{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T12:26:29Z","timestamp":1787574389291,"version":"build-2736575974"},"reference-count":41,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T00:00:00Z","timestamp":1787529600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006769","name":"Russian Science Foundation","doi-asserted-by":"publisher","award":["25-73-30016"],"award-info":[{"award-number":["25-73-30016"]}],"id":[{"id":"10.13039\/501100006769","id-type":"DOI","asserted-by":"publisher"}]},{"award":["25-73-30016"],"award-info":[{"award-number":["25-73-30016"]}],"id":[{"id":"https:\/\/ror.org\/03y2gwe85","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The remote detection of nitro compounds typically requires complex analytical procedures and expensive instrumentation, often resulting in prolonged analysis times. Fluorescence-based methods, which exploit the quenching of organic fluorophores in the presence of nitro analytes, offer a more practical and efficient alternative. Particularly promising is the use of excimer emission generated by bis-pyrene species (bis-Pyr), formed either through supramolecular interactions or covalent linkages. Regarding the latter, the integration of covalently linked bis-Pyr sensors onto polymer backbones, such as commercially available polyvinyl chloride (PVC), represents a highly attractive strategy. In this manuscript, we wish to report our recent findings on the mechanosynthesis of bis-pyrene-based PVC-supported chemosensors, and on studies of its fluorescence response towards common nitro-compound\/explosive components, such as 2,4-dinitrotoluene (DNT), 2,4,6-trinitrotoluene (TNT), taggant 2,3-dimethyl-2,3-dinitrobutane (DMDNB), pentaerythritol tetranitrate (PETN) and 2,4,6-trinitrophenol (picric acid, PA). For DNT, a selective fluorescence \u201cturn-off\u201d response was observed with a Stern\u2013Volmer quenching constant as high as 1.15 \u00d7 104 M\u22121.<\/jats:p>","DOI":"10.3390\/s26175342","type":"journal-article","created":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T11:47:19Z","timestamp":1787572039000},"page":"5342","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Bis-Pyrene-Appended Polyvinyl Chloride: Mechanosynthesis and Nitro-Explosive Detection"],"prefix":"10.3390","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6268-4669","authenticated-orcid":false,"given":"Vadim A.","family":"Platonov","sequence":"first","affiliation":[{"name":"Institute of Chemical Engineering, Ural Federal University, 19, Mira Str., Yekaterinburg 620002, Russia"},{"name":"I. Ya. Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22\/20, S. Kovalevskoy\/Akademicheskaya Str., Yekaterinburg 620137, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5296-3525","authenticated-orcid":false,"given":"Leila K.","family":"Sadieva","sequence":"additional","affiliation":[{"name":"Institute of Chemical Engineering, Ural Federal University, 19, Mira Str., Yekaterinburg 620002, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mikhail A.","family":"Makovskiy","sequence":"additional","affiliation":[{"name":"Institute of Chemical Engineering, Ural Federal University, 19, Mira Str., Yekaterinburg 620002, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7788-5172","authenticated-orcid":false,"given":"Nikolay A.","family":"Belyaev","sequence":"additional","affiliation":[{"name":"Institute of Chemical Engineering, Ural Federal University, 19, Mira Str., Yekaterinburg 620002, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tatiana I.","family":"Shendrikova","sequence":"additional","affiliation":[{"name":"Institute of Chemical Engineering, Ural Federal University, 19, Mira Str., Yekaterinburg 620002, Russia"},{"name":"I. Ya. Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22\/20, S. Kovalevskoy\/Akademicheskaya Str., Yekaterinburg 620137, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Artem V.","family":"Baklykov","sequence":"additional","affiliation":[{"name":"Institute of Chemical Engineering, Ural Federal University, 19, Mira Str., Yekaterinburg 620002, Russia"},{"name":"I. Ya. Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22\/20, S. Kovalevskoy\/Akademicheskaya Str., Yekaterinburg 620137, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dmitry S.","family":"Kopchuk","sequence":"additional","affiliation":[{"name":"Institute of Chemical Engineering, Ural Federal University, 19, Mira Str., Yekaterinburg 620002, Russia"},{"name":"I. Ya. Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22\/20, S. Kovalevskoy\/Akademicheskaya Str., Yekaterinburg 620137, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0537-3274","authenticated-orcid":false,"given":"Igor S.","family":"Kovalev","sequence":"additional","affiliation":[{"name":"Institute of Chemical Engineering, Ural Federal University, 19, Mira Str., Yekaterinburg 620002, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Grigory V.","family":"Zyryanov","sequence":"additional","affiliation":[{"name":"Institute of Chemical Engineering, Ural Federal University, 19, Mira Str., Yekaterinburg 620002, Russia"},{"name":"I. Ya. Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22\/20, S. Kovalevskoy\/Akademicheskaya Str., Yekaterinburg 620137, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9140-358X","authenticated-orcid":false,"given":"Valeriy N.","family":"Charushin","sequence":"additional","affiliation":[{"name":"Institute of Chemical Engineering, Ural Federal University, 19, Mira Str., Yekaterinburg 620002, Russia"},{"name":"I. Ya. Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22\/20, S. Kovalevskoy\/Akademicheskaya Str., Yekaterinburg 620137, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,8,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1174","DOI":"10.1007\/s11172-021-3201-8","article-title":"Pyrene-1-Carboxylic Acid Polyethylene Glycol Esters: Synthesis and Photophysical Studies","volume":"70","author":"Sadieva","year":"2021","journal-title":"Russ. Chem. Bull."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"3633","DOI":"10.1007\/s11164-022-04778-7","article-title":"Occurrence, Analysis and Removal of Pesticides, Hormones, Pharmaceuticals, and Other Contaminants in Soil and Water Streams for the Past Two Decades: A Review","volume":"48","author":"Kanan","year":"2022","journal-title":"Res. Chem. Intermed."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Zhang, W., Tang, Y., Shi, A., Bao, L., Shen, Y., Shen, R., and Ye, Y. (2018). Recent Developments in Spectroscopic Techniques for the Detection of Explosives. Materials, 11.","DOI":"10.3390\/ma11081364"},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Augustyniak, D., and Szala, M. (2025). Field Explosives Detectors\u2014Current Status and Development Prospects. Sensors, 25.","DOI":"10.3390\/s25196024"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"2173","DOI":"10.1039\/D0QM01008A","article-title":"A Brief Review on Novel Pyrene Based Fluorometric and Colorimetric Chemosensors for the Detection of Cu2+","volume":"5","author":"Kowser","year":"2021","journal-title":"Mater. Chem. Front."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"17","DOI":"10.1111\/j.1751-1097.1982.tb03805.x","article-title":"The Py Scale of Solvent Polarities. Solvent Effects on the Vibronic Fine Structure of Pyrene Fluorescence and Empirical Correlations with et and Y Values","volume":"35","author":"Dong","year":"1982","journal-title":"Photochem. Photobiol."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"151","DOI":"10.1016\/1010-6030(93)01011-P","article-title":"Solvatochromic Shifts of Naphthalene and Pyrene Excimers","volume":"80","author":"Castanheira","year":"1994","journal-title":"J. Photochem. Photobiol. A Chem."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"9736","DOI":"10.1002\/chem.201702281","article-title":"The Effect of Solution Conditions on the Driving Forces for Self-Assembly of a Pyrene Molecule","volume":"23","author":"Shi","year":"2017","journal-title":"Chem. A Eur. J."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"111014","DOI":"10.1016\/j.dyepig.2022.111014","article-title":"Bola-Type PEG-Linked Polyaromatic Hydrocarbon-Based Chemosensors for the \u201cTurn-off\u201d Excimer Fluorescence Detection of Nitro-Analytes\/Explosives in Aqueous Solutions","volume":"210","author":"Sadieva","year":"2023","journal-title":"Dye. Pigment."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"725","DOI":"10.1038\/192725a0","article-title":"Evidence for the Photo-Association of Aromatic Hydrocarbons in Fluid Media","volume":"192","author":"Stevens","year":"1961","journal-title":"Nature"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"13983","DOI":"10.1039\/C4TA02766C","article-title":"Fluorescent Polymeric Ionic Liquids for the Detection of Nitroaromatic Explosives","volume":"2","author":"Shaligram","year":"2014","journal-title":"J. Mater. Chem. A"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"13189","DOI":"10.1021\/acsami.5b03655","article-title":"Fundamental Study of Electrospun Pyrene-Polyethersulfone Nanofibers Using Mixed Solvents for Sensitive and