1
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Sun Y, Xu G, Wang Y, Song P, Zhang Y, Xia L. Surface plasmon-assisted catalytic reduction of p-nitrothiophenol for the detection of Fe 2+ by surface-enhanced Raman spectroscopy. Anal Biochem 2023; 680:115314. [PMID: 37678582 DOI: 10.1016/j.ab.2023.115314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 08/12/2023] [Accepted: 09/04/2023] [Indexed: 09/09/2023]
Abstract
Herein, we developed a concise, time-efficient, and high selective assay for detecting Fe2+ through its triggered surface plasmon-assisted reduction reaction of p-nitrothiophenol (PNTP) to p,p'-dimercaptoazobenzene (DMAB) on the surface of gold nanoparticles (AuNPs) based on surface-enhanced Raman scattering (SERS) spectroscopy. When Fe2+ was added to the PNTP-AuNPs system, the appearance of three characteristic peaks at 1142, 1392, and 1440 cm-1 attributed to DMAB demonstrated that Fe2+ induced the catalytic coupling reaction of PNTP. The Raman intensity ratio of the peak at 1142 cm-1 to the peak at 1336 cm-1 and the concentration of Fe2+ presented a good linear response from 10 to 100 μM with a limit of detection (LOD) of 0.35 μM. More importantly, the entire detection process can be completed within 2 min and further successfully used for the detection of Fe2+ in river water.
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Affiliation(s)
- Ye Sun
- College of Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Guangda Xu
- College of Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Yue Wang
- College of Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Peng Song
- College of Physics, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Yao Zhang
- College of Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China; Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, People's Republic of China.
| | - Lixin Xia
- College of Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China.
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2
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Sánchez-Ponce L, Casanueva-Marenco MJ, Díaz-de-Alba M, Galindo-Riaño MD, Granado-Castro MD. A Novel Polymer Inclusion Membrane-Based Green Optical Sensor for Selective Determination of Iron: Design, Characterization, and Analytical Applications. Polymers (Basel) 2023; 15:4082. [PMID: 37896326 PMCID: PMC10610280 DOI: 10.3390/polym15204082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 09/26/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
The design, characterization, and analytical application of a green optical sensor for the selective determination of Fe(II) ions is proposed. The sensor is based on the immobilization of the chromogenic reagent picolinaldehyde salicyloylhydrazone (SHPA) within a polymer inclusion membrane. To reduce solvent usage, the reagent was synthesized using a green mechanochemical procedure. The components for sensor preparation were optimized with a sequential simplex method and the optimal composition was found to be 0.59 g cellulose triacetate (base polymer), 0.04 g SHPA (chemosensor reagent), 4.9 mL dibutyl phthalate (plasticizer), and 38 mL dichloromethane (solvent). The conditions of iron analysis were also optimized resulting in pH 6 for aqueous solution, 90 min exposure time and 10 min short-term stability. The optical sensor showed a linear range from the limit of detection (0.48 µmol L-1) to 54 µmol L-1 Fe(II). The precision of the method was found to be 1.44% and 1.19% for 17.9 and 45 µmol L-1 Fe(II), respectively. The characteristics of the sensor allowed the design of a Fe(II)/Fe(III) speciation scheme. The methodology was successfully applied to the determination of iron in food preservatives, food additives, and dietary supplement. Additionally, the Fe speciation scheme was successfully applied to an agricultural fertilizer.
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Affiliation(s)
| | | | - Margarita Díaz-de-Alba
- Department of Analytical Chemistry, Institute of Biomolecules (INBIO), Faculty of Sciences, International Campus of Excellence of the Sea (CEI-MAR), University of Cadiz, Campus Rio San Pedro, Puerto Real, 11510 Cadiz, Spain; (L.S.-P.); (M.J.C.-M.); (M.D.G.-R.); (M.D.G.-C.)
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3
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Li X, Chu D, Wang J, Qi Y, Yuan W, Li J, Zhou Z. A dicyanoisophorone-based ICT fluorescent probe for the detection of Hg 2+ in water/food sample analysis and live cell imaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 295:122628. [PMID: 36965244 DOI: 10.1016/j.saa.2023.122628] [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: 11/07/2022] [Revised: 02/18/2023] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
Mercury ions are notoriously difficult to biodegradable, and its abnormal bioaccumulation in the human body through the food chain can cause various diseases. Therefore, the quantitative and real-time detection of Hg2+ is very extremely important. Herein, we have brilliant designed and synthesized (E)-O-(4-(2-(3-(dicyanomethylene)-5,5-dimethylcyclohex-1-en-1-yl)vinyl)phenyl) O-phenyl carbonothioate (ICM-Hg) as a selective fluorescent probe for Hg2+ detection in real samples and intracellular staining. ICM-Hg displayed high specificity toward Hg2+ by activating the intramolecular charge transfer (ICT) process, resulting in distinguished color change from colorless to bright yellow along with noticeable switch on yellow fluorescence emission. The fluorescent intensity of ICM-Hg at 585 nm shows a well linear relationship in the range of Hg2+ concentration (0-45 μM), and the detection of limit for Hg2+ is calculated to be 231 nM. Promisingly, ICM-Hg can efficiently detect Hg2+ in real samples including tap water, tea, shrimp, and crab with quantitative recovery as well as the intracellular fluorescence imaging.
