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Pang Y, Li Y, Chen K, Wu M, Zhang J, Sun Y, Xu Y, Wang X, Wang Q, Ning X, Kong D. Porous Microneedles Through Direct Ink Drawing with Nanocomposite Inks for Transdermal Collection of Interstitial Fluid. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305838. [PMID: 38258379 DOI: 10.1002/smll.202305838] [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: 07/11/2023] [Revised: 11/19/2023] [Indexed: 01/24/2024]
Abstract
Interstitial fluid (ISF) is an attractive alternative to regular blood sampling for health checks and disease diagnosis. Porous microneedles (MNs) are well suited for collecting ISF in a minimally invasive manner. However, traditional methods of molding MNs from microfabricated templates involve prohibitive fabrication costs and fixed designs. To overcome these limitations, this study presents a facile and economical additive manufacturing approach to create porous MNs. Compared to traditional layerwise build sequences, direct ink drawing with nanocomposite inks can define sharp MNs with tailored shapes and achieve vastly improved fabrication efficiency. The key to this fabrication strategy is the yield-stress fluid ink that is easily formulated by dispersing silica nanoparticles into the cellulose acetate polymer solution. As-printed MNs are solidified into interconnected porous microstructure inside a coagulation bath of deionized water. The resulting MNs exhibit high mechanical strength and high porosity. This approach also allows porous MNs to be easily integrated on various substrates. In particular, MNs on filter paper substrates are highly flexible to rapidly collect ISF on non-flat skin sites. The extracted ISF is used for quantitative analysis of biomarkers, including glucose, = calcium ions, and calcium ions. Overall, the developments allow facile fabrication of porous MNs for transdermal diagnosis and therapy.
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Affiliation(s)
- Yushuang Pang
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210023, China
- State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, 210023, China
| | - Yanyan Li
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210023, China
- State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, 210023, China
| | - Kerong Chen
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210023, China
- National Laboratory of Solid State Microstructure, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing, 210093, China
| | - Ming Wu
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jiaxue Zhang
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210023, China
- State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, 210023, China
| | - Yuping Sun
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210023, China
- State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, 210023, China
| | - Yurui Xu
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210023, China
- National Laboratory of Solid State Microstructure, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing, 210093, China
| | - Xiaoliang Wang
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Qian Wang
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210023, China
- State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, 210023, China
| | - Xinghai Ning
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210023, China
- National Laboratory of Solid State Microstructure, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing, 210093, China
| | - Desheng Kong
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210023, China
- State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, 210023, China
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2
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Carnero B, Radziunas-Salinas Y, Rodiño-Janeiro BK, Ballesta SV, Flores-Arias MT. Versatile hybrid technique for passive straight micromixer manufacturing by combining pulsed laser ablation, stereolithographic 3D printing and computational fluid dynamics. LAB ON A CHIP 2024; 24:2669-2682. [PMID: 38651171 DOI: 10.1039/d4lc00009a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
There is a need to develop new and versatile fabrication methods to achieve efficient mixing of fluids in microfluidic channels using microstructures. This work presents a new technique that combines stereolithography (SLA) and pulsed laser ablation (PLA) to manufacture a straight micromixer for uniform mixing of two samples. Computational fluid dynamics (CFD) simulation is performed to deeply understand the physical mechanisms of the process. The results suggest that this new optical technique holds the potential to become a versatile hybrid technique for manufacturing remarkable mixing microfluidic devices.
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Affiliation(s)
- Bastián Carnero
- Photonics4Life Research Group, Applied Physics Department, Facultade de Física, iMATUS, Universidade de Santiago de Compostela, Campus Vida, E-15782 Santiago de Compostela, Spain.
