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Hassan Akhtar M, Azhar Hayat Nawaz M, Abbas M, Liu N, Han W, Lv Y, Yu C. Advances in pH Sensing: From Traditional Approaches to Next-Generation Sensors in Biological Contexts. CHEM REC 2024; 24:e202300369. [PMID: 38953343 DOI: 10.1002/tcr.202300369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 04/18/2024] [Indexed: 07/04/2024]
Abstract
pH has been considered one of the paramount factors in bodily functions because most cellular tasks exclusively rely on precise pH values. In this context, the current techniques for pH sensing provide us with the futuristic insight to further design therapeutic and diagnostic tools. Thus, pH-sensing (electrochemically and optically) is rapidly evolving toward exciting new applications and expanding researchers' interests in many chemical contexts, especially in biomedical applications. The adaptation of cutting-edge technology is subsequently producing the modest form of these biosensors as wearable devices, which are providing us the opportunity to target the real-time collection of vital parameters, including pH for improved healthcare systems. The motif of this review is to provide insight into trending tech-based systems employed in real-time or in-vivo pH-responsive monitoring. Herein, we briefly go through the pH regulation in the human body to help the beginners and scientific community with quick background knowledge, recent advances in the field, and pH detection in real-time biological applications. In the end, we summarize our review by providing an outlook; challenges that need to be addressed, and prospective integration of various pH in vivo platforms with modern electronics that can open new avenues of cutting-edge techniques for disease diagnostics and prevention.
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Affiliation(s)
- Mahmood Hassan Akhtar
- College of Animal Science, Jilin University, Changchun, 130062, China
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Muhammad Azhar Hayat Nawaz
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM) COMSATS, University Islamabad, 54000, Lahore, Campus, Pakistan
| | - Manzar Abbas
- Department of Chemistry, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, UAE
- Functional Biomaterials Group, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, UAE
| | - Ning Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
| | - Wenzhao Han
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
| | - Yan Lv
- College of Animal Science, Jilin University, Changchun, 130062, China
| | - Cong Yu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
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2
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Wang L, Wang Y, Wu X, Wang P, Luo X, Lv S. Advances in microneedles for transdermal diagnostics and sensing applications. Mikrochim Acta 2024; 191:406. [PMID: 38898359 DOI: 10.1007/s00604-024-06458-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024]
Abstract
Microneedles, the miniaturized needles, which can pierce the skin with minimal invasiveness open up new possibilities for constructing personalized Point-of-Care (POC) diagnostic platforms. Recent advances in microneedle-based POC diagnostic systems, especially their successful implementation with wearable technologies, enable biochemical detection and physiological recordings in a user-friendly manner. This review presents an overview of the current advances in microneedle-based sensor devices, with emphasis on the biological basis of transdermal sensing, fabrication, and application of different types of microneedles, and a summary of microneedle devices based on various sensing strategies. It concludes with the challenges and future prospects of this swiftly growing field. The aim is to present a critical and thorough analysis of the state-of-the-art development of transdermal diagnostics and sensing devices based on microneedles, and to bridge the gap between microneedle technology and pragmatic applications.
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Affiliation(s)
- Lei Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, MOE, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Yingli Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, MOE, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Xiao Wu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, MOE, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Peipei Wang
- Department of Rehabilitation Medicine, Qingdao Central Hospital, University of Health and Rehabilitation Sciences, Qingdao, 266000, China
| | - Xiliang Luo
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, MOE, Qingdao University of Science and Technology, Qingdao, 266042, China.
| | - Shaoping Lv
- Department of Rehabilitation Medicine, Qingdao Central Hospital, University of Health and Rehabilitation Sciences, Qingdao, 266000, China.
