1
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He Q, Sheng B, Zhu K, Zhou Y, Qiao S, Wang Z, Song L. Phase Engineering and Synchrotron-Based Study on Two-Dimensional Energy Nanomaterials. Chem Rev 2023; 123:10750-10807. [PMID: 37581572 DOI: 10.1021/acs.chemrev.3c00389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
In recent years, there has been significant interest in the development of two-dimensional (2D) nanomaterials with unique physicochemical properties for various energy applications. These properties are often derived from the phase structures established through a range of physical and chemical design strategies. A concrete analysis of the phase structures and real reaction mechanisms of 2D energy nanomaterials requires advanced characterization methods that offer valuable information as much as possible. Here, we present a comprehensive review on the phase engineering of typical 2D nanomaterials with the focus of synchrotron radiation characterizations. In particular, the intrinsic defects, atomic doping, intercalation, and heterogeneous interfaces on 2D nanomaterials are introduced, together with their applications in energy-related fields. Among them, synchrotron-based multiple spectroscopic techniques are emphasized to reveal their intrinsic phases and structures. More importantly, various in situ methods are employed to provide deep insights into their structural evolutions under working conditions or reaction processes of 2D energy nanomaterials. Finally, conclusions and research perspectives on the future outlook for the further development of 2D energy nanomaterials and synchrotron radiation light sources and integrated techniques are discussed.
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Affiliation(s)
- Qun He
- National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Beibei Sheng
- National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Kefu Zhu
- National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Yuzhu Zhou
- National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Sicong Qiao
- National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Zhouxin Wang
- National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Li Song
- National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui 230029, China
- Zhejiang Institute of Photonelectronics, Jinhua, Zhejiang 321004, China
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2
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Uno K, Itoh T, Sato H, Lloyd-Jones GC, Orito Y. Direct Observation of Palladium Leaching from Pd/C by a Simple Method: X-ray Absorption Spectroscopy of Heterogeneous Mixtures. ACS OMEGA 2023; 8:21787-21792. [PMID: 37360423 PMCID: PMC10286095 DOI: 10.1021/acsomega.3c01343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/29/2023] [Indexed: 06/28/2023]
Abstract
Herein, we show the detailed behavior of palladium leaching from palladium on charcoal by aqueous HCl, directly observed by X-ray absorption spectroscopy measurement employing a simplified reaction setup. While Pd0 is not affected by the addition of HCl, palladium oxide in nanoparticles readily reacts with HCl to form the ionic species [PdIICl4]2-, even though these ions mostly remain adsorbed on the surface of activated charcoal and can only be detected at a low level in the solution phase. This finding provides a new aspect for control of the leaching behavior and robust usage of palladium on charcoal in organic reactions.
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Affiliation(s)
- Kenichi Uno
- Process
Technology Research Laboratories, Daiichi
Sankyo Co., Ltd., 1-12-1
Shinomiya, Hiratsuka, Kanagawa 254-0014, Japan
| | - Takanori Itoh
- Physical
Properties & Chemical Analysis Department, NISSAN ARC, LTD., 1,
Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Hidenori Sato
- Physical
Properties & Chemical Analysis Department, NISSAN ARC, LTD., 1,
Natsushima-cho, Yokosuka, Kanagawa 237-0061, Japan
| | - Guy C. Lloyd-Jones
- School
of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh EH9 1FJ, U.K.
| | - Yuya Orito
- Process
Technology Research Laboratories, Daiichi
Sankyo Co., Ltd., 1-12-1
Shinomiya, Hiratsuka, Kanagawa 254-0014, Japan
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3
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Mester D, Kállay M. Double-Hybrid Density Functional Theory for Core Excitations: Theory and Benchmark Calculations. J Chem Theory Comput 2023; 19:1310-1321. [PMID: 36721871 PMCID: PMC9979613 DOI: 10.1021/acs.jctc.2c01222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The double-hybrid (DH) time-dependent density functional theory is extended to core excitations. Two different DH formalisms are presented utilizing the core-valence separation (CVS) approximation. First, a CVS-DH variant is introduced relying on the genuine perturbative second-order correction, while an iterative analogue is also presented using our second-order algebraic-diagrammatic construction [ADC(2)]-based DH ansatz. The performance of the new approaches is tested for the most popular DH functionals using the recently proposed XABOOM [J. Chem. Theory Comput.2021, 17, 1618] benchmark set. In order to make a careful comparison, the accuracy and precision of the methods are also inspected. Our results show that the genuine approaches are highly competitive with the more advanced CVS-ADC(2)-based methods if only excitation energies are required. In contrast, as expected, significant differences are observed in oscillator strengths; however, the precision is acceptable for the genuine functionals as well. Concerning the performance of the CVS-DH approaches, the PBE0-2/CVS-ADC(2) functional is superior, while its spin-opposite-scaled variant is also recommended as a cost-effective alternative. For these approaches, significant improvements are realized in the error measures compared with the popular CVS-ADC(2) method.
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Affiliation(s)
- Dávid Mester
- Department
of Physical Chemistry and Materials Science, Faculty of Chemical Technology
and Biotechnology, Budapest University of
Technology and Economics, Müegyetem rkp. 3, H-1111Budapest, Hungary,ELKH-BME
Quantum Chemistry Research Group, Müegyetem rkp. 3, H-1111Budapest, Hungary,MTA-BME
Lendület Quantum Chemistry Research Group, Müegyetem rkp. 3, H-1111Budapest, Hungary,
| | - Mihály Kállay
- Department
of Physical Chemistry and Materials Science, Faculty of Chemical Technology
and Biotechnology, Budapest University of
Technology and Economics, Müegyetem rkp. 3, H-1111Budapest, Hungary,ELKH-BME
Quantum Chemistry Research Group, Müegyetem rkp. 3, H-1111Budapest, Hungary,MTA-BME
Lendület Quantum Chemistry Research Group, Müegyetem rkp. 3, H-1111Budapest, Hungary,
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4
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Li X, Liu T, Chang C, Lei Y, Mao X. Analytical Methodologies for Agrometallomics: A Critical Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:6100-6118. [PMID: 34048228 DOI: 10.1021/acs.jafc.1c00275] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Agrometallomics, as an independent interdiscipline, is first defined and described in this review. Metallic elements widely exist in agricultural plants, animals and edible fungi, seed, fertilizer, pesticide, feedstuff, as well as the agricultural environment and ecology, and even functional and pathogenic microorganisms. So, the agrometallome plays a vital role in molecular and organismic mechanisms like environmetallomics, metabolomics, proteomics, lipidomics, glycomics, immunomics, genomics, etc. To further reveal the inner and mutual mechanism of the agrometallome, comprehensive and systematic methodologies for the analysis of beneficial and toxic metals are indispensable to investigate elemental existence, concentration, distribution, speciation, and forms in agricultural lives and media. Based on agrometallomics, this review summarizes and discusses the advanced technical progress and future perspectives of metallic analytical approaches, which are categorized into ultrasensitive and high-throughput analysis, elemental speciation and state analysis, and spatial- and microanalysis. Furthermore, the progress of agrometallomic innovativeness greatly depends on the innovative development of modern metallic analysis approaches including, but not limited to, high sensitivity, elemental coverage, and anti-interference; high-resolution isotopic analysis; solid sampling and nondestructive analysis; metal chemical species and metal forms, associated molecular clusters, and macromolecular complexes analysis; and metal-related particles or metal within the microsize and even single cell or subcellular analysis.