- BFlow SL, Edificio Emprendia, Campus Vida, Santiago de Compostela, E-15706, Spain
| | - Yago Radziunas-Salinas
- Photonics4Life Research Group, Applied Physics Department, Facultade de Física, iMATUS, Universidade de Santiago de Compostela, Campus Vida, E-15782 Santiago de Compostela, Spain.
| | | | - Sylvana Varela Ballesta
- BFlow SL, Edificio Emprendia, Campus Vida, Santiago de Compostela, E-15706, Spain
- Departament d'Enginyeria Mecànica, Universitat Rovira i Virgili, Tarragona, E-43007, Spain
| | - M Teresa Flores-Arias
- Photonics4Life Research Group, Applied Physics Department, Facultade de Física, iMATUS, Universidade de Santiago de Compostela, Campus Vida, E-15782 Santiago de Compostela, Spain.
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Borges MHR, Nagay BE, Costa RC, Souza JGS, Mathew MT, Barão VAR. Recent advances of polypyrrole conducting polymer film for biomedical application: Toward a viable platform for cell-microbial interactions. Adv Colloid Interface Sci 2023; 314:102860. [PMID: 36931199 DOI: 10.1016/j.cis.2023.102860] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/04/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023]
Abstract
Polypyrrole (PPy) is one of the most studied conductive polymers due to its electrical conductivity and biological properties, which drive the possibility of numerous applications in the biomedical area. The physical-chemical features of PPy allow the manufacture of biocompatible devices, enhancing cell adhesion and proliferation. Furthermore, owing to the electrostatic interactions between the negatively charged bacterial cell wall and the positive charges in the polymer structure, PPy films can perform an effective antimicrobial activity. PPy is also frequently associated with biocompatible agents and antimicrobial compounds to improve the biological response. Thus, this comprehensive review appraised the available evidence regarding the PPy-based films deposited on metallic implanted devices for biomedical applications. We focus on understanding key concepts that could influence PPy attributes regarding antimicrobial effect and cell behavior under in vitro and in vivo settings. Furthermore, we unravel the several agents incorporated into the PPy film and strategies to improve its functionality. Our findings suggest that incorporating other elements into the PPy films, such as antimicrobial agents, biomolecules, and other biocompatible polymers, may improve the biological responses. Overall, the basic properties of PPy, when combined with other composites, electrostimulation techniques, or surface treatment methods, offer great potential in biocompatibility and/or antimicrobial activities. However, challenges in synthesis standardization and potential limitations such as low adhesion and mechanical strength of the film must be overcome to improve and broaden the application of PPy film in biomedical devices.
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Affiliation(s)
- Maria H R Borges
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
| | - Bruna E Nagay
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
| | - Raphael C Costa
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
| | - João Gabriel S Souza
- Dental Research Division, Guarulhos University (UNG), Guarulhos, Sāo Paulo 07023-070, Brazil; Dental Science School (Faculdade de Ciências Odontológicas - FCO), Montes Claros, Minas Gerais 39401-303, Brazil
| | - Mathew T Mathew
- Department of Biomedical Sciences, University of Illinois, College of Medicine, Rockford, IL 61107, USA
| | - Valentim A R Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil.
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Wang S, Liu Y, Zhu A, Tian Y. In Vivo Electrochemical Biosensors: Recent Advances in Molecular Design, Electrode Materials, and Electrochemical Devices. Anal Chem 2023; 95:388-406. [PMID: 36625112 DOI: 10.1021/acs.analchem.2c04541] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Electrochemical biosensors provide powerful tools for dissecting the dynamically changing neurochemical signals in the living brain, which contribute to the insight into the physiological and pathological processes of the brain, due to their high spatial and temporal resolutions. Recent advances in the integration of in vivo electrochemical sensors with cross-disciplinary advances have reinvigorated the development of in vivo sensors with even better performance. In this Review, we summarize the recent advances in molecular design, electrode materials, and electrochemical devices for in vivo electrochemical sensors from molecular to macroscopic dimensions, highlighting the methods to obtain high performance for fulfilling the requirements for determination in the complex brain through flexible and smart design of molecules, materials, and devices. Also, we look forward to the development of next-generation in vivo electrochemical biosensors.