Selective Explosives Detection in Aqueous Solution","volume":"7","author":"Sun","year":"2015","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"2792","DOI":"10.1016\/j.polymer.2014.04.028","article-title":"TButyl Pyrene Containing Poly(Arylene Ethynylene)s for Highly Sensitive and Selective Sensing of TNT","volume":"55","author":"Jagtap","year":"2014","journal-title":"Polymer"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"122908","DOI":"10.1016\/j.saa.2023.122908","article-title":"Natural Protoberberine Alkaloid\u2013Montmorillonite Nanocomposite Powders with AIE Features for Visualizing High-Resolution Latent Fingerprints","volume":"300","author":"Ni","year":"2023","journal-title":"Spectrochim. Acta Part A Mol. Biomol. Spectrosc."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"113466","DOI":"10.1016\/j.jphotochem.2021.113466","article-title":"Bola-Type PAH-Based Fluorophores\/Chemosensors: Synthesis via an Unusual Clemmensen Reduction and Photophysical Studies","volume":"420","author":"Kovalev","year":"2021","journal-title":"J. Photochem. Photobiol. A Chem."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"2965","DOI":"10.1016\/j.jclepro.2016.10.171","article-title":"Life Cycle Assessment of Polyvinyl Chloride Production and Its Recyclability in China","volume":"142","author":"Ye","year":"2017","journal-title":"J. Clean. Prod."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"382","DOI":"10.1038\/s40494-025-01955-w","article-title":"Poly(Vinyl Chloride) Degradation: Identification of Acidic Degradation Products, Their Emission Rates, and Implications for Heritage Collections","volume":"13","author":"Pok","year":"2025","journal-title":"npj Herit. Sci."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"6971","DOI":"10.1039\/D3GC02585C","article-title":"An Overview on the Recycling of Waste Poly(Vinyl Chloride)","volume":"25","author":"Jiang","year":"2023","journal-title":"Green Chem."},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Chidara, A., Cheng, K., and Gallear, D. (2025). Engineering Innovations for Polyvinyl Chloride (PVC) Recycling: A Systematic Review of Advances, Challenges, and Future Directions in Circular Economy Integration. Machines, 13.","DOI":"10.3390\/machines13050362"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1256","DOI":"10.1038\/s41467-025-68032-5","article-title":"Recycling of Polyolefins Using Recycled PVC under Sunlight","volume":"17","author":"Liu","year":"2026","journal-title":"Nat. Commun."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"303","DOI":"10.1016\/j.progpolymsci.2009.12.001","article-title":"Chemical Modification of Poly(Vinyl Chloride)-Still on the Run","volume":"35","author":"Moulay","year":"2010","journal-title":"Prog. Polym. Sci."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"9789","DOI":"10.15826\/chimtech.9789","article-title":"Study on Lawsone Derivatives and PVC-Modified with Lawsone Moieties as Chemosensors for the Detection of Nitro-Explosives as Well as Fe3+","volume":"13","author":"Altobee","year":"2026","journal-title":"Chim. Techno Acta"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"772","DOI":"10.1016\/j.talanta.2008.12.042","article-title":"Selective Spectrophotometric Determination of TNT Using a Dicyclohexylamine-Based Colorimetric Sensor","volume":"78","author":"Apak","year":"2009","journal-title":"Talanta"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"463","DOI":"10.1016\/j.snb.2017.06.030","article-title":"Selective Pre and Post Blast Trinitrotoluene Detection with a Novel Ethylenediamine Entrapped Thin Polymer Film and Digital Image Colorimetry","volume":"252","author":"Choodum","year":"2017","journal-title":"Sens. Actuators B Chem."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"21","DOI":"10.4103\/2229-5186.79345","article-title":"Methods for the Determination of Limit of Detection and Limit of Quantitation of the Analytical Methods","volume":"2","author":"Shrivastava","year":"2011","journal-title":"Chron. Young Sci."},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Lakowicz, J.R. (2006). Principles of Fluorescence Spectroscopy, Springer.","DOI":"10.1007\/978-0-387-46312-4"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"551","DOI":"10.1002\/open.201800098","article-title":"Study of the Room-Temperature Synthesis of Oxime Ethers by Using a Super Base","volume":"7","author":"Kosmalski","year":"2018","journal-title":"ChemistryOpen"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1524\/zpch.1976.101.1-6.267","article-title":"Intramolecular Excimers with \u03b1,\u03c9-Diarylalkanes","volume":"101","author":"Zachariasse","year":"1976","journal-title":"Z. Phys. Chem."