1
|
Wei W, Wang Z, Wang B, He X, Wang Y, Bai Y, Yang Q, Pang W, Duan X. Acoustofluidic manipulation for submicron to nanoparticles. Electrophoresis 2024. [PMID: 38794970 DOI: 10.1002/elps.202400062] [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: 03/29/2024] [Revised: 04/25/2024] [Accepted: 04/29/2024] [Indexed: 05/27/2024]
Abstract
Particles, ranging from submicron to nanometer scale, can be broadly categorized into biological and non-biological types. Submicron-to-nanoscale bioparticles include various bacteria, viruses, liposomes, and exosomes. Non-biological particles cover various inorganic, metallic, and carbon-based particles. The effective manipulation of these submicron to nanoparticles, including their separation, sorting, enrichment, assembly, trapping, and transport, is a fundamental requirement for different applications. Acoustofluidics, owing to their distinct advantages, have emerged as a potent tool for nanoparticle manipulation over the past decade. Although recent literature reviews have encapsulated the evolution of acoustofluidic technology, there is a paucity of reports specifically addressing the acoustical manipulation of submicron to nanoparticles. This article endeavors to provide a comprehensive study of this topic, delving into the principles, apparatus, and merits of acoustofluidic manipulation of submicron to nanoparticles, and discussing the state-of-the-art developments in this technology. The discourse commences with an introduction to the fundamental theory of acoustofluidic control and the forces involved in nanoparticle manipulation. Subsequently, the working mechanism of acoustofluidic manipulation of submicron to nanoparticles is dissected into two parts, dominated by the acoustic wave field and the acoustic streaming field. A critical analysis of the advantages and limitations of different acoustofluidic platforms in nanoparticles control is presented. The article concludes with a summary of the challenges acoustofluidics face in the realm of nanoparticle manipulation and analysis, and a forecast of future development prospects.
Collapse
Affiliation(s)
- Wei Wei
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, P. R. China
| | - Zhaoxun Wang
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, P. R. China
| | - Bingnan Wang
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, P. R. China
| | - Xinyuan He
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, P. R. China
| | - Yaping Wang
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, P. R. China
| | - Yang Bai
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, P. R. China
| | - Qingrui Yang
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, P. R. China
| | - Wei Pang
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, P. R. China
| | - Xuexin Duan
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, P. R. China
| |
Collapse
|
2
|
Wu Z, Cai H, Tian C, Ao Z, Jiang L, Guo F. Exploiting Sound for Emerging Applications of Extracellular Vesicles. NANO RESEARCH 2024; 17:462-475. [PMID: 38712329 PMCID: PMC11073796 DOI: 10.1007/s12274-023-5840-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 05/08/2024]
Abstract
Extracellular vesicles are nano- to microscale, membrane-bound particles released by cells into extracellular space, and act as carriers of biomarkers and therapeutics, holding promising potential in translational medicine. However, the challenges remain in handling and detecting extracellular vesicles for disease diagnosis as well as exploring their therapeutic capability for disease treatment. Here, we review the recent engineering and technology advances by leveraging the power of sound waves to address the challenges in diagnostic and therapeutic applications of extracellular vesicles and biomimetic nanovesicles. We first introduce the fundamental principles of sound waves for understanding different acoustic-assisted extracellular vesicle technologies. We discuss the acoustic-assisted diagnostic methods including the purification, manipulation, biosensing, and bioimaging of extracellular vesicles. Then, we summarize the recent advances in acoustically enhanced therapeutics using extracellular vesicles and biomimetic nanovesicles. Finally, we provide perspectives into current challenges and future clinical applications of the promising extracellular vesicles and biomimetic nanovesicles powered by sound.
Collapse
Affiliation(s)
- Zhuhao Wu
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN 47405, United States
| | - Hongwei Cai
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN 47405, United States
| | - Chunhui Tian
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN 47405, United States
| | - Zheng Ao
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN 47405, United States
| | - Lei Jiang
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN 47405, United States
| | - Feng Guo
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN 47405, United States
| |
Collapse
|
3
|
Richard B, Shahana C, Vivek R, M AR, Rasheed PA. Acoustic platforms meet MXenes - a new paradigm shift in the palette of biomedical applications. NANOSCALE 2023; 15:18156-18172. [PMID: 37947786 DOI: 10.1039/d3nr04901a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
The wide applicability of acoustics in the life of mankind spread over health, energy, environment, and others. These acoustic technologies rely on the properties of the materials with which they are made of. However, traditional devices have failed to develop into low-cost, portable devices and need to overcome issues like sensitivity, tunability, and applicability in biological in vivo studies. Nanomaterials, especially 2D materials, have already been proven to produce high optical contrast in photoacoustic applications. One such wonder kid in the materials family is MXenes, which are transition metal carbides, that are nowadays flourishing in the materials world. Recently, it has been demonstrated that MXene nanosheets and quantum dots can be synthesized by acoustic excitations. In addition, MXene can be used as a mechanical sensing material for building piezoresistive sensors to realize sound detection as it produces a sensitive response to pressure and vibration. It has also been demonstrated that MXene nanosheets show high photothermal conversion capability, which can be utilized in cancer treatment and photoacoustic imaging (PAI). In this review, we have rendered the role of acoustics in the palette of MXene, including acoustic synthetic strategies of MXenes, applications such as acoustic sensors, PAI, thermoacoustic devices, sonodynamic therapy, artificial ear drum, and others. The review also discusses the challenges and future prospects of using MXene in acoustic platforms in detail. To the best of our knowledge, this is the first review combining acoustic science in MXene research.
Collapse
Affiliation(s)
- Bartholomew Richard
- Department of Biological Sciences and Engineering, Indian Institute of Technology Palakkad, Palakkad, Kerala, 678557, India.
- Department of Chemistry, Indian Institute of Technology Palakkad, Palakkad, Kerala, 678557, India
| | - C Shahana
- Department of Chemistry, National Institute of Technology Calicut, Calicut, Kerala, 673601, India
| | - Raju Vivek
- Bio-Nano Theranostic Research Laboratory, Cancer Research Program (CRP), School of Life Sciences, Bharathiar University, Coimbatore, 641 046, India
| | - Amarendar Reddy M
- Department of Chemistry, School of Sciences, National Institute of Technology Andhra Pradesh, West Godavari, Andhra Pradesh, 534101, India
| | - P Abdul Rasheed
- Department of Biological Sciences and Engineering, Indian Institute of Technology Palakkad, Palakkad, Kerala, 678557, India.
- Department of Chemistry, Indian Institute of Technology Palakkad, Palakkad, Kerala, 678557, India
| |
Collapse
|
4
|
Kshetri KG, Nama N. Acoustophoresis around an elastic scatterer in a standing wave field. Phys Rev E 2023; 108:045102. [PMID: 37978594 DOI: 10.1103/physreve.108.045102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 09/11/2023] [Indexed: 11/19/2023]
Abstract
Acoustofluidic systems often employ prefabricated acoustic scatterers that perturb the imposed acoustic field to realize the acoustophoresis of immersed microparticles. We present a numerical study to investigate the time-averaged streaming and radiation force fields around a scatterer. Based on the streaming and radiation force field, we obtain the trajectories of the immersed microparticles with varying sizes and identify a critical transition size at which the motion of immersed microparticles in the vicinity of a prefabricated scatterer shifts from being streaming dominated to radiation dominated. We consider a range of acoustic frequencies to reveal that the critical transition size decreases with increasing frequency; this result explains the choice of acoustic frequencies in previously reported experimental studies. We also examine the impact of scatterer material and fluid properties on the streaming and radiation force fields, as well as on the critical transition size. Our results demonstrate that the critical transition size decreases with an increase in acoustic contrast factor: a nondimensional quantity that depends on material properties of the scatterer and the fluid. Our results provide a pathway to realize radiation force based manipulation of small particles by increasing the acoustic contrast factor of the scatterer, lowering the kinematic viscosity of the fluid, and increasing the acoustic frequency.
Collapse
Affiliation(s)
- Khemraj Gautam Kshetri
- Department of Mechanical & Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Nitesh Nama
- Department of Mechanical & Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| |
Collapse
|
5
|
Wang S, Wang X, You F, Xiao H. Review of Ultrasonic Particle Manipulation Techniques: Applications and Research Advances. MICROMACHINES 2023; 14:1487. [PMID: 37630023 PMCID: PMC10456655 DOI: 10.3390/mi14081487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/06/2023] [Accepted: 07/21/2023] [Indexed: 08/27/2023]
Abstract
Ultrasonic particle manipulation technique is a non-contact label-free method for manipulating micro- and nano-scale particles using ultrasound, which has obvious advantages over traditional optical, magnetic, and electrical micro-manipulation techniques; it has gained extensive attention in micro-nano manipulation in recent years. This paper introduces the basic principles and manipulation methods of ultrasonic particle manipulation techniques, provides a detailed overview of the current mainstream acoustic field generation methods, and also highlights, in particular, the applicable scenarios for different numbers and arrangements of ultrasonic transducer devices. Ultrasonic transducer arrays have been used extensively in various particle manipulation applications, and many sound field reconstruction algorithms based on ultrasonic transducer arrays have been proposed one after another. In this paper, unlike most other previous reviews on ultrasonic particle manipulation, we analyze and summarize the current reconstruction algorithms for generating sound fields based on ultrasonic transducer arrays and compare these algorithms. Finally, we explore the applications of ultrasonic particle manipulation technology in engineering and biological fields and summarize and forecast the research progress of ultrasonic particle manipulation technology. We believe that this review will provide superior guidance for ultrasonic particle manipulation methods based on the study of micro and nano operations.
Collapse
Affiliation(s)
| | - Xuewei Wang
- College of Information Engineering, Beijing Institute of Graphic Communication, Beijing 102627, China; (S.W.)
| | | | | |
Collapse
|
6
|
Yin C, Jiang X, Mann S, Tian L, Drinkwater BW. Acoustic Trapping: An Emerging Tool for Microfabrication Technology. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2207917. [PMID: 36942987 DOI: 10.1002/smll.202207917] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/25/2023] [Indexed: 06/18/2023]
Abstract
The high throughput deposition of microscale objects with precise spatial arrangement represents a key step in microfabrication technology. This can be done by creating physical boundaries to guide the deposition process or using printing technologies; in both approaches, these microscale objects cannot be further modified after they are formed. The utilization of dynamic acoustic fields offers a novel approach to facilitate real-time reconfigurable miniaturized systems in a contactless manner, which can potentially be used in physics, chemistry, biology, as well as materials science. Here, the physical interactions of microscale objects in an acoustic pressure field are discussed and how to fabricate different acoustic trapping devices and how to tune the spatial arrangement of the microscale objects are explained. Moreover, different approaches that can dynamically modulate microscale objects in acoustic fields are presented, and the potential applications of the microarrays in biomedical engineering, chemical/biochemical sensing, and materials science are highlighted alongside a discussion of future research challenges.
