1
|
Saleh SM, Altaiyah S, Ali R. Dual-emission ciprofloxacin-gold nanoclusters enable ratiometric sensing of Cu 2+, Al 3+, and Hg 2. Mikrochim Acta 2024; 191:199. [PMID: 38483615 DOI: 10.1007/s00604-024-06265-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 02/29/2024] [Indexed: 03/19/2024]
Abstract
An innovative triple optical sensor is presented that utilizes gold nanoclusters (GNCs) stabilized with ciprofloxacin (CIP) and bovine serum albumin (BSA). The sensor is designed to identify three critical metal ions, namely Cu2+, Al3+, and Hg2+. Under 360 nm excitation, the synthesized CIP-BSA-GNCs demonstrate dual fluorescence emission with peaks at 448 nm (blue) and 612 nm (red). The red emission is associated with the interior of the CIP-BSA-GNCs, whereas the blue emission results from the surface-bound CIP molecules. The sensitive and selective fluorescent nanosensor CIP-BSA-GNCs were employed to detect Cu2+, Al3+, and Hg2+ ions. Cu2+ effectively quenched the fluorescence intensity of the CIP-BSA-GNCs at both peaks via the internal charge transfer mechanism (ICT). Cu2+ could be detected within the concentration range 1.13 × 10-3 to 0.05 µM, with a detection limit of 0.34 nM. Al3+ increased the intensity of CIP fluorescence at 448 nm via the chelation-induced fluorescence enhancement mechanism. The fluorescence intensity of the core CIP-BSA-GNCs at 612 nm was utilized as a reference signal. Thus, the ratiometric detection of Al3+ succeeded with a limit of detection of 0.21 nM within the dynamic range 0.69 × 10-3 to 0.07 µM. Hg2+ effectively quenched the fluorescence intensity of the CIP-BSA-GNCs at 612 nm via the metallophilic interaction mechanism. The fluorescence intensity of CIP molecules at 448 nm was utilized as a reference signal. This allowed for the ratiometric detection of Hg2+ with a detection limit of 0.7 nM within the concentration range 2.3 × 10-3 to 0.1 µM.
Collapse
Affiliation(s)
- Sayed M Saleh
- Department of Chemistry, College of Science, Qassim University, 51452, Buraidah, Saudi Arabia.
- Department of Petroleum Refining and Petrochemical Engineering Department, Faculty of Petroleum and Mining Engineering, Suez University, Suez, 43721, Egypt.
| | - Shahad Altaiyah
- Department of Chemistry, College of Science, Qassim University, 51452, Buraidah, Saudi Arabia
| | - Reham Ali
- Department of Chemistry, College of Science, Qassim University, 51452, Buraidah, Saudi Arabia
- Chemistry Department, Faculty of Science, Suez University, Suez, 43518, Egypt
| |
Collapse
|
2
|
Andreeva VD, Ehlers H, R C AK, Presselt M, J van den Broek L, Bonnet S. Combining nitric oxide and calcium sensing for the detection of endothelial dysfunction. Commun Chem 2023; 6:179. [PMID: 37644120 PMCID: PMC10465535 DOI: 10.1038/s42004-023-00973-8] [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: 02/01/2023] [Accepted: 08/01/2023] [Indexed: 08/31/2023] Open
Abstract
Cardiovascular diseases are the leading cause of death worldwide and are not typically diagnosed until the disease has manifested. Endothelial dysfunction is an early, reversible precursor in the irreversible development of cardiovascular diseases and is characterized by a decrease in nitric oxide production. We believe that more reliable and reproducible methods are necessary for the detection of endothelial dysfunction. Both nitric oxide and calcium play important roles in the endothelial function. Here we review different types of molecular sensors used in biological settings. Next, we review the current nitric oxide and calcium sensors available. Finally, we review methods for using both sensors for the detection of endothelial dysfunction.
