1
|
Etkind SI, Vander Griend DA, Swager TM. Electroactive Anion Receptor with High Affinity for Arsenate. J Org Chem 2020; 85:10050-10061. [PMID: 32790360 DOI: 10.1021/acs.joc.0c01206] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Herein, we present the synthesis and characterization of a macrocyclic polyamide cage that incorporates redox-active 1,4-dithiin units. UV/vis titration experiments with eight anions in acetonitrile revealed high affinity for H2AsO4- (log β2 = 10.4-0.4+0.4) and HCO3- (log β2 = 8.3-0.4+0.3) over other common anionic guests, such as Cl- (log K1:1 = 3.20-0.02+0.03), HSO4- (log K1:1 = 3.57-0.03+0.02), and H2PO4- (log K1:1 = 4.24-0.04+0.05), by the selective formation of HG2 complexes. The recognition of arsenate over phosphate is rare among both proteins and synthetic receptors, and though the origin of selectivity is not known, exploiting the difference in the binding stoichiometry represents an underexplored avenue toward developing receptors that can differentiate between the two anions. Additional analysis by 1H NMR in 1:3 CD2Cl2/MeCN-d3 found a strong dependence of anion binding stoichiometry with the solvent employed. Finally, titration experiments with cyclic voltammetry provided varying and complex responses for each anion tested, though reaction between the anion and receptors was observed in most cases. These results implicate 1,4-dithiins as interesting recognition moieties in the construction of supramolecular receptors.
Collapse
Affiliation(s)
- Samuel I Etkind
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Douglas A Vander Griend
- Department of Chemistry and Biochemistry, Calvin University, Grand Rapids, Michigan 49546, United States
| | - Timothy M Swager
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
2
|
Mekjinda N, Phunnarungsi S, Ruangpornvisuti V, Ritchie RJ, Hamachi I, Ojida A, Wongkongkatep J. Masking Phosphate with Rare-Earth Elements Enables Selective Detection of Arsenate by Dipycolylamine-Zn II Chemosensor. Sci Rep 2020; 10:2656. [PMID: 32060398 PMCID: PMC7021768 DOI: 10.1038/s41598-020-59585-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 02/03/2020] [Indexed: 11/08/2022] Open
Abstract
Functional reassessment of the phosphate-specific chemosensors revealed their potential as arsenate detectors. A series of dipicolylamine (Dpa)-ZnII chemosensors were screened, among which acridine Dpa-ZnII chemosensor showed the highest capability in sensing arsenate. The presence of excess ZnII improved sensitivity and strengthened the binding between acridine Dpa-ZnII complex to arsenate as well as phosphate. However, due to their response to phosphate, these sensors are not suited for arsenate detection when phosphate is also present. This study demonstrated for the first time that rare-earth elements could effectively mask phosphate, allowing the specific fluorescence detection of arsenate in phosphate-arsenate coexisting systems. In addition, detection of arsenate contamination in the real river water samples and soil samples was performed to prove its practical use. This sensor was further employed for the visualization of arsenate and phosphate uptake in vegetables and flowering plants for the first time, as well as in the evaluation of a potent inhibitor of arsenate/phosphate uptake.
Collapse
Affiliation(s)
- Nutsara Mekjinda
- Department of Biotechnology, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok, 10400, Thailand
| | - Supho Phunnarungsi
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok, 10330, Thailand
| | - Vithaya Ruangpornvisuti
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok, 10330, Thailand
| | - Raymond J Ritchie
- Tropical Plant Biology, Faculty of Technology and Environment, Prince of Songkla University Phuket, Vichitsongkram Road, Kathu, Phuket, 83120, Thailand
| | - Itaru Hamachi
- Department of Synthetic Chemistry and Biological Chemistry, Faculty of Engineering, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| | - Akio Ojida
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Jirarut Wongkongkatep
- Department of Biotechnology, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok, 10400, Thailand.
| |
Collapse
|
3
|
Bradham KD, Diamond GL, Burgess M, Juhasz A, Klotzbach JM, Maddaloni M, Nelson C, Scheckel K, Serda SM, Stifelman M, Thomas DJ. In vivo and in vitro methods for evaluating soil arsenic bioavailability: relevant to human health risk assessment. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2018; 21:83-114. [PMID: 29553912 PMCID: PMC9347188 DOI: 10.1080/10937404.2018.1440902] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Arsenic (As) is the most frequently occurring contaminant on the priority list of hazardous substances, which lists substances of greatest public health concern to people living at or near U.S. National Priorities List site. Accurate assessment of human health risks from exposure to As-contaminated soils depends on estimating its bioavailability, defined as the fraction of ingested As absorbed across the gastrointestinal barrier and available for systemic distribution and metabolism. Arsenic bioavailability varies among soils and is influenced by site-specific soil physical and chemical characteristics and internal biological factors. This review describes the state-of-the science that supports our understanding of oral bioavailability of soil As, the methods that are currently being explored for estimating soil As relative bioavailability (RBA), and future research areas that could improve our prediction of the oral RBA of soil As in humans. The following topics are addressed: (1) As soil geochemistry; (2) As toxicology; (3) in vivo models for estimating As RBA; (4) in vitro bioaccessibility methods; and (5) conclusions and research needs.
