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Shrivastava KC, Kumar KSA, Sengupta A, Ali SM, Ramkumar J. Reversible Hydrophobic Deep Eutectic Solvent-Based Uranyl-Sensing Optode Film in Aqueous Streams: Color Transformation and Reusability. Anal Chem 2024; 96:12658-12666. [PMID: 39041178 DOI: 10.1021/acs.analchem.4c01357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
A hydrophobic deep eutectic solvent (HDES)-based optode was designed for the preconcentration and determination of the UO22+ ion in aqueous media using spectroscopic techniques [energy-dispersive X-ray fluorescence (EDXRF) and solid-state absorption]. The optode was developed by incorporation of HDES (tri-n-octyl phosphine oxide and decanoic acid in an equimolar ratio), tri-(2-ethylhexyl) phosphate, and 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol into a cellulose triacetate matrix. Characterization studies were carried out using different techniques to understand the roles of HDES as a plasticizer, UO22+ extractant, and Br-PADAP immobilizer. Uptake studies revealed that the optimal pH was 3 and sorption followed the type II adsorption isotherm. Uranium in the U-sorbed optode can be directly analyzed over a large concentration range of 0.021 × 10-3-2.1 × 10-3 Mol L-1 using EDXRF. The optode film exhibited a linear dynamic range of 0.84 × 10-6-84 × 10-6 Mol L-1 for uranium, with a lowest limit of detection of 0.084 × 10-6 Mol L-1 by colorimetric analysis. This optode-based method was employed for seawater analysis for its UO22+ concentration without any matrix separation, and the concentration was found to be 1.30 ± 0.06 × 10-8 Mol L-1. The optode exhibited better selectivity for UO22+ in the presence of various cations including Sr2+ and Cs+ in an aqueous medium. Compared to other prevailing optical sensors, this optode performed better in terms of key factors like pH, equilibration time, reusability, and detection limit.
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Affiliation(s)
- Komal C Shrivastava
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - K S Ajish Kumar
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Arijit Sengupta
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Sheikh Musharaf Ali
- Chemical Engineering Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
- Homi Bhabha National Institute, Mumbai 400094, India
| | - Jayshree Ramkumar
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
- Homi Bhabha National Institute, Mumbai 400094, India
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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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Gouda M, Khalaf MM, Elmushyakhi A, Abou Taleb MF, Abd El-Lateef HM. Bactericidal activities of Sm2O3/ Sb2O3/graphene oxide loaded cellulose acetate film. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY 2022; 21:4419-4427. [DOI: 10.1016/j.jmrt.2022.11.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Affiliation(s)
- Toshio Takayanagi
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minamijyousanjima-cho, Tokushima, 770-8506, Japan.
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Mhatre AM, Chappa S, Gupta SK, Pandey AK. LED based optical dip-probe spectrophotometer for in situ monitoring of uranyl and uranous ions in aqueous process stream. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sarkar S, Gill SS, Das Gupta G, Kumar Verma S. Water toxicants: a comprehension on their health concerns, detection, and remediation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:53934-53953. [PMID: 35624361 DOI: 10.1007/s11356-022-20384-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 04/18/2022] [Indexed: 06/15/2023]
Abstract
Water is an essential moiety for the human use since a long time. Availability of good-quality water is very essential, as it is used in almost all the industrial, agricultural, and household activities. However, several factors such as increased urbanization and industrialization, extensive use of chemicals, natural weathering of rocks, and human ignorance led to incorporation of enormous toxicants into the water. The water toxicants are broadly classified as inorganic, organic, and radiological toxicants. Inorganic toxicants include heavy metals (As, Cr, Cd, Hg, Ni, Pb) and metalloids, ammonia, nitrate, and fluoride. Uranium is included in radiological toxicants which also causes chemical toxicity. Organic pollutants include polycyclic aromatic hydrocarbons, polychlorinated biphenyls, phenolic compounds, phthalate esters, pesticides, pharmaceutical and personal care products, perchlorates, and flame retardants. These toxicants are harmful for the ecosystem as well as for the human beings causing different types of health complications like lung cancer, nasal cancer, gingivitis, severe vomiting and abdominal pain, hormonal imbalance, skeletal damage, neurotoxicity like Alzheimer and Parkinson disease, renal toxicity, nephrotoxicity, etc. The USEPA and WHO specified the permissible concentration of these pollutants in the drinking water. Determination techniques having high sensitivity, low cost, rapid onsite, and real-time detection of traces of water pollutants are discussed. This review also covers in depth about the remediation techniques, for the control of water toxicants, such as chelation of the heavy metals, intoxication of pollutants using various plants, adsorption of toxicants using different sorbent medias, and photocatalytic breakdown of persistent organic pollutants (POPs).
