1
|
Wen K, Chen X, Cheng S, Wang X, Ma H, Song Q, Zhao Q, Tian H, Zhang J, Shao J. Modulation of wetting state switching of droplets on superhydrophobic microstructured surfaces by external electric field. J Colloid Interface Sci 2024; 672:533-542. [PMID: 38852354 DOI: 10.1016/j.jcis.2024.05.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/28/2024] [Accepted: 05/30/2024] [Indexed: 06/11/2024]
Abstract
HYPOTHESIS Electrowetting on conventional dielectrics requires direct fluid-electrode contact to generate strong electric fields at the three-phase contact line to modulate the wetting. Since the electric field alters wetting, the modulation of wetting can be achieved by applying an external electric field through insulated electrodes, preventing the liquid from contacting the electrodes. EXPERIMENT A simple and efficient method for non-contact between the fluid and the electrode external electric field modulation of fluid wetting was proposed. The switching ability of droplets on microgroove surfaces from Cassie-Baxter to Wenzel wetting state under an external electric field was used to drive and quantify the relationship between wetting, contact angle, and the applied voltage. FINDINGS Applying an external electric field modulates the wetting of deionized water, ionic liquids, and high-viscosity liquids on microgrooves. The wetting degree of liquid can be controlled by adjusting the external voltage parameters. The finite element simulations revealed that the Maxwell force drove this process. The effects of substrate size and liquid properties on wetting behavior were also examined. Post-application cross-sectional imaging showed the formation of a conformal interface, highlighting the relevance of the proposed method in advanced adaptive shape fabrication and microfluidic control, among other applications.
Collapse
Affiliation(s)
- Kaiqiang Wen
- Micro- and Nanotechnology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Xiaoming Chen
- Micro- and Nanotechnology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China; XJTU-POLIMI Joint School of Design and Innovation, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
| | - Siyi Cheng
- Micro- and Nanotechnology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Xin Wang
- Micro- and Nanotechnology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Hechuan Ma
- Micro- and Nanotechnology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Qihang Song
- Micro- and Nanotechnology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Quanyi Zhao
- Micro- and Nanotechnology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Hongmiao Tian
- Micro- and Nanotechnology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Jie Zhang
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Jinyou Shao
- Micro- and Nanotechnology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| |
Collapse
|
2
|
Jia H, Li X, Chen K, Yang F, Ren H, Li H, Li C. Enhancing Directional Droplet Transport via Surface Charge Gradient: Insights from Molecular Dynamics Simulations. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39258984 DOI: 10.1021/acs.langmuir.4c02642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2024]
Abstract
The phenomenon of spontaneous droplet transport has a wide range of implications in water collection, microfluidic manipulation, oil-water separation, and various other fields. Achieving efficient and controllable spontaneous droplet transport is therefore of paramount importance. This study investigates the potential of surface charge manipulation to enhance spontaneous droplet transport through comprehensive molecular dynamics simulations. Our findings reveal that the surface charge of the substrate significantly influences its wettability, reducing the contact angle of the droplet and increasing both the contact area and interaction energy. Moreover, we introduce a novel approach to enhance droplet mobility by creating a surface charge gradient on the substrate. By introducing bands with varying charges along a specific direction of the substrate, the droplet experiences a force directed toward regions of increasing charge, thereby facilitating its movement. Importantly, the driving mechanism of droplet motion is well explained by combining classical electrowetting theory with the analysis of the droplet's advancing and receding contact angles, which demonstrates that a more pronounced surface charge gradient generates greater force and enhances droplet mobility. These findings offer valuable insights into the design of microfluidic systems and related applications based on electrowetting.
Collapse
Affiliation(s)
- Huiru Jia
- Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an 710072, China
| | - Xuhao Li
- Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an 710072, China
| | - Kang Chen
- Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an 710072, China
| | - Fan Yang
- School of Urban Planning and Municipal Engineering, Xi'an Polytechnic University, Xi'an 710048, China
| | - Hongru Ren
- School of Science, Chang'an University, Xi'an 710064, China
| | - Huan Li
- Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an 710072, China
- Innovation Center, NPU Chongqing, Chongqing 401135, China
| | - Chun Li
- Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an 710072, China
| |
Collapse
|
3
|
Li S, Wang W, Wu H, Zhang X, Liang R, Zhang X, Song G, Jing J, Li S, Zhou M. Performance enhancement and mechanism of electroenhanced peroxymonosulfate activation by single-atom Fe catalyst modified electrodes. Proc Natl Acad Sci U S A 2024; 121:e2404965121. [PMID: 39236234 PMCID: PMC11406293 DOI: 10.1073/pnas.2404965121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 07/20/2024] [Indexed: 09/07/2024] Open
Abstract
Peroxymonosulfate-based electrochemical advanced oxidation processes (PMS-EAOPs) have great potential for sustainable water purification, so an in-depth understanding of its catalytic mechanism is imperative to facilitate its practical application. Herein, the performance enhancement and mechanism of electroenhanced PMS activation by single-atom Fe catalyst modified carbon felt was investigated. Compared with the anode, the cathode exhibited faster bisphenol A degradation (kcathode = 0.073 vs. kanode = 0.015 min-1), increased PMS consumption (98.8 vs. 10.3%), and an order of magnitude reduction of Fe dissolution (0.068 vs. 0.787 mg L-1). Mass transfer is a key factor limiting PMS activation, while the electrostriction of water in the hydrophobic region caused by cathode electric field (CEF) significantly increased mass transfer coefficient (km, cathode = 1.49 × 10-4 vs. km, anode = 2.68 × 10-5 m s-1). The enhanced activation of PMS is a synergistic result between electroactivation and catalyst-activation, which is controlled by the applied current density. 1O2 and direct electron transfer are the main active species and activation pathway, which achieve high degradation efficiency over pH 3 to 10. Density functional theory calculations prove CEF increases the adsorption energy, lengthens the O-O bond in PMS, and promotes charge transfer. A flow-through convection unit achieves sustainable operation with high removal efficiency (99.5% to 97.5%), low electrical energy consumption (0.15 kWh log-1 m-3), and low Fe leaching (0.81% of the total single atom Fe). This work reveals the critical role of electric fields in modulating Fenton-like catalytic activity, which may advance the development of advanced oxidation processes and other electrocatalytic applications.
Collapse
Affiliation(s)
- Shuaishuai Li
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Carbon Neutrality Interdisciplinary Science Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Wei Wang
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Carbon Neutrality Interdisciplinary Science Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Huizhong Wu
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Carbon Neutrality Interdisciplinary Science Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Xiuwu Zhang
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Carbon Neutrality Interdisciplinary Science Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Ruiheng Liang
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Carbon Neutrality Interdisciplinary Science Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Xuyang Zhang
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Carbon Neutrality Interdisciplinary Science Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Ge Song
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Carbon Neutrality Interdisciplinary Science Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Jiana Jing
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Carbon Neutrality Interdisciplinary Science Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Shasha Li
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Carbon Neutrality Interdisciplinary Science Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Minghua Zhou
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Carbon Neutrality Interdisciplinary Science Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| |
Collapse
|
4
|
Yang Y, Jiang P, Li H, Li W, Li D, Yan X, Zhu X, Ye D, Yang Y, Wang H, Chen R, Liao Q. Photothermal-Driven Droplet Manipulation: A Perspective. J Phys Chem Lett 2024; 15:8877-8895. [PMID: 39171577 DOI: 10.1021/acs.jpclett.4c01977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Optofluidics, which utilizes the interactions between light and fluids to realize various functions, has garnered increasing attention owing to the advantages of operational simplicity, exceptional flexibility, rapid response, etc. As one of the typical light-fluid interactions, the localized photothermal effect serving as a stimulus has been widely used for fluid manipulation. Particularly, significant progress on photothermal-driven droplet manipulation has been made. In this perspective, recent advancements in localized photothermal effect driven droplet manipulation are summarized. First, the photothermal manipulation of droplets on open surfaces is outlined. An attractive droplet manipulation of light droplet levitation above the gas-liquid interface via localized photothermal effect is then discussed. Besides, the photothermal-driven manipulation of droplets in an immiscible liquid phase is also discussed. Although promising, further development of photothermal-driven droplet manipulation is still needed. The challenges and perspectives of this light droplet manipulation strategy for broad implementation are summarized, which will help future studies and applications.
Collapse
Affiliation(s)
- Yijing Yang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Pengcheng Jiang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Haonan Li
- Institute of Laser Manufacturing, Henan Academy of Sciences, Zhengzhou 450046, P. R. China
| | - Wei Li
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Dongliang Li
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Xiao Yan
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Xun Zhu
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Dingding Ye
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Yang Yang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Hong Wang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Rong Chen
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Qiang Liao
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| |
Collapse
|
5
|
Zhao H, Wen R, Zhang L, Chen L, Li H, Xia F, Song Y. Magneto-Controlled Tubular Liquid Actuators with Pore Engineering for Liquid Transport and Regulation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2406325. [PMID: 39137359 DOI: 10.1002/advs.202406325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/08/2024] [Indexed: 08/15/2024]
Abstract
Liquid manipulation using tubular actuators finds diverse applications ranging from microfluidics, printing, liquid transfer to micro-reactors. Achieving flexible and simple regulation of manipulated liquid droplets during transport is crucial for the tubular liquid actuators to perform complex and multiple functions, yet it remains challenging. Here, a facile tubular actuator for directional transport of various liquid droplets under the control of an externally applied magnetic field is presented. The surfaces of the actuator can be engineered with submillimeter-sized through-hole pores, which enables the liquid droplet to be easily modulated in the transport process. Furthermore, the liquid actuator with featured through-hole pores is expanded to function as a switch in an integrated external electric circuit by magnetically controlling the motion of a conductive liquid droplet. This work develops a strategy for regulating liquid droplets in the tubular actuation systems, which may inspire ideas for designing functional liquid actuators with potential applications in microfluidics, microchemical reaction, liquid switch, and liquid robotics.
Collapse
Affiliation(s)
- Huan Zhao
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Ruyi Wen
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Liyun Zhang
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Linfeng Chen
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Huizeng Li
- Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
| | - Fan Xia
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Yanlin Song
- Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
| |
Collapse
|
6
|
Liu M, Hua J, Du X. Smart materials for light control of droplets. NANOSCALE 2024. [PMID: 38624048 DOI: 10.1039/d3nr05593k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Droplet manipulation plays a critical role in both fundamental research and practical applications, especially when combined with smart materials and external fields to achieve multifunctional droplet manipulation. Light control of droplets has emerged as a significant and widely used strategy, driven primarily by photochemistry, photomechanics, light-induced Marangoni effects, and light-induced electric effects. This approach allowing for droplet manipulation with high spatial and temporal resolution, all while maintaining a remote and non-contact mode of operation. This review aims to provide a comprehensive overview of the mechanisms underlying light control of droplets, the design of smart materials for this purpose, and the diverse range of applications enabled by this technique. These applications include merging, splitting, releasing, forwarding, backward movement, and rotation of droplets, as well as chemical reactions, droplet robots, and microfluidics. By presenting this information, we aim to establish a unified framework that guides the sustainable development of light control of droplets. Additionally, this review addresses the challenges associated with light control of droplets and suggests potential directions for future development.
