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β-cyclodextrin functionalized magnetic nanoparticles for the removal of pharmaceutical residues in drinking water. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.02.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2
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A facile and label-free ratiometric optical sensor for selective detection of norepinephrine by combining second-order scattering and fluorescence signals. Anal Bioanal Chem 2019; 411:3081-3089. [PMID: 31076818 DOI: 10.1007/s00216-019-01762-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 02/24/2019] [Accepted: 03/06/2019] [Indexed: 01/07/2023]
Abstract
In this work, a facile and label-free ratiometric sensor is constructed for selective determination of norepinephrine (NE) by coupling second-order scattering (SOS) and fluorescence, two different and independent optical signals. Herein, polyethyleneimine (PEI) dilute solution medium shows an intensive SOS signal without any fluorescence response. Interestingly, NE can be selectively induced by PEI to emit bright fluorescence, and meanwhile causes an observable decrease in the SOS signal due to the interactions between NE and PEI. The simultaneous variation of the two independent signals can be used for ratiometric sensing of NE. Under the optimal conditions, the resultant ratiometric sensor displays high sensitivity and selectivity toward NE by simultaneously monitoring fluorescence and SOS signals with the same excitation wavelength. The proposed sensor exhibits a good linear relationship versus NE concentration in the range of 10.0 nM-45.0 μM with a detection limit of 2.0 nM (S/N = 3) and has been successfully applied to the determination of NE in real samples without the use of any extra reagent. The combination of fluorescence and SOS signals provides a new scheme for ratiometric sensor design, greatly simplifying experimental procedure and effectively enhancing detection accuracy. Moreover, the proposed analytical strategy further broadens the application of dilute solutions of polymers in research into optical sensor and green analytical chemistry. Graphical abstract.
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Hutterer R. Inclusion of fluorophores in cyclodextrins: a closer look at the fluorometric determination of association constants by linear and nonlinear fitting procedures. Methods Appl Fluoresc 2017; 6:013001. [PMID: 28925371 DOI: 10.1088/2050-6120/aa8d96] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The author discusses methods for the fluorometric determination of affinity constants by linear and nonlinear fitting methods. This is outlined in particular for the interaction between cyclodextrins and several anesthetic drugs including benzocaine. Special emphasis is given to the limitations of certain fits, and the impact of such studies on enzyme-substrate interactions are demonstrated. Both the experimental part and methods of analysis are well suited for students in an advanced lab.
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Affiliation(s)
- Rudi Hutterer
- University of Regensburg, Institute of Analytical Chemistry, Chemo- and Biosensors, D-93040 Regensburg, Germany
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4
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Mandyla SP, Tsogas GZ, Vlessidis AG, Giokas DL. Determination of gold nanoparticles in environmental water samples by second-order optical scattering using dithiotreitol-functionalized CdS quantum dots after cloud point extraction. JOURNAL OF HAZARDOUS MATERIALS 2017; 323:67-74. [PMID: 27021432 DOI: 10.1016/j.jhazmat.2016.03.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/13/2016] [Accepted: 03/15/2016] [Indexed: 06/05/2023]
Abstract
This work presents a new method for the sensitive and selective determination of gold nanoparticles in water samples. The method combines a sample preparation and enrichment step based on cloud point extraction with a new detection motif that relies on the optical incoherent light scattering of a nano-hybrid assembly that is formed by hydrogen bond interactions between gold nanoparticles and dithiotreitol-functionalized CdS quantum dots. The experimental parameters affecting the extraction and detection of gold nanoparticles were optimized and evaluated to the analysis of gold nanoparticles of variable size and surface coating. The selectivity of the method against gold ions and other nanoparticle species was also evaluated under different conditions reminiscent to those usually found in natural water samples. The developed method was applied to the analysis of gold nanoparticles in natural waters and wastewater with satisfactory results in terms of sensitivity (detection limit at the low pmolL-1 levels), recoveries (>80%) and reproducibility (<9%). Compared to other methods employing molecular spectrometry for metal nanoparticle analysis, the developed method offers improved sensitivity and it is easy-to-operate thus providing an additional tool for the monitoring and the assessment of nanoparticles toxicity and hazards in the environment.