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Affiliation(s)
- Shidi Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Yuandong Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Anwei Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
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Song Q, Li Q, Yan J, Song Y. Echem methods and electrode types of the current in vivo electrochemical sensing. RSC Adv 2022; 12:17715-17739. [PMID: 35765338 PMCID: PMC9199085 DOI: 10.1039/d2ra01273a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 06/02/2022] [Indexed: 11/21/2022] Open
Abstract
For a long time, people have been eager to realize continuous real-time online monitoring of biological compounds. Fortunately, in vivo electrochemical biosensor technology has greatly promoted the development of biological compound detection. This article summarizes the existing in vivo electrochemical detection technologies into two categories: microdialysis (MD) and microelectrode (ME). Then we summarized and discussed the electrode surface time, pollution resistance, linearity and the number of instances of simultaneous detection and analysis, the composition and characteristics of the sensor, and finally, we also predicted and prospected the development of electrochemical technology and sensors in vivo.
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Affiliation(s)
- Qiuye Song
- The Affiliated Zhangjiagang Hospital of Soochow University Zhangjiagang 215600 Jiangsu People's Republic of China +86 791 87802135 +86 791 87802135
| | - Qianmin Li
- Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine 1688 Meiling Road Nanchang 330006 China
| | - Jiadong Yan
- The Affiliated Zhangjiagang Hospital of Soochow University Zhangjiagang 215600 Jiangsu People's Republic of China +86 791 87802135 +86 791 87802135
| | - Yonggui Song
- Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine 1688 Meiling Road Nanchang 330006 China.,Key Laboratory of Pharmacodynamics and Safety Evaluation, Health Commission of Jiangxi Province, Nanchang Medical College 1688 Meiling Road Nanchang 330006 China
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6
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Mihai D, Stefan D, Stegaru D, Bernea G, Vacaroiu I, Papacocea T, Lupușoru M, Nica A, Stiru O, Dragos D, Olaru O. Continuous glucose monitoring devices: A brief presentation (Review). Exp Ther Med 2021; 23:174. [PMID: 35069855 PMCID: PMC8764584 DOI: 10.3892/etm.2021.11097] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 11/05/2021] [Indexed: 11/29/2022] Open
Abstract
As diabetes prevalence is continuously increasing, better management is needed to achieve blood glucose control, in order to prevent complications and lessen the burden of this disease. Since the first measurement of glycosuria at the beginning of the 1900s', huge advances were made in monitoring glycemia. Continuous glucose monitoring systems revolutionized diabetes management, especially for patients with type 1 diabetes. Avoiding glycemic variability and maintaining optimal glycemic control is crucial for the evolution of patients with type 1 diabetes. The usefulness of glycemic monitoring devices can be extended to patients with type 2 diabetes. It is also important to note that in those patients at risk of developing high glycemic variability (e.g. patients with advanced chronic kidney disease), continuous glycemic monitoring may improve their prognosis. These monitoring systems can be classified according to the analytical method, the degree of invasiveness, the data availability and the mode of usage. The technology is constantly improving in bioanalytical performance, biocompatibility, length of wearing time, safety and clinical features. The aim of this review was to briefly present the main characteristics of glucose biosensors, glucose monitoring systems and their clinically utility.