Collapse
Affiliation(s)
- Chengying Yin
- Key Laboratory of Biomedical Engineering of Ministry of Education, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, Department of Biomedical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xingyu Jiang
- Key Laboratory of Biomedical Engineering of Ministry of Education, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, Department of Biomedical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Stephen Mann
- Centre for Protolife Research and Centre for Organized Matter Chemistry, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
- Max Planck-Bristol Centre for Minimal Biology, University of Bristol, Bristol, BS8 1TS, UK
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Liangfei Tian
- Key Laboratory of Biomedical Engineering of Ministry of Education, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, Department of Biomedical Engineering, Zhejiang University, Hangzhou, 310027, China
- Binjiang Institute of Zhejiang University, 66 Dongxin Road, Hangzhou, 310053, China
- Department of Ultrasound, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Bruce W Drinkwater
- Faculty of Engineering, Queen's Building, University of Bristol, Bristol, BS8 1TR, UK
| |
Collapse
|
7
|
Shen L, Tian Z, Zhang J, Zhu H, Yang K, Li T, Rich J, Upreti N, Hao N, Pei Z, Jin G, Yang S, Liang Y, Chaohui W, Huang TJ. Acousto-dielectric tweezers for size-insensitive manipulation and biophysical characterization of single cells. Biosens Bioelectron 2023; 224:115061. [PMID: 36634509 DOI: 10.1016/j.bios.2023.115061] [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: 06/11/2022] [Revised: 10/03/2022] [Accepted: 01/03/2023] [Indexed: 01/07/2023]
Abstract
The intrinsic biophysical properties of cells, such as mechanical, acoustic, and electrical properties, are valuable indicators of a cell's function and state. However, traditional single-cell biophysical characterization methods are hindered by limited measurable properties, time-consuming procedures, and complex system setups. This study presents acousto-dielectric tweezers that leverage the balance between controllable acoustophoretic and dielectrophoretic forces applied on cells through surface acoustic waves and alternating current electric fields, respectively. Particularly, the balanced acoustophoretic and dielectrophoretic forces can trap cells at equilibrium positions independent of the cell size to differentiate between various cell-intrinsic mechanical, acoustic, and electrical properties. Experimental results show our mechanism has the potential for applications in single-cell analysis, size-insensitive cell separation, and cell phenotyping, which are all primarily based on cells' intrinsic biophysical properties. Our results also show the measured equilibrium position of a cell can inversely determine multiple biophysical properties, including membrane capacitance, cytoplasm conductivity, and acoustic contrast factor. With these features, our acousto-dielectric tweezing mechanism is a valuable addition to the resources available for biophysical property-based biological and medical research.
Collapse
Affiliation(s)
- Liang Shen
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA; State Key Laboratory of Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Zhenhua Tian
- Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA.
| | - Jinxin Zhang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Haodong Zhu
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Kaichun Yang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Teng Li
- Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Joseph Rich
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Neil Upreti
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Nanjing Hao
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Zhichao Pei
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Geonsoo Jin
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Shujie Yang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Yaosi Liang
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC, 27708, USA
| | - Wang Chaohui
- State Key Laboratory of Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China.
| | - Tony Jun Huang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA.
| |
Collapse
|
8
|
Ji F, Wu Y, Pumera M, Zhang L. Collective Behaviors of Active Matter Learning from Natural Taxes Across Scales. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2203959. [PMID: 35986637 DOI: 10.1002/adma.202203959] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/23/2022] [Indexed: 06/15/2023]
Abstract
Taxis orientation is common in microorganisms, and it provides feasible strategies to operate active colloids as small-scale robots. Collective taxes involve numerous units that collectively perform taxis motion, whereby the collective cooperation between individuals enables the group to perform efficiently, adaptively, and robustly. Hence, analyzing and designing collectives is crucial for developing and advancing microswarm toward practical or clinical applications. In this review, natural taxis behaviors are categorized and synthetic microrobotic collectives are discussed as bio-inspired realizations, aiming at closing the gap between taxis strategies of living creatures and those of functional active microswarms. As collective behaviors emerge within a group, the global taxis to external stimuli guides the group to conduct overall tasks, whereas the local taxis between individuals induces synchronization and global patterns. By encoding the local orientations and programming the global stimuli, various paradigms can be introduced for coordinating and controlling such collective microrobots, from the viewpoints of fundamental science and practical applications. Therefore, by discussing the key points and difficulties associated with collective taxes of different paradigms, this review potentially offers insights into mimicking natural collective behaviors and constructing intelligent microrobotic systems for on-demand control and preassigned tasks.
Collapse
Affiliation(s)
- Fengtong Ji
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, 999077, China
| | - Yilin Wu
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, 999077, China
| | - Martin Pumera
- Faculty of Electrical Engineering and Computer Science, VSB - Technical University of Ostrava, 17. listopadu 2172/15, Ostrava, 70800, Czech Republic
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Li Zhang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, 999077, China
| |
Collapse
|
9
|
McKibben N, Ryel B, Manzi J, Muramutsa F, Daw J, Subbaraman H, Estrada D, Deng Z. Aerosol jet printing of piezoelectric surface acoustic wave thermometer. MICROSYSTEMS & NANOENGINEERING 2023; 9:51. [PMID: 37152863 PMCID: PMC10159840 DOI: 10.1038/s41378-023-00492-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 12/19/2022] [Accepted: 01/15/2023] [Indexed: 05/09/2023]
Abstract
Surface acoustic wave (SAW) devices are a subclass of micro-electromechanical systems (MEMS) that generate an acoustic emission when electrically stimulated. These transducers also work as detectors, converting surface strain into readable electrical signals. Physical properties of the generated SAW are material dependent and influenced by external factors like temperature. By monitoring temperature-dependent scattering parameters a SAW device can function as a thermometer to elucidate substrate temperature. Traditional fabrication of SAW sensors requires labor- and cost- intensive subtractive processes that produce large volumes of hazardous waste. This study utilizes an innovative aerosol jet printer to directly write consistent, high-resolution, silver comb electrodes onto a Y-cut LiNbO3 substrate. The printed, two-port, 20 MHz SAW sensor exhibited excellent linearity and repeatability while being verified as a thermometer from 25 to 200 ∘C. Sensitivities of the printed SAW thermometer are - 96.9 × 1 0 - 6 ∘ C-1 and - 92.0 × 1 0 - 6 ∘ C-1 when operating in pulse-echo mode and pulse-receiver mode, respectively. These results highlight a repeatable path to the additive fabrication of compact high-frequency SAW thermometers.
Collapse
Affiliation(s)
- Nicholas McKibben
- Micron School of Materials Science and Engineering, Boise State University, 1910 W University Drive, Boise, ID 83725 USA
| | - Blake Ryel
- Department of Mechanical and Biomedical Engineering, Boise State University, Boise, ID 83725 USA
| | - Jacob Manzi
- School of Electrical Engineering and Computer Science, Oregon State University, 2500 NW Monroe Avenue, Corvallis, OR 97331 USA
| | - Florent Muramutsa
- Micron School of Materials Science and Engineering, Boise State University, 1910 W University Drive, Boise, ID 83725 USA
| | - Joshua Daw
- Idaho National Laboratory, Idaho Falls, ID 83415 USA
| | - Harish Subbaraman
- School of Electrical Engineering and Computer Science, Oregon State University, 2500 NW Monroe Avenue, Corvallis, OR 97331 USA
| | - David Estrada
- Micron School of Materials Science and Engineering, Boise State University, 1910 W University Drive, Boise, ID 83725 USA
- Idaho National Laboratory, Idaho Falls, ID 83415 USA
- Center for Advanced Energy Studies, Idaho Falls, ID 83401 USA
| | - Zhangxian Deng
- Department of Mechanical and Biomedical Engineering, Boise State University, Boise, ID 83725 USA
| |
Collapse
|
10
|
Chen Y, Wu Z, Sutlive J, Wu K, Mao L, Nie J, Zhao XZ, Guo F, Chen Z, Huang Q. Noninvasive prenatal diagnosis targeting fetal nucleated red blood cells. J Nanobiotechnology 2022; 20:546. [PMID: 36585678 PMCID: PMC9805221 DOI: 10.1186/s12951-022-01749-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 12/15/2022] [Indexed: 12/31/2022] Open
Abstract
Noninvasive prenatal diagnosis (NIPD) aims to detect fetal-related genetic disorders before birth by detecting markers in the peripheral blood of pregnant women, holding the potential in reducing the risk of fetal birth defects. Fetal-nucleated red blood cells (fNRBCs) can be used as biomarkers for NIPD, given their remarkable nature of carrying the entire genetic information of the fetus. Here, we review recent advances in NIPD technologies based on the isolation and analysis of fNRBCs. Conventional cell separation methods rely primarily on physical properties and surface antigens of fNRBCs, such as density gradient centrifugation, fluorescence-activated cell sorting, and magnetic-activated cell sorting. Due to the limitations of sensitivity and purity in Conventional methods, separation techniques based on micro-/nanomaterials have been developed as novel methods for isolating and enriching fNRBCs. We also discuss emerging methods based on microfluidic chips and nanostructured substrates for static and dynamic isolation of fNRBCs. Additionally, we introduce the identification techniques of fNRBCs and address the potential clinical diagnostic values of fNRBCs. Finally, we highlight the challenges and the future directions of fNRBCs as treatment guidelines in NIPD.
