1
|
Butsch K, Haseloer A, Schmitz S, Ott I, Schur J, Klein A. Fe III, Cu II and Zn II Complexes of the Rigid 9-Oxido-phenalenone Ligand-Spectroscopy, Electrochemistry, and Cytotoxic Properties. Int J Mol Sci 2021; 22:3976. [PMID: 33921452 PMCID: PMC8070161 DOI: 10.3390/ijms22083976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/07/2021] [Accepted: 04/07/2021] [Indexed: 01/10/2023] Open
Abstract
The three complexes [Fe(opo)3], [Cu(opo)2], and [Zn(opo)2] containing the non-innocent anionic ligand opo- (opo- = 9-oxido-phenalenone, Hopo = 9-hydroxyphenalonone) were synthesised from the corresponding acetylacetonates. [Zn(opo)2] was characterised using 1H nuclear magnetic resonance (NMR) spectroscopy, the paramagnetic [Fe(opo)3] and [Cu(opo)2] by electron paramagnetic resonance (EPR) spectroscopy. While the EPR spectra of [Cu(opo)2] and [Cu(acac)2] in dimethylformamide (DMF) solution are very similar, a rather narrow spectrum was observed for [Fe(opo)3] in tetrahydrofuran (THF) solution in contrast to the very broad spectrum of [Fe(acac)3] in THF (Hacac = acetylacetone, 2,4-pentanedione; acac- = acetylacetonate). The narrow, completely isotropic signal of [Fe(opo)3] disagrees with a metal-centred S = 5/2 spin system that is observed in the solid state. We assume spin-delocalisation to the opo ligand in the sense of an opo- to FeIII electron transfer. All compounds show several electrochemical opo-centred reduction waves in the range of -1 to -3 V vs. the ferrocene/ferrocenium couple. However, for CuII and FeIII the very first one-electron reductions are metal-centred. Electronic absorption in the UV to vis range are due to π-π* transitions in the opo core, giving Hopo and [Zn(opo)2] a yellow to orange colour. The structured bands ranging from 400 to 500 for all compounds are assigned to the lowest energy π-π* transitions. They show markedly higher intensities and slight shifts for the CuII (brown) and FeIII (red) complexes and we assume admixing metal contributions (MLCT for CuII, LMCT for FeIII). For both complexes long-wavelength absorptions assignable to d-d transitions were detected. Detailed spectroelectrochemical experiments confirm both the electrochemical and the optical assignments. Hopo and the complexes [Cu(opo)2], [Zn(opo)2], and [Fe(opo)3] show antiproliferative activities against HT-29 (colon cancer) and MCF-7 (breast cancer) cell lines in the range of a few µM, comparable to cisplatin under the same conditions.
Collapse
Affiliation(s)
- Katharina Butsch
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln, Greinstraße 6, D-50939 Köln, Germany; (K.B.); (A.H.); (S.S.)
| | - Alexander Haseloer
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln, Greinstraße 6, D-50939 Köln, Germany; (K.B.); (A.H.); (S.S.)
| | - Simon Schmitz
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln, Greinstraße 6, D-50939 Köln, Germany; (K.B.); (A.H.); (S.S.)
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstrasse 55, D-38106 Braunschweig, Germany; (I.O.); (J.S.)
| | - Julia Schur
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstrasse 55, D-38106 Braunschweig, Germany; (I.O.); (J.S.)
| | - Axel Klein
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln, Greinstraße 6, D-50939 Köln, Germany; (K.B.); (A.H.); (S.S.)