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Affiliation(s)
- Xue Li
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Tengpeng Liu
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Chunyan Chang
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Yajie Lei
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Xuefei Mao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
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5
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Arsenic Content, Speciation, and Distribution in Wild Cordyceps sinensis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6651498. [PMID: 33680057 PMCID: PMC7910042 DOI: 10.1155/2021/6651498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/21/2021] [Accepted: 02/01/2021] [Indexed: 12/05/2022]
Abstract
The excessive arsenic content in wild Cordyceps sinensis has caused great concerns on human health. The toxicity of arsenic depends on its concentration, chemical form, and valence. The source studies of arsenic in C. sinensis are essential for safety evolution and quality control. We used ICP-MS and HPLC-ICP-MS methods to determine the total arsenic amount and the arsenic speciation. Synchrotron-based XANES and micro-XRF imaging techniques were used to characterize arsenic valence and distribution. The total arsenic amount range in wild C. sinensis samples was 5.77–13.20 μg/g with an average of 8.85 ± 2.5 μg/g. As(III) and As(V) were the main species in wild C. sinensis samples. The iAs only accounts for 4.47–11.42% of the extracted arsenic. Trivalent and pentavalent forms were the dominant chemical forms of arsenic. Besides, we found that arsenic was accumulated at the digestive tract of the host larva.
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Alves EEN, Ortega Rodriguez DR, Rocha PDA, Vergütz L, Santini Junior L, Hesterberg D, Pessenda LCR, Tomazello-Filho M, Costa LMD. Synchrotron-based X-ray microscopy for assessing elements distribution and speciation in mangrove tree-rings. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100121] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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7
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Mdlovu NV, Lin KS, Hsien MJ, Chang CJ, Kunene SC. Synthesis, characterization, and application of zero-valent iron nanoparticles for TNT, RDX, and HMX explosives decontamination in wastewater. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.08.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Cohen SX, Webb SM, Gueriau P, Curis E, Bertrand L. Robust framework and software implementation for fast speciation mapping. JOURNAL OF SYNCHROTRON RADIATION 2020; 27:1049-1058. [PMID: 33566015 DOI: 10.1107/s1600577520005822] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 04/27/2020] [Indexed: 06/12/2023]
Abstract
One of the greatest benefits of synchrotron radiation is the ability to perform chemical speciation analysis through X-ray absorption spectroscopies (XAS). XAS imaging of large sample areas can be performed with either full-field or raster-scanning modalities. A common practice to reduce acquisition time while decreasing dose and/or increasing spatial resolution is to compare X-ray fluorescence images collected at a few diagnostic energies. Several authors have used different multivariate data processing strategies to establish speciation maps. In this manuscript, the theoretical aspects and assumptions that are often made in the analysis of these datasets are focused on. A robust framework is developed to perform speciation mapping in large bulk samples at high spatial resolution by comparison with known references. Two fully operational software implementations are provided: a user-friendly implementation within the MicroAnalysis Toolkit software, and a dedicated script developed under the R environment. The procedure is exemplified through the study of a cross section of a typical fossil specimen. The algorithm provides accurate speciation and concentration mapping while decreasing the data collection time by typically two or three orders of magnitude compared with the collection of whole spectra at each pixel. Whereas acquisition of spectral datacubes on large areas leads to very high irradiation times and doses, which can considerably lengthen experiments and generate significant alteration of radiation-sensitive materials, this sparse excitation energy procedure brings the total irradiation dose greatly below radiation damage thresholds identified in previous studies. This approach is particularly adapted to the chemical study of heterogeneous radiation-sensitive samples encountered in environmental, material, and life sciences.
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Affiliation(s)
- Serge X Cohen
- Université Paris-Saclay, CNRS, Ministère de la Culture, UVSQ, IPANEMA, F-91192 Saint-Aubin, France
| | - Samuel M Webb
- Stanford Radiation Lightsource (SSRL), SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Pierre Gueriau
- Université Paris-Saclay, CNRS, Ministère de la Culture, UVSQ, IPANEMA, F-91192 Saint-Aubin, France
| | - Emmanuel Curis
- Laboratoire de Biomathématiques, EA 7537 - BioSTM, Faculté de Pharmacie de Paris - Université Paris Descartes, 4 Avenue de l'Observatoire, F-75006 Paris, France
| | - Loïc Bertrand
- Université Paris-Saclay, CNRS, Ministère de la Culture, UVSQ, IPANEMA, F-91192 Saint-Aubin, France
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9
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Mdlovu NV, Lin KS, Chen ZW, Liu YJ, Mdlovu NB. Treatment of simulated chromium-contaminated wastewater using polyethylenimine-modified zero-valent iron nanoparticles. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2019.12.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Guo X, Situm A, Barlow BC, Guo B, Burgess IJ, Grosvenor AP. Soft X‐ray spectromicroscopy studies of pitting corrosion of reinforcing steel bar. SURF INTERFACE ANAL 2019. [DOI: 10.1002/sia.6640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaoxuan Guo
- Department of ChemistryUniversity of Saskatchewan Saskatoon SK Canada S7N 5C9
| | - Arthur Situm
- Department of ChemistryUniversity of Saskatchewan Saskatoon SK Canada S7N 5C9
| | - Burke C. Barlow
- Department of ChemistryUniversity of Saskatchewan Saskatoon SK Canada S7N 5C9
| | - Bao Guo
- Department of ChemistryUniversity of Saskatchewan Saskatoon SK Canada S7N 5C9
| | - Ian J. Burgess
- Department of ChemistryUniversity of Saskatchewan Saskatoon SK Canada S7N 5C9
| | - Andrew P. Grosvenor
- Department of ChemistryUniversity of Saskatchewan Saskatoon SK Canada S7N 5C9
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11
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Liu P, Ptacek CJ, Blowes DW, Finfrock YZ, Steinepreis M, Budimir F. A Method for Redox Mapping by Confocal Micro-X-ray Fluorescence Imaging: Using Chromium Species in a Biochar Particle as an Example. Anal Chem 2019; 91:5142-5149. [DOI: 10.1021/acs.analchem.8b05718] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Peng Liu
- School of Environmental Studies, China University of Geosciences, 388 Lumo Rd., Wuhan, Hubei 430074, People’s Republic of China
- Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. W., Waterloo, ON N2L 3G1, Canada
| | - Carol J. Ptacek
- Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. W., Waterloo, ON N2L 3G1, Canada
| | - David W. Blowes
- Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. W., Waterloo, ON N2L 3G1, Canada
| | - Y. Zou Finfrock
- CLS@APS sector 20, Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
- Science Division,
Canadian Light Source, Inc., 44 Innovation Boulevard, Saskatoon, SK S7N 2 V3, Canada
| | - Mark Steinepreis
- Stantec Consulting,
Ltd., 100-300 Hagey Blvd., Waterloo, ON N2L 0A4, Canada
| | - Filip Budimir
- Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. W., Waterloo, ON N2L 3G1, Canada
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12