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Affiliation(s)
- Xiangqian Li
- School of Chemical & Environmental Engineering, Key Lab of Ecological Restoration in Hilly Areas, Pingdingshan University, Pingdingshan 467000, PR China
| | - Dandan Chu
- Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, PR China
| | - Juan Wang
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, PR China
| | - Yueheng Qi
- Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, PR China
| | - Weiwei Yuan
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, PR China
| | - Jingguo Li
- Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, PR China.
| | - Zhan Zhou
- Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, PR China; College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, PR China.
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4
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Ngororabanga JMV, Dembaremba TO, Mama N, Tshentu ZR. Azo-hydrazone tautomerism in a simple coumarin azo dye and its contribution to the naked-eye detection of Cu 2+ and other potential applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 289:122202. [PMID: 36521339 DOI: 10.1016/j.saa.2022.122202] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 11/02/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
A new tailor-made azo dye of coumarin connected to phenolic derivative is presented herein. Azo-hydrazone tautomerism in aqueous solution of the dye was observed and studied using spectroscopic assays such as 1H NMR, absorption and emission assays, and theoretical studies. Tautomerism was attributed to the presence of a labile phenolic hydrogen in the ortho position to the azo functionality and the hydrazone was found to be the more dominant tautomer. Influence of metal ions on the azo-hydrazone chemical equilibrium and how the accompanying colour and spectroscopic changes can be exploited for various functions, especially the detection and quantification of Cu2+ in aqueous environments was explored. The presence of Cu2+ affects the azo-hydrazone equilibrium resulting in visual appearance and spectroscopic changes and the likely binding sites for Cu2+ were evaluated. Cu2+ pushes the azo-hydrazone equilibrium towards the more conjugated form and the presence of other metal ions does not have any perceivable impact on this mechanism. The dye showed potential applications as a sensor in colorimetric and spectroscopic detection and quantification of Cu2+ in domestic and environmental water samples, photo-imprinting and as a logic gate. The limits of detection (LOD) and quantification (LOQ) for Cu2+ were found to be 0.0779 mg/L and 0.236 mg/L, respectively, much lower than the World Health Organization (WHO) guideline limit for Cu2+ levels in drinking water.
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Affiliation(s)
- Jean Marie Vianney Ngororabanga
- Department of Mathematics, Sciences and Physical Education, University of Rwanda College of Education, Po Box 55 Rwamagana-Eastern Province, Rwanda.
| | - Tendai O Dembaremba
- Department of Chemistry, Nelson Mandela University, Port Elizabeth 6031, South Africa
| | - Neliswa Mama
- Department of Chemistry, Nelson Mandela University, Port Elizabeth 6031, South Africa
| | - Zenixole R Tshentu
- Department of Chemistry, Nelson Mandela University, Port Elizabeth 6031, South Africa
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5
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Kamel RM, Shahat A, Abd El-Emam MM, Kilany EM. New nano materials-based optical sensor for application in rapid detection of Fe(II) and Pd(II) ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 288:122203. [PMID: 36477004 DOI: 10.1016/j.saa.2022.122203] [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: 10/15/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
For the analytical determination of Fe(II) and Pd(II) concentrations, a novel optical sensor based on spectrophotometric technique was used. The optical sensor was prepared by direct immobilization of a novel synthesized chromophore, 5-amino-phenanthrolin-3 formyl salicylic acid, onto nanocellulose. Human vision can identify the color associated with Fe II ions, and spectrophotometric methods can measure it with detection and quantification limits of 0.239 and 0.796 ppb, respectively. Pd(II) detection and quantification limits were 0.318 ppb and 1.06 ppb, respectively. The effects of various parameters on the detection of Fe(II) or Pd(II) ion content were investigated and optimized. The optical phenanthroline-nanocellulose (5-Phen) sensor could be reproduced multiple times and used with a higher capacity each time. The results demonstrated that the 5-Phen sensor could measure Fe(II) in human blood serum accurately and successfully even without any pre-concentration.
