1
|
Srivastava A, Kumar G, Kumar P, Srikrishna S, Chandra P, Singh VP. Thiazole-Based Silver Ion Sensor for Sequential Colorimetric Visualization of Epinephrine in the Brain Tissues of an Alzheimer's Disease Model of Mouse. ACS APPLIED BIO MATERIALS 2024; 7:3271-3282. [PMID: 38654595 DOI: 10.1021/acsabm.4c00229] [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] [Indexed: 04/26/2024]
Abstract
A thiazole-based probe, N'-((2-aminothiazol-5-yl)methylene)benzohydrazide (TBH), has been efficiently synthesized and characterized for the selective and sensitive detection of the neurotransmitter epinephrine (EP). The sensing strategy is based on the use of TBH for sequential colorimetric sensing of Ag+ and EP via in situ formation of Ag nanoparticles (Ag NPs) from the TBH-Ag+ complex. The generated Ag NPs lead to a bathochromic shift in absorption maximum and a change in color of the solution from light brown to reddish brown. TBH-Ag+ shows remarkable selectivity toward EP versus other drugs, common cations, anions, and some biomolecules. Moreover, TBH-Ag+ has a low detection limit for EP at 1.2 nM. The coordination of TBH-Ag+ has been proposed based on Job's plot, Fourier transform infrared spectroscopy (FT-IR), high-resolution mass spectrometry (HRMS), 1H NMR titration, X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray analysis (EDAX), and density functional theory (DFT) studies. The composition and morphology of the generated Ag NPs have been analyzed by XPS, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and dynamic light scattering (DLS). The proposed sensing mechanism for EP has been supported by XPS of Ag after the reaction. Further, the sensitivity of TBH-Ag+ toward EP in brain tissues of an Alzheimer's disease model of mouse has been evaluated. A thorough comparison was done for evaluation of the proposed method.
Collapse
Affiliation(s)
- Ananya Srivastava
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Gautam Kumar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Prabhat Kumar
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - S Srikrishna
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Pranjal Chandra
- School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Vinod P Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| |
Collapse
|
2
|
Liu C, Qian Z, Chen Z. A dual channel fluorescence tongue for catechin recognition based on the MnO 2 nanorods-Amplex Red- o-phenylenediamine reaction system. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:6476-6481. [PMID: 37987166 DOI: 10.1039/d3ay01748f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Here, we report a dual-channel fluorescence sensor array for catechin discrimination based on the MnO2 nanorods (NRs)-Amplex Red (AR)-o-phenylenediamine (OPD) catalytic reaction system. MnO2 catalyzes both OPD and AR oxidation, and the fluorescence intensity values generated at 550 nm and 590 nm provide "fingerprints" for the sensor array. Different catechins have varying degrees of inhibitory effects on the MnO2 NRs-AR-OPD catalytic reaction system, thus obtaining unique fluorescence response fingerprints. Through linear discriminant analysis (LDA), the sensor array can not only successfully distinguish 5 catechins with concentrations as low as 500 nM and different concentrations of catechins, but also realize the identification of catechin mixtures. Notably, this method only requires the preparation of a single nanomaterial that catalyzes two substrates simultaneously and can generate two different fluorescence signal outputs, greatly facilitating the design of the sensor array.