Collapse
Affiliation(s)
| | - Haley Ehlers
- Mimetas B.V., De limes 7, 2342 DH, Oegstgeest, The Netherlands
- Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Aswin Krishna R C
- Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
| | - Martin Presselt
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Str. 9, 07745, Jena, Germany
- Sciclus GmbH & Co. KG, Moritz-von-Rohr-Str. 1a, 07745, Jena, Germany
| | | | - Sylvestre Bonnet
- Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands.
| |
Collapse
|
3
|
Barot YB, Anand V, Vyas S, Mishra R. Paper-based Device for Nanomolar Detection of Cd2+ Using AIEE-Active Imidazolium Ionic Liquid Functionalized Phenothiazine based Schiff-Base. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
|
4
|
Ali R, Ghannay S, Messaoudi S, Alminderej FM, Aouadi K, Saleh SM. A Reversible Optical Sensor Film for Mercury Ions Discrimination Based on Isoxazolidine Derivative and Exhibiting pH Sensing. BIOSENSORS 2022; 12:1028. [PMID: 36421146 PMCID: PMC9688351 DOI: 10.3390/bios12111028] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/11/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
We developed a new optical sensor for tracing Hg(II) ions. The detection affinity examines within a concentration range of 0-4.0 µM Hg(II). The sensor film is based on Methyl 2-hydroxy-3-(((2S,2'R,3a'S,5R)-2-isopropyl-5,5'-dimethyl-4'-oxotetrahydro-2'H-spiro[cy-clohexane-1,6'-im-idazo[1,5-b]isoxazol]-2'-yl)methyl)-5-methylbenzoate (IXZD). The novel synthesized compound could be utilized as an optical turn-on chemosensor for pH. The emission intensity is highly enhanced for the deprotonated form concerning the protonated form. IXZD probe has a characteristic fluorescence peak at 481 nm under excitation of 351 nm with large Stocks shift of approximately 130 nm. In addition, the binding process of IXZD:Hg(II) presents a 1:1 molar ratio which is proved by the large quench of the 481 nm emission peak of IXZD and the growth of a new emission peak at 399 nm (blue shift). The binding configurations with one Hg(II) cation and its electronic characteristics were investigated by applying the Density Functional Theory (DFT) and the time-dependent DFT (TDDFT) calculations. Density functional theory (DFT) and the time-dependent DFT (TDDFT) theoretical results were provided to examine Hg(II)-IXZD structures and their electronic properties in solution. The developed chemical sensor was offered based on the intramolecular charge transfer (ICT) mechanism. The sensor film has a significantly low limit of detection (LOD) for Hg(II) of 0.025 μM in pH 7.4, with a relative standard deviation RSDr (1%, n = 3). Lastly, the IXZD shows effective binding affinity to mercury ions, and the binding constant Kb was estimated to be 5.80 × 105 M-1. Hence, this developed optical sensor film has a significant efficiency for tracing mercury ions based on IXZD molecule-doped sensor film.
Collapse
Affiliation(s)
- Reham Ali
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
- Chemistry Department, Faculty of Science, Suez University, Suez 43518, Egypt
| | - Siwar Ghannay
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
| | - Sabri Messaoudi
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
- Faculty of Sciences of Bizerte, Carthage University, Bizerte 7021, Tunisia
| | - Fahad M. Alminderej
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
| | - Kaïss Aouadi
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
- Faculty of Science of Monastir, University of Monastir, Avenue of the Environment, Monastir 5019, Tunisia
| | - Sayed M. Saleh
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
- Chemistry Branch, Department of Science and Mathematics, Faculty of Petroleum and Mining Engineering, Suez University, Suez 43721, Egypt
| |
Collapse
|
5
|
Kumar A, Virender, Saini M, Mohan B, Shayoraj, Kamboj M. Colorimetric and Fluorescent Schiff Base Sensors for Trace Detection of Pollutants and Biologically Significant Cations: A Review (2010-2021). Microchem J 2022. [DOI: 10.1016/j.microc.2022.107798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
6
|
Saleh SM, Almotiri MK, Ali R. Green synthesis of highly luminescent gold nanoclusters and their application in sensing Cu(II) and Hg(II). J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113719] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
7
|
Novel thiazolium ionic liquids-tagged bicyclo-palladium(II) Schiff base complexes; Synthesis, characterization and in vitro cytotoxicity toward ovarian cancer. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131594] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
8
|
