1
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Milton LA, Davern JW, Hipwood L, Chaves JDS, McGovern J, Broszczak D, Hutmacher DW, Meinert C, Toh YC. Liver click dECM hydrogels for engineering hepatic microenvironments. Acta Biomater 2024:S1742-7061(24)00351-9. [PMID: 38960110 DOI: 10.1016/j.actbio.2024.06.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 06/20/2024] [Accepted: 06/25/2024] [Indexed: 07/05/2024]
Abstract
Decellularized extracellular matrix (dECM) hydrogels provide tissue-specific microenvironments which accommodate physiological cellular phenotypes in 3D in vitro cell cultures. However, their formation hinges on collagen fibrillogenesis, a complex process which limits regulation of physicochemical properties. Hence, achieving reproducible results with dECM hydrogels poses as a challenge. Here, we demonstrate that thiolation of solubilized liver dECM enables rapid formation of covalently crosslinked hydrogels via Michael-type addition, allowing for precise control over mechanical properties and superior organotypic biological activity. Investigation of various decellularization methodologies revealed that treatment of liver tissue with Triton X-100 and ammonium hydroxide resulted in near complete DNA removal with significant retention of the native liver proteome. Chemical functionalization of pepsin-solubilized liver dECMs via 1-ethyl-3(3-dimethylamino)propyl carbodiimide (EDC)/N-hydroxysuccinimide (NHS) coupling of l-Cysteine created thiolated liver dECM (dECM-SH), which rapidly reacted with 4-arm polyethylene glycol (PEG)-maleimide to form optically clear hydrogels under controlled conditions. Importantly, Young's moduli could be precisely tuned between 1 - 7 kPa by varying polymer concentrations, enabling close replication of healthy and fibrotic liver conditions in in vitro cell cultures. Click dECM-SH hydrogels were cytocompatible, supported growth of HepG2 and HepaRG liver cells, and promoted liver-specific functional phenotypes as evidenced by increased metabolic activity, as well CYP1A2 and CYP3A4 activity and excretory function when compared to monolayer culture and collagen-based hydrogels. Our findings demonstrate that click-functionalized dECM hydrogels offer a highly controlled, reproducible alternative to conventional tissue-derived hydrogels for in vitro cell culture applications. STATEMENT OF SIGNIFICANCE: Traditional dECM hydrogels face challenges in reproducibility and mechanical property control due to variable crosslinking processes. We introduce a click hydrogel based on porcine liver decellularized extracellular matrix (dECM) that circumnavigates these challenges. After optimizing liver decellularization for ECM retention, we integrated thiol-functionalized liver dECM with polyethylene-glycol derivatives through Michael-type addition click chemistry, enabling rapid, room-temperature gelation. This offers enhanced control over the hydrogel's mechanical and biochemical properties. The resultant click dECM hydrogels mimic the liver's natural ECM and exhibit greater mechanical tunability and handling ease, facilitating their application in high-throughput and industrial settings. Moreover, these hydrogels significantly improve the function of HepaRG-derived hepatocytes in 3D culture, presenting an advancement for liver tissue cell culture models for drug testing applications.
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Affiliation(s)
- Laura A Milton
- Faculty of Engineering, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Australia; Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; Gelomics Pty Ltd, Brisbane, Australia
| | - Jordan W Davern
- Faculty of Engineering, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Australia; Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; Gelomics Pty Ltd, Brisbane, Australia; ARC Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology, Brisbane, Australia
| | - Luke Hipwood
- Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; Gelomics Pty Ltd, Brisbane, Australia; Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia
| | - Juliana D S Chaves
- Cell & Molecular Biology Department, Mental Health Program, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Jacqui McGovern
- Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; ARC Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology, Brisbane, Australia; Max Planck Queensland Centre (MPQC) for the Materials Science of Extracellular Matrices, Queensland University of Technology, Brisbane, Australia
| | - Daniel Broszczak
- Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia
| | - Dietmar W Hutmacher
- Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; ARC Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology, Brisbane, Australia; Max Planck Queensland Centre (MPQC) for the Materials Science of Extracellular Matrices, Queensland University of Technology, Brisbane, Australia; Australian Research Council (ARC) Training Centre for Multiscale 3D Imaging, Modelling and Manufacturing (M3D Innovation), Queensland University of Technology, Brisbane, Australia
| | - Christoph Meinert
- Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; Gelomics Pty Ltd, Brisbane, Australia.
| | - Yi-Chin Toh
- Faculty of Engineering, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Australia; Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; ARC Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology, Brisbane, Australia; Max Planck Queensland Centre (MPQC) for the Materials Science of Extracellular Matrices, Queensland University of Technology, Brisbane, Australia; Centre for Microbiome Research, Queensland University of Technology, Brisbane, Australia.
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2
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Mao L, Zhang Y, Zhang H, Liu H, Gao YP. Anti-aggregation colorimetric sensing of cysteine using silver nanoparticles in the presence of Pb 2. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:2378-2385. [PMID: 38572618 DOI: 10.1039/d4ay00351a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Using silver nitrate as the silver source and sodium borohydride as the reducing agent, we synthesized negatively charged silver nanoparticles (AgNPs). Subsequently, the AgNPs solution was mixed with positively charged lead ions, resulting in AgNPs aggregation via electrostatic interactions. This led to a color change in the solution from yellow to purple and eventually to blue-green. Our study focused on a colorimetric method that exhibited high selectivity and sensitivity in detecting cysteine using AgNPs-Pb2+ as a sensing probe. Upon the introduction of cysteine to the AgNPs-Pb2+ system, the absorbance of AgNPs increased at 396 nm and decreased at 520 nm. The formation of a complex between cysteine and lead ions prevented the aggregation of silver nanoparticles, enabling the colorimetric detection of cysteine. The relationship between the concentration of ΔA396/A520 and cysteine showed linearity within the range of 0.01 to 0.1 μM; the regression equation of the calibration curve is ΔA396/A520 = 9.0005c - 0.0557 (c: μM), with an R2 value of 0.9997. The detection limit was found to be 3.8 nM (S/N = 3). This method demonstrated exceptional selectivity and sensitivity for cysteine and was effectively used for the determination of cysteine in urine. Our findings offer a new perspective for the future advancement of anti-aggregation silver nanocolorimetry.
