1
|
Synthesis and characterization of a pyrene-based Schiff base and its oligomer: Investigation of fluorescent Cr3+ probe. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2021.105097] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
2
|
Kumar G, Singh I, Goel R, Paul K, Luxami V. Dual-channel ratiometric recognition of Al 3+ and F - ions through an ESIPT-ESICT signalling mechanism. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 247:119112. [PMID: 33189981 DOI: 10.1016/j.saa.2020.119112] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 10/11/2020] [Accepted: 10/17/2020] [Indexed: 06/11/2023]
Abstract
An optical probe 1 has been synthesized comprising naphthalimide unit conjugated with Schiff base, exhibiting excited state intramolecular proton transfer and intramolecular charge transfer as a potential sensor for Al3+ and F- ions using standard spectroscopic techniques. The probe 1 exhibited local and charge-transfer excitation at 340 nm and 460 nm, respectively. On excitation at 460 nm, probe 1 displayed two emission bands at 510 nm and 610 nm, accompanied by Stokes' shift of 50 nm and 150 nm, respectively. The solvatochromic effect and theoretical calculation depicted that the representative emissions resulted from the ESICT/ESIPT phenomenon. Upon addition of Al3+ ions, the charge transfer excitation at 460 nm was enhanced ratiometrically to local excitation at 340 nm and showed a color change from orange to yellow. Similarily, probe 1.Al3+ displayed emission enhancement at 540 nm in H2O/CH3CN (1:9; v/v) and showed a color change from yellow to blue-green emission. Following the detection of Al3+ ions, hydrolysis of probe 1 to its reacting precursors was observed. The detection of Al3+ ions was also demonstrated in surfactant-containing water. The limit of detection (LOD) of probe 1 (H2O/CH3CN (1:9; v/v)) towards Al3+ ions was measured to be 3.2 × 10-8 M. The probe 1 displayed a ratiometric absorption response towards F- ions with a new peak at 570 nm and showed a color change from orange to purple. The probe 1.F- displayed a decrease in emission at 635 nm. The LOD of probe 1 (CH3CN) towards F- ions was measured to be 7.5 × 10-7 M.
Collapse
Affiliation(s)
- Gulshan Kumar
- School of Chemistry and Biochemistry, Thapar Institute of Engineering & Technology, Patiala 147004, India
| | - Iqubal Singh
- School of Chemistry and Biochemistry, Thapar Institute of Engineering & Technology, Patiala 147004, India
| | - Richa Goel
- School of Chemistry and Biochemistry, Thapar Institute of Engineering & Technology, Patiala 147004, India
| | - Kamaldeep Paul
- School of Chemistry and Biochemistry, Thapar Institute of Engineering & Technology, Patiala 147004, India
| | - Vijay Luxami
- School of Chemistry and Biochemistry, Thapar Institute of Engineering & Technology, Patiala 147004, India.
| |
Collapse
|
3
|
Bag SS, De S. Pyrenylthioureayl Alanine as a Switch‐On Fluorescent Sensor for Hg(II) Ions. ChemistrySelect 2018. [DOI: 10.1002/slct.201802249] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Subhendu Sekhar Bag
- Department of Chemistry and Centre for the EnvironmentIndian Institute of Technology Guwahati North Guwhati-781039, Assam India
| | - Suranjan De
- Department of Chemistry and Centre for the EnvironmentIndian Institute of Technology Guwahati North Guwhati-781039, Assam India
| |
Collapse
|
4
|
Gujar V, Sangale V, Ottoor D. A Selective Turn off Fluorescence Sensor Based on Propranolol-SDS Assemblies for Fe 3+ Detection. J Fluoresc 2018; 29:91-100. [PMID: 30361859 DOI: 10.1007/s10895-018-2313-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 10/15/2018] [Indexed: 11/24/2022]
Abstract
A fluorophore modulation with sodium dodecyl sulphate (SDS) assemblies for the selective and sensitive sensing of Fe3+ ions in aqueous solution is illustrated in this work. Emission spectral characteristics of fluorescent molecule, propranolol (PPH) was intact in presence of metal ions. While on modulation with SDS assemblies, PPH was transformed into a tuneable sensor for Fe3+ ions. This sensor ensemble was not only highly sensitive towards Fe3+ ions in aqueous solution with detection limits lower than 3 μM but also possess high discriminating efficiency in presence of other metal ions like Cu2+, Pb2+, Zn2+, Ni2+, Fe2+, Cd2+, Co2+, Al3+, Mg2+, Hg2+ and Mn2+. The electrostatic interaction of the anionic group of surfactants with the metal cations significantly increases the communication between metal ions and PPH moiety which results in the quenching of PPH fluorescence. We have employed fluorescence steady state and lifetime studies to understand the metal sensing behaviour of the PPH-SDS sensor system. Principal component analysis (PCA) was used to evaluate the discriminative ability of the developed sensor system towards Fe3+ ions.
