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Ambaison FE, Ramasamy SK, Natarajan S, Venkatesan G, Awad Alahmadi T, Rohini P, A A. A carboethoxy quinoline-Derived Schiff base chemosensor: Crystal structure, selective Hg 2+ ion detection and its computational study. ENVIRONMENTAL RESEARCH 2024; 252:118983. [PMID: 38692421 DOI: 10.1016/j.envres.2024.118983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 04/09/2024] [Accepted: 04/21/2024] [Indexed: 05/03/2024]
Abstract
Environmental monitoring of mercury (Hg2+) ions has become increasingly important as a result of their detrimental effects on biological organisms at all levels. To recognize toxic metal ions, utmost effort has been devoted to developing new materials that are highly selective, ultra-sensitive, and provide rapid response. In this context, a new chemosensor, 2-imino [N - (N-amido phenyl)]-6-methoxy-3-carbethoxy quinoline (L), has been synthesized by combining 2-formyl-6-methoxy-3-carbethoxy quinoline and benzhydrazide and it has been extensively characterized by NMR, FTIR, ESI-Mass and SCXRD analysis. Probe L has excellent specificity and sensitivity toward Hg2+ ions in semi-aqueous solutions, with a detection limit of 0.185 μM, regardless of the presence of other interfering cations. Chromogenic behavior was demonstrated by the L when it changed the color of the solution from colorless to light yellow, a change that can be observed visually. The probe L forms a 1:1 stochiometric complex with an estimated association constant (Ka) of 6.74 × 104 M-1. The 1H NMR change and density functional theory calculations were analyzed to improve our understanding of the sensing mechanism. Also, an inexpensive and simple paper-based test kit has been developed for the on-site detection of mercury ions in water samples.
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Affiliation(s)
- Franklin Ebenazer Ambaison
- Post-Graduate and Research Department of Chemistry, Chikkanna Government Arts College, Tiruppur-641 602, Tamil Nadu, India
| | - Selva Kumar Ramasamy
- Department of Chemistry, M.M. Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana. 133207. India.
| | - Sampathkumar Natarajan
- Post-Graduate and Research Department of Chemistry, Chikkanna Government Arts College, Tiruppur-641 602, Tamil Nadu, India.
| | - Geetha Venkatesan
- Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600 077, India
| | - Tahani Awad Alahmadi
- Department of Pediatrics, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, PO Box-2925, Riyadh, 11461, Saudi Arabia
| | - Ponnusamy Rohini
- Department of Physics, Bannari Amman Institute of Technology, Sathyamangalam, 638 401, Tamil Nadu, India
| | - Anderson A
- School of Mechanical Engineering, Sathyabama Institute of Science and Technology, Chennai, 600119, India
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Sojdeh S, Banitalebi Dehkordi A, Badiei A, Zarrabi A, Makvandi P, Ashrafizadeh M, Saeb MR, Lima EC, Rabiee M, Asadnia M, Webster TJ, Rabiee N. N-doped carbon nanospheres as selective fluorescent probes for mercury detection in contaminated aqueous media: chemistry, fluorescence probing, cell line patterning, and liver tissue interaction. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:40327-40339. [PMID: 36609970 DOI: 10.1007/s11356-022-25068-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 12/26/2022] [Indexed: 01/09/2023]
Abstract
A precise nano-scale biosensor was developed here to detect Hg2+ in aqueous media. Nitrogen-doped carbon nanospheres (NCS) created from the pyrolysis of melamine-formaldehyde resin were characterized by FESEM, XRD, Raman spectra, EDS, PL, UV-vis spectra, and N2 adsorption-desorption, and were used as a highly selective and sensitive probe for detecting Hg2+ in aqueous media. The sensitivity of NCS to Hg2+ was evaluated by photoluminescence intensity fluctuations under fluorescence emission in the vicinity of 390 nm with a λexc of 350 nm. The fluorescence intensity of the NCS probe weakened in the presence of Hg2+ owing to the effective fluorescence quenching by that, which is not corresponding to the special covalent liking between the ligand and the metal. The effects of the fluorescence nanoprobe concentration, pH, and sensing time were monitored to acquire the best conditions for determining Hg2+. Surprisingly, NCS revealed excellent selectivity and sensitivity towards Hg2+ in the samples containing Co2+, Na+, K+, Fe2+, Mn2+, Al3+, Pb2+, Ni2+, Ca2+, Cu2+, Mg2+, Cd2+, Cr3+, Li+, Cs+, and Ba2+. The fluorescence response was linearly proportional to Hg2+ concentration in 0.013-0.046 µM with a limit of detection of 9.58 nM. The in vitro and in vivo toxicological analyses confirmed the completely safe and biocompatible features of NCS, which provides promise for use for water, fruit, vegetable, and/or other forms of natural-connected materials exposed to Hg2+, with no significant toxicity noticed toward different cells/organs/tissues.