Collapse
Affiliation(s)
- Yanyu Chen
- grid.207374.50000 0001 2189 3846Academy of Medical Sciences, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052 China ,grid.49470.3e0000 0001 2331 6153School of Physics and Technology, Wuhan University, Wuhan, 430072 China
| | - Zhuhao Wu
- grid.411377.70000 0001 0790 959XDepartment of Intelligent Systems Engineering, Indiana University, Bloomington, IN 47405 USA
| | - Joseph Sutlive
- grid.38142.3c000000041936754XDivision of Thoracic and Cardiac Surgery, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115 USA
| | - Ke Wu
- grid.49470.3e0000 0001 2331 6153School of Physics and Technology, Wuhan University, Wuhan, 430072 China
| | - Lu Mao
- grid.207374.50000 0001 2189 3846Academy of Medical Sciences, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052 China
| | - Jiabao Nie
- grid.38142.3c000000041936754XDivision of Thoracic and Cardiac Surgery, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115 USA ,grid.261112.70000 0001 2173 3359Department of Biological Sciences, Northeastern University, Boston, MA 02115 USA
| | - Xing-Zhong Zhao
- grid.49470.3e0000 0001 2331 6153School of Physics and Technology, Wuhan University, Wuhan, 430072 China
| | - Feng Guo
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN, 47405, United States.
| | - Zi Chen
- Division of Thoracic and Cardiac Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA.
| | - Qinqin Huang
- The Research and Application Center of Precision Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, China.
| |
Collapse
|
11
|
Zhang X, Son R, Lin YJ, Gill A, Chen S, Qi T, Choi D, Wen J, Lu Y, Lin NYC, Chiou PY. Rapid prototyping of functional acoustic devices using laser manufacturing. LAB ON A CHIP 2022; 22:4327-4334. [PMID: 36285690 PMCID: PMC10122935 DOI: 10.1039/d2lc00725h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Acoustic patterning of micro-particles has many important biomedical applications. However, fabrication of such microdevices is costly and labor-intensive. Among conventional fabrication methods, photo-lithography provides high resolution but is expensive and time consuming, and not ideal for rapid prototyping and testing for academic applications. In this work, we demonstrate a highly efficient method for rapid prototyping of acoustic patterning devices using laser manufacturing. With this method we can fabricate a newly designed functional acoustic device in 4 hours. The acoustic devices fabricated using this method can achieve sub-wavelength, complex and non-periodic patterning of microparticles and biological objects with a spatial resolution of 60 μm across a large active manipulation area of 10 × 10 mm2.
Collapse
Affiliation(s)
- Xiang Zhang
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, USA.
| | - Rosa Son
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, USA.
| | - Yen-Ju Lin
- Department of Electrical and Computer Engineering, University of California at Los Angeles, USA
| | - Alexi Gill
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, USA.
| | - Shilin Chen
- Department of Chemical and Biomolecular Engineering, University of California at Los Angeles, USA
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine, University of California at Los Angeles, USA
| | - Tong Qi
- Department of Chemical and Biomolecular Engineering, University of California at Los Angeles, USA
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine, University of California at Los Angeles, USA
| | - David Choi
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, USA.
| | - Jing Wen
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine, University of California at Los Angeles, USA
| | - Yunfeng Lu
- Department of Chemical and Biomolecular Engineering, University of California at Los Angeles, USA
| | - Neil Y C Lin
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, USA.
- Department of Bioengineering, University of California at Los Angeles, USA
- Institute for Quantitative and Computational Biosciences, University of California at Los Angeles, USA
| | - Pei-Yu Chiou
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, USA.
| |
Collapse
|
12
|
Xu H, Ye BC. Integrated microfluidic platforms for tumor-derived exosome analysis. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
13
|
Fathnia F, Zamiri-Jafarian H. An analytical study of spatial resolution enhancement for a dual-frequency acoustic beamformer. ULTRASONICS 2022; 125:106792. [PMID: 35763886 DOI: 10.1016/j.ultras.2022.106792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
In this paper, we address an acoustic directed-self-assembly (DSA) problem for aiming to pattern particles based on creating an appropriate acoustic field by the fine adjustment of transducer operating parameters. The proposed idea is to incorporate the DSA problem with multi-frequency beamforming techniques. First, the boundary element method (BEM) is implemented for the direct modeling of the proposed DSA problem. Then, it is integrated with the concept of dual-frequency beamforming. In this study, the influence of changing excitation frequency is investigated on the spatial resolution enhancement of the pressure field. Also, the optimal frequency difference is calculated theoretically to produce two adjacent pressure traps with maximum separability and, therefore, maximum spatial resolution in a two-frequency acoustic beamformer without any restriction on the chamber shape. The performance of the proposed Dual-Frequency Beamforming (DFB) method is evaluated by simulations based on the finite element method (FEM) and compared with conventional Delay-And-Sum (DAS), Eigen Vector-Based (EigVec-based), and Bessel Beam techniques. Several evaluation metrics such as Full Width at Half Maximum (FWHM), Peak Side-lobe Level (PSL), Contrast Ratio (CR), Positioning Accuracy (PA), and processing time are considered for comparisons. Simulation results indicate the superiority of the proposed DFB method over the mentioned methods in separability and focusing precision when the two pressure traps are close to each other.
Collapse
Affiliation(s)
- Foroogh Fathnia
- Department of Electrical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran.
| | | |
Collapse
|
14
|
Leshno A, Kenigsberg A, Peleg-Levy H, Piperno S, Skaat A, Shpaisman H. Acoustic Manipulation of Intraocular Particles. MICROMACHINES 2022; 13:1362. [PMID: 36014284 PMCID: PMC9414468 DOI: 10.3390/mi13081362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/14/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
Various conditions cause dispersions of particulate matter to circulate inside the anterior chamber of a human eye. These dispersed particles might reduce visual acuity or promote elevation of intraocular pressure (IOP), causing secondary complications such as particle related glaucoma, which is a major cause of blindness. Medical and surgical treatment options are available to manage these complications, yet preventive measures are not currently available. Conceptually, manipulating these dispersed particles in a way that reduces their negative impact could prevent these complications. However, as the eye is a closed system, manipulating dispersed particles in it is challenging. Standing acoustic waves have been previously shown to be a versatile tool for manipulation of bioparticles from nano-sized extracellular vesicles up to millimeter-sized organisms. Here we introduce for the first time a novel method utilizing standing acoustic waves to noninvasively manipulate intraocular particles inside the anterior chamber. Using a cylindrical acoustic resonator, we show ex vivo manipulation of pigmentary particles inside porcine eyes. We study the effect of wave intensity over time and rule out temperature changes that could damage tissues. Optical coherence tomography and histologic evaluations show no signs of damage or any other side effect that could be attributed to acoustic manipulation. Finally, we lay out a clear pathway to how this technique can be used as a non-invasive tool for preventing secondary glaucoma. This concept has the potential to control and arrange intraocular particles in specific locations without causing any damage to ocular tissue and allow aqueous humor normal outflow which is crucial for maintaining proper IOP levels.
Collapse
Affiliation(s)
- Ari Leshno
- Sheba Medical Center, Tel Hashomer, Ramat Gan 5262000, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Avraham Kenigsberg
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Heli Peleg-Levy
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Silvia Piperno
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Alon Skaat
- Sheba Medical Center, Tel Hashomer, Ramat Gan 5262000, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Hagay Shpaisman
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| |
Collapse
|
15
|
Zhang J, Zheng T, Tang L, Qi H, Wu X, Zhu L. Bubble-Enhanced Mixing Induced by Standing Surface Acoustic Waves (SSAWs) in Microchannel. MICROMACHINES 2022; 13:mi13081337. [PMID: 36014259 PMCID: PMC9414155 DOI: 10.3390/mi13081337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/08/2022] [Accepted: 08/15/2022] [Indexed: 05/21/2023]
Abstract
BAW-based micromixers usually achieve mixing enhancement with acoustic-induced bubbles, while SAW-based micromixers usually enhance mixing efficiency by varying the configuration of IDTs and microchannels. In this paper, bubble-enhanced acoustic mixing induced by standing surface acoustic waves (SSAWs) in a microchannel is proposed and experimentally demonstrated. Significant enhancement in the mixing efficiency was achieved after the bubbles were stimulated in our acoustofluidic microdevice. With an applied voltage of 5 V, 50 times amplified, the proposed mixing microdevice could achieve 90.8% mixing efficiency within 60 s at a flow rate of 240 μL/h. The bubbles were generated from acoustic cavitation assisted by the temperature increase resulting from the viscous absorption of acoustic energy. Our results also suggest that a temperature increase is harmful to microfluidic devices and temperature monitoring. Regulation is essential, especially in chemical and biological applications.
Collapse
Affiliation(s)
- Jingjing Zhang
- School of Mechatronics Engineering, Xi’an Technological University, Xi’an 710021, China
- Correspondence:
| | - Tengfei Zheng
- State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China
- Shaanxi Key Laboratory of Intelligent Robots, Xi’an Jiaotong University, Xi’an 710049, China
| | - Lin Tang
- School of Mechatronics Engineering, Xi’an Technological University, Xi’an 710021, China
| | - Hui Qi
- School of Mechatronics Engineering, Xi’an Technological University, Xi’an 710021, China
| | - Xiaoyu Wu
- School of Mechatronics Engineering, Xi’an Technological University, Xi’an 710021, China
| | - Linlong Zhu
- School of Mechatronics Engineering, Xi’an Technological University, Xi’an 710021, China
| |
Collapse
|
16
|
Gao X, Xie L, Zhou J. Active control of dielectric nanoparticle optical resonance through electrical charging. Sci Rep 2022; 12:10117. [PMID: 35710911 PMCID: PMC9203548 DOI: 10.1038/s41598-022-13251-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/23/2022] [Indexed: 11/14/2022] Open
Abstract
A novel method for active control of resonance position of dielectric nanoparticles by increasing the excess charges carried by the nanoparticles is proposed in this paper. We show that as the excess charges carried by the particle increase, the oscillation frequency of excess charges will gradually increase, when it is equal to the incident frequency, resonance occurs due to resonant excitation of the excess charges. What is more, the formula of charges carried by an individual particle required to excite the resonance at any wavelength position is proposed. The resonance position can be directly controlled by means of particle charging, and the enhancement of resonance intensity is more obvious. This work has opened new avenues for the active control of plasmon resonances, which shows great promise for realizing tunable optical properties of dielectric nanoparticles.
Collapse
Affiliation(s)
- Xuebang Gao
- College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, 730000, China.,Key Laboratory of Mechanics on Disaster and Environment in Western China, Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Li Xie
- College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, 730000, China. .,Key Laboratory of Mechanics on Disaster and Environment in Western China, Ministry of Education, Lanzhou University, Lanzhou, 730000, China.
| | - Jùn Zhou
- College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, 730000, China.,Key Laboratory of Mechanics on Disaster and Environment in Western China, Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| |
Collapse
|
17
|
Yuan S, Lin X, He Q. Reconfigurable assembly of colloidal motors towards interactive soft materials and systems. J Colloid Interface Sci 2022; 612:43-56. [PMID: 34974257 DOI: 10.1016/j.jcis.2021.12.135] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 12/19/2022]
Abstract
Due to the highly flexible reconfiguration of swarms, collective behaviors have provided various natural organisms with a powerful adaptivity to the complex environment. To mimic these natural systems and construct artificial intelligent soft materials, self-propelled colloidal motors that can convert diverse forms of energy into swimming-like movement in fluids afford an ideal model system at the micro-/nanoscales. Through the coupling of local gradient fields, colloidal motors driven by chemical reactions or externally physical fields can assembly into swarms with adaptivity. Here, we summarize the progress on reconfigurable assembly of colloidal motors which is driven and modulated by chemical reactions and external fields (e.g., light, ultrasonic, electric, and magnetic fields). The adaptive reconfiguration behaviors and the corresponding mechanisms are discussed in detail. The future directions and challenges are also addressed for developing colloidal motor-based interactive soft matter materials and systems with adaptation and interactive functions comparable to that of natural systems.