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Fossilised Biomolecules and Biomarkers in Carbonate Concretions from Konservat-Lagerstätten. MINERALS 2019. [DOI: 10.3390/min9030158] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In the vast majority of fossils, the organic matter is degraded with only an impression or cast of the organism remaining. In rare cases, ideal burial conditions result in a rapid fossilisation with an exceptional preservation of soft tissues and occasionally organic matter. Such deposits are known as Lagerstätten and have been found throughout the geological record. Exceptional preservation is often associated with finely crystalline quartz (e.g., cherts), fine sediments (e.g., muds) or volcanic ashes. Other mechanisms include burial in anoxic/euxinic sediments and in the absence of turbidity or scavenging. Exceptional preservation can also occur when an organism is encapsulated in carbonate cement, forming a concretion. This mechanism involves complex microbial processes, resulting in a supersaturation in carbonate, with microbial sulfate reduction and methane cycling the most commonly suggested processes. In addition, conditions of photic zone euxinia are often found to occur during concretion formation in marine environments. Concretions are ideal for the study of ancient and long-extinct organisms, through both imaging techniques and biomolecular approaches. These studies have provided valuable insights into the evolution of organisms and their environments through the Phanerozoic and have contributed to increasing interest in fields including chemotaxonomy, palaeobiology, palaeoecology and palaeophysiology.
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13
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Tip-enhanced Raman spectroscopy: principles, practice, and applications to nanospectroscopic imaging of 2D materials. Anal Bioanal Chem 2018; 411:37-61. [DOI: 10.1007/s00216-018-1392-0] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 09/18/2018] [Accepted: 09/19/2018] [Indexed: 10/28/2022]
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14
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Ratnesh RK, Mehata MS. Tunable single and double emission semiconductor nanocrystal quantum dots: a multianalyte sensor. Methods Appl Fluoresc 2018; 6:035006. [DOI: 10.1088/2050-6120/aaba8a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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15
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Ansari Z, Singha SS, Saha A, Sen K. Hassle free synthesis of nanodimensional Ni, Cu and Zn sulfides for spectral sensing of Hg, Cd and Pb: A comparative study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 176:67-78. [PMID: 28081492 DOI: 10.1016/j.saa.2017.01.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 12/23/2016] [Accepted: 01/02/2017] [Indexed: 06/06/2023]
Abstract
A simple room temperature synthesis method of Ni, Cu and Zn sulfide nanoparticles (NPs) in aqueous medium is reported here. The NPs stabilized in aqueous medium by the citrate ions were characterized by UV-vis, ζ potentials, TEM and Raman spectroscopic techniques. The solid NPs could be isolated from the aqueous medium when allowed to stand for a prolonged time (~20h). The solids were also characterized by IR and powder X-ray analysis. The nanoparticles were further used for the development of facile optical sensing and detection of heavy metal ions at trace scale. Alterations in the absorption spectra of the generated NPs were indicative of their interactions with heavy metal ions. Raman spectral measurements further validate the detection technique. It is found that out of the three synthesized nanoparticles, nickel sulfide NP is a specific sensor for mercury ions whereas zinc sulfide and copper sulfide NPs act as sensors for Hg2+, Cd2+ and Pb2+.
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Affiliation(s)
- Zarina Ansari
- Department of Chemistry, University of Calcutta, 92, APC Road, Kolkata 700009, India
| | - Shib Shankar Singha
- Department of Physics, Brahmananda Keshab Chandra College, 111/2 B. T. Road, Bon Hooghly, Kolkata 700 108, India
| | - Abhijit Saha
- UGC-DAE Consortium for Scientific Research, Kolkata Centre, III/LB-8, Bidhannagar, Kolkata 700098, India
| | - Kamalika Sen
- Department of Chemistry, University of Calcutta, 92, APC Road, Kolkata 700009, India.
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16
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Enhanced Cr(VI) removal by zero-valent iron coupled with weak magnetic field: Role of magnetic gradient force. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.11.075] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Wei X, Hu LL, Chen ML, Yang T, Wang JH. Analysis of the Distribution Pattern of Chromium Species in Single Cells. Anal Chem 2016; 88:12437-12444. [DOI: 10.1021/acs.analchem.6b03810] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Xing Wei
- Research Center for Analytical
Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Lin-Lin Hu
- Research Center for Analytical
Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Ming-Li Chen
- Research Center for Analytical
Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Ting Yang
- Research Center for Analytical
Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Jian-Hua Wang
- Research Center for Analytical
Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
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18
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Williams ST, Ito S, Wakamatsu K, Goral T, Edwards NP, Wogelius RA, Henkel T, de Oliveira LFC, Maia LF, Strekopytov S, Jeffries T, Speiser DI, Marsden JT. Identification of Shell Colour Pigments in Marine Snails Clanculus pharaonius and C. margaritarius (Trochoidea; Gastropoda). PLoS One 2016; 11:e0156664. [PMID: 27367426 PMCID: PMC4930200 DOI: 10.1371/journal.pone.0156664] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 05/17/2016] [Indexed: 12/26/2022] Open
Abstract
Colour and pattern are key traits with important roles in camouflage, warning and attraction. Ideally, in order to begin to understand the evolution and ecology of colour in nature, it is important to identify and, where possible, fully characterise pigments using biochemical methods. The phylum Mollusca includes some of the most beautiful exemplars of biological pigmentation, with the vivid colours of sea shells particularly prized by collectors and scientists alike. Biochemical studies of molluscan shell colour were fairly common in the last century, but few of these studies have been confirmed using modern methods and very few shell pigments have been fully characterised. Here, we use modern chemical and multi-modal spectroscopic techniques to identify two porphyrin pigments and eumelanin in the shell of marine snails Clanculus pharaonius and C margaritarius. The same porphyrins were also identified in coloured foot tissue of both species. We use high performance liquid chromatography (HPLC) to show definitively that these porphyrins are uroporphyrin I and uroporphyrin III. Evidence from confocal microscopy analyses shows that the distribution of porphyrin pigments corresponds to the striking pink-red of C. pharaonius shells, as well as pink-red dots and lines on the early whorls of C. margaritarius and yellow-brown colour of later whorls. Additional HPLC results suggest that eumelanin is likely responsible for black spots. We refer to the two differently coloured porphyrin pigments as trochopuniceus (pink-red) and trochoxouthos (yellow-brown) in order to distinguish between them. Trochopuniceus and trochoxouthos were not found in the shell of a third species of the same superfamily, Calliostoma zizyphinum, despite its superficially similar colouration, suggesting that this species has different shell pigments. These findings have important implications for the study of colour and pattern in molluscs specifically, but in other taxa more generally, since this study shows that homology of visible colour cannot be assumed without identification of pigments.