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Affiliation(s)
- Soheil Sojdeh
- School of Chemistry, College of Science, University of Tehran, P.O. Box, Tehran, 14155-6455, Iran
| | - Ali Banitalebi Dehkordi
- School of Chemistry, College of Science, University of Tehran, P.O. Box, Tehran, 14155-6455, Iran
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, P.O. Box, Tehran, 14155-6455, Iran
| | - Ali Zarrabi
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Istanbul, Turkey
| | - Pooyan Makvandi
- Centre for Materials Interfaces, Istituto Italiano Di Tecnologia, 56025, Pisa, Italy
| | - Milad Ashrafizadeh
- Sabanci University, Orta Mahalle, Üniversite Caddesi No. 27, Orhanlı, Tuzla, 34956, Istanbul, Turkey
| | - Mohammad Reza Saeb
- Department of Polymer Technology, Gdańsk University of Technology, G. Narutowicza 11/12 80-233, Gdańsk, Poland
| | - Eder C Lima
- Institute of Chemistry, Federal University of Rio Grande Do Sul (UFRGS), Av. Bento Goncalves 9500, Postal Box, 15003, Porto Alegre, ZIP, 91501-970, Brazil.
| | - Mohammad Rabiee
- Biomaterials Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Mohsen Asadnia
- School of Engineering, Macquarie University, New South Wales, 2109, Sydney, Australia
| | - Thomas J Webster
- School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tijian, 300130, China.,School of Engineering, Saveetha University, Chennai, 602105, India.,Interdisciplinary Laboratory for Advanced Materials (LIMAV), Materials Science and Engineering Graduate Program, Federal University of Piaui, Teresina, 64049-550, Brazil
| | - Navid Rabiee
- Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, 6150, Australia
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Guo S, Fan C, Liu G, Pu S. A colorimetric and fluorescent chemosensor for Hg 2+ based on a photochromic diarylethene with a quinoline unit. RSC Adv 2018; 8:39854-39864. [PMID: 35558256 PMCID: PMC9091323 DOI: 10.1039/c8ra08358d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 11/20/2018] [Indexed: 11/25/2022] Open
Abstract
A new colorimetric and fluorescent 'on-off' chemosensor, 1O, based on a photochromic diarylethene with a quinoline unit was designed and synthesized. The chemosensor 1O demonstrated selective and sensitive detection of Hg2+ ions in the presence of other competitive metal ions in acetonitrile. The stoichiometric ratio of the sensor 1O for Hg2+ was determined to be 1 : 1, and the limit of detection of the probe 1O was calculated to be 56.3 nM for Hg2+. In addition, a molecular logic circuit with four inputs and one output was successfully constructed with UV/vis light and metal-responsive behavior. ESI-MS spectroscopy, Job's plot analysis, and 1H NMR titration experiments confirm the binding behavior between 1O and Hg2+.
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Affiliation(s)
- Shuli Guo
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 PR China +86 791 83805212 +86 791 83805212 +86 791 83831996
| | - Congbin Fan
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 PR China +86 791 83805212 +86 791 83805212 +86 791 83831996
| | - Gang Liu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 PR China +86 791 83805212 +86 791 83805212 +86 791 83831996
| | - Shouzhi Pu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 PR China +86 791 83805212 +86 791 83805212 +86 791 83831996
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Özbek N, Alp H, Çelik G, Ak T, Çağılcı OC, Yaylı N, Ocak Ü, Ocak M. A Simple Spectrofluorimetric Method for Iron Determination with a Chalcone-Based Schiff Base. J Fluoresc 2016; 27:635-641. [PMID: 27914031 DOI: 10.1007/s10895-016-1992-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 11/25/2016] [Indexed: 11/24/2022]
Abstract
A chalcone-based Schiff base (5), capable of detecting iron (III) in partially aqueous media, has been designed, then synthesized by the condensation of 3-formyl-2-hydroxyquinoline and acetophenone. To determine iron (III) ion, a simple spectrofluorimetric method was developed by using the synthesized Schiff base. The developed method was validated by analyzing the certified reference material (CRM-SA-C Sandy Soil C). During the process of the determination of iron in food samples, satisfactory accuracy was obtained for spinach and rocket. Nitric acid and hydrogen fluoride were used for the digestion of the certified reference material whereas only nitric acid was used for food samples, in a closed microwave system. Measurements were carried out by using the modified standard addition method. The standard addition graph was linear until 5.0 mg/L. in determination of iron (III). Detection and quantification limits were 0.06 and 0.20 mg/L., respectively. The presented method is simple, time-saving, cost-effective and suitable for determination of iron content of soil and foods.