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Affiliation(s)
- Saptarshy Sarkar
- Department of Pharmaceutical Analysis, ISF College of Pharmacy, Moga, 142 001, Punjab, India
| | - Sukhbir Singh Gill
- Department of Pharmaceutical Analysis, ISF College of Pharmacy, Moga, 142 001, Punjab, India
| | - Ghanshyam Das Gupta
- Department of Pharmaceutical Analysis, ISF College of Pharmacy, Moga, 142 001, Punjab, India
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, 142 001, Punjab, India
| | - Sant Kumar Verma
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga, 142 001, Punjab, India.
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7
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Zhang J, Ren Y, Xia T, Du Y, Shao L, Tang H, Yang S. Post‐synthesis metal‐organic framework for turn‐on ratiometric fluorescence sensing of UO
2
2+. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jun Zhang
- Institute of Materials China Academy of Engineering Physics Mianyang 621907 China
| | - Yiming Ren
- Institute of Materials China Academy of Engineering Physics Mianyang 621907 China
| | - Tifeng Xia
- Institute of Materials China Academy of Engineering Physics Mianyang 621907 China
| | - Yunfeng Du
- Institute of Materials China Academy of Engineering Physics Mianyang 621907 China
| | - Lang Shao
- Institute of Materials China Academy of Engineering Physics Mianyang 621907 China
| | - Hao Tang
- Institute of Materials China Academy of Engineering Physics Mianyang 621907 China
| | - Shanli Yang
- Institute of Materials China Academy of Engineering Physics Mianyang 621907 China
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Kumar R S, Venkatesan V, Bhaskar R, Kumar SKA, Sivaramakrishna A, Vijayakrishna K, Brahmmananda Rao CVS, Sivaraman N, Sahoo SK. Rapid detection strategies for the ultra-level chemosensing of uranyl ions. Dalton Trans 2021; 50:14706-14713. [PMID: 34585704 DOI: 10.1039/d1dt01803e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A simple and reliable colorimetric probe N,N'-bis-(4-diethylamino-2-hydroxybenzylidene)-1,10-phenanthroline-2,9-carbohydrazide (L) has been synthesised by reacting 4-(diethylamino)salicylaldehyde with 1,10-phenanthroline-2,9-dicarbohydrazide. The sensing ability of L was studied by its interactions with various f-block metal ions and other selected metal ions from s- and d-block by colorimetry, UV-visible spectrophotometry, and smartphone integrated red-green-blue (RGB) model in DMSO : H2O (7 : 3, v/v). The pale-yellow colour of L turns to wine-red upon interaction with uranyl ions (UO22+) and yellow-orange in the presence of Th4+, Zr4+, Fe3+, and Lu3+ ions. Other tested metal ions did not show any colour change of L. This color change offered a simple, quick, and consistent method for the selective and sensitive visual detection of trace levels of UO22+ ions without any need for sophisticated instruments. Sensor L exhibits two absorption bands at 358 and 389 nm due to ligand-to-ligand charge transfer (LLCT). Upon interaction of L with UO22+ and Th4+ ions, absorption bands are exhibited at 480 nm and 422 nm, respectively, due to ligand-to-metal charge transfer (LMCT). The UV-vis spectral studies indicated the formation of a 1 : 2 ligand-to-metal complex between L and UO22+ with an estimated association constant of 1.0 × 104 M-2. Using L, the concentration of UO22+ can be detected as low as 73 nM and 150 nM by spectrophotometry and RGB methods, respectively, without any interference from other tested ions with an RSD < 5% (n = 3). The binding mechanism was studied by 1H NMR titration, ESI mass, and FT-IR spectral analysis and was well supported by theoretical results. Overall, sensor L demonstrates promising analytical applicability for the detection of UO22+ ions in a semi-aqueous medium.
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Affiliation(s)
- Selva Kumar R
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India. .,Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, (SIMATS), Chennai - 602105, Tamil Nadu, India
| | - Vetriarasu Venkatesan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India.
| | - R Bhaskar
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India.
| | - S K Ashok Kumar
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India.
| | - Akella Sivaramakrishna
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India.
