1
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Fu D, Wang X, Liu B. Old drug, new use: The thalidomide-based fluorescent probe for hydrazine detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 309:123808. [PMID: 38154305 DOI: 10.1016/j.saa.2023.123808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/07/2023] [Accepted: 12/22/2023] [Indexed: 12/30/2023]
Abstract
Thalidomide, a widely used ligand for cereblon (CRBN), has been gaining attention for its targeted protein degradation. In this study, we aimed to improve the optical and biocompatible features of hydrazine fluorescent probes by a novel probe called TH-1, based on the thalidomide moiety. Our results demonstrate that TH-1 exhibits remarkable properties including significant colorimetric changes, a fast response time, excellent selectivity, and high sensitivity as a hydrazine fluorescent probe. The mechanism by which TH-1 senses hydrazine has been convincingly verified. Notably, we have successfully applied TH-1 for bioimaging of hydrazine in living A549 cells, highlighting its practical significance. Moreover, the utilization of thalidomide, a clinically approved drug, as a fluorescent skeleton has expanded the repertoire of fluorescent skeleton libraries, paving the way for further on fluorescent probes.
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Affiliation(s)
- Dingqiang Fu
- National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, International Academy of Targeted Therapeutics and Innovation, College of Pharmacy, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Xianding Wang
- School of Chemistry and Environmental Engineering, Hubei Minzu Univrsity, Enshi 445000, Hubei, China
| | - Bo Liu
- School of Chemistry and Environmental Engineering, Hubei Minzu Univrsity, Enshi 445000, Hubei, China; Hubei Key Laboratory of Biological Resources Protection and Utilization, Hubei Minzu University, Enshi 445000, Hubei, China.
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2
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Feng J, Duan N, Yang S, Tian H, Sun B. A colorimetric probe for the detection of hydrazine and its application. ANAL SCI 2024; 40:439-444. [PMID: 38085444 DOI: 10.1007/s44211-023-00473-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/13/2023] [Indexed: 02/27/2024]
Abstract
A colorimetric probe was developed to detect N2H4 content based on the colour change in natural light, and the recognition mechanism is the N2H4 cutting the ester bond of probe 1. As the N2H4 concentration increases, the Ultraviolet absorption ratio (A352nm/A505nm) of the probe solution was gradually increases, and the colour of the solution changed from colourless to pink under natural light. The detection limit of probe 1 for N2H4 was 0.1 μM. The probe can also be applied to test paper detection, and the test paper of probe was changed from colourless to fluorescent yellow under UV light as the concentration of N2H4 increased. There was a linear functional relationship between the RGB (Red, Green, Blue) values of the photos and the N2H4 concentration. Probe 1 is a rapid detection tool for N2H4 concentration using a smartphone. Furthermore, the probe can also be used to detect N2H4 in tap water, tea and apple juice.
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Affiliation(s)
- Jingyi Feng
- Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, 100048, People's Republic of China
| | - Ning Duan
- Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, 100048, People's Republic of China
| | - Shaoxiang Yang
- Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, 100048, People's Republic of China.
| | - Hongyu Tian
- Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, 100048, People's Republic of China
| | - Baoguo Sun
- Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, 100048, People's Republic of China
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3
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Lu G, Yu S, Duan L, Meng S, Ding S, Dong T. New 1,8-naphthalimide-based colorimetric fluorescent probe for specific detection of hydrazine and its multi-functional applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 305:123450. [PMID: 37776836 DOI: 10.1016/j.saa.2023.123450] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/11/2023] [Accepted: 09/21/2023] [Indexed: 10/02/2023]
Abstract
Detection of hydrazine is particularly important given its toxicity and extensive application in various industries. In the present paper, a colorimetric fluorescent probe NI-CIN based on 1,8-naphthalimide derivative was rationally designed and simply synthesized for specific detection of hydrazine based on the intramolecular charge transfer (ICT) mechanism. Upon the addition of hydrazine, a significant fluorescence enhancement at 556 nm could be observed within 4 min with a distinct color change from colorless to bright yellow, readily observed by naked eye. Except for HRMS and 1H NMR, density functional theory (DFT) calculations were also performed to support the sensing mechanism. In addition, eco-friendly paper test strips were easily prepared by NI-CIN for selective and real-time detection of hydrazine under aqueous and vapor phases. Furthermore, NI-CIN shows many potential applications for detecting hydrazine in real water and soil samples along with bio-imaging in HepG-2 cells and zebrafish.