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Affiliation(s)
| | - George Z Tsogas
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece
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Bouzitouna A, Khatmi D, Attoui Yahia O. A hybrid MP2/DFT scheme for N-Nitroso-N-(2-chloroethyl)-N′-sulfamoylprolinate/β-cyclodextrin supramolecular structure: AIM, NBO analysis. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2016.12.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Li Q, Tan X, Zheng X, Tang W, Yang J. A novel method for the determination of fast green in grape wine based on resonance Rayleigh scattering. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.05.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Interaction of adenine with palladium chloride, determination of adenine via resonance Rayleigh scattering method. Anal Chim Acta 2011; 707:114-20. [DOI: 10.1016/j.aca.2011.08.051] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 07/27/2011] [Accepted: 08/29/2011] [Indexed: 11/18/2022]
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8
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Liu JF, Li NB, Luo HQ. Resonance Rayleigh scattering, second-order scattering and frequency doubling scattering spectra for studying the interaction of erythrosine with Fe(phen)3(2+) and its analytical application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:631-637. [PMID: 21536488 DOI: 10.1016/j.saa.2011.03.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2010] [Revised: 03/01/2011] [Accepted: 03/16/2011] [Indexed: 05/26/2023]
Abstract
In a weak alkaline Britton-Robinson buffer medium, erythrosine (Ery) can react with Fe(phen)(3)(2+) to form 1:1 ion-association complex, which will cause not only the changes of the absorption spectra, but also the remarkable enhancement of resonance Rayleigh scattering (RRS), second-order scattering (SOS) and frequency doubling scattering (FDS) spectra, and the appearance of new spectra of RRS, SOS and FDS. The maximum RRS, SOS and FDS wavelengths (λ(ex)/λ(em)) of the ion-association complex are located at 358/358 nm, 290/580 nm and 780/390 nm, respectively. The increments of scattering intensities (ΔI) are directly proportional to the concentration of Ery in a certain range. The detection limits for Ery are 0.028 μg mL(-1) for RRS method, 0.068 μg mL(-1) for SOS method and 0.11 μg mL(-1) for FDS method, respectively. Among them, the RRS method has the highest sensitivity. Based on the above researches, a new highly sensitive and simple method for the determination of Ery has been developed. In this work, the spectral characteristics of absorption, RRS, SOS and FDS spectra, the optimum conditions of the reaction and influencing factors for the RRS, SOS and FDS intensities were investigated. In addition, the reaction mechanism was discussed.
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Affiliation(s)
- Jin Fang Liu
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
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Zhou JF, Li NB, Luo HQ. Analytical Application of Resonance Rayleigh Scattering, Frequency Doubling Scattering, and Second-Order Scattering Spectra for the Sodium Alginate-CTAB System. ANAL LETT 2011. [DOI: 10.1080/00032711003783119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jin-Feng Zhou
- a Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University , Chongqing , China
| | - Nian-Bing Li
- a Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University , Chongqing , China
| | - Hong-Qun Luo
- a Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University , Chongqing , China
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Chen P, Hu X, Liu S, Liu Z, Song Y. Study on the resonance nonlinear scattering spectra of the interactions of promethazine hydrochloride and chlorpromazine hydrochloride with 12-tungstophosphoric acid and their analytical applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 77:207-212. [PMID: 20541454 DOI: 10.1016/j.saa.2010.05.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2009] [Revised: 05/08/2010] [Accepted: 05/15/2010] [Indexed: 05/29/2023]
Abstract
In pH 1.0 HCl medium, 12-tungstophosphoric acid (TP) reacted with promethazine hydrochloride (PMZ) and chlorpromazine hydrochloride (CPZ) to form ion-association complexes, which led to a great enhancement of the resonance nonlinear scattering such as second-order scattering (SOS) and frequency doubling scattering (FDS). Their maximum SOS and FDS peaks were located at 585 nm (TP-PMZ), 584 nm (TP-CPZ) and 388 nm (TP-PMZ), 329 nm (TP-CPZ), respectively. These results provided some indication for the determination of PMZ and CPZ by SOS and FDS methods. The linear range of TP-PMZ and TP-CPZ systems were 0.0069-2.5 microg mL(-1), 0.102-5.0 microg mL(-1) (SOS) and 0.079-6.0 microg mL(-1), 0.0133-5.0 microg mL(-1) (FDS), respectively. The detection limits (3sigma) of PMZ and CPZ were 2.08 ng mL(-1), 3.07 ng mL(-1) (SOS) and 2.22 ng mL(-1), 3.98 ng mL(-1) (FDS), respectively. In this work, the optimum reaction conditions, the influences of coexisting substances and ionic strength and analytical application have been investigated. The methods have been successfully applied to the determination of PMZ and CPZ in tablets. In addition, the composition of ion-association complexes and the reaction mechanism are also discussed.