| |
Collapse
|
2
|
Villamil-Ramos R, Gómez-Tagle P, Aguilar-Cordero JC, Yatsimirsky AK. Spectrophotometric, fluorimetric and electrochemical selective pyrophosphate/ATP sensing based on the dimethyltin(IV)-tiron system. Anal Chim Acta 2019; 1057:51-59. [PMID: 30832918 DOI: 10.1016/j.aca.2019.01.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 12/22/2018] [Accepted: 01/08/2019] [Indexed: 12/25/2022]
Abstract
Sensing of pyrophosphate anion (PPi) in the presence of nucleotide triphosphates allows the real time monitoring of the polymerase chain reaction. To get a deeper understanding of the factors involved in PPi/nucleotide triphosphate discrimination, a detailed study on the performance of a dimethyltin (IV)-catecholate complex capable of both separate fluorimetric or electrochemical detection of PPi in the presence of adenosine triphosphate (ATP) has been undertaken. Dimethyltin (IV) tightly binds PPi or ATP, and forms a stable 1:1 complex with tiron (4,5-dihydroxy-1,3-benzenedisulfonic acid) in water. The complexation equilibria with all components are characterized quantitatively by potentiometric and spectroscopic titrations. Pyrophosphate anion can be detected owing to its ability to release free tiron from the complex by measuring either a fluorimetric or an electrochemical signal. On the contrary, ATP does not displace tiron but causes an interference with PPi in the fluorimetric detection method due to the formation of a ternary Me2Sn(IV)-tiron-ATP complex with optical properties intermediate between those of free and bound tiron. In the electrochemical (square wave voltammetry) method, the ternary ATP complex shows a separate peak which does not coincide with the peaks of neither free nor bound tiron, thus making possible the simultaneous detection of ATP in addition to PPi.
Collapse
Affiliation(s)
- Raúl Villamil-Ramos
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma Del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, 62209, Cuernavaca, Morelos, Mexico
| | - Paola Gómez-Tagle
- Facultad de Química, Universidad Nacional Autónoma de México, 04510, México, D.F, Mexico
| | | | - Anatoly K Yatsimirsky
- Facultad de Química, Universidad Nacional Autónoma de México, 04510, México, D.F, Mexico.
| |
Collapse
|
3
|
Karar M, Shit P, Halder B, Mallick A, Majumdar T. Multifunctional Logic Applications of a Single Molecule: A Molecular Photo‐Switch Performing as Simple and Complex Gates, Memory Element, and a Molecular Keypad Lock. ChemistrySelect 2018. [DOI: 10.1002/slct.201702858] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Monaj Karar
- Department of ChemistryUniversity of Kalyani, Nadia West Bengal−741235 India
| | - Pradip Shit
- Department of ChemistryUniversity of Kalyani, Nadia West Bengal−741235 India
| | - Basudeb Halder
- Department of ChemistryVivekananda Mahavidyalaya, Bardwan West Bengal – 713103 India
| | - Arabinda Mallick
- Department of ChemistryKashipur Michael Madhusudan Mahavidyalaya, Purulia West Bengal−723132 India
| | - Tapas Majumdar
- Department of ChemistryUniversity of Kalyani, Nadia West Bengal−741235 India
| |
Collapse
|
4
|
Kumar V, Kumar P, Gupta R. Fluorescent detection of multiple ions by two related chemosensors: structural elucidations and logic gate applications. RSC Adv 2017. [DOI: 10.1039/c7ra01453h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two related chemosensors L1 and L2 display selective detection of multiple ions (Cu2+, Al3+, Cd2+ and S2−) as a result of minor variation of functional groups at a remote arene ring.
Collapse
Affiliation(s)
- Vijay Kumar
- Department of Chemistry
- University of Delhi
- Delhi 110 007
- India
| | - Pramod Kumar
- Department of Chemistry
- University of Delhi
- Delhi 110 007
- India
| | - Rajeev Gupta
- Department of Chemistry
- University of Delhi
- Delhi 110 007
- India
| |
Collapse
|
5
|
Devi M, Dhir A, Pradeep CP. Modulating sensitivity and detection mechanism with spacer length: a new series of fluorescent turn on chemodosimeters for Pb2+ based on rhodamine–quinoline conjugates. RSC Adv 2016. [DOI: 10.1039/c6ra22764c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
A series of highly selective and sensitive fluorescent turn on chemodosimeters and a chemosensor have been developed for Pb2+ ions based on rhodamine–quinoline conjugates.
Collapse
Affiliation(s)
- Manisha Devi
- School of Basic Sciences
- Indian Institute of Technology Mandi
- Kamand-175 005
- India
| | - Abhimanew Dhir
- School of Basic Sciences
- Indian Institute of Technology Mandi
- Kamand-175 005
- India
| | | |
Collapse
|
6
|
Devi M, Dhir A, Pradeep CP. A sandwich-type zinc complex from a rhodamine dye based ligand: a potential fluorescent chemosensor for acetate in human blood plasma and a molecular logic gate with INHIBIT function. NEW J CHEM 2016. [DOI: 10.1039/c5nj02175h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Zn-R1 exhibits reversible binding with acetate yielding different optical and fluorescence outputs on alternate addition of zinc and acetate ions.