| | - Kari Vijayakrishna
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneshwar, Odisha 752050, India
| | | | - N Sivaraman
- Indira Gandhi Centre for Atomic Research, HBNI, Kalpakkam-603102, Tamil Nadu, India
| | - Suban K Sahoo
- Department of Applied Chemistry, S. V. National Institute Technology, Surat-395007, Gujarat, India
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9
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Raza ZA, Munim SA, Ayub A. Recent developments in polysaccharide-based electrospun nanofibers for environmental applications. Carbohydr Res 2021; 510:108443. [PMID: 34597980 DOI: 10.1016/j.carres.2021.108443] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 12/20/2022]
Abstract
Electrospinning has become an inevitable approach to produce nanofibrous structures for diverse environmental applications. Polysaccharides, due to their variety of types, biobased origins, and eco-friendly, and renewable nature are wonderful materials for the said purpose. The present review discusses the electrospinning process, the parameters involved in the formation of electrospun nanofibers in general, and the polysaccharides in specific. The selection of materials to be electrospun depends on the processing conditions and properties deemed desirable for specific applications. Thereby, the conditions to electrospun polysaccharides-based nanofibers have been focused on for possible environmental applications including air filtration, water treatment, antimicrobial treatment, environmental sensing, and so forth. The polysaccharide-based electrospun membranes, for instance, due to their active adsorption sites could find significant potential for contaminants removal from the aqueous systems. The study also gives some recommendations to overcome any shortcomings faced during the electrospinning and environmental applications of polysaccharide-based matrices.
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Affiliation(s)
- Zulfiqar Ali Raza
- Department of Applied Sciences, National Textile University, Faisalabad, 37610, Pakistan.
| | - S A Munim
- Department of Applied Sciences, National Textile University, Faisalabad, 37610, Pakistan
| | - Asif Ayub
- Department of Applied Sciences, National Textile University, Faisalabad, 37610, Pakistan
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10
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Guo H, Mei P, Xiao J, Huang X, Ishag A, Sun Y. Carbon materials for extraction of uranium from seawater. CHEMOSPHERE 2021; 278:130411. [PMID: 33831686 DOI: 10.1016/j.chemosphere.2021.130411] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/21/2021] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
With the rapid growth of population and industrialization, the energy crisis and environmental pollution as two main difficulties urgently need to be solved nowadays. The development and utilization of nuclear energy is of great significance for solving energy support, national security and environmental protection. As the raw material of nuclear energy, a lot of uranium in seawater provide a guarantee for the sustainable and green development of nuclear power plants. Recently, various new carbon-based materials (e.g., carbon nanofibers, multiwalled carbon nanotube, graphene) have been attracted widely intense interest in extraction of uranium from seawater due to large specific surface area, excellent acid-base resistance, high adsorption performance, environmental friendly and low cost. Thus, the systematic reviews concerning the extraction of uranium from seawater on various carbon-based materials were highly desirable. In this review, the extraction methods of uranium from seawater, including electrochemical, photocatalytic and adsorption methods are briefly introduced. Then the application and mechanism of four generation carbon-based materials on the extraction of uranium from seawater are systematically reviewed in details. Finally, the current challenges and future trends of uranium extraction from seawaters are proposed. This review provides the guideline for designing carbon-based materials with high adsorption capacity and exceptional selectivity for U(VI) extraction from seawater.
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Affiliation(s)
- Han Guo
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Peng Mei
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Jingting Xiao
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Xingshui Huang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Alhadi Ishag
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Yubing Sun
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China.
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Wu J, Jiao X, Chen D, Li C. Dual-stimuli responsive color-changing nanofibrous membranes as effective media for anti-counterfeiting and erasable writing. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126626] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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12
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Yue Y, Gu J, Han J, Wu Q, Jiang J. Effects of cellulose/salicylaldehyde thiosemicarbazone complexes on PVA based hydrogels: Portable, reusable, and high-precision luminescence sensing of Cu 2. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123798. [PMID: 33113738 DOI: 10.1016/j.jhazmat.2020.123798] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/20/2020] [Accepted: 08/28/2020] [Indexed: 06/11/2023]
Abstract
Novel portable, high-precision, and reusable fluorescent polyvinyl alcohol (PVA)-borax hydrogel sensors were prepared to detect Cu2+ in aqueous environment. A TEMPO-oxidized cellulose nanofibers/salicylaldehyde thiosemicarbazone (TOCN/ST) complex was further incorporated into the PVA-borax matrix. The in situ polymerization of TOCN/ST complex enhanced the mechanical properties of the hydrogels and improved the accuracy of detection. The resultant hydrogels were thermo reversible, and it converted to the liquid state during heating, which could greatly reduce the deviations caused in the detection of solid sensors. After cooling, the hydrogel could transform into the solid condition, which was easily portable. The sensor induced a significant luminescence quenching to the Cu2+ at 485 nm, with a detection limit of 0.086 μM. In the presence of ethylenediaminetetraacetic acid disodium, Cu2+ were tightly seized, causing the liberation of TOCN/ST complex and thus, a reversible "ON-OFF-ON" fluorescence behavior was displayed. The fluorescence intensity was maintained at 82 % after 10 uses, and the mechanical strength was maintained at 85 % after 3 uses. The anti-bacterial activity test also confirmed the TOCN/ST complex was extremely potent in suppressing the growth and reproduction of Escherichia coli. The proposed hydrogel provides a new insight into the detection of Cu2+ in aqueous environments.