Alfaifi MY, Shati AA, Elbehairi SEI, Elshaarawy RFM, Gad EM. Fine-tuning of the pharmacological potential of novel thiazolium ionic liquids by anion alteration. RSC Adv 2021; 12:458-469. [PMID: 35424514 PMCID: PMC8978639 DOI: 10.1039/d1ra07128a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 11/15/2021] [Indexed: 12/18/2022] Open
Abstract
A novel series of thiazolium ionic liquids (TILs) bound to chloride (2a–c), tetrafluoroborate (BF4) (3a–c), and bis-(trifluoromethanesulfonimide) (Tf2N) anions (4a–c) was synthesized and their physicochemical characteristics were investigated using various microanalytical techniques. The pharmacological potential of the new TILs was assessed as chemotherapeutic agents for bacterial infections and ovarian cancer (SKOV-3). Notably, ILs with the same cations become more bactericidal upon their binding with the strongest chaotropic anion (TN2f). The in vitro toxicity of the TILs toward ovarian carcinoma cell lines (SKOV-3) and normal human skin fibroblast cells (HSF) revealed that all tested TILs have the capacity to induce a dose- and time-dependent decline in SKOV-3 cell viability, with Tf2N-linked TILs (4a–c) having a preferable efficacy. In addition, the new compounds showed excellent selectivity for cancer cells (SKOV-3) over healthy cells (HSF). [iPBzTh][Tf2N] (4b) is the most cytotoxic and specific one and may act as a promising anti-ovarian cancer agent. A novel series of thiazolium ionic liquids (TILs) bound to chloride (2a–c), tetrafluoroborate (BF4) (3a–c), and bis-(trifluoromethanesulfonimide) (Tf2N) anions (4a–c) was synthesized and their physicochemical characteristics were investigated.![]()
Collapse
Affiliation(s)
- Mohammad Y Alfaifi
- Biology Department, Faculty of Science, King Khalid University 9004 Abha Saudi Arabia
| | - Ali A Shati
- Biology Department, Faculty of Science, King Khalid University 9004 Abha Saudi Arabia
| | - Serag Eldin I Elbehairi
- Biology Department, Faculty of Science, King Khalid University 9004 Abha Saudi Arabia.,Cell Culture Lab, Egyptian Organization for Biological Products and Vaccines (VACSERA Holding Company) Giza 12311 Egypt
| | - Reda F M Elshaarawy
- Chemistry Department, Faculty of Science, Suez University 43533 Suez Egypt.,Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine Universität Düsseldorf Düsseldorf Germany
| | - Emad M Gad
- Chemistry Department, Faculty of Science, Suez Canal University Ismalia Egypt
| |
Collapse
|
9
|
Serag WM, Zahran F, Abdelghany YM, Elshaarawy RF, Abdelhamid MS. Synthesis and molecular docking of hybrids ionic azole Schiff bases as novel CDK1 inhibitors and anti-breast cancer agents: In vitro and in vivo study. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
10
|
Mahdy AR, Alfaifi MY, El-Gareb MS, Farouk N, Elshaarawy RF. Design, synthesis, and physicochemical characterization of new aminothiohydantoin Schiff base complexes for cancer chemotherapy. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
11
|
Hybrid organoruthenium(II) complexes with thiophene-β-diketo-benzazole ligands: Synthesis, optical properties, CT-DNA interactions and anticancer activity. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
12
|
Ali R, Ali IA, Messaoudi S, Alminderej FM, Saleh SM. An effective optical chemosensor film for selective detection of mercury ions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116122] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
13
|
Alkabli J, Rizk MA, Elshaarawy RFM, El-Sayed WN. Ionic chitosan Schiff bases supported Pd(II) and Ru(II) complexes; production, characterization, and catalytic performance in Suzuki cross-coupling reactions. Int J Biol Macromol 2021; 184:454-462. [PMID: 34157331 DOI: 10.1016/j.ijbiomac.2021.06.105] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 01/01/2023]
Abstract
Taking the advantage of multifunctional characteristics of chitosan (CS), we have developed new scaffolds (imidazolium-vanillyl-chitosan Schiff bases (IVCSSBs)) for supporting Pd(II) and Ru(II) ions in catalyzing Suzuki coupling reactions. The structures of new materials were described based on their elemental, spectral, thermal, and microscopic analysis. The strong interactions between the binding sites of IVCSSB ligand (OH, H-C=N, and OCH3 groups) and Pd(II) ions resulted in the formation of an excellent heterogeneous catalyst (Pd(II)IVCSSB1) with amazing catalytic activity (up to 99%) and highly stable in the reaction medium. The reusability experiments for Pd(II)IVCSSB1 revealed that there is no appreciable decrease in its catalytic activity even after five consecutive operation runs. Furthermore, this heterogeneous catalyst showed an excellent selectivity toward the cross-coupling reaction where no homo-coupling byproducts were observed in the 1H NMR spectra of the obtained products. Consequently, the present ionic catalytic system may open a new window for a novel generation of ionic bio-based catalysts for organic transformations.