Collapse
Affiliation(s)
- Chang Liu
- College of Chemistry, University of California, Berkeley, CA, 94720, USA
| | - Zhenni Qian
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
| | - Zhengbo Chen
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
| |
Collapse
|
3
|
Pypin AA, Shik AV, Stepanova IA, Doroshenko IA, Podrugina TA, Beklemishev MK. A Reaction-Based Optical Fingerprinting Strategy for the Recognition of Fat-Soluble Samples: Discrimination of Motor Oils. SENSORS (BASEL, SWITZERLAND) 2023; 23:7682. [PMID: 37765739 PMCID: PMC10535383 DOI: 10.3390/s23187682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/01/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023]
Abstract
Optical "fingerprints" are widely used for chemometrics-assisted recognition of samples of different types. An emerging trend in this area is the transition from obtaining "static" spectral data to reactions analyzed over time. Indicator reactions are usually carried out in aqueous solutions; in this study, we developed reactions that proceed in an organic solvent, thereby making it possible to recognize fat-soluble samples. In this capacity, we used 5W40, 10W40, and 5W30 motor oils from four manufacturers, with six samples in total. The procedure involved mixing a dye, sample, and reagents (HNO3, HCl, or tert-butyl hydroperoxide) in an ethanolic solution in a 96-well plate and measuring absorbance or near-infrared fluorescence intensity every several minutes for 20-55 min. The obtained photographic images were processed by linear discriminant analysis (LDA) and the k-nearest neighbors algorithm (kNN). Discrimination accuracy was evaluated by a validation procedure. A reaction of oxidation of a dye by nitric acid allowed us to recognize all six samples with 100% accuracy for LDA. Merging of data from the four reactions that did not provide complete discrimination ensured an accuracy of 93% for kNN. The newly developed indicator systems have good prospects for the discrimination of other fat-soluble samples. Overall, the results confirm the viability of the kinetics-based discrimination strategy.
Collapse
Affiliation(s)
| | | | | | | | | | - Mikhail K. Beklemishev
- Department of Chemistry, M.V. Lomonosov Moscow State University, GSP-1, Leninskie Gory 1–3, Moscow 119991, Russia; (A.A.P.); (A.V.S.); (I.A.S.); (I.A.D.); (T.A.P.)
| |
Collapse
|
4
|
Shik AV, Skorobogatov EV, Bliznyuk UA, Chernyaev AP, Avdyukhina VM, Yu Borschegovskaya P, Zolotov SA, Baytler MO, Doroshenko IA, Podrugina TA, Beklemishev MK. Estimation of doses absorbed by potato tubers under electron beam or X-ray irradiation using an optical fingerprinting strategy. Food Chem 2023; 414:135668. [PMID: 36841105 DOI: 10.1016/j.foodchem.2023.135668] [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: 09/17/2022] [Revised: 01/04/2023] [Accepted: 02/08/2023] [Indexed: 02/15/2023]
Abstract
High-energy electron beam and X-ray processing of foods can be used for extending their storage life and for combating pests and pathogens. Several instrumental techniques are used to estimate irradiation doses in foods, but these methods are complex and laborious, require expensive equipment, and do not always allow to determine low doses. This study was aimed at developing simple methods for detecting irradiation in potato tubers and for dose estimation. We used a "fingerprinting" strategy that does not involve quantitation of any compound; instead, the rate of indicator reactions involving carbocyanine dyes is measured. The dye content was monitored by its near-infrared fluorescence intensity and visible-light absorption. Potatoes not subjected to treatment and those irradiated with different doses (10, 100, 1000, 5000, or 10,000 Gray) could be distinguished by linear discriminant analysis. Thus, the order of magnitude of the absorbed dose can be estimated with 89% ± 3% accuracy for a mixture of tubers of two potato varieties irradiated with an electron beam or with 95% ± 8% accuracy for one variety irradiated with an X-ray source.
Collapse
Affiliation(s)
- Anna V Shik
- Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia.
| | - Evgenii V Skorobogatov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia
| | - Ulyana A Bliznyuk
- Physics Department, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia; Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia.
| | - Alexander P Chernyaev
- Physics Department, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia; Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia.
| | | | - Polina Yu Borschegovskaya
- Physics Department, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia; Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia.
| | - Sergey A Zolotov
- Physics Department, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia; Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia
| | - Maksim O Baytler
- Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia
| | - Irina A Doroshenko
- Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia
| | - Tatyana A Podrugina
- Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia.
| | - Mikhail K Beklemishev
- Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991 GSP-1, Russia.
| |
Collapse
|