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Affiliation(s)
- Yiying Yue
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, Jiangsu, China.
| | - Jiamin Gu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Jingquan Han
- College of Material Science and Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China.
| | - Qinglin Wu
- School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge 70803, LA, USA
| | - Jianchun Jiang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, Jiangsu, China.
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Wu X, Yin Q, Huang Q, Mao Y, Hu Q, Wang H. Rational designing an azo colorimetric sensor with high selectivity and sensitivity for uranium environmental monitoring. Anal Chim Acta 2020; 1140:153-167. [DOI: 10.1016/j.aca.2020.10.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/02/2020] [Accepted: 10/03/2020] [Indexed: 10/23/2022]
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Zhong W, Wang L, Qin D, Zhou J, Duan H. Two Novel Fluorescent Probes as Systematic Sensors for Multiple Metal Ions: Focus on Detection of Hg 2. ACS OMEGA 2020; 5:24285-24295. [PMID: 33015445 PMCID: PMC7528189 DOI: 10.1021/acsomega.0c02481] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 08/20/2020] [Indexed: 06/11/2023]
Abstract
Many precedents prove that fluorescent probes are promising candidates for detection of metal ions in the environment and biological systems. Herein, two novel photoinduced electron transfer (PET)-based fluorescent probes, CH 3 -R6G and CN-R6G, were rationally synthesized by incorporating a triazolyl benzaldehyde moiety into the rhodamine 6G fluorophore. The optical properties of these probes were studied using an ultraviolet-visible (UV-vis) absorption spectrophotometer and a fluorescence spectrophotometer. Through the analysis of the test results, it is concluded that the selectivity and sensitivity of these two probes to Hg2+ are better than to other metal ions (Ag+, Al3+, Ba2+, Cd2+, Co3+, Cu2+, Cr3+, Fe3+, Ga2+, K+, Mg2+, Na+, Ni2+, Pb2+, and Zn2+). According to the standard curve diagram, the detection limits of CH 3 -R6G and CN-R6G were determined to be 1.34 × 10-8 and 1.56 × 10-8 M, respectively. Reaction of the probes with Hg2+ resulted in a color change of the solution from colorless to pink. The corresponding molecular geometric configuration, orbital electron distribution, and orbital energy of these two compounds were predicted by density functional theory (DFT). The two probes CH 3 -R6G and CN-R6G have been successfully used for imaging Hg2+ in live breast cancer cells, thereby indicating their great potential for the micro-detection of Hg2+ in vivo.
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Affiliation(s)
- Wenxia Zhong
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250353, Shandong, China
| | - Lizhen Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250014, Shandong, China
| | - Dawei Qin
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250353, Shandong, China
| | - Jianhua Zhou
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250353, Shandong, China
| | - Hongdong Duan
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250353, Shandong, China
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15
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Kamel S, A. Khattab T. Recent Advances in Cellulose-Based Biosensors for Medical Diagnosis. BIOSENSORS 2020; 10:E67. [PMID: 32560377 PMCID: PMC7345568 DOI: 10.3390/bios10060067] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 06/10/2020] [Accepted: 06/15/2020] [Indexed: 12/11/2022]
Abstract
Cellulose has attracted much interest, particularly in medical applications such as advanced biosensing devices. Cellulose could provide biosensors with enhanced biocompatibility, biodegradability and non-toxicity, which could be useful for biosensors. Thus, they play a significant role in environmental monitoring, medical diagnostic tools, forensic science, and foodstuff processing safety applications. This review summarizes the recent developments in cellulose-based biosensors targeting the molecular design principles toward medical detection purposes. The recognition/detection mechanisms of cellulose-based biosensors demonstrate two major classes of measurable signal generation, including optical and electrochemical cellulosic biosensors. As a result of their simplicity, high sensitivity, and low cost, cellulose-based optical biosensors are particularly of great interest for including label-free and label-driven (fluorescent and colorimetric) biosensors. There have been numerous types of cellulose substrates employed in biosensors, including several cellulose derivatives, nano-cellulose, bacterial cellulose, paper, gauzes, and hydrogels. These kinds of cellulose-based biosensors were discussed according to their preparation procedures and detection principle. Cellulose and its derivatives with their distinctive chemical structure have demonstrated to be versatile materials, affording a high-quality platform for accomplishing the immobilization process of biologically active molecules into biosensors. Cellulose-based biosensors exhibit a variety of desirable characteristics, such as sensitivity, accuracy, convenience, quick response, and low-cost. For instance, cellulose paper-based biosensors are characterized as being low-cost and easy to operate, while nano-cellulose biosensors are characterized as having a good dispersion, high absorbance capacity, and large surface area. Cellulose and its derivatives have been promising materials in biosensors which could be employed to monitor various bio-molecules, such as urea, glucose, cell, amino acid, protein, lactate, hydroquinone, gene, and cholesterol. The future interest will focus on the design and construction of multifunctional, miniaturized, low-cost, environmentally friendly, and integrated biosensors. Thus, the production of cellulose-based biosensors is very important.
