of viscous liquids. Adv Mater 2023:e2212149. [PMID: 37078244 DOI: 10.1002/adma.202212149] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/18/2023] [Indexed: 05/03/2023]
Abstract
Liquid transportation is fundamentally important in microfluidics, water collection, biosensing and printing, and has attracted enormous research interest in the past decades. However, despite substantial progress, it remains a big challenge to achieve the controlled transport of viscous liquids (>100 mPa∙s) commonly existing in daily life and the chemical industry. Inspired by the gastrointestinal peristalsis of mammalians that can efficiently transport viscous chyme (viscosity up to 2,000 mPa∙s) by the synergistic combination of contraction driving force and lubrication, this paper reports the design and construction of double-layered tubular hydrogel actuators for directional transport of highly viscous liquids ranging from ∼1000 mPa∙s to >80000 mPa∙s under the control of an applied 808 nm laser, which is attributed to the cooperation of outer layer contraction and water film lubrication of the inner layer. It's demonstrated that the actuators are capable of transporting polymerizing liquid whose viscosity significantly increases to ∼11182 mPa·s in 2 h. This work paves a new avenue towards directional transport of highly viscous liquids, which not only expands the research scope of liquid transportation, but will spur the design of new liquid actuators with potential applications in viscous liquid-based microfluidics, artificial blood vessels, and soft robots. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Liyun Zhang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Linfeng Chen
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Lei Xu
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Huan Zhao
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Ruyi Wen
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Fan Xia
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, P. R. China
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan, 430074, P. R. China
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Chen Y, Li S, Li X, Mei C, Zheng J, E S, Duan G, Liu K, Jiang S. Liquid Transport and Real-Time Dye Purification via Lotus Petiole-Inspired Long-Range-Ordered Anisotropic Cellulose Nanofibril Aerogels. ACS Nano 2021; 15:20666-20677. [PMID: 34881863 DOI: 10.1021/acsnano.1c10093] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nowadays, large-scale oriented functional porous materials have been sought after by researchers. However, regulation of the long-range uniform and oriented structures of the material remains a challenge. Herein, ultralong anisotropic cellulose nanofibril (CNF) aerogels with uniformly ordered structures of pore walls inspired by lotus petioles were constructed by applying external speeds to counterbalance the growth driving forces of ice crystals. Based on the growth law of ice crystals, the ice crystals grew at a stable rate when the applied external speed was 0.04 mm/s, ensuring the consistent orientation of the large-scale CNF aerogel. The aerogel exhibited a rapid long-range directional transport ability to different liquid solvents, delivering ethanol up to 40 mm from bottom to top within 50 s. Moreover, by introducing rectorites with good cation-exchange properties, the resulting long-range composite possessed an enhanced adsorption capacity for methylene blue. Furthermore, aerogel successfully achieved real-time dye purification at a long distance, such as fast dye adsorption or selective adsorption. This flexible and straightforward strategy of fabricating ultralong oriented CNF aerogel materials is expected to promote the development of functional aerogels in directional liquid transport and sewage treatment.