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Affiliation(s)
- S. T. Williams
- Natural History Museum, Department of Life Sciences, London, United Kingdom
- * E-mail:
| | - S. Ito
- Department of Chemistry, Fujita Health University School of Health Sciences, 1–98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, Japan
| | - K. Wakamatsu
- Department of Chemistry, Fujita Health University School of Health Sciences, 1–98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, Japan
| | - T. Goral
- Natural History Museum, Imaging and Analysis Centre, London, United Kingdom
| | - N. P. Edwards
- School of Earth, Atmospheric, and Environmental Sciences, University of Manchester, Manchester, United Kingdom
| | - R. A. Wogelius
- School of Earth, Atmospheric, and Environmental Sciences, University of Manchester, Manchester, United Kingdom
| | - T. Henkel
- School of Earth, Atmospheric, and Environmental Sciences, University of Manchester, Manchester, United Kingdom
| | - L. F. C. de Oliveira
- NEEM Núcleo de Espectroscopia e Estrutura Molecular, Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Juiz de Fora, MG, Brazil
| | - L. F. Maia
- NEEM Núcleo de Espectroscopia e Estrutura Molecular, Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Juiz de Fora, MG, Brazil
| | - S. Strekopytov
- Natural History Museum, Imaging and Analysis Centre, London, United Kingdom
| | - T. Jeffries
- Natural History Museum, Imaging and Analysis Centre, London, United Kingdom
| | - D. I. Speiser
- Department of Biological Sciences, University of South Carolina, Columbia, South Carolina, United States of America
| | - J. T. Marsden
- Viapath, Reference Biochemistry Laboratories, King's College Hospital, London, United Kingdom
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Bock DC, Pelliccione CJ, Zhang W, Wang J, Knehr KW, Wang J, Wang F, West AC, Marschilok AC, Takeuchi KJ, Takeuchi ES. Dispersion of Nanocrystalline Fe3O4 within Composite Electrodes: Insights on Battery-Related Electrochemistry. ACS APPLIED MATERIALS & INTERFACES 2016; 8:11418-11430. [PMID: 27096464 DOI: 10.1021/acsami.6b01134] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Aggregation of nanosized materials in composite lithium-ion-battery electrodes can be a significant factor influencing electrochemical behavior. In this study, aggregation was controlled in magnetite, Fe3O4, composite electrodes via oleic acid capping and subsequent dispersion in a carbon black matrix. A heat treatment process was effective in the removal of the oleic acid capping agent while preserving a high degree of Fe3O4 dispersion. Electrochemical testing showed that Fe3O4 dispersion is initially beneficial in delivering a higher functional capacity, in agreement with continuum model simulations. However, increased capacity fade upon extended cycling was observed for the dispersed Fe3O4 composites relative to the aggregated Fe3O4 composites. X-ray absorption spectroscopy measurements of electrodes post cycling indicated that the dispersed Fe3O4 electrodes are more oxidized in the discharged state, consistent with reduced reversibility compared with the aggregated sample. Higher charge-transfer resistance for the dispersed sample after cycling suggests increased surface-film formation on the dispersed, high-surface-area nanocrystalline Fe3O4 compared to the aggregated materials. This study provides insight into the specific effects of aggregation on electrochemistry through a multiscale view of mechanisms for magnetite composite electrodes.
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Affiliation(s)
- David C Bock
- Brookhaven National Laboratory , Upton, New York 11973, United States
| | | | - Wei Zhang
- Brookhaven National Laboratory , Upton, New York 11973, United States
| | - Jiajun Wang
- Brookhaven National Laboratory , Upton, New York 11973, United States
| | - K W Knehr
- Department of Chemical Engineering, Columbia University , New York, New York 10027, United States
| | - Jun Wang
- Brookhaven National Laboratory , Upton, New York 11973, United States
| | - Feng Wang
- Brookhaven National Laboratory , Upton, New York 11973, United States
| | - Alan C West
- Department of Chemical Engineering, Columbia University , New York, New York 10027, United States
| | | | | | - Esther S Takeuchi
- Brookhaven National Laboratory , Upton, New York 11973, United States
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20
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Abe H, Niwa Y, Kimura M, Murakami Y, Yokoyama T, Hosono H. Gritty Surface Sample Holder Invented To Obtain Correct X-ray Absorption Fine Structure Spectra for Concentrated Materials by Fluorescence Yield. Anal Chem 2016; 88:3455-8. [PMID: 26978034 DOI: 10.1021/acs.analchem.5b04686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A gritty surface sample holder has been invented to obtain correct XAFS spectra for concentrated samples by fluorescence yield (FY). Materials are usually mixed with boron nitride (BN) to prepare proper concentrations to measure XAFS spectra. Some materials, however, could not be mixed with BN and would be measured in too concentrated conditions to obtain correct XAFS spectra. Consequently, XAFS spectra will be incorrect typically with decreased intensities of the peaks. We have invented the gritty surface sample holders to obtain correct XAFS spectra even for concentrated materials for FY measurements. Pure Cu and CuO powders were measured mounted on the sample holders, and the same spectra were obtained as transmission spectra of properly prepared samples. This sample holder is useful to measure XAFS for any concentrated materials.