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3
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Wang X, Wang Z, Xiao M, Li Z, Zhu Z. Advances in biomedical systems based on microneedles: design, fabrication, and application. Biomater Sci 2024; 12:530-563. [PMID: 37971423 DOI: 10.1039/d3bm01551c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Wearable devices have become prevalent in biomedical studies due to their convenient portability and potential utility in biomarker monitoring for healthcare. Accessing interstitial fluid (ISF) across the skin barrier, microneedle (MN) is a promising minimally invasive wearable technology for transdermal sensing and drug delivery. MN has the potential to overcome the limitations of conventional transdermal drug administration, making it another prospective mode of drug delivery after oral and injectable. Subsequently, combining MN with multiple sensing approaches has led to its extensive application to detect biomarkers in ISF. In this context, employing MN platforms and control schemes to merge diagnostic and therapeutic capabilities into theranostic systems will facilitate on-demand therapy and point-of-care diagnostics, paving the way for future MN technologies. A comprehensive analysis of the growing advances of microneedles in biomedical systems is presented in this review to summarize the latest studies for academics in the field and to offer for reference the issues that need to be addressed in MN application for healthcare. Covering an array of novel studies, we discuss the following main topics: classification of microneedles in the biomedical field, considerations of MN design, current applications of microneedles in diagnosis and therapy, and the regulatory landscape and prospects of microneedles for biomedical applications. This review sheds light on the significance of microneedle-based innovations, presenting an analysis of their potential implications and contributions to the community of wearable healthcare technologies. The review provides a comprehensive understanding of the field's current state and potential, making it a valuable resource for academics and clinicians seeking to harness the full potential of MN applications.
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Affiliation(s)
- Xinghao Wang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
| | - Zifeng Wang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
| | - Min Xiao
- School of Health Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
| | - Zhanhong Li
- School of Health Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
| | - Zhigang Zhu
- School of Health Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
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4
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Dervisevic M, Dervisevic E, Esser L, Easton CD, Cadarso VJ, Voelcker NH. Wearable microneedle array-based sensor for transdermal monitoring of pH levels in interstitial fluid. Biosens Bioelectron 2023; 222:114955. [PMID: 36462430 DOI: 10.1016/j.bios.2022.114955] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/19/2022] [Accepted: 11/24/2022] [Indexed: 11/27/2022]
Abstract
Microneedle-based wearable sensors offer an alternative approach to traditional invasive blood-based health monitoring and disease diagnostics techniques. Instead of blood, microneedle-based sensors target the skin interstitial fluid (ISF), in which the biomarker type and concentration profile resemble the one found in the blood. However, unlike blood, interstitial fluid does not have the same pH-buffering capacity causing deviation of pH levels from the physiological range. Information about the skin ISF pH levels can be used as a biomarker for a wide range of pathophysiological conditions and as a marker for the calibration of a wearable sensor. The ISF pH can significantly affect the detection accuracy of other biomarkers as it influences enzyme activity, aptamer affinity, and antibody-antigen interaction. Herein, we report the fabrication of a high-density polymeric microneedle array-based (PMNA) sensing patch and its optimization for the potentiometric transdermal monitoring of pH levels in ISF. The wearable sensor utilizes a polyaniline-coated PMNA having a density of ∼10,000 microneedles per cm2, containing individual microneedles with a height of ∼250 μm, and a tip diameter of ∼2 μm. To prevent interference from other body fluids like sweat, an insulating layer is deposited at the base of the PMNA. The wearable pH sensor operates from pH 4.0 to 8.6 with a sensitivity of 62.9 mV per pH unit and an accuracy of ±0.036 pH units. Furthermore, testing on a mouse demonstrates the ability of the PMNA to provide a real-time reading of the transdermal pH values. This microneedle-based system will significantly contribute to advancing transdermal wearable sensors technology, simplifying the fabrication process, and improving the cost-effectiveness of such devices.
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Affiliation(s)
- Muamer Dervisevic
- Drug Delivery, Disposition, and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, 3052, Australia
| | - Esma Dervisevic
- Department of Mechanical and Aerospace Engineering, Monash University, Room 227, New Horizons Building, 20 Research Way, Clayton, Victoria, 3800, Australia
| | - Lars Esser
- Drug Delivery, Disposition, and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, 3052, Australia; Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, Victoria, 3168, Australia
| | - Christopher D Easton
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, Victoria, 3168, Australia
| | - Victor J Cadarso
- Department of Mechanical and Aerospace Engineering, Monash University, Room 227, New Horizons Building, 20 Research Way, Clayton, Victoria, 3800, Australia; Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria, 3168, Australia
| | - Nicolas H Voelcker
- Drug Delivery, Disposition, and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, 3052, Australia; Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria, 3168, Australia; Materials Science and Engineering, Monash University, Clayton, Victoria, 3168, Australia.