Collapse
Affiliation(s)
- Shurui Yuan
- Key Laboratory of Microsystems and Microstructures Manufacturing (Ministry of Education), School of Medicine and Health, Harbin Institute of Technology, YiKuangJie 2, Harbin 150080, China
| | - Xiankun Lin
- Key Laboratory of Microsystems and Microstructures Manufacturing (Ministry of Education), School of Medicine and Health, Harbin Institute of Technology, YiKuangJie 2, Harbin 150080, China.
| | - Qiang He
- Key Laboratory of Microsystems and Microstructures Manufacturing (Ministry of Education), School of Medicine and Health, Harbin Institute of Technology, YiKuangJie 2, Harbin 150080, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China; Oujiang Laboratory, Wenzhou 325000, China.
| |
Collapse
|
18
|
Hu Q, Ma T, Zhang Q, Wang J, Yang Y, Cai F, Zheng H. 3-D Acoustic Tweezers Using a 2-D Matrix Array With Time-Multiplexed Traps. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2021; 68:3646-3653. [PMID: 34280096 DOI: 10.1109/tuffc.2021.3098191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The use of acoustic tweezers for precise manipulation of microparticles in the aqueous environment is essential and challenging for biomechanical applications in vivo. A 3-D acoustic tweezer is developed in this study for 3-D manipulation by using a two-dimensional (2-D) phased array consisting of 256 elements operating at 1.04 MHz. The emission phases of each element are iteratively determined by a backpropagation algorithm to generate multiple acoustic traps. Different traps are multiplexed in time, thus forming synthesized acoustic fields. We demonstrate the 3-D levitation and translation of positive acoustic contrast particles, a major class of bioparticles, in water by different acoustic traps, and compare the positional deviation along the intended path via experimentally measured trajectories. Improved manipulating stability was achieved by multiplexed acoustic traps. The 3-D acoustic tweezers proposed in this study provide a versatile approach of contactless bioparticle trapping and translation, paving the way toward future application of nanodroplet and microbubble manipulations.
Collapse
|
19
|
Zhang P, Rufo J, Chen C, Xia J, Tian Z, Zhang L, Hao N, Zhong Z, Gu Y, Chakrabarty K, Huang TJ. Acoustoelectronic nanotweezers enable dynamic and large-scale control of nanomaterials. Nat Commun 2021; 12:3844. [PMID: 34158489 PMCID: PMC8219664 DOI: 10.1038/s41467-021-24101-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 05/04/2021] [Indexed: 11/25/2022] Open
Abstract
The ability to precisely manipulate nano-objects on a large scale can enable the fabrication of materials and devices with tunable optical, electromagnetic, and mechanical properties. However, the dynamic, parallel manipulation of nanoscale colloids and materials remains a significant challenge. Here, we demonstrate acoustoelectronic nanotweezers, which combine the precision and robustness afforded by electronic tweezers with versatility and large-field dynamic control granted by acoustic tweezing techniques, to enable the massively parallel manipulation of sub-100 nm objects with excellent versatility and controllability. Using this approach, we demonstrated the complex patterning of various nanoparticles (e.g., DNAs, exosomes, ~3 nm graphene flakes, ~6 nm quantum dots, ~3.5 nm proteins, and ~1.4 nm dextran), fabricated macroscopic materials with nano-textures, and performed high-resolution, single nanoparticle manipulation. Various nanomanipulation functions, including transportation, concentration, orientation, pattern-overlaying, and sorting, have also been achieved using a simple device configuration. Altogether, acoustoelectronic nanotweezers overcome existing limitations in nano-manipulation and hold great potential for a variety of applications in the fields of electronics, optics, condensed matter physics, metamaterials, and biomedicine. Precise and dynamic manipulation of nano-objects on a large scale has been challenging. Here, the authors introduce acoustoelectronic nanotweezers, combining precision of electronic tweezers with large-field dynamic control of acoustic tweezers, demonstrating complex patterning of sub-100 nm objects.
Collapse
Affiliation(s)
- Peiran Zhang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Joseph Rufo
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Chuyi Chen
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Jianping Xia
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Zhenhua Tian
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Liying Zhang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Nanjing Hao
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Zhanwei Zhong
- Department of Electrical and Computer Engineering, Duke University, Durham, NC, USA
| | - Yuyang Gu
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | | | - Tony Jun Huang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA.
| |
Collapse
|
20
|
Soto F, Wang J, Deshmukh S, Demirci U. Reversible Design of Dynamic Assemblies at Small Scales. ADVANCED INTELLIGENT SYSTEMS (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 3:2000193. [PMID: 35663639 PMCID: PMC9165726 DOI: 10.1002/aisy.202000193] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Indexed: 05/08/2023]
Abstract
Emerging bottom-up fabrication methods have enabled the assembly of synthetic colloids, microrobots, living cells, and organoids to create intricate structures with unique properties that transcend their individual components. This review provides an access point to the latest developments in externally driven assembly of synthetic and biological components. In particular, we emphasize reversibility, which enables the fabrication of multiscale systems that would not be possible under traditional techniques. Magnetic, acoustic, optical, and electric fields are the most promising methods for controlling the reversible assembly of biological and synthetic subunits since they can reprogram their assembly by switching on/off the external field or shaping these fields. We feature capabilities to dynamically actuate the assembly configuration by modulating the properties of the external stimuli, including frequency and amplitude. We describe the design principles which enable the assembly of reconfigurable structures. Finally, we foresee that the high degree of control capabilities offered by externally driven assembly will enable broad access to increasingly robust design principles towards building advanced dynamic intelligent systems.
Collapse
Affiliation(s)
- Fernando Soto
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine Stanford University, Palo Alto, California, 94304-5427, USA
- Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Palo Alto, California 94304-5427, USA
| | - Jie Wang
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine Stanford University, Palo Alto, California, 94304-5427, USA
- Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Palo Alto, California 94304-5427, USA
| | - Shreya Deshmukh
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine Stanford University, Palo Alto, California, 94304-5427, USA
- Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Palo Alto, California 94304-5427, USA
- Department of Bioengineering, School of Engineering, School of Medicine, Stanford University, Stanford, California, 94305-4125, USA
| | - Utkan Demirci
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine Stanford University, Palo Alto, California, 94304-5427, USA
- Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Palo Alto, California 94304-5427, USA
| |
Collapse
|
21
|
Zhao L, Niu P, Casals E, Zeng M, Wu C, Yang Y, Sun S, Zheng Z, Wang Z, Ning Y, Duan X, Pang W. Phase separation of a nonionic surfactant aqueous solution in a standing surface acoustic wave for submicron particle manipulation. LAB ON A CHIP 2021; 21:660-667. [PMID: 33393566 DOI: 10.1039/d0lc00986e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Acoustic manipulation of submicron particles in a controlled manner has been challenging to date because of the increased contribution of acoustic streaming, which leads to fluid mixing and homogenization. This article describes the patterning of submicron particles and the migration of their patterned locations from pressure nodes to antinodes in a non-ionic surfactant (Tween 20) aqueous solution in a conventional standing surface acoustic wave field with a wavelength of 150 μm. Phase separation of the aqueous surfactant solution occurs when they are exposed to acoustic waves, probably due to the "clouding behavior" of non-ionic surfactant. The generated surfactant precipitates are pushed to the pressure antinodes due to the negative acoustic contrast factor relative to water. Compared with the mixing appearance in pure water media, the patterning behavior of submicron particles with a diameter of 300 nm dominated by acoustic radiation force is readily apparent in an aqueous solution with 2% volumetric concentration of Tween 20 surfactant, thanks to the suppression effect of acoustic streaming in inhomogeneous fluids. These submicron particles are first pushed to acoustic pressure nodes and then are migrated to antinodes where the surfactant precipitates stay. More attractively, the migration of acoustically patterned locations is not only limited to submicron particles, but also occurs to micrometer-sized particles in solutions with higher surfactant concentrations. These findings open up a novel avenue for controllable acoustic manipulation.
Collapse
Affiliation(s)
- Lei Zhao
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China.
| | - Pengfei Niu
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China.
| | - Eudald Casals
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Muling Zeng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Chen Wu
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China.
| | - Yang Yang
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China.
| | - Sheng Sun
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China.
| | - Zongwei Zheng
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China.
| | - Zhaoxun Wang
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China.
| | - Yuan Ning
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China.
| | - Xuexin Duan
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China.
| | - Wei Pang
- State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China.
| |
Collapse
|
22
|
The Energy Conversion behind Micro-and Nanomotors. MICROMACHINES 2021; 12:mi12020222. [PMID: 33671593 PMCID: PMC7927089 DOI: 10.3390/mi12020222] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 01/09/2023]
Abstract
Inspired by the autonomously moving organisms in nature, artificially synthesized micro-nano-scale power devices, also called micro-and nanomotors, are proposed. These micro-and nanomotors that can self-propel have been used for biological sensing, environmental remediation, and targeted drug transportation. In this article, we will systematically overview the conversion of chemical energy or other forms of energy in the external environment (such as electrical energy, light energy, magnetic energy, and ultrasound) into kinetic mechanical energy by micro-and nanomotors. The development and progress of these energy conversion mechanisms in the past ten years are reviewed, and the broad application prospects of micro-and nanomotors in energy conversion are provided.
Collapse
|
23
|
García-Valenzuela A, Fakhfouri A, Oliva-Ramírez M, Rico-Gavira V, Rojas TC, Alvarez R, Menzel SB, Palmero A, Winkler A, González-Elipe AR. Patterning and control of the nanostructure in plasma thin films with acoustic waves: mechanical vs. electrical polarization effects. MATERIALS HORIZONS 2021; 8:515-524. [PMID: 34821267 DOI: 10.1039/d0mh01540g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nanostructuration and 2D patterning of thin films are common strategies to fabricate biomimetic surfaces and components for microfluidic, microelectronic or photonic applications. This work presents the fundamentals of a surface nanotechnology procedure for laterally tailoring the nanostructure and crystalline structure of thin films that are plasma deposited onto acoustically excited piezoelectric substrates. Using magnetron sputtering as plasma technique and TiO2 as case example, it is demonstrated that the deposited films depict a sub-millimetre 2D pattern that, characterized by large lateral differences in nanostructure, density (up to 50%), thickness, and physical properties between porous and dense zones, reproduces the wave features distribution of the generated acoustic waves (AW). Simulation modelling of the AW propagation and deposition experiments carried out without plasma and under alternative experimental conditions reveal that patterning is not driven by the collision of ad-species with mechanically excited lattice atoms of the substrate, but emerges from their interaction with plasma sheath ions locally accelerated by the AW-induced electrical polarization field developed at the substrate surface and growing film. The possibilities of the AW activation as a general approach for the tailored control of nanostructure, pattern size, and properties of thin films are demonstrated through the systematic variation of deposition conditions and the adjustment of AW operating parameters.
