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Cetinkaya YN, Bulut O, Oktem HA, Yilmaz MD. Fluorescent silica nanoparticles as nano-chemosensors for the sequential detection of Pb 2+ ions and bacterial-spore biomarker dipicolinic acid (DPA) in aqueous solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123222. [PMID: 37542871 DOI: 10.1016/j.saa.2023.123222] [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: 04/28/2023] [Revised: 07/07/2023] [Accepted: 07/30/2023] [Indexed: 08/07/2023]
Abstract
Herein, we report fluorescein-labelled silica nanoparticles (FSNP) which serve as fluorescent nano-chemosensors for sequential detection of Pb2+ (which is a toxic heavy metal) and dipicolinic acid (DPA) (which is a distinctive indicator biomarker of bacterial spores) with high sensitivity and selectivity. The fluorescence of FSNP is quenched because of the complex formation between Pb2+ ions and surface amide groups, however, the fluorescence is recovered in contact with DPA, resulting from the association of DPA with surface bound Pb2+ ions. FSNP-Pb2+ complexes show high sensitivity towards DPA with a low detection limit of 850 nM which is approximately seventy times lower than the infectious dosage of bacterial spores (60 μM). Lateral flow test platform was further developed to show the applicability and practicability of our system.
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Affiliation(s)
- Yagmur Nur Cetinkaya
- Department of Materials Science and Nanotechnology, Graduate School of Natural and Applied Sciences, Konya Food and Agriculture University, 42080 Konya, Turkey
| | - Onur Bulut
- Department of Bioengineering, Faculty of Engineering and Architecture, Konya Food and Agriculture University, 42080 Konya, Turkey
| | - Huseyin Avni Oktem
- Department of Biological Sciences, Middle East Technical University, 06800 Ankara, Turkey; Nanobiz Technology Inc., Gallium Block No: 27 / 218, METU Technopolis, Ankara, Turkey
| | - M Deniz Yilmaz
- Department of Basic Sciences, Faculty of Engineering, Necmettin Erbakan University, 42140 Konya, Turkey; BITAM-Science and Technology Research and Application Center, Necmettin Erbakan University, 42140 Konya, Turkey.
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Zheng K, Yang L, Liu H, Chen X, Li X, Lu M. Flexible Stacked Perovskite Photodetectors for High-Efficiency Multicolor Fluorescence Detection. ACS APPLIED MATERIALS & INTERFACES 2023; 15:40799-40808. [PMID: 37585675 DOI: 10.1021/acsami.3c06793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
A flexible, multicolor detector based on stacked perovskite layers with graded band gaps was presented. Different perovskite layers generate a series of photocurrents corresponding to light intensities at different wavelengths. Experimentally, the flexible detector demonstrated acceptable long-term stability and temperature stability in the bending state. To demonstrate the advantages of the flexible multicolor detector in biological applications, a tubular-shaped multicolor fluorescence detector that embraces the sample cell was constructed. As a result, the detection limits of three kinds of CdTe quantum dots (QDs) with central wavelengths of 545, 625, and 730 nm were 0.52, 0.85, and 0.43 nM, respectively, which was significantly improved by more than 10 times compared to those of planar detectors. Additionally, the detector was able to detect three kinds of QDs simultaneously in a mixed solution, and the relative deviation was smaller than 10% compared to the preset concentration. These results demonstrate that the flexible stacked perovskite detector and the tubular-shaped detection configuration hold promise for the simultaneous fluorescent detection of multiple biomolecules.
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Affiliation(s)
- Kai Zheng
- School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Longkai Yang
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
| | - Haowei Liu
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
| | - Xinyi Chen
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
| | - Xin Li
- School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Miao Lu
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
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3
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Zhang H, sun M, wang Y, Yin L, Ma DL, Leung CH, Lu L. A time-resolved ratiometric luminescent anthrax biomarker nanosensor based on Ir(III) complex-doped coordination polymer network. J Mater Chem B 2022; 10:1853-1857. [DOI: 10.1039/d1tb02652f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, an Ir(III) complex-doped coordination polymer networks (Ir(III)@GMP-Eu3+) is firstly fabricated for the ratiometric luminescent detection of anthrax biomarker 2,6-dipicolinic acid (DPA) through time-resolved emission spectra (TRES) measurement. The detection...