Collapse
Affiliation(s)
- Meijin Liu
- Institute of Biomedical & Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - Jiachuan Hua
- Institute of Biomedical & Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - Xuemin Du
- Institute of Biomedical & Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| |
Collapse
|
7
|
Cheng G, Kuan CY, Lou KW, Ho YP. Light-Responsive Materials in Droplet Manipulation for Biochemical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2313935. [PMID: 38379512 DOI: 10.1002/adma.202313935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/31/2024] [Indexed: 02/22/2024]
Abstract
Miniaturized droplets, characterized by well-controlled microenvironments and capability for parallel processing, have significantly advanced the studies on enzymatic evolution, molecular diagnostics, and single-cell analysis. However, manipulation of small-sized droplets, including moving, merging, and trapping of the targeted droplets for complex biochemical assays and subsequent analysis, is not trivial and remains technically demanding. Among various techniques, light-driven methods stand out as a promising candidate for droplet manipulation in a facile and flexible manner, given the features of contactless interaction, high spatiotemporal resolution, and biocompatibility. This review therefore compiles an in-depth discussion of the governing mechanisms underpinning light-driven droplet manipulation. Besides, light-responsive materials, representing the core of light-matter interaction and the key character converting light into different forms of energy, are particularly assessed in this review. Recent advancements in light-responsive materials and the most notable applications are comprehensively archived and evaluated. Continuous innovations and rational engineering of light-responsive materials are expected to propel the development of light-driven droplet manipulation, equip droplets with enhanced functionality, and broaden the applications of droplets for biochemical studies and routine biochemical investigations.
Collapse
Affiliation(s)
- Guangyao Cheng
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China
| | - Chit Yau Kuan
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China
| | - Kuan Wen Lou
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong SAR, 999077, China
| | - Yi-Ping Ho
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong SAR, 999077, China
- Centre for Novel Biomaterials, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China
- Hong Kong Branch of CAS Center for Excellence in Animal Evolution and Genetics, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China
- The Ministry of Education Key Laboratory of Regeneration Medicine, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China
| |
Collapse
|
8
|
Naderer C, Krobath H, Sivun D, Gvindzhiliia G, Klar TA, Jacak J. New buffer systems for photopainting of single biomolecules. RSC APPLIED INTERFACES 2024; 1:110-121. [PMID: 39166527 PMCID: PMC10805099 DOI: 10.1039/d3lf00125c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/03/2023] [Indexed: 08/23/2024]
Abstract
We present newly developed buffer systems that significantly improve the efficiency of a photochemically induced surface modification at the single molecule level. Buffers with paramagnetic cations and radical oxygen promoting species facilitate laser-assisted protein adsorption by photobleaching (LAPAP) of single fluorescently labelled oligonucleotides or biotin onto multi-photon-lithography-structured 2D and 3D acrylate scaffolds. Single molecule fluorescence microscopy has been used to quantify photopainting efficiency. We identify specific cation interaction sites for members of the cyanine, coumarin and rhodamine classes of fluorophores using quantum mechanical calculations. We show that our buffer systems provide an up to three-fold LAPAP-efficiency increase for the cyanine fluorophore, while keeping excitation parameters constant.
Collapse
Affiliation(s)
- Christoph Naderer
- School of Medical Engineering and Applied Social Sciences, University of Applied Sciences Upper Austria Garnisonstraße 21 4020 Linz Austria
| | - Heinrich Krobath
- Institute of Theoretical Physics, Johannes Kepler University Linz Altenberger Straße 69 4040 Linz Austria
| | - Dmitry Sivun
- School of Medical Engineering and Applied Social Sciences, University of Applied Sciences Upper Austria Garnisonstraße 21 4020 Linz Austria
| | - Georgii Gvindzhiliia
- Institute of Applied Physics, Johannes Kepler University Linz Altenberger Straße 69 4040 Linz Austria
| | - Thomas A Klar
- Institute of Applied Physics, Johannes Kepler University Linz Altenberger Straße 69 4040 Linz Austria
| | - Jaroslaw Jacak
- School of Medical Engineering and Applied Social Sciences, University of Applied Sciences Upper Austria Garnisonstraße 21 4020 Linz Austria
| |
Collapse
|
9
|
Nadzharyan TA, Kramarenko EY. Effects of Filler Anisometry on the Mechanical Response of a Magnetoactive Elastomer Cell: A Single-Inclusion Modeling Approach. Polymers (Basel) 2023; 16:118. [PMID: 38201782 PMCID: PMC10780330 DOI: 10.3390/polym16010118] [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: 12/03/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
A finite-element model of the mechanical response of a magnetoactive elastomer (MAE) volume element is presented. Unit cells containing a single ferromagnetic inclusion with geometric and magnetic anisotropy are considered. The equilibrium state of the cell is calculated using the finite-element method and cell energy minimization. The response of the cell to three different excitation modes is studied: inclusion rotation, inclusion translation, and uniaxial cell stress. The influence of the magnetic properties of the filler particles on the equilibrium state of the MAE cell is considered. The dependence of the mechanical response of the cell on the filler concentration and inclusion anisometry is calculated and analyzed. Optimal filler shapes for maximizing the magnetic response of the MAE are discussed.
Collapse
|
10
|
Chen Z, Zhou W, Wei Y, Shi L, Zhang Z, Dadgar M, Zhu G, Zhang G. Preparation and performance of a stimuli-responsive drug delivery system: novel light-triggered temperature-sensitive drug-loaded microcapsules. J Mater Chem B 2023; 11:9757-9764. [PMID: 37807767 DOI: 10.1039/d3tb01836a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Stimuli-responsive/smart drug delivery systems (DDSs), particularly those that use temperature as a stimuli-response factor to activate drug release, are the subject of recent research. A phase change material (PCM) is a popular thermally responsive material that can be used as a drug carrier and only when the system temperature is above the phase change point is the drug released following the phase change material changing from solid to liquid. In this study, a novel NIR light-triggered temperature-sensitive drug delivery system is developed for controllable release of acyclovir (ACV). For this purpose, a mixture of a phase change material (T38) and an ACV compound is first emulsified with copper oxide nanoparticles (CuO NPs) as a Pickering stabilizer and a photothermal conversion material, and then encapsulated with SiO2 to form a photothermal stimuli-responsive delivery system. This system shows a uniform spherical shape with a well-distinct core-shell structure, and is further experimentally proven to be able to controllably release drugs with solid-liquid transition of the phase change carrier upon temperature change. These results indicate that cumulative release of ACV can reach 51.2% at 40 °C within 20 hours, which is much higher than 27.3% release achieved below the melting point of T38. In addition, CuO NPs with excellent photothermal conversion ability endow the system with precisely controllable drug delivery via NIR light stimulation, where the cumulative drug release can reach 83.6% after 7 cycles of light stimulation, allowing controlled release at a specific time or location.
Collapse
Affiliation(s)
- Zhengguo Chen
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Wangting Zhou
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yujing Wei
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Lingling Shi
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Zhaoxia Zhang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Mehran Dadgar
- Department of Textile, University of Neyshabur, Adib Boulevard, Khorasan Razavi Province, Iran
| | - Guocheng Zhu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Guoqing Zhang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| |
Collapse
|
11
|
Wang L, Jiang G, Zhu D, Tian Z, Chen C, Hu X, Peng R, Li D, Zhang H, Zhao H, Fan P, Zhong M. Self-Driven Droplet Motions Below their Icing Points. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302339. [PMID: 37312674 DOI: 10.1002/smll.202302339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/18/2023] [Indexed: 06/15/2023]
Abstract
Liquid fluidity is a most key prerequisite for a broad range of technologies, from energy, fluid machineries, microfluidic devices, water, and oil transportation to bio-deliveries. While from thermodynamics, the liquid fluidity gradually diminishes as temperature decreases until completely solidified below icing points. Here, self-driven droplet motions are discovered and demonstrated occurring in icing environments and accelerating with both moving distances and droplet volumes. The self-driven motions, including self-depinning and continuous wriggling, require no surface pre-preparation or energy input but are triggered by the overpressure spontaneously established during icing and then continuously accelerated by capillary pulling of frosts. Such self-driven motions are generic to a broad class of liquid types, volumes, and numbers on various micro-nanostructured surfaces and can be facilely manipulated by introducing pressure gradients spontaneously or externally. The discovery and control of self-driven motions below icing points can greatly broaden liquid-related applications in icing environments.
Collapse
Affiliation(s)
- Lizhong Wang
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), Joint Research Center for Advanced Materials & Anti-icing of Tsinghua University (SMSE)-AVIC ARI, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Guochen Jiang
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), Joint Research Center for Advanced Materials & Anti-icing of Tsinghua University (SMSE)-AVIC ARI, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Dongyu Zhu
- Shenyang Key Laboratory of Aircraft Icing and Ice Protection, AVIC Aerodynamics Research Institute, Shenyang, Liaoning, 110034, P. R. China
| | - Ze Tian
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), Joint Research Center for Advanced Materials & Anti-icing of Tsinghua University (SMSE)-AVIC ARI, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Changhao Chen
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), Joint Research Center for Advanced Materials & Anti-icing of Tsinghua University (SMSE)-AVIC ARI, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Xinyu Hu
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), Joint Research Center for Advanced Materials & Anti-icing of Tsinghua University (SMSE)-AVIC ARI, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Rui Peng
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), Joint Research Center for Advanced Materials & Anti-icing of Tsinghua University (SMSE)-AVIC ARI, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Daizhou Li
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), Joint Research Center for Advanced Materials & Anti-icing of Tsinghua University (SMSE)-AVIC ARI, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Hongjun Zhang
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), Joint Research Center for Advanced Materials & Anti-icing of Tsinghua University (SMSE)-AVIC ARI, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Huanyu Zhao
- Shenyang Key Laboratory of Aircraft Icing and Ice Protection, AVIC Aerodynamics Research Institute, Shenyang, Liaoning, 110034, P. R. China
| | - Peixun Fan
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), Joint Research Center for Advanced Materials & Anti-icing of Tsinghua University (SMSE)-AVIC ARI, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Minlin Zhong
- Laser Materials Processing Research Center, Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), Joint Research Center for Advanced Materials & Anti-icing of Tsinghua University (SMSE)-AVIC ARI, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| |
Collapse
|
12
|
Gong L, Cretella A, Lin Y. Microfluidic systems for particle capture and release: A review. Biosens Bioelectron 2023; 236:115426. [PMID: 37276636 DOI: 10.1016/j.bios.2023.115426] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 05/17/2023] [Accepted: 05/24/2023] [Indexed: 06/07/2023]
Abstract
Microfluidic technology has emerged as a promising tool in various applications, including biosensing, disease diagnosis, and environmental monitoring. One of the notable features of microfluidic devices is their ability to selectively capture and release specific cells, biomolecules, bacteria, and particles. Compared to traditional bulk analysis instruments, microfluidic capture-and-release platforms offer several advantages, such as contactless operation, label-free detection, high accuracy, good sensitivity, and minimal reagent requirements. However, despite significant efforts dedicated to developing innovative capture mechanisms in the past, the release and recovery efficiency of trapped particles have often been overlooked. Many previous studies have focused primarily on particle capture techniques and their efficiency, disregarding the crucial role of successful particle release for subsequent analysis. In reality, the ability to effectively release trapped particles is particularly essential to ensure ongoing, high-throughput analysis. To address this gap, this review aims to highlight the importance of both capture and release mechanisms in microfluidic systems and assess their effectiveness. The methods are classified into two categories: those based on physical principles and those using biochemical approaches. Furthermore, the review offers a comprehensive summary of recent applications of microfluidic platforms specifically designed for particle capture and release. It outlines the designs and performance of these devices, highlighting their advantages and limitations in various target applications and purposes. Finally, the review concludes with discussions on the current challenges faced in the field and presents potential future directions.