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Affiliation(s)
- Yiming Chen
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province, College of Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Shujing Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xinlin Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Changtong Mei
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jiajia Zheng
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province, College of Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Shiju E
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province, College of Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Gaigai Duan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
- Fujian Key Laboratory of Eco-Industrial Green Technology, College of Ecology and Resources Engineering, Wuyi University, Wuyishan 354300, China
| | - Kunming Liu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Shaohua Jiang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
- Fujian Key Laboratory of Eco-Industrial Green Technology, College of Ecology and Resources Engineering, Wuyi University, Wuyishan 354300, China
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Li Y, Zhang Q, Chen R, Yan Y, Sun Z, Zhang X, Tian D, Jiang L. Stretch-Enhanced Anisotropic Wetting on Transparent Elastomer Film for Controlled Liquid Transport. ACS Nano 2021; 15:19981-19989. [PMID: 34841855 DOI: 10.1021/acsnano.1c07512] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Direction-controlled wetting surfaces, special for lubricating oil infused anisotropic surfaces, have attracted great research interest in directional liquid collection, expelling, transfer, and separation. Nonetheless, there are still existing difficulties in achieving directional and continuous liquid transport. Herein, we present a strategy to achieve directional liquid transport on transparent lubricating oil infused elastomer film with V-shaped prisms microarray (VPM). The results reveal that the water wetting direction in the parallel and staggered arrangement of the VPM structure surface with lubricating oil infusion is the opposite, which is completely different from the wetting direction on the usual VPM surface in air. Moreover, asymmetric stretching can enhance or weaken the directional water wetting tendency on the lubricating oil infused VPM elastomer film and even can reverse the droplet wetting direction. In a closed moist environment, tiny droplets gradually coalesce and then slip away from the lubricating oil infused VPM surface to keep the surface transparent, due to the cooperation of imbalanced Laplace pressure, resulting from the anisotropic geometric structures, varying VPMs spacing, and gravity. Thus, this work provides a paradigm to design and fabricate a type of surface engineering material in the application fields of directional expelling, liquid collection, anti-biofouling, anti-icing, drag reduction, anticorrosion, etc.
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Affiliation(s)
- Yan Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P. R. China
| | - Qiuya Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P. R. China
| | - Rui Chen
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P. R. China
| | - Yufeng Yan
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P. R. China
| | - Zhenning Sun
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P. R. China
| | - Xiaofang Zhang
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Dongliang Tian
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, P. R. China
| | - Lei Jiang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, P. R. China
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100191, P. R. China
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Abstract
The transport of fluid and ions in nano/molecular confinements is the governing physics of a myriad of embodiments in nature and technology including human physiology, plants, energy modules, water collection and treatment systems, chemical processes, materials synthesis, and medicine. At nano/molecular scales, the confinement dimension approaches the molecular size and the transport characteristics deviates significantly from that at macro/micro scales. A thorough understanding of physics of transport at these scales and associated fluid properties is undoubtedly critical for future technologies. This compressive review provides an elaborate picture on the promising future applications of nano/molecular transport, highlights experimental and simulation metrologies to probe and comprehend this transport phenomenon, discusses the physics of fluid transport, tunable flow by orders of magnitude, and gating mechanisms at these scales, and lists the advancement in the fabrication methodologies to turn these transport concepts into reality. Properties such as chain-like liquid transport, confined gas transport, surface charge-driven ion transport, physical/chemical ion gates, and ion diodes will provide avenues to devise technologies with enhanced performance inaccessible through macro/micro systems. This review aims to provide a consolidated body of knowledge to accelerate innovation and breakthrough in the above fields.
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Affiliation(s)
- Masoumeh Nazari
- Department of Mechanical Engineering, University of Houston, 4726 Calhoun Road, Houston, Texas 77204, United States
| | - Ali Davoodabadi
- Department of Mechanical Engineering, University of Houston, 4726 Calhoun Road, Houston, Texas 77204, United States
| | - Dezhao Huang
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Tengfei Luo
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Hadi Ghasemi
- Department of Mechanical Engineering, University of Houston, 4726 Calhoun Road, Houston, Texas 77204, United States
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Liu J, Yu P, Wang D, Chen Z, Cui Q, Hu B, Zhang D, Li Y, Chu H, Li J. Wood-Derived Hybrid Scaffold with Highly Anisotropic Features on Mechanics and Liquid Transport toward Cell Migration and Alignment. ACS Appl Mater Interfaces 2020; 12:17957-17966. [PMID: 32196310 DOI: 10.1021/acsami.0c00646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Fantastic structures in nature have inspired much incredible research. Wood, a typical model of anisotropy and hierarchy, has been widely investigated for its mechanical properties and water extraction abilities, although applications in biological areas remain challenging. Delignified wood composite with in situ deposited hydroxyapatite (HAp) and infiltrated polycaprolactone (PCL) is hereby fabricated in an attempt to mimic natural bone. The inherent structure and properties of wood are carefully preserved during the fabrication, showing anisotropic mechanical properties in the radial direction (420 MPa) and longitudinal direction (20 MPa). In addition, it also performs directional liquid transport, effectively inducing the migration and alignment of cells to simulate the uniform seeding behavior of various cells in natural bone. Moreover, the synergistic effect of blended HAp and PCL largely promotes cell proliferation and osteogenic differentiation, providing a promising candidate for bone regeneration materials.