Collapse
Affiliation(s)
- Varsha Gujar
- Department of Chemistry, Savitribai Phule Pune University, Ganeshkhind Road, Pune, 411007, India
| | - Vijay Sangale
- Department of Chemistry, Savitribai Phule Pune University, Ganeshkhind Road, Pune, 411007, India
| | - Divya Ottoor
- Department of Chemistry, Savitribai Phule Pune University, Ganeshkhind Road, Pune, 411007, India.
| |
Collapse
|
5
|
Schwarze T, Riemer J, Holdt HJ. A Ratiometric Fluorescent Probe for K + in Water Based on a Phenylaza-18-Crown-6 Lariat Ether. Chemistry 2018; 24:10116-10121. [PMID: 29863303 DOI: 10.1002/chem.201802306] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Indexed: 01/24/2023]
Abstract
This work presents two molecular fluorescent probes 1 and 2 for the selective determination of physiologically relevant K+ levels in water based on a highly K+ /Na+ selective building block, the o-(2-methoxyethoxy)phenylaza-18-crown-6 lariat ether unit. Fluorescent probe 1 showed a high K+ -induced fluorescence enhancement (FE) by a factor of 7.7 of the anthracenic emission and a dissociation constant (Kd ) value of 38 mm in water. Further, for 2+K+ , we observed a dual emission behavior at 405 and 505 nm. K+ increases the fluorescence intensity of 2 at 405 nm by a factor of approximately 4.6 and K+ decreases the fluorescence intensity at 505 nm by a factor of about 4.8. Fluorescent probe 2+K+ exhibited a Kd value of approximately 8 mm in Na+ -free solutions and in combined K+ /Na+ solution a similar Kd value of about 9 mm was found, reflecting the high K+ /Na+ selectivity of 2 in water. Therefore, 2 is a promising fluorescent tool to measure ratiometrically and selectively physiologically relevant K+ levels.
Collapse
Affiliation(s)
- Thomas Schwarze
- Institut für Chemie, Anorganische Chemie, Universität Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Golm, Germany
| | - Janine Riemer
- Institut für Chemie, Anorganische Chemie, Universität Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Golm, Germany
| | - Hans-Jürgen Holdt
- Institut für Chemie, Anorganische Chemie, Universität Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Golm, Germany
| |
Collapse
|
6
|
Padghan SD, Puyad AL, Bhosale RS, Bhosale SV, Bhosale SV. A pyrene based fluorescent turn-on chemosensor: aggregation-induced emission enhancement and application towards Fe 3+ and Fe 2+ recognition. Photochem Photobiol Sci 2018; 16:1591-1595. [PMID: 29039858 DOI: 10.1039/c7pp00329c] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A pyrene-based probe bearing benzothiazole ionophore (Py-BTZ) was synthesised as a "turn-on" fluorescent chemosensor for the detection of Fe3+ and Fe2+ ions in CH3CN : H2O (1 : 1, v/v) solvent mixes. The chemosensor showed optical as well as colorimetric changes towards Fe3+ and Fe2+ ions along with a remarkable enhancement in fluorescence emission. The detection limit of Py-BTZ towards Fe3+ and Fe2+ ions was found to be 2.61 μM and 2.06 μM, respectively. The binding of Py-BTZ with Fe3+ and Fe2+ was determined by using FT-IR experiments. Interestingly, Py-BTZ shows aggregation induced emission enhancement (AIEE) properties in polar solvent mixes such as CH3CN : H2O (1 : 1, v/v).
