1
|
Villanueva M, Vega-Chacón J, Picasso G. Comparative analysis of a bulk optode based on a valinomycin ionophore and a nano-optode in micelles with pluronic F-127 for the quantification of potassium in aqueous solutions. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:4710-4723. [PMID: 38948955 DOI: 10.1039/d4ay00581c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
In this work, two types of optical sensors were prepared for the quantification of potassium: the bulk optode (BO) and nano-optode (NO). The BO was prepared using three main components: the ionophore valinomycin, the ion exchanger tetrakis(4-chlorophenyl) potassium borate (K-TCPB), and the chromoionophore ETH 5294 (CHI). The optimal composition was found to be in a ratio of [1 : 1 : 1]. The NO was prepared by miniaturizing the BO through sonication in surfactant Pluronic F-127. The working range for the linear calibration model of BO was from 10-6 to 1.0 M K+ with a LODBO = 0.31 μM, meanwhile for NO was from 10-4 to 1.0 M K+ with a LODNO = 30.3 μM. Both optodes were tested for selectivity towards K+ in the presence of alkaline and alkaline earth ions, with a selectivity coefficient > 1.0. Furthermore, precision and stability studies of BO and NO were performed for three levels of K+ concentrations, 10-6, 10-3, 1.0 M for BO and 10-4, 10-2, 1.0 M for NO, showing a good homogeneity of the NO in the whole concentration range. However, an excessive variability was obtained for BO at 1.0 M K+. Therefore, the NO represents a potential tool for quantification of K+.
Collapse
Affiliation(s)
- Miguel Villanueva
- Technology of Materials for Environmental Remediation (TecMARA) Research Group, Faculty of Sciences, National University of Engineering, Av. Tupac Amaru 210, Lima 15333, Peru.
| | - Jaime Vega-Chacón
- Technology of Materials for Environmental Remediation (TecMARA) Research Group, Faculty of Sciences, National University of Engineering, Av. Tupac Amaru 210, Lima 15333, Peru.
| | - Gino Picasso
- Technology of Materials for Environmental Remediation (TecMARA) Research Group, Faculty of Sciences, National University of Engineering, Av. Tupac Amaru 210, Lima 15333, Peru.
| |
Collapse
|
2
|
Hou Y, Michiels J, Kerschaver CV, Vandaele M, Majdeddin M, Vossen E, Degroote J. The kinetics of glutathione in the gastrointestinal tract of weaned piglets supplemented with different doses of dietary reduced glutathione. Front Vet Sci 2023; 10:1220213. [PMID: 37635757 PMCID: PMC10448897 DOI: 10.3389/fvets.2023.1220213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/17/2023] [Indexed: 08/29/2023] Open
Abstract
This study aimed to investigate the kinetics of dietary GSH in the gastrointestinal tract and the effect of GSH on the intestinal redox status of weaned piglets. Forty-eight piglets with an average age of 26 days and an average body weight of 7.7 kg were used in this study. The piglets were divided into three treatment groups including the control group with a basal diet (CON) and two GSH groups with a basal diet supplemented with 0.1% GSH (LGSH) and 1.0% GSH (HGSH), respectively. The basal diet did not contain any GSH. The experiment lasted for 14 days, with eight animals sampled from each group on d5 and 14. The parts of 0-5%, 5-75%, and 75-100% of the length of the small intestine were assigned to SI1, SI2, and SI3. The results showed that GSH almost completely disappeared from the digesta at SI2. However, no difference in the GSH level in mucosa, liver, and blood erythrocytes was found. The level of cysteine (CYS) in SI1 digesta was significantly higher in HGSH than CON and LGSH on d14, and similar findings were observed for cystine (CYSS) in SI3 digesta on d5. The CYSS level in HGSH was also significantly higher than LGSH in the stomach on d14, while no CYS or CYSS was detected in the stomach for control animals, indicating the breakdown of GSH to CYS already occurred in the stomach. Irrespective of the dietary treatment, the CYS level on d14 and the CYSS level on d5 and 14 were increased when moving more distally into the gastrointestinal tract. Furthermore, the mucosal CYS level was significantly increased at SI1 in the LGSH and HGSH group compared with CON on d5. Glutathione disulfide (GSSG) was recovered in the diets and digesta from the LGSH and HGSH group, which could demonstrate the auto-oxidation of GSH. It is, therefore, concluded that GSH supplementation could not increase the small intestinal mucosal GSH level of weaned piglets, and this could potentially relate to the kinetics of GSH in the digestive tract, where GSH seemed to be prone to the breakdown to CYS and CYSS and the auto-oxidation to GSSG.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Jeroen Degroote