Collapse
Affiliation(s)
- Liyuan Gong
- Department of Mechanical, Industrial and Systems Engineering, University of Rhode Island, Kingston, RI, 02881, USA
| | - Andrew Cretella
- Department of Mechanical, Industrial and Systems Engineering, University of Rhode Island, Kingston, RI, 02881, USA
| | - Yang Lin
- Department of Mechanical, Industrial and Systems Engineering, University of Rhode Island, Kingston, RI, 02881, USA.
| |
Collapse
|
13
|
Bai H, Wang X, Li Z, Wen H, Yang Y, Li M, Cao M. Improved Liquid Collection on a Dual-Asymmetric Superhydrophilic Origami. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211596. [PMID: 36807414 DOI: 10.1002/adma.202211596] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/14/2023] [Indexed: 05/17/2023]
Abstract
Manipulating fluid with an open channel provides a promising strategy to simplify the current systems. Nevertheless, spontaneous on-surface fluid transport with large flux, high speed, and long distance remains challenging. Inspired by scallop shells, here a shell-like superhydrophilic origami (S-SLO) with multiple-paratactic and dual-asymmetric channels is presented to improve fluid collection. The origami channel can capture various types of liquids, including droplets, flow, and steam, and then transport collected liquid unidirectionally. The S-SLO with 2 mm depth can reach maximum flux of 450 mL h-1 , which is five times the capacity of a flat patterned surface with similar dimension. To diversify the function of such interface, the SLO is further integrated with a superhydrophobic zirconium carbide/silicone coating for enhanced condensation via the collaboration of directional fluid manipulation and a radiative cooling layer. Compared with the unmodified parallel origami, the shell-like origami with a radiative cooling layer shows a 56% improvement in condensate efficiency as well as the directional liquid drainage. This work demonstrates a more accessible design for the optimization of on-surface fluid control, and the improved performance of liquid transport should extend the applications of bioinspired fluid-manipulating interfaces.
Collapse
Affiliation(s)
- Haoyu Bai
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin, 300350, P. R. China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, P. R. China
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Xinsheng Wang
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin, 300350, P. R. China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, P. R. China
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Zhe Li
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin, 300350, P. R. China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, P. R. China
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Huiyi Wen
- Tabor Academy, Marion, MA, 02738, USA
| | - Yifan Yang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Muqian Li
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Moyuan Cao
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin, 300350, P. R. China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, P. R. China
| |
Collapse
|
14
|
Zhang Y, Wang T, Lv Y. Durable Biomimetic Two-Tier Structured Superhydrophobic Surface with Ultralow Adhesion and Effective Antipollution Property. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:2548-2557. [PMID: 36762501 DOI: 10.1021/acs.langmuir.2c02756] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Superhydrophobic surfaces with low adhesion have attracted great attention in recent years owing to their extensive applications. Enlightened by multifunctional rice leaves, a micro/nanobinary structured superhydrophobic surface was successfully fabricated on the Ti6Al4V substrate by photoetching, acid etching, alkaline etching, as well as fluorination treatments. Water droplets exhibited a Cassie impregnating wetting state on this superhydrophobic surface, under which the contact area fraction of the liquid-air interface caused by primary micron-scale stripped bumps (fp) and secondary nanoflower-like structures (fs) were calculated for the first time. The water adhesion force of this nonwetting surface was precisely measured as 7 μN, which was much lower than that (362 μN) of the original flat substrate and the previous reported surfaces. Moreover, this low-adhesive surface displayed good chemical stability after exposing to air, soaking in aqueous solutions (acid, alkaline, and salt), and cyclic icing/melting treatment. It also showed good mechanical durability after a series of abrasion treatments. Besides, this multifunctional superhydrophobic surface exhibited superior antipollution property to different kinds of contaminants. This multifunctional superhydrophobic surface displays a huge potential for industrial droplet transportation and self-cleaning applications.
Collapse
Affiliation(s)
- Yue Zhang
- College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Tao Wang
- College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Yujia Lv
- College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| |
Collapse
|
15
|
Yuan L, Chen J, Li Y, Luo G, Gao Z, Zhou C, Li H, Xu P, Zong C. Flexible Azo-Polyimide-Based Smart Surface with Photoregulatable Surface Micropatterns: Toward Rewritable Information Storage and Wrinkle-Free Device Fabrication. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:2787-2796. [PMID: 36757158 DOI: 10.1021/acs.langmuir.2c03278] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Stimulus-sensitive materials are of great fascination in surface and interface science owing to their dynamically tunable surface properties and/or morphologies. Herein, we have synthesized an azobenzene-containing polyimide (azo-PI) with enhanced chain flexibility for the fabrication of photosensitive surface patterns on a film/substrate wrinkle system or wrinkle-free devices. The phototriggered cis-trans isomerization kinetics of azobenzene groups in the novel azo-PI with various chain structures were systematically investigated. On the basis of the characteristics of stress relaxation that azobenzene reversible cis-trans isomerization induces in the wrinkled azo-PI film/substrate system, a variety of rewritable visual surface patterns with high resolution and a long legibility time (>30 days) could be easily constructed via visible-light irradiation, enabling the wrinkled azo-PI surfaces to be used as rewritable information storage media. Meanwhile, because of the visible-light irradiation strategy, these photoresponsive surfaces could find potential application in the fabrication of wrinkle-free flexible devices. This study not only sheds light on the influence of the azo-polymer chain structure on its photoresponsive behavior but also provides a versatile strategy for realizing tailor-made smart surface patterns on multilayer functional devices.
Collapse
Affiliation(s)
- Liang Yuan
- Shandong Key Laboratory of Fluorine Chemistry and Chemical Engineering Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Jian Chen
- Shandong Key Laboratory of Fluorine Chemistry and Chemical Engineering Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Yuxin Li
- Shandong Key Laboratory of Fluorine Chemistry and Chemical Engineering Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Guangzeng Luo
- Shandong Key Laboratory of Fluorine Chemistry and Chemical Engineering Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Zhilu Gao
- Shandong Key Laboratory of Fluorine Chemistry and Chemical Engineering Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Chunhua Zhou
- Shandong Key Laboratory of Fluorine Chemistry and Chemical Engineering Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Hui Li
- Shandong Key Laboratory of Fluorine Chemistry and Chemical Engineering Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Peiming Xu
- Taishan Sports Industry Group Company, Ltd., Dezhou 253600, P. R. China
- School of Physical Education, Shandong University, Jinan 250061, P. R. China
| | - Chuanyong Zong
- Shandong Key Laboratory of Fluorine Chemistry and Chemical Engineering Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
- Taishan Sports Industry Group Company, Ltd., Dezhou 253600, P. R. China
| |
Collapse
|
16
|
Wang X, Bai H, Li Z, Cao M. Fluid manipulation via multifunctional lubricant infused slippery surfaces: principle, design and applications. SOFT MATTER 2023; 19:588-608. [PMID: 36633123 DOI: 10.1039/d2sm01547a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Water-repellent interfaces with high performance have emerged as an indispensable platform for developing advanced materials and devices. Inspired by the pitcher plant, slippery liquid-infused porous surfaces (SLIPSs) with reliable hydrophobicity have proven to possess great potential for various applications in droplet and bubble manipulation, droplet energy harvesting, condensation, fog collection, anti-icing, and anti-biofouling due to their excellent properties such as persistent surface hydrophobicity, molecular smoothness, and fluidity. This review aims to introduce the development history of interaction between SLIPSs and fluids as well as the design principles, preparation methods, and various applications of some of the more typical SLIPSs. The fluid manipulation strategies of the slippery surfaces have been proposed including the wettability pattern, oriented micro-structure, and geometric gradient. At last, the application prospects of SLIPSs in various fields and the challenges in the design and fabrication of slippery surfaces are analyzed. We envision that this review can provide an overview of the fluid manipulating processes on slippery surfaces for researchers in both academic and industrial fields.
Collapse
Affiliation(s)
- Xinsheng Wang
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin, 300350, P. R. China.
| | - Haoyu Bai
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin, 300350, P. R. China.
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Zhe Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Moyuan Cao
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin, 300350, P. R. China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300072, P. R. China.
| |
Collapse
|
17
|
Zhang Q, Li K, Li Y, Li Y, Zhang X, Du Y, Tian D. Gradient monolayered porous membrane for liquid manipulation: from fabrication to application. NANOSCALE ADVANCES 2022; 4:3495-3503. [PMID: 36134360 PMCID: PMC9400516 DOI: 10.1039/d2na00421f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 07/21/2022] [Indexed: 06/16/2023]
Abstract
The controlled transport of liquid on a smart material surface has important applications in the fields of microreactors, mass and heat transfer, water collection, microfluidic devices and so on. Porous membranes with special wettability have attracted extensive attention due to their unique unidirectional transport behavior, that is, liquid can easily penetrate in one direction while reverse transport is prevented, which shows great potential in functional textiles, fog collection, oil/water separation, sensors, etc. However, many porous membranes are synthesized from multilayer structural materials with poor mechanical properties and are currently prone to delamination, which limits their stability. While a monolayered porous membrane, especially for gradient structure, is an efficient, stable and durable material owing to its good durability and difficult stratification. Therefore, it is of great significance to fabricate a monolayered porous membrane for controllable liquid manipulation. In this minireview, we briefly introduce the classification and fabrication of typical monolayered porous membranes. And the applications of monolayered porous membranes in unidirectional penetration, selective separation and intelligent response are further emphasized and discussed. Finally, the controllable preparation and potential applications of porous membranes are featured and their prospects discussed on the basis of their current development.
