M. Andrea Molina Torres, , , Janet de los Angeles Chinellato Díaz, , , Facundo Mattea, , , Marcelo R. Romero*, , and , Natalia L. Pacioni*,
{"title":"罗丹明6G与可生物降解聚乳酸纳米粒子的相互作用：一种检测水中纳米塑料的合适分析策略","authors":"M. Andrea Molina Torres, , , Janet de los Angeles Chinellato Díaz, , , Facundo Mattea, , , Marcelo R. Romero*, , and , Natalia L. Pacioni*, ","doi":"10.1021/acsapm.5c02021","DOIUrl":null,"url":null,"abstract":"<p >Poly(lactic acid) nanoparticles (PLA-NP) with an average size of 70 nm, effectively quench the fluorescence emission of rhodamine 6G via static quenching. This process occurs as a result of forming a nonfluorescent complex in the ground state. The determined Stern–Volmer constant depends on the incubation time, being 1.88 times more sensitive at 5 min compared to 1 min, attributed to conformational changes after the rhodamine binds to the nanoparticle surface. The decrease in the fluorescence signal was employed as the analytical strategy for detecting and quantifying PLA-NP in aqueous systems, achieving a limit of detection of 26.5 pM. The accuracy of the determination was demonstrated with 95% confidence by recovery assays (90%–110%) in spiked samples of surface river water. This method represents a promising tool for researchers and environmental scientists dedicated to monitoring and mitigating water pollution caused by nanoplastics.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 18","pages":"12283–12290"},"PeriodicalIF":4.7000,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Interaction of Rhodamine 6G with Biodegradable Poly(lactic Acid) Nanoparticles: A Suitable Analytical Strategy for the Detection of Nanoplastics in Water\",\"authors\":\"M. Andrea Molina Torres, , , Janet de los Angeles Chinellato Díaz, , , Facundo Mattea, , , Marcelo R. Romero*, , and , Natalia L. Pacioni*, \",\"doi\":\"10.1021/acsapm.5c02021\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Poly(lactic acid) nanoparticles (PLA-NP) with an average size of 70 nm, effectively quench the fluorescence emission of rhodamine 6G via static quenching. This process occurs as a result of forming a nonfluorescent complex in the ground state. The determined Stern–Volmer constant depends on the incubation time, being 1.88 times more sensitive at 5 min compared to 1 min, attributed to conformational changes after the rhodamine binds to the nanoparticle surface. The decrease in the fluorescence signal was employed as the analytical strategy for detecting and quantifying PLA-NP in aqueous systems, achieving a limit of detection of 26.5 pM. The accuracy of the determination was demonstrated with 95% confidence by recovery assays (90%–110%) in spiked samples of surface river water. This method represents a promising tool for researchers and environmental scientists dedicated to monitoring and mitigating water pollution caused by nanoplastics.</p>\",\"PeriodicalId\":7,\"journal\":{\"name\":\"ACS Applied Polymer Materials\",\"volume\":\"7 18\",\"pages\":\"12283–12290\"},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2025-09-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Applied Polymer Materials\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acsapm.5c02021\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Polymer Materials","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsapm.5c02021","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Interaction of Rhodamine 6G with Biodegradable Poly(lactic Acid) Nanoparticles: A Suitable Analytical Strategy for the Detection of Nanoplastics in Water
Poly(lactic acid) nanoparticles (PLA-NP) with an average size of 70 nm, effectively quench the fluorescence emission of rhodamine 6G via static quenching. This process occurs as a result of forming a nonfluorescent complex in the ground state. The determined Stern–Volmer constant depends on the incubation time, being 1.88 times more sensitive at 5 min compared to 1 min, attributed to conformational changes after the rhodamine binds to the nanoparticle surface. The decrease in the fluorescence signal was employed as the analytical strategy for detecting and quantifying PLA-NP in aqueous systems, achieving a limit of detection of 26.5 pM. The accuracy of the determination was demonstrated with 95% confidence by recovery assays (90%–110%) in spiked samples of surface river water. This method represents a promising tool for researchers and environmental scientists dedicated to monitoring and mitigating water pollution caused by nanoplastics.
期刊介绍：
ACS Applied Polymer Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics, and biology relevant to applications of polymers.
The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates fundamental knowledge in the areas of materials, engineering, physics, bioscience, polymer science and chemistry into important polymer applications. The journal is specifically interested in work that addresses relationships among structure, processing, morphology, chemistry, properties, and function as well as work that provide insights into mechanisms critical to the performance of the polymer for applications.
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