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Affiliation(s)
- Rasha M Kamel
- Suez University, Faculty of Science, Chemistry Department, 43518 Suez, Egypt.
| | - Ahmed Shahat
- Suez University, Faculty of Science, Chemistry Department, 43518 Suez, Egypt
| | - Manar M Abd El-Emam
- Suez University, Faculty of Science, Chemistry Department, 43518 Suez, Egypt
| | - Esraa M Kilany
- Suez University, Faculty of Petroleum and Mining Engineering, Science and Mathematics Department, Suez, Egypt
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6
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Dewi IR, Rujiralai T, Putson C, Cheewasedtham W. A novel double metal-dithizone functionalized polyurethane electrospun nanofiber and film for colorimetric determination of hexavalent chromium. RSC Adv 2023; 13:2852-2859. [PMID: 36756414 PMCID: PMC9846713 DOI: 10.1039/d2ra07636e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 01/08/2023] [Indexed: 01/19/2023] Open
Abstract
This work proposes a highly specific method of Cr6+ determination based on the double reactions of two metals, Co2+ with dithizone to form a (DTZ)-Co2+ complex, and the replacement of Co2+ in the formed complex with Cr6+. The fast degradation of DTZ in solution in wet analysis was overcome by preparing dithizone functionalized polyurethane nanofibers that were electrospun into a membrane (DTZ/PU-NF) and a microwell plate film (DTZ/PU-MPF). For comparison, the performance of diphenylcarbazide (DPC), a currently used complexing agent for Cr6+, was also investigated. Colour changes were detected as red-green-blue values. The DTZ/PU-NF was smooth, with an average diameter of 384.09 nm and no bead appeared. A dense network structure was formed. The best formulation of DTZ, PU and Co2+ was also applied as a microwell plate film. In the presence of Cr6+, the colour of DTZ-Co2+ changed from red to magenta. Among the three studied methods, the colorimetric DTZ-Co2+/PU-NF presented the best results. Its linearity range was 0.001-1.0 mg L-1, with a regression equation of Cr6+ = -0.189 + (0.0056 × red) + (0.0086 × green) - (0.0129 × blue), R 2 of 0.990. The limit of detection was 0.001 mg L-1 and the precision was 1.7%. The applicability of DTZ/PU-NF was validated for Cr6+ in vegetable oils with recoveries of 89.5-116.8%. The sensitivity of DTZ/PU-NF was ten times higher than that of DTZ/PU-MPF. The methods based on DTZ-Co2+/PU-NF and DTZ-Co2+/PU-MPF proved to be highly selective, rapid, user-friendly, simple and reliable.
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Affiliation(s)
- Indiah Ratna Dewi
- Analytical Chemistry and Environment Research Unit, Division of Science, Faculty of Science and Technology, Prince of Songkla University Pattani 94000 Thailand
| | - Thitima Rujiralai
- Analytical Chemistry and Environment Research Unit, Division of Science, Faculty of Science and Technology, Prince of Songkla University Pattani 94000 Thailand .,Division of Physical Science, Faculty of Science, Prince of Songkla University Hat Yai Songkhla 90110 Thailand
| | - Chatchai Putson
- Division of Physical Science, Faculty of Science, Prince of Songkla UniversityHat YaiSongkhla90110Thailand,Center of Excellence in Nanotechnology for Energy (CENE)Hat YaiSongkhla 90112Thailand
| | - Wilairat Cheewasedtham
- Analytical Chemistry and Environment Research Unit, Division of Science, Faculty of Science and Technology, Prince of Songkla University Pattani 94000 Thailand
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7
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A review on designing nanofibers with high porous and rough surface via electrospinning technology for rapid detection of food quality and safety attributes. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Advances on ultra-sensitive electrospun nanostructured electrochemical and colorimetric sensors for diabetes mellitus detection. NANO MATERIALS SCIENCE 2021. [DOI: 10.1016/j.nanoms.2021.05.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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9
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Ngororabanga JMV, Moyo CB, Tshentu ZR. A novel multidentate pyridyl ligand: A turn-on fluorescent chemosensor for Hg 2+ and its potential application in real sample analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 242:118651. [PMID: 32795949 DOI: 10.1016/j.saa.2020.118651] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 06/11/2023]
Abstract
A novel pyridyl-based ligand with multiple binding sites was developed as potential turn on fluorescent probe for mercuric ion. In comparison with other transition metal ions, the ligand displayed a significant optical selectivity and sensitivity for Hg2+ in aqueous solution with a remarkable fluorescence enhancement. The obtained spectroscopic response was related to the inhibition of the photo-chemical mechanism known as photo-induced electron transfer (PET) in the ligand and CN isomerization by Hg2+ binding. A good linearity between fluorescence responses and Hg2+ concentration was obtained in the range 3.3 × 10-9 M-1.6 × 10-8 M and a nanomolar level limit of detection (LOD) (1.4 × 10-9 M ~ 0.28 ppb) and limit of quantification (LOQ) (4.8 × 10-9 M ~ 0.93 ppb) were obtained. Both LOD and LOQ values are very low compared to the reported permissible Hg2+ level in drinking water (2 ppb) by US Environmental Protection Agency (EPA). The possible binding mode between ligand and Hg2+ were determined using Job's plot analysis and density functional theory (DFT) calculations and a complex with 1:1 stoichiometric ratio was suggested. The response of the pyridyl ligand upon Hg2+ addition was noted to be fast without any time delay and reversible. The performance of the ligand at nanomolar level of Hg2+ and real sample application of the proposed method was investigated and satisfactory results were obtained.