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Affiliation(s)
- Hitoshi Abe
- Institute of Materials Structure Science, High Energy Accelerator Research Organization , 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan.,Department of Materials Structure Science, School of High Energy Accelerator Science, SOKENDAI (the Graduate University for Advanced Studies) , 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan.,ACCEL, Japan Science and Technology Agency , 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Yasuhiro Niwa
- Institute of Materials Structure Science, High Energy Accelerator Research Organization , 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Masao Kimura
- Institute of Materials Structure Science, High Energy Accelerator Research Organization , 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan.,Department of Materials Structure Science, School of High Energy Accelerator Science, SOKENDAI (the Graduate University for Advanced Studies) , 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Youichi Murakami
- Institute of Materials Structure Science, High Energy Accelerator Research Organization , 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan.,Department of Materials Structure Science, School of High Energy Accelerator Science, SOKENDAI (the Graduate University for Advanced Studies) , 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Toshiharu Yokoyama
- ACCEL, Japan Science and Technology Agency , 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan.,Materials Research Center for Element Strategy, Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Hideo Hosono
- ACCEL, Japan Science and Technology Agency , 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan.,Materials Research Center for Element Strategy, Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.,Materials and Structures Laboratory, Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.,Frontier Research Center, Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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21
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Kelly SD, Hesterberg D, Ravel B. Analysis of Soils and Minerals Using X-ray Absorption Spectroscopy. METHODS OF SOIL ANALYSIS PART 5-MINERALOGICAL METHODS 2015. [DOI: 10.2136/sssabookser5.5.c14] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- S. D. Kelly
- Argonne National Laboratory; Argonne Illinois
| | - D. Hesterberg
- North Carolina State University; Raleigh North Carolina
| | - B. Ravel
- Argonne National Laboratory; Argonne Illinois
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22
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Goode AE, Porter AE, Ryan MP, McComb DW. Correlative electron and X-ray microscopy: probing chemistry and bonding with high spatial resolution. NANOSCALE 2015; 7:1534-1548. [PMID: 25532909 DOI: 10.1039/c4nr05922k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Two powerful and complementary techniques for chemical characterisation of nanoscale systems are electron energy-loss spectroscopy in the scanning transmission electron microscope, and X-ray absorption spectroscopy in the scanning transmission X-ray microscope. A correlative approach to spectro-microscopy may not only bridge the gaps in spatial and spectral resolution which exist between the two instruments, but also offer unique opportunities for nanoscale characterisation. This review will discuss the similarities of the two spectroscopy techniques and the state of the art for each microscope. Case studies have been selected to illustrate the benefits and limitations of correlative electron and X-ray microscopy techniques. In situ techniques and radiation damage are also discussed.
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Affiliation(s)
- Angela E Goode
- Department of Materials, Imperial College London, London SW7 2AZ, UK.
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23
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The analytical calibration in (bio)imaging/mapping of the metallic elements in biological samples – Definitions, nomenclature and strategies: State of the art. Talanta 2015; 131:273-85. [DOI: 10.1016/j.talanta.2014.07.089] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Revised: 07/26/2014] [Accepted: 07/30/2014] [Indexed: 01/04/2023]
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24
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SUN JL, LUO LQ. A Study on Distribution and Chemical Speciation of Lead in Corn Seed Germination by Synchrotron Radiation X-ray Fluorescence and Absorption Near Edge Structure Spectrometry. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1016/s1872-2040(14)60774-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Jacques SDM, Di Michiel M, Kimber SAJ, Yang X, Cernik RJ, Beale AM, Billinge SJL. Pair distribution function computed tomography. Nat Commun 2014; 4:2536. [PMID: 24077398 DOI: 10.1038/ncomms3536] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Accepted: 09/03/2013] [Indexed: 11/09/2022] Open
Abstract
An emerging theme of modern composites and devices is the coupling of nanostructural properties of materials with their targeted arrangement at the microscale. Of the imaging techniques developed that provide insight into such designer materials and devices, those based on diffraction are particularly useful. However, to date, these have been heavily restrictive, providing information only on materials that exhibit high crystallographic ordering. Here we describe a method that uses a combination of X-ray atomic pair distribution function analysis and computed tomography to overcome this limitation. It allows the structure of nanocrystalline and amorphous materials to be identified, quantified and mapped. We demonstrate the method with a phantom object and subsequently apply it to resolving, in situ, the physicochemical states of a heterogeneous catalyst system. The method may have potential impact across a range of disciplines from materials science, biomaterials, geology, environmental science, palaeontology and cultural heritage to health.
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Affiliation(s)
- Simon D M Jacques
- 1] School of Materials, University of Manchester, Manchester M13 9PL, UK [2] Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Didcot, Oxfordshire, OX11 0QX, UK
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Affiliation(s)
- Justin B. Sambur
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14850;
| | - Peng Chen
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14850;
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27
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Singer DM, Fox PM, Guo H, Marcus MA, Davis JA. Sorption and redox reactions of As(III) and As(V) within secondary mineral coatings on aquifer sediment grains. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:11569-11576. [PMID: 24041305 DOI: 10.1021/es402754f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Important reactive phenomena that affect the transport and fate of many elements occur at the mineral-water interface (MWI), including sorption and redox reactions. Fundamental knowledge of these phenomena are often based on observations of ideal mineral-water systems, for example, studies of molecular scale reactions on single crystal faces or the surfaces of pure mineral powders. Much less is understood about MWI in natural environments, which typically have nanometer to micrometer scale secondary mineral coatings on the surfaces of primary mineral grains. We examined sediment grain coatings from a well-characterized field site to determine the causes of rate limitations for arsenic (As) sorption and redox processes within the coatings. Sediments were obtained from the USGS field research site on Cape Cod, MA, and exposed to synthetic contaminated groundwater solutions. Uptake of As(III) and As(V) into the coatings was studied with a combination of electron microscopy and synchrotron techniques to assess concentration gradients and reactive processes, including electron transfer reactions. Transmission electron microscopy (TEM) and X-ray microprobe (XMP) analyses indicated that As was primarily associated with micrometer- to submicrometer aggregates of Mn-bearing nanoparticulate goethite. As(III) oxidation by this phase was observed but limited by the extent of exposed surface area of the goethite grains to the exterior of the mineral coatings. Secondary mineral coatings are potentially both sinks and sources of contaminants depending on the history of a contaminated site, and may need to be included explicitly in reactive transport models.
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Affiliation(s)
- David M Singer
- Earth Sciences Division, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
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28
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Hyne RV, Mann RM, Dillon CT, de Jonge MD, Paterson D, Howard DL. Secondary vitellogenesis persists despite disrupted fecundity in amphipods maintained on metal-contaminated sediment: X-ray fluorescence assessment of oocyte metal content. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2013; 93:31-38. [PMID: 23631891 DOI: 10.1016/j.ecoenv.2013.03.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 03/25/2013] [Accepted: 03/26/2013] [Indexed: 06/02/2023]
Abstract
Melita plumulosa is an epibenthic, detritivorous amphipod found in estuaries along the eastern coast of Australia. It has been utilized as a test organism in rapid ten to thirteen days reproduction toxicity tests for sediment quality assessment. The fecundity of females in the toxicity test has been found to be inhibited by exposure of the amphipods to contaminated sediments enriched with zinc and other metals. This study investigated the proposal that interference in vitellogenesis is the cause of reproductive toxicity of metals in crustaceans. Inspection of the ovaries from amphipods on day 6 of the test either from control or Zn/Pb/Cd/Cu-spiked sediment, that were nearing completion of vitellogenesis, showed that the females in all treatments were producing similar numbers of oocytes undergoing secondary vitellogenesis. The distribution of the Zn, Cu and Pb in the oocytes and ventral caeca of females was examined by X-ray fluorescence microscopy. Elemental mapping revealed a dense accumulation of Zn in primary oocytes and a uniform distribution of Zn and Cu in the secondary oocytes in all treatments. Zn and Cu were also observed to be uniformly distributed in the ventral caeca. Pb was not detected in either of these tissues. The apparent normal morphology and the typical number of oocytes undergoing secondary vitellogenesis suggest that vitellogenesis was not being disrupted by Pb displacing Zn in the metal-binding domain of vitellogenin in amphipods exposed to the contaminated sediment during the test. Alternative mechanisms for the reproductive toxicity of amphipods exposed for six days to metal-contaminated sediment are discussed.