Collapse
Affiliation(s)
- J Alkabli
- Department of Chemistry, College of Sciences and Arts - Alkamil, University of Jeddah, Jeddah 23218, Saudi Arabia
| | - Moustafa A Rizk
- Chemistry Department, College of Science and Arts-Sharurah, Najran University, Sharurah, Saudi Arabia; Department of Chemistry, Faculty of Science, Suez Canal University, Ismailia, Egypt
| | - Reda F M Elshaarawy
- Department of Chemistry, Faculty of Science, Suez University, 43533 Suez, Egypt; Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine Universität Düsseldorf, Düsseldorf, Germany.
| | - W N El-Sayed
- Department of Chemistry, College of Sciences and Arts - Alkamil, University of Jeddah, Jeddah 23218, Saudi Arabia; Department of Chemistry, Faculty of Science, Suez University, 43533 Suez, Egypt.
| |
Collapse
|
14
|
El-Sayed W, Alkabli J, Aloqbi A, Elshaarawy RF. Optimization enzymatic degradation of chitosan into amphiphilic chitooligosaccharides for application in mitigating liver steatosis and cholesterol regulation. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
15
|
A Highly Selective Turn-on Fluorescent and Naked-eye Colourimetric Dual-channel Probe for Cyanide Anions Detection in Water Samples. J Fluoresc 2021; 31:437-446. [PMID: 33410088 DOI: 10.1007/s10895-020-02677-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 12/28/2020] [Indexed: 01/17/2023]
Abstract
A highly selective turn-on fluorescent and naked-eye colourimetric dual-channel probe for cyanide anions (CN-) has been designed and characterized. In the mixed solution (DMSO / H2O, 9:1, v / v), only CN- could cause an increase in the UV absorption intensity and the corresponding fluorescence intensity increased, and other anions had no significant effect on the probe. After treatment with cyanide in the probe solution, the solution showed a noticeable colour change, from light yellow to purple. Moreover, a fluorescence spectrophotometer can be used to observe that the fluorescence intensity of the solution is significantly enhanced. The response of the colourimetric and fluorescent dual-channel probe to CN- was attributed to nucleophilic addition, and the mechanism was determined by 1H NMR spectroscopy. In addition, this probe was used to detect CN- in actual water samples, including river water, drinking water, and tap water. The spiked CN- recovery rate is very high (97.2%-100.06%), and analytical precision is also very high (RSD < 2%), which shows its feasibility and reliability for detecting cyanide ions in actual water samples.