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Affiliation(s)
| | - Cyprian B Moyo
- Department of Chemistry, Nelson Mandela University, Port Elizabeth 6031, South Africa
| | - Zenixole R Tshentu
- Department of Chemistry, Nelson Mandela University, Port Elizabeth 6031, South Africa.
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10
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Application trends of nanofibers in analytical chemistry. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115992
expr 834212330 + 887677890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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11
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12
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Ngororabanga JMV, Tshentu ZR, Mama N. A New Highly Selective Colorimetric and Fluorometric Coumarin-based Chemosensor for Hg 2. J Fluoresc 2020; 30:985-997. [PMID: 32583123 DOI: 10.1007/s10895-020-02542-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/15/2020] [Indexed: 11/30/2022]
Abstract
A novel colorimetric and fluorometric method based on coumarin as signalling unit was developed for Hg2+ recognition and quantification. Initially, the alkyne functionality was incorporated into a coumarin system and the resulting molecule showed higher specificity and sensitivity for Hg2+ over other cations in both absorption and emission sensing assays. The Hg2+ recognition was detected as visible colour change from colourless to yellow and as fluorescence quenching. The colour change was assigned to the increased intramolecular charge transfer (ICT) in the signalling unit upon Hg2+ binding whereas a decline in the fluorescence intensity was ascribed to the heavy atom effect from Hg2+. In order to generate a material with high sensing performance level, alkyne-functionalized molecule was hosted into a polymeric material. The resulting functionalized polymer showed higher sensitivity and selectivity for Hg2+ over its corresponding coumarin molecule. The investigation of the possible binding modes for Hg2+ suggested both alkyne and triazole functionalities as potential binding sites for Hg2+. The limit of detection (LOD) and limit of quantification (LOQ) of the proposed method were evaluated and values less than a recommended maximum level of Hg2+contaminant in drinking water (2.00 μg/L) were obtained (LOD = 0.44 μg/L and LOQ = 1.33μg/L). The real-life application of the method was investigated using natural water samples containing Hg2+ levels equivalent to the maximum tolerable concentration of Hg2+ in drinking water. The outcomes suggested that the method could be used in the sensing and determination of Hg2+ level of contaminant in the environment.
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Affiliation(s)
| | - Zenixole R Tshentu
- Department of Chemistry, Nelson Mandela University, Port Elizabeth, 6031, South Africa
| | - Neliswa Mama
- Department of Chemistry, Nelson Mandela University, Port Elizabeth, 6031, South Africa
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13
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Balusamy B, Senthamizhan A, Uyar T. Functionalized Electrospun Nanofibers as a Versatile Platform for Colorimetric Detection of Heavy Metal Ions in Water: A Review. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E2421. [PMID: 32466258 PMCID: PMC7288479 DOI: 10.3390/ma13102421] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/22/2020] [Accepted: 05/22/2020] [Indexed: 01/09/2023]
Abstract
The increasing heavy metal pollution in the aquatic ecosystem mainly driven by industrial activities has raised severe concerns over human and environmental health that apparently necessitate the design and development of ideal strategies for the effective monitoring of heavy metals. In this regard, colorimetric detection provides excellent opportunities for the easy monitoring of heavy metal ions, and especially, corresponding solid-state sensors enable potential opportunities for their applicability in real-world monitoring. As a result of the significant interest originating from their simplicity, exceptional characteristics, and applicability, the electrospun nanofiber-based colorimetric detection of heavy metal ions has undergone radical developments in the recent decade. This review illustrates the range of various approaches and functional molecules employed in the fabrication of electrospun nanofibers intended for the colorimetric detection of various metal ions in water. We highlight relevant investigations on the fabrication of functionalized electrospun nanofibers encompassing different approaches and functional molecules along with their sensing performance. Furthermore, we discuss upcoming prospectus and future opportunities in the exploration of designing electrospun nanofiber-based colorimetric sensors for real-world applications.