Collapse
Affiliation(s)
- Manisha Devi
- School of Basic Sciences
- Indian Institute of Technology Mandi
- India
| | - Abhimanew Dhir
- School of Basic Sciences
- Indian Institute of Technology Mandi
- India
| | | |
Collapse
|
7
|
Rompoti A, Dalal N, Athanasopoulos D, Rutan S, Helburn R. Analysis of organophosphate-Zn metalloporphyrin interactions via UV-vis spectroscopy and molecular modeling. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 135:447-456. [PMID: 25108112 DOI: 10.1016/j.saa.2014.06.126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2013] [Revised: 06/19/2014] [Accepted: 06/22/2014] [Indexed: 06/03/2023]
Abstract
UV-vis absorption spectra of zinc tetraphenylporphine (ZnTPP) on interaction with six organophosphorus (OP) compounds in cyclohexane were compared using ab initio methods and the molecular and solvation ligand descriptors π(*), Vx, and σ. OPs with polarizable hydrocarbon substituents in the homologous series tri-ethyl, -pentyl, -octyl, and -phenyl phosphates and the toxicologically relevant methyl paraoxon (1a-e) each gave a red shift in the Soret band (λsor) of ZnTPP in the range of 8-10 nm. Sensitivity as ΔAsor-b/Δug OP for the spectral band of the ligand bound ZnTPP (λsor-b) decreased with increasing extent of alkyl and aromatic substitution. Calculated and combined energies for OP and ZnTPP examined as a function of distance (Å) between ligand and porphyrin center suggest increased steric crowding with increasing Vx, and aromatic content of the OP. Spectrally fitted K1:1 and ΔAsor-b/ug OP each vary exponentially with Vx/σ. Lack of a red shift in λsor-b where ZnTPP was titrated with the toxic diethyl chlorophosphate (1g) is consistent with a model in which the magnitude of ΔEsor is proportional to the donor capacity of the phosphoryl-O ligand.
Collapse
Affiliation(s)
- A Rompoti
- Dept. of Chemistry and Physical Sciences, Pace University, New York, NY, United States
| | - N Dalal
- Dept. of Chemistry and Physical Sciences, Pace University, New York, NY, United States
| | - D Athanasopoulos
- Dept. of Chemistry and Physical Sciences, Pace University, New York, NY, United States
| | - S Rutan
- Dept. of Chemistry, Virginia Commonwealth University, Richmond, VA, United States
| | - R Helburn
- Dept. of Chemistry and Physics, St Francis College, Brooklyn Heights, NY, United States.
| |
Collapse
|
8
|
Lin Y, Hu L, Li L, Wang K, Ji Y, Zou H. Electrochemical determination of pyrophosphate at nanomolar levels using a gold electrode covered with a cysteine nanofilm and based on competitive coordination of Cu(II) ion to cysteine and pyrophosphate. Mikrochim Acta 2015. [DOI: 10.1007/s00604-014-1414-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
9
|
Rezaeian K, Khanmohammadi H. Two and three input molecular logic operations mediated by a novel azo-azomethine based chromogenic probe through intramolecular charge transfer processes. NEW J CHEM 2015. [DOI: 10.1039/c4nj01723d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel azo-azomethine based chromogenic receptor has been successfully designed and synthesized for the construction of multifunctional molecular logic circuits.