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"10061","DOI":"10.1039\/C9CP00739C","article-title":"Kasha\u2019s Rule: A Reappraisal","volume":"21","year":"2019","journal-title":"Phys. Chem. Chem. Phys."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"2419","DOI":"10.1021\/la00007a018","article-title":"Intramolecular Pyrene Excimer in Probing the Sol-Gel Process","volume":"11","author":"Ilharco","year":"1995","journal-title":"Langmuir"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"4791","DOI":"10.1021\/acs.jpcc.9b09797","article-title":"FRET-Selective and Ion-Exchange Responsive Smart Nano-GUMBOS from Functionalized Pyrene: First Observation of Excited State Aggregation (Exciaggremer) Inside Crystalline Nanoball","volume":"124","author":"Pramanik","year":"2020","journal-title":"J. Phys. Chem. C"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"775","DOI":"10.1002\/asia.201501310","article-title":"Fluorescent Detection of 2,4-DNT and 2,4,6-TNT in Aqueous Media by Using Simple Water-Soluble Pyrene Derivatives","volume":"11","author":"Kovalev","year":"2016","journal-title":"Chem. Asian J."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"375","DOI":"10.1021\/je000300w","article-title":"Solubility of 2,4-Dinitrotoluene and 2,4,6-Trinitrotoluene in Water","volume":"46","author":"Phelan","year":"2001","journal-title":"J. Chem. Eng. Data"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"111238","DOI":"10.1016\/j.eurpolymj.2022.111238","article-title":"One Step Synthesis of Crosslinked Fluorescent Microspheres for the Effective and Selective Sensing of Explosives in Aqueous Media","volume":"172","author":"Akkoc","year":"2022","journal-title":"Eur. Polym. J."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"111613","DOI":"10.1016\/j.dyepig.2023.111613","article-title":"Aerobic Direct Arylation Polycondensation of N-Perylenyl Phenoxazine-Based Fluorescent Conjugated Polymers for Highly Sensitive and Selective TNT Explosives Detection","volume":"219","author":"Nguyen","year":"2023","journal-title":"Dye. Pigment."},{"key":"ref_36","doi-asserted-by":"crossref","unstructured":"\u00d6zt\u00fcrk, B.\u00d6., and \u015eehito\u011flu, S.K. (2019). Pyrene Substituted Amphiphilic ROMP Polymers as Nano-Sized Fluorescence Sensors for Detection of TNT in Water. Polymers, 183.","DOI":"10.1016\/j.polymer.2019.121868"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"1069","DOI":"10.1039\/C1JM14022A","article-title":"Single-Layer Assembly of Pyrene End-Capped Terthiophene and Its Sensing Performances to Nitroaromatic Explosives","volume":"22","author":"Liu","year":"2012","journal-title":"J. Mater. Chem."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"202","DOI":"10.1002\/pi.6116","article-title":"Synthesis, Characterization and Chemical Sensor Applications of Pyrene Side-Functional Polylactide Copolymers","volume":"70","author":"Doganci","year":"2021","journal-title":"Polym. Int."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"13662","DOI":"10.1002\/chem.201403345","article-title":"Explosives Sensing by Using Electron-Rich Supramolecular Polymers: Role of Intermolecular Hydrogen Bonding in Significant Enhancement of Sensitivity","volume":"20","author":"Gole","year":"2014","journal-title":"Chem. A Eur. J."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"4759","DOI":"10.1021\/ma200953s","article-title":"Pyrene-Containing Conjugated Polymer-Based Fluorescent Films for Highly Sensitive and Selective Sensing of TNT in Aqueous Medium","volume":"44","author":"He","year":"2011","journal-title":"Macromolecules"},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"2717","DOI":"10.1007\/s11172-023-4077-6","article-title":"Poly [4-(1\u2032-Pyrenyl)Styrene]: Synthesis, Photophysical Properties, and Practical Application as a Sensor for Nitroaromatic Explosives","volume":"72","author":"Zhilina","year":"2023","journal-title":"Russ. Chem. Bull."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/26\/17\/5342\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T11:57:12Z","timestamp":1787572632000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/26\/17\/5342"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8,24]]},"references-count":41,"journal-issue":{"issue":"17","published-online":{"date-parts":[[2026,9]]}},"alternative-id":["s26175342"],"URL":"https:\/\/doi.org\/10.3390\/s26175342","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,8,24]]}}}