Collapse
Affiliation(s)
- Aurelio García-Valenzuela
- Nanotechnology on Surfaces and Plasma Laboratory, Instituto de Ciencia de Materiales de Sevilla (CSIC-Univ. Sevilla), Avda. Américo Vespucio 49, 41092 Sevilla, Spain.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
|
25
|
|
26
|
Liu P, Tian Z, Hao N, Bachman H, Zhang P, Hu J, Huang TJ. Acoustofluidic multi-well plates for enrichment of micro/nano particles and cells. LAB ON A CHIP 2020; 20:3399-3409. [PMID: 32779677 PMCID: PMC7494569 DOI: 10.1039/d0lc00378f] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Controllable enrichment of micro/nanoscale objects plays a significant role in many biomedical and biochemical applications, such as increasing the detection sensitivity of assays, or improving the structures of bio-engineered tissues. However, few techniques can perform concentrations of micro/nano objects in multi-well plates, a very common laboratory vessel. In this work, we develop an acoustofluidic multi-well plate, which adopts an array of simple, low-cost and commercially available ring-shaped piezoelectric transducers for rapid and robust enrichment of micro/nanoscale particles/cells in each well of the plate. The enrichment mechanism is validated and characterized through both numerical simulations and experiments. We observe that the ring-shaped piezoelectric transducer can generate circular standing flexural waves in the substrate of each well, and that the vibrations can induce acoustic streaming near the interface between the substrate and a fluid droplet placed within the well; this streaming can drive micro/nanoscale objects to the center of the droplet for enrichment. Moreover, the acoustofluidic multi-well plate can realize simultaneous and consistent enrichment of biological cells in each well of the plate. With merits such as simplicity, controllability, low cost, and excellent compatibility with other downstream analysis tools, the developed acoustofluidic multi-well plate could be a versatile tool for many applications such as micro/nano fabrication, self-assembly, biomedical/biochemical sensing, and tissue engineering.
Collapse
Affiliation(s)
- Pengzhan Liu
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA.
| | | | | | | | | | | | | |
Collapse
|
27
|
Controlling oleogel crystallization using ultrasonic standing waves. Sci Rep 2020; 10:14448. [PMID: 32879336 PMCID: PMC7468300 DOI: 10.1038/s41598-020-71177-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 08/12/2020] [Indexed: 01/29/2023] Open
Abstract
Oleogels are lipid-based soft materials composed of large fractions of oil (> 85%) developed as saturated and hydrogenated fat substitutes to reduce cardiovascular diseases caused by obesity. Promising oleogels are unstable during storage, and to improve their stability careful control of the crystalline network is necessary. However, this is unattainable with state-of-the-art technologies. We employ ultrasonic standing wave (USSW) fields to modify oleogel structure. During crystallization, the growing crystals move towards the US-SW nodal planes. Homogeneous, dense bands of microcrystals form independently of oleogelator type, concentration, and cooling rate. The thickness of these bands is proportional to the USSW wavelength. These new structures act as physical barriers in reducing the migration kinetics of a liposoluble colorant compared to statically crystallized oleogels. These results may extend beyond oleogels to potentially be used wherever careful control of the crystallization process and final structure of a system is needed, such as in the cosmetics, pharmaceutical, chemical, and food industries.
Collapse
|
28
|
Wan T, Guan P, Guan X, Hu L, Wu T, Cazorla C, Chu D. Facile Patterning of Silver Nanowires with Controlled Polarities via Inkjet-Assisted Manipulation of Interface Adhesion. ACS APPLIED MATERIALS & INTERFACES 2020; 12:34086-34094. [PMID: 32643927 DOI: 10.1021/acsami.0c07950] [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
Facile patterning technologies of silver nanowires (AgNWs) with low-cost, high-resolution, designable, scalable, substrate-independent, and transferable characteristics are highly desired. However, it remains a grand challenge for any material processing method to fulfil all desirable features. Herein, a new patterning method is introduced by combining inkjet printing with adhesion manipulation of substrate interfaces. Both positive and negative patterns (i.e., AgNW grid and rectangular patterns) have been simultaneously achieved, and the pattern polarity can be reversed through adhesion modification with judiciously selected supporting layers. The electrical performance of the AgNW grids depends on the AgNW interlocking structure, manifesting a strong structure-property correlation. High-resolution and complex AgNW patterns with line width and spacing as small as 10 μm have been demonstrated through selective deposition of poly(methyl methacrylate) layers. In addition, customized AgNW patterns, such as logos and words, can be fabricated onto A4-size samples and subsequently transferred to targeted substrates, including Si wafers, a curved glass vial, and a beaker. This reported inkjet-assisted process therefore offers a new effective route to manipulate AgNWs for advanced device applications.
Collapse
Affiliation(s)
- Tao Wan
- School of Materials Science and Engineering, The University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
| | - Peiyuan Guan
- School of Materials Science and Engineering, The University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
| | - Xinwei Guan
- School of Materials Science and Engineering, The University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
| | - Long Hu
- School of Materials Science and Engineering, The University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
| | - Tom Wu
- School of Materials Science and Engineering, The University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
| | - Claudio Cazorla
- School of Materials Science and Engineering, The University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
| | - Dewei Chu
- School of Materials Science and Engineering, The University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
| |
Collapse
|
29
|
Rezk AR, Ahmed H, Brain TL, Castro JO, Tan MK, Langley J, Cox N, Mondal J, Li W, Ashokkumar M, Yeo LY. Free Radical Generation from High-Frequency Electromechanical Dissociation of Pure Water. J Phys Chem Lett 2020; 11:4655-4661. [PMID: 32453583 DOI: 10.1021/acs.jpclett.0c01227] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We reveal a unique mechanism by which pure water can be dissociated to form free radicals without requiring catalysts, electrolytes, or electrode contact by means of high-frequency nanometer-amplitude electromechanical surface vibrations in the form of surface acoustic waves (SAWs) generated on a piezoelectric substrate. The physical undulations associated with these mechanical waves, in concert with the evanescent electric field arising from the piezoelectric coupling, constitute half-wavelength "nanoelectrochemical cells" in which liquid is trapped within the SAW potential minima with vertical dimensions defined by the wave amplitude (∼10 nm), thereby forming highly confined polarized regions with intense electric field strengths that enable the breakdown of water. The ions and free radicals that are generated rapidly electromigrate under the high field intensity in addition to being convectively transported away from the cells by the bulk liquid recirculation generated by the acoustic excitation, thereby overcoming mass transport limitations that lead to ion recombination.
Collapse
Affiliation(s)
- Amgad R Rezk
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Heba Ahmed
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Tarra L Brain
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Jasmine O Castro
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Ming K Tan
- School of Engineering, Monash University Malaysia, 47500 Bandar Sunway, Selangor, Malaysia
| | - Julien Langley
- Research School of Chemistry, The Australian National University, Canberra, ACT 2601, Australia
| | - Nicholas Cox
- Research School of Chemistry, The Australian National University, Canberra, ACT 2601, Australia
| | - Joydip Mondal
- School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| | - Wu Li
- School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| | | | - Leslie Y Yeo
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| |
Collapse
|
30
|
Zheng T, Wang C, Xu C. Tritoroidal particle rings formation in open microfluidics induced by standing surface acoustic waves. Electrophoresis 2020; 41:983-990. [PMID: 32056225 DOI: 10.1002/elps.201900361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 01/11/2020] [Accepted: 02/02/2020] [Indexed: 11/09/2022]
Abstract
In this paper, the particle movements in a sessile droplet induced by standing surface acoustic waves (SSAWs) are studied. Tritoroidal particle rings are formed under the interaction of acoustic field and electric field. The experimental results demonstrate that the electric field plays an important role in patterning nanoparticles. The electric field can define the droplet shape due to electrowetting. When the droplet approximates a hemisphere, the acoustic radiation force induced by SSAWs drives the particles to form tritoroidal particle rings. When the droplet approximates a convex plate, the drag force induced by acoustic steaming drives the particle to move. The results will be useful for better understanding the nanoparticle movements in a sessile droplet, which is important to explain the mechanism that SSAWs enhance reaction and crystallization in droplet.
Collapse
Affiliation(s)
- Tengfei Zheng
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, P.R. China.,Shaanxi Key Lab of Intelligent Robots, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Chaohui Wang
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, P.R. China.,Shaanxi Key Lab of Intelligent Robots, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Chaoping Xu
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, P.R. China.,Shaanxi Key Lab of Intelligent Robots, Xi'an Jiaotong University, Xi'an, P.R. China
| |
Collapse
|
31
|
Advances in Micromanipulation Actuated by Vibration-Induced Acoustic Waves and Streaming Flow. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10041260] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The use of vibration and acoustic characteristics for micromanipulation has been prevalent in recent years. Due to high biocompatibility, non-contact operation, and relatively low cost, the micromanipulation actuated by the vibration-induced acoustic wave and streaming flow has been widely applied in the sorting, translating, rotating, and trapping of targets at the submicron and micron scales, especially particles and single cells. In this review, to facilitate subsequent research, we summarize the fundamental theories of manipulation driven by vibration-induced acoustic waves and streaming flow. These methods are divided into two types: actuated by the acoustic wave, and actuated by the steaming flow induced by vibrating geometric structures. Recently proposed representative vibroacoustic-driven micromanipulation methods are introduced and compared, and their advantages and disadvantages are summarized. Finally, prospects are presented based on our review of the recent advances and developing trends.
Collapse
|
32
|
Wang H, Pumera M. Coordinated behaviors of artificial micro/nanomachines: from mutual interactions to interactions with the environment. Chem Soc Rev 2020; 49:3211-3230. [DOI: 10.1039/c9cs00877b] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The interactions leading to coordinated behaviors of artificial micro/nanomachines are reviewed.