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Affiliation(s)
- Guifen Lu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Siyuan Yu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Luyao Duan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Suci Meng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China; Institute of Theoretical and Computational Chemistry, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, PR China
| | - Sihan Ding
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Ting Dong
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
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4
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Saei JN, Asadpour-Zeynali K. Enhanced electrocatalytic activity of fluorine doped tin oxide (FTO) by trimetallic spinel ZnMnFeO 4/CoMnFeO 4 nanoparticles as a hydrazine electrochemical sensor. Sci Rep 2023; 13:12188. [PMID: 37500942 PMCID: PMC10374622 DOI: 10.1038/s41598-023-39321-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/23/2023] [Indexed: 07/29/2023] Open
Abstract
In the present study, ZnMnFeO4 and CoMnFeO4 tri-metallic spinel oxide nanoparticles (NPs) were provided using hydrothermal methods. The nanoparticles have been characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), and electrochemical techniques. A reliable and reproducible electrochemical sensor based on ZnMnFeO4/CoMnFeO4/FTO was fabricated for rapid detection and highly sensitive determination of hydrazine by the DPV technique. It is observed that the modified electrode causes a sharp growth in the oxidation peak current and a decrease in the potential for oxidation, contrary to the bare electrode. The cyclic voltammetry technique showed that there is high electrocatalytic activity and excellent sensitivity in the suggested sensor for hydrazine oxidation. Under optimal experimental conditions, the DPV method was used for constructing the calibration curve, and a linear range of 1.23 × 10-6 M to 1.8 × 10-4 M with a limit of detection of 0.82 ± 0.09 μM was obtained. The obtained results indicate that ZnMnFeO4/CoMnFeO4/FTO nano sensors exhibit pleasant stability, reproducibility, and repeatability in hydrazine measurements. In addition, the suggested sensor was efficiently employed to ascertain the hydrazine in diverse samples of cigarette tobacco.
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Affiliation(s)
- Jalal Niazi Saei
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 51666-16471, Iran
| | - Karim Asadpour-Zeynali
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 51666-16471, Iran.
- Pharmaceutical Analysis Research Center, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, 51664, Iran.
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5
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Ananthanarayanan R, Malathi N, Sivaramakrishna M. A non-destructive dielectric based approach for the rapid determination of tributyl phosphate in dodecane. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:014102. [PMID: 35104986 DOI: 10.1063/5.0053821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 12/18/2021] [Indexed: 06/14/2023]
Abstract
Reliable determination of tributyl phosphate (TBP) in suitable diluents is indispensable in studies related to nuclear fuel reprocessing. Herein, we present a rapid and non-destructive dielectric based approach to determine TBP in mixtures of TBP and n-dodecane in the quality control as well as research laboratories associated with nuclear fuel reprocessing. The measurement is based on an in-house developed new class of sensors called pulsating sensors. The heart of the instrument consists of a three gate oscillator circuit that generates the first electronic response directly in the digital domain. With a single capacitive type probe and using a standalone embedded unit, two different ranges of measurement are covered. A detailed investigation on the various factors affecting the probe output is carried out to achieve maximum sensitivity and precision in analysis. It takes less than a minute to take a measurement. The precision in analysis in the reported range of measurement (0.7-35% v/v TBP) lies between 0.15% and 11.4% relative standard deviation, while the absolute error in measurement lies between ±0.02 and ±0.43% (v/v). The response time and limit of quantification are 4.5 s and 0.1% (v/v), respectively. The measurements made with the proposed technique are compared with the well-established gas chromatographic technique.