Collapse
Affiliation(s)
- Qiuya Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry, Beihang University Beijing 100191 P. R. China
- School of Physics, Beihang University Beijing 100191 P. R. China
| | - Ke Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Yuliang Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Yan Li
- 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 & Technology Beijing Beijing 100083 P. R. China
| | - Yi Du
- School of Physics, Beihang University Beijing 100191 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
| |
Collapse
|
18
|
Wang F, Liu M, Liu C, Huang C, Zhang L, Cui A, Hu Z, Du X. Light control of droplets on photo-induced charged surfaces. Natl Sci Rev 2022; 10:nwac164. [PMID: 36684525 PMCID: PMC9843135 DOI: 10.1093/nsr/nwac164] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 07/20/2022] [Indexed: 01/25/2023] Open
Abstract
The manipulation of droplets plays a vital role in fundamental research and practical applications, from chemical reactions to bioanalysis. As an intriguing and active format, light control of droplets, typically induced by photochemistry, photomechanics, light-induced Marangoni effects or light-induced electric fields, enables remote and contactless control with remarkable spatial and temporal accuracy. However, current light control of droplets suffers from poor performance and limited reliability. Here we develop a new superamphiphobic material that integrates the dual merits of light and electric field by rationally preparing liquid metal particles/poly(vinylidene fluoride-trifluoroethylene) polymer composites with photo-induced charge generation capability in real time, enabling light control of droplets on the basis of photo-induced dielectrophoretic force. We demonstrate that this photo-induced charged surface (PICS) imparts a new paradigm for controllable droplet motion, including high average velocity (∼35.9 mm s-1), unlimited distance, multimode motions (e.g. forward, backward and rotation) and single-to-multiple droplet manipulation, which are otherwise unachievable in conventional strategies. We further extend light control of droplets to robotic and bio-applications, including transporting a solid cargo in a closed tube, crossing a tiny tunnel, avoiding obstacles, sensing the changing environment via naked-eye color shift, preparing hydrogel beads, transporting living cells and reliable biosensing. Our PICS not only provides insight into the development of new smart interface materials and microfluidics, but also brings new possibilities for chemical and biomedical applications.
Collapse
Affiliation(s)
| | | | | | - Chao Huang
- Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Lidong Zhang
- Department of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Anyang Cui
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics and Advanced Instrument (Ministry of Education), Department of Physics, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Zhigao Hu
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics and Advanced Instrument (Ministry of Education), Department of Physics, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | | |
Collapse
|
19
|
Yang Y, Chen R, Zhu X, Ye D, Yang Y, Li W, Li D, Li H, Liao Q. Light-Fueled Submarine-Like Droplet. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201341. [PMID: 35596606 PMCID: PMC9313504 DOI: 10.1002/advs.202201341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/25/2022] [Indexed: 06/15/2023]
Abstract
Flexibly and precisely manipulating 3D droplet transportation is a fundamental challenge for broad implications in diagnostics, drug delivery, bioengineering, etc. Herein, a light method is developed for manipulating a droplet to make it behave like a submarine. This light method enables flexible 3D transportation, stable suspension, and floating of a droplet, which can be freely altered. It is demonstrated that the localized photothermal effect induced thermocapillary flow in the water droplet/oil phase is responsible for energizing and manipulating the droplet. With such remarkable motility, the light-fueled submarine-like droplet successfully realizes various functions such as the acid-base detection, particle capture and transportation, and target crystal collection, dissolution and transportation. It is demonstrated that the light-fueled submarine-like droplet shows promising perspective for long-sought precise droplet manipulation in various applications.
Collapse
Affiliation(s)
- Yijing Yang
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Chongqing University)Ministry of EducationChongqing400030China
- Institute of Engineering ThermophysicsSchool of Energy and Power EngineeringChongqing UniversityChongqing400030China
| | - Rong Chen
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Chongqing University)Ministry of EducationChongqing400030China
- Institute of Engineering ThermophysicsSchool of Energy and Power EngineeringChongqing UniversityChongqing400030China
| | - Xun Zhu
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Chongqing University)Ministry of EducationChongqing400030China
- Institute of Engineering ThermophysicsSchool of Energy and Power EngineeringChongqing UniversityChongqing400030China
| | - Dingding Ye
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Chongqing University)Ministry of EducationChongqing400030China
- Institute of Engineering ThermophysicsSchool of Energy and Power EngineeringChongqing UniversityChongqing400030China
| | - Yang Yang
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Chongqing University)Ministry of EducationChongqing400030China
- Institute of Engineering ThermophysicsSchool of Energy and Power EngineeringChongqing UniversityChongqing400030China
| | - Wei Li
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Chongqing University)Ministry of EducationChongqing400030China
- Institute of Engineering ThermophysicsSchool of Energy and Power EngineeringChongqing UniversityChongqing400030China
| | - Dongliang Li
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Chongqing University)Ministry of EducationChongqing400030China
- Institute of Engineering ThermophysicsSchool of Energy and Power EngineeringChongqing UniversityChongqing400030China
| | - Haonan Li
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Chongqing University)Ministry of EducationChongqing400030China
- Institute of Engineering ThermophysicsSchool of Energy and Power EngineeringChongqing UniversityChongqing400030China
| | - Qiang Liao
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Chongqing University)Ministry of EducationChongqing400030China
- Institute of Engineering ThermophysicsSchool of Energy and Power EngineeringChongqing UniversityChongqing400030China
| |
Collapse
|
20
|
Brito J, Asawa K, Marin A, Andrianov AK, Choi CH, Sukhishvili SA. Hierarchically Structured, All-Aqueous-Coated Hydrophobic Surfaces with pH-Selective Droplet Transfer Capability. ACS APPLIED MATERIALS & INTERFACES 2022; 14:26225-26237. [PMID: 35611942 DOI: 10.1021/acsami.2c04499] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Often inspired by nature, techniques for precise droplet manipulation have found applications in microfluidics, microreactors, and water harvesting. However, a widely applicable strategy for surface modification combining simultaneous hydrophobicity and pH-sensitivity has not yet been achieved by employing environmentally friendly assembly conditions. The introduction of pH-responsive groups to an otherwise fluorinated polyphosphazene (PPZ) unlocks pH-selective droplet capture and transfer. Here, an all-aqueous layer-by-layer (LbL) deposition of polyelectrolytes is used to create unique hydrophobic coatings, endowing surfaces with the ability to sense environmental pH. The high hydrophobicity of these coatings (ultimately reaching a contact angle >120° on flat surfaces) is enabled by the formation of hydrophobic nanoscale domains and controllable by the degree of fluorination of PPZs, polyamine-binding partners, deposition pH, and coating thickness. Inspired by the hierarchical structure of rose petals, these versatile coatings reach a contact angle >150° when deposited on structured surfaces while introducing a tunable adhesivity that enables precise droplet manipulation. The films exhibited a strongly pronounced parahydrophobic rose petal behavior characterized through the contact angle hysteresis. Depositing as few as five bilayers (∼25 nm) on microstructured rather than smooth substrates resulted in superhydrophobicity with water contact angles >150° and the attenuation of the contact angle hysteresis, enabling highly controlled transfer of aqueous droplets. The pH-selective droplet transfer was achieved between surfaces with either the same microstructure and LbL film building blocks, which were assembled at different pH, or between surfaces with different microstructures coated with identical films. The demonstrated capability of these hydrophobic LbL films to endow surfaces with controlled hydrophobicity through adsorption from aqueous solutions and control the adhesion and transfer of water droplets between surfaces can be used in droplet-based microfluidics applications and water collection/harvesting.
Collapse
Affiliation(s)
- Jordan Brito
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Kaustubh Asawa
- Department of Mechanical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Alexander Marin
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland 20850, United States
| | - Alexander K Andrianov
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland 20850, United States
| | - Chang-Hwan Choi
- Department of Mechanical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Svetlana A Sukhishvili
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| |
Collapse
|
21
|
Yang C, Zeng Q, Huang J, Guo Z. Droplet manipulation on superhydrophobic surfaces based on external stimulation: A review. Adv Colloid Interface Sci 2022; 306:102724. [DOI: 10.1016/j.cis.2022.102724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/14/2022] [Accepted: 06/22/2022] [Indexed: 11/01/2022]
|
22
|
Chu D, Li W, Liang Z, Qu S, Yao P. Reversible Control between Sliding and Pinning on Femtosecond Laser-Treated Nickel Foam Slippery Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:2076-2083. [PMID: 35113574 DOI: 10.1021/acs.langmuir.1c03125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Bioinspired slippery surfaces with excellent abilities, such as antifouling, anticorrosion, and drag reduction, have gained increasing attention due to their multifunction in chemistry, biology, and medicine. However, the present thermally responsive methods used for in situ paraffin-infused slippery surfaces (PISS) are usually based on a surface heat source or certain specific photothermal materials, which seriously hinders their practical applications. Herein, we present a kind of in situ PISS processed by femtosecond laser on nickel (Ni) foam with reversible droplet behavior between sliding and pinning controlled by a point heat source. By alternately loading and unloading the point heat source, switchable wettability for liquid droplets can be achieved. The reaction time of this smart surface to the temperature change is 4.47 ± 1.14 s. The relationship between droplet volumes and inclined angles on four different surfaces is quantitatively investigated. Furthermore, the as-prepared PISS display an impressive self-healing ability. In addition, by flexibly changing the action path of the point heat source, the droplet can realize the movement of different curves. This functional surface and in situ control method will be a promising candidate for manipulating droplet directional sliding behavior and smart temperature-responsive surfaces.
Collapse
Affiliation(s)
- Dongkai Chu
- Center for Advanced Jet Engineering Technologies (CaJET), School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061, PR China
- State Key Laboratory of High Performance and Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, PR China
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, Shandong University, Jinan, Shandong 250061, PR China
| | - Weizhen Li
- Center for Advanced Jet Engineering Technologies (CaJET), School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061, PR China
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, Shandong University, Jinan, Shandong 250061, PR China
| | - Zihang Liang
- Center for Advanced Jet Engineering Technologies (CaJET), School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061, PR China
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, Shandong University, Jinan, Shandong 250061, PR China
| | - Shuoshuo Qu
- Center for Advanced Jet Engineering Technologies (CaJET), School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061, PR China
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, Shandong University, Jinan, Shandong 250061, PR China
| | - Peng Yao
- Center for Advanced Jet Engineering Technologies (CaJET), School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061, PR China
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, Shandong University, Jinan, Shandong 250061, PR China
| |
Collapse
|
23
|
Sun Z, Cao Z, Li Y, Zhang Q, Zhang X, Qian J, Jiang L, Tian D. Switchable smart porous surface for controllable liquid transportation. MATERIALS HORIZONS 2022; 9:780-790. [PMID: 34901984 DOI: 10.1039/d1mh01820e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Controllable liquid transportation through a smart porous membrane is realized by manipulating the surface wetting properties and external stimuli, and has been intensively studied. However, the liquid transportation, e.g., permeation and moving process, at the interface is generally uninterrupted, i.e., the opening and closing of the interface is irreversible. Herein, we present a new strategy to achieve magnetic adaptive switchable surfaces, i.e., liquid-infused micro-nanostructured porous composite film surfaces, for controllable liquid transportation, via modulation of the magnetic field. The liquid transportation process can be interrupted and restarted on the porous composite film because its pore structure can be quickly closed and opened owing to the adaptive morphological transformation of the magnetic liquid with a varying magnetic field. That is, the liquid permeation process occurs due to the open pore structure of the composite film when the external magnetic field is added, while the permeation process can be interrupted owing to the self-repairing closure of the pore when the magnetic field is removed, and the moving process can be achieved. Thus a magnetic field induced switchable porous composite film can serve as a valve to control liquid permeation based transportation, which opens new avenues for artificial liquid gating devices for flow, smart separation, and droplet microfluidics.