Collapse
Affiliation(s)
- Hong Wang
- School of Chemical Engineering & Technology
- China University of Mining and Technology
- Xuzhou
- P. R. China
| | - Martin Pumera
- Center for Advanced Functional Nanorobots
- Department of Inorganic Chemistry
- University of Chemistry and Technology Prague
- CZ-166 28 Prague
- Czech Republic
| |
Collapse
|
33
|
Rezk AR, Ahmed H, Ramesan S, Yeo LY. High Frequency Sonoprocessing: A New Field of Cavitation-Free Acoustic Materials Synthesis, Processing, and Manipulation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 8:2001983. [PMID: 33437572 PMCID: PMC7788597 DOI: 10.1002/advs.202001983] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 09/17/2020] [Indexed: 04/14/2023]
Abstract
Ultrasound constitutes a powerful means for materials processing. Similarly, a new field has emerged demonstrating the possibility for harnessing sound energy sources at considerably higher frequencies (10 MHz to 1 GHz) compared to conventional ultrasound (⩽3 MHz) for synthesizing and manipulating a variety of bulk, nanoscale, and biological materials. At these frequencies and the typical acoustic intensities employed, cavitation-which underpins most sonochemical or, more broadly, ultrasound-mediated processes-is largely absent, suggesting that altogether fundamentally different mechanisms are at play. Examples include the crystallization of novel morphologies or highly oriented structures; exfoliation of 2D quantum dots and nanosheets; polymer nanoparticle synthesis and encapsulation; and the possibility for manipulating the bandgap of 2D semiconducting materials or the lipid structure that makes up the cell membrane, the latter resulting in the ability to enhance intracellular molecular uptake. These fascinating examples reveal how the highly nonlinear electromechanical coupling associated with such high-frequency surface vibration gives rise to a variety of static and dynamic charge generation and transfer effects, in addition to molecular ordering, polarization, and assembly-remarkably, given the vast dimensional separation between the acoustic wavelength and characteristic molecular length scales, or between the MHz-order excitation frequencies and typical THz-order molecular vibration frequencies.
Collapse
Affiliation(s)
- Amgad R. Rezk
- Micro/Nanophysics Research LaboratorySchool of EngineeringRMIT UniversityMelbourneVIC3000Australia
| | - Heba Ahmed
- Micro/Nanophysics Research LaboratorySchool of EngineeringRMIT UniversityMelbourneVIC3000Australia
| | - Shwathy Ramesan
- Micro/Nanophysics Research LaboratorySchool of EngineeringRMIT UniversityMelbourneVIC3000Australia
| | - Leslie Y. Yeo
- Micro/Nanophysics Research LaboratorySchool of EngineeringRMIT UniversityMelbourneVIC3000Australia
| |
Collapse
|
34
|
Liu P, Tang Q, Su S, Hu J, Yu Y. Modeling and Analysis of the Two-Dimensional Axisymmetric Acoustofluidic Fields in the Probe-Type and Substrate-Type Ultrasonic Micro/Nano Manipulation Systems. MICROMACHINES 2019; 11:E22. [PMID: 31878198 PMCID: PMC7019555 DOI: 10.3390/mi11010022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/13/2019] [Accepted: 12/20/2019] [Indexed: 11/17/2022]
Abstract
The probe-type and substrate-type ultrasonic micro/nano manipulation systems have proven to be two kinds of powerful tools for manipulating micro/nanoscale materials. Numerical simulations of acoustofluidic fields in these two kinds of systems can not only be used to explain and analyze the physical mechanisms of experimental phenomena, but also provide guidelines for optimization of device parameters and working conditions. However, in-depth quantitative study and analysis of acoustofluidic fields in the two ultrasonic micro/nano manipulation systems have scarcely been reported. In this paper, based on the finite element method (FEM), we numerically investigated the two-dimensional (2D) axisymmetric acoustofluidic fields in the probe-type and substrate-type ultrasonic micro/nano manipulation systems by the perturbation method (PM) and Reynolds stress method (RSM), respectively. Through comparing the simulation results computed by the two methods and the experimental verifications, the feasibility and reasonability of the two methods in simulating the acoustofluidic fields in these two ultrasonic micro/nano manipulation systems have been validated. Moreover, the effects of device parameters and working conditions on the acoustofluidic fields are clarified by the simulation results and qualitatively verified by the experiments.
Collapse
Affiliation(s)
- Pengzhan Liu
- State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Qiang Tang
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huaian 223003, China;
| | - Songfei Su
- School of Mechanical Engineering, Nanjing Institute of Technology, Nanjing 211167, China;
| | - Jie Hu
- School of Engineering, Jiangxi Agricultural University, Nanchang 330045, China;
| | - Yang Yu
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| |
Collapse
|
35
|
Tung KW, Chung PS, Wu C, Man T, Tiwari S, Wu B, Chou YF, Yang FL, Chiou PY. Deep, sub-wavelength acoustic patterning of complex and non-periodic shapes on soft membranes supported by air cavities. LAB ON A CHIP 2019; 19:3714-3725. [PMID: 31584051 DOI: 10.1039/c9lc00612e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Arbitrary patterning of micro-objects in liquid is crucial to many biomedical applications. Among conventional methodologies, acoustic approaches provide superior biocompatibility but are intrinsically limited to producing periodic patterns at low resolution due to the nature of standing waves and the coupling between fluid and structure vibrations. This work demonstrates a near-field acoustic platform capable of synthesizing high resolution, complex and non-periodic energy potential wells. A thin and viscoelastic membrane is utilized to modulate the acoustic wavefront on a deep, sub-wavelength scale by suppressing the structural vibration selectively on the platform. Using 3 MHz excitation (λ∼ 500 μm in water), we have experimentally validated such a concept by realizing patterning of microparticles and cells with a line resolution of 50 μm (one tenth of the wavelength). Furthermore, massively parallel patterning across a 3 × 3 mm2 area has been achieved. This new acoustic wavefront modulation mechanism is powerful for manufacturing complex biologic products.
Collapse
Affiliation(s)
- Kuan-Wen Tung
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095, USA.
| | - Pei-Shan Chung
- Department of Bioengineering, University of California at Los Angeles, 410 Westwood Plaza, Los Angeles, CA 90095, USA
| | - Cong Wu
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Tat Chee Ave, Kowloon Tong, Hong Kong
| | - Tianxing Man
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095, USA.
| | - Sidhant Tiwari
- Department of Electrical and Computer Engineering, University of California at Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095, USA
| | - Ben Wu
- Department of Bioengineering, University of California at Los Angeles, 410 Westwood Plaza, Los Angeles, CA 90095, USA and Department of Materials Science and Engineering, University of California at Los Angeles, 410 Westwood Plaza, Los Angeles, CA 90095, USA and Division of Advanced Prosthodontics, School of Dentistry, University of California at Los Angeles, 714 Tiverton Ave, Los Angeles, CA 90024, USA and Department of Orthopedic Surgery, School of Medicine, University of California at Los Angeles, 10833 Le Conte Ave, Los Angeles, CA 90095, USA
| | - Yuan-Fang Chou
- Department of Mechanical and Aerospace Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Rd, Da'an District, Taipei City, 10617, Taiwan
| | - Fu-Ling Yang
- Department of Mechanical and Aerospace Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Rd, Da'an District, Taipei City, 10617, Taiwan
| | - Pei-Yu Chiou
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095, USA. and Department of Bioengineering, University of California at Los Angeles, 410 Westwood Plaza, Los Angeles, CA 90095, USA
| |
Collapse
|
36
|
Khalid M, Ray A, Cohen S, Tassieri M, Demčenko A, Tseng D, Reboud J, Ozcan A, Cooper JM. Computational Image Analysis of Guided Acoustic Waves Enables Rheological Assessment of Sub-nanoliter Volumes. ACS NANO 2019; 13:11062-11069. [PMID: 31490647 PMCID: PMC6812326 DOI: 10.1021/acsnano.9b03219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 09/06/2019] [Indexed: 06/10/2023]
Abstract
We present a method for the computational image analysis of high frequency guided sound waves based upon the measurement of optical interference fringes, produced at the air interface of a thin film of liquid. These acoustic actuations induce an affine deformation of the liquid, creating a lensing effect that can be readily observed using a simple imaging system. We exploit this effect to measure and analyze the spatiotemporal behavior of the thin liquid film as the acoustic wave interacts with it. We also show that, by investigating the dynamics of the relaxation processes of these deformations when actuation ceases, we are able to determine the liquid's viscosity using just a lens-free imaging system and a simple disposable biochip. Contrary to all other acoustic-based techniques in rheology, our measurements do not require monitoring of the wave parameters to obtain quantitative values for fluid viscosities, for sample volumes as low as 200 pL. We envisage that the proposed methods could enable high throughput, chip-based, reagent-free rheological studies within very small samples.
Collapse
Affiliation(s)
- Muhammad
Arslan Khalid
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, United Kingdom
| | - Aniruddha Ray
- Electrical
and Computer Engineering Department, Bioengineering Department, California Nano Systems Institute (CNSI), Neuroscience, and Department of Surgery, David Geffen School
of Medicine, University of California, Los Angeles (UCLA), California, United States
| | - Steve Cohen
- Electrical
and Computer Engineering Department, Bioengineering Department, California Nano Systems Institute (CNSI), Neuroscience, and Department of Surgery, David Geffen School
of Medicine, University of California, Los Angeles (UCLA), California, United States
| | - Manlio Tassieri
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, United Kingdom
| | - Andriejus Demčenko
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, United Kingdom
| | - Derek Tseng
- Electrical
and Computer Engineering Department, Bioengineering Department, California Nano Systems Institute (CNSI), Neuroscience, and Department of Surgery, David Geffen School
of Medicine, University of California, Los Angeles (UCLA), California, United States
| | - Julien Reboud
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, United Kingdom
| | - Aydogan Ozcan
- Electrical
and Computer Engineering Department, Bioengineering Department, California Nano Systems Institute (CNSI), Neuroscience, and Department of Surgery, David Geffen School
of Medicine, University of California, Los Angeles (UCLA), California, United States
| | - Jonathan M. Cooper
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, United Kingdom
| |
Collapse
|
37
|
Zhou W, Chen M, Liu X, Zhang W, Cai F, Li F, Wu J, Wang J, Wang Y, Huang X, Lin Z, Zhou H, Meng L, Niu L, Zheng H. Selective photothermal ablation of cancer cells by patterned gold nanocages using surface acoustic waves. LAB ON A CHIP 2019; 19:3387-3396. [PMID: 31517364 DOI: 10.1039/c9lc00344d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The patterning of nanoparticles, which are promising photothermal agents, is of great importance to selectively and precisely ablate tissues by thermal effects. In this paper, we demonstrated that nano-sized gold particles (gold nanocages, AuNCS) with a hollow structure could be used to generate various wavefront patterns of surface acoustic waves (SAWs) and the aligned AuNC lines facilitated the destruction of cancer cells by the thermal effect with high spatial resolution. The hollow structure improved the acoustic sensitivity of AuNCs, making them more sensitive to the acoustic radiation force. Moreover, the multi-scale patterning of AuNCs could be achieved by the interference of multiple acoustic beams. Given the photothermal characteristics of AuNCs, selective temperature elevation within a micrometer-sized region could be realized when the patterned AuNCs were irradiated by a laser. The cancer cells where the patterned AuNCs were located were eliminated by thermal ablation, while other cells remained alive. In particular, the acoustic frequency used in this study was as low as 11. 35 MHz and was in the range of diagnostic ultrasound (less than 12 MHz), offering a potential to serve as a powerful tool in clinical applications.