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Affiliation(s)
- Lihui Mao
- School of Science and Engineering, Xinyang College, Xinyang, 464000, China.
- School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning, 530006, China
| | - Yi Zhang
- School of Science and Engineering, Xinyang College, Xinyang, 464000, China.
| | - Huan Zhang
- School of Science and Engineering, Xinyang College, Xinyang, 464000, China.
| | - Huili Liu
- School of Science and Engineering, Xinyang College, Xinyang, 464000, China.
| | - Yong-Ping Gao
- School of Science and Engineering, Xinyang College, Xinyang, 464000, China.
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3
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Zhao J, Mathew RA, Yang DS, Vekilov PG, Hu Y, Louie SM. Natural organic matter flocculation behavior controls lead phosphate particle aggregation by mono- and divalent cations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 866:161346. [PMID: 36603637 DOI: 10.1016/j.scitotenv.2022.161346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 11/18/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Phosphate addition is commonly applied to remediate lead contaminated sites via the formation of lead phosphate particles with low solubility. However, the effects of natural organic matter (NOM) with different properties, as well as the contributions of specific interactions (particle-particle, particle-NOM, and NOM-NOM) in enhanced stabilization or flocculation of the particles, are not currently well understood. This study investigates the influence of two aquatic NOM and two soil or coal humic acid (HA) extracts on the aggregation behavior of lead phosphate particles and explores the controlling mechanisms. All types of NOM induced disaggregation and steric stabilization of the particles in the presence of Na+ (100 mM) or low (1 mM) Ca2+ concentrations, as well as at low NOM concentrations (1 mgC/L). However, for the soil and coal HA, a threshold at NOM concentrations of 10 mgC/L and high (3 mM) Ca2+ concentrations was observed where bridging flocculation (rather than steric stabilization) occurred. In situ attenuated total reflectance - Fourier transform infrared characterization confirmed adsorption of the soil and coal humic acid extracts (10 mgC/L) onto the surface of the lead phosphate particles in 3 mM Ca2+, whereas dynamic and static light scattering demonstrated extensive HA flocculation that dominated the overall scattered light intensities. These results imply that the accelerated aggregation was induced by a combination of HA adsorption and bridging flocculation by Ca2+. Overall, this research demonstrates that the type of NOM is critical to predict the colloidal stability of lead phosphate particles. Aquatic NOM stabilized the particles under all conditions evaluated, but soil or coal HA with higher molecular weight and aromaticity showed highly variable stabilization or flocculation behavior depending on the HA and Ca2+ concentrations available to adsorb to the particles and participate in bridging. These results provide new mechanistic insights on particle stabilization or destabilization by NOM.
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Affiliation(s)
- Juntao Zhao
- Department of Civil & Environmental Engineering, University of Houston, Houston, TX 77004, USA
| | - Riya A Mathew
- Department of Civil & Environmental Engineering, University of Houston, Houston, TX 77004, USA
| | - David S Yang
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77004, USA
| | - Peter G Vekilov
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77004, USA
| | - Yandi Hu
- Department of Civil & Environmental Engineering, University of Houston, Houston, TX 77004, USA; College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Beijing 100871, China
| | - Stacey M Louie
- Department of Civil & Environmental Engineering, University of Houston, Houston, TX 77004, USA.
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4
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Yoshinari N, Kuwamura N, Kojima T, Konno T. Development of coordination chemistry with thiol-containing amino acids. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214857] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Wan Nafi A, Taseidifar M. Removal of hazardous ions from aqueous solutions: Current methods, with a focus on green ion flotation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 319:115666. [PMID: 35849932 DOI: 10.1016/j.jenvman.2022.115666] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/20/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
Hazardous ions, like those of heavy metals, cause significant health and environmental problems when they are discharged into water resources naturally or through various industrial processes. Removing these ions from water is of significant importance in the provision of high-quality water for drinking and agricultural usage. This work discusses current techniques that are frequently used for the removal of heavy-metal ions from aqueous solutions by absorption, particularly the use of biodegradable surfactants in ion flotation. Certain new surfactants promise high efficiency in their use in the ion-flotation process and in their application in industrial-water treatment to remove heavy metals. As an example, this work demonstrates the high efficiency of surfactants based on an amino-acid (L-cysteine) in removing a range of heavy-metal ions in a simple, single-stage ion-flotation process. High foaming ability, the ability to operate in various temperatures and pHs, decomposing into natural products and high binding affinity for heavy-metal ions make the cysteine-based surfactants a highly suitable compound to replace current commercial surfactants in ion- and froth-flotation processes. Removal of particular ions can also be achieved in ion flotation; a suitable choice of parameters, such as pH and surfactant concentration, favours the surfactant binding to those ions. Further intensive work is required to develop an optimal process to recover valuable elements from waste solutions.
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Affiliation(s)
- Atikah Wan Nafi
- School of Science, UNSW Canberra, Canberra, ACT, 2610, Australia
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6
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Yang M, Li C, Tian Y, Wu L, Hu J, Hou X. Dielectric barrier discharge-accelerated one-pot synthesis of sulfur quantum dots for fluorescent sensing of lead ions and L-cysteine. Chem Commun (Camb) 2022; 58:8614-8617. [PMID: 35815582 DOI: 10.1039/d2cc02993f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Here, we report a novel method for the one-pot facile synthesis of sulfur quantum dots (SQDs) based on a dielectric barrier discharge (DBD)-accelerated H2O2 etching strategy within merely 20 min. The formation mechanism of SQDs was investigated, with which an "ON-OFF-ON" fluorescence sensor was developed for the detection of Pb2+ ions and L-cysteine.
