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Xu X, Zhang Z, Shen T, Pan H, Chang D. Visual dual-mode aptasensor for non-small cell lung cancer exosome detection via HRP self-coupling enhanced oxidized iridium nanoparticle aggregation. ANAL SCI 2024:10.1007/s44211-024-00582-y. [PMID: 38900232 DOI: 10.1007/s44211-024-00582-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 04/15/2024] [Indexed: 06/21/2024]
Abstract
The main reason for the high mortality rate of non-small cell lung cancer is that patients are usually diagnosed at an advanced stage of the disease. Exosomes, small membrane vesicles secreted by normal cells or tumor cells, play a significant role in the progression of NSCLC. This study successfully optimized the preparation of artificial nanoenzymes self-coupling with horseradish peroxidase (IrO2NPs@HRP-AptCD63), without adding any ligand, demonstrating remarkable catalytic activity suitable for detecting the EGFR protein on the surface of NSCLC exosomes. When fused with the CD63 aptamer for identifying NSCLC exosomes, IrO2NPs@HRP showed enhanced catalytic activity in the 3,3',5,5'-tetramethylbenzidine-H2O2 oxidation-reduction system, thereby enhancing the colorimetric signal. This phenomenon can be distinguished by the naked eye and quantified using a UV-Vis spectrophotometer. Meanwhile, as the redox reaction occurs, the current signal of 3,3',5,5'-tetramethylbenzidine-H2O2, acting as an electrolyte, changes. The developed aptasensor generates dual-mode signal outputs, firstly, to visually assess the samples for their positive or negative status, and subsequently employ more in-depth electrochemical or colorimetric analysis methods for a detailed quantitative analysis of suspected positive samples. The detection limits of electrochemical analysis and colorimetric analysis were 0.9 × 103 particles/mL and 0.14 × 103 particles/mL, respectively. Compared with traditional biomarkers such as CA125, this method exhibits exceptional specificity, capable of simultaneously distinguishing serum exosomes of healthy volunteers, COPD patients, and NSCLC patients, promoting exosome detection in mouse models for tumor monitoring. Additionally, it elucidates the changes in EGFR protein expression on the surface of serum exosomes throughout the developmental trajectory.
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Affiliation(s)
- Xin Xu
- Department of Clinical Laboratory, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
| | - Ze Zhang
- Department of Clinical Laboratory, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
| | - Tong Shen
- Department of Clinical Laboratory, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
- Hebei Medical University, Hebei, 050011, China
| | - Hongzhi Pan
- Collaborative Research Center, Shanghai University of Medicine and Health Sciences, Shanghai, 201399, China.
| | - Dong Chang
- Department of Clinical Laboratory, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China.
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2
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Yasamineh S, Nikben N, Hamed Ahmed M, Abdul Kareem R, Kadhim Al-Aridhy A, Hosseini Hooshiar M. Increasing the sensitivity and accuracy of detecting exosomes as biomarkers for cancer monitoring using optical nanobiosensors. Cancer Cell Int 2024; 24:189. [PMID: 38816782 PMCID: PMC11138050 DOI: 10.1186/s12935-024-03379-1] [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: 12/23/2023] [Accepted: 05/19/2024] [Indexed: 06/01/2024] Open
Abstract
The advancement of nanoscience and material design in recent times has facilitated the creation of point-of-care devices for cancer diagnosis and biomolecule sensing. Exosomes (EXOs) facilitate the transfer of bioactive molecules between cancer cells and diverse cells in the local and distant microenvironments, thereby contributing to cancer progression and metastasis. Specifically, EXOs derived from cancer are likely to function as biomarkers for early cancer detection due to the genetic or signaling alterations they transport as payload within the cancer cells of origin. It has been verified that EXOs circulate steadily in bodily secretions and contain a variety of information that indicates the progression of the tumor. However, acquiring molecular information and interactions regarding EXOs has presented significant technical challenges due to their nanoscale nature and high heterogeneity. Colorimetry, surface plasmon resonance (SPR), fluorescence, and Raman scattering are examples of optical techniques utilized to quantify cancer exosomal biomarkers, including lipids, proteins, RNA, and DNA. Many optically active nanoparticles (NPs), predominantly carbon-based, inorganic, organic, and composite-based nanomaterials, have been employed in biosensing technology. The exceptional physical properties exhibited by nanomaterials, including carbon NPs, noble metal NPs, and magnetic NPs, have facilitated significant progress in the development of optical nanobiosensors intended for the detection of EXOs originating from tumors. Following a summary of the biogenesis, biological functions, and biomarker value of known EXOs, this article provides an update on the detection methodologies currently under investigation. In conclusion, we propose some potential enhancements to optical biosensors utilized in detecting EXO, utilizing various NP materials such as silicon NPs, graphene oxide (GO), metal NPs, and quantum dots (QDs).
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Affiliation(s)
- Saman Yasamineh
- Young Researchers and Elite Club, Tabriz Branch, Islamic Azad University, Tabriz, Iran.
| | | | | | | | - Ameer Kadhim Al-Aridhy
- College of Health and Medical Technology, National University of Science and Technology, Dhi Qar, 64001, Iraq
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3
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Shen J, Ma Z, Xu J, Xue T, Lv X, Zhu G, Huang B. Exosome Isolation and Detection: From Microfluidic Chips to Nanoplasmonic Biosensor. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38676635 DOI: 10.1021/acsami.3c19396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/29/2024]
Abstract
Exosomes are becoming more widely acknowledged as significant circulating indicators for the prognosis and diagnosis of cancer. Circulating exosomes are essential to the development and spread of cancer, according to a growing body of research. Using existing technology, characterizing exosomes is quite difficult. Therefore, a direct, sensitive, and targeted approach to exosome detection will aid in illness diagnosis and prognosis. The review discusses the new strategies for exosome isolation and detection technologies from microfluidic chips to nanoplasmonic biosensors, analyzing the advantages and limitations of these new technologies. This review serves researchers to better understand exosome isolation and detection methods and to help develop better exosome isolating and detecting devices for clinical applications.
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Affiliation(s)
- Jianing Shen
- School of Instrument Science and Optoelectronic Engineering, Beijing Information Science and Technology University, Beijing 100192, China
| | - Zhengtai Ma
- Key Laboratory of Optoelectronic Materials and Devices, Chinese Academy of Sciences, Beijing 100083, China
- College of Materials Science and Optoelectronic Technology, University of Chinese, Academy of Sciences, Beijing 100049, China
| | - Jiaqi Xu
- School of Instrument Science and Optoelectronic Engineering, Beijing Information Science and Technology University, Beijing 100192, China
| | - Tianhao Xue
- School of Instrument Science and Optoelectronic Engineering, Beijing Information Science and Technology University, Beijing 100192, China
| | - Xiaoqing Lv
- Key Laboratory of Optoelectronic Materials and Devices, Chinese Academy of Sciences, Beijing 100083, China
| | - Guixian Zhu
- School of Instrument Science and Optoelectronic Engineering, Beijing Information Science and Technology University, Beijing 100192, China
| | - Beiju Huang
- Key Laboratory of Optoelectronic Materials and Devices, Chinese Academy of Sciences, Beijing 100083, China
- College of Materials Science and Optoelectronic Technology, University of Chinese, Academy of Sciences, Beijing 100049, China
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4
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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.
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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
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Pelenis D, Barauskas D, Dzikaras M, Viržonis D. Four-Channel Ultrasonic Sensor for Bulk Liquid and Biochemical Surface Interrogation. BIOSENSORS 2024; 14:66. [PMID: 38391985 PMCID: PMC10887170 DOI: 10.3390/bios14020066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 02/24/2024]
Abstract
Custom electronics tailored for ultrasonic applications with four ultrasonic transmit-receive channels and a nominal 25 MHz single channel frequency were developed for ultrasound BAW and SAW biosensor uses. The designed integrated microcontroller, supported by Python with a SciPy library, and the developed system measured the time of flight (TOF) and other wave properties to characterize the acoustic properties of a bulk of the liquid in a microchannel or acoustic properties of biological species attached to an analytic surface in real time. The system can utilize both piezoelectric and capacitive micromachined ultrasound transducers. The device demonstrated a linear response to changes in water salinity. This response was primarily attributed to the time-of-flight (TOF) changes related to the varying solution density. Furthermore, real-time DNA oligonucleotide-based interactions between oligonucleotides immobilized on the device's analytical area and oligonucleotides attached to gold nanoparticles (Au NPs) in the solution were demonstrated. The biological interaction led to an exponential decrease in the acoustic interfacial wave propagating across the interface between the solution and the solid surface of the sensor, the TOF signal. This decrease was attributed to the increase in the effective density of the solution in the vicinity of the sensor's analytical area, as Au NPs modified by oligonucleotides were binding to the analytical area. The utilization of Au NPs in oligonucleotide surface binding yields a considerably stronger sensor signal than previously observed in earlier CMUT-based TOF biosensor prototypes.
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Affiliation(s)
| | | | | | - Darius Viržonis
- Panevėžys Faculty of Technology and Business, Kaunas University of Technology, 37164 Panevėžys, Lithuania; (D.P.); (D.B.); (M.D.)