Collapse
Affiliation(s)
- Zhenning Sun
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing 100191, P. R. China.
| | - Zhengyu Cao
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing 100191, P. R. China.
| | - Yan Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, 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, Beijing Advanced Innovation Center for Biomedical Engineering, 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
| | - Jiangang Qian
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing 100191, P. R. China.
| | - Lei Jiang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing 100191, P. R. China.
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100191, P. R. China
| | - Dongliang Tian
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing 100191, P. R. China.
| |
Collapse
|
24
|
Liu H, Zhang L, Huang J, Mao J, Chen Z, Mao Q, Ge M, Lai Y. Smart surfaces with reversibly switchable wettability: Concepts, synthesis and applications. Adv Colloid Interface Sci 2022; 300:102584. [PMID: 34973464 DOI: 10.1016/j.cis.2021.102584] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/30/2021] [Accepted: 12/15/2021] [Indexed: 11/16/2022]
Abstract
As a growing hot research topic, manufacturing smart switchable surfaces has attracted much attention in the past a few years. The state-of-the-art study on reversibly switchable wettability of smart surfaces has been presented in this systematic review. External stimuli are brought about to render the alteration in chemical conformation and surface morphology to drive the wettability switch. Here, starting from the fundamental theories related to the surfaces wetting principles, highlights on different triggers for switchable wettability, such as pH, light, ions, temperature, electric field, gas, mechanical force, and multi-stimuli are discussed. Different applications that have various wettability requirement are targeted, including oil-water separation, droplets manipulation, patterning, liquid transport, and so on. This review aims to provide a deep insight into responsive interfacial science and offer guidance for smart surface engineering. It ends with a summary of current challenges, future opportunities, and potential solutions on smart switch of wettability on superwetting surfaces.
Collapse
Affiliation(s)
- Hui Liu
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, School of Textile & Clothing, Nantong University, Nantong 226019, PR China; National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, Taian 271000, PR China
| | - Li Zhang
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, School of Textile & Clothing, Nantong University, Nantong 226019, PR China; National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, Taian 271000, PR China
| | - Jianying Huang
- National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), College of Chemical Engineering, Fuzhou 350116, PR China
| | - Jiajun Mao
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, PR China
| | - Zhong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore, Singapore
| | - Qinghui Mao
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, School of Textile & Clothing, Nantong University, Nantong 226019, PR China; National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, Taian 271000, PR China.
| | - Mingzheng Ge
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, School of Textile & Clothing, Nantong University, Nantong 226019, PR China; National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, Taian 271000, PR China.
| | - Yuekun Lai
- National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), College of Chemical Engineering, Fuzhou 350116, PR China.
| |
Collapse
|
25
|
Sun L, Guo J, Chen H, Zhang D, Shang L, Zhang B, Zhao Y. Tailoring Materials with Specific Wettability in Biomedical Engineering. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2100126. [PMID: 34369090 PMCID: PMC8498887 DOI: 10.1002/advs.202100126] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 06/22/2021] [Indexed: 05/02/2023]
Abstract
As a fundamental feature of solid surfaces, wettability is playing an increasingly important role in our daily life. Benefitting from the inspiration of biological paradigms and the development in manufacturing technology, numerous wettability materials with elaborately designed surface topology and chemical compositions have been fabricated. Based on these advances, wettability materials have found broad technological implications in various fields ranging from academy, industry, agriculture to biomedical engineering. Among them, the practical applications of wettability materials in biomedical-related fields are receiving remarkable researches during the past decades because of the increasing attention to healthcare. In this review, the research progress of materials with specific wettability is discussed. After briefly introducing the underlying mechanisms, the fabrication strategies of artificial materials with specific wettability are described. The emphasis is put on the application progress of wettability biomaterials in biomedical engineering. The prospects for the future trend of wettability materials are also presented.
Collapse
Affiliation(s)
- Lingyu Sun
- Institute of Translational MedicineDepartment of RadiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210002China
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China
| | - Jiahui Guo
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China
| | - Hanxu Chen
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China
| | - Dagan Zhang
- Institute of Translational MedicineDepartment of RadiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210002China
| | - Luoran Shang
- Zhongshan‐Xuhui Hospitalthe Shanghai Key Laboratory of Medical EpigeneticsInstitutes of Biomedical SciencesFudan UniversityShanghai200032China
| | - Bing Zhang
- Institute of Translational MedicineDepartment of RadiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210002China
| | - Yuanjin Zhao
- Institute of Translational MedicineDepartment of RadiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210002China
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China
| |
Collapse
|
26
|
He Y, Wang L, Yang K, Wang X, Rong W, Sun L. Cooperative Self-Assembled Magnetic Micropaddles at Liquid Surfaces. ACS APPLIED MATERIALS & INTERFACES 2021; 13:46180-46191. [PMID: 34520667 DOI: 10.1021/acsami.1c13551] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Cooperative controls of magnetic microswimmers are desired for complex micromanipulation and microassembly tasks. Self-assembled magnetic micropaddles as microswimmers that can locomote freely and cooperate at liquid surfaces are proposed inspired by the paddling motion. The micropaddles are self-assembled with metallic disks under a rotating magnetic field, and they are endowed with controlled propulsion in the precessing field. The micropaddles can locomote freely with a maximum speed of approximately 3.3 mm/s and manipulate objects at the liquid surface. It is found that the micropaddles reverse moving directions at high frequencies and that those with different lengths can locomote in opposite directions under the same precessing magnetic field. Based on the distinctive motion properties, not only could several micropaddles combine into the longer ones but a single micropaddle could also be disassembled into two cooperative partners. Assemblies of different parts based on their cooperation are realized in this study, which is challenging for other types of magnetic microswimmers. Micropaddles with adjustable length, flexible locomotion, and cooperative capability present a promising avenue for various micromanipulation applications.
Collapse
Affiliation(s)
- Yuanzhe He
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China
| | - Lefeng Wang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China
| | - Kai Yang
- Microsystem and Terahertz Research Center, China Academy of Engineering Physics, Chengdu 610200, China
| | - Xi Wang
- Microsystem and Terahertz Research Center, China Academy of Engineering Physics, Chengdu 610200, China
| | - Weibin Rong
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China
| | - Lining Sun
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China
| |
Collapse
|
27
|
Liang X, Li D, Li S, Xu C, Guo Z. Artificial Leaf for Switchable Droplet Manipulation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:5745-5752. [PMID: 33929871 DOI: 10.1021/acs.langmuir.1c00799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Droplet manipulation plays an important role in scientific research, daily life, and practical production such as biological and chemical analysis. Inspired by the structure and function of three typical leaf veins, the bionic texture was replicated by the template method, and the artificial leaf was selectively treated by nanoparticles to obtain a quasi-three-dimensional hybrid superhydrophobic-hydrophilic surface. When the droplet touches the surface of the leaf, it will be attracted to the bottom of the main vein from different directions even in horizontal conditions due to the Laplace pressure gradient and energy gradient. The simulation analysis demonstrates that the reason for directional transportation is the energy gradient of the droplets on the different levels of veins, including the thin veins, lateral veins, and main vein. Meanwhile, the experimental result of water collection also showed an outstanding directional transportation effect and excellent water collection efficiency. In addition, when the sample is tilted upside down, the droplet will flow back to the main vein along the lateral vein and then flow down the main vein, showing a good droplet pumping effect. Therefore, the directional and polydirectional transportation of droplets on the same sample is successfully realized, and the conversion between executing single and multiple tasks simultaneously can be realized only by upright and inverted samples. This work provided a new strategy for directional and polydirectional water manipulation, water collection, directional drainage, and microfluidic devices.
Collapse
Affiliation(s)
- Xiaojing Liang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Deke Li
- School of Materials Engineering, Lanzhou Institute of Technology, Lanzhou 730050, People's Republic of China
| | - ShanPeng Li
- College of Engineering, Lishui University, Lishui 323000, People's Republic of China
| | - Chenggong Xu
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Zhiguang Guo
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People's Republic of China
| |
Collapse
|
28
|
Li H, Zhu L, Zhu X, Chao M, Xue J, Sun D, Xia F, Xue Q. Dual-functional membrane decorated with flower-like metal-organic frameworks for highly efficient removal of insoluble emulsified oils and soluble dyes. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124444. [PMID: 33168320 DOI: 10.1016/j.jhazmat.2020.124444] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/16/2020] [Accepted: 10/29/2020] [Indexed: 06/11/2023]
Abstract
High-performance membranes for simultaneously removing insoluble emulsified oils and soluble organic dyes are in urgently demand for industrial wastewater treatment, but are strictly limited by the single-function and serious fouling problem. Herein, a dual-functional membrane with excellent antifouling ability for efficiently dye/oil/water emulsion separation has been fabricated by growing flower-like metal-organic frameworks (MIL-53-OH) on polyacrylonitrile/polyethyleneimine membrane for the first time. The synergistic effect of the hierarchical flower-like structure and superhydrophilic compositions with high hydration ability endows the obtained membrane with a stable and ultra-strong oil-repelling hydration layer, thus imparting the membrane formidable oil resistance and exceptional oil/water emulsion separation performance (permeate flux>4000 L m-2 h-1). What's more, the superhydrophilic compositions render the membrane an excellent dye remove capacity by electrostatic forces and hydrogen bonding. The membrane rejections for dyes and emulsified oils are above 99%, and the dyes and oils on the used membrane can be easily washed away with methanol and water, respectively, confirming that the membrane has desirable recyclability. Besides, the membrane possesses excellent mechanical performance and outstanding acid and alkali resistance, indicating that the membrane is a promising candidate for removing insoluble emulsified oils and soluble dyes.