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Affiliation(s)
- Manlin Yang
- Key Laboratory of Green Chemistry & Technology (MOE), College of Chemistry, Sichuan University, Chengdu, 610064, China.
| | - Chenghui Li
- Analytical & Testing Centre, Sichuan University, Chengdu, 610064, China.
| | - Yunfei Tian
- Analytical & Testing Centre, Sichuan University, Chengdu, 610064, China.
| | - Lan Wu
- Analytical & Testing Centre, Sichuan University, Chengdu, 610064, China.
| | - Jing Hu
- Analytical & Testing Centre, Sichuan University, Chengdu, 610064, China.
| | - Xiandeng Hou
- Key Laboratory of Green Chemistry & Technology (MOE), College of Chemistry, Sichuan University, Chengdu, 610064, China. .,Analytical & Testing Centre, Sichuan University, Chengdu, 610064, China.
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7
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Al‐Gawati MA, Albrithen H, Alhazaa AN, Alodhayb AN. Sensitivity enhancement of microelectromechanical sensors using femtosecond laser for biological and chemical applications. SURF INTERFACE ANAL 2022. [DOI: 10.1002/sia.7132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mahmoud A. Al‐Gawati
- Department of Physics and Astronomy, College of Science King Saud University Riyadh Saudi Arabia
- King Abdullah Institute for Nanotechnology King Saud University Riyadh Saudi Arabia
| | - Hamad Albrithen
- Department of Physics and Astronomy, College of Science King Saud University Riyadh Saudi Arabia
- King Abdullah Institute for Nanotechnology King Saud University Riyadh Saudi Arabia
- Research Chair for Tribology, Surface, and Interface Sciences, Department of Physics and Astronomy, College of Science King Saud University Riyadh Saudi Arabia
| | - Abdulaziz N. Alhazaa
- Department of Physics and Astronomy, College of Science King Saud University Riyadh Saudi Arabia
- King Abdullah Institute for Nanotechnology King Saud University Riyadh Saudi Arabia
- Research Chair for Tribology, Surface, and Interface Sciences, Department of Physics and Astronomy, College of Science King Saud University Riyadh Saudi Arabia
| | - Abdullah N. Alodhayb
- Department of Physics and Astronomy, College of Science King Saud University Riyadh Saudi Arabia
- King Abdullah Institute for Nanotechnology King Saud University Riyadh Saudi Arabia
- Research Chair for Tribology, Surface, and Interface Sciences, Department of Physics and Astronomy, College of Science King Saud University Riyadh Saudi Arabia
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8
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Sauser L, Kalvoda T, Kavas A, Rulíšek L, Shoshan M. Cyclic Octapeptides Composed of Two Glutathione Units Outperform the Monomer in Lead Detoxification. ChemMedChem 2022; 17:e202200152. [PMID: 35560783 PMCID: PMC9544108 DOI: 10.1002/cmdc.202200152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/11/2022] [Indexed: 11/06/2022]
Abstract
A rationally-designed scaffold of cyclic octapeptides composed of two units of the natural tripeptide glutathione (GSH) was optimized to strongly and selectively capture toxic lead ions (Pb(II)). Using state-of-the-art computational tools, a list of eleven plausible peptides was shortened to five analogs based on their calculated affinity to Pb(II) ions. We then synthesized and investigated them for their abilities to recover Pb-poisoned human cells. A clear pattern was observed from the in vitro detoxification results, indicating the importance of cavity size and polar moieties to enhance metal capturing. These, together with the apparent benefit in cyclizing the peptides, improved the detoxification of the two lead peptides by approximately two folds compared to GSH and the benchmark chelating agents against Pb poisoning. Moreover, the two peptides did not show any toxicity and, therefore, were thoroughly investigated to determine their potential as next-generation remedies for Pb poisoning.
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Affiliation(s)
- Luca Sauser
- University of Zurich: Universitat Zurich, Department of Chemistry, SWITZERLAND
| | - Tadeáš Kalvoda
- Czech Academy of Sciences: Akademie ved Ceske republiky, Institute of Organic Chemistry and Biochemistry, CZECH REPUBLIC
| | - Ayça Kavas
- University of Zurich: Universitat Zurich, Department of Chemistry, SWITZERLAND
| | - Lubomír Rulíšek
- Czech Academy of Sciences: Akademie ved Ceske republiky, Institute of Organic Chemistry and Biochemistry, CZECH REPUBLIC
| | - Michal Shoshan
- University of Zurich: Universitat Zurich, Department of Chemistry, Winterthurerstrasse 190, 8057, Zurich, SWITZERLAND
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9
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Mehta PK, Jeon J, Ryu K, Park SH, Lee KH. Ratiometric fluorescent detection of lead ions in aquatic environment and living cells using a fluorescent peptide-based probe. JOURNAL OF HAZARDOUS MATERIALS 2022; 427:128161. [PMID: 35033727 DOI: 10.1016/j.jhazmat.2021.128161] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/21/2021] [Accepted: 12/24/2021] [Indexed: 06/14/2023]
Abstract
Ratiometric fluorescent detection using dual emission bands is highly necessary to quantify Pb(II) in aquatic environment and live cells. We synthesized a ratiometric fluorescent peptidyl probe (1) by conjugation of a peptide receptor for Pb(II) with an excimer-forming benzothiazolylcyanovinylene fluorophore. The peptidyl probe dissolved well in aqueous solution and displayed an emission band at 538 nm (λex = 460 nm). Upon addition of Pb(II) (0-20 μM), the emission maximum shifted from 538 nm to 575 nm and the emission intensity ratio (I575 /I538) increased significantly from 0.40 to 2.26. 1 exhibited a selective ratiometric response to Pb(II) over other metal ions. 1 with a low detection limit (1.2 ppb) of Pb(II) detected nanomolar concentrations (0-500 nM) of Pb(II) ions in groundwater and tap water. The cell-permeable probe detected intracellular Pb(II) by ratiometric fluorescent images. The binding mode study using NMR, IR and CD spectroscopy, and TEM revealed that the probe formed a 1:1 complex with Pb(II) and then formed red-emissive nanoparticles and fibrils. The probe exhibited desirable detection properties such as ratiometric detection, high solubility in water, visible light excitation, high selectivity and sensitivity for Pb(II), cell-permeability, and rapid response (< 6 min).