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5
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Molinero-Fernández Á, Casanova A, Wang Q, Cuartero M, Crespo GA. In Vivo Transdermal Multi-Ion Monitoring with a Potentiometric Microneedle-Based Sensor Patch. ACS Sens 2022; 8:158-166. [PMID: 36475628 PMCID: PMC9887649 DOI: 10.1021/acssensors.2c01907] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Microneedle sensor technology offers exciting opportunities for decentralized clinical analyses. A novel issue puts forward herein is to demonstrate the uniqueness of membrane-based microneedles to accomplish real-time, on-body monitoring of multiple ions simultaneously. The use of multi-ion detection is clinically relevant since it is expected to provide a more complete and reliable assessment of the clinical status of a subject concerning electrolyte disorders and others. We present a microneedle system for transdermal multiplexed tracing of pH, Na+, K+, Ca2+, Li+, and Cl-. The device consists of an array of seven solid microneedles externally modified to provide six indicator electrodes, each selective for a different ion, and a common reference electrode, all integrated into a wearable patch read in a potentiometric mode. We show in vitro measurements at the expected clinical levels, resulting in a fast response time, excellent reversibility and repeatability, and adequate selectivity. Close-to-Nernstian sensitivity, sufficient stability and resiliency to skin penetration guarantee the sensor's success in transdermal measurements, which we demonstrate through ex vivo (with pieces of rat skin) and in vivo (on-body measurements in rats) tests. Accuracy is evaluated by comparison with gold standard techniques to characterize collected dermal fluid, blood, and serum. In the past, interstitial fluid (ISF) analysis has been challenging due to difficult sample collection and analysis. For ions, this has resulted in extrapolations from blood concentrations (invasive tests) rather than pure measurements in ISF. The developed microneedle patch is a relevant analytical tool to address this information gap.
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Affiliation(s)
- Águeda Molinero-Fernández
- Department
of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology
and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44Stockholm, Sweden
| | - Ana Casanova
- Department
of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology
and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44Stockholm, Sweden
| | - Qianyu Wang
- Department
of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology
and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44Stockholm, Sweden
| | - María Cuartero
- UCAM-SENS, Universidad Católica San Antonio de Murcia,
UCAM HiTech, Avda. Andres
Hernandez Ros 1, 30107Murcia, Spain,Department
of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology
and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44Stockholm, Sweden,
| | - Gastón A. Crespo
- UCAM-SENS, Universidad Católica San Antonio de Murcia,
UCAM HiTech, Avda. Andres
Hernandez Ros 1, 30107Murcia, Spain,Department
of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology
and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44Stockholm, Sweden,
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6
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Zhao L, Zhang C, Abu‐Ershaid JM, Li M, Li Y, Naser Y, Dai X, Abbate MTA, Donnelly RF. Smart Responsive Microarray Patches for Transdermal Drug Delivery and Biological Monitoring. Adv Healthc Mater 2021; 10:e2100996. [PMID: 34449129 DOI: 10.1002/adhm.202100996] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/15/2021] [Indexed: 12/12/2022]
Abstract
Traditional drug delivery routes possess various disadvantages which make them unsuitable for certain population groups, or indeed unsuitable for drugs with certain physicochemical properties. As a result, a variety of alternative drug delivery routes have been explored in recent decades, including transdermal drug delivery. One of the most promising novel transdermal drug delivery technologies is a microarray patch (MAP), which can bypass the outermost skin barrier and deliver drugs directly into the viable epidermis and dermis. Unlike traditional MAPs which release loaded cargo simultaneously upon insertion into the skin, stimuli responsive MAPs based on biological stimuli are able to precisely release the drug in response to the need for additional doses. Thus, smart MAPs that are only responsive to certain external stimuli are highly desirable, as they provide safer and more efficient drug delivery. In addition to drug delivery, they can also be used for biological monitoring, which further expands their applications.
