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Martínez A, Barbosa A. Chemical reactivity theory to analyze possible toxicity of microplastics: Polyethylene and polyester as examples. PLoS One 2024; 19:e0285515. [PMID: 38446761 PMCID: PMC10917325 DOI: 10.1371/journal.pone.0285515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 01/31/2024] [Indexed: 03/08/2024] Open
Abstract
Micro- and nanoplastics are widespread throughout the world. In particular, polyethylene (PE) and polyethylene terephthalate or polyester (PET) are two of the most common polymers, used as plastic bags and textiles. To analyze the toxicity of these two polymers, oligomers with different numbers of units were used as models. The use of oligomers as polymeric templates has been used previously with success. We started with the monomer and continued with different oligomers until the chain length was greater than two nm. According to the results of quantum chemistry, PET is a better oxidant than PE, since it is a better electron acceptor. Additionally, PET has negatively charged oxygen atoms and can promote stronger interactions than PE with other molecules. We found that PET forms stable complexes and can dissociate the guanine-cytosine nucleobase pair. This could affect DNA replication. These preliminary theoretical results may help elucidate the potential harm of micro- and nanoplastics.
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Affiliation(s)
- Ana Martínez
- Departamento de Materiales de Baja Dimensionalidad, Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, CDMX, México
| | - Andrés Barbosa
- Departamento de Ecología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), Madrid, España
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Wang B, Zhou L, Liu X, Xu K, Wang Q. Prediction of superheat limit temperatures for fuel mixtures using quantitative structure-property relationship model. J Loss Prev Process Ind 2020. [DOI: 10.1016/j.jlp.2020.104087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Wang B, Xu K, Wang Q. Prediction of upper flammability limits for fuel mixtures using quantitative structure–property relationship models. CHEM ENG COMMUN 2018. [DOI: 10.1080/00986445.2018.1483350] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Beibei Wang
- School of Resources and Civil Engineering, Northeastern University, Shenyang, China
- Department of Fire Protection & Safety, Oklahoma State University, Stillwater, OK, USA
| | - Kaili Xu
- School of Resources and Civil Engineering, Northeastern University, Shenyang, China
| | - Qingsheng Wang
- Department of Fire Protection & Safety, Oklahoma State University, Stillwater, OK, USA
- Department of Chemical Engineering, Oklahoma State University, Stillwater, OK, USA
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Wang B, Zhou L, Xu K, Wang Q. Fast prediction of minimum ignition energy from molecular structure using simple QSPR model. J Loss Prev Process Ind 2017. [DOI: 10.1016/j.jlp.2017.10.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Jiang W, Pan X, Hua M, Ni L, Jiang J. Research on thermal runaway process of styrene bulk polymerization. PROCESS SAFETY PROGRESS 2017. [DOI: 10.1002/prs.11934] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Weibo Jiang
- Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control; Nanjing Tech University; Nanjing 210009 China
- College of Safety Science and Engineering; Nanjing Tech University; Nanjing 210009 China
| | - Xuhai Pan
- Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control; Nanjing Tech University; Nanjing 210009 China
- College of Safety Science and Engineering; Nanjing Tech University; Nanjing 210009 China
| | - Min Hua
- Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control; Nanjing Tech University; Nanjing 210009 China
- College of Safety Science and Engineering; Nanjing Tech University; Nanjing 210009 China
| | - Lei Ni
- Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control; Nanjing Tech University; Nanjing 210009 China
- College of Safety Science and Engineering; Nanjing Tech University; Nanjing 210009 China
| | - Juncheng Jiang
- Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control; Nanjing Tech University; Nanjing 210009 China
- College of Safety Science and Engineering; Nanjing Tech University; Nanjing 210009 China
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Wang B, Zhou L, Xu K, Wang Q. Prediction of Minimum Ignition Energy from Molecular Structure Using Quantitative Structure–Property Relationship (QSPR) Models. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b04347] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Beibei Wang
- School
of Resources and Civil Engineering, Northeastern University, Shenyang, Liaoning 110819, China
- Department of Fire Protection & Safety, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Lulu Zhou
- Department of Fire Protection & Safety, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Kaili Xu
- School
of Resources and Civil Engineering, Northeastern University, Shenyang, Liaoning 110819, China
| | - Qingsheng Wang
- Department of Fire Protection & Safety, Oklahoma State University, Stillwater, Oklahoma 74078, United States
- Department
of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
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Narayan A, Wang B, Nava Medina IB, Mannan MS, Cheng Z, Wang Q. Prediction of heat of formation for exo -Dicyclopentadiene. J Loss Prev Process Ind 2016. [DOI: 10.1016/j.jlp.2016.10.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Wang Q, Wei C, Pérez LM, Rogers WJ, Hall MB, Mannan MS. Thermal Decomposition Pathways of Hydroxylamine: Theoretical Investigation on the Initial Steps. J Phys Chem A 2010; 114:9262-9. [DOI: 10.1021/jp104144x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qingsheng Wang
- Mary Kay O’Connor Process Safety Center, Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, and Laboratory for Molecular Simulation, Texas A&M University, College Station, Texas 77842-3012
| | - Chunyang Wei
- Mary Kay O’Connor Process Safety Center, Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, and Laboratory for Molecular Simulation, Texas A&M University, College Station, Texas 77842-3012
| | - Lisa M. Pérez
- Mary Kay O’Connor Process Safety Center, Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, and Laboratory for Molecular Simulation, Texas A&M University, College Station, Texas 77842-3012
| | - William J. Rogers
- Mary Kay O’Connor Process Safety Center, Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, and Laboratory for Molecular Simulation, Texas A&M University, College Station, Texas 77842-3012
| | - Michael B. Hall
- Mary Kay O’Connor Process Safety Center, Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, and Laboratory for Molecular Simulation, Texas A&M University, College Station, Texas 77842-3012
| | - M. Sam Mannan
- Mary Kay O’Connor Process Safety Center, Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, and Laboratory for Molecular Simulation, Texas A&M University, College Station, Texas 77842-3012
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Crowley JD, Hänni KD, Leigh DA, Slawin AMZ. Diels-Alder active-template synthesis of rotaxanes and metal-ion-switchable molecular shuttles. J Am Chem Soc 2010; 132:5309-14. [PMID: 20334379 DOI: 10.1021/ja101029u] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A synthesis of [2]rotaxanes in which Zn(II) or Cu(II) Lewis acids catalyze a Diels-Alder cycloaddition to form the axle while simultaneously acting as the template for the assembly of the interlocked molecules is described. Coordination of the Lewis acid to a multidentate endotopic 2,6-di(methyleneoxymethyl)pyridyl- or bipyridine-containing macrocycle orients a chelated dienophile through the macrocycle cavity. Lewis acid activation of the double bond causes it to react with an incoming "stoppered" diene, affording the [2]rotaxane in up to 91% yield. Unusually for an active-template synthesis, the metal binding site "lives on" in these rotaxanes. This was exploited in the synthesis of a molecular shuttle containing two different ligating sites in which the position of the macrocycle could be switched by complexation with metal ions [Zn(II) and Pd(II)] with different preferred coordination geometries.
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Affiliation(s)
- James D Crowley
- School of Chemistry, University of Edinburgh, The King's Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
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