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Affiliation(s)
- Pramod Kumar Mehta
- Research Center for Controlling Intercellular Communication and Education and Research Center for Smart Energy Materials and Process, Department of Chemistry and Chemical Engineering, Inha University, Incheon 402-751, South Korea
| | - Jongyong Jeon
- Research Center for Controlling Intercellular Communication and Education and Research Center for Smart Energy Materials and Process, Department of Chemistry and Chemical Engineering, Inha University, Incheon 402-751, South Korea
| | - Ki Ryu
- Research Center for Controlling Intercellular Communication and Education and Research Center for Smart Energy Materials and Process, Department of Chemistry and Chemical Engineering, Inha University, Incheon 402-751, South Korea
| | - See-Hyoung Park
- Department of Bio and Chemical Engineering, Hongik University, Sejong 30016, South Korea
| | - Keun-Hyeung Lee
- Research Center for Controlling Intercellular Communication and Education and Research Center for Smart Energy Materials and Process, Department of Chemistry and Chemical Engineering, Inha University, Incheon 402-751, South Korea.
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10
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Sowers TD, Bone SE, Noerpel MR, Blackmon MD, Karna RR, Scheckel KG, Juhasz AL, Diamond GL, Thomas DJ, Bradham KD. Plumbojarosite Remediation of Soil Affects Lead Speciation and Elemental Interactions in Soil and in Mice Tissues. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:15950-15960. [PMID: 34806356 PMCID: PMC9606633 DOI: 10.1021/acs.est.1c06067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Lead (Pb) contamination of soils is of global concern due to the devastating impacts of Pb exposure in children. Because early-life exposure to Pb has long-lasting health effects, reducing exposure in children is a critical public health goal that has intensified research on the conversion of soil Pb to low bioavailability phases. Recently, plumbojarosite (PLJ) conversion of highly available soil Pb was found to decrease Pb relative bioavailability (RBA <10%). However, there is sparse information concerning interactions between Pb and other elements when contaminated soil, pre- and post-remediation, is ingested and moves through the gastrointestinal tract (GIT). Addressing this may inform drivers of effective chemical remediation strategies. Here, we utilize bulk and micro-focused Pb X-ray absorption spectroscopy to probe elemental interactions and Pb speciation in mouse diet, cecum, and feces samples following ingestion of contaminated soils pre- and post-PLJ treatment. RBA of treated soils was less than 1% with PLJ phases transiting the GIT with little absorption. In contrast, Pb associated with organics was predominantly found in the cecum. These results are consistent with transit of insoluble PLJ to feces following ingestion. The expanded understanding of Pb interactions during GIT transit complements our knowledge of elemental interactions with Pb that occur at higher levels of biological organization.
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Affiliation(s)
- Tyler D Sowers
- Center of Environmental Measurement and Modeling, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States
| | - Sharon E Bone
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Matthew R Noerpel
- Center for Environmental Solutions & Emergency Response, Office of Research and Development, US Environmental Protection Agency, Cincinnati, Ohio 45268, United States
| | - Matthew D Blackmon
- Center of Environmental Measurement and Modeling, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States
| | - Ranju R Karna
- Bennett Aerospace, Inc., Engineer Research and Development Center, USACE, Vicksburg, Mississippi 39183, United States
| | - Kirk G Scheckel
- Center for Environmental Solutions & Emergency Response, Office of Research and Development, US Environmental Protection Agency, Cincinnati, Ohio 45268, United States
| | - Albert L Juhasz
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide, SA 5095, Australia
| | - Gary L Diamond
- SRC, Inc., North Syracuse, New York 13212, United States
| | - David J Thomas
- Center for Computational Toxicology & Exposure, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States
| | - Karen D Bradham
- Center of Environmental Measurement and Modeling, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States
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11
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Mohammed TA, Meier CM, Kalvoda T, Kalt M, Rulíšek L, Shoshan MS. Potent Cyclic Tetrapeptide for Lead Detoxification. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tagwa A. Mohammed
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Christoph M. Meier
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Tadeáš Kalvoda
- Institute of Organic Chemistry and Biochemistry Czech Academy of Sciences Flemingovo náměstí 2 16610 Praha 6 Czech Republic
| | - Martina Kalt
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Lubomír Rulíšek
- Institute of Organic Chemistry and Biochemistry Czech Academy of Sciences Flemingovo náměstí 2 16610 Praha 6 Czech Republic
| | - Michal S. Shoshan
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
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12
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Mohammed TA, Meier CM, Kalvoda T, Kalt M, Rulíšek L, Shoshan MS. Potent Cyclic Tetrapeptide for Lead Detoxification. Angew Chem Int Ed Engl 2021; 60:12381-12385. [PMID: 33759306 DOI: 10.1002/anie.202103217] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Indexed: 11/05/2022]
Abstract
Lead (Pb) is a ubiquitous poisonous metal, affecting the health of vast populations worldwide. Medications to treat Pb poisoning suffer from various limitations and are often toxic owing to insufficient metal selectivity. Here, we report a cyclic tetrapeptide that selectively binds Pb and eradicates its toxic effect on the cellular level, with superior potency than state-of-the-art drugs. The Pb-peptide complex is remarkably strong and was characterized experimentally and computationally. Accompanied by the lack of toxicity and enhanced stability of this peptide, these qualities indicate its merit as a potential remedy for Pb poisoning.