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Grabka M, Jasek K, Witkiewicz Z. Surface Acoustic Wave Immunosensor for Detection of Botulinum Neurotoxin. SENSORS (BASEL, SWITZERLAND) 2023; 23:7688. [PMID: 37765744 PMCID: PMC10534944 DOI: 10.3390/s23187688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/03/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023]
Abstract
A Love-type acoustic wave sensor (AT-cut quartz substrate, SiO2 guiding layer) with a center frequency of approximately 120 MHz was used to detect a simulant of pathogenic botulinum neurotoxin type A-recombinant of BoNT-A light chain-in liquid samples. The sensor was prepared by immobilizing monoclonal antibodies specific for botulinum neurotoxin via a thiol monolayer deposited on a gold substrate. Studies have shown that the sensor enables selective analyte detection within a few minutes. In addition, the sensor can be used several times (regeneration of the sensor is possible using a low pH buffer). Nevertheless, the detectability of the analyte is relatively low compared to other analytical techniques that can be used for rapid detection of botulinum neurotoxin. The obtained results confirm the operation of the proposed sensor and give hope for further development of this label-free technique for detecting botulinum neurotoxin.
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Affiliation(s)
- Michał Grabka
- Institute of Chemistry, Faculty of Advanced Technologies and Chemistry, Military University of Technology, 00-908 Warsaw, Poland; (K.J.); (Z.W.)
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Li L, Zhou M, Huang L, Jiang B. Finite Element Study for Mass Sensitivity of Love Surface Acoustic Wave Sensor with Si 3N 4-SiO 2 Double-Covered Waveguiding Layer. MICROMACHINES 2023; 14:1696. [PMID: 37763859 PMCID: PMC10537863 DOI: 10.3390/mi14091696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/24/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023]
Abstract
Love surface acoustic wave (L-SAW) sensors are miniaturized, easy to integrate, and suitable for detection in liquid environments. In this paper, an L-SAW sensor with a thin Si3N4-SiO2 double-covered layer was proposed for samples with small mass loads. The output response, phase velocity of the acoustic wave, and the mass sensitivity were analyzed using the finite element method (FEM). The simulation results show that the Si3N4 layer with high wave velocity greatly weakens the limitation of SiO2 on the phase velocity. The phase velocity can reach about 4300 m/s, which can increase the frequency shift when the same mass load is applied. Within a certain range, the mass sensitivity of the sensor is enhanced with the increase in the total thickness of the waveguiding layer and the thickness ratio of Si3N4 in the double-covered layer. When the thickness ratio is 1:2, the peak value of the mass sensitivity of the sensor is approximately 50% higher than that achieved with only the SiO2 waveguiding layer. The surface average stress of the delay line region follows the same trend as the mass sensitivity. The increase in mass sensitivity is the result of the heightened stress on the sensor surface. This L-SAW sensor, featuring a double-covered waveguiding layer, demonstrates high sensitivity and a simple structure. The simulation results lay a foundation for the design and manufacture of SAW sensors.
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Affiliation(s)
- Luming Li
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University, Changsha 410083, China
- College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
| | - Mingyong Zhou
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University, Changsha 410083, China
- College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
| | - Lei Huang
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University, Changsha 410083, China
- College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
| | - Bingyan Jiang
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University, Changsha 410083, China
- College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
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8
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Sonbhadra S, Mehak, Pandey LM. Biogenesis, Isolation, and Detection of Exosomes and Their Potential in Therapeutics and Diagnostics. BIOSENSORS 2023; 13:802. [PMID: 37622888 PMCID: PMC10452587 DOI: 10.3390/bios13080802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/01/2023] [Accepted: 08/05/2023] [Indexed: 08/26/2023]
Abstract
The increasing research and rapid developments in the field of exosomes provide insights into their role and significance in human health. Exosomes derived from various sources, such as mesenchymal stem cells, cardiac cells, and tumor cells, to name a few, can be potential therapeutic agents for the treatment of diseases and could also serve as biomarkers for the early detection of diseases. Cellular components of exosomes, several proteins, lipids, and miRNAs hold promise as novel biomarkers for the detection of various diseases. The structure of exosomes enables them as drug delivery vehicles. Since exosomes exhibit potential therapeutic applications, their efficient isolation from complex biological/clinical samples and precise real-time analysis becomes significant. With the advent of microfluidics, nano-biosensors are being designed to capture exosomes efficiently and rapidly. Herein, we have summarized the history, biogenesis, characteristics, functions, and applications of exosomes, along with the isolation, detection, and quantification techniques. The implications of surface modifications to enhance specificity have been outlined. The review also sheds light on the engineered nanoplatforms being developed for exosome detection and capture.
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Affiliation(s)
| | | | - Lalit M. Pandey
- Bio-Interface & Environmental Engineering Lab, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India; (S.S.); (M.)
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9
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Cheng CH, Yatsuda H, Goto M, Kondoh J, Liu SH, Wang RYL. Application of Shear Horizontal Surface Acoustic Wave (SH-SAW) Immunosensor in Point-of-Care Diagnosis. BIOSENSORS 2023; 13:605. [PMID: 37366970 DOI: 10.3390/bios13060605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/25/2023] [Accepted: 05/30/2023] [Indexed: 06/28/2023]
Abstract
Point-of-care testing (POCT), also known as on-site or near-patient testing, has been exploding in the last 20 years. A favorable POCT device requires minimal sample handling (e.g., finger-prick samples, but plasma for analysis), minimal sample volume (e.g., one drop of blood), and very fast results. Shear horizontal surface acoustic wave (SH-SAW) biosensors have attracted a lot of attention as one of the effective solutions to complete whole blood measurements in less than 3 min, while providing a low-cost and small-sized device. This review provides an overview of the SH-SAW biosensor system that has been successfully commercialized for medical use. Three unique features of the system are a disposable test cartridge with an SH-SAW sensor chip, a mass-produced bio-coating, and a palm-sized reader. This paper first discusses the characteristics and performance of the SH-SAW sensor system. Subsequently, the method of cross-linking biomaterials and the analysis of SH-SAW real-time signals are investigated, and the detection range and detection limit are presented.
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Affiliation(s)
- Chia-Hsuan Cheng
- Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu-shi 432-8561, Japan
- tst Biomedical Electronics Co., Ltd., Taoyuan 324403, Taiwan
| | - Hiromi Yatsuda
- Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu-shi 432-8561, Japan
- tst Biomedical Electronics Co., Ltd., Taoyuan 324403, Taiwan
| | | | - Jun Kondoh
- Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu-shi 432-8561, Japan
| | - Szu-Heng Liu
- tst Biomedical Electronics Co., Ltd., Taoyuan 324403, Taiwan
| | - Robert Y L Wang
- Biotechnology Industry Ph.D. Program, Chang Gung University, Taoyuan 33302, Taiwan
- Kidney Research Center and Department of Nephrology, Chang Gung Memorial Hospital, Linkou 33305, Taiwan
- Department of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
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Roh I, Goh SH, Meng Y, Kim JS, Han S, Xu Z, Lee HE, Kim Y, Bae SH. Applications of remote epitaxy and van der Waals epitaxy. NANO CONVERGENCE 2023; 10:20. [PMID: 37120780 PMCID: PMC10149550 DOI: 10.1186/s40580-023-00369-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 04/09/2023] [Indexed: 05/03/2023]
Abstract
Epitaxy technology produces high-quality material building blocks that underpin various fields of applications. However, fundamental limitations exist for conventional epitaxy, such as the lattice matching constraints that have greatly narrowed down the choices of available epitaxial material combinations. Recent emerging epitaxy techniques such as remote and van der Waals epitaxy have shown exciting perspectives to overcome these limitations and provide freestanding nanomembranes for massive novel applications. Here, we review the mechanism and fundamentals for van der Waals and remote epitaxy to produce freestanding nanomembranes. Key benefits that are exclusive to these two growth strategies are comprehensively summarized. A number of original applications have also been discussed, highlighting the advantages of these freestanding films-based designs. Finally, we discuss the current limitations with possible solutions and potential future directions towards nanomembranes-based advanced heterogeneous integration.
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Affiliation(s)
- Ilpyo Roh
- Mechanical Engineering & Materials Science, Washington University in St. Louis, Saint Louis, MO, 63105, USA
- R&D CENTER, M.O.P Co., Ltd, Seoul, 07281, South Korea
| | - Seok Hyeon Goh
- Division of Advanced Materials Engineering, Jeonbuk National University, Jeonju, 54896, South Korea
| | - Yuan Meng
- Mechanical Engineering & Materials Science, Washington University in St. Louis, Saint Louis, MO, 63105, USA
| | - Justin S Kim
- The Institution of Materials Science & Engineering, Washington University in St. Louis, Saint Louis, MO, 63130, USA
| | - Sangmoon Han
- Mechanical Engineering & Materials Science, Washington University in St. Louis, Saint Louis, MO, 63105, USA
| | - Zhihao Xu
- The Institution of Materials Science & Engineering, Washington University in St. Louis, Saint Louis, MO, 63130, USA
| | - Han Eol Lee
- Division of Advanced Materials Engineering, Jeonbuk National University, Jeonju, 54896, South Korea.
| | - Yeongin Kim
- Department of Electrical and Computer Engineering, University of Cincinnati, Cincinnati, OH, 45221, USA.
| | - Sang-Hoon Bae
- Mechanical Engineering & Materials Science, Washington University in St. Louis, Saint Louis, MO, 63105, USA.