Collapse
Affiliation(s)
- Sachin D Padghan
- Polymers and Functional Material Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India.
| | | | | | | | | |
Collapse
|
7
|
Upadhyay Y, Anand T, Babu LT, Paira P, Crisponi G, SK AK, Kumar R, Sahoo SK. Three-in-one type fluorescent sensor based on a pyrene pyridoxal cascade for the selective detection of Zn(ii), hydrogen phosphate and cysteine. Dalton Trans 2018; 47:742-749. [DOI: 10.1039/c7dt04234e] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel fluorescent receptor L was developed for the selective detection of important bioactive analytes.
Collapse
Affiliation(s)
- Yachana Upadhyay
- Department of Applied Chemistry
- SV National Institute of Technology (SVNIT)
- Surat-395007
- India
| | - Thangaraj Anand
- Department of Applied Chemistry
- SV National Institute of Technology (SVNIT)
- Surat-395007
- India
| | - Lavanya Thilak Babu
- Pharmaceutical Chemistry Division
- School of Advanced Sciences
- VIT University
- Vellore-632014
- India
| | - Priyankar Paira
- Pharmaceutical Chemistry Division
- School of Advanced Sciences
- VIT University
- Vellore-632014
- India
| | - Guido Crisponi
- Dipartimento di Scienze Chimiche e Geologiche
- Università di Cagliari
- 09042 Monserrato
- Italy
| | - Ashok Kumar SK
- Materials Chemistry Division
- School of Advanced Sciences
- VIT University
- Vellore-632014
- India
| | - Rajender Kumar
- Department of Applied Chemistry
- SV National Institute of Technology (SVNIT)
- Surat-395007
- India
| | - Suban K. Sahoo
- Department of Applied Chemistry
- SV National Institute of Technology (SVNIT)
- Surat-395007
- India
| |
Collapse
|
8
|
Highly selective fluorescent probe based on new coordinated cationic polyvinylpyrrolidone for hydrogen sulfide sensing in aqueous solution. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.09.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
9
|
Gujar VB, Ottoor D. Medium dependent dual turn on/turn off fluorescence sensing for Cu 2+ ions using AMI/SDS assemblies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:666-674. [PMID: 27776319 DOI: 10.1016/j.saa.2016.10.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 09/30/2016] [Accepted: 10/16/2016] [Indexed: 06/06/2023]
Abstract
Behavior of Amiloride (AMI) as a metal ion sensor in anionic surfactant assemblies of varying concentrations at different pH is depicted in this work. From a non-sensor fluorophore, AMI has been transformed in to a tunable fluorosensor for Cu2+ ions in various SDS concentrations. At premicellar concentration of SDS, ion-pair complex is expected to be formed between AMI and SDS due to electrostatic interactions between them. However at CMC concentrations of SDS, fluorescence intensity of AMI is greatly enhanced with red shift in emission, due to the incorporation of AMI molecule in the hydrophobic micellar interface. The behavior of metal sensing by AMI-SDS assemblies gives rise to several interesting observations. Micellation of SDS has been greatly enhanced by increasing copper ion concentrations, as these counter ions screens the charge on monomers of SDS which lead to the aggregation at premicellar concentrations only. Concentrations and pH dependent discrete trends of interactions between SDS-AMI and SDS-Cu2+ ions, have given tunable fluorescence responses (fluorescence turn on/turn off) of AMI for added Cu2+ ions. The electrostatic interaction between the metal cations and the anionic surfactants is the driving force for bringing the metal ions near to the vicinity of micelle where AMI resides. Thus, a comprehensive understanding of the mechanism related to the 'turn on-turn off' fluorescence response of AMI with respect to pH and SDS concentration for effective Cu2+ ion sensing is illustrated in this work.