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Affiliation(s)
- Li Zhao
- School of Pharmacy Queen's University Belfast 97 Lisburn Road Belfast BT9 7BL UK
| | - Chunyang Zhang
- School of Pharmacy Queen's University Belfast 97 Lisburn Road Belfast BT9 7BL UK
| | | | - Mingshan Li
- School of Pharmacy Queen's University Belfast 97 Lisburn Road Belfast BT9 7BL UK
| | - Yaocun Li
- School of Pharmacy Queen's University Belfast 97 Lisburn Road Belfast BT9 7BL UK
| | - Yara Naser
- School of Pharmacy Queen's University Belfast 97 Lisburn Road Belfast BT9 7BL UK
| | - Xianbing Dai
- School of Pharmacy Queen's University Belfast 97 Lisburn Road Belfast BT9 7BL UK
| | - Marco T. A. Abbate
- School of Pharmacy Queen's University Belfast 97 Lisburn Road Belfast BT9 7BL UK
| | - Ryan F. Donnelly
- School of Pharmacy Queen's University Belfast 97 Lisburn Road Belfast BT9 7BL UK
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7
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García-Guzmán JJ, Pérez-Ràfols C, Cuartero M, Crespo GA. Toward In Vivo Transdermal pH Sensing with a Validated Microneedle Membrane Electrode. ACS Sens 2021; 6:1129-1137. [PMID: 33566575 PMCID: PMC8023800 DOI: 10.1021/acssensors.0c02397] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 02/01/2021] [Indexed: 12/11/2022]
Abstract
We present herein the most complete characterization of microneedle (MN) potentiometric sensors for pH transdermal measurements for the time being. Initial in vitro assessment demonstrated suitable analytical performances (e.g., Nernstian slope, linear range of response from 8.5 to 5.0, and fast response time) in both buffer media and artificial interstitial fluid (ISF). Excellent repeatability and reproducibility together with adequate selectivity and resiliency facilitate the appropriateness of the new pH MN sensor for transdermal ISF analysis in healthcare. The ability to resist skin insertions was evaluated in several ex vivo setups using three different animal skins (i.e., chicken, pork, and rat). The developed pH MN sensor was able to withstand from 5 to 10 repetitive insertions in all the skins considered with a minimal change in the calibration graph (<3% variation in both slope and intercept after the insertions). Ex vivo pH measurements were validated by determining the pH with the MN sensor and a commercial pH electrode in chicken skin portions previously conditioned at several pH values, obtaining excellent results with an accuracy of <1% and a precision of <2% in all cases. Finally, pH MN sensors were applied for the very first time to transdermal measurements in rats together with two innovative validation procedures: (i) measuring subcutaneous pH directly with a commercial pH microelectrode and (ii) collecting ISF using hollow MNs and then the pH measurement of the sample with the pH microelectrode. The pH values obtained with pH MN sensors were statistically more similar to subcutaneous measurements, as inferred by a paired sample t-test at 95% of confidence level. Conveniently, the validation approaches could be translated to other analytes that are transdermally measured with MN sensors.
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Affiliation(s)
- Juan José García-Guzmán
- Department of Chemistry, School of
Engineering Science in Chemistry, Biochemistry and Health, Royal Institute of Technology, KTH, Teknikringen 30, SE-100 44 Stockholm, Sweden
| | - Clara Pérez-Ràfols
- Department of Chemistry, School of
Engineering Science in Chemistry, Biochemistry and Health, Royal Institute of Technology, KTH, Teknikringen 30, SE-100 44 Stockholm, Sweden
| | - María Cuartero
- Department of Chemistry, School of
Engineering Science in Chemistry, Biochemistry and Health, Royal Institute of Technology, KTH, Teknikringen 30, SE-100 44 Stockholm, Sweden
| | - Gastón A. Crespo
- Department of Chemistry, School of
Engineering Science in Chemistry, Biochemistry and Health, Royal Institute of Technology, KTH, Teknikringen 30, SE-100 44 Stockholm, Sweden
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8
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García-Guzmán JJ, Pérez-Ràfols C, Cuartero M, Crespo GA. Microneedle based electrochemical (Bio)Sensing: Towards decentralized and continuous health status monitoring. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116148] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Ullah A, Choi HJ, Jang M, An S, Kim GM. Smart Microneedles with Porous Polymer Layer for Glucose-Responsive Insulin Delivery. Pharmaceutics 2020; 12:E606. [PMID: 32629825 PMCID: PMC7407179 DOI: 10.3390/pharmaceutics12070606] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/11/2020] [Accepted: 06/26/2020] [Indexed: 12/25/2022] Open
Abstract
A closed-loop system imitating the function of pancreatic cells, connected to microneedles (MNs) that automatically "release" insulin in response to the blood glucose (BG) levels would be highly satisfactory for improving the quality of life and health for diabetes patients. This paper describes an easy, fast and simple technique of coating a porous polymer layer on stainless steel (SS) MNs that release insulin in a glucose-responsive fashion. It was fabricated by sealing insulin, sodium bicarbonate (a pH-sensitive element [NaHCOз]) and glucose oxidase (glucose-specific enzymes [GOx]) into the pores of a porous polymer coating. Glucose can passively diffuse into the pores and become oxidized to gluconic acid by GOx, thereby causing a decrease in local pH. The subsequent reaction of protons with NaHCOз forms carbon dioxide (CO2) which creates pressure inside the pores, thereby rupturing the thin polymer film and releasing the encapsulated insulin. Field emission scanning electron microscopy (FE-SEM) images displayed that upon the exposure of MNs to glucose-free phosphate buffer saline (PBS) with pH 7.4, the pores of the porous MNs were closed, while in MNs exposed to a hyperglycemic glucose level, the pores were opened and the thin film burst. These MNs demonstrated both in vitro (in porcine skin and PBS) and in vivo (in diabetic rats) glucose-mediated insulin release under hyperglycemic conditions with rapid responsiveness. This study validated that the release of insulin from porous MNs was effectively correlated with glucose concentration.