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Affiliation(s)
- Ross V Hyne
- Centre for Ecotoxicology, Office of Environment and Heritage, Lidcombe, NSW 1825 Australia.
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29
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30
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X-ray Absorption Spectroscopy. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/b978-0-08-098259-5.00006-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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31
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Alessi DS, Uster B, Borca CN, Grolimund D, Bernier-Latmani R. Beam-induced oxidation of monomeric U(IV) species. JOURNAL OF SYNCHROTRON RADIATION 2013; 20:197-199. [PMID: 23254675 DOI: 10.1107/s0909049512041763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Accepted: 10/05/2012] [Indexed: 06/01/2023]
Abstract
Uranium L(III)-edge X-ray absorption spectroscopy is often used to probe the oxidation state and coordination of uranium in environmental samples, and micrometre-sized beams can be used to spatially map the distribution of uranium relative to other elements. Here a variety of uranium-containing environmental samples are analyzed at both microbeam and larger beam sizes to determine whether reoxidation of U(IV) occurred. Monomeric U(IV), a recently discovered product of U(VI) reduction by microbes and certain iron-bearing minerals at uranium-contaminated field sites, was found to be reoxidized during microbeam (3 µm × 2 µm) analysis of biomass and sediments containing the species but not at larger beam sizes. Thus, care must be taken when using X-ray microprobes to analyze samples containing monomeric U(IV).
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Affiliation(s)
- Daniel S Alessi
- Environmental Microbiology Laboratory, Ecole Polytechnique, Fédérale de Lausanne, Switzerland.
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32
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Szczerbowska-Boruchowska M, Krygowska-Wajs A, Ziomber A, Thor P, Wrobel P, Bukowczan M, Zizak I. The influence of electrical stimulation of vagus nerve on elemental composition of dopamine related brain structures in rats. Neurochem Int 2012; 61:156-65. [DOI: 10.1016/j.neuint.2012.04.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 04/14/2012] [Accepted: 04/18/2012] [Indexed: 11/24/2022]
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Jensen MP, Aryal BP, Gorman-Lewis D, Paunesku T, Lai B, Vogt S, Woloschak GE. Submicron hard X-ray fluorescence imaging of synthetic elements. Anal Chim Acta 2012; 722:21-8. [PMID: 22444530 DOI: 10.1016/j.aca.2012.01.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Revised: 01/20/2012] [Accepted: 01/26/2012] [Indexed: 10/28/2022]
Abstract
Synchrotron-based X-ray fluorescence microscopy (XFM) using hard X-rays focused into sub-micron spots is a powerful technique for elemental quantification and mapping, as well as microspectroscopic measurements such as μ-XANES (X-ray absorption near edge structure). We have used XFM to image and simultaneously quantify the transuranic element plutonium at the L(3) or L(2)-edge as well as Th and lighter biologically essential elements in individual rat pheochromocytoma (PC12) cells after exposure to the long-lived plutonium isotope (242)Pu. Elemental maps demonstrate that plutonium localizes principally in the cytoplasm of the cells and avoids the cell nucleus, which is marked by the highest concentrations of phosphorus and zinc, under the conditions of our experiments. The minimum detection limit under typical acquisition conditions with an incident X-ray energy of 18 keV for an average 202 μm(2) cell is 1.4 fg Pu or 2.9×10(-20) moles Pu μm(-2), which is similar to the detection limit of K-edge XFM of transition metals at 10 keV. Copper electron microscopy grids were used to avoid interference from gold X-ray emissions, but traces of strontium present in naturally occurring calcium can still interfere with plutonium detection using its L(α) X-ray emission.
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Affiliation(s)
- Mark P Jensen
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, IL 60439, USA.
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von der Kammer F, Ferguson PL, Holden PA, Masion A, Rogers KR, Klaine SJ, Koelmans AA, Horne N, Unrine JM. Analysis of engineered nanomaterials in complex matrices (environment and biota): general considerations and conceptual case studies. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2012; 31:32-49. [PMID: 22021021 DOI: 10.1002/etc.723] [Citation(s) in RCA: 233] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Revised: 03/30/2011] [Accepted: 06/29/2011] [Indexed: 05/08/2023]
Abstract
Advances in the study of the environmental fate, transport, and ecotoxicological effects of engineered nanomaterials (ENMs) have been hampered by a lack of adequate techniques for the detection and quantification of ENMs at environmentally relevant concentrations in complex media. Analysis of ENMs differs from traditional chemical analysis because both chemical and physical forms must be considered. Because ENMs are present as colloidal systems, their physicochemical properties are dependent on their surroundings. Therefore, the simple act of trying to isolate, observe, and quantify ENMs may change their physicochemical properties, making analysis extremely susceptible to artifacts. Many analytical techniques applied in materials science and other chemical/biological/physical disciplines may be applied to ENM analysis as well; however, environmental and biological studies may require that methods be adapted to work at low concentrations in complex matrices. The most pressing research needs are the development of techniques for extraction, cleanup, separation, and sample storage that introduce minimal artifacts to increase the speed, sensitivity, and specificity of analytical techniques, as well as the development of techniques that can differentiate between abundant, naturally occurring particles, and manufactured nanoparticles.
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Dillon CT. Synchrotron Radiation Spectroscopic Techniques as Tools for the Medicinal Chemist: Microprobe X-Ray Fluorescence Imaging, X-Ray Absorption Spectroscopy, and Infrared Microspectroscopy. Aust J Chem 2012. [DOI: 10.1071/ch11287] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This review updates the recent advances and applications of three prominent synchrotron radiation techniques, microprobe X-ray fluorescence spectroscopy/imaging, X-ray absorption spectroscopy, and infrared microspectroscopy, and highlights how these tools are useful to the medicinal chemist. A brief description of the principles of the techniques is given with emphasis on the advantages of using synchrotron radiation-based instrumentation rather than instruments using typical laboratory radiation sources. This review focuses on several recent applications of these techniques to solve inorganic medicinal chemistry problems, focusing on studies of cellular uptake, distribution, and biotransformation of established and potential therapeutic agents. The importance of using these synchrotron-based techniques to assist the development of, or validate the chemistry behind, drug design is discussed.