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Affiliation(s)
- Doina Mihai
- Discipline of Diabetes, Nutrition and Metabolic Diseases, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, ‘N. C. Paulescu’ Institute of Diabetes, Nutrition and Metabolic Diseases, Bucharest 020021, Romania
| | - Diana Stefan
- Discipline of Diabetes, Nutrition and Metabolic Diseases, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, ‘N. C. Paulescu’ Institute of Diabetes, Nutrition and Metabolic Diseases, Bucharest 020021, Romania
| | - Daniela Stegaru
- Discipline of Diabetes, Nutrition and Metabolic Diseases, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, ‘N. C. Paulescu’ Institute of Diabetes, Nutrition and Metabolic Diseases, Bucharest 020021, Romania
| | - Georgiana Bernea
- ‘N. C. Paulescu’ Institute of Diabetes, Nutrition and Metabolic Diseases, Diabetes Department II, Bucharest 020474, Romania
| | - Ileana Vacaroiu
- Department of Nephrology, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 020021, Romania
| | - Toma Papacocea
- Department of Neurosurgery, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 020021, Romania
| | - Mircea Lupușoru
- Discipline of Physiology, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 020021, Romania
| | - Adriana Nica
- Department of Orthopedics, Anesthesia Intensive Care Unit, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 020021, Romania
| | - Ovidiu Stiru
- Department of Cardiovascular Surgery, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 020021, Romania
| | - Dorin Dragos
- Department of Medical Semiology, Discipline of Internal Medicine I and Nephrology, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 020021, Romania
| | - Octavian Olaru
- Department of Obstetrics and Gynecology, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 020021, Romania
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7
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In vivo real-time monitoring of anti-factor Xa level using a microdialysis-coupled microfluidic device. TALANTA OPEN 2021. [DOI: 10.1016/j.talo.2021.100059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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8
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Zhan X, Wu H, Wu H. Joint Synovial Fluid Metabolomics Method to Decipher the Metabolic Mechanisms of Adjuvant Arthritis and Geniposide Intervention. J Proteome Res 2020; 19:3769-3778. [DOI: 10.1021/acs.jproteome.0c00300] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xiang Zhan
- The College of Pharmacy of Anhui University of Chinese Medicine, Hefei 230012, China
- Key Laboratory of Xin’an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei 230012, China
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei 230012, China
| | - Huan Wu
- The College of Pharmacy of Anhui University of Chinese Medicine, Hefei 230012, China
- Key Laboratory of Xin’an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei 230012, China
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei 230012, China
| | - Hong Wu
- The College of Pharmacy of Anhui University of Chinese Medicine, Hefei 230012, China
- Key Laboratory of Xin’an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei 230012, China
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei 230012, China
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9
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Zhu J, Zhou X, Kim HJ, Qu M, Jiang X, Lee K, Ren L, Wu Q, Wang C, Zhu X, Tebon P, Zhang S, Lee J, Ashammakhi N, Ahadian S, Dokmeci MR, Gu Z, Sun W, Khademhosseini A. Gelatin Methacryloyl Microneedle Patches for Minimally Invasive Extraction of Skin Interstitial Fluid. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1905910. [PMID: 32101371 PMCID: PMC7182487 DOI: 10.1002/smll.201905910] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 01/23/2020] [Indexed: 05/18/2023]
Abstract
The extraction of interstitial fluid (ISF) from skin using microneedles (MNs) has attracted growing interest in recent years due to its potential for minimally invasive diagnostics and biosensors. ISF collection by absorption into a hydrogel MN patch is a promising way that requires the materials to have outstanding swelling ability. Here, a gelatin methacryloyl (GelMA) patch is developed with an 11 × 11 array of MNs for minimally invasive sampling of ISF. The properties of the patch can be tuned by altering the concentration of the GelMA prepolymer and the crosslinking time; patches are created with swelling ratios between 293% and 423% and compressive moduli between 3.34 MPa and 7.23 MPa. The optimized GelMA MN patch demonstrates efficient extraction of ISF. Furthermore, it efficiently and quantitatively detects glucose and vancomycin in ISF in an in vivo study. This minimally invasive approach of extracting ISF with a GelMA MN patch has the potential to complement blood sampling for the monitoring of target molecules from patients.