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Affiliation(s)
- Asad Ullah
- School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Korea; (A.U.); (H.J.C.)
| | - Hye Jin Choi
- School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Korea; (A.U.); (H.J.C.)
| | - Mijin Jang
- Daegu Gyeongbuk Medical Innovation Foundation, Laboratory Animal Center, Daegu 41061, Korea; (M.J.); (S.A.)
| | - Sanghyun An
- Daegu Gyeongbuk Medical Innovation Foundation, Laboratory Animal Center, Daegu 41061, Korea; (M.J.); (S.A.)
| | - Gyu Man Kim
- School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Korea; (A.U.); (H.J.C.)
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Doi K, Asano N, Kawano S. Development of glass micro-electrodes for local electric field, electrical conductivity, and pH measurements. Sci Rep 2020; 10:4110. [PMID: 32139704 PMCID: PMC7058011 DOI: 10.1038/s41598-020-60713-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 02/14/2020] [Indexed: 01/25/2023] Open
Abstract
In micro- and nanofluidic devices, liquid flows are often influenced by ionic currents generated by electric fields in narrow channels, which is an electrokinetic phenomenon. Various technologies have been developed that are analogous to semiconductor devices, such as diodes and field effect transistors. On the other hand, measurement techniques for local electric fields in such narrow channels have not yet been established. In the present study, electric fields in liquids are locally measured using glass micro-electrodes with 1-μm diameter tips, which are constructed by pulling a glass tube. By scanning a liquid poured into a channel by glass micro-electrodes, the potential difference in a liquid can be determined with a spatial resolution of the size of the glass tip. As a result, the electrical conductivity of sample solutions can be quantitatively evaluated. Furthermore, combining two glass capillaries filled with buffer solutions of different concentrations, an ionic diode that rectifies the proton conduction direction is constructed, and the possibility of pH measurement is also demonstrated. Under constant-current conditions, pH values ranging from 1.68 to 9.18 can be determined more quickly and stably than with conventional methods that depend on the proton selectivity of glass electrodes under equilibrium conditions.
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Affiliation(s)
- Kentaro Doi
- Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan.
| | - Naoki Asano
- Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Satoyuki Kawano
- Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan.
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11
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Liu GS, Kong Y, Wang Y, Luo Y, Fan X, Xie X, Yang BR, Wu MX. Microneedles for transdermal diagnostics: Recent advances and new horizons. Biomaterials 2020; 232:119740. [PMID: 31918227 PMCID: PMC7432994 DOI: 10.1016/j.biomaterials.2019.119740] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 12/21/2019] [Accepted: 12/25/2019] [Indexed: 12/16/2022]
Abstract
Point-of-care testing (POCT), defined as the test performed at or near a patient, has been evolving into a complement to conventional laboratory diagnosis by continually providing portable, cost-effective, and easy-to-use measurement tools. Among them, microneedle-based POCT devices have gained increasing attention from researchers due to the glorious potential for detecting various analytes in a minimally invasive manner. More recently, a novel synergism between microneedle and wearable technologies is expanding their detection capabilities. Herein, we provide an overview on the progress in microneedle-based transdermal biosensors. It covers all the main aspects of the field, including design philosophy, material selection, and working mechanisms as well as the utility of the devices. We also discuss lessons from the past, challenges of the present, and visions for the future on translation of these state-of-the-art technologies from the bench to the bedside.