- The Institution of Materials Science & Engineering, Washington University in St. Louis, Saint Louis, MO, 63130, USA.
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Kara N, Ayoub N, Ilgu H, Fotiadis D, Ilgu M. Aptamers Targeting Membrane Proteins for Sensor and Diagnostic Applications. Molecules 2023; 28:molecules28093728. [PMID: 37175137 PMCID: PMC10180177 DOI: 10.3390/molecules28093728] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/07/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023] Open
Abstract
Many biological processes (physiological or pathological) are relevant to membrane proteins (MPs), which account for almost 30% of the total of human proteins. As such, MPs can serve as predictive molecular biomarkers for disease diagnosis and prognosis. Indeed, cell surface MPs are an important class of attractive targets of the currently prescribed therapeutic drugs and diagnostic molecules used in disease detection. The oligonucleotides known as aptamers can be selected against a particular target with high affinity and selectivity by iterative rounds of in vitro library evolution, known as Systematic Evolution of Ligands by EXponential Enrichment (SELEX). As an alternative to antibodies, aptamers offer unique features like thermal stability, low-cost, reuse, ease of chemical modification, and compatibility with various detection techniques. Particularly, immobilized-aptamer sensing platforms have been under investigation for diagnostics and have demonstrated significant value compared to other analytical techniques. These "aptasensors" can be classified into several types based on their working principle, which are commonly electrochemical, optical, or mass-sensitive. In this review, we review the studies on aptamer-based MP-sensing technologies for diagnostic applications and have included new methodological variations undertaken in recent years.
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Affiliation(s)
- Nilufer Kara
- Department of Biological Sciences, Middle East Technical University, Ankara 06800, Turkey
| | - Nooraldeen Ayoub
- Department of Biological Sciences, Middle East Technical University, Ankara 06800, Turkey
- Institute of Biochemistry and Molecular Medicine, University of Bern, CH-3012 Bern, Switzerland
| | - Huseyin Ilgu
- Institute of Biochemistry and Molecular Medicine, University of Bern, CH-3012 Bern, Switzerland
| | - Dimitrios Fotiadis
- Institute of Biochemistry and Molecular Medicine, University of Bern, CH-3012 Bern, Switzerland
| | - Muslum Ilgu
- Department of Biological Sciences, Middle East Technical University, Ankara 06800, Turkey
- Roy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, IA 50011, USA
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA 50011, USA
- Aptalogic Inc., Ames, IA 50014, USA
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12
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Rasouli R, Villegas KM, Tabrizian M. Acoustofluidics - changing paradigm in tissue engineering, therapeutics development, and biosensing. LAB ON A CHIP 2023; 23:1300-1338. [PMID: 36806847 DOI: 10.1039/d2lc00439a] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
For more than 70 years, acoustic waves have been used to screen, diagnose, and treat patients in hundreds of medical devices. The biocompatible nature of acoustic waves, their non-invasive and contactless operation, and their compatibility with wide visualization techniques are just a few of the many features that lead to the clinical success of sound-powered devices. The development of microelectromechanical systems and fabrication technologies in the past two decades reignited the spark of acoustics in the discovery of unique microscale bio applications. Acoustofluidics, the combination of acoustic waves and fluid mechanics in the nano and micro-realm, allowed researchers to access high-resolution and controllable manipulation and sensing tools for particle separation, isolation and enrichment, patterning of cells and bioparticles, fluid handling, and point of care biosensing strategies. This versatility and attractiveness of acoustofluidics have led to the rapid expansion of platforms and methods, making it also challenging for users to select the best acoustic technology. Depending on the setup, acoustic devices can offer a diverse level of biocompatibility, throughput, versatility, and sensitivity, where each of these considerations can become the design priority based on the application. In this paper, we aim to overview the recent advancements of acoustofluidics in the multifaceted fields of regenerative medicine, therapeutic development, and diagnosis and provide researchers with the necessary information needed to choose the best-suited acoustic technology for their application. Moreover, the effect of acoustofluidic systems on phenotypic behavior of living organisms are investigated. The review starts with a brief explanation of acoustofluidic principles, the different working mechanisms, and the advantages or challenges of commonly used platforms based on the state-of-the-art design features of acoustofluidic technologies. Finally, we present an outlook of potential trends, the areas to be explored, and the challenges that need to be overcome in developing acoustofluidic platforms that can echo the clinical success of conventional ultrasound-based devices.
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Affiliation(s)
- Reza Rasouli
- Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.
| | - Karina Martinez Villegas
- Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.
| | - Maryam Tabrizian
- Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Quebec, Canada
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Baumgartner K, Westerhausen C. Recent advances of surface acoustic wave-based sensors for noninvasive cell analysis. Curr Opin Biotechnol 2023; 79:102879. [PMID: 36634534 DOI: 10.1016/j.copbio.2022.102879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/02/2022] [Accepted: 12/06/2022] [Indexed: 01/12/2023]
Abstract
In the past years, the application of surface acoustic waves (SAWs) as sensors for biological applications has reached high relevance in the field of biotechnology. From rapid advances in designs and materials, new opportunities have emerged, especially for sensing of living cells. Additionally, the combination of SAW sensors with microfluidics and optical microscopy has expanded the market of possible applications. Differentiation of infected and healthy red blood cells or aggressive and nonaggressive tumor cells, and monitoring of wound healing, bacteria, or viral antigen concentrations via SAW-based sensors are only a few examples of recent achievements in cell biology. The rapid growth of this field requires frequent reviewing of the recent progress to maintain high research standards and promote future developments.
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Affiliation(s)
- Kathrin Baumgartner
- Physiology, Institute of Theoretical Medicine, University of Augsburg, 86159 Augsburg, Germany; Hanns-Seidel-Stiftung e.V., 80636 Munich, Germany; Center for NanoScience (CeNS), Ludwig-Maximilians-Universität Munich, 80799 Munich, Germany; Institute of Physics, Experimental Physics I, University of Augsburg, 86159 Augsburg, Germany
| | - Christoph Westerhausen
- Physiology, Institute of Theoretical Medicine, University of Augsburg, 86159 Augsburg, Germany; Center for NanoScience (CeNS), Ludwig-Maximilians-Universität Munich, 80799 Munich, Germany; Institute of Physics, Experimental Physics I, University of Augsburg, 86159 Augsburg, Germany; Augsburg Center for Innovative Technologies (ACIT), 86159 Augsburg, Germany.
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14
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Taylor ML, Giacalone AG, Amrhein KD, Wilson RE, Wang Y, Huang X. Nanomaterials for Molecular Detection and Analysis of Extracellular Vesicles. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:524. [PMID: 36770486 PMCID: PMC9920192 DOI: 10.3390/nano13030524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
Extracellular vesicles (EVs) have emerged as a novel resource of biomarkers for cancer and certain other diseases. Probing EVs in body fluids has become of major interest in the past decade in the development of a new-generation liquid biopsy for cancer diagnosis and monitoring. However, sensitive and specific molecular detection and analysis are challenging, due to the small size of EVs, low amount of antigens on individual EVs, and the complex biofluid matrix. Nanomaterials have been widely used in the technological development of protein and nucleic acid-based EV detection and analysis, owing to the unique structure and functional properties of materials at the nanometer scale. In this review, we summarize various nanomaterial-based analytical technologies for molecular EV detection and analysis. We discuss these technologies based on the major types of nanomaterials, including plasmonic, fluorescent, magnetic, organic, carbon-based, and certain other nanostructures. For each type of nanomaterial, functional properties are briefly described, followed by the applications of the nanomaterials for EV biomarker detection, profiling, and analysis in terms of detection mechanisms.
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15
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Suthar J, Taub M, Carney RP, Williams GR, Guldin S. Recent developments in biosensing methods for extracellular vesicle protein characterization. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023; 15:e1839. [PMID: 35999185 PMCID: PMC10078591 DOI: 10.1002/wnan.1839] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/27/2022] [Accepted: 07/13/2022] [Indexed: 01/31/2023]
Abstract
Research into extracellular vesicles (EVs) has grown significantly over the last few decades with EVs being widely regarded as a source of biomarkers for human health and disease with massive clinical potential. Secreted by every cell type in the body, EVs report on the internal cellular conditions across all tissue types. Their presence in readily accessible biofluids makes the potential of EV biosensing highly attractive as a noninvasive diagnostic platform via liquid biopsies. However, their small size (50-250 nm), inherent heterogeneity, and the complexity of the native biofluids introduce challenges for effective characterization, thus, limiting their clinical utility. This has led to a surge in the development of various novel EV biosensing techniques, with capabilities beyond those of conventional methods that have been directly transferred from cell biology. In this review, key detection principles used for EV biosensing are summarized, with a focus on some of the most recent and fundamental developments in the field over the last 5 years. This article is categorized under: Diagnostic Tools > Biosensing Diagnostic Tools > In Vitro Nanoparticle-Based Sensing.