Collapse
Affiliation(s)
- Khatereh Rezaeian
- Department of Chemistry
- Faculty of Science
- Arak University
- Arak 38156 8 8349
- Iran
| | - Hamid Khanmohammadi
- Department of Chemistry
- Faculty of Science
- Arak University
- Arak 38156 8 8349
- Iran
| |
Collapse
|
10
|
Goswami S, Das AK, Pakhira B, Basu Roy S, Maity AK, Saha P, Sarkar S. Pyrophosphate selective fluorescent chemosensors: cascade recognition of nuclear stain mimicking DAPI. Dalton Trans 2014; 43:12689-97. [DOI: 10.1039/c4dt01262c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
11
|
Datta BK, Mukherjee S, Kar C, Ramesh A, Das G. Zn2+ and Pyrophosphate Sensing: Selective Detection in Physiological Conditions and Application in DNA-Based Estimation of Bacterial Cell Numbers. Anal Chem 2013; 85:8369-75. [DOI: 10.1021/ac401871t] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Barun K. Datta
- Department
of Chemistry, Indian Institute of Technology, Guwahati, Guwahati,
781039, India
| | - Sandipan Mukherjee
- Department
of Biotechnology, Indian Institute of Technology, Guwahati, Guwahati,
781039, India
| | - Chirantan Kar
- Department
of Chemistry, Indian Institute of Technology, Guwahati, Guwahati,
781039, India
| | - Aiyagari Ramesh
- Department
of Biotechnology, Indian Institute of Technology, Guwahati, Guwahati,
781039, India
| | - Gopal Das
- Department
of Chemistry, Indian Institute of Technology, Guwahati, Guwahati,
781039, India
| |
Collapse
|
12
|
Goswami S, Manna A, Paul S, Aich K, Das AK, Chakraborty S. Dual channel selective fluorescence detection of Al(III) and PPi in aqueous media with an 'off-on-off' switch which mimics molecular logic gates (INHIBIT and EXOR gates). Dalton Trans 2013; 42:8078-85. [PMID: 23575906 DOI: 10.1039/c3dt50621e] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In this study, we have synthesized a simple Schiff base type isophthaloyl salicylaldehyde hydrazone (ISH) moiety which selectively detects Al(III) and PPi with a fluorescence enhancement at two different wavelengths in aqueous solution. The sensing phenomenon is also reversible and thus the sensor beautifully mimics logic gates (INHIBIT and EXOR gates).
Collapse
Affiliation(s)
- Shyamaprosad Goswami
- Department of Chemistry, Bengal Engineering and Science University, Shibpur, Howrah, India.
| | | | | | | | | | | |
Collapse
|
13
|
Karak D, Das S, Lohar S, Banerjee A, Sahana A, Hauli I, Mukhopadhyay SK, Safin DA, Babashkina MG, Bolte M, Garcia Y, Das D. A naphthalene–thiophene hybrid molecule as a fluorescent AND logic gate with Zn2+ and OAc− ions as inputs: cell imaging and computational studies. Dalton Trans 2013; 42:6708-15. [DOI: 10.1039/c3dt50450f] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
14
|
Zhang J, Chen C, Xu X, Wang X, Yang X. Use of fluorescent gold nanoclusters for the construction of a NAND logic gate for nitrite. Chem Commun (Camb) 2013; 49:2691-3. [DOI: 10.1039/c3cc38298b] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
15
|
Liang LJ, Huang CZ. Spectral study on the unique enhanced fluorescence of guanosine triphosphate by zinc ions. Talanta 2012; 104:198-203. [PMID: 23597910 DOI: 10.1016/j.talanta.2012.11.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Revised: 11/07/2012] [Accepted: 11/08/2012] [Indexed: 11/26/2022]
Abstract
Binding effect of guanosine triphosphate (GTP) with metal ions is involved in many biologically important processes, and so its investigation has been one interesting research focus for many chemical and biochemical research groups. In this contribution, we presented the unique fluorescence recovery and enhancement of GTP induced by Zn(II) based on the spectrofluorometric method. When excited at 280 nm, GTP is hardly fluorescent at the alkaline condition. However, the presence of Zn(II) caused an obvious fluorescence emission of GTP at 346 nm, and the binding molar ratio between GTP and Zn(II) had been proved to be 1. The investigations of binding property of various nucleotides with metal ions demonstrated that this fluorescence recovery and enhancement of GTP with Zn(II) was highly specific, which could successfully discriminate GTP from other structurally similar nucleotides including GDP and GMP. Furthermore, similar fluorescence response of the bacterial alarmone ppGpp to Zn(II) had also been identified.