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Affiliation(s)
- Peili Chen
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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Second-order Scattering and Frequency Doubling Scattering Spectra of Thallium(III)-Methotrexate System and Its Analytical Application. CHINESE J CHEM 2008. [DOI: 10.1002/cjoc.200890292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Hashemianzadeh SM, Rafati AA, Nojini ZB. Quantum chemical study of the host-guest inclusion complexes of the local anaesthetic drugs, procaine hydrochloride and butacaine hydrochloride, with α- and β-cyclodextrins. MONATSHEFTE FUR CHEMIE 2008. [DOI: 10.1007/s00706-007-0822-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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The Second-order Scattering of the Interaction of Pd Nanoparticles with Protein and Its Analytical Application. B KOREAN CHEM SOC 2007. [DOI: 10.5012/bkcs.2007.28.10.1746] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Li A, Zhao H, Jin L. Protein analysis with terbium (III) and sodium dodecyl sulphonate by a second-order scattering technique. LUMINESCENCE 2007; 22:9-14. [PMID: 16871646 DOI: 10.1002/bio.920] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This is the first report of terbium(III) as a probe of second-order scattering (SOS) for the determination of proteins in human serum at nanogram levels. A sensitive method has been developed using light scattering, based on the fact that the weak SOS of proteins can be enhanced in the presence of terbium(III) and sodium dodecyl sulphonate (SDS). With this method, 7.0 x 10(-9)-1.0 x 10(-5) g/mL human serum albumin (HSA) and 5.0 x 10(-9)-5.0 x 10(-6) g/mL gamma-globulin can be determined; the detection limits were 4.4 ng/mL for HSA and 3.1 ng/mL for gamma-globulin. The method has been applied to the detection of total proteins in human serum samples, and the results are consistent with those obtained by the Coomassie brilliant blue (CBB) G-250 assay.
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Affiliation(s)
- Aiyun Li
- Department of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China
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WANG X, SHEN B, ZHAO H, JIN L. Determination of Ulifloxacin by Terbium-sensitized Fluorescence with Second-order Scattering and Its Applications. ANAL SCI 2007; 23:1373-6. [DOI: 10.2116/analsci.23.1373] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Xiaoli WANG
- College of Chemistry, Beijing Normal University
| | - Bo SHEN
- College of Chemistry, Beijing Normal University
| | | | - Linpei JIN
- College of Chemistry, Beijing Normal University
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Ding F, Zhao H, Jin L, Zheng D. Study of the influence of silver nanoparticles on the second-order scattering and the fluorescence of the complexes of Tb(III) with quinolones and determination of the quinolones. Anal Chim Acta 2006. [DOI: 10.1016/j.aca.2006.02.060] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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He YQ, Liu SP, Kong L, Liu ZF. A study on the sizes and concentrations of gold nanoparticles by spectra of absorption, resonance Rayleigh scattering and resonance non-linear scattering. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2005; 61:2861-6. [PMID: 16165025 DOI: 10.1016/j.saa.2004.10.035] [Citation(s) in RCA: 162] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2004] [Revised: 10/19/2004] [Accepted: 10/27/2004] [Indexed: 05/04/2023]
Abstract
Liquid phase gold nanoparticles with different diameters and colors can be prepared using sodium citrate reduction method by controlling the amounts of sodium citrate. The mean diameters of gold nanoparticles are measured by transmission electron microscope (TEM). Gold nanoparticles with different sizes have specific absorption spectra. When the diameters of nanoparticles is between 12 and 41 nm, the maximum absorption peaks locate at 520-530 nm and there are red shifts gradually with the increase of diameters of gold nanoparticles. And when the size of gold nanoparticle is constant, the absorbance is proportional to the concentration of gold. Obvious resonance Rayleigh scattering (RRS) and the resonance non-linear scattering such as second-order scattering (SOS) and frequency-doubling scattering (FDS) appear at the same time as well, and the maximum scattering peaks are located at 286 nm (RRS), 480 nm (SOS) and 310 nm (FDS), respectively. When the concentration of gold is constant, absorbance and the intensities of RRS, SOS and FDS (I(RRS), I(SOS) and I(FDS)) have linear relationships with the diameters of gold nanoparticles. When the diameter of gold nanoparticle is constant, the absorbance and I(RRS), I(SOS), I(FDS) are directly proportional to the concentrations of gold nanoparticles. Therefore, it is very useful for studying the liquid phase gold nanoparticles by investigating the absorption, RRS, SOS and FDS spectra.
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Affiliation(s)
- You Qiu He
- School of Chemistry and Chemical Engineering, Southwest China Normal University, Chongqing 400715, PR China
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Ding F, Zhao H, Chen S, Ouyang J, Jin L. Study of the interaction of nucleic acid with europium(III) and CTMAB and determination of nucleic acids at nanogram levels by the second-order scattering. Anal Chim Acta 2005. [DOI: 10.1016/j.aca.2004.12.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Huang CZ, Li YF. Resonance light scattering technique used for biochemical and pharmaceutical analysis. Anal Chim Acta 2003. [DOI: 10.1016/s0003-2670(03)00630-5] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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