Collapse
Affiliation(s)
- Wei Zhou
- Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Ahmed M, Ahmed H, Rezk AR, Yeo LY. Rapid dry exfoliation method for tuneable production of molybdenum disulphide quantum dots and large micron-dimension sheets. NANOSCALE 2019; 11:11626-11633. [PMID: 31173036 DOI: 10.1039/c9nr04255e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Despite advances in two-dimensional (2D) transition metal dichalcogenide research owing to their outstanding physical properties, the synthesis of large micron-dimension single-layer sheets of these materials remains a challenge. Here, we present a novel and unique method to rapidly and flexibly exfoliate bulk molybdenum disulphide (MoS2) into either small nanometre-dimension quantum dots (QDs) or large micron-dimension sheets comprising predominantly single- or few-layers. The exfoliation process is conducted in dry phase, i.e., without liquid, by exploiting nanometer-amplitude MHz-order surface vibrations in the form of surface acoustic waves (SAWs). To produce the small QDs, we take advantage of the unprecedentedly large surface acceleration-on the order of 108 m s-2-to induce an iterative impaction mechanism involving successive ejection and collision of the bulk MoS2 aggregates within a miniature enclosure in order to progressively thin and break their lateral dimensions into single- and few-layer QDs. In contrast, we suppress the impaction in the zero-height enclosure limit by confining the bulk MoS2 under adhesive tape such that the shear that arises due to the travelling SAW on the substrate progressively thins the material whilst preserving their lateral dimension such that large, predominantly-monolayer, micron-sized sheets are produced with high substrate coverage up to around 80%. This fast, additive-free and dry exfoliation platform potentially presents a simple yet scalable micromechanical exfoliation method towards viable commercial production of 2D transition metal dichalcogenides.
Collapse
Affiliation(s)
- Mustafa Ahmed
- Micro/Nanophysics Research Laboratory, RMIT University, Melbourne, VIC 3000, Australia.
| | | | | | | |
Collapse
|
39
|
Lin Z, Huang X, Zhou W, Zhang W, Liu Y, Bian T, Niu L, Meng L, Guo Y. Ultrasound Stimulation Modulates Voltage-Gated Potassium Currents Associated With Action Potential Shape in Hippocampal CA1 Pyramidal Neurons. Front Pharmacol 2019; 10:544. [PMID: 31178727 PMCID: PMC6538798 DOI: 10.3389/fphar.2019.00544] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 04/30/2019] [Indexed: 11/28/2022] Open
Abstract
Potassium channels (K+) play an important role in the regulation of cellular signaling. Dysfunction of potassium channels is associated with several severe ion channels diseases, such as long QT syndrome, episodic ataxia and epilepsy. Ultrasound stimulation has proven to be an effective non-invasive tool for the modulation of ion channels and neural activity. In this study, we demonstrate that ultrasound stimulation enables to modulate the potassium currents and has an impact on the shape modulation of action potentials (AP) in the hippocampal pyramidal neurons using whole-cell patch-clamp recordings in vitro. The results show that outward potassium currents in neurons increase significantly, approximately 13%, in response to 30 s ultrasound stimulation. Simultaneously, the increasing outward potassium currents directly decrease the resting membrane potential (RMP) from −64.67 ± 1.10 mV to −67.51 ± 1.35 mV. Moreover, the threshold current and AP fall rate increase while the reduction of AP half-width and after-hyperpolarization peak time is detected. During ultrasound stimulation, reduction of the membrane input resistance of pyramidal neurons can be found and shorter membrane time constant is achieved. Additionally, we verify that the regulation of potassium currents and shape of action potential is mainly due to the mechanical effects induced by ultrasound. Therefore, ultrasound stimulation may offer an alternative tool to treat some ion channels diseases related to potassium channels.
Collapse
Affiliation(s)
- Zhengrong Lin
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering - Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Xiaowei Huang
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering - Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Wei Zhou
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering - Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Wenjun Zhang
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering - Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Key Laboratory of E&M, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou, China
| | - Yingzhe Liu
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering - Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Sino-Dutch Biomedical and Information Engineering School, Northeastern University, Shenyang, China
| | - Tianyuan Bian
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering - Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Sino-Dutch Biomedical and Information Engineering School, Northeastern University, Shenyang, China
| | - Lili Niu
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering - Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Long Meng
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering - Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yanwu Guo
- The National Key Clinic Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| |
Collapse
|
40
|
Wang S, Liu K, Wang F, Peng F, Tu Y. The Application of Micro‐ and Nanomotors in Classified Drug Delivery. Chem Asian J 2019; 14:2336-2347. [DOI: 10.1002/asia.201900274] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 04/04/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Shuanghu Wang
- School of Pharmaceutical ScienceGuangdong Provincial Key Laboratory of New Drug ScreeningSouthern Medical University Guangzhou 510515 China
| | - Kun Liu
- School of Pharmaceutical ScienceGuangdong Provincial Key Laboratory of New Drug ScreeningSouthern Medical University Guangzhou 510515 China
| | - Fei Wang
- School of Pharmaceutical ScienceGuangdong Provincial Key Laboratory of New Drug ScreeningSouthern Medical University Guangzhou 510515 China
| | - Fei Peng
- School of Materials Science and EngineeringSun Yat-sen University Guangzhou 510275 China
| | - Yingfeng Tu
- School of Pharmaceutical ScienceGuangdong Provincial Key Laboratory of New Drug ScreeningSouthern Medical University Guangzhou 510515 China
| |
Collapse
|
41
|
Xu T, Cheng G, Liu C, Li T, Zhang X. Dynamic Assembly of Microspheres under an Ultrasound Field. Chem Asian J 2019; 14:2440-2444. [DOI: 10.1002/asia.201900066] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/15/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Tailin Xu
- Research Center for Biomedical and Health ScienceAnhui Science and Technology University Fengyang 233100 China
- Research Center for Bioengineering and Sensing TechnologyUniversity of Science and Technology Beijing Beijing 100083 China
| | - Guanzhi Cheng
- Department Institute of railway constructionInstitution China Academy of Railway Sciences Co., Ltd Beijing 100081 China
| | - Conghui Liu
- Research Center for Bioengineering and Sensing TechnologyUniversity of Science and Technology Beijing Beijing 100083 China
| | - Tianlong Li
- State Key Laboratory of Robotics and SystemHarbin Institute of Technology Harbin Heilongjiang 150001 China
| | - Xueji Zhang
- Research Center for Biomedical and Health ScienceAnhui Science and Technology University Fengyang 233100 China
- Research Center for Bioengineering and Sensing TechnologyUniversity of Science and Technology Beijing Beijing 100083 China
| |
Collapse
|
42
|
Jiang T, Tao Y, Jiang H, Liu W, Hu Y, Tang D. An Experimental Study of 3D Electrode-Facilitated Particle Traffic Flow-Focusing Driven by Induced-Charge Electroosmosis. MICROMACHINES 2019; 10:E135. [PMID: 30781666 PMCID: PMC6412237 DOI: 10.3390/mi10020135] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/12/2019] [Accepted: 02/15/2019] [Indexed: 02/05/2023]
Abstract
In this paper we present a novel microfluidic approach for continuous, rapid and switchable particle concentration, using induced-charge electroosmosis (ICEO) in 3D electrode layouts. Field-effect control on non-linear electroosmosis in the transverse direction greatly facilitates a selective concentration of biological yeast cells from a straight main microchannel into one of the three downstream branch channels in our microfluidic device. For the geometry configuration of 3D driving electrode plates on sidewalls and a 2D planar gate electrode strip on the channel bottom surface, we briefly describe the underlying physics of an ICEO-based particle flow-focusing method, and provide relevant simulation results to show how gate voltage amplitude can be used to guide the motion trajectory of the concentrated particle stream. With a relatively simple geometrical configuration, the proposed microfluidic device provides new possibilities to controllably concentrate micro/nanoparticles in continuous flow by using ICEO, and is suitable for a high-throughput front-end cell concentrator interfacing with various downstream biosensors.
Collapse
Affiliation(s)
- Tianyi Jiang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China.
| | - Ye Tao
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China.
| | - Hongyuan Jiang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China.
| | - Weiyu Liu
- School of Electronics and Control Engineering, Chang'an University, Xi'an 710064, China.
| | - Yansu Hu
- School of Electronics and Control Engineering, Chang'an University, Xi'an 710064, China.
| | - Dewei Tang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China.
| |
Collapse
|
43
|
Directed assembly of nanoparticles into continuous microstructures by standing surface acoustic waves. J Colloid Interface Sci 2019; 536:701-709. [DOI: 10.1016/j.jcis.2018.10.100] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 10/27/2018] [Accepted: 10/29/2018] [Indexed: 12/21/2022]
|
44
|
Liu L, Chen K, Xiang N, Ni Z. Dielectrophoretic manipulation of nanomaterials: A review. Electrophoresis 2018; 40:873-889. [DOI: 10.1002/elps.201800342] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/26/2018] [Accepted: 09/30/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Linbo Liu
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments; Southeast University; Nanjing P. R. China
| | - Ke Chen
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments; Southeast University; Nanjing P. R. China
| | - Nan Xiang
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments; Southeast University; Nanjing P. R. China
| | - Zhonghua Ni
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments; Southeast University; Nanjing P. R. China
| |
Collapse
|
45
|
Maloney RC, Hall CK. Phase diagrams of mixtures of dipolar rods and discs. SOFT MATTER 2018; 14:7894-7905. [PMID: 30230508 DOI: 10.1039/c8sm01225c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Self-assembly of binary mixtures that contain anisotropic, interacting colloidal particles have been proposed as a way to create new, multi-functional materials. We simulate binary mixtures of dipolar rods and dipolar discs in two-dimensions using discontinuous molecular dynamics to determine how the assembled structures of these mixtures differ from those seen in single component systems. Two different binary mixtures are investigated: a mixture of an equal number of dipolar rods and dipolar discs ("equal number"), and a mixture where the area fraction of dipolar rods is equal to the area fraction of dipolar discs ("equal area"). Phase boundaries between fluid, string-fluid, and "gel" phases are calculated and compared to the phase boundaries of the pure components. Looking deeper at the underlying structure of the mixture reveals a complex interplay between the rods and discs and the formation of states where the two components are in different phases. The mixtures exhibit phases where both rods and discs are in the fluid phase, where rods form a string-fluid while discs remain in the fluid phase, a rod string-fluid coexisting with a disc string-fluid, a "gel" that consists primarily of rods while the discs form either a fluid or string-fluid phase, and a "gel" that contains both rods and discs. Our results give insight into the general assembly pathway of binary mixtures, and how complex aggregates can be created by varying the mixture composition, strength of interaction between the two components, and the temperature. By manipulating the properties of one of the components it should be possible to fabricate bifunctional, thermally responsive self-assembled materials.