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Affiliation(s)
- Jinming Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Peng Yu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Dingqian Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zhuoxin Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Qinke Cui
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Bohan Hu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Dongyue Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Yanyan Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Hetao Chu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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Zhang Q, He L, Zhang X, Tian D, Jiang L. Switchable Direction of Liquid Transport via an Anisotropic Microarray Surface and Thermal Stimuli. ACS Nano 2020; 14:1436-1444. [PMID: 31868346 DOI: 10.1021/acsnano.9b09137] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Design and construction of special surface microstructures has made many amazing breakthroughs in directional liquid transport. Despite much progress in this field, challenges still remain in on-demand switchable direction transport of liquid in situ and real-time via transforming the arrangement of the surface microstructure and external stimuli. Herein, we demonstrate a strategy to achieve switchable direction transport of liquid via a tunable anisotropic microarray surface, that is, assembling a V-shaped prism microarray (VPM) surface, which can also be intelligently manipulated by thermal stimuli. By transforming the parallel and staggered prism microstructure arrangement of the VPM, switchable direction transport of a liquid can be successfully achieved on the VPM surface. Flow direction switching among unidirectional transport, bidirectional transport, and reverse unidirectional transport is also achieved on the temperature-adaptive VPM surface by thermal stimuli, which can be used for on-demand liquid transport according to the paths of the microfluidic channels. The work provides a way for precise liquid manipulation in desired liquid transport, which may be utilized in nonpower conveying systems, autolubrication, life fluid medical instruments, and other microfluidic devices.
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Affiliation(s)
- Qiuya Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry , Beihang University , Beijing 100191 , P.R. China
| | - Linlin He
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry , Beihang University , Beijing 100191 , P.R. China
| | - Xiaofang Zhang
- School of Mathematics and Physics , University of Science and Technology Beijing , Beijing 100083 , P.R. China
| | - Dongliang Tian
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry , Beihang University , Beijing 100191 , P.R. China
- Beijing Advanced Innovation Center for Biomedical Engineering , Beihang University , Beijing 100191 , P.R. China
| | - Lei Jiang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry , Beihang University , Beijing 100191 , P.R. China
- Beijing Advanced Innovation Center for Biomedical Engineering , Beihang University , Beijing 100191 , P.R. China
- Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100191 , P.R. China
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8
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Subbotin V, Fiksel G. Modeling multi-needle injection into solid tumor. Am J Cancer Res 2019; 9:2209-2215. [PMID: 31720083 PMCID: PMC6834475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 09/30/2019] [Indexed: 06/10/2023] Open
Abstract
The discovery of mechanisms by which the cancer cells avoid the host immune attack (immune checkpoints) as well the capability of the monoclonal antibodies (mAbs) to blockade the checkpoint proteins on cancer and tumor-infiltrating cells (CTLA-4, PD-1, and PD-L1) promised new breakthroughs in the cure of cancer. After these mechanisms of cancer escaping the host immunity were undoubtedly confirmed in numerous experimental and clinical studies, the FDA approval of CTLA-4 and PD-1/PD-L1 mAbs for systemic treatment thought to revolutionize the outcome of cancer treatment. However, as of today, the anticipated curative effect of anti-CTLA-4 and PD-1/PD-L1 mAb treatments has been