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Torre R, Costa-Rama E, Nouws HPA, Delerue-Matos C. A do-it-yourself electrochemical cell based on pencil leads and transparency sheets: Application to the enzymatic determination of histamine. Talanta 2024; 266:124980. [PMID: 37536106 DOI: 10.1016/j.talanta.2023.124980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/10/2023] [Accepted: 07/22/2023] [Indexed: 08/05/2023]
Abstract
The availability of more efficient analytical methods that answer the world's demands is a challenge and their development continues to be a difficult task. In this work the construction of an electrochemical cell, based on low-cost and accessible materials, that can be easily constructed and used for electroanalytical purposes, is described. Pencil leads were used as electrodes and a transparency sheet as the base. This cell was used as transducer for developing an amperometric biosensor for the quantification of histamine, which is the only biogenic amine regulated by law. The analysis was based on the use of diamine oxidase as biorecognition element, hexacyanoferrate(III) as electron-transfer mediator, and chronoamperometry, at +0.5 V during 100 s, to record the analytical signal. A linear relationship between histamine concentration and the analytical signal was established between 5.0 and 35 mg L-1 and a low limit of detection (1.0 mg L-1) was achieved. The analysis of different fish species (sardine and tuna) was performed, obtaining recovery values between 102% and 110%. The stability of the sensor is noteworthy: it maintained 95% of the initial analytical signal after 15 days.
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Affiliation(s)
- Ricarda Torre
- REQUIMTE/LAQV, Instituto Superior de Engenharia Do Porto, Instituto Politécnico Do Porto, Rua Dr. António Bernardino de Almeida 431, 4249-015, Porto, Portugal
| | - Estefania Costa-Rama
- Departamento de Química Física y Analítica, Universidad de Oviedo, Av. Julián Clavería 8, 33006, Oviedo, Spain.
| | - Henri P A Nouws
- REQUIMTE/LAQV, Instituto Superior de Engenharia Do Porto, Instituto Politécnico Do Porto, Rua Dr. António Bernardino de Almeida 431, 4249-015, Porto, Portugal
| | - Cristina Delerue-Matos
- REQUIMTE/LAQV, Instituto Superior de Engenharia Do Porto, Instituto Politécnico Do Porto, Rua Dr. António Bernardino de Almeida 431, 4249-015, Porto, Portugal.
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Kagawa M, Morioka K, Osashima M, Hemmi A, Yamamoto S, Shoji A, Uchiyama K, Nakajima H. Development of small-sized fluorescence detector for pipette tip-based biosensor for on-site diagnosis. Talanta 2023; 256:124311. [PMID: 36738624 DOI: 10.1016/j.talanta.2023.124311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/19/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023]
Abstract
A small-sized fluorescence detector (referred to as a pipette tip [PT]-reader) was developed for a pipette tip-based biosensor. The PT-reader allows us to measure the fluorescence intensity of a solution in a truncated cone-shaped pipette tip with only the tip inserted into the PT-reader. A pipette holder made from a mixture of polydimethylsiloxane (PDMS) and carbon black was capable of the rigorous position arrangement of a truncated cone shaped-pipette tip and the prevention of stray light. The detection performance of the PT-reader was evaluated by measurement of resorufin. The limit of detection (LOD; 3σ) and the relative standard deviation (RSD, n = 4) were estimated to be 0.46 μM and 0.47-4.1%, respectively. This performance was comparable to that of a desktop-type fluorescence microplate reader. In addition, the PT-reader was applied to the quantification of immunoglobulin A (IgA), and the LOD (3σ) of IgA was estimated to be 1.0 ng/mL. The quantitation values of IgA in human saliva obtained by the PT-based enzyme-linked immunosorbent assay (PT-ELISA) were in agreement with those obtained by conventional ELISA. The PT-reader is expected to be useful for low-cost and user-friendly measurements, and the technique of device development proposed in this study will contribute to the progress of on-site medical diagnosis.