Collapse
Affiliation(s)
- Ryan C Maloney
- Department of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, USA.
| | | |
Collapse
|
46
|
Ren L, Wang W, Mallouk TE. Two Forces Are Better than One: Combining Chemical and Acoustic Propulsion for Enhanced Micromotor Functionality. Acc Chem Res 2018; 51:1948-1956. [PMID: 30079719 DOI: 10.1021/acs.accounts.8b00248] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Engines and motors are everywhere in the modern world, but it is a challenge to make them work if they are very small. On the micron length scale, inertial forces are weak and conventional motor designs involving, e.g., pistons, jets, or flywheels cease to function. Biological motors work by a different principle, using catalysis to convert chemical to mechanical energy on the nanometer length scale. To do this, they must apply force continuously against their viscous surroundings, and because of their small size, their movement is "jittery" because of the random shoves and turns they experience from molecules in their surroundings. The first synthetic catalytic motors, discovered about 15 years ago, were bimetallic Pt-Au microrods that swim in fluids through self-electrophoresis, a mechanism that is apparently not used by biological catalytic nanomotors. Despite the difference in propulsion mechanisms, catalytic microswimmers are subject to the same external forces as natural swimmers such as bacteria. Therefore, they follow similar scaling laws, are subject to Brownian forces, and exhibit a rich array of biomimetic emergent behavior (e.g., chemotaxis, rheotaxis, schooling, and predator-prey behavior). It was later discovered, quite by accident, that the same metallic microrods undergo rapid autonomous movement in acoustic fields, converting excitation energy in the frequency (MHz) and power range (up to several W/cm2) that is commonly used for ultrasonic imaging into axial movement. Because the acoustic propulsion mechanism is fuel-free, it can operate in media that have been inaccessible to chemically powered motors, such as the interior of living cells. The power levels used are intermediate between those of ultrasonic diagnostic imaging and therapy, so the translation of basic research on microswimmers into biomedical applications, including in vivo diagnostics and drug delivery, is possible. Acoustic and chemical propulsion are applied independently to microswimmers, so by modulating the acoustic power one can achieve microswimmer functionalities that are not accessible with the individual propulsion mechanisms. These include motion of particles forward and backward with switching between chemical and acoustic propulsion, the assembly/disassembly equilibrium of particle swarms and colloidal molecules, and controllable upstream or downstream propulsion in a flowing fluid. This Account relates our current understanding of the chemical and acoustic propulsion mechanisms, and describes how their combination can be particularly powerful for imparting enhanced functionality to micromotors.
Collapse
Affiliation(s)
- Liqiang Ren
- Department of Chemistry, Biochemistry and Molecular Biology, Physics, and Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Wei Wang
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, China
| | - Thomas E. Mallouk
- Department of Chemistry, Biochemistry and Molecular Biology, Physics, and Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| |
Collapse
|
47
|
Connacher W, Zhang N, Huang A, Mei J, Zhang S, Gopesh T, Friend J. Micro/nano acoustofluidics: materials, phenomena, design, devices, and applications. LAB ON A CHIP 2018; 18:1952-1996. [PMID: 29922774 DOI: 10.1039/c8lc00112j] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Acoustic actuation of fluids at small scales may finally enable a comprehensive lab-on-a-chip revolution in microfluidics, overcoming long-standing difficulties in fluid and particle manipulation on-chip. In this comprehensive review, we examine the fundamentals of piezoelectricity, piezoelectric materials, and transducers; revisit the basics of acoustofluidics; and give the reader a detailed look at recent technological advances and current scientific discussions in the discipline. Recent achievements are placed in the context of classic reports for the actuation of fluid and particles via acoustic waves, both within sessile drops and closed channels. Other aspects of micro/nano acoustofluidics are examined: atomization, translation, mixing, jetting, and particle manipulation in the context of sessile drops and fluid mixing and pumping, particle manipulation, and formation of droplets in the context of closed channels, plus the most recent results at the nanoscale. These achievements will enable applications across the disciplines of chemistry, biology, medicine, energy, manufacturing, and we suspect a number of others yet unimagined. Basic design concepts and illustrative applications are highlighted in each section, with an emphasis on lab-on-a-chip applications.
Collapse
Affiliation(s)
- William Connacher
- Medically Advanced Devices Laboratory, Center for Medical Devices and Instrumentation, Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, CA 92093-0411, USA.
| | | | | | | | | | | | | |
Collapse
|
48
|
Nichols MK, Kumar RK, Bassindale PG, Tian L, Barnes AC, Drinkwater BW, Patil AJ, Mann S. Fabrication of Micropatterned Dipeptide Hydrogels by Acoustic Trapping of Stimulus-Responsive Coacervate Droplets. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800739. [PMID: 29806157 DOI: 10.1002/smll.201800739] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/06/2018] [Indexed: 06/08/2023]
Abstract
Acoustic standing waves offer an excellent opportunity to trap and spatially manipulate colloidal objects. This noncontact technique is used for the in situ formation and patterning in aqueous solution of 1D or 2D arrays of pH-responsive coacervate microdroplets comprising poly(diallyldimethylammonium) chloride and the dipeptide N-fluorenyl-9-methoxy-carbonyl-D-alanine-D-alanine. Decreasing the pH of the preformed droplet arrays results in dipeptide nanofilament self-assembly and subsequent formation of a micropatterned supramolecular hydrogel that can be removed as a self-supporting monolith. Guest molecules such as molecular dyes, proteins, and oligonucleotides are sequestered specifically within the coacervate droplets during acoustic processing to produce micropatterned hydrogels containing spatially organized functional components. Using this strategy, the site-specific isolation of multiple enzymes to drive a catalytic cascade within the micropatterned hydrogel films is exploited.
Collapse
Affiliation(s)
- Madeleine K Nichols
- Centre for Organized Matter Chemistry and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
- Bristol Centre for Functional Nanomaterials, HH Wills Physics Laboratory, Tyndall Avenue, Bristol, BS8 1TL, UK
| | - Ravinash Krishna Kumar
- Centre for Organized Matter Chemistry and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Philip G Bassindale
- Bristol Centre for Functional Nanomaterials, HH Wills Physics Laboratory, Tyndall Avenue, Bristol, BS8 1TL, UK
| | - Liangfei Tian
- Centre for Organized Matter Chemistry and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Adrian C Barnes
- School of Physics, H H Wills Physics Laboratory, University of Bristol, Bristol, BS8 1TL, UK
| | - Bruce W Drinkwater
- Department of Mechanical Engineering, University of Bristol, Bristol, BS8 1TR, UK
| | - Avinash J Patil
- Centre for Organized Matter Chemistry and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Stephen Mann
- Centre for Organized Matter Chemistry and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| |
Collapse
|
49
|
Huang PH, Chan CY, Li P, Wang Y, Nama N, Bachman H, Huang TJ. A sharp-edge-based acoustofluidic chemical signal generator. LAB ON A CHIP 2018; 18:1411-1421. [PMID: 29668002 PMCID: PMC6064650 DOI: 10.1039/c8lc00193f] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Resolving the temporal dynamics of cell signaling pathways is essential for regulating numerous downstream functions, from gene expression to cellular responses. Mapping these signaling pathways requires the exposure of cells to time-varying chemical signals; these are difficult to generate and control over a wide temporal range. Herein, we present an acoustofluidic chemical signal generator based on a sharp-edge-based micromixing strategy. The device, simply by modulating the driving signals of an acoustic transducer including the ON/OFF switching frequency, actuation time and duty cycle, is capable of generating both single-pulse and periodic chemical signals that are temporally controllable in terms of stimulation period, stimulation duration and duty cycle. We also demonstrate the device's applicability and versatility for cell signaling studies by probing the calcium (Ca2+) release dynamics of three different types of cells stimulated by ionomycin signals of different shapes. Upon short single-pulse ionomycin stimulation (∼100 ms) generated by our device, we discover that cells tend to dynamically adjust the intracellular level of Ca2+ through constantly releasing and accepting Ca2+ to the cytoplasm and from the extracellular environment, respectively. With advantages such as simple fabrication and operation, compact device design, and reliability and versatility, our device will enable decoding of the temporal characteristics of signaling dynamics for various physiological processes.
Collapse
Affiliation(s)
- Po-Hsun Huang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA.
| | | | | | | | | | | | | |
Collapse
|
50
|
Liang S, Chaohui W. Revised model for the radiation force exerted by standing surface acoustic waves on a rigid cylinder. Phys Rev E 2018; 97:033103. [PMID: 29776072 DOI: 10.1103/physreve.97.033103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Indexed: 06/08/2023]
Abstract
In this paper, a model for the radiation force exerted by standing surface acoustic waves (SSAWs) on a rigid cylinder in inviscid fluids is extended to account for the dependence on the Rayleigh angle. The conventional model for the radiation force used in the SSAW-based applications is developed in plane standing waves, which fails to predict the movement of the cylinder in the SSAW. Our revised model reveals that, in the direction normal to the piezoelectric substrate on which the SSAW is generated, acoustic radiation force can be large enough to drive the cylinder even in the long-wavelength limit. Furthermore, the force in this direction can not only push the cylinder away, but also pull it back toward the substrate. In the direction parallel to the substrate, the equilibrium positions for particles can be actively tuned by changing Rayleigh angle. As an example considered in the paper, with the reduction of Rayleigh angle the equilibrium positions for steel cylinders in water change from pressure nodes to pressure antinodes. The model can thus be used in the design of SSAWs for particle manipulations.
Collapse
Affiliation(s)
- Shen Liang
- State Key Laboratory of Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China and Shaanxi Key Laboratory of Intelligent Robots, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Wang Chaohui
- State Key Laboratory of Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China and Shaanxi Key Laboratory of Intelligent Robots, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| |
Collapse
|