observed only in a small population of patients. In addition, systemic administration of mAbs in clinics has been found associated with new toxicity profiles, sometimes very severe. The main obstacle that hinders the mAbs therapy appears to be the inability of delivering mAbs to a sufficient number of cancer cells and tumor infiltrating cells. As an alternative to the systemic administration (or as a complement to it), local intratumoral delivery of mAbs has been anticipated to resolve that issue. However, unlike the systemic mAbs administration, for which formidable but surmountable obstacles (big size of mAbs ~150 kD, high interstitial fluid pressure in solid tumors, etc.) have been known to hamper mAbs delivery to cancer and tumor-infiltrating cells, the lack of effects of intratumoral mAbs administration remains completely incomprehensible and needs a new theoretical reconsideration that we have attempted in our analysis. It can be suggested that the limited benefits of the intratumoral mAbs administration appeared to be rooted in the same problem that hindered the effects of systemic mAbs administration: the inability to reach a sufficient number of cancer cells and tumor-infiltrating cells. We hypothesize that the core of the problem stems from the fact that the single-needle intratumoral injection forms a very localized, jet-like distribution of the drug (mAbs) that constitutes only a small fraction of the total volume of the tumor. In this light we are re-evaluating the theoretical reasonableness of the single-needle intratumoral injection approach. We propose that multi-needle injection will circumvent this limitation and for that we analyze the behavior of an injectant in tissues using different configurations of the injection needles. To accomplish this goal, we created a model of injectant distribution in a solid tissue based on the traditional technique of single-needle injection and then extended that model to a case of simultaneous multi-needle injection. To develop the model of drug delivery and transport in biological tissues, we followed a frequently used approach of modeling the diffusive transport of liquid through a porous media using the Darcy's law that relates the flow velocity, the pressure gradient, and the tissue permeability. The analysis demonstrates that a multi-needle injection setup provides a significantly more widespread and homogeneous injectant distribution within a solid tumor than that for a single needle injection for the same tumor size. Adding separate draining needles can further improve the delivery of injectant to cancer and tumor-infiltrating cells.
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Lei W, Qi S, Rong Q, Huang J, Xu Y, Fang R, Liu K, Jiang L, Liu M. Diffusion-Freezing-Induced Microphase Separation for Constructing Large-Area Multiscale Structures on Hydrogel Surfaces. Adv Mater 2019; 31:e1808217. [PMID: 31194272 DOI: 10.1002/adma.201808217] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 04/12/2019] [Indexed: 06/09/2023]
Abstract
Hydrogels with multiscale structured surface have attracted significant attention for their valuable applications in diverse areas. However, current strategies for the design and fabrication of structured hydrogel surfaces, which suffer from complicated manufacturing processes and specific material modeling, are not efficient to produce structured hydrogel surfaces in large area, and therefore restrict their practical applications. To address this problem, a general and reliable method is reported, which relies on the interplay between polymer chain diffusion and the subsequent freezing-induced gelation and microphase separation processes. The basic idea is systematically analyzed and further exploited to manufacture gel surfaces with gradient structures and patterns through the introduction of temperature gradient and shape control of the contact area. Moreover, the formed micro/nanostructured surfaces are exemplified to work as capillary systems and thus can uplift the liquid spontaneously indicating the potential application for anti-dehydration. It is believed that the proposed facile and large-area fabrication method can inspire the design of materials with various functionalized surfaces.