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Affiliation(s)
- Jixiang Zhu
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 511436, China
| | - Xingwu Zhou
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Han-Jun Kim
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Moyuan Qu
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Xing Jiang
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - KangJu Lee
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Li Ren
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Qingzhi Wu
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Canran Wang
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Xunmin Zhu
- Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 511436, China
| | - Peyton Tebon
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Shiming Zhang
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Junmin Lee
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Nureddin Ashammakhi
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Samad Ahadian
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Mehmet Remzi Dokmeci
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Zhen Gu
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA90095, USA
- California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA90095, USA
| | - Wujin Sun
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ali Khademhosseini
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA90095, USA
- California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA90095, USA
- Center of Nanotechnology, Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul 143701, Republic of Korea
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10
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3D-printed CuO nanoparticle–functionalized flow reactor enables online fluorometric monitoring of glucose. Mikrochim Acta 2019; 186:404. [DOI: 10.1007/s00604-019-3512-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 05/16/2019] [Indexed: 12/18/2022]
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11
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Kiyatkin EA. Central and Peripheral Mechanisms Underlying Physiological and Drug-Induced Fluctuations in Brain Oxygen in Freely-Moving Rats. Front Integr Neurosci 2018; 12:44. [PMID: 30333733 PMCID: PMC6176053 DOI: 10.3389/fnint.2018.00044] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 09/11/2018] [Indexed: 02/05/2023] Open
Abstract
The goal of this work is to consider physiological fluctuations in brain oxygen levels and its changes induced by opioid drugs. This review article presents, as a comprehensive story, the most important findings obtained in our laboratory by using high-speed amperometry with oxygen sensors in awake, freely moving rats; most of these findings were separately published elsewhere. First, we show that oxygen levels in the nucleus accumbens (NAc) phasically increase following exposure to natural arousing stimuli. Since accumbal neurons are excited by arousing stimuli and NAc oxygen levels increase following glutamate (GLU) microinjections in the NAc, local neural activation with subsequent cerebral vasodilation appears to mediate the rapid oxygen increases induced by arousing stimuli. While it is established that intra-cerebral entry of oxygen depends on brain metabolism, physiological increases in NAc oxygen occurred more rapidly than increases in metabolic activity as assessed by intra-brain heat production. Therefore, due to neural activation and the subsequent rise in local cerebral blood flow (CBF), the brain receives more oxygen in advance of its metabolic requirement, thus preventing potential metabolic deficits. In contrast to arousing stimuli, three opioid drugs tested (heroin, fentanyl and oxycodone) decrease oxygen levels. As confirmed by our recordings in the subcutaneous space, a densely vascularized location with no metabolic activity of its own, these decreases result from respiratory depression with subsequent fall in blood oxygen levels. While respiratory depression was evident for all tested drugs, heroin was ~6-fold more potent than oxycodone, and fentanyl was 10-20-fold more potent than heroin. Changes in brain oxygen induced by respiratory depression appear to be independent of local vascular and blood flow responses, which are triggered, via neuro-vascular coupling, by the neuronal effects of opioid drugs.
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Affiliation(s)
- Eugene A Kiyatkin
- In-Vivo Electrophysiology Unit, Behavioral Neuroscience Branch, National Institute on Drug Abuse-Intramural Research Program, National Institutes of Health, Department of Health and Human Services (DHHS), Baltimore, MD, United States
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Fentanyl-Induced Brain Hypoxia Triggers Brain Hyperglycemia and Biphasic Changes in Brain Temperature. Neuropsychopharmacology 2018; 43:810-819. [PMID: 28849778 PMCID: PMC5809788 DOI: 10.1038/npp.2017.181] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 07/20/2017] [Accepted: 08/09/2017] [Indexed: 12/28/2022]
Abstract
Fentanyl is a potent synthetic opioid used extensively in humans for general anesthesia and analgesia. Fentanyl has emerged as a recreational drug, often in combination with heroin, and can result in lethality during overdose. Fentanyl is well characterized as an anesthetic, but the basic physiological effects of fentanyl in the brain when taken as a drug of abuse are largely unknown. We used high-speed amperometry in freely moving rats to examine the effects of intravenous fentanyl at doses within the range of possible human intake (3-40 μg/kg) on oxygen and glucose levels in nucleus accumbens (NAc). Fentanyl induced a rapid, dose-dependent decrease in NAc oxygen followed by a more delayed and prolonged increase in NAc glucose. Fentanyl induced similar oxygen decreases in the basolateral amygdala, indicating that brain hypoxia could be a generalized phenomenon. We used oxygen recordings in the subcutaneous space to confirm that fentanyl-induced brain hypoxia results from decreases in blood oxygen levels caused by drug-induced respiratory depression. Temperature recordings in the NAc, muscle, and skin showed that fentanyl induces biphasic changes in brain temperature, with an initial decrease that results primarily from peripheral vasodilation, and a subsequent increase driven by metabolic brain activation. The initial vasodilation appears caused by respiratory depression-induced hypoxia and a subsequent rise in CO2 that drives fentanyl-induced increases in NAc glucose. Together, these data suggest that fentanyl-induced respiratory depression triggers brain hypoxia and subsequent hyperglycemia, both of which precede slower changes in brain temperature and metabolic brain activity.