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Affiliation(s)
- Masakazu Kagawa
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo, 192-0397, Japan
| | - Kazuhiro Morioka
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan.
| | - Moeko Osashima
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo, 192-0397, Japan
| | - Akihide Hemmi
- Mebius Advanced Technology Ltd., 3-31-6 Nishiogi-kita, Suginami-ku, Tokyo, 167-0042, Japan
| | - Shoji Yamamoto
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo, 192-0397, Japan
| | - Atsushi Shoji
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Katsumi Uchiyama
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo, 192-0397, Japan
| | - Hizuru Nakajima
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo, 192-0397, Japan.
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Wu M, Qi F, Qiu R, Feng J, Ren X, Rong S, Ma H, Pan H, Chang D. OUP accepted manuscript. J AOAC Int 2022; 105:1175-1182. [PMID: 35167658 DOI: 10.1093/jaoacint/qsac024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/06/2022] [Accepted: 02/02/2022] [Indexed: 11/14/2022]
Affiliation(s)
- Mengdie Wu
- Shanghai University of Traditional Chinese Medicine, Shanghai University of Medicine and Health Sciences, Shanghai, 201203, China
- Shanghai University of Medicine and Health Sciences, Shanghai Zhoupu Hospital, Shanghai, 201318, China
| | - Feifan Qi
- Shanghai University of Medicine and Health Sciences, Shanghai Zhoupu Hospital, Shanghai, 201318, China
- University of Shanghai for science and technology, School of Medical Instrument and Food Engineering, Shanghai, 200093, China
| | - Ren Qiu
- Shanghai University of Medicine and Health Sciences, Shanghai Zhoupu Hospital, Shanghai, 201318, China
- University of Shanghai for science and technology, School of Medical Instrument and Food Engineering, Shanghai, 200093, China
| | - Jing Feng
- Shanghai University of Medicine and Health Sciences, The college of medical technology, Shanghai, 201318, China
| | - Xinshui Ren
- Shanghai University of Traditional Chinese Medicine, Shanghai University of Medicine and Health Sciences, Shanghai, 201203, China
- Shanghai University of Medicine and Health Sciences, Shanghai Zhoupu Hospital, Shanghai, 201318, China
| | - Shengzhong Rong
- Mudanjiang Medical University, Public Health School, Mudanjiang, 157011, China
| | - Hongkun Ma
- Mudanjiang Medical University, Public Health School, Mudanjiang, 157011, China
| | - Hongzhi Pan
- Shanghai University of Medicine and Health Sciences, Shanghai Zhoupu Hospital, Shanghai, 201318, China
| | - Dong Chang
- The Affiliated Pudong Hospital, Fudan University, Department of Clinical Laboratory, Shanghai, 201399, China
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A novel miniaturized electroanalytical device integrated with gas extraction for the voltammetric determination of sulfite in beverages. Anal Chim Acta 2021; 1185:339067. [PMID: 34711313 DOI: 10.1016/j.aca.2021.339067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/29/2021] [Accepted: 09/14/2021] [Indexed: 11/20/2022]
Abstract
Voltammetry and amperometry are inexpensive and high-performance analytical techniques. However, their lack of selectivity limits their use in complex matrices such as biological, environmental, and food samples. Therefore, voltammetric and amperometric analyses of these samples usually require time-consuming and laborious sample pretreatments. In this study, we present a simple and cost-effective approach to fabricate a miniaturized electrochemical cell that can be easily coupled to a head space-like gas extraction procedure in such a way the sample pretreatment and voltammetric detection are performed in a single step. As a proof of concept, we have used the proposed system to quantify sulfite in beverage samples after its conversion to SO2(g). Despite the simplicity and low cost of the proposed system, it provided good analytical performance and a limit of detection of 4.0 μmol L-1 was achieved after only 10 min of extraction. The proposed system is quite versatile since it can be applied to quantify any volatile electroactive species. Also, the proposed system provides a unique way to assess real-time extraction curves, which are essential to study and optimize new gas extraction procedures. Therefore, the approach described in this study could contribute to both applied and fundamental Analytical Chemistry.
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