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Affiliation(s)
- Jugal Suthar
- Department of Chemical Engineering, University College London, London, UK.,UCL School of Pharmacy, University College London, London, UK
| | - Marissa Taub
- UCL School of Pharmacy, University College London, London, UK
| | - Randy P Carney
- Department of Biomedical Engineering, University of California, Davis, Davis, California, USA
| | | | - Stefan Guldin
- Department of Chemical Engineering, University College London, London, UK
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16
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An electrochemical aptasensor based on exonuclease III-assisted signal amplification coupled with CRISPR-Cas12a for ochratoxin A detection. Food Control 2023. [DOI: 10.1016/j.foodcont.2023.109631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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17
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Meggiolaro A, Moccia V, Brun P, Pierno M, Mistura G, Zappulli V, Ferraro D. Microfluidic Strategies for Extracellular Vesicle Isolation: Towards Clinical Applications. BIOSENSORS 2022; 13:bios13010050. [PMID: 36671885 PMCID: PMC9855931 DOI: 10.3390/bios13010050] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/23/2022] [Accepted: 12/24/2022] [Indexed: 05/15/2023]
Abstract
Extracellular vesicles (EVs) are double-layered lipid membrane vesicles released by cells. Currently, EVs are attracting a lot of attention in the biological and medical fields due to their role as natural carriers of proteins, lipids, and nucleic acids. Thus, they can transport useful genomic information from their parental cell through body fluids, promoting cell-to-cell communication even between different organs. Due to their functionality as cargo carriers and their protein expression, they can play an important role as possible diagnostic and prognostic biomarkers in various types of diseases, e.g., cancers, neurodegenerative, and autoimmune diseases. Today, given the invaluable importance of EVs, there are some pivotal challenges to overcome in terms of their isolation. Conventional methods have some limitations: they are influenced by the starting sample, might present low throughput and low purity, and sometimes a lack of reproducibility, being operator dependent. During the past few years, several microfluidic approaches have been proposed to address these issues. In this review, we summarize the most important microfluidic-based devices for EV isolation, highlighting their advantages and disadvantages compared to existing technology, as well as the current state of the art from the perspective of the use of these devices in clinical applications.
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Affiliation(s)
- Alessio Meggiolaro
- Department of Physics and Astronomy, University of Padua, Via Marzolo 8, 35131 Padua, Italy
| | - Valentina Moccia
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell’Università 16, 35020 Legnaro, Italy
| | - Paola Brun
- Department of Molecular Medicine, University of Padua, Via Gabelli 63, 35121 Padua, Italy
| | - Matteo Pierno
- Department of Physics and Astronomy, University of Padua, Via Marzolo 8, 35131 Padua, Italy
| | - Giampaolo Mistura
- Department of Physics and Astronomy, University of Padua, Via Marzolo 8, 35131 Padua, Italy
| | - Valentina Zappulli
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell’Università 16, 35020 Legnaro, Italy
| | - Davide Ferraro
- Department of Physics and Astronomy, University of Padua, Via Marzolo 8, 35131 Padua, Italy
- Correspondence:
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18
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Lu Z, Ni W, Liu N, Jin D, Li T, Li K, Zhang Y, Yao Q, Zhang GJ. CRISPR/Cas12a-based fluorescence biosensor for detection of exosomal miR-21 derived from lung cancer. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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19
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Ng RC, El Sachat A, Cespedes F, Poblet M, Madiot G, Jaramillo-Fernandez J, Florez O, Xiao P, Sledzinska M, Sotomayor-Torres CM, Chavez-Angel E. Excitation and detection of acoustic phonons in nanoscale systems. NANOSCALE 2022; 14:13428-13451. [PMID: 36082529 PMCID: PMC9520674 DOI: 10.1039/d2nr04100f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Phonons play a key role in the physical properties of materials, and have long been a topic of study in physics. While the effects of phonons had historically been considered to be a hindrance, modern research has shown that phonons can be exploited due to their ability to couple to other excitations and consequently affect the thermal, dielectric, and electronic properties of solid state systems, greatly motivating the engineering of phononic structures. Advances in nanofabrication have allowed for structuring and phonon confinement even down to the nanoscale, drastically changing material properties. Despite developments in fabricating such nanoscale devices, the proper manipulation and characterization of phonons continues to be challenging. However, a fundamental understanding of these processes could enable the realization of key applications in diverse fields such as topological phononics, information technologies, sensing, and quantum electrodynamics, especially when integrated with existing electronic and photonic devices. Here, we highlight seven of the available methods for the excitation and detection of acoustic phonons and vibrations in solid materials, as well as advantages, disadvantages, and additional considerations related to their application. We then provide perspectives towards open challenges in nanophononics and how the additional understanding granted by these techniques could serve to enable the next generation of phononic technological applications.
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Affiliation(s)
- Ryan C Ng
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
| | | | - Francisco Cespedes
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
- Departamento de Física, Universidad Autónoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Martin Poblet
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
| | - Guilhem Madiot
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
| | - Juliana Jaramillo-Fernandez
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
| | - Omar Florez
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
- Departamento de Física, Universidad Autónoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Peng Xiao
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
- Departamento de Física, Universidad Autónoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Marianna Sledzinska
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
| | - Clivia M Sotomayor-Torres
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
- ICREA, Passeig Lluis Companys 23, 08010 Barcelona, Spain
| | - Emigdio Chavez-Angel
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
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20
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Suthar J, Alvarez-Fernandez A, Taylor A, Fornerod MJ, Williams GR, Guldin S. Silica Inverse Opal Nanostructured Sensors for Enhanced Immunodetection of Extracellular Vesicles by Quartz Crystal Microbalance with Dissipation Monitoring. ACS APPLIED NANO MATERIALS 2022; 5:12951-12961. [PMID: 36185167 PMCID: PMC9513796 DOI: 10.1021/acsanm.2c02775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 08/05/2022] [Indexed: 05/02/2023]
Abstract
Extracellular vesicles (EVs) are nanosized circulating assemblies that contain biomarkers considered promising for early diagnosis within neurology, cardiology, and oncology. Recently, acoustic wave biosensors, in particular based on quartz crystal microbalance with dissipation monitoring (QCM-D), have emerged as a sensitive, label-free, and selective EV characterization platform. A rational approach to further improving sensing detection limits relies on the nanostructuration of the sensor surfaces. To this end, inorganic inverse opals (IOs) derived from colloidal self-assembly present a highly tunable and scalable nanoarchitecture of suitable feature sizes and surface chemistry. This work systematically investigates their use in two-dimensional (2D) and three-dimensional (3D) for enhanced QCM-D EV detection. Precise tuning of the architecture parameters delivered improvements in detection performance to sensitivities as low as 6.24 × 107 particles/mL. Our findings emphasize that attempts to enhance acoustic immunosensing via increasing the surface area by 3D nanostructuration need to be carefully analyzed in order to exclude solvent and artifact entrapment effects. Moreover, the use of 2D nanostructured electrodes to compartmentalize analyte anchoring presents a particularly promising design principle.
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Affiliation(s)
- Jugal Suthar
- Department
of Chemical Engineering, University College
London, Torrington Place, London WC1E 7JE, U.K.
- UCL
School of Pharmacy, University College London,
Bloomsbury, 29-39 Brunswick
Square, London WC1N 1AX, U.K.
| | - Alberto Alvarez-Fernandez
- Department
of Chemical Engineering, University College
London, Torrington Place, London WC1E 7JE, U.K.
| | - Alaric Taylor
- Department
of Chemical Engineering, University College
London, Torrington Place, London WC1E 7JE, U.K.
| | - Maximiliano J. Fornerod
- Department
of Chemical Engineering, University College
London, Torrington Place, London WC1E 7JE, U.K.
| | - Gareth R. Williams
- UCL
School of Pharmacy, University College London,
Bloomsbury, 29-39 Brunswick
Square, London WC1N 1AX, U.K.
| | - Stefan Guldin
- Department
of Chemical Engineering, University College
London, Torrington Place, London WC1E 7JE, U.K.
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21
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Bioprobes-regulated precision biosensing of exosomes: From the nanovesicle surface to the inside. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214538] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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22
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Fan C, Jiang B, Shi W, Chen D, Zhou M. Tri-Channel Electrochemical Immunobiosensor for Combined Detections of Multiple Exosome Biomarkers of Lung Cancer. BIOSENSORS 2022; 12:435. [PMID: 35884238 PMCID: PMC9313016 DOI: 10.3390/bios12070435] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/15/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
Current methods for the early diagnosis of cancer can be invasive and costly. In recent years, exosomes have been recognized as potential biomarkers for cancer diagnostics. The common methods for quantitative detection of exosomes, such as nanoparticle tracking analysis (NTA) and flow cytometry, rely on large-scale instruments and complex operation, with results not specific for cancer. Herein, we present a tri-channel electrochemical immunobiosensor for enzyme-free and label-free detecting carcino-embryonic antigen (CEA), neuron-specific enolase (NSE), and cytokeratin 19 fragments (Cyfra21-1) from exosomes for specific early diagnosis of lung cancer. The electrochemical immunobiosensor showed good selectivity and stability. Under optimum experimental conditions, the linear ranges were from 10-3 to 10 ng/mL for CEA, 10-4 to 102 ng/mL for NSE, and 10-3 to 102 ng/mL for Cyfra21-1, and a detection limit down to 10-4 ng/mL was achieved. Furthermore, we performed exosome analysis in three kinds of lung cancer. The results showed a distinct expression level of exosomal markers in different types. These works provide insight into a promising alternative for the quantification of exosomal markers in specific diseases in the following clinical bioassays.
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Affiliation(s)
- Cui Fan
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China; (C.F.); (B.J.)