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Affiliation(s)
- Brabu Balusamy
- Department of Fiber Science & Apparel Design, College of Human Ecology, Cornell University, Ithaca, NY 14853, USA
| | - Anitha Senthamizhan
- Department of Fiber Science & Apparel Design, College of Human Ecology, Cornell University, Ithaca, NY 14853, USA
| | - Tamer Uyar
- Department of Fiber Science & Apparel Design, College of Human Ecology, Cornell University, Ithaca, NY 14853, USA
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14
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Hassan HM, Shahat A, Azzazy HM, El-aal RMA, El-Sayed WN, Elwahed AA, Awual MR. A novel and potential chemical sensor for effective monitoring of Fe(II) ion in corrosion systems of water samples. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104578] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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15
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Veeramuthu L, Venkatesan M, Liang FC, Benas JS, Cho CJ, Chen CW, Zhou Y, Lee RH, Kuo CC. Conjugated Copolymers through Electrospinning Synthetic Strategies and Their Versatile Applications in Sensing Environmental Toxicants, pH, Temperature, and Humidity. Polymers (Basel) 2020; 12:E587. [PMID: 32150907 PMCID: PMC7182922 DOI: 10.3390/polym12030587] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/12/2020] [Accepted: 02/19/2020] [Indexed: 11/16/2022] Open
Abstract
Conjugated copolymers (CCPs) are a class of polymers with excellent optical luminescent and electrical conducting properties because of their extensive π conjugation. CCPs have several advantages such as facile synthesis, structural tailorability, processability, and ease of device fabrication by compatible solvents. Electrospinning (ES) is a versatile technique that produces continuous high throughput nanofibers or microfibers and its appropriate synchronization with CCPs can aid in harvesting an ideal sensory nanofiber. The ES-based nanofibrous membrane enables sensors to accomplish ultrahigh sensitivity and response time with the aid of a greater surface-to-volume ratio. This review covers the crucial aspects of designing highly responsive optical sensors that includes synthetic strategies, sensor fabrication, mechanistic aspects, sensing modes, and recent sensing trends in monitoring environmental toxicants, pH, temperature, and humidity. In particular, considerable attention is being paid on classifying the ES-based optical sensor fabrication to overcome remaining challenges such as sensitivity, selectivity, dye leaching, instability, and reversibility.
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Affiliation(s)
- Loganathan Veeramuthu
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
| | - Manikandan Venkatesan
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
| | - Fang-Cheng Liang
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
| | - Jean-Sebastien Benas
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
| | - Chia-Jung Cho
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
| | - Chin-Wen Chen
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
| | - Ye Zhou
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China;
| | - Rong-Ho Lee
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan;
| | - Chi-Ching Kuo
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
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16
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Wei S, Tan L, Yin X, Wang R, Shan X, Chen Q, Li T, Zhang X, Jiang C, Sun G. A sensitive “ON–OFF” fluorescent probe based on carbon dots for Fe2+ detection and cell imaging. Analyst 2020; 145:2357-2366. [DOI: 10.1039/c9an02309g] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A sensitive fluorescent probe based on carbon dots has been synthesized by a one-pot hydrothermal method for the rapid detection of intracellular Fe2+.
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Affiliation(s)
- Shanshan Wei
- School of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
- Advanced Institute of Materials Science
| | - Lihong Tan
- School of Life Sciences
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Xiangyu Yin
- School of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
| | - Ruoming Wang
- School of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
| | - Xueru Shan
- School of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
| | - Qian Chen
- School of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
| | - Tinghua Li
- School of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
- Advanced Institute of Materials Science
| | - Xinyu Zhang
- School of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
- Advanced Institute of Materials Science
| | - Chunzhu Jiang
- School of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
| | - Guoying Sun
- School of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
- Advanced Institute of Materials Science
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17
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Borzoei M, Zanjanchi MA, Sadeghi-Aliabadi H, Saghaie L. Trace Determination of Iron in Real Waters and Fruit Juice Samples Using Rapid Method: Optimized Dispersive Liquid-Liquid Microextraction with Synthesized Nontoxic Chelating Agent. Biol Trace Elem Res 2019; 192:319-329. [PMID: 30810875 DOI: 10.1007/s12011-019-01662-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 02/04/2019] [Indexed: 01/24/2023]
Abstract
The purpose of this research was to optimize a new method for preconcentration and determination of trace iron concentrations in aqueous solutions. For this purpose, a newly synthesized ligand, 3-(3-hydroxy-2-methyl-4-oxopyridin-1(4H)-yl) benzoic acid (3-OH-3-MOPBA), was used in the dispersive liquid-liquid microextraction (DLLME) method coupled with UV-vis spectroscopy. The experiments considering input variables of extractant volume, disperser volume, salt concentration, and pH were designed with the aid of central composite design (CCD). The results were analyzed using response surface methodology (RSM). The limit of detection (LOD) was found to be 4.0 μg L-1 under the optimized conditions. A calibration curve with a good linearity (R2 = 0.9986) was obtained over the concentration range of 15-800 μg L-1. The relative standard deviations (RSD) were found to be around 2.1% (n = 7). The main advantages of the developed method are simple application, environment friendly, short time, and low cost which makes this method to be applied routinely for measuring iron in various water samples.
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Affiliation(s)
- Mohammad Borzoei
- Department of Chemistry, Faculty of Science, University of Guilan, Rasht, 41335-1914, Iran.