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Lim S, Kuang Y, Ardoña HAM. Evolution of Supramolecular Systems Towards Next-Generation Biosensors. Front Chem 2021; 9:723111. [PMID: 34490210 PMCID: PMC8416679 DOI: 10.3389/fchem.2021.723111] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 08/09/2021] [Indexed: 11/17/2022] Open
Abstract
Supramolecular materials, which rely on dynamic non-covalent interactions, present a promising approach to advance the capabilities of currently available biosensors. The weak interactions between supramolecular monomers allow for adaptivity and responsiveness of supramolecular or self-assembling systems to external stimuli. In many cases, these characteristics improve the performance of recognition units, reporters, or signal transducers of biosensors. The facile methods for preparing supramolecular materials also allow for straightforward ways to combine them with other functional materials and create multicomponent sensors. To date, biosensors with supramolecular components are capable of not only detecting target analytes based on known ligand affinity or specific host-guest interactions, but can also be used for more complex structural detection such as chiral sensing. In this Review, we discuss the advancements in the area of biosensors, with a particular highlight on the designs of supramolecular materials employed in analytical applications over the years. We will first describe how different types of supramolecular components are currently used as recognition or reporter units for biosensors. The working mechanisms of detection and signal transduction by supramolecular systems will be presented, as well as the important hierarchical characteristics from the monomers to assemblies that contribute to selectivity and sensitivity. We will then examine how supramolecular materials are currently integrated in different types of biosensing platforms. Emerging trends and perspectives will be outlined, specifically for exploring new design and platforms that may bring supramolecular sensors a step closer towards practical use for multiplexed or differential sensing, higher throughput operations, real-time monitoring, reporting of biological function, as well as for environmental studies.
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Affiliation(s)
- Sujeung Lim
- Department of Chemical and Biomolecular Engineering, Samueli School of Engineering, University of California, Irvine, Irvine, CA, United States
| | - Yuyao Kuang
- Department of Chemical and Biomolecular Engineering, Samueli School of Engineering, University of California, Irvine, Irvine, CA, United States
| | - Herdeline Ann M Ardoña
- Department of Chemical and Biomolecular Engineering, Samueli School of Engineering, University of California, Irvine, Irvine, CA, United States.,Department of Biomedical Engineering, Samueli School of Engineering, University of California, Irvine, Irvine, CA, United States.,Department of Chemistry, School of Physical Sciences, University of California, Irvine, Irvine, CA, United States.,Sue & Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, CA, United States
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Cetinkaya Y, Yurt MNZ, Avni Oktem H, Yilmaz MD. A Monostyryl Boradiazaindacene (BODIPY)-based lanthanide-free colorimetric and fluorogenic probe for sequential sensing of copper (II) ions and dipicolinic acid as a biomarker of bacterial endospores. JOURNAL OF HAZARDOUS MATERIALS 2019; 377:299-304. [PMID: 31173979 DOI: 10.1016/j.jhazmat.2019.05.108] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 05/18/2019] [Accepted: 05/30/2019] [Indexed: 06/09/2023]
Abstract
A new catechol-substituted monostyryl boradiazaindacene (BODIPY)-based lanthanide-free colorimetric and fluorogenic probe was developed for the sequential detection of Cu2+ ions and dipicolinic acid (DPA), a distinctive biomarker of bacterial endospores, with high sensitivity and selectivity. In the presence of Cu2+ ions, the blue solution of the probe changes to cyan and the fluorescence is quenched, however, the cyan color changes to blue immediately and the fluorescence is restored on contact with DPA, resulting from competitive binding of DPA that interact with Cu2+ ions. A practical application by using Geobacillus stearothermophilus spores was further studied and as low as 1.0 x 105 spores were detected.
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Affiliation(s)
- Yagmur Cetinkaya
- Department of Bioengineering, Faculty of Engineering and Architecture, Konya Food and Agriculture University, 42080 Konya, Turkey
| | - Mediha Nur Zafer Yurt
- Research and Development Center for Diagnostic Kits (KIT-ARGEM), Konya Food and Agriculture University, 42080 Konya, Turkey; Institute of Science, Biotechnology Graduate Program, Konya Food and Agriculture University, Konya, 42080, Turkey
| | - Huseyin Avni Oktem
- Department of Biological Sciences, Middle East Technical University, 06800 Ankara, Turkey; Nanobiz R&D Ltd., Gallium Bld. No.18, METU Science Park, Ankara, Turkey
| | - M Deniz Yilmaz
- Department of Bioengineering, Faculty of Engineering and Architecture, Konya Food and Agriculture University, 42080 Konya, Turkey; Research and Development Center for Diagnostic Kits (KIT-ARGEM), Konya Food and Agriculture University, 42080 Konya, Turkey; Institute of Science, Biotechnology Graduate Program, Konya Food and Agriculture University, Konya, 42080, Turkey.