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Affiliation(s)
- Tagwa A Mohammed
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Christoph M Meier
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Tadeáš Kalvoda
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí 2, 16610, Praha 6, Czech Republic
| | - Martina Kalt
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Lubomír Rulíšek
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí 2, 16610, Praha 6, Czech Republic
| | - Michal S Shoshan
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
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13
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Kadu R, Wani NA, Savani C, Aravinda S, Rai R, Singh VK. Synthesis, crystallographic characterization and Hirshfeld surface analysis of metal complexes of conformationally constrained β-amino acid, 2-(1-aminocyclohexyl)acetic acid with CoII, NiII, CuII and ZnII ions. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Narouei FH, Kirk KA, Andreescu S. Electrochemical Quantification of Lead Adsorption on TiO
2
Nanoparticles. ELECTROANAL 2021. [DOI: 10.1002/elan.202060152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Kevin A. Kirk
- Department of Chemistry and Biomolecular Science Clarkson University Potsdam NY 13699-5810 USA
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science Clarkson University Potsdam NY 13699-5810 USA
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15
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Sun Q, Cui P, Wu S, Liu C, Fan T, Alves ME, Cheng H, Huang M, Zhou D, Wang Y. Role of Reduced Sulfur in the Transformation of Cd(II) Immobilized by δ-MnO 2. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:14955-14963. [PMID: 33175488 DOI: 10.1021/acs.est.0c02936] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mn oxides are the major sinks for Cd(II) in the aquatic environment. At the redox interface, reduced sulfur might affect the fate of sorbed Cd(II) by either reducing Mn oxides or forming strong complexes with Cd(II). Here, we investigated the fate of Cd(II) immobilized on δ-MnO2 affected by reduced sulfur (S2- and cysteine). A low concentration of S2- led to Cd(II) migration from vacant sites to edge sites, while a high concentration of S2- largely converted Cd(II) adsorbed on the surface of δ-MnO2 to CdS. At low pH, the cysteine addition led to the release of Cd(II) initially adsorbed at the δ-MnO2 vacant sites into the solution and caused the migration of a small portion of Cd(II) to the δ-MnO2 edge sites. At high pH, a high concentration of cysteine led to the detachment of Cd(II) from δ-MnO2, Cd(II) readsorption by Mn(III)-bearing minerals, and Cd-cysteine formation. Changes of Cd(II) speciation were caused by δ-MnO2 dissolution induced by reduced sulfur, the competition of generated Mn(II/III) for the adsorption sites, and the precipitation of Cd(II) with reduced sulfur. This study indicates that reduced sulfur is a critical factor controlling the fate of Cd(II) immobilized on Mn oxides in the aquatic environment.
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Affiliation(s)
- Qian Sun
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, The Chinese Academy of Sciences, Nanjing 210008, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peixin Cui
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, The Chinese Academy of Sciences, Nanjing 210008, China
| | - Song Wu
- State Key Laboratory of Pollution Control and Resource Research, School of Environment, Nanjing University, Nanjing 210008, China
| | - Cun Liu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, The Chinese Academy of Sciences, Nanjing 210008, China
| | - Tingting Fan
- Ministry of Environmental Protection of the People's Republic of China, Nanjing Institute of Environmental Sciences, Nanjing 210008, China
| | - Marcelo Eduardo Alves
- Department of Exact Sciences "Luiz de Queiroz" Agricultural College, ESALQ/USP, Piracicaba, São Paulo 13418-900, Brazil
| | - Hu Cheng
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Meiying Huang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, The Chinese Academy of Sciences, Nanjing 210008, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dongmei Zhou
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, The Chinese Academy of Sciences, Nanjing 210008, China
| | - Yujun Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, The Chinese Academy of Sciences, Nanjing 210008, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Lange JL, Davey PRWJ, Ma MT, White JM, Morgenstern A, Bruchertseifer F, Blower PJ, Paterson BM. An octadentate bis(semicarbazone) macrocycle: a potential chelator for lead and bismuth radiopharmaceuticals. Dalton Trans 2020; 49:14962-14974. [PMID: 33079111 DOI: 10.1039/d0dt02673e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A variant of 1,4,7,10-tetraazacyclododecane (cyclen) bearing two semicarbazone pendant groups has been prepared. The octadentate ligand forms complexes with Bi3+ and Pb2+. X-ray crystallography showed that the neutral ligand provides an eight-coordinate environment for both metal ions and intermolecular hydrogen bond interactions have influenced the coordination environments of both complexes in the solid state. NMR spectroscopy revealed a fluxional environment for both complexes. The ligand was radiolabeled with the α-emitting radioactive isotope 213Bi3+, which is used in systemic targeted radiotherapy. The resulting complex was stable in serum for at least 90 min (two decay half-lives). The Pb2+ complex has reasonably fast kinetics of formation (t1/2 = 20 min) at 25 °C and pH 7.4. The Bi3+ and Pb2+ complexes show kinetic stability in 1.2 M HCl (half-lives of 214 min and 47 min, respectively). This is the first description of a macrocycle bearing semicarbazone pendant groups and its utility in coordinating main group metals, specifically those with radiotherapeutic potential.
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Affiliation(s)
- Jaclyn L Lange
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, London SE1 7EH, UK
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Priya T, Dhanalakshmi N, Thennarasu S, Pulikkutty S, Karthikeyan V, Thinakaran N. Synchronous detection of cadmium and lead in honey, cocos nucifera and egg white samples using multiwalled carbon nanotube/hyaluronic acid/amino acids nanocomposites. Food Chem 2020; 317:126430. [DOI: 10.1016/j.foodchem.2020.126430] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 01/13/2020] [Accepted: 02/17/2020] [Indexed: 12/07/2022]
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18
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Akhtar A, Kazi TG, Afridi HI, Baig JA, Arain MB. A tandem ionic liquid‐based dispersive microextraction method using in‐syringe air‐assisted vesicle system for rapid determination of lead and cadmium in artificial sweat extract of facial cosmetic products. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5784] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Asma Akhtar
- National Centre of Excellence in Analytical ChemistryUniversity of Sindh Jamshoro 76080 Pakistan
| | - Tasneem Gul Kazi
- National Centre of Excellence in Analytical ChemistryUniversity of Sindh Jamshoro 76080 Pakistan
| | - Hassan Imran Afridi
- National Centre of Excellence in Analytical ChemistryUniversity of Sindh Jamshoro 76080 Pakistan
| | - Jameel Ahmed Baig
- National Centre of Excellence in Analytical ChemistryUniversity of Sindh Jamshoro 76080 Pakistan
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Maity A, Sui X, Pu H, Bottum KJ, Jin B, Chang J, Zhou G, Lu G, Chen J. Sensitive field-effect transistor sensors with atomically thin black phosphorus nanosheets. NANOSCALE 2020; 12:1500-1512. [PMID: 31859311 DOI: 10.1039/c9nr09354k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Atomically thin black phosphorus (BP) field-effect transistors have excellent potential for sensing applications. However, commercial scaling of PFET sensors is still in the early stage due to various technical challenges, such as tedious fabrication, low response% caused by rapid oxidation, non-ideal response output (spike/bidirectional), and large device variation due to poor control over layer thickness among devices. Attempts have been made to address these issues. First, a theoretical model for response% dependence on the number of layers is developed to show the role of atomically thin BP for better responses. A position-tracked, selected-area-exfoliation method has been developed to rapidly produce thin BP layers with a narrow distribution (∼1-7 layers), which can harness excellent gate control over the PFET channel. The typical current on/off ratio is in the range of ∼300-500. The cysteine-modified Al2O3-gated PFET sensors show high responses (∼30-900%) toward a wide detection range (∼1-400 ppb) of lead ions in water with a typical response time of ∼10-30 s. A strategy to minimize device variation is proposed by correlating PFETs' on/off ratio with sensitivity parameters. The thickness variation of the gate oxide is investigated to explain non-ideal and ideal response transient kinetics.