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Affiliation(s)
- Wenwei Lei
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Shuanhu Qi
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Qinfeng Rong
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Jin Huang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Yichao Xu
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Ruochen Fang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Kesong Liu
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Lei Jiang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Mingjie Liu
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
- International Research Institute for Multidisciplinary Science, Beihang University, Beijing, 100191, P. R. China
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10
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Vialetto J, Hayakawa M, Kavokine N, Takinoue M, Varanakkottu SN, Rudiuk S, Anyfantakis M, Morel M, Baigl D. Magnetic Actuation of Drops and Liquid Marbles Using a Deformable Paramagnetic Liquid Substrate. Angew Chem Int Ed Engl 2017; 56:16565-16570. [PMID: 29131511 PMCID: PMC5836889 DOI: 10.1002/anie.201710668] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 11/03/2017] [Indexed: 02/06/2023]
Abstract
The magnetic actuation of deposited drops has mainly relied on volume forces exerted on the liquid to be transported, which is poorly efficient with conventional diamagnetic liquids such as water and oil, unless magnetosensitive particles are added. Herein, we describe a new and additive‐free way to magnetically control the motion of discrete liquid entities. Our strategy consists of using a paramagnetic liquid as a deformable substrate to direct, using a magnet, the motion of various floating liquid entities, ranging from naked drops to liquid marbles. A broad variety of liquids, including diamagnetic (water, oil) and nonmagnetic ones, can be efficiently transported using the moderate magnetic field (ca. 50 mT) produced by a small permanent magnet. Complex trajectories can be achieved in a reliable manner and multiplexing potential is demonstrated through on‐demand drop fusion. Our paramagnetofluidic method advantageously works without any complex equipment or electric power, in phase with the necessary development of robust and low‐cost analytical and diagnostic fluidic devices.
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Affiliation(s)
- Jacopo Vialetto
- PASTEUR, Department of chemistry, École Normale Supérieure, UPMC Univ. Paris 06, CNRS, PSL Research University, 75005, Paris, France.,Sorbonne Universités, UPMC Univ. Paris 06, École Normale Supérieure, CNRS, PASTEUR, 75005, Paris, France
| | - Masayuki Hayakawa
- Department of Computer Science, Tokyo Institute of Technology, Kanagawa, 226-8502, Japan.,Current address: RIKEN Quantitative Biology Center, Kobe, 650-0047, Japan
| | - Nikita Kavokine
- PASTEUR, Department of chemistry, École Normale Supérieure, UPMC Univ. Paris 06, CNRS, PSL Research University, 75005, Paris, France.,Sorbonne Universités, UPMC Univ. Paris 06, École Normale Supérieure, CNRS, PASTEUR, 75005, Paris, France.,Laboratoire de Physique Statistique, Ecole Normale Supérieure, PSL Research University, 24 rue Lhomond, 75005, Paris, France
| | - Masahiro Takinoue
- Department of Computer Science, Tokyo Institute of Technology, Kanagawa, 226-8502, Japan
| | - Subramanyan Namboodiri Varanakkottu
- PASTEUR, Department of chemistry, École Normale Supérieure, UPMC Univ. Paris 06, CNRS, PSL Research University, 75005, Paris, France.,Sorbonne Universités, UPMC Univ. Paris 06, École Normale Supérieure, CNRS, PASTEUR, 75005, Paris, France.,Current address: School of Nano Science and Technology Calicut, National Institute of Technology, Kozhikode, India
| | - Sergii Rudiuk
- PASTEUR, Department of chemistry, École Normale Supérieure, UPMC Univ. Paris 06, CNRS, PSL Research University, 75005, Paris, France.,Sorbonne Universités, UPMC Univ. Paris 06, École Normale Supérieure, CNRS, PASTEUR, 75005, Paris, France
| | - Manos Anyfantakis
- PASTEUR, Department of chemistry, École Normale Supérieure, UPMC Univ. Paris 06, CNRS, PSL Research University, 75005, Paris, France.,Sorbonne Universités, UPMC Univ. Paris 06, École Normale Supérieure, CNRS, PASTEUR, 75005, Paris, France.,Current address: University of Luxembourg, Physics & Materials Science Research Unit, 162a Avenue de la Faiencerie, Luxembourg, L-1511, Luxembourg
| | - Mathieu Morel