- Department of Medicinal Chemistry, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, 81746-73461, Iran.
| | - Mohammad Ali Zanjanchi
- Department of Chemistry, Faculty of Science, University of Guilan, Rasht, 41335-1914, Iran.
| | - Hojjat Sadeghi-Aliabadi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, 81746-73461, Iran
| | - Lotfollah Saghaie
- Department of Medicinal Chemistry, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, 81746-73461, Iran
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18
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In-situ fabrication of reduced graphene oxide/leucomethylene blue/platinum nanoparticles modified electrode for voltammetric determination of trace Fe(II) in seawater. Microchem J 2019. [DOI: 10.1016/j.microc.2019.104210] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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19
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Li Z, Ti M, Yang K, Li X, Wu L, He Y. Colorimetric detection of iron (II) using 4-mercaptobenzoic acid and 3,3′,5,5′-tetramethylbenzidine modified silver nanoparticles. Microchem J 2019. [DOI: 10.1016/j.microc.2019.104254] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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20
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Chen L, Tian X, Xia D, Nie Y, Lu L, Yang C, Zhou Z. Novel Colorimetric Method for Simultaneous Detection and Identification of Multimetal Ions in Water: Sensitivity, Selectivity, and Recognition Mechanism. ACS OMEGA 2019; 4:5915-5922. [PMID: 31459740 PMCID: PMC6648319 DOI: 10.1021/acsomega.9b00312] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
Accurate recognition and speciation analysis of heavy-metal ions in complex hydrological environments is always a serious challenge. In this work, we proposed a small-molecule-based ultrasensitive colorimetric detection strategy and successfully applied it to the accurate detection of Fe2+, Fe3+, Co2+, and Hg2+ in groundwater through the specific recognition of multiple ligands of different metal ions. The detection limits for Hg2+, Co2+, Fe2+, and Fe3+ are calculated to be 6.51, 0.34, 0.49, and 1.01 ppb, respectively, which are far below the drinking water standards and superior to most of the reported colorimetric sensors. Remarkably, the speciation analysis of Fe2+/Fe3+ also has been successfully realized by a one-step method without complex pretreatment. The speciation and concentration of Fe2+ and Fe3+ in actual water samples can be accurately identified and monitored. In addition, as an attempt of visual onsite detection, we have developed a simple test strip, which has been applied to visual monitoring of four metal ions with the detection limit estimated by the naked eye to be as low as ppb level. This proposed colorimetric method realizes the rapid, sensitive, and portable multiple metal ions recognition and Fe2+/Fe3+ speciation analysis, displaying great potential for onsite rapid water quality analysis.
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Affiliation(s)
- Linfeng Chen
- Faculty
of Materials Science and Chemistry, China
University of Geosciences, Wuhan 430074, China
| | - Xike Tian
- Faculty
of Materials Science and Chemistry, China
University of Geosciences, Wuhan 430074, China
| | - Dasha Xia
- School
of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Yulun Nie
- Faculty
of Materials Science and Chemistry, China
University of Geosciences, Wuhan 430074, China
| | - Liqiang Lu
- Faculty
of Materials Science and Chemistry, China
University of Geosciences, Wuhan 430074, China
| | - Chao Yang
- Faculty
of Materials Science and Chemistry, China
University of Geosciences, Wuhan 430074, China
| | - Zhaoxin Zhou
- Faculty
of Materials Science and Chemistry, China
University of Geosciences, Wuhan 430074, China
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21
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Choodum A, Sriprom W, Wongniramaikul W. Portable and selective colorimetric film and digital image colorimetry for detection of iron. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 208:40-47. [PMID: 30292149 DOI: 10.1016/j.saa.2018.09.062] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/03/2018] [Accepted: 09/30/2018] [Indexed: 06/08/2023]
Abstract
Iron is an important trace element in environmental and biological systems, the development of simple and selective methods for the determination of iron is important. In this work, completely biodegradable tapioca starch was introduced as the substrate to entrap standard chromogenic probes (1,10-phenanthroline) for fabrication of a novel colorimetric sensor for ferrous. A clear plasticized thin film from tapioca starch was fabricated inside a small plastic tube as a portable test kit. A red complex was obtained by exposing the film to a ferrous solution, while no color changes were obtained with various other ions, indicating excellent selectivity. The developed films were applied in conjunction with a digital image colorimetry for quantification of ferrous. Calculated molecular absorption of the red complex showed the widest linear range (0 to 10 mg L-1) with good linearity (R2 < 0.9934) with ferrous concentrations. The developed method provided good inter-day precision (1.75 to 3.97%RSD, 5 days 15 sensors), good accuracy (+2.35% to +4.57% relative error), and low detection limit (0.09 ± 0.01 mg L-1). The concentrations of ferrous ion in soil and water samples quantified by the developed method were not significantly different from atomic absorption spectrophotometry at 95% confidence level. The films were stable for at least three months.