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Affiliation(s)
- Arnab Maity
- Department of Mechanical Engineering, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA.
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Shaikh R, Kazi TG, Afridi HI, Akhtar A, Baig JA. An environmental friendly enrichment method for microextraction of cadmium and lead in groundwater samples: Impact on biological sample of children. CHEMOSPHERE 2019; 237:124444. [PMID: 31394437 DOI: 10.1016/j.chemosphere.2019.124444] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 07/01/2019] [Accepted: 07/23/2019] [Indexed: 06/10/2023]
Abstract
A novel ionic liquid-based vortex assisted dispersive liquid-liquid micro extraction procedure(IL-VADLLμE) was proposed for the enrichment of toxic metals, cadmium (Cd) and lead (Pb) in different types of water samples, domestic treated and groundwater (tube well and hand pump). Whereas, the concentration of both toxic metals was also determined in the scalp hair of children (age ranged 1-3 years), drinking contaminated groundwater termed as exposed group, whereas for comparative purposes scalp hair of age matched children consumed domestically treated water, named as non-exposed group. To preconcentrate the trace levels of Cd and Pb, a green chelating agent, l-cysteine (2-amino-3-sulfhydrylpropanoic acid) was used for complexation, an ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate [BMIM] [PF6] utilized as extractant and hexafluorophosphate ion (PF6-) as anion pairing agent, which facilitate the enrichment of hydrophobic complexes of analytes into the acceptor phase. Various operative features for the IL-VADLLμE method like pH of standards/samples, volume of ionic liquid and sample solution, concentration of ligand, ion pair reagent and ionic liquid, vortex and electrical shaking time (for comparative purpose), were thoroughly optimized. The projected method was effectively applicable to assess the Cd and Pb in trace level in real water sample (surface and groundwater) and scalp hair samples of children belongs to exposed and non-exposed areas. The high contents of both toxic metals in scalp hair samples of children consuming groundwater indicate that the adverse impacts of both toxic metals especially Pb on the general health as well as neuron and skeletal problem, from child hood.
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Affiliation(s)
- Rafia Shaikh
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan.
| | - Tasneem Gul Kazi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan.
| | - Hassan Imran Afridi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan.
| | - Asma Akhtar
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan.
| | - Jameel Ahmed Baig
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan.
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Hajipour AR, Khorsandi Z, Fatemeh Mohammadi Metkazini S. Palladium nanoparticles supported on cysteine-functionalized MNPs as robust recyclable catalysts for fast O- and N-arylation reactions in green media. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.05.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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22
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Comprehensive understanding of multiple binding of D-penicillamine with Cu2+-hexa aqua complex: a DFT approach. Struct Chem 2019. [DOI: 10.1007/s11224-019-01365-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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Huamani-Palomino RG, Jacinto CR, Alarcón H, Mejía IM, López RC, Silva DDO, Cavalheiro ET, Venâncio T, Dávalos JZ, Valderrama A. Chemical modification of alginate with cysteine and its application for the removal of Pb(II) from aqueous solutions. Int J Biol Macromol 2019; 129:1056-1068. [DOI: 10.1016/j.ijbiomac.2018.09.096] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 09/01/2018] [Accepted: 09/15/2018] [Indexed: 12/11/2022]
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24
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Ionic liquid/poly-l-cysteine composite deposited on flexible and hierarchical porous laser-engraved graphene electrode for high-performance electrochemical analysis of lead ion. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.10.176] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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25
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Enriquez Garcia A, Jalilehvand F, Niksirat P, Gelfand BS. Methionine Binding to Dirhodium(II) Tetraacetate. Inorg Chem 2018; 57:12787-12799. [PMID: 30247895 PMCID: PMC6311416 DOI: 10.1021/acs.inorgchem.8b01979] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction between antitumor active dirhodium(II) tetraacetate and dl-methionine (HMet) was followed in aqueous solution and showed initially mixtures of 1:1 and 1:2 adducts [Rh2(AcO)4(HMet)(H2O)] (AcO- = CH3COO-) and [Rh2(AcO)4(HMet)2] formed at room temperature (RT), as evidenced by UV-vis spectroscopy and electrospray ionization mass spectrometry (ESI-MS). Rh K-edge extended X-ray absorption fine structure (EXAFS) spectroscopy confirmed methionine thioether binding to the axial positions of the Rh2(AcO)4 cage structure. With excess HMet at RT, stepwise displacement of the acetate groups was observed after some time using ESI-MS. Heating the solution to 40° for 24 h accelerated the substitution reaction leading to stable dirhodium(II) species with two acetate ligands displaced by two methionine groups. The crystal structure of the purple [RhII2(AcO)2(d-Met)(l-Met)]·6H2O compound obtained from the solution revealed tridentate coordination of the methionine ligands to the Rh(II) ions, with the thioether S atoms in equatorial positions. A minor amount of a light orange monomeric [RhIII(Met)2](AcO) complex also formed in the solution was isolated by size exclusion chromatography and identified by ESI-MS. Crystals of [RhIII(d-Met)(l-Met)]Cl·3H2O were prepared by reacting RhCl3 and dl-HMet. The crystal structure showed tridentate binding of the methionine ligands to the Rh(III) ion in a trans-S, N, O arrangement.