- PASTEUR, Department of chemistry, École Normale Supérieure, UPMC Univ. Paris 06, CNRS, PSL Research University, 75005, Paris, France.,Sorbonne Universités, UPMC Univ. Paris 06, École Normale Supérieure, CNRS, PASTEUR, 75005, Paris, France
| | - Damien Baigl
- PASTEUR, Department of chemistry, École Normale Supérieure, UPMC Univ. Paris 06, CNRS, PSL Research University, 75005, Paris, France.,Sorbonne Universités, UPMC Univ. Paris 06, École Normale Supérieure, CNRS, PASTEUR, 75005, Paris, France
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11
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Zhou T, Yang J, Zhu D, Zheng J, Handschuh‐Wang S, Zhou X, Zhang J, Liu Y, Liu Z, He C, Zhou X. Hydrophilic Sponges for Leaf-Inspired Continuous Pumping of Liquids. Adv Sci (Weinh) 2017; 4:1700028. [PMID: 28638785 PMCID: PMC5473324 DOI: 10.1002/advs.201700028] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 03/09/2017] [Indexed: 05/14/2023]
Abstract
A bio-inspired, leaf-like pumping strategy by mimicking the transpiration process through leaves is developed for autonomous and continuous liquid transport enabled by durable hydrophilic sponges. Without any external power sources, flows are continuously generated ascribed to the combination of capillary wicking and evaporation of water. To validate this method, durable hydrophilic polydimethylsiloxane sponges modified with polyvinyl alcohol via a "dip-coat-dry" method have been fabricated, which maintains hydrophilicity more than 2 months. The as-made sponges are further applied to achieve stable laminar flow patterns, chemical gradients, and "stop-flow" manipulation of the flow in microfluidic devices. More importantly, the ease-of-operation and excellent pumping capacity have also been verified with over 24 h's pumping and quasi-stable high flow rates up to 15 µL min-1. The present strategy can be easily integrated to other miniaturized systems requiring pressure-driven flow and should have potential applications, such as cell culture, micromixing, and continuous flow reaction.
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Affiliation(s)
- Tingjiao Zhou
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Jinbin Yang
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Deyong Zhu
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Jieyao Zheng
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Stephan Handschuh‐Wang
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Xiaohu Zhou
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
- Department of ChemistryThe Chinese University of Hong KongShatin N.THong Kong SARP. R. China
| | - Junmin Zhang
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Yizhen Liu
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Zhou Liu
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Chuanxin He
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Xuechang Zhou
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
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12
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Tian D, Zhang N, Zheng X, Hou G, Tian Y, Du Y, Jiang L, Dou SX. Fast Responsive and Controllable Liquid Transport on a Magnetic Fluid/Nanoarray Composite Interface. ACS Nano 2016; 10:6220-6. [PMID: 27199104 DOI: 10.1021/acsnano.6b02318] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Controllable liquid transport on surface is expected to occur by manipulating the gradient of surface tension/Laplace pressure and external stimuli, which has been intensively studied on solid or liquid interface. However, it still faces challenges of slow response rate, and uncontrollable transport speed and direction. Here, we demonstrate fast responsive and controllable liquid transport on a smart magnetic fluid/nanoarray interface, i.e., a composite interface, via modulation of an external magnetic field. The wettability of the composite interface to water instantaneously responds to gradient magnetic field due to the magnetically driven composite interface gradient roughness transition that takes place within a millisecond, which is at least 1 order of magnitude faster than that of other responsive surfaces. A water droplet can follow the motion of the gradient composite interface structure as it responds to the gradient magnetic field motion. Moreover, the water droplet transport direction can be controlled by modulating the motion direction of the gradient magnetic field. The composite interface can be used as a pump for the transport of immiscible liquids and other objects in the microchannel, which suggests a way to design smart interface materials and microfluidic devices.
