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Barros Azeredo NF, Ferreira Santos MS, Sempionatto JR, Wang J, Angnes L. Screen-Printed Technologies Combined with Flow Analysis Techniques: Moving from Benchtop to Everywhere. Anal Chem 2021; 94:250-268. [PMID: 34851628 DOI: 10.1021/acs.analchem.1c02637] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Screen-printed electrodes (SPEs) coupled with flow systems have been reported in recent decades for an ever-growing number of applications in modern electroanalysis, aiming for portable methodologies. The information acquired through this combination can be attractive for future users with basic knowledge, especially due to the increased measurement throughput, reduction in reagent consumption and minimal waste generation. The trends and possibilities of this set rely on the synergistic behavior that maximizes both SPE and flow analyses characteristics, allowing mass production and automation. This overview addresses an in-depth update about the scope of samples, target analytes, and analytical throughput (injections per hour, limits of detection, linear range, etc.) obtained by coupling injection techniques (FIA, SIA, and BIA) with SPE-based electrochemical detection.
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Affiliation(s)
- Nathália Florência Barros Azeredo
- Institute of Chemistry, University of São Paulo, São Paulo 05508-070, Brazil.,Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
| | | | - Juliane R Sempionatto
- Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
| | - Joseph Wang
- Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
| | - Lúcio Angnes
- Institute of Chemistry, University of São Paulo, São Paulo 05508-070, Brazil
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Khan ZA, Hong PJS, Lee CH, Hong Y. Recent Advances in Electrochemical and Optical Sensors for Detecting Tryptophan and Melatonin. Int J Nanomedicine 2021; 16:6861-6888. [PMID: 34675512 PMCID: PMC8521600 DOI: 10.2147/ijn.s325099] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/31/2021] [Indexed: 12/11/2022] Open
Abstract
Tryptophan and melatonin are pleiotropic molecules, each capable of influencing several cellular, biochemical, and physiological responses. Therefore, sensitive detection of tryptophan and melatonin in pharmaceutical and human samples is crucial for human well-being. Mass spectrometry, high-performance liquid chromatography, and capillary electrophoresis are common methods for both tryptophan and melatonin analysis; however, these methods require copious amounts of time, money, and manpower. Novel electrochemical and optical detection tools have been subjects of intensive research due to their ability to offer a better signal-to-noise ratio, high specificity, ultra-sensitivity, and wide dynamic range. Recently, researchers have designed sensitive and selective electrochemical and optical platforms by using new surface modifications, microfabrication techniques, and the decoration of diverse nanomaterials with unique properties for the detection of tryptophan and melatonin. However, there is a scarcity of review articles addressing the recent developments in the electrochemical and optical detection of tryptophan and melatonin. Here, we provide a critical and objective review of high-sensitivity tryptophan and melatonin sensors that have been developed over the past six years (2015 onwards). We review the principles, performance, and limitations of these sensors. We also address critical aspects of sensitivity and selectivity, limit and range of detection, fabrication process and time, durability, and biocompatibility. Finally, we discuss challenges related to tryptophan and melatonin detection and present future outlooks.
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Affiliation(s)
- Zeeshan Ahmad Khan
- Department of Physical Therapy, College of Healthcare Medical Science & Engineering, Inje University, Gimhae, Gyeong-nam, 50834, Korea
- Biohealth Products Research Center (BPRC), Inje University, Gimhae, Gyeong-nam, 50834, Korea
- Ubiquitous Healthcare & Anti-Aging Research Center (u-HARC), Inje University, Gimhae, Gyeong-nam, 50834, Korea
| | - Paul Jung-Soo Hong
- Department of Chemistry, Newton South High School, Newton, MA, 02459, USA
| | - Christina Hayoung Lee
- Department of Biology, College of Arts and Sciences, Vanderbilt University, Nashville, TN, 37212, USA
| | - Yonggeun Hong
- Department of Physical Therapy, College of Healthcare Medical Science & Engineering, Inje University, Gimhae, Gyeong-nam, 50834, Korea
- Biohealth Products Research Center (BPRC), Inje University, Gimhae, Gyeong-nam, 50834, Korea
- Ubiquitous Healthcare & Anti-Aging Research Center (u-HARC), Inje University, Gimhae, Gyeong-nam, 50834, Korea
- Department of Rehabilitation Science, Graduate School of Inje University, Gimhae, Gyeong-nam, 50834, Korea
- Department of Medicine, Division of Hematology/Oncology, Harvard Medical School-Beth Israel Deaconess Medical Center, Boston, MA, 02215, USA
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Squissato AL, Munoz RAA, Banks CE, Richter EM. An Overview of Recent Electroanalytical Applications Utilizing Screen‐Printed Electrodes Within Flow Systems. ChemElectroChem 2020. [DOI: 10.1002/celc.202000175] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- André L. Squissato
- Institute of Chemistry Federal University of Uberlandia Av. João Naves de Ávila 2121 – Uberlandia, Minas Gerais Brazil
| | - Rodrigo A. A. Munoz
- Institute of Chemistry Federal University of Uberlandia Av. João Naves de Ávila 2121 – Uberlandia, Minas Gerais Brazil
| | - Craig E. Banks
- Faculty of Science and Engineering Manchester Metropolitan University Chester Street Manchester M1 5GD UK
| | - Eduardo M. Richter
- Institute of Chemistry Federal University of Uberlandia Av. João Naves de Ávila 2121 – Uberlandia, Minas Gerais Brazil
- Faculty of Science and Engineering Manchester Metropolitan University Chester Street Manchester M1 5GD UK
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