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Affiliation(s)
- Nurhayat Özbek
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey
| | - Hakan Alp
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey
| | - Gonca Çelik
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey
| | - Tuğba Ak
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey
| | - Osman Can Çağılcı
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey
| | - Nurettin Yaylı
- Faculty of Pharmaceutical Sciences, Pharmaceutical Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey
| | - Ümmühan Ocak
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
| | - Miraç Ocak
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey
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5
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Micro- and nanostructured sol-gel-based materials for optical chemical sensing (2005–2015). Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1863-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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6
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Nazari M, Forouzandeh MA, Divarathne CM, Sidiroglou F, Martinez MR, Konstas K, Muir BW, Hill AJ, Duke MC, Hill MR, Collins SF. UiO-66 MOF end-face-coated optical fiber in aqueous contaminant detection. OPTICS LETTERS 2016; 41:1696-1699. [PMID: 27082322 DOI: 10.1364/ol.41.001696] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Optical quality metal organic framework (MOF) thin films were integrated, for the first time, to the best of our knowledge, with structured optical fiber substrates to develop MOF-fiber sensors. The MOF-fiber structure, UiO-66 (Zr-based MOF is well known for its water stability), is a thin film that acts as an effective analyte collector. This provided a Fabry-Perot sensor in which concentrations of up to 15 mM Rhodamine-B were detected via wavelength shifts in the interference spectrum.
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Santos AR, Escudero D, González L, Orellana G. Unravelling the Quenching Mechanisms of a Luminescent RuIIProbe for CuII. Chem Asian J 2015; 10:622-9. [DOI: 10.1002/asia.201403340] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Indexed: 11/08/2022]
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8
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Ostrowska K, Kaźmierska A, Rąpała-Kozik M, Kalinowska-Tłuścik J. Ratiometric fluorescent Zn2+and In3+receptors of fused pyrazine with an aminopropanol chain in acetonitrile. NEW J CHEM 2014. [DOI: 10.1039/c3nj00750b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Shenashen MA, El-Safty SA, Elshehy EA. Architecture of optical sensor for recognition of multiple toxic metal ions from water. JOURNAL OF HAZARDOUS MATERIALS 2013; 260:833-843. [PMID: 23856314 DOI: 10.1016/j.jhazmat.2013.06.025] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Revised: 05/16/2013] [Accepted: 06/10/2013] [Indexed: 06/02/2023]
Abstract
Here, we designed novel optical sensor based on the wormhole hexagonal mesoporous core/multi-shell silica nanoparticles that enabled the selective recognition and removal of these extremely toxic metals from drinking water. The surface-coating process of a mesoporous core/double-shell silica platforms by several consequence decorations using a cationic surfactant with double alkyl tails (CS-DAT) and then a synthesized dicarboxylate 1,5-diphenyl-3-thiocarbazone (III) signaling probe enabled us to create a unique hierarchical multi-shell sensor. In this design, the high loading capacity and wrapping of the CS-DAT and III organic moieties could be achieved, leading to the formation of silica core with multi-shells that formed from double-silica, CS-DAT, and III dressing layers. In this sensing system, notable changes in color and reflectance intensity of the multi-shelled sensor for Cu(2+), Co(2+), Cd(2+), and Hg(2+) ions, were observed at pH 2, 8, 9.5 and 11.5, respectively. The multi-shelled sensor is added to enable accessibility for continuous monitoring of several different toxic metal ions and efficient multi-ion sensing and removal capabilities with respect to reversibility, selectivity, and signal stability.