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Affiliation(s)
- Samir Kamel
- Cellulose and Paper Department, National Research Centre, Cairo 12622, Egypt;
| | - Tawfik A. Khattab
- Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo 12622, Egypt
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16
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Zeng T, Mo G, Hu Q, Wang G, Liao W, Xie S. Microbial characteristic and bacterial community assessment of sediment sludge upon uranium exposure. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 261:114176. [PMID: 32088436 DOI: 10.1016/j.envpol.2020.114176] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/29/2020] [Accepted: 02/10/2020] [Indexed: 06/10/2023]
Abstract
The microbial characteristics and bacterial communities of sediment sludge upon different concentrations of exposure to uranium were investigated by high solution transmission electron microscopy (HRTEM), energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS) and high-throughput sequencing. After exposure to initial uranium concentrations of 10-50 μM for 24 h in synthetic wastewater, the removal efficiencies of uranium reached 80.7%-96.5%. The spherical and short rod bacteria were dominant in the sludge exposed to uranium. HRTEM-EDS and XPS analyses indicated that reduction and adsorption were the main mechanisms for uranium removal. Short-term exposure to low concentrations of uranium resulted in a decrease in bacterial richness but an increase in diversity. A dramatic change in the composition and abundances of the bacterial community were present in the sediment sludge exposed to uranium. The highest removal efficiency was identified in the sediment sludge exposed to 30 μM uranium, and the dominant bacteria included Acinetobacter (44.9%), Klebsiella (20.0%), Proteiniclasticum (6.7%), Enterobacteriaceae (6.6%), Desulfovibrio (4.4%), Porphyromonadaceae (4.1%), Comamonas (2.4%) and Sedimentibacter (2.3%). By comparison to the inoculum sediment sludge, exposure to uranium caused a substantial difference in the majority of bacterial abundance.
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Affiliation(s)
- Taotao Zeng
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, China.
| | - Guanhai Mo
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, China
| | - Qing Hu
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, China
| | - Guohua Wang
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, China
| | - Wei Liao
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, China
| | - Shuibo Xie
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, China; Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
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17
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An aptasensor strip-based colorimetric determination method for kanamycin using cellulose acetate nanofibers decorated DNA-gold nanoparticle bioconjugates. Mikrochim Acta 2020; 187:360. [PMID: 32468208 DOI: 10.1007/s00604-020-04348-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 05/18/2020] [Indexed: 12/20/2022]
Abstract
The preparation of portable colorimetric biosensor strips is described by combining aptamer-immobilized electrospun nanofiber membranes (A-NFMs) with signal probes (DNA-conjugated gold nanoparticles (AuNPs)) for determination of kanamycin (KMC) as a model analyte. The A-NFMs were decorated with complementary single-stranded DNA (cDNA) of KMC aptamer-conjugated AuNPs (cDNA@Au) to get the colorimetric biosensor strips. The constructed biosensor strips showed a significant absorbance decreasing band at 510 nm which induce a visual color change from pink to white when exposed to KMC, with a low detection limit of 2.5 nM (at S/N = 3). The effect is due to disassembling of cDNA@Au from NFMs in the presence of KMC because the aptamer has a higher affinity to KMC than its complementary DNA, which resulted in replacing cDNA@Au with KMC. Satisfactory performance was observed in real sample (drinking water and milk) analysis with a recovery of 98.9-102.2%. The constructed colorimetric biosensor test strips hold great application promise for food safety control. Graphical abstract Schematic representation of biosensor strips for kanamycin detection prepared with the cDNA@Au immobilized aptamer-based cellulose acetate nanofibers.
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18
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Zhang C, Li H, Yu Q, Jia L, Wan LY. Poly(aspartic acid) Electrospun Nanofiber Hydrogel Membrane-Based Reusable Colorimetric Sensor for Cu(II) and Fe(III) Detection. ACS OMEGA 2019; 4:14633-14639. [PMID: 31528819 PMCID: PMC6740173 DOI: 10.1021/acsomega.9b02109] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 08/15/2019] [Indexed: 05/04/2023]
Abstract
Electrospun nanofiber membrane (ENM) with huge specific surface area is an ideal solid substrate for sensors. However, only a few ENMs are developed into colorimetric sensors and it is even more challenging to fabricate multiple-ion-responsive ENM-based colorimetric sensor. In this study, benefiting from the excellent metal ion adsorption ability of poly(aspartic acid) (PASP) and high specific surface area of nanofibers, a reusable colorimetric sensor utilizing PASP electrospun nanofiber hydrogel membrane (ENHM) was designed to detect Cu2+ and Fe3+ in aqueous solution with simple filtration. The sensor based on PASP-ENHM exhibited high sensitivity and selectivity, and colorimetric responses for Cu2+ and Fe3+ detection could be observed by the naked eye. Upon exposure to Cu2+ aqueous solution, the color of the sensor changed from white to blue with a naked eye detection limit of 0.3 mg/L, while it turned from white to yellow with a detection limit of 0.1 mg/L for Fe3+ detection. Furthermore, this sensor was reusable after metal ion extraction by the desorption process.