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Daudon M, Bazin DC. Application of Physical Methods to Kidney Stones and Randall’s Plaque Characterization. Urolithiasis 2012. [DOI: 10.1007/978-1-4471-4387-1_85] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Sedlmair J, Gleber SC, Mert SÖ, Bertilson M, von Hofsten O, Thieme J, Pfohl T. Imaging of vascular smooth muscle cells with soft X-ray spectromicroscopy. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2011; 17:991-1001. [PMID: 22067812 DOI: 10.1017/s1431927611012165] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Using X-ray microscopy and spectromicroscopy, vascular smooth muscle cells (VSMCs) were imaged, prepared without using additional embedding material or staining, but by applying simple, noncryo fixation techniques. The cells were imaged with a compact source transmission X-ray microscope and a scanning transmission X-ray microscope (STXM). With the STXM, spectromicroscopy was performed at the C K-edge and the Ca L(III,II)-edges. VSMCs were chosen because of their high amount of actin stress fibers, so that the actin cytoskeleton should be visible. Other parts of the cell, such as the nucleus and organelles, were also identified from the micrographs. Both in the spectra and the images, the effects of the different preparation procedures were observable. Furthermore, Ca hotspots were detected and their density is determined.
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Affiliation(s)
- Julia Sedlmair
- Institute for X-Ray Physics, Georg-August-University Göttingen, Friedrich-Hund-Pl. 1, D-37077 Göttingen, Germany.
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Liu J, Kohler JE, Blass AL, Moncaster JA, Mocofanescu A, Marcus MA, Blakely EA, Bjornstad KA, Amarasiriwardena C, Casey N, Goldstein LE, Soybel DI. Demand for Zn2+ in acid-secreting gastric mucosa and its requirement for intracellular Ca2+. PLoS One 2011; 6:e19638. [PMID: 21698273 PMCID: PMC3115935 DOI: 10.1371/journal.pone.0019638] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 04/07/2011] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND AND AIMS Recent work has suggested that Zn(2+) plays a critical role in regulating acidity within the secretory compartments of isolated gastric glands. Here, we investigate the content, distribution and demand for Zn(2+) in gastric mucosa under baseline conditions and its regulation during secretory stimulation. METHODS AND FINDINGS Content and distribution of zinc were evaluated in sections of whole gastric mucosa using X-ray fluorescence microscopy. Significant stores of Zn(2+) were identified in neural elements of the muscularis, glandular areas enriched in parietal cells, and apical regions of the surface epithelium. In in vivo studies, extraction of the low abundance isotope, (70)Zn(2+), from the circulation was demonstrated in samples of mucosal tissue 24 hours or 72 hours after infusion (250 µg/kg). In in vitro studies, uptake of (70)Zn(2+) from media was demonstrated in isolated rabbit gastric glands following exposure to concentrations as low as 10 nM. In additional studies, demand of individual gastric parietal cells for Zn(2+) was monitored using the fluorescent zinc reporter, fluozin-3, by measuring increases in free intracellular concentrations of Zn(2+) {[Zn(2+)](i)} during exposure to standard extracellular concentrations of Zn(2+) (10 µM) for standard intervals of time. Under resting conditions, demand for extracellular Zn(2+) increased with exposure to secretagogues (forskolin, carbachol/histamine) and under conditions associated with increased intracellular Ca(2+) {[Ca(2+)](i)}. Uptake of Zn(2+) was abolished following removal of extracellular Ca(2+) or depletion of intracellular Ca(2+) stores, suggesting that demand for extracellular Zn(2+) increases and depends on influx of extracellular Ca(2+). CONCLUSIONS This study is the first to characterize the content and distribution of Zn(2+) in an organ of the gastrointestinal tract. Our findings offer the novel interpretation, that Ca(2+) integrates basolateral demand for Zn(2+) with stimulation of secretion of HCl into the lumen of the gastric gland. Similar connections may be detectable in other secretory cells and tissues.
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Affiliation(s)
- JingJing Liu
- Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Jonathan E. Kohler
- Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Amy L. Blass
- Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Juliet A. Moncaster
- Molecular Aging & Development Laboratory, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Anca Mocofanescu
- Molecular Aging & Development Laboratory, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Matthew A. Marcus
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California, United States of America
- Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, United States of America
| | - Eleanor A. Blakely
- Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, United States of America
| | - Kathleen A. Bjornstad
- Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, United States of America
| | - Chitra Amarasiriwardena
- Channing Laboratories, Brigham and Women's Hospital, Harvard Medical School, and the Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Noel Casey
- Molecular Aging & Development Laboratory, Boston University School of Medicine, Boston, Massachusetts, United States of America
- Center for Biometals and Metallomics, Boston University, Boston, Massachusetts, United States of America
| | - Lee E. Goldstein
- Molecular Aging & Development Laboratory, Boston University School of Medicine, Boston, Massachusetts, United States of America
- Center for Biometals and Metallomics, Boston University, Boston, Massachusetts, United States of America
| | - David I. Soybel
- Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
- * E-mail:
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Nguyen C, Ea HK, Thiaudiere D, Reguer S, Hannouche D, Daudon M, Lioté F, Bazin D. Calcifications in human osteoarthritic articular cartilage: ex vivo assessment of calcium compounds using XANES spectroscopy. JOURNAL OF SYNCHROTRON RADIATION 2011; 18:475-480. [PMID: 21525657 DOI: 10.1107/s0909049511006984] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 02/23/2011] [Indexed: 05/30/2023]
Abstract
Calcium (Ca(2+))-containing crystals (CCs), including basic Ca(2+) phosphate (BCP) and Ca(2+) pyrophosphate dihydrate (CPPD) crystals, are associated with severe forms of osteoarthritis (OA). Growing evidence supports a role for abnormal articular cartilage mineralization in the pathogenesis of OA. However, the role of Ca(2+) compounds in this mineralization process remains poorly understood. Six patients, who underwent total knee joint replacement for primary OA, have been considered in this study. Cartilage from femoral condyles and tibial plateaus in the medial and lateral compartments was collected as 1 mm-thick slices cut tangentially to the articular surface. First, CCs presence and biochemical composition were assessed using Fourier transform infrared spectroscopy (FT-IR). Next, Ca(2+) compound biochemical form was further assessed using X-ray absorption spectroscopy (XAS) performed at the Ca(2+) K-absorption edge. Overall, 12 cartilage samples were assessed. Using FT-IR, BCP and CPPD crystals were detected in four and three out of 12 samples, respectively. Ca(2+) compound biochemical forms differed between areas with versus without CCs, when compared using XAS. The complete set of data shows that XANES spectroscopy can be used to accurately characterize sparse CCs in human OA cartilage. It is found that Ca(2+) compounds differ between calcified and non-calcified cartilage areas. In calcified areas they appear to be mainly involved in calcifications, namely Ca(2+) crystals.