Collapse
Affiliation(s)
- Varsha B Gujar
- Department of Chemistry, Savitribai Phule Pune University, Ganeshkhind Road, Pune 411 007, India
| | - Divya Ottoor
- Department of Chemistry, Savitribai Phule Pune University, Ganeshkhind Road, Pune 411 007, India.
| |
Collapse
|
10
|
Surfactant-modulated discriminative sensing of HNO and H2S with a Cu2+-complex-based fluorescent probe. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
11
|
Taniguchi Y, Tomizaki A, Matsueda N, Okamura H, Sasaki S. Enhancement of TFO Triplex Formation by Conjugation with Pyrene via Click Chemistry. Chem Pharm Bull (Tokyo) 2016; 63:920-6. [PMID: 26521856 DOI: 10.1248/cpb.c15-00570] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This paper reports the preparation of 14-mer triplex-forming oligonucleotides (TFOs) containing a 2-O-methyl-1-β-phenyl-α-propargyl-ribose unit, which was conjugated with azide-modified molecules via a click reaction. Modification of these TFOs with pyrene assisted triplex formation, improving the stability of the triplex DNA and the anti-proliferative effects against A549 cells.
Collapse
|
12
|
Saleem M, Lee KH. Optical sensor: a promising strategy for environmental and biomedical monitoring of ionic species. RSC Adv 2015. [DOI: 10.1039/c5ra11388a] [Citation(s) in RCA: 157] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In this review, we cover the recent developments in fluorogenic and chromogenic sensors for Cu2+, Fe2+/Fe3+, Zn2+and Hg2+.
Collapse
Affiliation(s)
- Muhammad Saleem
- Department of Chemistry
- Kongju National University
- Gongju
- Republic of Korea
| | - Ki Hwan Lee
- Department of Chemistry
- Kongju National University
- Gongju
- Republic of Korea
| |
Collapse
|
13
|
Wang S, Ding L, Fan J, Wang Z, Fang Y. Bispyrene/surfactant-assembly-based fluorescent sensor array for discriminating lanthanide ions in aqueous solution. ACS APPLIED MATERIALS & INTERFACES 2014; 6:16156-16165. [PMID: 25188720 DOI: 10.1021/am504208a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Lanthanides are valuable nonrenewable resources and widely used in a variety of industries. Detection and identification of lanthanide ions are in high demand but challenging because of the similarity among lanthanide ions. In the present work, a fluorescent sensor array of three cationic bispyrene derivatives mixed with anionic surfactant assemblies was developed. The sensor array exhibits cross-reactive responses to lanthanide ions when tested in aqueous solution. The combination of fluorescence variations at both monomer and excimer emission of each of the bispyrene sensor elements provides a six-signal recognition pattern for lanthanide ions. Principle component analysis illustrates that the sensor array could at least identify 6 of the 14 similar lanthanide ions including La(3+), Pr(3+), Nd(3+), Eu(3+), Ho(3+), and Er(3+). UV-vis absorption measurements rule out the possibility of binding lanthanides with fluorophores. Fluorescence titration experiments in both cationic and neutral surfactant aqueous solutions reveal that the three fluorophores show slight fluorescence responses to the lanthanide ions, indicating that electrostatic attraction between lanthanide ions and anionic surfactant plays an important role in the sensing behavior of the sensor array. Control experiments with divalent metal ions find no cross-reactive responses, suggesting that the stronger electrostatic interaction with trivalent lanthanide ions is responsible for the multiple fluorescence responses.