- College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
| | - Bingyan Jiang
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China; (C.F.); (B.J.)
- College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
| | - Wenjia Shi
- Department of Human Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410083, China; (W.S.); (D.C.)
| | - Dan Chen
- Department of Human Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410083, China; (W.S.); (D.C.)
| | - Mingyong Zhou
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China; (C.F.); (B.J.)
- College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
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23
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Li K, Tu J, Zhang Y, Jin D, Li T, Li J, Ni W, Xiao MM, Zhang ZY, Zhang GJ. Ultrasensitive Detection of Exosomal miRNA with PMO- Graphene Quantum Dots Functionalized Field Effect Transistor Biosensor. iScience 2022; 25:104522. [PMID: 35754714 PMCID: PMC9218366 DOI: 10.1016/j.isci.2022.104522] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/22/2022] [Accepted: 05/30/2022] [Indexed: 12/03/2022] Open
Abstract
Compared with the conventional DNA probe immobilization on the planar surface, nanoparticles-based DNA probes enable more RNA molecules to be anchored to the sensor surface, thereby improving the detection sensitivity. In this work, we report phosphorodiamidate morpholino oligomers (PMO)-graphene quantum dots (GQDs)-functionalized reduced graphene oxide (RGO) field effect transistor (FET) biosensors for ultrasensitive detection of exosomal microRNAs. After the RGO FET sensor was fabricated, polylysine (PLL) film was deposited onto the RGO surface. GQDs-PMO hybrid was prepared and covalently bound to PLL surface, enabling detection of exosomal microRNAs (miRNAs). The method achieved a detection limit as low as 85 aM and high specificity. Furthermore, the FET sensor was able to detect exosomal miRNAs in plasma samples and distinguish breast cancer samples from healthy samples. Compared with other methods, we use GQDs to further improve the sensitivity of FET, making it a potential tool for early diagnosis of breast cancer. Exosomal miRNAs are detected by GQDs-PMO-functionalized G-FET sensor The sensor can specifically detect 85 aM exosomal miRNA The results are in agreement with those of qRT-PCR This method can also distinguish breast cancer patients from healthy people
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24
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Wang X, Ji J, Yang P, Li X, Pang Y, Lu P. A love-mode surface acoustic wave aptasensor with dummy fingers based on monolayer MoS 2/Au NPs nanocomposites for alpha-fetoprotein detection. Talanta 2022; 243:123328. [PMID: 35217272 DOI: 10.1016/j.talanta.2022.123328] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/12/2022] [Accepted: 02/17/2022] [Indexed: 12/17/2022]
Abstract
The detection of cancer markers still has shortages of low sensitivity, time-consuming operation, the use of unstable and expensive antibodies. In this work, a novel Love-mode surface acoustic wave (LSAW) aptasensor with dummy fingers based on the monolayer molybdenum disulfide/gold nanoparticles (monolayer MoS2/Au NPs) was developed for the highly sensitive and rapid determination of alpha-fetoprotein (AFP) in serum. Interdigital electrodes (IDTs) with dummy fingers were designed and applied to improve the acoustic characteristic of the LSAW aptasensor. The less energy dissipation and wave-front distortion of the LSAW aptasensor were confirmed by COMSOL simulation and test results. The newly-developed sensing film monolayer MoS2/Au NPs/Apt/6-mercaptohexanol (MCH) was applied for the specific detection of AFP and significantly improved the sensitivity of the LSAW aptasensor. The excellent performance of the LSAW aptasensor allowed the sensitive and rapid detection of AFP in serum in the range of 0.01 ⁓ 100 ng/mL with a low detection limit of 4.79 pg/mL. Additionally, the proposed LSAW aptasensor exhibited excellent selectivity, long-term stability, and reproducibility, and could be used to detect other cancer biomarkers.
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Affiliation(s)
- Xiaoli Wang
- Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Chongqing University, Chongqing, 400044, PR China; School of Optoelectronics Engineering, Chongqing University, Chongqing, 400044, PR China.
| | - Junwang Ji
- Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Chongqing University, Chongqing, 400044, PR China; School of Optoelectronics Engineering, Chongqing University, Chongqing, 400044, PR China
| | - Pengfei Yang
- Center for NanoChemistry, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PR China
| | - Xinyu Li
- School of Optoelectronics Engineering, Chongqing University, Chongqing, 400044, PR China
| | - Yiquan Pang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, PR China
| | - Panpan Lu
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China.
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25
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Suthar J, Prieto-Simon B, Williams GR, Guldin S. Dual-Mode and Label-Free Detection of Exosomes from Plasma Using an Electrochemical Quartz Crystal Microbalance with Dissipation Monitoring. Anal Chem 2022. [PMID: 35072456 DOI: 10.1021/acs.analchem.1c04282/suppl_file/ac1c04282_si_001.pdf] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The biomolecular contents of extracellular vesicles, such as exosomes, have been shown to be crucial in intercellular communication and disease propagation. As a result, there has been a recent surge in the exploration of novel biosensing platforms that can sensitively and specifically detect exosomal content such as proteins and nucleic acids, with a view toward application in diagnostic assays. Here, we demonstrate dual-mode and label-free detection of plasma exosomes using an electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D). The platform adopts a direct immunosensing approach to effectively capture exosomes via their surface protein expression of CD63. By combining QCM-D with a tandem in situ electrochemical impedance spectroscopy measurement, we are able to demonstrate relationships between mass, viscoelasticity and impedance inducing properties of each functional layer and analyte. In addition to lowering the limit of detection (by a factor of 2-4) to 6.71 × 107 exosome-sized particles (ESP) per mL in 25% v/v serum, the synergy between dissipation and impedance response introduces improved sensing specificity by offering further distinction between soft and rigid analytes, thereby promoting EQCM-D as an important technique for exosome analysis.
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Affiliation(s)
- Jugal Suthar
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, Bloomsbury, London, WC1N 1AX, United Kingdom
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, United Kingdom
| | - Beatriz Prieto-Simon
- Department of Electronic Engineering, Universitat Rovira i Virgili, 43007, Tarragona, Spain
- ICREA, Pg. Lluis Companys 23, 08010, Barcelona, Spain
| | - Gareth R Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, Bloomsbury, London, WC1N 1AX, United Kingdom
| | - Stefan Guldin
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, United Kingdom
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26
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Suthar J, Prieto-Simon B, Williams GR, Guldin S. Dual-Mode and Label-Free Detection of Exosomes from Plasma Using an Electrochemical Quartz Crystal Microbalance with Dissipation Monitoring. Anal Chem 2022; 94:2465-2475. [PMID: 35072456 PMCID: PMC9096790 DOI: 10.1021/acs.analchem.1c04282] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
![]()
The
biomolecular contents of extracellular vesicles, such as exosomes,
have been shown to be crucial in intercellular communication and disease
propagation. As a result, there has been a recent surge in the exploration
of novel biosensing platforms that can sensitively and specifically
detect exosomal content such as proteins and nucleic acids, with a
view toward application in diagnostic assays. Here, we demonstrate
dual-mode and label-free detection of plasma exosomes using an electrochemical
quartz crystal microbalance with dissipation monitoring (EQCM-D).
The platform adopts a direct immunosensing approach to effectively
capture exosomes via their surface protein expression of CD63. By
combining QCM-D with a tandem in situ electrochemical impedance spectroscopy
measurement, we are able to demonstrate relationships between mass,
viscoelasticity and impedance inducing properties of each functional
layer and analyte. In addition to lowering the limit of detection
(by a factor of 2–4) to 6.71 × 107 exosome-sized
particles (ESP) per mL in 25% v/v serum, the synergy between dissipation
and impedance response introduces improved sensing specificity by
offering further distinction between soft and rigid analytes, thereby
promoting EQCM-D as an important technique for exosome analysis.
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Affiliation(s)
- Jugal Suthar
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, Bloomsbury, London, WC1N 1AX, United Kingdom
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, United Kingdom
| | - Beatriz Prieto-Simon
- Department of Electronic Engineering, Universitat Rovira i Virgili, 43007, Tarragona, Spain
- ICREA, Pg. Lluis Companys 23, 08010, Barcelona, Spain
| | - Gareth R. Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, Bloomsbury, London, WC1N 1AX, United Kingdom
| | - Stefan Guldin
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, United Kingdom
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27
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Zhao W, Hu J, Liu J, Li X, Sun S, Luan X, Zhao Y, Wei S, Li M, Zhang Q, Huang C. Si nanowire Bio-FET for electrical and label-free detection of cancer cell-derived exosomes. MICROSYSTEMS & NANOENGINEERING 2022; 8:57. [PMID: 35655901 PMCID: PMC9151647 DOI: 10.1038/s41378-022-00387-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/17/2022] [Accepted: 04/13/2022] [Indexed: 05/11/2023]
Abstract
Exosomes are highly important in clinical diagnosis due to their high homology with their parental cells. However, conventional exosome detection methods still face the challenges of expensive equipment, low sensitivity, and complex procedures. Field effect transistors (FETs) are not only the most essential electronic component in the modern microelectronics industry but also show great potential for biomolecule detection owing to the advantages of rapid response, high sensitivity, and label-free detection. In this study, we proposed a Si nanowire field-effect transistor (Si-NW Bio-FET) device chemically modified with specific antibodies for the electrical and label-free detection of exosomes. The Si-NW FETs were fabricated by standard microelectronic processes with 45 nm width nanowires and packaged in a polydimethylsiloxane (PDMS) microfluidic channel. The nanowires were further modified with the specific CD63 antibody to form a Si-NW Bio-FET. The use of the developed Si-NW Bio-FET for the electrical and label-free detection of exosomes was successfully demonstrated with a limit of detection (LOD) of 2159 particles/mL. In contrast to other technologies, in this study, Si-NW Bio-FET provides a unique strategy for directly quantifying and real-time detecting exosomes without labeling, indicating its potential as a tool for the early diagnosis of cancer.