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Affiliation(s)
- Gui-Shi Liu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, College of Science & Engineering, Jinan University, Guangzhou, 510632, China
| | - Yifei Kong
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Yensheng Wang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Yunhan Luo
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, College of Science & Engineering, Jinan University, Guangzhou, 510632, China
| | - Xudong Fan
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Xi Xie
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou, 510006, China.
| | - Bo-Ru Yang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou, 510006, China.
| | - Mei X Wu
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA.
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12
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Broza YY, Zhou X, Yuan M, Qu D, Zheng Y, Vishinkin R, Khatib M, Wu W, Haick H. Disease Detection with Molecular Biomarkers: From Chemistry of Body Fluids to Nature-Inspired Chemical Sensors. Chem Rev 2019; 119:11761-11817. [DOI: 10.1021/acs.chemrev.9b00437] [Citation(s) in RCA: 164] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yoav Y. Broza
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 3200003, Israel
| | - Xi Zhou
- School of Natural and Applied Sciences, Northwestern Polytechnical University, Xi’an 710072, P.R. China
| | - Miaomiao Yuan
- The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518033, P.R. China
| | - Danyao Qu
- School of Advanced Materials and Nanotechnology, Interdisciplinary Research Center of Smart Sensors, Xidian University, Shaanxi 710126, P.R. China
| | - Youbing Zheng
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 3200003, Israel
| | - Rotem Vishinkin
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 3200003, Israel
| | - Muhammad Khatib
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 3200003, Israel
| | - Weiwei Wu
- School of Advanced Materials and Nanotechnology, Interdisciplinary Research Center of Smart Sensors, Xidian University, Shaanxi 710126, P.R. China
| | - Hossam Haick
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 3200003, Israel
- School of Advanced Materials and Nanotechnology, Interdisciplinary Research Center of Smart Sensors, Xidian University, Shaanxi 710126, P.R. China
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13
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Zhang Y, Chai D, Gao M, Xu B, Jiang G. Thermal ablation of separable microneedles for transdermal delivery of metformin on diabetic rats. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1517347] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yang Zhang
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Hangzhou, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou, China
| | - Dongning Chai
- Xiamen Lin Qiaozhi Women’s and Children’s Hospital, Medical College, Xiamen University, Xiamen, Fujian, China
| | - Mengyue Gao
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, China
| | - Bin Xu
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Hangzhou, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou, China
| | - Guohua Jiang
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Hangzhou, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou, China
- Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, China
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14
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Zhang Y, Wang D, Gao M, Xu B, Zhu J, Yu W, Liu D, Jiang G. Separable Microneedles for Near-Infrared Light-Triggered Transdermal Delivery of Metformin in Diabetic Rats. ACS Biomater Sci Eng 2018; 4:2879-2888. [DOI: 10.1021/acsbiomaterials.8b00642] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Zhang
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology, Hangzhou, Zhejiang 310018, China
- Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Danfeng Wang
- Department of Gynecology and Obstetrics, Tonglu Maternal and Child Health Care Hospital, Tonglu, Zhejiang 311500, China
| | - Mengyue Gao
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Bin Xu
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology, Hangzhou, Zhejiang 310018, China
- Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Jiangying Zhu
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology, Hangzhou, Zhejiang 310018, China
- Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Weijiang Yu
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology, Hangzhou, Zhejiang 310018, China
- Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Depeng Liu
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology, Hangzhou, Zhejiang 310018, China
- Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Guohua Jiang
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology, Hangzhou, Zhejiang 310018, China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Hangzhou, Zhejiang 310018, China
- Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
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15
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Xu B, Cao Q, Zhang Y, Yu W, Zhu J, Liu D, Jiang G. Microneedles Integrated with ZnO Quantum-Dot-Capped Mesoporous Bioactive Glasses for Glucose-Mediated Insulin Delivery. ACS Biomater Sci Eng 2018; 4:2473-2483. [DOI: 10.1021/acsbiomaterials.8b00626] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Bin Xu