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Affiliation(s)
- Dongliang Tian
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University , Beijing 100191, P. R. China
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong , Innovation Campus, North Wollongong, New South Wales 2500, Australia
- UOW-BUAA Joint Research Centre, University of Wollongong , North Wollongong, New South Wales 2500, Australia
| | - Na Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University , Beijing 100191, P. R. China
| | - Xi Zheng
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University , Beijing 100191, P. R. China
| | - Guanglei Hou
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University , Beijing 100191, 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
| | - Yi Du
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong , Innovation Campus, North Wollongong, New South Wales 2500, Australia
- UOW-BUAA Joint Research Centre, University of Wollongong , North Wollongong, New South Wales 2500, Australia
| | - Lei Jiang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University , Beijing 100191, P. R. China
- Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
- UOW-BUAA Joint Research Centre, University of Wollongong , North Wollongong, New South Wales 2500, Australia
| | - Shi Xue Dou
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong , Innovation Campus, North Wollongong, New South Wales 2500, Australia
- UOW-BUAA Joint Research Centre, University of Wollongong , North Wollongong, New South Wales 2500, Australia
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13
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Zhang L, Zhao B, Jiang C, Yang J, Zheng G. Preparation and Transport Performances of High-Density, Aligned Carbon Nanotube Membranes. Nanoscale Res Lett 2015; 10:970. [PMID: 26100554 PMCID: PMC4477009 DOI: 10.1186/s11671-015-0970-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 06/02/2015] [Indexed: 06/04/2023]
Abstract
We report a simple and effective method for the preparation of high-density and aligned carbon nanotube (CNT) membranes. The CNT arrays were prepared by water-assisted chemical vapor deposition (CVD) and were subsequently pushed over and stacked into dense membranes by mechanical rolling. It was demonstrated that various gases and liquids, including H2, He, N2, O2, Ar, water, ethanol, hexane, and kerosene, could effectively pass through the aligned carbon nanotube membranes. The membranes exhibited different selections on different gases, indicating that there was a separation potential for the gas mixtures. The selectivities (H2 relative to other gases) of H2/He, H2/N2, H2/O2, and H2/Ar were found to be lower than that of the ideal Knudsen model. For pure water, the permeability was measured to be 3.23 ± 0.05 ml·min(-1)·cm(-2) at 1 atm, indicating that the CNT membranes were promising for applications in liquid filtration and separation.
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Affiliation(s)
- Lei Zhang
- />School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093 China
| | - Bin Zhao
- />School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093 China
| | - Chuan Jiang
- />School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093 China
| | - Junhe Yang
- />School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093 China
| | - Guangping Zheng
- />Department of Mechanical Engineering and Shenzhen Research Institute, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
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14
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Wang H, Zhou H, Yang W, Zhao Y, Fang J, Lin T. Selective, Spontaneous One-Way Oil-Transport Fabrics and Their Novel Use for Gauging Liquid Surface Tension. ACS Appl Mater Interfaces 2015; 7:22874-22880. [PMID: 26422530 DOI: 10.1021/acsami.5b05678] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Thin porous materials that can spontaneously transport oil fluids just in a single direction have great potential for making energy-saving functional membranes. However, there is little data for the preparation and functionalities of this smart material. Here, we report a novel method to prepare one-way oil-transport fabrics and their application in detecting liquid surface tension. This functional fabric was prepared by a two-step coating process to apply flowerlike ZnO nanorods, fluorinated decyl polyhedral oligomeric silsesquioxanes, and hydrolyzed fluorinated alkylsilane on a fabric substrate. Upon one-sided UV irradiation, the coated fabric shows a one-way transport feature that allows oil fluid transport automatically from the unirradiated side to the UV-irradiated surface, but it stops fluid transport in the opposite direction. The fabric still maintains high superhydrophobicity after UV treatment. The one-way fluid transport takes place only for the oil fluids with a specific surface tension value, and the fluid selectivity is dependent on the UV treatment time. Changing the UV irradiation time from 6 to 30 h broadened the one-way transport for fluids with surface tension from around 22.3 mN/m to a range of 22.3-56.7 mN/m. We further proved that this selective one-way oil transport can be used to estimate the surface tension of a liquid simply by observing its transport feature on a series of fabrics with different one-way oil-transport selectivities. To our knowledge, this is the first example to use one-way fluid-transport materials for testing the liquid surface tension. It may open up further theoretical studies and the development of novel fluid sensors.