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Affiliation(s)
- Aree Choodum
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand.
| | - Wilasinee Sriprom
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
| | - Worawit Wongniramaikul
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand; Research Program: The Development of Management System for Reduction and Control of Water Contamination and Distribution in Songkhla Lake Basin and the Western Coastline of the South of Thailand, Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand
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22
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In-situ decorated silver nanoparticles on electrospun poly (vinyl alcohol)/chitosan nanofibers as a plasmonic sensor for azathioprine determination. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.09.047] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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23
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24
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Lu S, Zhang X, Chen L, Yang P. Colorimetric determination of ferrous ion via morphology transition of gold nanorods. Mikrochim Acta 2017; 185:76. [PMID: 29594623 DOI: 10.1007/s00604-017-2602-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 12/01/2017] [Indexed: 01/26/2023]
Abstract
A colorimetric method is described for the determination of ferrous ion (Fe2+) with high sensitivity and selectivity. The method is based on catalytic etching of gold nanorod (NR). In an acid condition, Fe2+ reacts with H2O2 to produce superoxide radical (O2•-) that etches gold NRs from the low energy surface along the longitudinal direction preferentially. As a result, the changes in the absorption spectrum and color of gold NR can be measured and also can be detected visually. Under the optimal conditions, the assay has very low detection limit (13.5 nM) and a linear response in a concentration range of 75 to 1 μM. The method was applied to the determination of Fe2+ in spiked samples of fetal bovine serum and also transferred to a kind of test stripe for use in fast practical applications. A unique colorimetric sensing method is demonstrated for the colorimetric detection of Fe2+, again based on the oxidation of gold nanorods which leads to the blue-shift of the absorption. Graphical abstract A unique colorimetric sensing method was shown for the colorimetric detection of Fe2+. Fe2+reacts with H2O2 to generate superoxide radical that oxidize gold nanorods. This leads to a color change from blue-green to pink.
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Affiliation(s)
- Simin Lu
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Xiao Zhang
- School of Chemistry, University of New South Wales, Sydney, 2052, Australia
| | - Ling Chen
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Ping Yang
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, People's Republic of China.
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25
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Terra IAA, Mercante LA, Andre RS, Correa DS. Fluorescent and Colorimetric Electrospun Nanofibers for Heavy-Metal Sensing. BIOSENSORS 2017; 7:E61. [PMID: 29244741 PMCID: PMC5746784 DOI: 10.3390/bios7040061] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/09/2017] [Accepted: 12/13/2017] [Indexed: 12/11/2022]
Abstract
The accumulation of heavy metals in the human body and/or in the environment can be highly deleterious for mankind, and currently, considerable efforts have been made to develop reliable and sensitive techniques for their detection. Among the detection methods, chemical sensors appear as a promising technology, with emphasis on systems employing optically active nanofibers. Such nanofibers can be obtained by the electrospinning technique, and further functionalized with optically active chromophores such as dyes, conjugated polymers, carbon-based nanomaterials and nanoparticles, in order to produce fluorescent and colorimetric nanofibers. In this review we survey recent investigations reporting the use of optically active electrospun nanofibers in sensors aiming at the specific detection of heavy metals using colorimetry and fluorescence methods. The examples given in this review article provide sufficient evidence of the potential of optically electrospun nanofibers as a valid approach to fabricate highly selective and sensitive optical sensors for fast and low-cost detection of heavy metals.
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Affiliation(s)
- Idelma A A Terra
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos 13560-970, SP, Brazil.
| | - Luiza A Mercante
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos 13560-970, SP, Brazil.
- PPG-CEM, Department of Materials Engineering, Center for Exact Sciences and Technology, Federal University of São Carlos (UFSCar), São Carlos 13565-905, SP, Brazil.
| | - Rafaela S Andre
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos 13560-970, SP, Brazil.
| | - Daniel S Correa
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos 13560-970, SP, Brazil.
- PPGQ, Department of Chemistry, Center for Exact Sciences and Technology, Federal University of São Carlos (UFSCar), São Carlos 13565-905, SP, Brazil.