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Affiliation(s)
- Wenjie Zhao
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029 People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Jiawei Hu
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029 People’s Republic of China
- School of Information Science and Technology, North China University of Technology, Beijing, 100144 People’s Republic of China
| | - Jinlong Liu
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029 People’s Republic of China
| | - Xin Li
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029 People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Sheng Sun
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029 People’s Republic of China
| | - Xiaofeng Luan
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029 People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Yang Zhao
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029 People’s Republic of China
| | - Shuhua Wei
- School of Information Science and Technology, North China University of Technology, Beijing, 100144 People’s Republic of China
| | - Mingxiao Li
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029 People’s Republic of China
| | - Qingzhu Zhang
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029 People’s Republic of China
| | - Chengjun Huang
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029 People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
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Nair MP, Teo AJT, Li KHH. Acoustic Biosensors and Microfluidic Devices in the Decennium: Principles and Applications. MICROMACHINES 2021; 13:24. [PMID: 35056189 PMCID: PMC8779171 DOI: 10.3390/mi13010024] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/11/2021] [Accepted: 12/20/2021] [Indexed: 12/27/2022]
Abstract
Lab-on-a-chip (LOC) technology has gained primary attention in the past decade, where label-free biosensors and microfluidic actuation platforms are integrated to realize such LOC devices. Among the multitude of technologies that enables the successful integration of these two features, the piezoelectric acoustic wave method is best suited for handling biological samples due to biocompatibility, label-free and non-invasive properties. In this review paper, we present a study on the use of acoustic waves generated by piezoelectric materials in the area of label-free biosensors and microfluidic actuation towards the realization of LOC and POC devices. The categorization of acoustic wave technology into the bulk acoustic wave and surface acoustic wave has been considered with the inclusion of biological sample sensing and manipulation applications. This paper presents an approach with a comprehensive study on the fundamental operating principles of acoustic waves in biosensing and microfluidic actuation, acoustic wave modes suitable for sensing and actuation, piezoelectric materials used for acoustic wave generation, fabrication methods, and challenges in the use of acoustic wave modes in biosensing. Recent developments in the past decade, in various sensing potentialities of acoustic waves in a myriad of applications, including sensing of proteins, disease biomarkers, DNA, pathogenic microorganisms, acoustofluidic manipulation, and the sorting of biological samples such as cells, have been given primary focus. An insight into the future perspectives of real-time, label-free, and portable LOC devices utilizing acoustic waves is also presented. The developments in the field of thin-film piezoelectric materials, with the possibility of integrating sensing and actuation on a single platform utilizing the reversible property of smart piezoelectric materials, provide a step forward in the realization of monolithic integrated LOC and POC devices. Finally, the present paper highlights the key benefits and challenges in terms of commercialization, in the field of acoustic wave-based biosensors and actuation platforms.
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Affiliation(s)
| | | | - King Ho Holden Li
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore; (M.P.N.); (A.J.T.T.)
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29
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Ma X, Hao Y, Liu L. Progress in Nanomaterials-Based Optical and Electrochemical Methods for the Assays of Exosomes. Int J Nanomedicine 2021; 16:7575-7608. [PMID: 34803380 PMCID: PMC8599324 DOI: 10.2147/ijn.s333969] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 10/28/2021] [Indexed: 12/11/2022] Open
Abstract
Exosomes with diameters of 30-150 nm are small membrane-bound vesicles secreted by a variety of cells. They play an important role in many biological processes, such as tumor-related immune response and intercellular signal transduction. Exosomes have been considered as emerging and noninvasive biomarkers for cancer diagnosis. Recently, a large number of optical and electrochemical biosensors have been proposed for sensitive detection of exosomes. To meet the increasing demands for ultrasensitive detection, nanomaterials have been integrated with various techniques as powerful components. Because of their intrinsic merits of biological compatibility, excellent physicochemical features and unique catalytic ability, nanomaterials have significantly improved the analytical performances of exosome biosensors. In this review, we summarized the recent progress in nanomaterials-based biosensors for the detection of cancer-derived exosomes, including fluorescence, colorimetry, surface plasmon resonance spectroscopy, surface enhanced Raman scattering spectroscopy, electrochemistry, electrochemiluminescence and so on.
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Affiliation(s)
- Xiaohua Ma
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Shangqiu Normal University, Shangqiu, Henan, 476000, People’s Republic of China
| | - Yuanqiang Hao
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Shangqiu Normal University, Shangqiu, Henan, 476000, People’s Republic of China
| | - Lin Liu
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Shangqiu Normal University, Shangqiu, Henan, 476000, People’s Republic of China
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan, 455000, People’s Republic of China
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30
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Min L, Wang B, Bao H, Li X, Zhao L, Meng J, Wang S. Advanced Nanotechnologies for Extracellular Vesicle-Based Liquid Biopsy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102789. [PMID: 34463056 PMCID: PMC8529441 DOI: 10.1002/advs.202102789] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Indexed: 05/09/2023]
Abstract
Extracellular vesicles (EVs) are emerging as a new source of biomarkers in liquid biopsy because of their wide presence in most body fluids and their ability to load cargoes from disease-related cells. Owing to the crucial role of EVs in disease diagnosis and treatment, significant efforts have been made to isolate, detect, and analyze EVs with high efficiency. A recent overview of advanced EV detection nanotechnologies is discussed here. First, several key challenges in EV-based liquid biopsies are introduced. Then, the related pivotal advances in nanotechnologies for EV isolation based on physical features, chemical affinity, and the combination of nanostructures and chemical affinity are summarized. Next, a summary of high-sensitivity sensors for EV detection and advanced approaches for single EV detection are provided. Later, EV analysis is introduced in practical clinical scenarios, and the application of machine learning in this field is highlighted. Finally, future opportunities for the development of next-generation nanotechnologies for EV detection are presented.
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Affiliation(s)
- Li Min
- Department of GastroenterologyBeijing Friendship HospitalCapital Medical UniversityNational Clinical Research Center for Digestive DiseasesBeijing Digestive Disease CenterBeijing Key Laboratory for Precancerous Lesion of Digestive DiseaseBeijing100050P. R. China
| | - Binshuai Wang
- Department of UrologyPeking University Third HospitalBeijing100191P. R. China
| | - Han Bao
- Key Laboratory of Bio‐inspired Materials and Interfacial ScienceCAS Center for Excellence in NanoscienceTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Xinran Li
- Department of UrologyPeking University Third HospitalBeijing100191P. R. China
| | - Libo Zhao
- Echo Biotech Co., Ltd.Beijing102206P. R. China
| | - Jingxin Meng
- Key Laboratory of Bio‐inspired Materials and Interfacial ScienceCAS Center for Excellence in NanoscienceTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Shutao Wang
- Key Laboratory of Bio‐inspired Materials and Interfacial ScienceCAS Center for Excellence in NanoscienceTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
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31
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Zhao W, Zhang L, Ye Y, Li Y, Luan X, Liu J, Cheng J, Zhao Y, Li M, Huang C. Microsphere mediated exosome isolation and ultra-sensitive detection on a dielectrophoresis integrated microfluidic device. Analyst 2021; 146:5962-5972. [PMID: 34494041 DOI: 10.1039/d1an01061a] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Tumor-derived exosomes have been recognized as potential biomarkers for cancer diagnosis because they are actively involved in cancer progression and metastasis. However, progress in practical exosome analysis is still slow due to the limitation in exosome isolation and detection. The development of microfluidic devices has provided a promising analytical platform compared with traditional methods. In this study, we develop an exosome isolation and detection method based on a microfluidic device (ExoDEP-chip), which realized microsphere mediated dielectrophoretic isolation and immunoaffinity detection. Exosomes were firstly isolated by binding to antibodies pre-immobilized on the polystyrene (PS) microsphere surface and were further detected using fluorescently labeled antibodies by fluorescence microscopy. Single microspheres were then trapped into single microwells under the DEP force in the ExoDEP-chip. A wide range from 1.4 × 103 to 1.4 × 108 exosomes per mL with a detection limit of 193 exosomes per mL was obtained. Through monitoring five proteins (CD81, CEA, EpCAM, CD147, and AFP) of exosomes from three different cell lines (A549, HEK293, and HepG2), a significant difference in marker expression levels was observed in different cell lines. Therefore, this method has good prospects in exosome-based tumor marker detection and cancer diagnosis.