- Laboratory of Animal Nutrition and Animal Product Quality (LANUPRO), Department of Animal Sciences and Aquatic Ecology, Ghent University, Ghent, Belgium
| |
Collapse
|
3
|
Selective Determination of Glutathione Using a Highly Emissive Fluorescent Probe Based on a Pyrrolidine-Fused Chlorin. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020568. [PMID: 36677627 PMCID: PMC9862258 DOI: 10.3390/molecules28020568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/16/2022] [Accepted: 12/27/2022] [Indexed: 01/09/2023]
Abstract
We report the use of a carboxylated pyrrolidine-fused chlorin (TCPC) as a fluorescent probe for the determination of glutathione (GSH) in 7.4 pH phosphate buffer. TCPC is a very stable, highly emissive molecule that has been easily obtained from meso-tetrakis(4-methoxycarbonylphenyl) porphyrin (TCPP) through a 1,3-dipolar cycloaddition approach. First, we describe the coordination of TCPC with Hg(II) ions and the corresponding spectral changes, mainly characterized by a strong quenching of the chlorin emission band. Then, the TCPC-Hg2+ complex exhibits a significant fluorescence turn-on in the presence of low concentrations of the target analyte GSH. The efficacy of the sensing molecule was tested by using different TCPC:Hg2+ concentration ratios (1:2, 1:5 and 1:10) that gave rise to sigmoidal response curves in all cases with modulating detection limits, being the lowest 40 nM. The experiments were carried out under physiological conditions and the selectivity of the system was demonstrated against a number of potential interferents, including cysteine. Furthermore, the TCPC macrocycle did not showed a significant fluorescent quenching in the presence of other metal ions.
Collapse
|
4
|
Assessing citric acid-derived luminescent probes for pH and ammonia sensing: A comprehensive experimental and theoretical study. Anal Chim Acta 2021; 1186:339125. [PMID: 34756267 DOI: 10.1016/j.aca.2021.339125] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 09/03/2021] [Accepted: 09/27/2021] [Indexed: 11/20/2022]
Abstract
The present work reports on the assessment of luminescent probes derived from citric acid (CA) and β-aminothiols (namely, l-cysteine (Cys) and cysteamine) for instrumental and smartphone-based fluorimetric sensing purposes. Remarkably, the evaluated luminescent probes derived from natural compounds showed pH-dependent dual excitation/dual emission features. Both fluorophores hold promise for the ratiometric fluorimetric sensing of pH, being especially convenient for the smartphone-based sensing of pH via ratiometric analysis by proper selection of B and G color channels. Time dependent density functional theory (TDDFT) calculations allowed to substantiate the pH dependent structure-property relationship and to unveil the critical role of the CA derived carboxyl group, these findings contributing to the fundamental knowledge on these systems for the rational design of new fluorophores and in establishing fluorescence sensing mechanisms of CA-derived systems. Besides, paper-based devices modified with CA-Cys were implemented in a three-phase separation approach for sensitive and selective ammonia sensing, yielding a remarkable enrichment factor of 389 and a limit of detection of 37 μM under optimal conditions. The proposed approach was successfully applied to the determination of ammonia nitrogen and extractable ammonium in water samples and marine sediments, respectively.
Collapse
|
5
|
Baeumner AJ, Cui H, Gauglitz G, Moreno-Bondi MC, Szunerits S, Woolley AT. Advancements in sensor technology with innovative and significant research publications: how to write that perfect paper? Anal Bioanal Chem 2021; 414:21-24. [PMID: 34061245 DOI: 10.1007/s00216-021-03417-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Antje J Baeumner
- Institute for Analytical Chemistry, Bio- and Chemosensors, University Regensburg, Universitätsstraße 31, 93053, Regensburg, Germany
| | - Hua Cui
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, Anhui, China
| | - Günter Gauglitz
- Institute for Theoretical and Physical Chemistry, Eberhard-Karls-University, Tübingen, Germany
| | - Maria C Moreno-Bondi
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University, 28040, Madrid, Spain
| | - Sabine Szunerits
- Institut d'Electronique, de Microélectronique et de Nanotechnologie (IEMN, UMR CNRS 8520), Université de Lille, 59652, Villeneuve d'Ascq, France
| | - Adam T Woolley
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, 84602-5700, USA.