Collapse
|
16
|
Ali R, Alminderej FM, Messaoudi S, Saleh SM. Ratiometric ultrasensitive optical chemisensor film based antibiotic drug for Al(III) and Cu(II) detection. Talanta 2021; 221:121412. [PMID: 33076057 DOI: 10.1016/j.talanta.2020.121412] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/11/2020] [Accepted: 07/13/2020] [Indexed: 12/17/2022]
Abstract
Herein, we developed and designed a novel ratiometric optical chemisensor film for determining Al(III) and Cu(II) in low concentration ranges. The chemisensor film consists of (a) antibacterial drug Ciprofloxacin (CPFX) [1-cyclopropyl-6-fluoro1,4-dihydro-4-oxo-7-(piperaziny-l-yl) quinolone-3carboxylic acid] and (b) a reference dye 5,10,15,20- tetrakis (pentafluorophenyl) porphyrin (TFPP) in a polyvinyl chloride (PVC) matrix. PVC was applied as a homogeneous system for mixing CPFX and TFPP. The emission intensity of the CPFX in the PVC matrix varies depending on the concentrations of the Al(III) and Cu(II) ions. When the sensor film is immersed in different Al(III) concentrations, a significant fluorescence enhancement of the CPFX at (427 nm) is observed. Furthermore, the fluorescence intensity of the red emission of the TFPP dye at (644 nm) does not alter. However, in the presence of Cu(II) ions, a considerable emission quenching of the CPFX peak at (427 nm) is observed. PVC provides a great permeability and penetration facilities of dissolved ions that make the sensor film sensitive to Al(III) or Cu(II) changes outside the matrix. The film displays immense sensitivity depending on their distinctive optical characteristics of CPFX and detection capabilities within a low detection limit LOD for Al(III) and Cu(II). The LOD values were estimated to be 2.05 x 10-7 M and 1.04 x 10-7 M respectively with a relative standard deviation RSDr (1%, n=3). Density functional theory (DFT) and the time-dependent DFT (TDDFT) theoretical calculations were performed to study Cu(II) and Al(III) complexation structures and their electronic properties in solution and in the sensor film. The interference of the chemisensor film was examined using different cations and the chemisensor provides significant selectivity. We develop a new ratiometric chemisensor based on PVC polymer film for Al(III) and Cu(II) detection.
Collapse
Affiliation(s)
- Reham Ali
- Department of Chemistry, Faculty of Science, Suez University, 43518 Suez, Egypt; Department of Chemistry, College of Science, Qassim University, Buraidah, 51452, Saudi Arabia
| | - Fahad M Alminderej
- Department of Chemistry, College of Science, Qassim University, Buraidah, 51452, Saudi Arabia
| | - Sabri Messaoudi
- Department of Chemistry, College of Science, Qassim University, Buraidah, 51452, Saudi Arabia; Carthage University, Faculty of Sciences of Bizerte, 7021, Jarzouna, Tunisia
| | - Sayed M Saleh
- Department of Chemistry, College of Science, Qassim University, Buraidah, 51452, Saudi Arabia; Chemistry Branch, Department of Science and Mathematics, Faculty of Petroleum and Mining Engineering, Suez University, 43721, Suez, Egypt.
| |
Collapse
|
17
|
Mudliar NH, Dongre PM, Singh PK. A Heparin based dual ratiometric sensor for Thrombin. Int J Biol Macromol 2020; 167:1371-1378. [PMID: 33202269 DOI: 10.1016/j.ijbiomac.2020.11.091] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/05/2020] [Accepted: 11/12/2020] [Indexed: 02/06/2023]
Abstract
Thrombin is an important enzyme that plays a pivotal role in the blood clotting pathways. An imbalance in the activity of this enzyme is clinically known to be associated with various diseases, such as thrombosis, inflammation, atherosclerosis, and haemophilia, suggesting the need to devise sensors for Thrombin detection. However, the majority of the fluorescence-based Thrombin assays rely on fluorescence labelling assays or Thrombin specific recognition biomolecules, such as, aptamers or antibody which requires sophisticated techniques and makes it very expensive. Herein, we report a simple, selective, sensitive and label-free fluorescence detection scheme for Thrombin which is based on the interaction between Thrombin and a fluorescent complex of Heparin with a molecular rotor dye, Thioflavin-T. The detection scheme exploits selective interaction between cationic Thrombin and anionic Heparin to modulate the monomer-aggregate equilibrium of the Thioflavin-T-Heparin system. Importantly, the present system offers a ratiometric response that has the ability for robust quantification of Thrombin concentration even in complex medium. The involvement of all commercially available components is a crucial advantage of this detection scheme. Further, the detection scheme also shows reasonable response in diluted serum matrix.