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Wang WY, Wang W, Wu H, Li SP, Wang R, Dai L, Zhang ZR, Fu J, Deng R, Li F. Microdialysis sampling combined with ultra-high-performance liquid chromatography-tandem mass spectrometry for the determination of geniposide in dialysate of joint cavities in adjuvant arthritis rats. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2018; 32:516-522. [PMID: 29315974 DOI: 10.1002/rcm.8056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 12/21/2017] [Accepted: 12/21/2017] [Indexed: 06/07/2023]
Abstract
RATIONALE Microdialysis has been used to detect the concentrations of drugs in tissues. Geniposide (GE), an iridoid glycoside compound, is the main bioactive component of Gardenia jasminoides Ellis fruit. We previously demonstrated that GE could control the activity of cytokines and reduce levels of inflammation in adjuvant arthritis (AA) rats, but the topic of concentration changes over time in the joint synovia of AA is scarcely studied. METHODS In this study, microdialysis technique combined with ultra-high-performance liquid chromatography-electrospray ionization coupled with tandem mass spectrometry (UHPLC-ESI-MS/MS) was set up and confirmed to assay GE in the dialysate of the joint cavity in AA rats. Mass detection was conducted in multiple reaction monitoring (MRM) mode with negative electro-spray ionization, and Paeoniflorin (Pae) was used as an internal standard (IS). RESULTS A lower limit of quantitation (LLOQ) of 5 ng/mL was found in this method and with good linearity in the range of 5-4000 ng/mL. All the validation data including accuracy, precision, intra and inter-day repeatability and stability meet the requirements. The relative recoveries of GE were determined at approximately 40.01%. CONCLUSIONS The measurements based on microdialysis combined with UHPLC-ESI-MS/MS provide a method for sampling and rapid sensitive analysis of GE in dialysate of joint cavity in AA rats. This method should be considered for future pharmacokinetics studies.