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Affiliation(s)
| | - Farideh Jalilehvand
- Department of Chemistry , University of Calgary , Calgary , Alberta , Canada T2N 1N4
| | - Pantea Niksirat
- Department of Chemistry , University of Calgary , Calgary , Alberta , Canada T2N 1N4
| | - Benjamin S Gelfand
- Department of Chemistry , University of Calgary , Calgary , Alberta , Canada T2N 1N4
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26
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New Insights into the Configurations of Lead(II)-Benzohydroxamic Acid Coordination Compounds in Aqueous Solution: A Combined Experimental and Computational Study. MINERALS 2018. [DOI: 10.3390/min8090368] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Novel collector lead(II)-benzohydroxamic acid (Pb(II)–BHA) complexes in aqueous solution were characterized by using experimental approaches, including Ultraviolet-visible (UV-Vis) spectroscopy and electrospray ionization-mass spectrometry (ESI-MS), as well as first-principle density functional theory (DFT) calculations with consideration for solvation effects. The Job plot delineated that a single coordinated Pb(BHA)+ should be formed first, and that the higher coordination number complexes can be formed subsequently. Moreover, the Pb(II)–BHA species can aggregate with each other to form complicated structures, such as Pb(BHA)2 or highly complicated complexes. ESI-MS results validated the existence of Pb-(BHA)n=1,2 under different solution pH values. Further, the first-principles calculations suggested that Pb(BHA)+ should be the most stable structure, and the Pb atom in Pb(BHA)+ will act as an active site to attack nucleophiles. These findings are meaningful to further illustrate the adsorption mechanism of Pb(II)–BHA complexes, and are helpful for developing new reagents in mineral processing.
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Bukonjić AM, Tomović DL, Stanković AS, Jevtić VV, Ratković ZR, Bogojeski JV, Milovanović JZ, Đorđević DB, Arsenijević AN, Milovanović MZ, Potočňák I, Trifunović SR, Radić GP. Synthesis, characterization and biological activity of copper(II) complexes with ligands derived from β-amino acids. TRANSIT METAL CHEM 2018. [DOI: 10.1007/s11243-018-0270-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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28
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Inoue K, Aikawa S, Fukushima Y. Colorimetric chemosensor based on a carminic acid and Pb2+ complex for selective detection of cysteine over homocysteine and glutathione in aqueous solution. J INCL PHENOM MACRO 2017. [DOI: 10.1007/s10847-017-0772-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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29
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Jalilehvand F, Enriquez Garcia A, Niksirat P. Reactions of Antitumor Active Dirhodium(II) Tetraacetate Rh 2(CH 3COO) 4 with Cysteine and Its Derivatives. ACS OMEGA 2017; 2:6174-6186. [PMID: 31457864 PMCID: PMC6644637 DOI: 10.1021/acsomega.7b01090] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 08/21/2017] [Indexed: 05/10/2023]
Abstract
We have combined results from several spectroscopic techniques to investigate the aerobic reactions of Rh2(AcO)4 (AcO- = CH3COO-) with l-cysteine (H2Cys) and its derivatives d-penicillamine (3,3'-dimethylcysteine, H2Pen), with steric hindrance at the thiol group, and N-acetyl-l-cysteine (H2NAC), with its amino group blocked. Previous investigations have shown that antitumor active dirhodium(II) carboxylates may irreversibly inhibit enzymes containing a thiol group at or near their active sites. Also, cysteine, the only thiol-containing proteinogenic amino acid, interacts in vivo with this class of antitumor compounds, but structural information on the products of such reactions is lacking. In the present study, the reactions of Rh2(AcO)4 and H2L were carried out in aqueous solutions at the pH of mixing (acidic) and at physiological pH, using the different mole ratios 1:2, 1:4, and 1:6, which resulted in the same products in increasing yields. Electrospray ionization mass spectrometry (ESI-MS) indicates formation of dimeric [RhIII 2Pen4]2- or oligomeric {RhIII 2L4} n (L = Cys, NAC) complexes with bridging thiolate groups. Analyses of Rh K edge extended X-ray absorption fine structure (EXAFS) data reveal 3-4 Rh-S and 2-3 Rh-(N/O) bonds around six-coordinated Rh(III) ions at mean distances of 2.33 ± 0.02 and 2.09 ± 0.02 Å, respectively. In the N-acetyl-l-cysteine compound, the RhIII···RhIII distance 3.10 ± 0.02 Å obtained from the EXAFS spectrum supports trithiolate bridges between the Rh(III) ions, as was also found when using glutathione as ligand. In the cysteine and penicillamine complexes, double thiolate bridges join the Rh(III) ions, with the nonbridging Cys2- and Pen2- ligands in tridentate chelating (S,N,O) mode, which is consistent with the ΔδC = 7.3-8.4 ppm shift of the COO- signal in their carbon-13 cross polarization magic angle spinning (CPMAS) NMR spectra. For the penicillamine complex, the 2475.6 eV peak in its S K edge X-ray absorption near edge structure (XANES) spectrum shows partial oxidation, probably caused by peroxide generated from reduction of dissolved O2, of thiolato to sulfenato (S=O) groups, which were also identified by ESI-MS for all three {RhIII 2L4} n compounds.