| |
Collapse
|
6
|
Ngororabanga JMV, Moyo CB, Tshentu ZR. A novel multidentate pyridyl ligand: A turn-on fluorescent chemosensor for Hg 2+ and its potential application in real sample analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 242:118651. [PMID: 32795949 DOI: 10.1016/j.saa.2020.118651] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 06/11/2023]
Abstract
A novel pyridyl-based ligand with multiple binding sites was developed as potential turn on fluorescent probe for mercuric ion. In comparison with other transition metal ions, the ligand displayed a significant optical selectivity and sensitivity for Hg2+ in aqueous solution with a remarkable fluorescence enhancement. The obtained spectroscopic response was related to the inhibition of the photo-chemical mechanism known as photo-induced electron transfer (PET) in the ligand and CN isomerization by Hg2+ binding. A good linearity between fluorescence responses and Hg2+ concentration was obtained in the range 3.3 × 10-9 M-1.6 × 10-8 M and a nanomolar level limit of detection (LOD) (1.4 × 10-9 M ~ 0.28 ppb) and limit of quantification (LOQ) (4.8 × 10-9 M ~ 0.93 ppb) were obtained. Both LOD and LOQ values are very low compared to the reported permissible Hg2+ level in drinking water (2 ppb) by US Environmental Protection Agency (EPA). The possible binding mode between ligand and Hg2+ were determined using Job's plot analysis and density functional theory (DFT) calculations and a complex with 1:1 stoichiometric ratio was suggested. The response of the pyridyl ligand upon Hg2+ addition was noted to be fast without any time delay and reversible. The performance of the ligand at nanomolar level of Hg2+ and real sample application of the proposed method was investigated and satisfactory results were obtained.
Collapse
Affiliation(s)
| | - Cyprian B Moyo
- Department of Chemistry, Nelson Mandela University, Port Elizabeth 6031, South Africa
| | - Zenixole R Tshentu
- Department of Chemistry, Nelson Mandela University, Port Elizabeth 6031, South Africa.
| |
Collapse
|
7
|
Ngororabanga JMV, Tshentu ZR, Mama N. A New Highly Selective Colorimetric and Fluorometric Coumarin-based Chemosensor for Hg 2. J Fluoresc 2020; 30:985-997. [PMID: 32583123 DOI: 10.1007/s10895-020-02542-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/15/2020] [Indexed: 11/30/2022]
Abstract
A novel colorimetric and fluorometric method based on coumarin as signalling unit was developed for Hg2+ recognition and quantification. Initially, the alkyne functionality was incorporated into a coumarin system and the resulting molecule showed higher specificity and sensitivity for Hg2+ over other cations in both absorption and emission sensing assays. The Hg2+ recognition was detected as visible colour change from colourless to yellow and as fluorescence quenching. The colour change was assigned to the increased intramolecular charge transfer (ICT) in the signalling unit upon Hg2+ binding whereas a decline in the fluorescence intensity was ascribed to the heavy atom effect from Hg2+. In order to generate a material with high sensing performance level, alkyne-functionalized molecule was hosted into a polymeric material. The resulting functionalized polymer showed higher sensitivity and selectivity for Hg2+ over its corresponding coumarin molecule. The investigation of the possible binding modes for Hg2+ suggested both alkyne and triazole functionalities as potential binding sites for Hg2+. The limit of detection (LOD) and limit of quantification (LOQ) of the proposed method were evaluated and values less than a recommended maximum level of Hg2+contaminant in drinking water (2.00 μg/L) were obtained (LOD = 0.44 μg/L and LOQ = 1.33μg/L). The real-life application of the method was investigated using natural water samples containing Hg2+ levels equivalent to the maximum tolerable concentration of Hg2+ in drinking water. The outcomes suggested that the method could be used in the sensing and determination of Hg2+ level of contaminant in the environment.
Collapse
Affiliation(s)
| | - Zenixole R Tshentu
- Department of Chemistry, Nelson Mandela University, Port Elizabeth, 6031, South Africa
| | - Neliswa Mama
- Department of Chemistry, Nelson Mandela University, Port Elizabeth, 6031, South Africa
| |
Collapse
|
8
|
Ponjan N, Kielar F, Dungkaew W, Kongpatpanich K, Zenno H, Hayami S, Sukwattanasinitt M, Chainok K. Self-assembly of three-dimensional oxalate-bridged alkali( i)–lanthanide( iii) heterometal–organic frameworks. CrystEngComm 2020. [DOI: 10.1039/d0ce00099j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Three isostructural 3D oxalate bridged alkali(i)–lanthanide(iii) MOFs with a pcu net based on cubane-like [Ln4O4] clusters and their magnetic, CO2 adsorption, and photoluminescence sensing properties are presented.