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Affiliation(s)
- M A Shenashen
- National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
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10
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El‐Safty SA, Abdellatef S, Ismael M, Shahat A. Optical nanosphere sensor based on shell-by-shell fabrication for removal of toxic metals from human blood. Adv Healthc Mater 2013; 2:854-62. [PMID: 23307510 DOI: 10.1002/adhm.201200326] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 11/26/2012] [Indexed: 11/10/2022]
Abstract
Because toxic heavy metals tend to bioaccumulate, they represent a substantial human health hazard. Various methods are used to identify and quantify toxic metals in biological tissues and environment fluids, but a simple, rapid, and inexpensive system has yet to be developed. To reduce the necessity for instrument-dependent analysis, we developed a single, pH-dependent, nanosphere (NS) sensor for naked-eye detection and removal of toxic metal ions from drinking water and physiological systems (i.e., blood). The design platform for the optical NS sensor is composed of double mesoporous core-shell silica NSs fabricated by one-pot, template-guided synthesis with anionic surfactant. The dense shell-by-shell NS construction generated a unique hierarchical NS sensor with a hollow cage interior to enable accessibility for continuous monitoring of several different toxic metal ions and efficient multi-ion sensing and removal capabilities with respect to reversibility, longevity, selectivity, and signal stability. Here, we examined the application of the NS sensor for the removal of toxic metals (e.g., lead ions from a physiological system, such as human blood). The findings show that this sensor design has potential for the rapid screening of blood lead levels so that the effects of lead toxicity can be avoided.
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Affiliation(s)
- S. A. El‐Safty
- National Institute for Materials Science (NIMS), 1‐2‐1 Sengen, Tsukuba, Ibaraki 305‐0047, Japan
- Graduate School for Advanced Science and Engineering, Waseda University, 3‐4‐1, Okubo, Shinjuku‐ku, Tokyo 169‐8555, Japan
| | - S. Abdellatef
- National Institute for Materials Science (NIMS), 1‐2‐1 Sengen, Tsukuba, Ibaraki 305‐0047, Japan
| | - M. Ismael
- National Institute for Materials Science (NIMS), 1‐2‐1 Sengen, Tsukuba, Ibaraki 305‐0047, Japan
| | - A. Shahat
- National Institute for Materials Science (NIMS), 1‐2‐1 Sengen, Tsukuba, Ibaraki 305‐0047, Japan
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Uddin MN, Salam MA, Hossain MA. Spectrophotometric measurement of Cu(DDTC)2 for the simultaneous determination of zinc and copper. CHEMOSPHERE 2013; 90:366-373. [PMID: 22921658 DOI: 10.1016/j.chemosphere.2012.07.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 07/11/2012] [Accepted: 07/17/2012] [Indexed: 06/01/2023]
Abstract
A spectrophotometric procedure for the simultaneous determination of zinc(II) and copper(II) in a mixture using diethyldithiocarbamate (DDTC) as ligand has been described. Complexes formed with DDTC was extracted with CHCl(3)/CCl(4) and the absorbance was measured at 435 nm which is equivalent of Cu(II) in sample only as Zn(DDTC)(2) has no absorption. Zinc measurement is based on the quantitative displacement of zinc from Zn(DDTC)(2) by Cu(II) with the addition of excess copper(II) to the extract. The absorbance is measured again where additional absorbance is equivalent to zinc. The molar absorptivity and sandall's sensitivity at this wavelength are 2.86×10(5) mol(-1) L cm(-1) and 3.076 ng cm(-2), respectively. Reproducibility with in 4% and detection limits of 0.29 μg mL(-1) was obtained. Linear calibration range was 0.2-14 μg mL(-1) for zinc and 0.2-12 μg mL(-1) for copper with the regression coefficient (r(2)) 0.998 for each. In the presence of a suitable masking agent (EDTA) very good selectivity was achieved. The method was extended to the determination of zinc and copper in a number of environmental water and soil samples, biological, pharmaceutical, fertilizer and food samples.
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Qazi HH, Mohammad ABB, Akram M. Recent progress in optical chemical sensors. SENSORS (BASEL, SWITZERLAND) 2012; 12:16522-56. [PMID: 23443392 PMCID: PMC3571796 DOI: 10.3390/s121216522] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2012] [Revised: 11/08/2012] [Accepted: 11/24/2012] [Indexed: 11/16/2022]
Abstract
Optical chemical sensors have promoted escalating interest in the determination of various pollutants in the environment, which are creating toxicity and may cause serious health problems. This review paper focuses particularly on the recent progress and developments in this field; the working principles and basic classes of optical chemical sensors have been briefly described.