Collapse
Affiliation(s)
- Shihuai Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University , Xi'an 710062, P. R. China
| | | | | | | | | |
Collapse
|
14
|
Synthesis and photophysical properties of 1, 4-disubstituted naphthyloxymethyl-N-alkyl naphthimido-1,2,3-triazole. J CHEM SCI 2014. [DOI: 10.1007/s12039-014-0677-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
15
|
Xia Y, Qi Z, Sun Y, Cao D, Ling H, Yang F, Ji X. Theoretical investigation of a “turn-on” fluorescent sensor induced by complexation of mercury(II) ion. J Mol Model 2014; 20:2243. [DOI: 10.1007/s00894-014-2243-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 04/08/2014] [Indexed: 10/25/2022]
|
16
|
Fang B, Liang Y, Chen F. Highly sensitive and selective determination of cupric ions by using N,N′-bis(salicylidene)-o-phenylenediamine as fluorescent chemosensor and related applications. Talanta 2014; 119:601-5. [DOI: 10.1016/j.talanta.2013.11.066] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 11/18/2013] [Accepted: 11/24/2013] [Indexed: 01/21/2023]
|
17
|
Patra A, Sen TK, Musie GT, Mandal SK, Bera M. A novel copper(II) coordination polymer with carboxylate and isoindol backbones of a bifunctional ligand. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.05.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
18
|
Yang L, Zhu W, Fang M, Zhang Q, Li C. A new carbazole-based Schiff-base as fluorescent chemosensor for selective detection of Fe3+ and Cu2+. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 109:186-92. [PMID: 23523761 DOI: 10.1016/j.saa.2013.02.043] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 01/30/2013] [Accepted: 02/20/2013] [Indexed: 05/15/2023]
Abstract
A new carbazole-based Schiff-base (1) as a multi-functional fluorescent chemosensor was designed, synthesized and characterized, which can selectively recognized Fe(3+) and Cu(2+) ions over a number of other metal ions. Compound 1 could detect Fe(3+) and Cu(2+) by UV-Vis method and fluorescence method. The stoichiometry ratio of 1-Fe(3+) and 1-Cu(2+) are 2:1 and 1:1, respectively, by the method of Job's plot. Moreover, the detection limits were calculated to be 4.23×10(-6) mol/L for Fe(3+) ion and 5.67×10(-6) mol/L for Cu(2+) ion. In the presence of Fe(3+)/Cu(2+) ions, the fluorescence enhancement was attributed to the inhibited C=N isomerization and the obstructed excited state intramolecular proton transfer (ESIPT) of compound 1. At the same time, the interactions of compounds 1 with other ions were also investigated and unobvious UV-Vis absorption and fluorescence spectral changes were observed. Thus a new kind of chemosensor for Fe(3+)/Cu(2+)with high sensitivity and selectivity was introduced.
Collapse
Affiliation(s)
- Lianlian Yang
- College of Chemistry and Chemical Engineering & AnHui Province Key Laboratory of Environment-friendly Polymer Materials, Anhui University, Hefei 230601, China
| | | | | | | | | |
Collapse
|
19
|
Bag SS, Kundu R, Jana S. Sensing of biomolecules and label-free discrimination of DNA containing a triple T–C/T–G mismatch pair with a fluorescence light-up probe, triazolylpyrene (TNDMBPy). Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.03.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
20
|
Sensing of Micellar Microenvironment with Dual Fluorescent Probe, Triazolylpyrene (TNDMBPy). J Fluoresc 2013; 23:929-38. [DOI: 10.1007/s10895-013-1218-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Accepted: 04/01/2013] [Indexed: 10/26/2022]
|
21
|
Shi DT, Zhang B, Yang YX, Guan CC, He XP, Li YC, Chen GR, Chen K. Bis-triazolyl indoleamines as unique “off–approach–on” chemosensors for copper and fluorine. Analyst 2013; 138:2808-11. [DOI: 10.1039/c3an00030c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|