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Tolrà R, Vogel-Mikuš K, Hajiboland R, Kump P, Pongrac P, Kaulich B, Gianoncelli A, Babin V, Barceló J, Regvar M, Poschenrieder C. Localization of aluminium in tea (Camellia sinensis) leaves using low energy X-ray fluorescence spectro-microscopy. JOURNAL OF PLANT RESEARCH 2011; 124:165-72. [PMID: 20422247 DOI: 10.1007/s10265-010-0344-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2010] [Accepted: 03/25/2010] [Indexed: 05/25/2023]
Abstract
Information on localization of Al in tea leaf tissues is required in order to better understand Al tolerance mechanism in this Al-accumulating plant species. Here, we have used low-energy X-ray fluorescence spectro-microscopy (LEXRF) to study localization of Al and other low Z-elements, namely C, O, Mg, Si and P, in fully developed leaves of the tea plant [Camellia sinensis (L.) O. Kuntze]. Plants were grown from seeds for 3 months in a hydroponic solution, and then exposed to 200 microM AlCl(3) for 2 weeks. Epidermal-mesophyll and xylem phloem regions of 20 microm thick cryo-fixed freeze-dried tea-leaf cross-sections were raster scanned with 1.7 and 2.2 keV excitation energies to reach the Al-K and P-K absorption edges. Al was mainly localized in the cell walls of the leaf epidermal cells, while almost no Al signal was obtained from the leaf symplast. The results suggest that the retention of Al in epidermal leaf apoplast represent the main tolerance mechanism to Al in tea plants. In addition LEXRF proved to be a powerful tool for localization of Al in plant tissues, which can help in our understanding of the processes of Al uptake, transport and tolerance in plants.
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Affiliation(s)
- Roser Tolrà
- Laboratorio de Fisiología Vegetal, Facultad de Biociencias, Universidad Autónoma de Barcelona, 08193 Bellaterra, Spain
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Beale AM, Jacques SDM, Weckhuysen BM. Chemical imaging of catalytic solids with synchrotron radiation. Chem Soc Rev 2010; 39:4656-72. [PMID: 20978688 DOI: 10.1039/c0cs00089b] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heterogeneous catalysis is a term normally used to describe a group of catalytic processes, yet it could equally be employed to describe the catalytic solid itself. A better understanding of the chemical and structural variation within such materials is thus a pre-requisite for the rationalising of structure-function relationships and ultimately to the design of new, more sustainable catalytic processes. The past 20 years has witnessed marked improvements in technologies required for analytical measurements at synchrotron sources, including higher photon brightness, nano-focusing, rapid, high resolution data acquisition and in the handling of large volumes of data. It is now possible to image materials using the entire synchrotron radiative profile, thus heralding a new era of in situ/operando measurements of catalytic solids. In this tutorial review we discuss the recent work in this exciting new research area and finally conclude with a future outlook on what will be possible/challenging to measure in the not-too-distant future.
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Affiliation(s)
- Andrew M Beale
- Inorganic Chemistry and Catalysis, Debye Institute for NanoMaterials Science, Sorbonnelaan 16, 3584 CA, Utrecht, The Netherlands.
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Wu CS, Khaing Oo MK, Fan X. Highly sensitive multiplexed heavy metal detection using quantum-dot-labeled DNAzymes. ACS NANO 2010; 4:5897-5904. [PMID: 20925347 DOI: 10.1021/nn1021988] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We developed highly sensitive and specific nanosensors based on quantum dots (QDs) and DNAzyme for multiplexed detection of heavy metal ions in liquid. The QDs were coated with a thin silica layer for increased stability and higher quantum yield while maintaining a relatively small size for highly efficient energy transfer. The QD-DNAzyme nanosensors were constructed by conjugating quencher-labeled DNAzymes onto the surface of carboxyl-silanized QDs. In the presence of metal ions, the emission is restored due to the cleavage of DNAzymes. The detection could be completed within 25 min with a single laser excitation source. The detection limit of 0.2 and 0.5 nM was experimentally achieved for Pb(2+) and Cu(2+), respectively, which is a 50- and 70-fold improvement over the recent results obtained with dye molecules. Multiplexed detection was also demonstrated using two different colors of QDs, showing negligible cross-talk between the Pb(2+) detection and Cu(2+) detection.
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Affiliation(s)
- Chung-Shieh Wu
- Biomedical Engineering Department, University of Michigan, 1101 Beal Avenue, Ann Arbor, Michigan 48109, United States
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Wang B, Wang Z, Feng W, Wang M, Hu Z, Chai Z, Zhao Y. New methods for nanotoxicology: synchrotron radiation-based techniques. Anal Bioanal Chem 2010; 398:667-76. [DOI: 10.1007/s00216-010-3752-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 04/06/2010] [Accepted: 04/13/2010] [Indexed: 10/19/2022]
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Ginder-Vogel M, Sparks DL. The Impacts of X-Ray Absorption Spectroscopy on Understanding Soil Processes and Reaction Mechanisms. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/s0166-2481(10)34001-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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Kaulich B, Gianoncelli A, Beran A, Eichert D, Kreft I, Pongrac P, Regvar M, Vogel-Mikus K, Kiskinova M. Low-energy X-ray fluorescence microscopy opening new opportunities for bio-related research. J R Soc Interface 2009; 6 Suppl 5:S641-7. [PMID: 19570794 DOI: 10.1098/rsif.2009.0157.focus] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Biological systems are unique matter with very complex morphology and highly heterogeneous chemical composition dominated by light elements. Discriminating qualitatively at the sub-micrometer level the lateral distribution of constituent elements, and correlating it to the sub-cellular biological structure, continues to be a challenge. The low-energy X-ray fluorescence microspectroscopy, recently implemented in TwinMic scanning transmission mode, has opened up new opportunities for mapping the distribution of the light elements, complemented by morphology information provided by simultaneous acquisition of absorption and phase contrast images. The important new information that can be obtained in bio-related research domains is demonstrated by two pilot experiments with specimens of interest for marine biology and food science. They demonstrate the potential to yield important insights into the structural and compositional enrichment, distribution and correlation of essential trace elements in the lorica of Tintinnopsis radix, and the lateral distribution of trace nutrients in the seeds of wheat Triticum aestivum.
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Grunwaldt JD, Kimmerle B, Baiker A, Boye P, Schroer CG, Glatzel P, Borca CN, Beckmann F. Catalysts at work: From integral to spatially resolved X-ray absorption spectroscopy. Catal Today 2009. [DOI: 10.1016/j.cattod.2008.11.002] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Bazin D, Chappard C, Combes C, Carpentier X, Rouzière S, André G, Matzen G, Allix M, Thiaudière D, Reguer S, Jungers P, Daudon M. Diffraction techniques and vibrational spectroscopy opportunities to characterise bones. Osteoporos Int 2009; 20:1065-75. [PMID: 19340497 DOI: 10.1007/s00198-009-0868-3] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- D Bazin
- Laboratoire de Physique des Solides, Bat 510, Université Paris XI, 91405 Orsay, France.
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