Collapse
Affiliation(s)
- Niyati H Mudliar
- Department of Biophysics, University of Mumbai, Vidyanagari, Kalina, Mumbai 400098, India
| | - Prabhakar M Dongre
- Department of Biophysics, University of Mumbai, Vidyanagari, Kalina, Mumbai 400098, India
| | - Prabhat K Singh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India.
| |
Collapse
|
18
|
The natural compound chrysosplenol-D is a novel, ultrasensitive optical sensor for detection of Cu(II). J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112558] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
19
|
Saini V, Krishnan R, Khungar B. Exploration of fluorescence behavior of an imidazolium-based chemosensor in solution and in the solid state and its turn-on response to Al3+ in pure aqueous medium. Photochem Photobiol Sci 2020; 19:931-942. [DOI: 10.1039/c9pp00477g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An imidazolium-based quinoline framework is constructed, and its fluorescence behaviour studies with fluorescence turn-on chemosensory response to the selective detection of Al3+ in aqueous medium are discussed in detail.
Collapse
Affiliation(s)
- Vaishali Saini
- Department of Chemistry
- Birla Institute of Technology and Science Pilani
- Pilani
- India
| | - Rangan Krishnan
- Department of Chemistry
- Birla Institute of Technology and Science Pilani
- Secunderabad
- India
| | - Bharti Khungar
- Department of Chemistry
- Birla Institute of Technology and Science Pilani
- Pilani
- India
| |
Collapse
|
20
|
Roopa, Kumar N, Kumar M, Bhalla V. Design and Applications of Small Molecular Probes for Calcium Detection. Chem Asian J 2019; 14:4493-4505. [PMID: 31549484 DOI: 10.1002/asia.201901149] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Indexed: 12/16/2022]
Abstract
The physiological significance of calcium ions such as the role in cellular signalling, cell growth, etc. have driven the development of methods to detect and monitor the level of Ca2+ ions, both in vivo and in vitro. Although various approaches for the detection of calcium ions have been reported, methods based on small molecular fluorescent probes have unique advantages including small probe size, easy monitoring of detection processes and applicability in biological systems. In this review article, we will discuss the progress in the development of Ca2+ -binding fluorescent probes by taking into account the types of chelating groups that have been employed for Ca2+ binding.
Collapse
Affiliation(s)
- Roopa
- Department of Chemical Sciences, IKG-Punjab Technical University, Kapurthala, 144603, Punjab, India
| | - Naresh Kumar
- Department of Chemistry, Kanya Maha Vidyalaya, Jalandhar, 144004, India
| | - Manoj Kumar
- Department of Chemistry, UGC Sponsored Centre for Advanced Studies-1, Guru Nanak Dev University, Amritsar-, 143005, Punjab, India
| | - Vandana Bhalla
- Department of Chemistry, UGC Sponsored Centre for Advanced Studies-1, Guru Nanak Dev University, Amritsar-, 143005, Punjab, India
| |
Collapse
|
21
|
Alahmadi NS, Elshaarawy RF. Novel aminothiazolyl-functionalized phosphonium ionic liquid as a scavenger for toxic metal ions from aqueous media; mining to useful antibiotic candidates. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
22
|
Ultrasensitive Optical Chemosensor for Cu(II) Detection. Int J Anal Chem 2019; 2019:7381046. [PMID: 31031812 PMCID: PMC6457299 DOI: 10.1155/2019/7381046] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 01/28/2019] [Accepted: 02/28/2019] [Indexed: 11/26/2022] Open
Abstract
Herein, the main objective of this research is to design and synthesize a novel optical chemosensor, 2,6-Bis(4-dimethylaminophenyl)-4-(dicyanomethylene)-cyclohexane-1,1-dicarbo-nitrile (BDC), for detection of one of the most significant metal ions Cu(II). This novel fluorescent chemosensor exhibits unique optical properties with large Stokes shift (about 170 nm) approximately. The fluorescence and UV–vis absorption performance among the BDC probe and Cu(II) ions were examined in 1:9 (v/v) methanol–HEPES buffer (pH = 7.2) solution. Also, BDC displays high selectivity for Cu(II) concerning other cations. Moreover, this probe provides high selectivity and sensitivity based on their fluorescence properties and recognition abilities within a detection limit of the Cu(II) contents (LOD 2.3 x 10−7 M). The suggested mechanism of BDC sensor is attributed to the chelation process with Cu(II), to establish a 1:1 metal-ligand ratio complex with a binding constant (Kbind = 7.16 x 104 M−1). The detection process is accompanied by quenching the main emission peak of the BDC at 571 nm. All the experimental data were collected to investigate the effects of several important parameters such as reversibility and the concentration limits. Besides, we study the interference of various metal ions on selectivity and detection capacity of this significant Cu (II) ion. This novel chemosensor shows ultrasensitive, fast tracing of Cu(II) in the physiological pH range (pH 7.2) and therefore may propose a novel promising method for the investigation of the biological functions of Cu(II) in living cells.