Collapse
Affiliation(s)
- Hui Li
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, PR China
| | - Lei Zhu
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, PR China.
| | - Xu Zhu
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, PR China
| | - Ma Chao
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, PR China
| | - Jinwei Xue
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, PR China
| | - Daofeng Sun
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, PR China
| | - Fujun Xia
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, PR China
| | - Qingzhong Xue
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, PR China.
| |
Collapse
|
29
|
Fang J, Zhang Y, Xiao L, Jiao Y, Tang X, Cheng H, Cui Z, Li X, Li G, Cao M, Zhong L. Self-Propelled and Electrobraking Synergetic Liquid Manipulator toward Microsampling and Bioanalysis. ACS APPLIED MATERIALS & INTERFACES 2021; 13:14741-14751. [PMID: 33723993 DOI: 10.1021/acsami.1c01494] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Droplet manipulation is of paramount significance for microfluidics-based biochips, especially for bioanalytical chips. Despite great progresses made on droplet manipulation, the existing bioanalytical methods face challenges in terms of capturing minute doses toward hard-to-obtain samples and analyzing biological samples at low temperatures immediately. To circumvent these limitations, a self-propelled and electric stimuli synergetic droplet manipulator (SES-SDM) was developed by a femtosecond laser microfabrication strategy followed by post-treatment. Combining the inspiration from cactus and Nepenthes pitcher plants, the wedge structure with the microbowl array and silicone oil infusion was endowed cooperatively with the SES-SDM. With the synergy of the ultralow voltage (4.0 V) stimuli, these bioinspired features enable the SES-SDM to transport the droplet spontaneously and controllably, showing the maximum fast motion (15.7 mm/s) and long distance (96.2 mm). Remarkably, the SES-SDM can function at -5 °C without the freezing of the droplets, where the self-propelled motion and electric-responsive pinning can realize the accurate capture and real-time analysis of the microdroplets of the tested samples. More importantly, the SES-SDM can realize real-time diagnosis of excessive heavy metal in water by the cooperation of self-propulsion and electro-brake. This work opens an avenue to design a microsampling (5-20 μL) manipulator toward producing the minute samples for efficient bioanalysis and offers a strategy for microanalysis using the synergistic droplet manipulation.
Collapse
Affiliation(s)
- Jiahao Fang
- Key Laboratory of Testing Technology for Manufacturing Process, Ministry of Education, School of Manufacture Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Yabin Zhang
- Key Laboratory of Testing Technology for Manufacturing Process, Ministry of Education, School of Manufacture Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Lin Xiao
- Key Laboratory of Testing Technology for Manufacturing Process, Ministry of Education, School of Manufacture Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Yan Jiao
- Key Laboratory of Testing Technology for Manufacturing Process, Ministry of Education, School of Manufacture Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Xiaoxuan Tang
- Key Laboratory of Testing Technology for Manufacturing Process, Ministry of Education, School of Manufacture Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Hui Cheng
- Key Laboratory of Testing Technology for Manufacturing Process, Ministry of Education, School of Manufacture Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Zehang Cui
- Key Laboratory of Testing Technology for Manufacturing Process, Ministry of Education, School of Manufacture Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Xiaohong Li
- Joint Laboratory for Extreme Conditions Matter Properties, School of Science, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Guoqiang Li
- Key Laboratory of Testing Technology for Manufacturing Process, Ministry of Education, School of Manufacture Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Moyuan Cao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Liang Zhong
- Key Laboratory of Testing Technology for Manufacturing Process, Ministry of Education, School of Manufacture Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| |
Collapse
|
30
|
Abstract
Titanium dioxide (TiO2) is widely used in various fields both in daily life and industry owing to its excellent photoelectric properties and its induced superwettability. Over the past several decades, various methods have been reported to improve the wettability of TiO2 and plenty of practical applications have been developed. The TiO2-derived materials with different morphologies display a variety of functions including photocatalysis, self-cleaning, oil-water separation, etc. Herein, various functions and applications of TiO2 with superwettability are summarized and described in different sections. First, a brief introduction about the discovery of photoelectrodes made of TiO2 is revealed. The ultra-fast spreading behaviors on TiO2 are shown in the part of ultra-fast spreading with superwettability. The part of controllable wettability introduces the controllable wettability of TiO2-derived materials and their related applications. Recent developments of interfacial photocatalysis and photoelectrochemical reactions with TiO2 are presented in the part of interfacial photocatalysis and photoelectrochemical reactions. The part of nanochannels for ion rectification describes ion transportation in nanochannels based on TiO2-derived materials. In the final section, a brief conclusion and a future outlook based on the superwettability of TiO2 are shown.
Collapse
|
31
|
Yang X, Zhuang K, Lu Y, Wang X. Creation of Topological Ultraslippery Surfaces for Droplet Motion Control. ACS NANO 2021; 15:2589-2599. [PMID: 33253526 DOI: 10.1021/acsnano.0c07417] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Droplet motion control on slippery liquid-infused porous surfaces (SLIPS) that mimics the peristome surface of Nepenthes alata has promising applications in the fields of energy, lab-on-a-chip device, etc., yet is limited due to the difficulty in regulating its wettability. In this work, topologies with specific functions from natural creatures, for example, grooved structures of rice leaf and wedge-shaped structures of shore bird beak with droplet transporting capability were integrated with the SLIPS. Three-dimensional topological SLIPS was fabricated on metal substrates using laser milling followed by alkaline oxidation. Fabricated rice leaflike grooved nanotextured SLIPS can properly shape the droplet footprint to achieve a sliding resistance anisotropy of 109.8 μN, which is 27 times larger than that of a natural rice leaf and can therefore be used to efficiently and precisely transport droplets; wedge-shaped nanotextured SLIPS can confine the droplet footprint and squeeze droplet to produce a Laplace pressure gradient for continuous self-driven droplet transport. The created surfaces can manipulate droplets of acid, alkali, and salt solutions. The proposed concept is believed to have potential applications for condensing heat transfer and droplet-based lab-on-a-chip devices.
Collapse
Affiliation(s)
- Xiaolong Yang
- National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Kai Zhuang
- National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Yao Lu
- Department of Chemistry, School of Biological and Chemical Sciences, Queen Mary University of London, London E1 4NS, U.K
| | - Xiaolei Wang
- National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| |
Collapse
|
32
|
Dong X, Zhao H, Li J, Tian Y, Zeng H, Ramos MA, Hu TS, Xu Q. Progress in Bioinspired Dry and Wet Gradient Materials from Design Principles to Engineering Applications. iScience 2020; 23:101749. [PMID: 33241197 PMCID: PMC7672307 DOI: 10.1016/j.isci.2020.101749] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Nature does nothing in vain. Through millions of years of revolution, living organisms have evolved hierarchical and anisotropic structures to maximize their survival in complex and dynamic environments. Many of these structures are intrinsically heterogeneous and often with functional gradient distributions. Understanding the convergent and divergent gradient designs in the natural material systems may lead to a new paradigm shift in the development of next-generation high-performance bio-/nano-materials and devices that are critically needed in energy, environmental remediation, and biomedical fields. Herein, we review the basic design principles and highlight some of the prominent examples of gradient biological materials/structures discovered over the past few decades. Interestingly, despite the anisotropic features in one direction (i.e., in terms of gradient compositions and properties), these natural structures retain certain levels of symmetry, including point symmetry, axial symmetry, mirror symmetry, and 3D symmetry. We further demonstrate the state-of-the-art fabrication techniques and procedures in making the biomimetic counterparts. Some prototypes showcase optimized properties surpassing those seen in the biological model systems. Finally, we summarize the latest applications of these synthetic functional gradient materials and structures in robotics, biomedical, energy, and environmental fields, along with their future perspectives. This review may stimulate scientists, engineers, and inventors to explore this emerging and disruptive research methodology and endeavors.
Collapse
Affiliation(s)
- Xiaoxiao Dong
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing 102249, China
| | - Hong Zhao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing 102249, China
| | - Jiapeng Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing 102249, China
| | - Yu Tian
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Melvin A Ramos
- Department of Mechanical Engineering, California State University, Los Angeles, CA 90032, USA
| | - Travis Shihao Hu
- Department of Mechanical Engineering, California State University, Los Angeles, CA 90032, USA
| | - Quan Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing 102249, China
| |
Collapse
|
33
|
Liu P, Lai H, Luo X, Xia Q, Zhang D, Cheng Z, Liu Y, Jiang L. Superlyophilic Shape Memory Porous Sponge for Smart Liquid Permeation. ACS NANO 2020; 14:14047-14056. [PMID: 32970408 DOI: 10.1021/acsnano.0c06673] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Recently, smart liquid permeation has aroused much attention. However, existing strategies to achieve such a goal are often based on reversibly controlling hydrophobicity/hydrophilicity on static porous structures, which are unsuitable for oils with low surface tension, and meanwhile they cannot realize tunable permeation flux since the pore sizes are constant. Herein, we report a superlyophilic shape memory porous sponge (SSMS) that can demonstrate tunable pore size from about 28 nm to 900 μm as the material's shape is changed. Based on the controllability in pore size, not only ON/OFF penetration but also precisely tunable permeation flux can be obtained for both water and oil. Furthermore, by using the SSMS, an application in accurate release of small-molecule rhodamine B was also demonstrated. This work reports a material with tunable pore size for controllable liquid permeation, which provides some ideas for designing smart superwetting permeation materials.
Collapse
Affiliation(s)
- Pengchang Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Hua Lai
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Xin Luo
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Qixing Xia
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Dongjie Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Zhongjun Cheng
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Yuyan Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Lei Jiang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| |
Collapse
|
34
|
Li H, Shen R, Dong C, Chen T, Jia Y, Mak PI, Martins RP. Turning on/off satellite droplet ejection for flexible sample delivery on digital microfluidics. LAB ON A CHIP 2020; 20:3709-3719. [PMID: 32974634 DOI: 10.1039/d0lc00701c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Digital microfluidics has the potential to minimize and automate reactions in biochemical labs. However, the complexity of drop manipulation and sample preparation on-chip has limited its incorporation into daily workflow. In this paper, we report a novel method for flexible sample delivery on digital microfluidics in a wide volume range spanning four orders of magnitude from picoliters to nanoliters. The method is based on the phenomenon of satellite droplet ejection, triggered by a sudden change in the strength of the electric field across a drop on a hydrophobic dielectric surface. By precisely modulating the actuation signal with convenient external electric controls, satellite droplet ejection can be turned on to dispense samples or turned off to transport picking-up drops. A pico-dosing design is presented and validated in this work to demonstrate the direct and flexible on-chip sample delivery. This approach could pave the way for the acceptance of microfluidics as a common platform for daily reactions to realize lab-on-a-chip.
Collapse
Affiliation(s)
- Haoran Li
- The State Key Laboratory of Analog and Mixed-Signal VLSI, Institute of Microelectronics, University of Macau, Macau SAR, China.
| | | | | | | | | | | | | |
Collapse
|
35
|
Li N, Yu C, Dong Z, Jiang L. Finger directed surface charges for local droplet motion. SOFT MATTER 2020; 16:9176-9182. [PMID: 33084723 DOI: 10.1039/d0sm01073a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Water droplets are expected to be employed as animated soft matter to mimic the behaviours of both nonliving objects and small living organisms. Local water droplet motion has attracted considerable interest and has expanded into various application areas because of its close relationship with processes associated with life. However, few approaches have been capable of independently manipulating local droplet motion without loss on a substrate due to the difficulty in shaping and focusing the motion route. Here, we demonstrate a non-contact electrostatic-powered local water motion strategy. The gradient of electrostatic charges in space guides the local drop motion without liquid loss in a controlled motion path. The local droplet motion on surfaces with varied wettabilities is discussed and compared. A unipolar electrostatic field is theoretically simulated. This work can introduce a finger-directed surface charge pattern and local droplet motion as a new variable in many droplet robot schemes and inspire next-generation liquid devices.