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Affiliation(s)
- R Ananthanarayanan
- Safety Quality and Resource Management Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
| | - N Malathi
- Electronics and Instrumentation Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
| | - M Sivaramakrishna
- Electronics and Instrumentation Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
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6
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Yu X, Pei J, Bi L. Electrochemical sensor based on polyoxometalate immobilized using a layer-by-layer assembly process to detect 2,4-dinitrophenylhydrazine. NEW J CHEM 2022. [DOI: 10.1039/d2nj00312k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An electrochemical sensor for the detection of 2,4-dinitrophenylhydrazine was developed by utilizing the reversible redox properties of W-containing polyoxometalates.
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Affiliation(s)
- Xiaoxia Yu
- Department of Chemical Engineering and Applied Chemistry, College of Chemistry, Jilin University, Changchun 130021, P. R. China
| | - Jianye Pei
- Department of Chemical Engineering and Applied Chemistry, College of Chemistry, Jilin University, Changchun 130021, P. R. China
| | - Lihua Bi
- Department of Chemical Engineering and Applied Chemistry, College of Chemistry, Jilin University, Changchun 130021, P. R. China
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7
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Adeosun WA, Asiri AM, Marwani HM. Real time detection and monitoring of 2, 4-dinitrophenylhydrazine in industrial effluents and water bodies by electrochemical approach based on novel conductive polymeric composite. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 206:111171. [PMID: 32866893 DOI: 10.1016/j.ecoenv.2020.111171] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/06/2020] [Accepted: 08/08/2020] [Indexed: 06/11/2023]
Abstract
Much attention has been given to detection and monitoring of hydrazine-based compounds in recent time because of its significant negative impacts on human health and ecosystem (aquatic lives). This prompted the current study focusing on detection of 2, 4-dinitrophenylhydrazine (2, 4-dnphz) using electrochemically synthesized poly-para amino benzoic acid-manganese oxide (P-pABA-MnO2) composite film. The synthesized P-pABA-MnO2 composite film was characterized in terms of its structural and morphological properties by X-ray diffraction spectroscopy and field emission scanning electron microscopy respectively. In addition, functionalities and binding energy of p-PABA-MnO2 were confirmed using Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy respectively. Finally, electrochemical properties were investigated using electrochemical impedance spectroscopy and cyclic voltammetry. The synthesized P-pABA-MnO2 displayed good electrocatalytic reduction property towards 2, 4-dnphz with ultra-low limit of detection (0.08 μM; S/N = 3) and very high sensitivity (52 μAμ-1Mcm-2). The proposed sensor based on P-pABA-MnO2 also demonstrated good stability in terms of repeatability, reproducibility and interferents effects. Lastly, the proposed sensor was satisfactorily used in detection of 2, 4-dnphz in environmental real samples.
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Affiliation(s)
- Waheed A Adeosun
- Centre of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O Box 80203, Jeddah, 21589, Saudi Arabia; Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O Box 80203, Jeddah, 21589, Saudi Arabia.
| | - Abdullah M Asiri
- Centre of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O Box 80203, Jeddah, 21589, Saudi Arabia; Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O Box 80203, Jeddah, 21589, Saudi Arabia.