Collapse
Affiliation(s)
- Nutcha Ponjan
- Thammasat University Research Unit in Multifunctional Crystalline Materials and Applications
- Faculty of Science and Technology
- Thammasat University
- Pathum Thani 12121
- Thailand
| | - Filip Kielar
- Department of Chemistry
- Faculty of Science
- Naresuan University
- Phitsanulok 65000
- Thailand
| | - Winya Dungkaew
- Department of Chemistry
- Faculty of Science
- Mahasarakham University
- Thailand
| | - Kanokwan Kongpatpanich
- School of Molecular Science and Engineering
- Vidyasirimedhi Institute of Science and Technology
- Rayong 21210
- Thailand
| | - Hikaru Zenno
- Department of Chemistry
- Graduate School of Science and Technology and Institute of Pulsed Power Science
- Kumamoto
- 860-8555 Japan
| | - Shinya Hayami
- Department of Chemistry
- Graduate School of Science and Technology and Institute of Pulsed Power Science
- Kumamoto
- 860-8555 Japan
| | | | - Kittipong Chainok
- Thammasat University Research Unit in Multifunctional Crystalline Materials and Applications
- Faculty of Science and Technology
- Thammasat University
- Pathum Thani 12121
- Thailand
| |
Collapse
|
9
|
Chahal MK, Labuta J, Březina V, Karr PA, Matsushita Y, Webre WA, Payne DT, Ariga K, D'Souza F, Hill JP. Knock-on synthesis of tritopic calix[4]pyrrole host for enhanced anion interactions. Dalton Trans 2019; 48:15583-15596. [PMID: 31353382 DOI: 10.1039/c9dt02365h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Interactions of anionic guests with a tritopic peripherally functionalized conjugated calix[4]pyrrole host (1) prepared using a regioselective synthetic method is reported. The regioselectivity of synthesis relies on selective N-alkylation of the calix[4]pyrrole caused by peripheral substitution of one pyrrole group with subsequent N-alkylation at the opposing pyrrole group termed by us 'knock-on' regioselectivity. The resulting host molecule exhibits anion interactions with common chloride and nitrate anions enhanced by an order of magnitude over the parent conjugated calix[4]pyrrole. Combined analysis of 1H NMR and UV-vis spectroscopic titration data enabled an evaluation of binding strengths of anions with the host KA in a binding model where the salt dissociation process is also incorporated in the form of its dissociation constant Kd. Anions could be classified as two types based on their interactions with 1: Type A anions (chloride, nitrate, perchlorate, hydrogensulphate) associate as 1 : 1 complexes through hydrogen bonding while interactions involving Type B anions (acetate, fluoride, dihydrogenphosphate) are complicated by host deprotonation and/or countercation association. Hosts based on rim-functionalized calix[4]pyrroles such as 1 represent a promising new family of chromophores for estimation of biologically relevant anions or other species.
Collapse
Affiliation(s)
- Mandeep K Chahal
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan.
| | - Jan Labuta
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan.
| | - Václav Březina
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
| | - Paul A Karr
- Department of Physical Sciences and Mathematics, Wayne State College, 111 Main Street, Wayne, Nebraska 68787, USA
| | - Yoshitaka Matsushita
- Research Network and Facility Services Division, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Whitney A Webre
- Department of Chemistry, University of North Texas, 1155 Union Circle, 305070 Denton, Texas 76203, USA
| | - Daniel T Payne
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan.
| | - Katsuhiko Ariga
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan. and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Francis D'Souza
- Department of Chemistry, University of North Texas, 1155 Union Circle, 305070 Denton, Texas 76203, USA
| | - Jonathan P Hill
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan.