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Affiliation(s)
- Farideh Jalilehvand
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Alejandra Enriquez Garcia
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Pantea Niksirat
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
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30
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Cangelosi V, Ruckthong L, Pecoraro VL. Lead(II) Binding in Natural and Artificial Proteins. Met Ions Life Sci 2017; 17:/books/9783110434330/9783110434330-010/9783110434330-010.xml. [PMID: 28731303 PMCID: PMC5771651 DOI: 10.1515/9783110434330-010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
This article describes recent attempts to understand the biological chemistry of lead using a synthetic biology approach. Lead binds to a variety of different biomolecules ranging from enzymes to regulatory and signaling proteins to bone matrix. We have focused on the interactions of this element in thiolate-rich sites that are found in metalloregulatory proteins such as Pbr, Znt, and CadC and in enzymes such as δ-aminolevulinic acid dehydratase (ALAD). In these proteins, Pb(II) is often found as a homoleptic and hemidirectic Pb(II)(SR)3- complex. Using first principles of biophysics, we have developed relatively short peptides that can associate into three-stranded coiled coils (3SCCs), in which a cysteine group is incorporated into the hydrophobic core to generate a (cysteine)3 binding site. We describe how lead may be sequestered into these sites, the characteristic spectral features may be observed for such systems and we provide crystallographic insight on metal binding. The Pb(II)(SR)3- that is revealed within these α-helical assemblies forms a trigonal pyramidal structure (having an endo orientation) with distinct conformations than are also found in natural proteins (having an exo conformation). This structural insight, combined with 207Pb NMR spectroscopy, suggests that while Pb(II) prefers hemidirected Pb(II)(SR)3- scaffolds regardless of the protein fold, the way this is achieved within α-helical systems is different than in β-sheet or loop regions of proteins. These interactions between metal coordination preference and protein structural preference undoubtedly are exploited in natural systems to allow for protein conformation changes that define function. Thus, using a design approach that separates the numerous factors that lead to stable natural proteins allows us to extract fundamental concepts on how metals behave in biological systems.
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Dai F, Fan W, Yuan X, Huang Z, Wang Y, Xin X, Lin H, Zhang L, Wang R, Sun D. A non-interpenetrating lead-organic framework with large channels based on 1D tube-shaped SBUs. Chem Commun (Camb) 2017; 53:5694-5697. [DOI: 10.1039/c7cc02134h] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A 3D open MOF based on 1D infinite tube-shaped SBUs shows efficient adsorption of I2 and selective adsorption of some dyes containing the SO3− group.
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32
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Xu D, Jiao R, Sun Y, Sun D, Zhang X, Zeng S, Di Y. L-Cysteine-Assisted Synthesis of Urchin-Like γ-MnS and Its Lithium Storage Properties. NANOSCALE RESEARCH LETTERS 2016; 11:444. [PMID: 27699715 PMCID: PMC5047874 DOI: 10.1186/s11671-016-1664-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 09/26/2016] [Indexed: 05/28/2023]
Abstract
MnS has been attracting more and more attentions in the fields of lithium ion batteries (LIBs) because of its high energy density and low voltage potential. In this paper, we present a simple method for the preparation of urchin-like γ-MnS microstructures using L-cysteine and MnCl2 · 4H2O as the starting materials. The urchin-like γ-MnS microstructures exhibit excellent cycling stability (823.4 mA h g-1 at a current density of 500 mA g-1, after 1000 cycles). And the discharge voltage is about 0.75 V, making it a good candidate for the application as the anode material in LIBs. SEM, TEM, and XRD were employed to inspect the changes of the active materials during the electrochemical process, which clearly indicate that the structural pulverization and reformation of the γ-MnS microstructures play important roles for the maintenance of the electrochemical performance during the charge/discharge process.
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Affiliation(s)
- Dan Xu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Ranran Jiao
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Yuanwei Sun
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Dezhi Sun
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Xianxi Zhang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Suyuan Zeng
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China.
| | - Youying Di
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China.
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Sisombath NS, Jalilehvand F. Similarities between N-Acetylcysteine and Glutathione in Binding to Lead(II) Ions. Chem Res Toxicol 2015; 28:2313-24. [PMID: 26624959 DOI: 10.1021/acs.chemrestox.5b00323] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
N-Acetylcysteine is a natural thiol-containing antioxidant, a precursor for cysteine and glutathione, and a potential detoxifying agent for heavy metal ions. However, previous accounts of the efficiency of N-acetylcysteine (H2NAC) in excretion of lead are few and contradicting. Here, we report results on the nature of lead(II) complexes formed with N-acetylcysteine in aqueous solution, which were obtained by combining information from several spectroscopic methods, including (207)Pb, (13)C, and (1)H NMR, Pb LIII-edge X-ray absorption, ultraviolet-visible (UV-vis) spectroscopy, and electro-spray ionization mass spectrometry (ESI-MS). Two series of solutions were used containing CPb(II) = 10 and 100 mM, respectively, varying the H2NAC/Pb(II) mole ratios from 2.1 to 10.0 at pH 9.1-9.4. The coordination environments obtained resemble those previously found for the Pb(II) glutathione system: at a ligand-to-lead mole ratio of 2.1, dimeric or oligomeric Pb(II) N-acetylcysteine complexes are formed, while a trithiolate [Pb(NAC)3](4-) complex dominates in solutions with H2NAC/Pb(II) mole ratios >3.0.
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Affiliation(s)
- Natalie S Sisombath
- Department of Chemistry, University of Calgary , 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Farideh Jalilehvand
- Department of Chemistry, University of Calgary , 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
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Khalafi-Nezhad A, Nourisefat M, Panahi F. l-Cysteine functionalized magnetic nanoparticles (LCMNP): a novel magnetically separable organocatalyst for one-pot synthesis of 2-amino-4H-chromene-3-carbonitriles in water. Org Biomol Chem 2015; 13:7772-9. [DOI: 10.1039/c5ob01030f] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Magnetic nanoparticles were functionalized with l-cysteine using a new and efficient method and introduced as a novel magnetically separable organocatalyst.
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Affiliation(s)
| | - Maryam Nourisefat
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz
- Iran
| | - Farhad Panahi
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz
- Iran
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