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Liao Z, Zhang Y, Li Y, Miao Y, Gao S, Lin F, Deng Y, Geng L. Microfluidic chip coupled with optical biosensors for simultaneous detection of multiple analytes: A review. Biosens Bioelectron 2019; 126:697-706. [DOI: 10.1016/j.bios.2018.11.032] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 11/13/2018] [Accepted: 11/19/2018] [Indexed: 11/15/2022]
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Yilmaz MD, Oktem HA. Eriochrome Black T–Eu3+ Complex as a Ratiometric Colorimetric and Fluorescent Probe for the Detection of Dipicolinic Acid, a Biomarker of Bacterial Spores. Anal Chem 2018; 90:4221-4225. [DOI: 10.1021/acs.analchem.8b00576] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- M. Deniz Yilmaz
- Department of Bioengineering, Faculty of Engineering and Architecture, Konya Food and Agriculture University, 42080 Konya, Turkey
- Research and Development Center for Diagnostic Kits (KIT-ARGEM), Konya Food and Agriculture University, 42080 Konya, Turkey
| | - Huseyin Avni Oktem
- Department of Biological Sciences, Middle East Technical University, 06800 Ankara, Turkey
- Nanobiz R&D Ltd., Gallium Bld. No.18, METU Science Park, Ankara, Turkey
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Chu T, Zhang F, Wang Y, Yang Y, Ng SW. A Novel Electrophoretic Deposited Coordination Supramolecular Network Film for Detecting Phosphate and Biophosphate. Chemistry 2017; 23:7748-7754. [DOI: 10.1002/chem.201700114] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Indexed: 12/29/2022]
Affiliation(s)
- Tianshu Chu
- School of Materials Science & Engineering; School of Chemistry and Chemical Engineering; Sun Yat-Sen University; Guangzhou 510275 P.R. China
| | - Feng Zhang
- School of Materials Science & Engineering; School of Chemistry and Chemical Engineering; Sun Yat-Sen University; Guangzhou 510275 P.R. China
| | - Yi Wang
- School of Materials Science & Engineering; School of Chemistry and Chemical Engineering; Sun Yat-Sen University; Guangzhou 510275 P.R. China
| | - Yangyi Yang
- School of Materials Science & Engineering; School of Chemistry and Chemical Engineering; Sun Yat-Sen University; Guangzhou 510275 P.R. China
| | - Seik Weng Ng
- Chemistry Department; Faculty of Science; King Abdulaziz University, PO Box 80203; Jeddah Saudi Arabia
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Donmez M, Yilmaz MD, Kilbas B. Fluorescent detection of dipicolinic acid as a biomarker of bacterial spores using lanthanide-chelated gold nanoparticles. JOURNAL OF HAZARDOUS MATERIALS 2017; 324:593-598. [PMID: 27852519 DOI: 10.1016/j.jhazmat.2016.11.030] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 10/05/2016] [Accepted: 11/09/2016] [Indexed: 06/06/2023]
Abstract
Gold nanoparticles (GNPs) functionalized with ethylenediamine-lanthanide complexes (Eu-GNPs and Tb-GNPs) were used for the selective fluorescent detection of dipicolinic acid (DPA), a unique biomarker of bacterial spores, in water. Particles were characterized by transmission electron microscopy and zeta potential measurements. The coordination of DPA to the lanthanides resulted in the enhancement of the fluorescence. A selective response to DPA was observed over the nonselective binding of aromatic ligands. The ligand displacement strategy were also employed for the ratiometric fluorescent detection of DPA. 4,4,4-trifluoro-1-(2-naphthyl)-1,3-butanedion (TFNB) was chosen as an antenna to synthesize ternary complexes. The addition of DPA on EuGNP:TFNB ternary complex quenched the initial emission of the complex at 615nm and increased the TFNB emission at 450nm when excited at 350nm. The results demonstrated that the ratiometric fluorescent detection of DPA was achieved by ligand displacement strategy.
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Affiliation(s)
- Mert Donmez
- Department of Chemistry, Faculty of Art and Sciences, Duzce University, Duzce 81620, Turkey
| | - M Deniz Yilmaz
- Department of Bioengineering, Faculty of Engineering and Architecture, Konya Food and Agriculture University, Konya 42080, Turkey.
| | - Benan Kilbas
- Department of Chemistry, Faculty of Art and Sciences, Duzce University, Duzce 81620, Turkey.