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou, Zhejiang 310018, China
| | - Qinying Cao
- Shijiazhuang Obstetrics and Gynecology Hospital, Shijiazhuang, Hebei 050011, China
| | - Yang Zhang
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou, Zhejiang 310018, China
| | - Weijiang Yu
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou, Zhejiang 310018, China
| | - Jiangying Zhu
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou, Zhejiang 310018, China
| | - Depeng Liu
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou, Zhejiang 310018, China
| | - Guohua Jiang
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou, Zhejiang 310018, China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Hangzhou, Zhejiang 310018, China
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16
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Cork SC, Eftekhar A, Mirza KB, Zuliani C, Nikolic K, Gardiner JV, Bloom SR, Toumazou C. Extracellular pH monitoring for use in closed-loop vagus nerve stimulation. J Neural Eng 2017; 15:016001. [DOI: 10.1088/1741-2552/aa8239] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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17
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Booth MA, Gowers SAN, Leong CL, Rogers ML, Samper IC, Wickham AP, Boutelle MG. Chemical Monitoring in Clinical Settings: Recent Developments toward Real-Time Chemical Monitoring of Patients. Anal Chem 2017; 90:2-18. [PMID: 29083872 DOI: 10.1021/acs.analchem.7b04224] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Marsilea A Booth
- Department of Bioengineering, Imperial College London , London, SW7 2AZ, United Kingdom
| | - Sally A N Gowers
- Department of Bioengineering, Imperial College London , London, SW7 2AZ, United Kingdom
| | - Chi Leng Leong
- Department of Bioengineering, Imperial College London , London, SW7 2AZ, United Kingdom
| | - Michelle L Rogers
- Department of Bioengineering, Imperial College London , London, SW7 2AZ, United Kingdom
| | - Isabelle C Samper
- Department of Bioengineering, Imperial College London , London, SW7 2AZ, United Kingdom
| | - Aidan P Wickham
- Department of Bioengineering, Imperial College London , London, SW7 2AZ, United Kingdom
| | - Martyn G Boutelle
- Department of Bioengineering, Imperial College London , London, SW7 2AZ, United Kingdom
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18
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Mirza KB, Zuliani C, Hou B, Ng FS, Peters NS, Toumazou C. Injection moulded microneedle sensor for real-time wireless pH monitoring. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2017; 2017:189-192. [PMID: 29059842 DOI: 10.1109/embc.2017.8036794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This paper describes the development of an array of individually addressable pH sensitive microneedles using injection moulding and their integration within a portable device for real-time wireless recording of pH distributions in biological samples. The fabricated microneedles are subjected to gold patterning followed by electrodeposition of iridium oxide to sensitize them to 0.07 units of pH change. Miniaturised electronics suitable for the sensors readout, analog-to-digital conversion and wireless transmission of the potentiometric data are embodied within the device, enabling it to measure real-time pH of soft biological samples such as muscles. In this paper, real-time recording of the cardiac pH distribution, during ischemia followed by reperfusion cycles in cardiac muscles of male Wistar rats has been demonstrated by using the microneedle array.
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19
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Xu B, Jiang G, Yu W, Liu D, Zhang Y, Zhou J, Sun S, Liu Y. H2O2-Responsive mesoporous silica nanoparticles integrated with microneedle patches for the glucose-monitored transdermal delivery of insulin. J Mater Chem B 2017; 5:8200-8208. [DOI: 10.1039/c7tb02082a] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We successfully developed a microneedle patch system integrated with H2O2-responsive mesoporous silica nanoparticles for the glucose-monitored transdermal delivery of insulin.
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Affiliation(s)
- Bin Xu
- Department of Polymer Materials
- Zhejiang Sci Tech University
- Hangzhou 310018
- China
| | - Guohua Jiang
- Department of Polymer Materials
- Zhejiang Sci Tech University
- Hangzhou 310018
- China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang)
| | - Weijiang Yu
- Department of Polymer Materials
- Zhejiang Sci Tech University
- Hangzhou 310018
- China
| | - Depeng Liu
- Department of Polymer Materials
- Zhejiang Sci Tech University
- Hangzhou 310018
- China
| | - Yang Zhang
- Department of Polymer Materials
- Zhejiang Sci Tech University
- Hangzhou 310018
- China
| | - Junyi Zhou
- Department of Polymer Materials
- Zhejiang Sci Tech University
- Hangzhou 310018
- China
| | - Shiqing Sun
- Department of Polymer Materials
- Zhejiang Sci Tech University
- Hangzhou 310018
- China
| | - Yongkun Liu
- Department of Polymer Materials
- Zhejiang Sci Tech University
- Hangzhou 310018
- China
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