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Affiliation(s)
- Caidan Zhang
- Key
Laboratory of Yarn Materials Forming and Composite Processing Technology
of Zhejiang Province, College of Materials and Textile Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Haidong Li
- Key
Laboratory of Yarn Materials Forming and Composite Processing Technology
of Zhejiang Province, College of Materials and Textile Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Qiaozhen Yu
- Key
Laboratory of Yarn Materials Forming and Composite Processing Technology
of Zhejiang Province, College of Materials and Textile Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Lin Jia
- College
of Textile, Henan University of Engineering, Zhengzhou, Henan 450007, China
| | - Lynn Yuqin Wan
- Advanced
Fibrous Material Laboratory, Advanced Materials and Process Engineering
Laboratory, University of British Columbia, Vancouver V6T 1Z4, Canada
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19
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20
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Ultra-sensitive detection of uranyl ions with a specially designed high-efficiency SERS-based microfluidic device. Sci China Chem 2019. [DOI: 10.1007/s11426-019-9468-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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He W, Hua D. Spectrographic sensors for uranyl detection in the environment. Talanta 2019; 201:317-329. [PMID: 31122429 DOI: 10.1016/j.talanta.2019.04.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 04/04/2019] [Accepted: 04/07/2019] [Indexed: 02/06/2023]
Abstract
More and more severe energy problem triggers extensive application of nuclear energy, and the adverse effects brought by nuclear materials such as uranyl to the environment are becoming the concern, as it has become a threat to human's health. Therefore, the detection of uranyl is increasingly important, which aims to make the application of uranium under surveillance and protection. A lot of detection methods employing varying materials based on different techniques for uranyl have been proposed including those using expensive and complicated instruments such as ICP-MS, ESI-MS, and neutron activation analysis etc. Those methods based on expensive instruments often provide quite low limit of detection (LOD) and excellent validity and repeatability, however, methods that are low-cost, convenient and rapid are in demand because these are satisfied characters for on-site and in-time determination. In the review, we discuss uranyl sensors based on spectrographic techniques, which is facile and promising for rapid assessment of uranium content in practical application. Spectrographic techniques including fluorescence, UV-vis spectrophotometry, resonance light scattering (RLS) and surface enhanced Raman scattering (SERS) are evaluated. In detail, the core materials that playing extremely important roles in detection performance are stated consisting of small molecule, biomolecule, polymer and nanomaterial.
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Affiliation(s)
- Weiwei He
- State Key Laboratory of Radiation Medicine and Protection, School of Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, 215123, China; Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, China
| | - Daoben Hua
- State Key Laboratory of Radiation Medicine and Protection, School of Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, 215123, China; Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, China.
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22
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Wang S, Yang S, Wu H, Jiang J, Shao L, Ren Y, Li Y, Liang C, Chu M, Wang X. The contribution of photoinduced charge-transfer enhancement to the SERS of uranyl(VI) in a uranyl-Ag 2O complex. Sci Bull (Beijing) 2019; 64:315-320. [PMID: 36659595 DOI: 10.1016/j.scib.2019.01.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/09/2019] [Accepted: 01/28/2019] [Indexed: 01/21/2023]
Abstract
Charge-transfer (CT) is an important enhancement mechanism in the field of surface-enhanced Raman scattering (SERS) that typically increases the Raman intensity of molecules by as much as 10-100 times. Herein, a low-cost Ag2O aggregates substrate was prepared via a facile chemical precipitation method, and the calculated CT-based enhancement factor of the uranyl ions adsorbed on it reached as high as 105, a metal-comparable value. The efficient photoinduced CT process from the valence band of Ag2O to the LUMO of uranyl ions under appropriate excitation sources resulted in the repulsion of the axial oxygen atoms of the OUO bond, which enhanced its polarizability, creating a more intense Raman mode. To the best of our knowledge, this study firstly reports such a strong photoinduced CT enhancement of uranyl ions, with concentrations of 10-8 mol L-1 or lower being detected using this Ag2O substrate. Most importantly, this research has shown that the photoinduced CT enhancement also contributes to the SERS of uranyl ions on pure Ag substrates which have often been ascribed to the electromagnetic enhancement in previous studies. In addition, Ag2O can be used to selectively detect uranyl ions without interference from many other molecules or ions because of the energy matching rule of the photoinduced CT process, which was readily available for uranyl detection in the environmental aqueous solution.