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Affiliation(s)
- Wenjie Zhao
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, People's Republic of China. .,School of Future Technology, University of Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Lingqian Zhang
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Yifei Ye
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, People's Republic of China. .,School of Future Technology, University of Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Yuang Li
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, People's Republic of China. .,School of Future Technology, University of Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Xiaofeng Luan
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Jinlong Liu
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Jie Cheng
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, People's Republic of China. .,School of Future Technology, University of Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Yang Zhao
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Mingxiao Li
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Chengjun Huang
- Institute of Microelectronics, Chinese Academy of Sciences, Beijing, People's Republic of China. .,School of Future Technology, University of Chinese Academy of Sciences, Beijing, People's Republic of China.
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32
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Cheng S, Li Y, Yan H, Wen Y, Zhou X, Friedman L, Zeng Y. Advances in microfluidic extracellular vesicle analysis for cancer diagnostics. LAB ON A CHIP 2021; 21:3219-3243. [PMID: 34352059 PMCID: PMC8387453 DOI: 10.1039/d1lc00443c] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Extracellular vesicles (EVs) secreted by cells into the bloodstream and other bodily fluids, including exosomes, have been demonstrated to be a class of significant messengers that mediate intercellular communications. Tumor-derived extracellular vesicles are enriched in a selective set of biomolecules from original cells, including proteins, nucleic acids, and lipids, and thus offer a new perspective of liquid biopsy for cancer diagnosis and therapeutic monitoring. Owing to the heterogeneity of their biogenesis, physical properties, and molecular constituents, isolation and molecular characterization of EVs remain highly challenging. Microfluidics provides a disruptive platform for EV isolation and analysis owing to its inherent advantages to promote the development of new molecular and cellular sensing systems with improved sensitivity, specificity, spatial and temporal resolution, and throughput. This review summarizes the state-of-the-art advances in the development of microfluidic principles and devices for EV isolation and biophysical or biochemical characterization, in comparison to the conventional counterparts. We will also survey the progress in adapting the new microfluidic techniques to assess the emerging EV-associated biomarkers, mostly focused on proteins and nucleic acids, for clinical diagnosis and prognosis of cancer. Lastly, we will discuss the current challenges in the field of EV research and our outlook on future development of enabling microfluidic platforms for EV-based liquid biopsy.
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Affiliation(s)
- Shibo Cheng
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA.
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33
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Shen J, Fu S, Su R, Xu H, Wang W, Lu Z, Feng Q, Zeng F, Song C, Pan F. Structure with thin SiO x/SiN x bilayer and Al electrodes for high-frequency, large-coupling, and low-cost surface acoustic wave devices. ULTRASONICS 2021; 115:106460. [PMID: 34029835 DOI: 10.1016/j.ultras.2021.106460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 05/01/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
With the development of fifth-generation wireless systems, the Internet of Things, and health services, surface acoustic wave (SAW)-based filters and sensors have attracted considerable interest. This study presents a new structure for high-frequency, large-coupling, and low-cost SAW devices that helps implement high-frequency and wideband filters and enhances the sensitivity of sensors. The structure is based on 15°Y-X LiNbO3, thin SiOx/SiNx bilayer overlay, and Al electrodes. Furthermore, a low-cost fabrication process for SAW devices based on this structure was designed. Simulation and experimental results show that the bilayer substantially weakens the leaky nature of shear-horizontal-type SAWs with a phase velocity higher than that of a slow-shear bulk wave in LiNbO3. Thus, the limitation related to the velocity of 4029 m/s was overcome, and the phase velocity reached approximately 4500 m/s, which means an increase of 50% compared with that of conventional Cu/15°Y-X LiNbO3 devices. Consequently, the frequency dramatically increases, and the quality of the SAW response is ensured. Simultaneously, a large electromechanical coupling factor close to 20% can be achieved, which is still suitable for wideband filters and sensors with high energy transduction coefficients. This new structure is expected to become a major candidate for SAW devices in the future.
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Affiliation(s)
- Junyao Shen
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Sulei Fu
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
| | - Rongxuan Su
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Huiping Xu
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Weibiao Wang
- SHOULDER Electronics Limited, Wuxi 214124, Jiangsu, China
| | - Zengtian Lu
- SHOULDER Electronics Limited, Wuxi 214124, Jiangsu, China
| | - Qiong Feng
- SHOULDER Electronics Limited, Wuxi 214124, Jiangsu, China
| | - Fei Zeng
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Cheng Song
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Feng Pan
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
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34
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Kano K, Yatsuda H, Kondoh J. Evaluation of Shear Horizontal Surface Acoustic Wave Biosensors Using "Layer Parameter" Obtained from Sensor Responses during Immunoreaction. SENSORS (BASEL, SWITZERLAND) 2021; 21:4924. [PMID: 34300665 PMCID: PMC8309872 DOI: 10.3390/s21144924] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 07/01/2021] [Accepted: 07/14/2021] [Indexed: 01/24/2023]
Abstract
Shear horizontal surface acoustic wave (SH-SAW) biosensors measure the reaction of capture antibodies immobilized on the sensing surface to capture test molecules (antigens) by using the change in SH-SAW propagation characteristics. SH-SAW displacement exists not only on the SH-SAW propagating surface, but also partially penetrates the specimen liquid to a certain depth, which is determined by the liquid properties of the specimen and the operating frequency of the SH-SAW. This phenomenon is called viscosity penetration. In previous studies, the effect of viscosity penetration was not considered in the measurement of SH-SAW biosensors, and the mass or viscosity change caused by the specific binding of capture antibodies to the target antigen was mainly used for the measurement. However, by considering the effect of viscosity penetration, it was found that the antigen-antibody reaction could be measured and the detection characteristics of the biosensor could be improved. Therefore, this study aims to evaluate the detection properties of SH-SAW biosensors in the surface height direction by investigating the relationship between molecular dimensions and SH-SAW propagation characteristics, which are pseudo-changed by varying the diameter of gold nanoparticles. For the evaluation, we introduced a layer parameter defined by the ratio of the SH-SAW amplitude change to the SH-SAW velocity change caused by the antigen-antibody reaction. We found a correlation between the layer parameter and pseudo-varied molecular dimensions. The results suggest that SH-SAW does not only measure the mass and viscosity but can also measure the size of the molecule to be detected. This shows that SH-SAW biosensors can be used for advanced functionality.
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Affiliation(s)
- Koji Kano
- Japan Radio Co., Ltd., 834 Inasatomachi Nagano-shi, Nagono 381-2289, Japan;
- Graduate School of Science and Technology, Shizuoka University, Shizuoka 432-8561, Japan;
| | - Hiromi Yatsuda
- Japan Radio Co., Ltd., 834 Inasatomachi Nagano-shi, Nagono 381-2289, Japan;
| | - Jun Kondoh
- Graduate School of Science and Technology, Shizuoka University, Shizuoka 432-8561, Japan;
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35
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Bai X, Song B, Chen Z, Zhang W, Chen D, Dai Y, Liang S, Zhang D, Zhao Z, Feng L. Postoperative evaluation of tumours based on label-free acoustic separation of circulating tumour cells by microstreaming. LAB ON A CHIP 2021; 21:2721-2729. [PMID: 34165474 DOI: 10.1039/d1lc00165e] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Metastatic tumour recurrence caused by circulating tumour cells (CTCs) after surgery is responsible for more than 90% of tumour-related deaths. A postoperative evaluation system based on the long-term dynamic detection of CTCs helps in guiding the postoperative treatment of tumours in real time and preventing metastases and recurrence of tumours after treatment. In this study, a simple, rapid, and low-cost postoperative evaluation system was established based on the number of CTCs captured by a label-free acoustic separation device from whole blood samples of mice, of which breast tumours were surgically removed, and tumour metastasis was successfully predicted. First, an acoustofluidic device with a custom-designed bottom microcavity array was fabricated to induce highly localised acoustic microstreaming by applying acoustic vibration. Second, experiments of capturing 'defined' cells (artificially mixed individual 4T1 cancer cells into normal blood) based on optimal acoustic streaming were performed. The separation device exhibited a high capture efficiency (>96%). Further applications of capturing the 'true' CTCs derived from postoperative mice were successfully developed to predict tumour prognosis based on the number of captured CTCs. Finally, the prediction was verified through long-term observation of mice with excised tumours. The acoustofluidic device can efficiently capture CTCs and precisely predict tumour metastasis in a low-cost and non-invasive manner. This will help clinicians monitor patients that underwent surgical resection of tumours over a long period of time and facilitate optimal treatment strategies in a timely manner.