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Affiliation(s)
- Wen-Yu Wang
- College of Pharmacy, Anhui University of Chinese Medicine, Key Laboratory of Modernized Chinese Medicine in Anhui Province, Hefei, Anhui, China
| | - Wei Wang
- College of Pharmacy, Anhui University of Chinese Medicine, Key Laboratory of Modernized Chinese Medicine in Anhui Province, Hefei, Anhui, China
| | - Hong Wu
- College of Pharmacy, Anhui University of Chinese Medicine, Key Laboratory of Modernized Chinese Medicine in Anhui Province, Hefei, Anhui, China
| | - Shu-Ping Li
- College of Pharmacy, Anhui University of Chinese Medicine, Key Laboratory of Modernized Chinese Medicine in Anhui Province, Hefei, Anhui, China
| | - Rong Wang
- College of Pharmacy, Anhui University of Chinese Medicine, Key Laboratory of Modernized Chinese Medicine in Anhui Province, Hefei, Anhui, China
| | - Li Dai
- College of Pharmacy, Anhui University of Chinese Medicine, Key Laboratory of Modernized Chinese Medicine in Anhui Province, Hefei, Anhui, China
| | - Zheng-Rong Zhang
- College of Pharmacy, Anhui University of Chinese Medicine, Key Laboratory of Modernized Chinese Medicine in Anhui Province, Hefei, Anhui, China
| | - Jun Fu
- College of Pharmacy, Anhui University of Chinese Medicine, Key Laboratory of Modernized Chinese Medicine in Anhui Province, Hefei, Anhui, China
| | - Ran Deng
- College of Pharmacy, Anhui University of Chinese Medicine, Key Laboratory of Modernized Chinese Medicine in Anhui Province, Hefei, Anhui, China
| | - Feng Li
- College of Pharmacy, Anhui University of Chinese Medicine, Key Laboratory of Modernized Chinese Medicine in Anhui Province, Hefei, Anhui, China
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Solis E, Cameron-Burr KT, Kiyatkin EA. Rapid Physiological Fluctuations in Nucleus Accumbens Oxygen Levels Induced by Arousing Stimuli: Relationships with Changes in Brain Glucose and Metabolic Neural Activation. Front Integr Neurosci 2017; 11:9. [PMID: 28484378 PMCID: PMC5401908 DOI: 10.3389/fnint.2017.00009] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 04/06/2017] [Indexed: 01/01/2023] Open
Abstract
Proper entry of oxygen from arterial blood into the brain is essential for maintaining brain metabolism under normal conditions and during functional neural activation. However, little is known about physiological fluctuations in brain oxygen and their underlying mechanisms. To address this issue, we employed high-speed amperometry with platinum oxygen sensors in freely moving male rats. Recordings were conducted in the nucleus accumbens (NAc), a critical structure for sensorimotor integration. Rats were exposed to arousing stimuli of different nature (brief auditory tone, a 1-min novel object presentation, a 3-min social interaction with a conspecific, and a 3-min tail-pinch). We found that all arousing stimuli increased NAc oxygen levels. Increases were rapid (4–10-s onset latencies), modest in magnitude (1–3 μM or 5%–15% over baseline) and duration (5–20 min), and generally correlated with the arousing potential of each stimulus. Two strategies were used to determine the mechanisms underlying the observed increases in NAc oxygen levels. First, we showed that NAc oxygen levels phasically increase following intra-NAc microinjections of glutamate (GLU) that excite accumbal neurons. Therefore, local neural activation with subsequent local vasodilation is involved in mediating physiological increases in NAc oxygen induced by arousing stimuli. Second, by employing oxygen monitoring in the subcutaneous space, a highly-vascularized area with no metabolic activity, we determined that physiological increases in NAc oxygen also depend on the rise in blood oxygen levels caused by respiratory activation. Due to the co-existence of different mechanisms governing oxygen entry into brain tissue, NAc oxygen responses differ from fluctuations in NAc glucose, which, within a normal behavioral continuum, are regulated exclusively by neuro-vascular coupling due to glucose’s highly stable levels in the blood. Finally, we discuss the relationships between physiological fluctuations in NAc oxygen, glucose and metabolic brain activation assessed by intra-brain heat production.