| | - Hadi M Marwani
- Centre of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O Box 80203, Jeddah, 21589, Saudi Arabia; Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O Box 80203, Jeddah, 21589, Saudi Arabia
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8
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Sha R, Jones SS, Vishnu N, Soundiraraju B, Badhulika S. A Novel Biomass Derived Carbon Quantum Dots for Highly Sensitive and Selective Detection of Hydrazine. ELECTROANAL 2018. [DOI: 10.1002/elan.201800255] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Rinky Sha
- Department of Electrical Engineering; Indian Institute of Technology; Hyderabad 502285 India
| | - S. Solomon Jones
- Department of Electrical Engineering; Indian Institute of Technology; Hyderabad 502285 India
| | - Nandimalla Vishnu
- Department of Electrical Engineering; Indian Institute of Technology; Hyderabad 502285 India
| | - Bhuvaneswari Soundiraraju
- Analytical and Spectroscopy Division; Vikram Sarabhai Space Centre, Thiruvananthapuram; 695022 Kerala India
| | - Sushmee Badhulika
- Department of Electrical Engineering; Indian Institute of Technology; Hyderabad 502285 India
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9
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Sanga R, Agarwal S, Sivaramakrishna M, Rao GP. Deployment of quasi-digital sensor for high temperature molten salt level measurement in pyroprocessing plants. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:045007. [PMID: 29716318 DOI: 10.1063/1.5012803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Development of a liquid molten salt level sensor device that can detect the level of liquid molten salt in the process vessels of pyrochemical reprocessing of spent metallic fuels is detailed. It is proposed to apply a resistive-type pulsating sensor-based level measurement approach. There are no commercially available sensors due to limitations of high temperature, radiation, and physical dimensions. A compact, simple, rugged, low power, and high precise pulsating sensor-based level probe and simple instrumentation for the molten salt liquid level sensor to work in the extreme conditions has been indigenously developed, with high precision and accuracy. The working principle, design concept, and results have been discussed. This level probe is mainly composed of the variable resistor made up of ceramic rods. This resistor constitutes the part of resistance-capacitance-type Logic Gate Oscillator (LGO). A change in the molten salt level inside the tank causes a small change in the resistance which in turn changes the pulse frequency of the LGO. Thus the frequency, the output of the instrument that is displayed on the LCD of an embedded system, is a function of molten salt level. In the present design, the range of level measurement is about 10 mm. The sensitivity in position measurement up to 10 mm is ∼2.5 kHz/mm.
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Affiliation(s)
- Ramesh Sanga
- Innovative Sensors Section, Security and Innovative Sensors Division, Indira Gandhi Centre for Atomic Research, HBNI, Kalpakkam, Tamil Nadu 603102, India
| | - Sourabh Agarwal
- Pyro Process Engineering Division, Indira Gandhi Centre for Atomic Research, HBNI, Kalpakkam, Tamil Nadu 603102, India
| | - M Sivaramakrishna
- Innovative Sensors Section, Security and Innovative Sensors Division, Indira Gandhi Centre for Atomic Research, HBNI, Kalpakkam, Tamil Nadu 603102, India
| | - G Prabhakara Rao
- Innovative Sensors Section, Security and Innovative Sensors Division, Indira Gandhi Centre for Atomic Research, HBNI, Kalpakkam, Tamil Nadu 603102, India
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10
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Malathi N, Sahoo P, Ananthanarayanan R, Murali N. Level monitoring system with pulsating sensor--application to online level monitoring of dashpots in a fast breeder reactor. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:025103. [PMID: 25725884 DOI: 10.1063/1.4906817] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An innovative continuous type liquid level monitoring system constructed by using a new class of sensor, viz., pulsating sensor, is presented. This device is of industrial grade and it is exclusively used for level monitoring of any non conducting liquid. This instrument of unique design is suitable for high resolution online monitoring of oil level in dashpots of a sodium-cooled fast breeder reactor. The sensing probe is of capacitance type robust probe consisting of a number of rectangular mirror polished stainless steel (SS-304) plates separated with uniform gaps. The performance of this novel instrument has been thoroughly investigated. The precision, sensitivity, response time, and the lowest detection limit in measurement using this device are <0.01 mm, ∼100 Hz/mm, ∼1 s, and ∼0.03 mm, respectively. The influence of temperature on liquid level is studied and the temperature compensation is provided in the instrument. The instrument qualified all recommended tests, such as environmental, electromagnetic interference and electromagnetic compatibility, and seismic tests prior to its deployment in nuclear reactor. With the evolution of this level measurement approach, it is possible to provide dashpot oil level sensors in fast breeder reactor for the first time for continuous measurement of oil level in dashpots of Control & Safety Rod Drive Mechanism during reactor operation.