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Affiliation(s)
- Hongxia Wang
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
| | - Hua Zhou
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
| | - Weidong Yang
- Future Manufacturing Flagship, CSIRO , Clayton South, Victoria 3169, Australia
| | - Yan Zhao
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
| | - Jian Fang
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
| | - Tong Lin
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
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15
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Yang F, Griffa M, Bonnin A, Mokso R, DI Bella C, Münch B, Kaufmann R, Lura P. Visualization of water drying in porous materials by X-ray phase contrast imaging. J Microsc 2015; 261:88-104. [PMID: 26469285 DOI: 10.1111/jmi.12319] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 08/30/2015] [Indexed: 11/30/2022]
Abstract
We present in this study results from X-ray tomographic microscopy with synchrotron radiation performed both in attenuation and phase contrast modes on a limestone sample during two stages of water drying. No contrast agent was used in order to increase the X-ray attenuation by water. We show that only by using the phase contrast mode it is possible to achieve enough water content change resolution to investigate the drying process at the pore-scale. We performed 3D image analysis of the time-differential phase contrast tomogram. We show by the results of such analysis that it is possible to obtain a reliable characterization of the spatial redistribution of water in the resolved pore system in agreement with what expected from the theory of drying in porous media and from measurements performed with other approaches. We thus show the potential of X-ray phase contrast imaging for pore-scale investigations of reactive water transport processes which cannot be imaged by adding a contrast agent for exploiting the standard attenuation contrast imaging mode.
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Affiliation(s)
- F Yang
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland.,Institute for Building Materials (IfB), Swiss Federal Institute of Technology Zurich (ETHZ), Zürich, Switzerland
| | - M Griffa
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
| | - A Bonnin
- Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland.,Center for Biomedical Imaging, Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne, Switzerland
| | - R Mokso
- Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
| | - C DI Bella
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland.,Institute for Building Materials (IfB), Swiss Federal Institute of Technology Zurich (ETHZ), Zürich, Switzerland
| | - B Münch
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
| | - R Kaufmann
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
| | - P Lura
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland.,Institute for Building Materials (IfB), Swiss Federal Institute of Technology Zurich (ETHZ), Zürich, Switzerland
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16
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Abstract
Padding is an essential component in a multilayer compression bandaging system, used inside the compression bandage through which substantial amount of pressure is exerted on the limb of patient for treatment of venous leg ulcers. As a result, the liquid transmission behavior of padding is also critical in managing body fluids or sweat exuded from the affected limb, reducing the excessive moisture build-up around the wound and thereby ensuring comfort to and hence a better compliance from the patients. This study investigates the in-plane fluid transport characteristics of needle-punched nonwoven padding bandages. It first reviewed the existing studies related to the problems, and discussed their limits and possible improvements in dealing with complex fluid transport issues in textile porous media. The measurement of fluid transport under different pressure levels was then done using a newly designed apparatus capable of simultaneously tracing the liquid in-plane spreading along different directions, and obtaining several transport characteristics of a testing sample, e.g. the liquid flow anisotropy, the rate of movement, the area of wet surface with time, etc. Also the effects of several important factors, such as the levels of pressure applied, the specimen bulk density, and needling density of the padding products, have been experimentally investigated. In addition, based on an extended Lucas-Washburn theory, we calculated the liquid flow distance, both instantaneous speed and a more useful time-averaged speed v(av) at any given direction, and also defined a flow anisotropy index I(A) as a convenient parameter to represent the material flow anisotropy. The applications of v(av) and I(A) to actual samples have demonstrated the usefulness of these parameters in characterizing the flow nature and behavior of the materials.
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Affiliation(s)
| | - Apurba Das
- Department of Textile Technology, IIT Delhi, Delhi, India
| | - Ning Pan
- Textiles and Clothing, UC Davis, CA, USA
| | - R Alagirusamy
- Department of Textile Technology, IIT Delhi, Delhi, India
| | - Rupali Gupta
- Department of Textile Technology, IIT Delhi, Delhi, India
| | - Jitender Singh
- Department of Textile Technology, IIT Delhi, Delhi, India
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