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Affiliation(s)
- Hummad Habib Qazi
- Infocomm Research Alliance (ICRA), Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia; E-Mail:
| | - Abu Bakar bin Mohammad
- Infocomm Research Alliance (ICRA), Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia; E-Mail:
| | - Muhammad Akram
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia; E-Mail:
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Lin S, Chang CC, Lin CW. A REVERSIBLE OPTICAL SENSOR BASED ON CHITOSAN FILM FOR THE SELECTIVE DETECTION OF COPPER IONS. BIOMEDICAL ENGINEERING: APPLICATIONS, BASIS AND COMMUNICATIONS 2012. [DOI: 10.4015/s101623721250041x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Heavy metals greatly influence animal physiology, even at small doses. Among these metals, the copper ion is of great concern due to its effects on humans and wide applications in industry. Compared to atomic absorption spectroscopy and inductively coupled plasma-mass spectrometry, which destroy the samples that are analyzed, optical techniques do not decompose the analyte and have become a popular field of recent research. In this paper, we combined a novel optical detector that did not require sample-labeling, called surface plasmon resonance (SPR), with chitosan to detect copper ions by modifying the functional groups of chitosan through pH modification. Compared to other optical detectors, the SPR system was relatively fast and involved fewer experimental confounding factors. The three-dimensional structure of chitosan was used to obtain lower detection limits. Moreover, modification of the chitosan functional groups resulted in efficient regeneration by controlling the pH. A detection limit of 0.1 μM was obtained (linear range: 0.5–10 μM, R2 = 0.976), and the specificity was certified by comparing the copper ion with six other ions. Additionally, we successfully regenerated the SPR chips by modifying the functional groups. In conclusion, the chitosan–SPR system detected copper ions with improved detection limits using a quick and simple regeneration method.
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Affiliation(s)
- Shenhsiung Lin
- Department of Medicine, National Yang-Ming University, Taipei 11221, Taiwan
| | - Chia-Chen Chang
- Institute of Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Chii-Wann Lin
- Institute of Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan
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Ma C, Zeng F, Wu G, Wu S. A nanoparticle-supported fluorescence resonance energy transfer system formed via layer-by-layer approach as a ratiometric sensor for mercury ions in water. Anal Chim Acta 2012; 734:69-78. [DOI: 10.1016/j.aca.2012.05.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 04/27/2012] [Accepted: 05/15/2012] [Indexed: 10/28/2022]
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15
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Lopes Pinheiro SC, Descalzo AB, Raimundo IM, Orellana G, Moreno-Bondi MC. Fluorescent ion-imprinted polymers for selective Cu(II) optosensing. Anal Bioanal Chem 2011; 402:3253-60. [DOI: 10.1007/s00216-011-5620-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2011] [Revised: 11/27/2011] [Accepted: 11/28/2011] [Indexed: 10/14/2022]
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16
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Duric S, Tzschucke CC. Synthesis of Unsymmetrically Substituted Bipyridines by Palladium-Catalyzed Direct C−H Arylation of Pyridine N-Oxides. Org Lett 2011; 13:2310-3. [DOI: 10.1021/ol200565u] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Sasa Duric
- Freie Universität Berlin, Institut für Chemie und Biochemie, Takustrasse 3, 14195 Berlin, Germany
| | - C. Christoph Tzschucke
- Freie Universität Berlin, Institut für Chemie und Biochemie, Takustrasse 3, 14195 Berlin, Germany
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Aragay G, Pons J, Merkoçi A. Recent Trends in Macro-, Micro-, and Nanomaterial-Based Tools and Strategies for Heavy-Metal Detection. Chem Rev 2011; 111:3433-58. [DOI: 10.1021/cr100383r] [Citation(s) in RCA: 1023] [Impact Index Per Article: 78.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Gemma Aragay
- Nanobioelectronics & Biosensors Group, Institut Català de Nanotecnologia (CIN2, ICN-CSIC), 08193, Bellaterra, Barcelona, Spain
- Departament of Chemistry, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain
| | - Josefina Pons
- Departament of Chemistry, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain
| | - Arben Merkoçi
- Nanobioelectronics & Biosensors Group, Institut Català de Nanotecnologia (CIN2, ICN-CSIC), 08193, Bellaterra, Barcelona, Spain
- ICREA, Barcelona, Spain
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