Collapse
Affiliation(s)
- Li Jiao Liang
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | | |
Collapse
|
16
|
Zhao XJ, He L, Huang CZ. Highly selective visual distinction of pyrophosphate from other phosphate anions with 4-[(5-chloro-2-pyridyl)azo]-1,3-diaminobenzene in the presence of copper(II) ions. Talanta 2012; 101:59-63. [PMID: 23158291 DOI: 10.1016/j.talanta.2012.08.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Revised: 08/20/2012] [Accepted: 08/27/2012] [Indexed: 11/16/2022]
Abstract
Pyrophosphate (PPi), as a biologically related phosphate anion, plays very important roles in organisms. Here, a highly selective visual method for distinction of PPi was made with commercial available 4-[(5-chloro-2-pyridyl)azo]-1,3-diaminobenzene (5-Cl-PADAB) in the presence of copper(II). The yellow solution of 5-Cl-PADAB exhibits strong absorption at 450.5 nm, and addition of Cu(II) results in a red solution with a new absorption band at 506.0 nm. Upon titration with PPi, the absorption band at 506.0 nm decreases with blueshift, while another new absorption band in the region from 562.0 nm to 750.0 nm appears which gradually splits into two peaks, and the color accordingly changes from red to cyan. Further addition of PPi, the new absorption peaks gradually disappear, and the mixture shows the absorption of 5-Cl-PADAB and recovers to yellow from cyan. This process is highly selective for PPi since other phosphate anions such as nucleotides cannot induce such spectral and color changes. With this method, the detection of PPi concentration in human urine was made with satisfactory results.
Collapse
Affiliation(s)
- Xi Juan Zhao
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | | | | |
Collapse
|
17
|
Misra A, Srivastava P, Shahid M. Fluorescent probe mimicking multiple logic gates and a molecular keypad lock upon interaction with Hg2+ and bovine serum albumin. Analyst 2012; 137:3470-8. [PMID: 22717541 DOI: 10.1039/c2an35561b] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The output fluorescence exhibited by an intramolecular charge transfer fluorescent probe 1 providing different chemical inputs mimicked multiple logic gates. A molecular keypad lock security device authorizing password entries (logic memory) and capable of solving crossword puzzles has been constructed by computing the output emission of 1 upon chemical inputs of BSA and Hg(2+). Based on logic operations the devised fluorescent keypad lock could be unlocked upon entering a correct sequence of password, 'BHU'.
Collapse
Affiliation(s)
- Arvind Misra
- Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221005, India. arvindmisra2003@ yahoo.com
| | | | | |
Collapse
|
18
|
Villamil-Ramos R, Barba V, Yatsimirsky AK. Selective fluorometric detection of pyrophosphate by 3-hydroxyflavone-diphenyltin(iv) complex in aqueous micellar medium. Analyst 2012; 137:5229-36. [DOI: 10.1039/c2an35999e] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
19
|
Liang LJ, Zhao XJ, Huang CZ. Zn(ii) complex of terpyridine for the highly selective fluorescent recognition of pyrophosphate. Analyst 2012; 137:953-8. [DOI: 10.1039/c2an15845k] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
20
|
Zhao XJ, Huang CZ. Selective fluorometric detection of pyrophosphate and stringent alarmone with copper(II)–2,6-bis(2-benzimidazolyl)pyridine complex. Biosens Bioelectron 2011; 30:282-6. [DOI: 10.1016/j.bios.2011.09.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 09/08/2011] [Accepted: 09/22/2011] [Indexed: 11/15/2022]
|
21
|
A polymer based fluorescent sensor for Zn2+ detection and its application for constructing logic gates. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.10.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
22
|
Villamil-Ramos R, Yatsimirsky AK. Selective fluorometric detection of pyrophosphate by interaction with alizarin red S-dimethyltin(IV) complex. Chem Commun (Camb) 2011; 47:2694-6. [PMID: 21229184 DOI: 10.1039/c0cc05346e] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly selective detection of pyrophosphate in the presence of inorganic phosphate, halides, acetate, ATP, other nucleotides and phosphate esters in neutral aqueous solutions is achieved by using fluorescent dimethyltin(iv)-alizarin red S complex.
Collapse
Affiliation(s)
- Raul Villamil-Ramos
- Universidad Nacional Autónoma de México, Facultad de Química, Mexico City, Mexico
| | | |
Collapse
|
23
|
Wang H, Wu H, Xue L, Shi Y, Li X. A naphthalimide fluorophore with efficient intramolecular PET and ICT Processes: Application in molecular logic. Org Biomol Chem 2011; 9:5436-44. [DOI: 10.1039/c1ob05481c] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|