| |
Collapse
|
10
|
Terra IAA, Sanfelice RC, Scagion VP, Tomazio NB, Mendonça CR, Nunes LAO, Correa DS. Polyvinylpyrrolidone electrospun nanofibers doped with Eu3+: Fabrication, characterization, and application in gas sensors. J Appl Polym Sci 2019. [DOI: 10.1002/app.47775] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Idelma A. A. Terra
- Nanotechnology National Laboratory for Agriculture (LNNA)Embrapa Instrumentação 13560‐970, São Carlos São Paulo Brazil
| | - Rafaela C. Sanfelice
- Departamento de Engenharia QuímicaInstituto de Ciências Tecnológicas e Exatas – ICTE, Universidade Federal do Triângulo Mineiro – UFTM Uberaba Minas Gerais Brazil
| | - Vanessa P. Scagion
- Nanotechnology National Laboratory for Agriculture (LNNA)Embrapa Instrumentação 13560‐970, São Carlos São Paulo Brazil
- PPGQ, Department of Chemistry, Center for Exact Sciences and TechnologyFederal University of São Carlos (UFSCar) São Carlos São Paulo Brazil
| | - Nathalia B. Tomazio
- São Carlos Institute of Physics (IFSC)São Paulo University (USP) 13560‐970, São Carlos São Paulo Brazil
| | - Cleber R. Mendonça
- São Carlos Institute of Physics (IFSC)São Paulo University (USP) 13560‐970, São Carlos São Paulo Brazil
| | - Luiz A. O. Nunes
- São Carlos Institute of Physics (IFSC)São Paulo University (USP) 13560‐970, São Carlos São Paulo Brazil
| | - Daniel S. Correa
- Nanotechnology National Laboratory for Agriculture (LNNA)Embrapa Instrumentação 13560‐970, São Carlos São Paulo Brazil
- PPGQ, Department of Chemistry, Center for Exact Sciences and TechnologyFederal University of São Carlos (UFSCar) São Carlos São Paulo Brazil
| |
Collapse
|
11
|
Ngororabanga JMV, Tshentu ZR, Mama N. A highly selective and sensitive ESIPT-based coumarin–triazole polymer for the ratiometric detection of Hg2+. NEW J CHEM 2019. [DOI: 10.1039/c9nj01366k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A reversible ESIPT based system for the detection of Hg2+ was developed. The system exhibited better properties compared to that of recently developed ratiometric fluorescent systems.
Collapse
Affiliation(s)
| | | | - Neliswa Mama
- Department of Chemistry
- Nelson Mandela University
- Port Elizabeth
- South Africa
| |
Collapse
|
12
|
Kataoka Y, Fujita H, Afanaseva A, Nagao C, Mizuguchi K, Kasahara Y, Obika S, Kuwahara M. High-Contrast Facile Imaging with Target-Directing Fluorescent Molecular Rotors, the N3-Modified Thioflavin T Derivatives. Biochemistry 2018; 58:493-498. [DOI: 10.1021/acs.biochem.8b01181] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yuka Kataoka
- Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Hiroto Fujita
- Graduate School of Integrated Basic Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Arina Afanaseva
- National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Saito-Asagi, Ibaraki, Osaka 567-0085, Japan
| | - Chioko Nagao
- National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Saito-Asagi, Ibaraki, Osaka 567-0085, Japan
| | - Kenji Mizuguchi
- National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Saito-Asagi, Ibaraki, Osaka 567-0085, Japan
| | - Yuuya Kasahara
- National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Saito-Asagi, Ibaraki, Osaka 567-0085, Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Satoshi Obika
- National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Saito-Asagi, Ibaraki, Osaka 567-0085, Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Masayasu Kuwahara
- Graduate School of Integrated Basic Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| |
Collapse
|
13
|
On the Determination of Uncertainty and Limit of Detection in Label-Free Biosensors. SENSORS 2018; 18:s18072038. [PMID: 29949904 PMCID: PMC6068557 DOI: 10.3390/s18072038] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/14/2018] [Accepted: 06/21/2018] [Indexed: 11/23/2022]
Abstract
A significant amount of noteworthy articles reviewing different label-free biosensors are being published in the last years. Most of the times, the comparison among the different biosensors is limited by the procedure used of calculating the limit of detection and the measurement uncertainty. This article clarifies and establishes a simple procedure to determine the calibration function and the uncertainty of the concentration measured at any point of the measuring interval of a generic label-free biosensor. The value of the limit of detection arises naturally from this model as the limit at which uncertainty tends when the concentration tends to zero. The need to provide additional information, such as the measurement interval and its linearity, among others, on the analytical systems and biosensor in addition to the detection limit is pointed out. Finally, the model is applied to curves that are typically obtained in immunoassays and a discussion is made on the application validity of the model and its limitations.