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Affiliation(s)
- Ernesto Solis
- In-Vivo Electrophysiology Unit, Behavioral Neuroscience Branch, National Institute on Drug Abuse-Intramural Research Program, Department of Health and Human Services, National Institutes of HealthBaltimore, MD, USA
| | - Keaton T Cameron-Burr
- In-Vivo Electrophysiology Unit, Behavioral Neuroscience Branch, National Institute on Drug Abuse-Intramural Research Program, Department of Health and Human Services, National Institutes of HealthBaltimore, MD, USA
| | - Eugene A Kiyatkin
- In-Vivo Electrophysiology Unit, Behavioral Neuroscience Branch, National Institute on Drug Abuse-Intramural Research Program, Department of Health and Human Services, National Institutes of HealthBaltimore, MD, USA
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15
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Chen C, Zhao XL, Li ZH, Zhu ZG, Qian SH, Flewitt AJ. Current and Emerging Technology for Continuous Glucose Monitoring. SENSORS 2017; 17:s17010182. [PMID: 28106820 PMCID: PMC5298755 DOI: 10.3390/s17010182] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/19/2016] [Accepted: 12/20/2016] [Indexed: 12/16/2022]
Abstract
Diabetes has become a leading cause of death worldwide. Although there is no cure for diabetes, blood glucose monitoring combined with appropriate medication can enhance treatment efficiency, alleviate the symptoms, as well as diminish the complications. For point-of-care purposes, continuous glucose monitoring (CGM) devices are considered to be the best candidates for diabetes therapy. This review focuses on current growth areas of CGM technologies, specifically focusing on subcutaneous implantable electrochemical glucose sensors. The superiority of CGM systems is introduced firstly, and then the strategies for fabrication of minimally-invasive and non-invasive CGM biosensors are discussed, respectively. Finally, we briefly outline the current status and future perspective for CGM systems.
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Affiliation(s)
- Cheng Chen
- School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai 201209, China.
| | - Xue-Ling Zhao
- School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai 201209, China.
| | - Zhan-Hong Li
- School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai 201209, China.
| | - Zhi-Gang Zhu
- School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai 201209, China.
| | - Shao-Hong Qian
- Department of Ophthalmology, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai 200231, China.
| | - Andrew J Flewitt
- Electrical Engineering Division, Department of Engineering, University of Cambridge, J J Thomson Avenue, Cambridge CB3 0FA, UK.
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16
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Xiao T, Wu F, Hao J, Zhang M, Yu P, Mao L. In Vivo Analysis with Electrochemical Sensors and Biosensors. Anal Chem 2016; 89:300-313. [DOI: 10.1021/acs.analchem.6b04308] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Tongfang Xiao
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems and Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fei Wu
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems and Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie Hao
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems and Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meining Zhang
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems and Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ping Yu
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems and Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lanqun Mao
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems and Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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17
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A Review on Microdialysis Calibration Methods: the Theory and Current Related Efforts. Mol Neurobiol 2016; 54:3506-3527. [PMID: 27189617 DOI: 10.1007/s12035-016-9929-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 05/03/2016] [Indexed: 10/21/2022]
Abstract
Microdialysis is a sampling technique first introduced in the late 1950s. Although this technique was originally designed to study endogenous compounds in animal brain, it is later modified to be used in other organs. Additionally, microdialysis is not only able to collect unbound concentration of compounds from tissue sites; this technique can also be used to deliver exogenous compounds to a designated area. Due to its versatility, microdialysis technique is widely employed in a number of areas, including biomedical research. However, for most in vivo studies, the concentration of substance obtained directly from the microdialysis technique does not accurately describe the concentration of the substance on-site. In order to relate the results collected from microdialysis to the actual in vivo condition, a calibration method is required. To date, various microdialysis calibration methods have been reported, with each method being capable to provide valuable insights of the technique itself and its applications. This paper aims to provide a critical review on various calibration methods used in microdialysis applications, inclusive of a detailed description of the microdialysis technique itself to start with. It is expected that this article shall review in detail, the various calibration methods employed, present examples of work related to each calibration method including clinical efforts, plus the advantages and disadvantages of each of the methods.
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Cordeiro C, de Vries M, Ngabi W, Oomen P, Cremers T, Westerink B. In vivo continuous and simultaneous monitoring of brain energy substrates with a multiplex amperometric enzyme-based biosensor device. Biosens Bioelectron 2015; 67:677-86. [DOI: 10.1016/j.bios.2014.09.101] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 08/27/2014] [Accepted: 09/22/2014] [Indexed: 01/30/2023]
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