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Waller DF, Hew BE, Holdaway C, Jen M, Peckham GD. Rapid Detection of Bacillus anthracis Spores Using Immunomagnetic Separation and Amperometry. BIOSENSORS-BASEL 2016; 6:bios6040061. [PMID: 27999382 PMCID: PMC5192381 DOI: 10.3390/bios6040061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 12/09/2016] [Accepted: 12/14/2016] [Indexed: 01/04/2023]
Abstract
Portable detection and quantitation methods for Bacillus anthracis (anthrax) spores in pure culture or in environmental samples are lacking. Here, an amperometric immunoassay has been developed utilizing immunomagnetic separation to capture the spores and remove potential interferents from test samples followed by amperometric measurement on a field-portable instrument. Antibody-conjugated magnetic beads and antibody-conjugated glucose oxidase were used in a sandwich format for the capture and detection of target spores. Glucose oxidase activity of spore pellets was measured indirectly via amperometry by applying a bias voltage after incubation with glucose, horseradish peroxidase, and the electron mediator 2,2′-azino-bis (3-ethylbenzthiazoline-6-sulphonic acid). Target capture was mediated by polyclonal antisera, whereas monoclonal antibodies were used for signal generation. This strategy maximized sensitivity (500 target spores, 5000 cfu/mL), while also providing a good specificity for Bacillus anthracis spores. Minimal signal deviation occurs in the presence of environmental interferents including soil and modified pH conditions, demonstrating the strengths of immunomagnetic separation. The simultaneous incubation of capture and detection antibodies and rapid substrate development (5 min) result in short sample-to-signal times (less than an hour). With attributes comparable or exceeding that of ELISA and LFDs, amperometry is a low-cost, low-weight, and practical method for detecting anthrax spores in the field.
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Affiliation(s)
- David F Waller
- Black Ivory Biotech, Inc., P.O. Box 893128, Mililani, HI 96789, USA.
| | - Brian E Hew
- Black Ivory Biotech, Inc., P.O. Box 893128, Mililani, HI 96789, USA.
| | - Charlie Holdaway
- Holatron Systems, LLC., 833 Ilaniwai Street, Suite 2, Honolulu, HI 96813, USA.
| | - Michael Jen
- Mike Jen Software Services, 1035 Aster Ave #2103, Sunnyvale, CA 94086, USA.
| | - Gabriel D Peckham
- Black Ivory Biotech, Inc., P.O. Box 893128, Mililani, HI 96789, USA.
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Chowdhury B, Dutta R, Khatua S, Ghosh P. A Cyanuric Acid Platform Based Tripodal Bis-heteroleptic Ru(II) Complex of Click Generated Ligand for Selective Sensing of Phosphates via C-H···Anion Interaction. Inorg Chem 2015; 55:259-71. [PMID: 26653882 DOI: 10.1021/acs.inorgchem.5b02243] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A new bis-heteroleptic trinuclear Ru(II) complex (1[PF6]6) has been synthesized from electron deficient cyanuric acid platform based copper-catalyzed azide-alkyne cycloaddition, i.e., CuAAC click generated ligand, 1,3,5-tris [(2-aminoethyl-1H-1,2,3-triazol-4-yl)-pyridine]-1,3,5-triazinane-2,4,6-trione (L1). Complex 1[PF6]6 displays weak luminescence (ϕf = 0.002) at room temperature with a short lifetime of ∼5 ns in acetonitrile. It shows selective sensing of hydrogen pyrophosphate (HP2O7(3-)) through 20-fold enhanced emission intensity (ϕf = 0.039) with a 15 nm red shift in emission maxima even in the presence of a large excess of various competitive anions like F(-), Cl(-), AcO(-), BzO(-), NO3(-), HCO3(-), HSO4(-), HO(-), and H2PO4(-) in acetonitrile. Selective change in the decay profile as well as in the lifetime of 1[PF6]6 in the presence of HP2O7(3-) (108 ns) further supports its selectivity toward HP2O7(3-). UV-vis and photoluminescence titration profiles and corresponding Job's plot analyses suggest 1:3 host-guest stoichiometric binding between 1[PF6]6 and HP2O7(3-). High emission enhancement of 1[PF6]6 in the presence of HP2O7(3-) has resulted in the detection limit of the anion being as low as 0.02 μM. However, 1[PF6]6 shows selectivity toward higher analogues of phosphates (e.g., ATP, ADP, and AMP) over HP2O7(3-)/H2PO4(-) in 10% Tris HCl buffer (10 mM)/acetonitrile medium. Downfield shifting of the triazole C-H in a (1)H NMR titration study confirms that the binding of HP2O7(3-)/H2PO4(-) is occurring via C-H···anion interaction. The single crystal X-ray structure of complex 1 having NO3(-) counteranion, 1[NO3]6 shows binding of NO3(-) with complex 1 via C-H···NO3(-) interactions.