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Affiliation(s)
- Shaofei Wang
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Shanli Yang
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Haoxi Wu
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Jiaolai Jiang
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Lang Shao
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Yiming Ren
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Yingru Li
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Chuanhui Liang
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Mingfu Chu
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Xiaolin Wang
- China Academy of Engineering Physics, Mianyang 621900, China.
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23
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Bustamante SE, Vallejos S, Pascual-Portal BS, Muñoz A, Mendia A, Rivas BL, García FC, García JM. Polymer films containing chemically anchored diazonium salts with long-term stability as colorimetric sensors. JOURNAL OF HAZARDOUS MATERIALS 2019; 365:725-732. [PMID: 30472458 DOI: 10.1016/j.jhazmat.2018.11.066] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 11/05/2018] [Accepted: 11/15/2018] [Indexed: 05/03/2023]
Abstract
We have prepared polymeric films as easy-to-handle sensory materials for the colorimetric detection and quantification of phenol derivatives (phenols) in water. Phenols in water resources result from their presence in pesticides and fungicides, among other goods, and are harmful ecotoxins. Colorless polymeric films with pendant diazonium groups attached to the acrylic polymer structure were designed and prepared for use as sensory matrices to detect phenol-derived species in water. Upon dipping the sensory films into aqueous media, the material swells, and if phenols are present, they react with the diazonium groups of the polymer to render a highly colored azo group, giving rise to the recognition phenomenon. The color development can be visually followed for a qualitative determination of phenols. Additionally, quantitative analysis can be performed by two different techniques: a) by using a UV-vis spectrophotometer (limit of detection of 0.12 ppm for 2-phenylphenol) and/or b) by using a smartphone with subsequent RGB analysis (limit of detection of 30 ppb for 2-phenylphenol).
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Affiliation(s)
- Saúl E Bustamante
- Polymer Department, Faculty of Chemistry, University of Concepción, Casilla 160-C, Concepción, Chile
| | - Saúl Vallejos
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001, Burgos, Spain.
| | - Blanca Sol Pascual-Portal
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Asunción Muñoz
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Aránzazu Mendia
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Bernabé L Rivas
- Polymer Department, Faculty of Chemistry, University of Concepción, Casilla 160-C, Concepción, Chile.
| | - Félix C García
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001, Burgos, Spain
| | - José M García
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001, Burgos, Spain.
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24
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Li Y, Mohammed A, Li D, Wang L. Test strips based on iron(iii)-impregnated alginate/polyacrylonitrile nanofibers for naked eye screening of tetracycline. Analyst 2019; 143:3029-3039. [PMID: 29721556 DOI: 10.1039/c7an02038d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tetracycline (TC) is an inexpensive broad-spectrum antibiotic used to treat infectious diseases and to promote growth in animals. However, driven by economic interest, abuse of TC poses a serious threat to human beings, and it remains a significant challenge to create easy-to-use TC colorimetric test strips for public use. Herein, we present a strategy to prepare free-standing, nanofibrous structured test strips with tortuous porous structure and large surface area by combining polyacrylonitrile nanofibrous membranes (PAN NMs), alginate, and Fe3+. In this approach, alginate was first functionalized on the PAN NMs and then, Fe3+ was assembled into the alginate to construct a TC-sensing surface. The resultant test strips exhibited the following integrated properties: fast sensing process (10 min), low naked eye detection limit (5 μg kg-1), excellent anti-interference ability, and satisfactory reusability. Furthermore, the TC concentration-dependent color change (yellow to maroon) was quantitatively visualized by an iPhone read-out hue parameter. All the findings indicate that this intriguing approach may pave the way for versatile designing of NMs to serve as a preventive treatment for the public.
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Affiliation(s)
- Yan Li
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.
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25
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Zeng T, Zhang S, Gao X, Wang G, Lens PNL, Xie S. Assessment of Bacterial Community Composition of Anaerobic Granular Sludge in Response to Short-Term Uranium Exposure. MICROBIAL ECOLOGY 2018; 76:648-659. [PMID: 29417188 DOI: 10.1007/s00248-018-1152-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 01/23/2018] [Indexed: 06/08/2023]
Abstract
The effect of 10-50 μM uranium (U(VI)) on the bacterial community of anaerobic granular sludge was investigated by 24-h exposure tests, after which the bacterial community was analyzed by high-throughput sequencing. The specific U(VI) reducing activity of the anaerobic granular sludge ranged between 3.1 to 19.7 μM U(VI) g-1(VSS) h-1, independently of the initial U(VI) concentration. Alpha diversity revealed that microbial richness and diversity was the highest for anaerobic granular sludge upon 10 μM uranium exposure. Compared with the original biomass, the phylum of Euryarchaeota was significantly affected, whereas the Bacteroidetes, Firmicutes, and Synergistetes phyla were only slightly affected. However, the abundance of Chloroflexi and Proteobacteria phyla clearly increased after 24 h uranium exposure. Based on the genus level analysis, significant differences appeared in the bacterial abundance after uranium exposure. The proportions of Pseudomonas, Acinetobacter, Parabacteroides, Brevundimonas, Sulfurovum, and Trichococcus increased significantly, while the abundance of Paludibacter and Erysipelotrichaceae incertae sedis decreased dramatically. This study shows a dynamic diversification of the bacterial composition as a response to a short time (24 h) U(VI) exposure (10-50 μM).