Collapse
|
23
|
Saleh SM, Elkady EM, Ali R, Alminderej F, Mohamed TA. Novel chemical sensor for detection Ca(II) ions based on ferutinin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 205:264-268. [PMID: 30029188 DOI: 10.1016/j.saa.2018.07.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/27/2018] [Accepted: 07/11/2018] [Indexed: 05/26/2023]
Abstract
A new optical chemical sensor based on medicinal compound, jaeschkeanadiol p-hydroxyben-zoate (Ferutinin), has been designed and utilized for Ca(II) ions detections. This natural optical sensor exhibits immense selectivity including fluorescence and absorption ratiometric for Ca(II) ions within precious physiological pH range. Further, the chelation process of the Ca(II) ions with the medicinal optical sensor ferutinin yields a 1:1 (metal: ligand) complex which is accompanied by fluorescence enhancement of the main emission band centered at 355 nm of the medicinal probe. The fluorescence "turn-on" effect is a clear evidence for the chelation process between ferutinin medicinal probe and Ca(II) ions and this could be simply detected. The new sensor was proposed depending on significant fluorescence mechanism, (MLCT, metal-ligand charge transfer). However, the interaction of the medicinal optical sensor with Ca(II) in presence of other cations was examined without any significant interference. Also, the new developed optical sensor consecutively exhibits low limit of detection (LOD) 1.5 nM for Ca(II) which is detected in very significant physiological pH range (pH = 7.4). Also, the probe provides high binding affinity towards Ca(II) with large binding constant Kb 5.97 × 104 M-1. As a result, this optical sensor may apply for detection Ca(II) in cell or biological samples.
Collapse
Affiliation(s)
- Sayed M Saleh
- Chemistry Department, Science College, Qassim University, Buraidah, Saudi Arabia; Chemistry Branch, Department of Science and Mathematics, Faculty of Petroleum and Mining Engineering, Suez University, 43721 Suez, Egypt.
| | - Eman M Elkady
- Marine Chemistry lab, National Institute of Oceanography & Fisheries, Suez, Egypt
| | - Reham Ali
- Chemistry Department, Science College, Qassim University, Buraidah, Saudi Arabia; Chemistry Department, Science College, Suez University, 43518 Suez, Egypt
| | - Fahad Alminderej
- Chemistry Department, Science College, Qassim University, Buraidah, Saudi Arabia
| | - Tarik A Mohamed
- Chemistry of Medicinal Plants Department, National Research Centre, 12622, 33 El Bohouth St., Dokki, Giza, Egypt
| |
Collapse
|
24
|
A novel water-soluble highly selective “switch-on” ionic liquid-based fluorescent chemi-sensor for Ca(II). J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.06.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
25
|
Elshaarawy RF, Mokbel WA, El-Sawi EA. Novel ammonium ionic liquids as scavengers for aromatic and heterocyclic amines: Conversion into new pharmacological agents. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.09.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
26
|
Ali R, Saleh SM, Elshaarawy RFM. Turn-on pH nano-fluorosensor based on imidazolium salicylaldehyde ionic liquid-labeled silica nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra18097c] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
A turn-on pH nano-fluorosensor based on a new probe labeled SiNPs was designed. The new probe is based on ESIPT process for Sal bearing 2-MeIm ionic liquid terminal. The pH sensing performance of the nanosensor has been investigated.
Collapse
Affiliation(s)
- Reham Ali
- Chemistry Department
- Faculty of Science
- Suez University
- 43518 Suez
- Egypt
| | - Sayed M. Saleh
- Chemistry Branch
- Department of Science and Mathematics
- Faculty of Petroleum and Mining Engineering
- Suez University
- 43721 Suez
| | | |
Collapse
|