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Affiliation(s)
| | | | | | - Pradyut Ghosh
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
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Lehr J, Beer PD, Faulkner S, Davis JJ. Exploiting lanthanide luminescence in supramolecular assemblies. Chem Commun (Camb) 2014; 50:5678-87. [DOI: 10.1039/c4cc01138d] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
We review herein significant and recent work focused on the incorporation of luminescent lanthanides into switchable, supramolecular and surface bound assemblies.
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Affiliation(s)
- Joshua Lehr
- Department of Chemistry
- University of Oxford
- Oxford OX1 3TA, UK
| | - Paul D. Beer
- Department of Chemistry
- University of Oxford
- Oxford OX1 3TA, UK
| | | | - Jason J. Davis
- Department of Chemistry
- University of Oxford
- Oxford OX1 3TA, UK
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13
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HENARES TG, FUNANO SI, SUEYOSHI K, ENDO T, HISAMOTO H. Advancements in Capillary-Assembled Microchip (CAs-CHIP) Development for Multiple Analyte Sensing and Microchip Electrophoresis. ANAL SCI 2014; 30:7-15. [DOI: 10.2116/analsci.30.7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
| | | | - Kenji SUEYOSHI
- Graduate School of Engineering, Osaka Prefecture University
| | - Tatsuro ENDO
- Graduate School of Engineering, Osaka Prefecture University
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Bedini E, Forte G, De Castro C, Parrilli M, Dalla Cort A. A Route to Oligosaccharide-Appended Salicylaldehydes: Useful Building Blocks for the Synthesis of Metal–Salophen Complexes. J Org Chem 2013; 78:7962-9. [DOI: 10.1021/jo401148f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Emiliano Bedini
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Universitario
Monte Sant’Angelo, Via Cintia, 4
− 80126 Napoli, Italy
| | - Gianpiero Forte
- Dipartimento di Chimica and
IMC-CNR, Università La Sapienza,
Piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Cristina De Castro
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Universitario
Monte Sant’Angelo, Via Cintia, 4
− 80126 Napoli, Italy
| | - Michelangelo Parrilli
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Universitario
Monte Sant’Angelo, Via Cintia, 4
− 80126 Napoli, Italy
| | - Antonella Dalla Cort
- Dipartimento di Chimica and
IMC-CNR, Università La Sapienza,
Piazzale Aldo Moro 5, 00185 Roma, Italy
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15
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Lee I, Oh WK, Jang J. Screen-printed fluorescent sensors for rapid and sensitive anthrax biomarker detection. JOURNAL OF HAZARDOUS MATERIALS 2013; 252-253:186-191. [PMID: 23518174 DOI: 10.1016/j.jhazmat.2013.03.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 02/27/2013] [Accepted: 03/03/2013] [Indexed: 06/01/2023]
Abstract
Since the 2001 anthrax attacks, efforts have focused on the development of an anthrax detector with rapid response and high selectivity and sensitivity. Here, we demonstrate a fluorescence sensor for detecting anthrax biomarker with high sensitivity and selectivity using a screen-printing method. A lanthanide-ethylenediamine tetraacetic acid complex was printed on a flexible polyethersulfone film. Screen-printing deposition of fluorescent detecting moieties produced fluorescent patterns that acted as a visual alarm against anthrax.
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Affiliation(s)
- Inkyu Lee
- World Class University Program of Chemical Convergence for Energy & Environment, School of Chemical and Biological Engineering, Seoul National University, 599 Gwanangro, Gwanak-gu, Seoul 151-742, Republic of Korea
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16
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Highly selective and sensitive gold nanoparticle-based colorimetric assay for PO43− in aqueous solution. Talanta 2013; 106:73-8. [DOI: 10.1016/j.talanta.2012.11.064] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 11/20/2012] [Accepted: 11/25/2012] [Indexed: 11/20/2022]
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17
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Curiel D, Sánchez G, Más-Montoya M, Tárraga A, Molina P. Rational design of a fluorescent receptor for the recognition of anthrax biomarker dipicolinate. Analyst 2012; 137:5499-501. [DOI: 10.1039/c2an35895f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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