Collapse
Affiliation(s)
- Ning Li
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. and School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Cunlong Yu
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Zhichao Dong
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. and School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Lei Jiang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. and Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| |
Collapse
|
36
|
Nagar A, Pradeep T. Clean Water through Nanotechnology: Needs, Gaps, and Fulfillment. ACS NANO 2020; 14:6420-6435. [PMID: 32433866 DOI: 10.1021/acsnano.9b01730] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Sustainable nanotechnology has made substantial contributions in providing contaminant-free water to humanity. In this Review, we present the compelling need for providing access to clean water through nanotechnology-enabled solutions and the large disparities in ensuring their implementation. We also discuss the current nanotechnology frontiers in diverse areas of the clean water space with an emphasis on applications in the field and provide suggestions for future research. Extending the vision of sustainable and affordable clean water to environment in general, we note that cities can live and breathe well by adopting such technologies. By understanding the global environmental challenges and exploring remedies from emerging nanotechnologies, sustainability in clean water can be realized. We suggest specific pointers and quantify the impact of such technologies.
Collapse
Affiliation(s)
- Ankit Nagar
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600036, India
| | - Thalappil Pradeep
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600036, India
| |
Collapse
|
37
|
Yu J, Lao J, Chu D, Wang D, Tang D, Li D, Zhu G, Dong A, Shu D, Peng Y, Luo J, Sun B. Reversible Photodriven Droplet Motion on Ti 3C 2 MXene Film for Diverse Liquids. ACS APPLIED MATERIALS & INTERFACES 2020; 12:19194-19200. [PMID: 32223253 DOI: 10.1021/acsami.0c01632] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The manipulation of liquid droplets on a specific surface with reversible wettability is of great importance for various applications from science to industry. Herein, the concept of a smart, flexible photodriven droplet motion (PDM) device with programmable wettability is designed using the 2D material of MXene film. Because of the MXene photothermal property, the Vaseline layer in the device is in transition between solid and liquid states under the heat transformation due to light illumination, thus attractively producing a reversible wettability for liquid motion with respect to sliding and pinning. Multifarious pathways for liquid motion could be designed through the flexibility of light illumination, which is a revolutionary enhancement in diverse liquid motion to form the desired pathways. In addition, we demonstrated liquid motion under illumination of the back face, which has a profound influence on applications, such as microfluidic systems, microengines, and liquid manipulation.
Collapse
Affiliation(s)
- Jiangping Yu
- Shanghai Key Laboratory of Advanced High Temperature Materials and Precision Forming, State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Junchao Lao
- Key Laboratory for Green Chemical Technology of Ministry of Education, State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Dandan Chu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Donghong Wang
- Shanghai Key Laboratory of Advanced High Temperature Materials and Precision Forming, State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ding Tang
- State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Dayong Li
- State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Guoliang Zhu
- Shanghai Key Laboratory of Advanced High Temperature Materials and Precision Forming, State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Anping Dong
- Shanghai Key Laboratory of Advanced High Temperature Materials and Precision Forming, State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Da Shu
- Shanghai Key Laboratory of Advanced High Temperature Materials and Precision Forming, State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yinghong Peng
- State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jiayan Luo
- Key Laboratory for Green Chemical Technology of Ministry of Education, State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Baode Sun
- Shanghai Key Laboratory of Advanced High Temperature Materials and Precision Forming, State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| |
Collapse
|
38
|
Lian Z, Xu J, Yu Z, Yu P, Ren W, Wang Z, Yu H. Bioinspired Reversible Switch between Underwater Superoleophobicity/Superaerophobicity and Oleophilicity/Aerophilicity and Improved Antireflective Property on the Nanosecond Laser-Ablated Superhydrophobic Titanium Surfaces. ACS APPLIED MATERIALS & INTERFACES 2020; 12:6573-6580. [PMID: 31742380 DOI: 10.1021/acsami.9b17639] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In this work, the bioinspired reversible switch between underwater superoleophobicity/superaerophobicity and oleophilicity/aerophilicity and improved antireflective property were successfully demonstrated on the nanosecond laser-structured titanium surfaces. Titanium materials were first transformed to be superhydrophobic after nanosecond laser ablation and low-temperature annealing treatments, showing oleophilicity/aerophilicity in water. If the surfaces were prewetted with absolute ethanol and then immersed into water, the surfaces showed superoleophobicity/superaerophobicity. More importantly, the underwater oleophilicity/aerophilicity of the surfaces could be easily recovered by natural drying, and the switch between the underwater superoleophobicity/superaerophobicity and oleophilicity/aerophilicity could be repeated many cycles. Moreover, based on the original antireflective performance of the surface of the laser-ablated micro/nanoscale structures, we demonstrated that the inspired improved antireflective property could be skillfully realized by the prewetting treatment. The developed bioinspired multifunctional materials provide a versatile platform for the potential applications, such as controlling oil droplets, bubbles, and optical behavior.
Collapse
|
39
|
Wang DC, Yang X, Yu HY, Gu J, Qi D, Yao J, Ni Q. Smart nonwoven fabric with reversibly dual-stimuli responsive wettability for intelligent oil-water separation and pollutants removal. JOURNAL OF HAZARDOUS MATERIALS 2020; 383:121123. [PMID: 31520937 DOI: 10.1016/j.jhazmat.2019.121123] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/15/2019] [Accepted: 08/28/2019] [Indexed: 06/10/2023]
Abstract
This work presents the first fabrication of smart nonwoven fabric (DSR-CZPP) with extraordinary reversible double-stimulus responsive wettability, where carboxyl groups of cellulose nanocrystals/zinc oxide (CNC/ZnO) nanohybrids deposited on fabric surface can bond with hydroxyl group of the PDMAEMA-b-PHEMA-b-PMAAAB triblock polymer brushes that was prepared by using methyl methacrylate (HEMA), dimethylaminoethyl methacrylate (DMAEMA) and methacrylamide-azobenzene monomer (MAAAB) via reversible addition-fragmentation chain transfer (RAFT). The peculiar reversible double-stimulus responsive wettability of the DSR-CZPP can be modulated by triggering hydrophilic/hydrophobic transitions and lipophilic/oleophobic transitions under dual-stimulations of pH and UV light irradiation. The special molecular structure of the triblock polymer brushes enabled DSR-CZPP to intelligent modulation of oil-water separation under the control of "UV & pH double switch", meanwhile CNC/ZnO simultaneously can induce the photocatalytic degradation of organic dyes. Moreover, DSR-CZPP can have high removal ratios of various pollutants, such as metal ion (Cu2+) and toxic organic solvent (silicone oil, acetone and chloroform). This smart and multifunctional fabric shows great potentials for treating complicated polluted water from most industrial fields.
Collapse
Affiliation(s)
- Duan-Chao Wang
- College of Materials and Textile, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China
| | - Xiaogang Yang
- College of Materials and Textile, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China
| | - Hou-Yong Yu
- College of Materials and Textile, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China; Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada.
| | - Jiping Gu
- College of Materials and Textile, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China
| | - Dongming Qi
- College of Materials and Textile, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China.
| | - Juming Yao
- College of Materials and Textile, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China
| | - Qingqing Ni
- College of Materials and Textile, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China; Department of Mechanical Engineering & Robotics, Shinshu University, Tokida, Ueda, 386-8576, Japan
| |
Collapse
|
40
|
Si Y, Dong Z. Bioinspired Smart Liquid Directional Transport Control. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:667-681. [PMID: 31940205 DOI: 10.1021/acs.langmuir.9b03385] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Developments in bioinspired superwetting materials have triggered technological revolutions in many disciplines. One representative area is liquid directional transport dominated by interface properties, which has experienced rapid progress recently. To improve the controllability, scientists try to use the external field, such as light, electricity, thermal, and so on, to assist or achieve controllable smart, responsive liquid directional transport. However, there are still some intractable problems and challenges behind prosperity. Here, we summarize the relevant basic theory of surface wettability and the processes of the development of bioinspired superwetting materials. We discuss the different essential mechanisms of liquid directional transport. Furthermore, smart external field-controlled fluid directional transport is the primary focus of this feature article. We briefly put forward our views on some outstanding problems, existing challenges, and trends in this field.
Collapse
Affiliation(s)
- Yifan Si
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry , Beihang University , Beijing 100191 , China
| | - Zhichao Dong
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100190 , China
| |
Collapse
|
41
|
Ultraviolet-driven switchable superliquiphobic/superliquiphilic coating for separation of oil-water mixtures and emulsions and water purification. J Colloid Interface Sci 2019; 557:395-407. [DOI: 10.1016/j.jcis.2019.09.042] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 09/09/2019] [Accepted: 09/12/2019] [Indexed: 12/20/2022]
|
42
|
Wang W, Guo T, Sun K, Jin Y, Gu F, Xiao H. Lignin Redistribution for Enhancing Barrier Properties of Cellulose-Based Materials. Polymers (Basel) 2019; 11:E1929. [PMID: 31771105 PMCID: PMC6960624 DOI: 10.3390/polym11121929] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 11/14/2019] [Accepted: 11/20/2019] [Indexed: 01/19/2023] Open
Abstract
Renewable cellulose-based materials have gained increasing interest in food packaging because of its favorable biodegradability and biocompatibility, whereas the barrier properties of hydrophilic and porous fibers are inadequate for most applications. Exploration of lignin redistribution for enhancing barrier properties of paper packaging material was carried out in this work. The redistribution of nanolized alkali lignin on paper surface showed excellent water, grease, and water vapor barrier. It provided persisted water (contact angle decrease rate at 0.05°/s) and grease (stained area undetectable at 72 h) resistance under long-term moisture or oil direct contact conditions, which also inhibited the bacterial growth to certain degree. Tough water vapor transmission rate can be lowered 82% from 528 to 97 g/m2/d by lignin redistribution. The result suggests that alkali lignin, with multiple barrier properties, has great potential in bio-based application considering the biodegradability, biocompatibility, and recyclability.
Collapse
Affiliation(s)
- Wangxia Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224001, China; (W.W.); (K.S.)
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China; (T.G.); (Y.J.)
| | - Tianyu Guo
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China; (T.G.); (Y.J.)
| | - Kaiyong Sun
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224001, China; (W.W.); (K.S.)
- Jiangsu R & D Center of the Ecological Dyes and Chemicals, Yancheng Polytechnic College, Yancheng 224005, China
| | - Yongcan Jin
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China; (T.G.); (Y.J.)
| | - Feng Gu
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224001, China; (W.W.); (K.S.)