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26
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Zhang N, Qiao R, Su J, Yan J, Xie Z, Qiao Y, Wang X, Zhong J. Recent Advances of Electrospun Nanofibrous Membranes in the Development of Chemosensors for Heavy Metal Detection. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1604293. [PMID: 28422441 DOI: 10.1002/smll.201604293] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Indexed: 05/21/2023]
Abstract
It is critical to detect and analyze the heavy metal pollutions in environments and foods. Chemosensors have been widely investigated for fast detection of analytes such as heavy metals due to their unique advantages. In order to improve the detection sensitivity of chemosensors, recently electrospun nanofibrous membranes (ENMs) have been explored for the immobilization of chemosensors or receptors due to their high surface-to-volume ratio, high porosity, easiness of fabrication and functionalization, controllability of nanofiber properties, low cost, easy detection, no obvious pollution to the detection solution, and easy post-treatment after the detection process. The purpose of this review is to summarize and guide the development and application of ENMs in the field of chemosensors for the detection of analytes, especially heavy metals. First, heavy metals, chemosensors, and four types of preparation methods for ENM-immobilized chemosensors/receptors are briefly introduced. And then, ENM-immobilized chemosensors/receptors and their application progresses for optical, electro, and mass detections of heavy metals are reviewed according to the four types of preparation methods. Finally, the application of ENM-immobilized chemosensors/receptors is summarized and an outlook is provided. The review will provide an instruction to the research and development of ENM-immobilized chemosensors/receptors for the detection of analytes.
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Affiliation(s)
- Nan Zhang
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, College of Food Science & Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Ruirui Qiao
- Key Laboratory of Colloid Interface Science and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, China
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, 3052, Australia
| | - Jing Su
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Juan Yan
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, College of Food Science & Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Zhiqiang Xie
- Department of Mechanical & Industrial Engineering, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Yiqun Qiao
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, College of Food Science & Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Xichang Wang
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, College of Food Science & Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Jian Zhong
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, College of Food Science & Technology, Shanghai Ocean University, Shanghai, 201306, China
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Gao ZF, Li TT, Xu XL, Liu YY, Luo HQ, Li NB. Green light-emitting polyepinephrine-based fluorescent organic dots and its application in intracellular metal ions sensing. Biosens Bioelectron 2016; 83:134-41. [PMID: 27108256 DOI: 10.1016/j.bios.2016.04.041] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/31/2016] [Accepted: 04/14/2016] [Indexed: 10/21/2022]
Abstract
In this paper, we present a class of bio-dots, polyepinephrine (PEP)-based fluorescent organic dots (PEP-FODs) for selective and sensitive detection of Fe(2+), Fe(3+), and Cu(2+). The PEP-FODs were derived from epinephrine via self-polymerization at relatively low temperature down to 60°C with low cytotoxicity and relative long lifetime (7.24ns). The surface morphology and optical properties of the synthesized PEP-FODs were characterized. We found that the diameters of PEP-FODs were mainly distributed in the narrow range of 2-4nm with an average diameter of 2.9nm. An optimal emission peak located at 490nm was observed when the green light-emitting PEP-FODs were excited at 400nm. It is discovered that Fe(2+), Fe(3+), and Cu(2+)can strongly quench the fluorescence of PEP-FODs through the nonradiative electron-transfer. The detection limit of 0.16, 0.67, and 0.15μM was obtained for Fe(2+), Fe(3+), and Cu(2+), respectively. The independent sensing platform of Fe(2+), Fe(3+), and Cu(2+)could be established by using NaF as a complexing agent and by regulating the reaction time between NaF and metal ions. Cell viability studies reveal that the as-prepared PEP-FODs possess good solubility and biocompatibility, making it as excellent imaging nanoprobes for intracellular Fe(2+), Fe(3+), and Cu(2+)sensing. The developed PEP-FODs might hold great promise to broaden applications in nanotechnology and bioanalysis.
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Affiliation(s)
- Zhong Feng Gao
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ting Ting Li
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China
| | - Xiao Lei Xu
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China
| | - Yi Yao Liu
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China
| | - Hong Qun Luo
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Nian Bing Li
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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28
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Senthamizhan A, Balusamy B, Uyar T. Glucose sensors based on electrospun nanofibers: a review. Anal Bioanal Chem 2015; 408:1285-306. [DOI: 10.1007/s00216-015-9152-x] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 10/20/2015] [Accepted: 10/27/2015] [Indexed: 12/26/2022]
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29
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Yoldas A, Algi F. An imidazo-phenanthroline scaffold enables both chromogenic Fe(ii) and fluorogenic Zn(ii) detection. RSC Adv 2015. [DOI: 10.1039/c4ra14182b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A promising dual channel responsive probe, which can simultaneously induce chromogenic and fluorogenic responses to Fe(ii) and Zn(ii) ions, respectively, is described.
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Affiliation(s)
- Aykut Yoldas
- Laboratory of Organic Materials (LOM)
- Canakkale Onsekiz Mart University
- TR-17100 Canakkale
- Turkey
| | - Fatih Algi
- Department of Biotechnology and Molecular Biology & ASUBTAM BioNanoTech Lab
- Aksaray University
- TR-68100 Aksaray
- Turkey
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30
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A visual strip sensor for determination of iron. Anal Chim Acta 2014; 851:87-94. [DOI: 10.1016/j.aca.2014.08.047] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 08/20/2014] [Accepted: 08/25/2014] [Indexed: 01/12/2023]
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