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Affiliation(s)
- Xue Bai
- School of Mechanical Engineering & Automation, Beihang University, Xueyuan Road No. 37, Haidian District, Beijing 100191, China.
| | - Bin Song
- School of Mechanical Engineering & Automation, Beihang University, Xueyuan Road No. 37, Haidian District, Beijing 100191, China.
| | - Ziteng Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Wei Zhang
- School of Mechanical Engineering & Automation, Beihang University, Xueyuan Road No. 37, Haidian District, Beijing 100191, China.
| | - Dixiao Chen
- School of Mechanical Engineering & Automation, Beihang University, Xueyuan Road No. 37, Haidian District, Beijing 100191, China.
| | - Yuguo Dai
- School of Mechanical Engineering & Automation, Beihang University, Xueyuan Road No. 37, Haidian District, Beijing 100191, China.
| | - Shuzhang Liang
- School of Mechanical Engineering & Automation, Beihang University, Xueyuan Road No. 37, Haidian District, Beijing 100191, China.
| | - Deyuan Zhang
- School of Mechanical Engineering & Automation, Beihang University, Xueyuan Road No. 37, Haidian District, Beijing 100191, China. and Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, China
| | - Zhijun Zhao
- Clinical Laboratory Center, General Hospital of Ningxia Medical University, Yinchuan 750001, China and Ningxia Key Laboratory of Clinical and Pathogenic Microbiology, General Hospital of Ningxia Medical University, Yinchuan 750001, China
| | - Lin Feng
- School of Mechanical Engineering & Automation, Beihang University, Xueyuan Road No. 37, Haidian District, Beijing 100191, China. and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
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36
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Ding L, Yang X, Gao Z, Effah CY, Zhang X, Wu Y, Qu L. A Holistic Review of the State-of-the-Art Microfluidics for Exosome Separation: An Overview of the Current Status, Existing Obstacles, and Future Outlook. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2007174. [PMID: 34047052 DOI: 10.1002/smll.202007174] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 02/25/2021] [Indexed: 06/12/2023]
Abstract
Exosomes, a class of small extracellular vesicles (30-150 nm), are secreted by almost all types of cells into virtually all body fluids. These small vesicles are attracting increasing research attention owing to their potential for disease diagnosis and therapy. However, their inherent heterogeneity and the complexity of bio-fluids pose significant challenges for their isolation. Even the "gold standard," differential centrifugation, suffers from poor yields and is time-consuming. In this context, recent developments in microfluidic technologies have provided an ideal system for exosome extraction and these devices exhibit some fascinating properties such as high speeds, good portability, and low sample volumes. In this review, the focus is on the state-of-the-art microfluidic technologies for exosome isolation and highlight potential directions for future research and development by analyzing the challenges faced by the current strategies.
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Affiliation(s)
- Lihua Ding
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Xiaonan Yang
- School of Information Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Zibo Gao
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Clement Yaw Effah
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Xiaoju Zhang
- Department of Respiratory and Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450001, China
| | - Yongjun Wu
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Lingbo Qu
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou University, Zhengzhou, 450001, China
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37
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Gao Y, Fajrial AK, Yang T, Ding X. Emerging on-chip surface acoustic wave technology for small biomaterials manipulation and characterization. Biomater Sci 2021; 9:1574-1582. [PMID: 33283794 DOI: 10.1039/d0bm01269f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A surface acoustic wave (SAW) is a sound wave travelling on the surface of an elastic material. SAW offers a robust control of the acoustic energy leading to an unparalleled versatility. As an actuator, SAW can exert acoustic forces on particles and fluids thus enabling dexterous micro/nanoscale manipulations. As a sensor, SAW has a unique sensing capability upon changes in the environment. On-chip SAW technology, in which SAW is integrated with modern lab-on-a-chip (LOC), has drawn a lot of attention in recent years and found various exciting applications in micro/nanosystems. In particular, its well-known biocompatibility provides on-chip SAW technology as an exceptional platform for biomaterials research at the small-scale. In this minireview, we highlighted recent advances of on-chip SAW technology for biomaterials manipulation and characterization with a focus on cell-based (e.g. single-cell and multicellular) biomaterials. We also discussed and shared our perspective on future directions for this emerging research field.
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Affiliation(s)
- Yu Gao
- Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO 80309, USA.
| | - Apresio K Fajrial
- Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO 80309, USA.
| | - Tao Yang
- Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO 80309, USA.
| | - Xiaoyun Ding
- Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO 80309, USA. and Biomedical Engineering Program, University of Colorado Boulder, Boulder, CO 80309, USA
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38
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A 433-MHz surface acoustic wave sensor with Ni-TiO 2-poly(L-lysine) composite film for dopamine determination. Mikrochim Acta 2020; 187:671. [PMID: 33225378 DOI: 10.1007/s00604-020-04635-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 11/06/2020] [Indexed: 01/30/2023]
Abstract
A ternary hybrid material composed of Ni nanoparticles (NPs), TiO2 NPs, and poly(L-lysine) (Ply) was used as a sensing material. It was electrodeposited in situ onto a commercial 433-MHz surface acoustic wave (SAW) resonator to construct a Ni-TiO2-Ply/SAW sensor. The Ni-TiO2-Ply sensing layer fully covered the resonant cavity of the SAW resonator. As the sensing layer completely covers the interdigital transducer and piezoelectric substrate, the sensing area is significantly increased, and the resonator is protected from damage or contamination. To detect the level of dopamine (DA) in serum, the fabrication of the Ni-TiO2-Ply sensing layer, distributions of various components in the sensing layer, and responses of the SAW biosensor to DA were investigated in detail. In addition, an electric field-assisted liquid-phase oxidation technique was developed for loading analytes onto the SAW sensors. After optimizing the pH value and L-lysine content of the sensing layer electrolyte and the pH value of the DA solution, the SAW biosensor responded to DA with a linear concentration range of 1 to 1000 nM, sensitivity of 5.77 MHz nM-1 cm-2, and limit of detection of 0.067 nM. Moreover, the sensor exhibited good selectivity, reproducibility, and stability at ambient temperature.Graphical abstract.
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39
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Jiang Z, Liu G, Li J. Recent Progress on the Isolation and Detection Methods of Exosomes. Chem Asian J 2020; 15:3973-3982. [PMID: 33029906 DOI: 10.1002/asia.202000873] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/04/2020] [Indexed: 12/15/2022]
Abstract
Exosomes are known as one of extracellular vesicles, which are found in various body fluids and released by cells. As transport carrier, exosomes participate actively in intercellular communication and reflect their characteristics uniquely to the origin cells. Due to their unique biological physical properties and physiological functions, exosomes are considered to be one of best biomarkers of cancer diagnosis. At the same time, exosomes are potential therapeutic targets and drug delivery carriers. Therefore, the characteristics, functions and analytical methods of exosomes have increasingly attracted wide attention among scientists. In this review, the recent research progress on the basic characteristics and functional applications of exosomes are summarized. Furthermore and importantly, this review focuses on the recent advance in the purification and test methods of exosomes in recent years. Finally, issues pertaining to exosome detection are presented. Based on newly discovered characteristic of exosomes, the opportunities and challenges for future research of the purification and quantitative detection methods are outlined.
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Affiliation(s)
- Zejun Jiang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, P. R. China
| | - Guangyan Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, P. R. China.,College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, P. R. China
| | - Jianping Li
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, P. R. China.,College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, P. R. China
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40
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Yu X, Sha L, Dong L, Cao Y, Zhao J. Recent Advances in Bio-Sensing Methods for the Detection of Tumor Exosomes. Crit Rev Anal Chem 2020; 52:356-374. [PMID: 32762253 DOI: 10.1080/10408347.2020.1802220] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Exosomes, small vesicles with the diameters of 40-160 nm, play an important role in intercellular transport and communication. Exosomes are rich in many kinds of biomolecules, and differential expression of exosomal contents directly reflects the state of the original cells. Therefore, the tumor exosomes are appearing as promising biomarkers in liquid biopsy, and highly sensitive and specific detection of tumor exosomes may provide the information for the early diagnosis, real-time monitoring and treatment of the tumors. In this review, we summarized the recent advances in the detection of tumor exosomes, mainly focusing on the use of different analytical techniques, such as optical and electrochemical methods as well as that combination with newly-emerging microfluidic techniques, thereby providing valuable information for the application in the clinical diagnosis and management of the tumors.
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Affiliation(s)
- Xiaomeng Yu
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai, P. R. China
| | - Lingjun Sha
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai, P. R. China
| | - Langjian Dong
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai, P. R. China
| | - Ya Cao
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai, P. R. China
| | - Jing Zhao
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai, P. R. China
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41
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Minamiki T, Ichikawa Y, Kurita R. The Power of Assemblies at Interfaces: Nanosensor Platforms Based on Synthetic Receptor Membranes. SENSORS (BASEL, SWITZERLAND) 2020; 20:E2228. [PMID: 32326464 PMCID: PMC7218865 DOI: 10.3390/s20082228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/06/2020] [Accepted: 04/09/2020] [Indexed: 11/17/2022]
Abstract
Synthetic sensing materials (artificial receptors) are some of the most attractive components of chemical/biosensors because of their long-term stability and low cost of production. However, the strategy for the practical design of these materials toward specific molecular recognition in water is not established yet. For the construction of artificial material-based chemical/biosensors, the bottom-up assembly of these materials is one of the effective methods. This is because the driving forces of molecular recognition on the receptors could be enhanced by the integration of such kinds of materials at the 'interfaces', such as the boundary portion between the liquid and solid phases. Additionally, the molecular assembly of such self-assembled monolayers (SAMs) can easily be installed in transducer devices. Thus, we believe that nanosensor platforms that consist of synthetic receptor membranes on the transducer surfaces can be applied to powerful tools for high-throughput analyses of the required targets. In this review, we briefly summarize a comprehensive overview that includes the preparation techniques for molecular assemblies, the characterization methods of the interfaces, and a few examples of receptor assembly-based chemical/biosensing platforms on each transduction mechanism.
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Affiliation(s)
- Tsukuru Minamiki
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan;
- DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), National Institute of Advanced Industrial Science and Technology (AIST), Central 5-41, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Yuki Ichikawa
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan;
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
| | - Ryoji Kurita
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan;
- DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), National Institute of Advanced Industrial Science and Technology (AIST), Central 5-41, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
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