Collapse
|
14
|
|
15
|
Terra IAA, Sanfelice RC, Valente GT, Correa DS. Optical sensor based on fluorescent PMMA/PFO electrospun nanofibers for monitoring volatile organic compounds. J Appl Polym Sci 2017. [DOI: 10.1002/app.46128] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Idelma A. A. Terra
- Nanotechnology National Laboratory for Agriculture (LNNA); Embrapa Instrumentação; São Carlos SP 13560-970 Brazil
| | - Rafaela C. Sanfelice
- Departamento de Engenharia Química; Instituto de Ciências Tecnológicas e Exatas - ICTE, Universidade Federal do Triângulo Mineiro - UFTM; Uberaba MG 38064-300 Brazil
| | - Gustavo T. Valente
- São Carlos Institute of Physics; University of São Paulo; São Carlos, PO Box 369 SP 13560-970 Brazil
| | - Daniel S. Correa
- Nanotechnology National Laboratory for Agriculture (LNNA); Embrapa Instrumentação; São Carlos SP 13560-970 Brazil
| |
Collapse
|
16
|
Mikhelson KN, Peshkova MA. Advances and trends in ionophore-based chemical sensors. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4506] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
17
|
Ariza-Avidad M, Agudo-Acemel M, Salinas-Castillo A, Capitán-Vallvey L. Inkjet-printed disposable metal complexing indicator-displacement assay for sulphide determination in water. Anal Chim Acta 2015; 872:55-62. [DOI: 10.1016/j.aca.2015.02.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 02/12/2015] [Accepted: 02/16/2015] [Indexed: 02/07/2023]
|
18
|
Surdo S, Barillaro G. On the performance of label-free biosensors based on vertical one-dimensional photonic crystal resonant cavities. OPTICS EXPRESS 2015; 23:9192-9201. [PMID: 25968753 DOI: 10.1364/oe.23.009192] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this work three Fabry-Perot (FP) resonant cavities based on vertical silicon/air one-dimensional photonic crystals (1DPhCs) featuring different architectures and fluidic functionalities are designed, and the role of key design parameters on their ideal biosensing performance, i.e. surface sensitivity, limit of detection, range of linearity, is investigated. Numerical calculations of the transmission spectra of the 1DPhC FP resonant cavities using the Transfer Matrix Method (TMM), versus thickness of a biolayer simulating biomolecules (e.g. proteins) adsorbed on the 1DPhC FP cavity surfaces, show that biosensors with surface sensitivity up to 300 pm/nm, limit of detection down to 0.07 nm, and high linearity over the range 0-50 nm of biolayer thickness can be achieved.
Collapse
|
19
|
Gonçalves LCP, Da Silva SM, DeRose PC, Ando RA, Bastos EL. Beetroot-pigment-derived colorimetric sensor for detection of calcium dipicolinate in bacterial spores. PLoS One 2013; 8:e73701. [PMID: 24019934 PMCID: PMC3760816 DOI: 10.1371/journal.pone.0073701] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2013] [Accepted: 07/20/2013] [Indexed: 12/04/2022] Open
Abstract
In this proof-of-concept study, we describe the use of the main red beet pigment betanin for the quantification of calcium dipicolinate in bacterial spores, including Bacillus anthracis. In the presence of europium(III) ions, betanin is converted to a water-soluble, non-luminescent orange 1∶1 complex with a stability constant of 1.4 × 10(5) L mol(-1). The addition of calcium dipicolinate, largely found in bacterial spores, changes the color of the aqueous solution of [Eu(Bn)(+)] from orange to magenta. The limit of detection (LOD) of calcium dipicolinate is around 2.0 × 10(-6) mol L(-1) and the LOD determined for both spores, B. cereus and B. anthracis, is (1.1 ± 0.3)× 10(6) spores mL(-1). This simple, green, fast and low cost colorimetric assay was selective for calcium dipicolinate when compared to several analogous compounds. The importance of this work relies on the potential use of betalains, raw natural pigments, as colorimetric sensors for biological applications.
Collapse
Affiliation(s)
| | - Sandra Maria Da Silva
- Biosystems and Biomaterials Division, Chemical Science Technology Laboratory, National Institute of Standards and Technology. Gaithersburg, Maryland, United States of America
| | - Paul C. DeRose
- Biosystems and Biomaterials Division, Chemical Science Technology Laboratory, National Institute of Standards and Technology. Gaithersburg, Maryland, United States of America
| | - Rômulo Augusto Ando
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Erick Leite Bastos
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil
| |
Collapse
|
20
|
|