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Affiliation(s)
- N Malathi
- Real Time Systems Division, Electronics, Instrumentation and Radiological Safety Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
| | - P Sahoo
- Real Time Systems Division, Electronics, Instrumentation and Radiological Safety Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
| | - R Ananthanarayanan
- Real Time Systems Division, Electronics, Instrumentation and Radiological Safety Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
| | - N Murali
- Real Time Systems Division, Electronics, Instrumentation and Radiological Safety Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
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11
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Andreasen SZ, Kwasny D, Amato L, Brøgger AL, Bosco FG, Andersen KB, Svendsen WE, Boisen A. Integrating electrochemical detection with centrifugal microfluidics for real-time and fully automated sample testing. RSC Adv 2015. [DOI: 10.1039/c4ra16858e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Here we present a robust, stable and low-noise experimental set-up for performing electrochemical detection on a centrifugal microfluidic platform.
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Affiliation(s)
- Sune Z. Andreasen
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby
- Denmark
| | - Dorota Kwasny
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby
- Denmark
| | - Letizia Amato
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby
- Denmark
| | - Anna Line Brøgger
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby
- Denmark
| | - Filippo G. Bosco
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby
- Denmark
| | - Karsten B. Andersen
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby
- Denmark
| | - Winnie E. Svendsen
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby
- Denmark
| | - Anja Boisen
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby
- Denmark
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12
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Analysis of uranium in dissolver solution of fast reactor carbide fuel reprocessing. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-2951-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Malathi N, Sahoo P, Praveen K, Murali N. A novel approach towards development of real time chemical dosimetry using pulsating sensor-based instrumentation. J Radioanal Nucl Chem 2013; 298:963-972. [PMID: 26224941 PMCID: PMC4513900 DOI: 10.1007/s10967-013-2531-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Indexed: 11/19/2022]
Abstract
The paper presents an innovative approach towards development of real time dosimetry using a chemical dosimeter for measurement of absorbed radiation dose in the range between 1 and 400 Gy. Saturated chloroform solution in water, a well known chemical dosimeter, is used to demonstrate the concept of online measurement of radiation dose. The measurement approach involves online monitoring of increase in conductivity of saturated chloroform solution due to progressive build up of traces of highly conducting HCl during exposure to gamma irradiation. A high performance pulsating sensor-based conductivity monitoring instrument has been used to monitor such real time change in conductivity of solution. A relation between conductivity shift and radiation dose has been established using radiochemical yield value (G value) of HCl. The G value of HCl in saturated chloroform dosimeter has been determined using laboratory developed pulsating sensor-based devices. In this connection dose rate of Co-60 gamma chamber was determined using Fricke dosimeter following a simple potentiometric measurement approach developed in-house besides conventional spectrophotometry. Results obtained from both measurement approaches agreed well. Complete instrumentation package has also been developed to measure real time radiation dose. The proposed real time radiation dosimeter is successfully tested in several measurement campaigns in order to assure its performance prior to its deployment in field.
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Affiliation(s)
- N. Malathi
- Innovative Instrumentation Section, Real Time Systems Division, Electronics Instrumentation and Radiological Safety Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102 Tamilnadu India
| | - P. Sahoo
- Innovative Instrumentation Section, Real Time Systems Division, Electronics Instrumentation and Radiological Safety Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102 Tamilnadu India
| | - K. Praveen
- Innovative Instrumentation Section, Real Time Systems Division, Electronics Instrumentation and Radiological Safety Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102 Tamilnadu India
| | - N. Murali
- Innovative Instrumentation Section, Real Time Systems Division, Electronics Instrumentation and Radiological Safety Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102 Tamilnadu India
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14
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Das K, Sahoo P, Murali N. Studies on oscillating chemical reaction in Cu(II)-catalyzed thiocyanate-hydrogen peroxide-NaOH system using pulsating sensor. INT J CHEM KINET 2012. [DOI: 10.1002/kin.20738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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