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Affiliation(s)
- Taotao Zeng
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, People's Republic of China.
- UNESCO-IHE Institute for Water Education, Delft, The Netherlands.
| | - Shiqi Zhang
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, People's Republic of China
| | - Xiang Gao
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, People's Republic of China
| | - Guohua Wang
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, People's Republic of China
| | - Piet N L Lens
- UNESCO-IHE Institute for Water Education, Delft, The Netherlands
| | - Shuibo Xie
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, People's Republic of China
- Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, People's Republic of China
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26
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Khamirchi R, Hosseini-Bandegharaei A, Alahabadi A, Sivamani S, Rahmani-Sani A, Shahryari T, Anastopoulos I, Miri M, Tran HN. Adsorption property of Br-PADAP-impregnated multiwall carbon nanotubes towards uranium and its performance in the selective separation and determination of uranium in different environmental samples. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 150:136-143. [PMID: 29272718 DOI: 10.1016/j.ecoenv.2017.12.039] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 12/13/2017] [Accepted: 12/15/2017] [Indexed: 06/07/2023]
Abstract
A newer efficient U(VI) ion adsorbent was synthesized by impregnating Br-PADAP [2-(5-Bromo-2-pyridylazo)-5-(diethylamino)phenol] onto multiwall carbon nanotubes (MWCNTs). The effects of various operation conditions on uranium adsorption (i.e., pH contact time, temperature, and initial uranium concentration) were systematically evaluated using batch experiments. The results indicated that the uranium adsorption on modified MWNCTs (5.571 × 10-3g/mg × min) reached faster equilibrium than that on pristine MWNCTs (4.832 × 10-3g/mg × min), reflecting the involvement of appropriate functional groups of Br-PADAP on the chelating ion-exchange mechanism of U(VI) adsorption. Modified MWNCTs (83.4mg/g) exhibited significantly higher maximum Langmuir adsorption capacity than pristine MWNCTs (15.1mg/g). Approximately 99% of uranium adsorbed onto modified MWNCTs can be desorbed by 2.5mL of 1M HNO3 solution. Therefore, Br-PADAP-modified MWNCTs can server as a promising adsorbent for efficient uranium adsorption applications in water treatment. Subsequently, the proposed solid-phase extraction (using a mini-column packed with Br-PADAP/MWCNT) was successfully utilized for analysing trace uranium levels by the ICP-AES method in different environmental samples with a pre-concentration factor of 300-fold. The coexistence of other ions demonstrated an insignificant interference on the separative pre-concentration of uranium. the detection limit was recognized as 0.14μg/L, and the relative standard deviation was approximately 3.3% (n = 7).
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Affiliation(s)
- Ramzanali Khamirchi
- Wastewater Division, Faculty of Health, Sabzevar University of Medical Sciences, PO Box 319, Sabzevar, Iran
| | - Ahmad Hosseini-Bandegharaei
- Wastewater Division, Faculty of Health, Sabzevar University of Medical Sciences, PO Box 319, Sabzevar, Iran; Department of Engineering, Kashmar Branch, Islamic Azad University, PO Box 161, Kashmar, Iran.
| | - Ahmad Alahabadi
- Wastewater Division, Faculty of Health, Sabzevar University of Medical Sciences, PO Box 319, Sabzevar, Iran
| | - Selvaraju Sivamani
- Chemical and Petrochemical Engineering Section, Engineering Department, Salalah College of Technology, Oman
| | - Abolfazl Rahmani-Sani
- Wastewater Division, Faculty of Health, Sabzevar University of Medical Sciences, PO Box 319, Sabzevar, Iran
| | - Taher Shahryari
- Wastewater Division, Faculty of Health, Birjand University of Medical Sciences, Birjand, Iran; Social Determinants of Health Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Ioannis Anastopoulos
- Department of Agrobiotechnology, Agricultural Research Institute, P.O. Box 22016, CY-1516 Nicosia, Cyprus
| | - Mohammad Miri
- Wastewater Division, Faculty of Health, Sabzevar University of Medical Sciences, PO Box 319, Sabzevar, Iran
| | - Hai Nguyen Tran
- Sustainable Management of Natural Resources and Environment Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
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