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B5A3, Canada
| |
Collapse
|
43
|
Dai H, Gao C, Sun J, Li C, Li N, Wu L, Dong Z, Jiang L. Controllable High-Speed Electrostatic Manipulation of Water Droplets on a Superhydrophobic Surface. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1905449. [PMID: 31517409 DOI: 10.1002/adma.201905449] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Indexed: 06/10/2023]
Abstract
Biological processes and technological applications cannot work without liquid control, where versatile water droplet manipulation is a significant issue. Droplet motion is conventionally manipulated by functionalizing the target surface or by utilizing additives in the droplet, still, with uncontrolled limitation on superhydrophobic surfaces since droplets are either unable to move fast or are difficult to stop while moving. A controllable high-speed "all-in-one" no-loss droplet manipulation, that is, in-plane moving and stopping/pinning in any direction on a superhydrophobic surface, with electrostatic charging is demonstrated. The experimental results reveal that the transport speed can vary from zero to several hundreds of millimeters per second. Controlled dynamic switching between the onset moving state and the offset pinning state of a water droplet can be achieved by out-of-plane electrostatic charging. This work opens the possibility of droplet control techniques in various applications, such as combinatory chemistry, biochemical, and medical detection.
Collapse
Affiliation(s)
- Haoyu Dai
- CAS Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Can Gao
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- CAS Key Laboratory of Bio-Inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Junhan Sun
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Chuxin Li
- CAS Key Laboratory of Bio-Inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Ning Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Lei Wu
- CAS Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhichao Dong
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- CAS Key Laboratory of Bio-Inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Lei Jiang
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- CAS Key Laboratory of Bio-Inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| |
Collapse
|
44
|
Zong C, Hu M, Azhar U, Chen X, Zhang Y, Zhang S, Lu C. Smart Copolymer-Functionalized Flexible Surfaces with Photoswitchable Wettability: From Superhydrophobicity with "Rose Petal" Effect to Superhydrophilicity. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25436-25444. [PMID: 31268647 DOI: 10.1021/acsami.9b07767] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Realizing smart surfaces with switchable wettability inspired by nature continues to be fascinating as well as challenging. Herein, we present a versatile dip-coating approach to fabricate smart polymer-functionalized flexible surfaces with photoswitchable superwettability. Decorated with novel acrylate copolymers bearing a trifluoromethyl side chain and fluorine-containing azobenzene derivative moieties, the modified cotton fabric possesses a rose petal-like superhydrophobicity with contact angles larger than 150° and high water adhesion. This smart surface exhibits rapid phototriggered wettability transformation between superhydrophobicity and superhydrophilicity via alternate irradiation with ultraviolet and visible light, respectively. Meanwhile, the as-prepared flexible smart surfaces have excellent chemical and physical stabilities, which could tolerate harsh environmental conditions and repetitive mechanical deformation (e.g., stretching, curling, folding, and twisting) as well as multiple washing. More importantly, based on the excellent photocontrollability, various erasable and rewritable patterns with distinct wetting properties upon selective photoirradiation can be obtained. This simple strategy and the developed smart surface may find more advanced potential applications in controllable liquid transport, patterning droplet microarrays, and microfluidic devices.
Collapse
Affiliation(s)
- Chuanyong Zong
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P. R. China
| | - Mei Hu
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P. R. China
| | - Umair Azhar
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P. R. China
| | - Xu Chen
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P. R. China
| | - Yabin Zhang
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P. R. China
| | - Shuxiang Zhang
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P. R. China
| | - Conghua Lu
- School of Materials Science and Engineering , Tianjin University , Tianjin 300072 , P. R. China
| |
Collapse
|
45
|
Yan Y, He L, Li Y, Tian D, Zhang X, Liu K, Jiang L. Unidirectional liquid transportation and selective permeation for oil/water separation on a gradient nanowire structured surface. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.04.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
46
|
Li D, Wang Z, Wu D, Han G, Guo Z. A hybrid bioinspired fiber trichome with special wettability for water collection, friction reduction and self-cleaning. NANOSCALE 2019; 11:11774-11781. [PMID: 31184350 DOI: 10.1039/c9nr03882e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Inspired by biological surfaces, we designed a magnetic fiber trichome based on the surface properties of caterpillars and earthworms. The caterpillar-inspired fiber trichome possesses a cooperative superhydrophilic-superhydrophobic-slippery lubricant-infused porous surface with gradient wettability and shows excellent fog harvesting behavior due to the driving force of the gradient wettability fiber similar to caterpillar spines. The earthworm-inspired fiber trichome exhibits excellent friction reduction and antiwear properties under harsh oil-bathed friction conditions, and it moves rapidly in mud under magnetic stimulation because of the self-lubricating transfer film formed between friction contact surfaces. In addition, the earthworm-inspired fiber trichome also has continuous antifouling capacity in mud due to the self-releasing lubricating layer that can be replenished after being consumed under solid friction. Therefore, the caterpillar- and earthworm-inspired fiber trichomes extend the scope of potential applications, such as self-driven water collection, self-floating oil spill cleanup, reducing friction and wear resistance, high-efficiency antifouling, and transport of heavy loads, among others.
Collapse
Affiliation(s)
- Deke Li
- School of Materials Engineering, Lanzhou Institute of Technology, Lanzhou 730050, People's Republic of China.
| | | | | | | | | |
Collapse
|
47
|
Chen C, Huang Z, Jiao Y, Shi LA, Zhang Y, Li J, Li C, Lv X, Wu S, Hu Y, Zhu W, Wu D, Chu J, Jiang L. In Situ Reversible Control between Sliding and Pinning for Diverse Liquids under Ultra-Low Voltage. ACS NANO 2019; 13:5742-5752. [PMID: 31051072 DOI: 10.1021/acsnano.9b01180] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Thermally responsive paraffin-infused slippery surfaces have demonstrated intriguing performance in manipulating the behaviors of versatile droplets. However, present methods have been limited to ex situ rigid heat sources with a high voltage of 220 V or certain specific photothermal materials, which greatly hinders its practical applications. To solve this problem, an intelligent droplet motion control actuator (DMCA) composed of paraffin wax, hydrophobic micropillar-arrayed ZnO film, and a flexible transparent silver nanowire heater (SNWH) is reported in this work. Due to the good portability of DMCA, in situ switchable wettability for several liquid droplets with different surface tensions can be achieved by simply loading and unloading Joule heat at an ultra-low voltage (12 V). The relationship among sliding velocity and droplet volume and inclined angles was quantitatively investigated. By virtue of the flexible and mechanical endurance, this smart DMCA is dramatically functional for droplet motion manipulation ( e.g., reversible control between sliding and pinning) on complex 3D surfaces. Significantly, an impressive self-healing ability within 22 s is also demonstrated through the in situ application of Joule heat on the scratched DMCA, which renders its practical usability in various harsh conditions. This work provides insights for designing intelligent, flexible, and portable actuators dealing with the challenges of smart temperature-responsive surfaces.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Chuanzong Li
- School of Instrument Science and Optoelectronics Engineering , Hefei University of Technology , Hefei 230009 , China
| | - Xiaodong Lv
- School of Instrument Science and Optoelectronics Engineering , Hefei University of Technology , Hefei 230009 , China
| | - Sizhu Wu
- School of Instrument Science and Optoelectronics Engineering , Hefei University of Technology , Hefei 230009 , China
| | | | | | | | | | - Lei Jiang
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100190 , China
| |
Collapse
|
48
|
Wang Y, Lai H, Cheng Z, Zhang H, Zhang E, Lv T, Liu Y, Jiang L. Gecko toe pads inspired in situ switchable superhydrophobic shape memory adhesive film. NANOSCALE 2019; 11:8984-8993. [PMID: 31017157 DOI: 10.1039/c9nr00154a] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Recently, smart adhesive superhydrophobic surfaces have attracted much attention. However, it is still a challenge to obtain a superhydrophobic surface with shape memory adhesive performance. Herein, inspired by the special back-scrolling/unfolding ability of gecko toe pads and corresponding tunable adhesion, we report such a film produced by sticking a layer of superhydrophobic pillar structured polyurethane (s-PU) onto a shape memory polyurethane-cellulose nanofiber (PU-CNF) substrate to mimic the hair-like skin structure and underlying muscle of the gecko toe pads, respectively. Similar to the muscle of the gecko toe pads, the excellent shape memory effect of the PU-CNF substrate can help the obtained film to memorize and repeatedly display different shapes and solid/water contact models. Thus reversible switching between multiple states from the low-adhesive rolling performance to the high-adhesive pinning performance can be realized. Meanwhile, based on its smart wetting performance, not only the traditional in situ capture/release of one microdroplet, but also the step-by-step release of different droplets can be realized on our film. This work reports a new superhydrophobic shape memory adhesive film, which offers a novel strategy for surface adhesion control and meanwhile opens a new road for applications in controlled droplet manipulation.
Collapse
Affiliation(s)
- Yongzhen Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China.
| | | | | | | | | | | | | | | |
Collapse
|
49
|
Wang Y, Lai H, Cheng Z, Zhang H, Liu Y, Jiang L. Smart Superhydrophobic Shape Memory Adhesive Surface toward Selective Capture/Release of Microdroplets. ACS APPLIED MATERIALS & INTERFACES 2019; 11:10988-10997. [PMID: 30835429 DOI: 10.1021/acsami.9b00278] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Controllable manipulation of microdroplets is significant for the microfluidics, biomedical areas, microreactors, and so on; however, until now, reports about no-loss and selective capture/release of different microdroplets are still rare. Herein, we report a new superhydrophobic shape memory adhesive surface that can solve this problem. The surface is prepared by sticking a pillar-structured superhydrophobic polyurethane layer onto a shape memory polyurethane-cellulose nanofiber (PU-CNF) layer. Because of the good shape memory performance of the PU-CNF layer, the obtained surface can memorize and display various microstructure arrangements during the stretching/releasing process. Meanwhile, multiple superhydrophobic adhesive states from low-adhesive rolling performance to high-adhesive pinning performance can be observed on the surface, and all these adhesive states can be reversibly controlled between each other. Based on the smart shape memory ability in surface adhesion, not only traditional in situ capture/release of one microdroplet but also selective capture and release of different microdroplets can be realized. This work reports a new superhydrophobic shape memory adhesive surface; it is envisioned that this smart surface would be a powerful platform for microfluidics systems, complex droplet transportation, biological analysis, and so on.
Collapse
Affiliation(s)
| | | | - Zhongjun Cheng
- CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100190 , China
| | | | | | - Lei Jiang
- CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100190 , China
| |
Collapse
|
50
|
Li JJ, Zhou YN, Luo ZH. Polymeric materials with switchable superwettability for controllable oil/water separation: A comprehensive review. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.06.009] [Citation(s) in RCA: 151] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|