Collapse
Affiliation(s)
- Karen D Bradham
- a Public Health Chemistry Branch, Exposure Methods and Measurements Division, National Exposure Research Laboratory , Office of Research and Development, U.S. Environmental Protection Agency , Research Triangle Park , NC , USA
| | | | - Michele Burgess
- c Science Policy Branch, Office of Superfund Remediation and Technology Innovation, Office of Land and Emergency Management , US Environmental Protection Agency , Arlington , VA , USA
| | - Albert Juhasz
- d Future Industries Institute , University of South Australia , Adelaide , SA , Australia
| | | | - Mark Maddaloni
- e Region 2 , U.S. Environmental Protection Agency , New York , NY , USA
| | - Clay Nelson
- a Public Health Chemistry Branch, Exposure Methods and Measurements Division, National Exposure Research Laboratory , Office of Research and Development, U.S. Environmental Protection Agency , Research Triangle Park , NC , USA
| | - Kirk Scheckel
- f Land Remediation and Pollution Control Division, National Risk Management Research Laboratory , Office of Research and Development, U.S. Environmental Protection Agency , Cincinnati , Ohio
| | - Sophia M Serda
- g Region 9 , U.S. Environmental Protection Agency , San Francisco , CA , USA
| | - Marc Stifelman
- h Region 10 , U.S. Environmental Protection Agency , Seattle , WA , USA
| | - David J Thomas
- i Pharmacokinetics Branch, Integrated Systems Toxicology Division, National Health and Environmental Effects Research Laboratory , Office of Research and Development, U.S. Environmental Protection Agency , Research Triangle Park , NC , USA
| |
Collapse
|
4
|
Mezei G. Incarceration of one or two phosphate or arsenate species within nanojars, capped nanojars and nanohelicages: helical chirality from two closely-spaced, head-to-head PO4(3-) or AsO4(3-) ions. Chem Commun (Camb) 2016; 51:10341-4. [PMID: 25972272 DOI: 10.1039/c5cc03005f] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Unprecedentedly strong binding of HXO4(2-) and XO4(3-) ions (X = P or As) within self-assembled nanohosts with protein-like anion binding cavities is reported. One of the nanohosts binds two XO4(3-) ions at an unusually short distance, resulting in helical chirality.
Collapse
Affiliation(s)
- Gellert Mezei
- Department of Chemistry, Western Michigan University, Kalamazoo, Michigan, USA.
| |
Collapse
|
5
|
Svane S, Jørgensen TJD, McKenzie CJ, Kjeldsen F. Effect of Metals in Biomimetic Dimetal Complexes on Affinity and Gas-Phase Protection of Phosphate Esters. Anal Chem 2015; 87:7060-8. [DOI: 10.1021/acs.analchem.5b00257] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Simon Svane
- Department of Biochemistry
and Molecular Biology, and ‡Department of Physics, Chemistry
and Pharmacy, University of Southern Denmark, 5230, Odense M, Denmark
| | - Thomas J. D. Jørgensen
- Department of Biochemistry
and Molecular Biology, and ‡Department of Physics, Chemistry
and Pharmacy, University of Southern Denmark, 5230, Odense M, Denmark
| | - Christine J. McKenzie
- Department of Biochemistry
and Molecular Biology, and ‡Department of Physics, Chemistry
and Pharmacy, University of Southern Denmark, 5230, Odense M, Denmark
| | - Frank Kjeldsen
- Department of Biochemistry
and Molecular Biology, and ‡Department of Physics, Chemistry
and Pharmacy, University of Southern Denmark, 5230, Odense M, Denmark
| |
Collapse
|
6
|
Svane S, Kryuchkov F, Lennartson A, McKenzie CJ, Kjeldsen F. Overcoming the Instability of Gaseous Peptide Phosphate Ester Groups by Dimetal Protection. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
7
|
Svane S, Kryuchkov F, Lennartson A, McKenzie CJ, Kjeldsen F. Overcoming the instability of gaseous peptide phosphate ester groups by dimetal protection. Angew Chem Int Ed Engl 2012; 51:3216-9. [PMID: 22351305 DOI: 10.1002/anie.201108481] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Indexed: 01/25/2023]
Affiliation(s)
- Simon Svane
- Department of Physics, Chemistry and Pharmacy, Campusvej 55, 5230 Odense M, Denmark
| | | | | | | | | |
Collapse
|
8
|
Fabian WM, Raber G, Francesconi KA, Seidler-Egdal RK, McKenzie CJ. Selective binding by a divanadium complex of arsenate over phosphate: A computational study. COMPUT THEOR CHEM 2011. [DOI: 10.1016/j.comptc.2011.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|