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The structure, morphology, and pore characteristics of PTPEBP nanoparticles were characterized by FTIR, NMR, SEM, and nitrogen adsorption and desorption measurements. PTPEBP presents a spherical nanoparticle morphology with a particle size of 56 nm; the specific surface area is 69.1 m2\/g, and the distribution of the pore size is centered at about 2.5 nm. Due to the introduction of the tetraphenylethene unit, the fluorescence quantum yield of the PTPEBP nanoparticles reaches 8.14% in aqueous dispersion. Combining the porosity and nanoparticle morphology, the fluorescence sensing detection toward nitroaromatic explosives in the pure aqueous phase has been realized. The Stern\u2013Volmer quenching constant for 2,4,6-trinitrophenol (TNP) detection is 2.50 \u00d7 104 M\u22121, the limit of detection is 1.07 \u03bcM, and the limit of quantification is 3.57 \u03bcM. Importantly, the detection effect of PTPEBP nanoparticles toward TNP did not change significantly after adding other nitroaromatic compounds, indicating that the anti-interference and selectivity for TNP detection in aqueous media is remarkable. In addition, the spike recovery test demonstrates the potential of PTPEBP nanoparticles for detecting TNP in natural environmental water samples.<\/jats:p>","DOI":"10.3390\/ma16196458","type":"journal-article","created":{"date-parts":[[2023,9,28]],"date-time":"2023-09-28T07:50:26Z","timestamp":1695887426000},"page":"6458","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Tetraphenylethene-Based Cross-Linked Conjugated Polymer Nanoparticles for Efficient Detection of 2,4,6-Trinitrophenol in Aqueous Phase"],"prefix":"10.3390","volume":"16","author":[{"given":"Shengjie","family":"Li","sequence":"first","affiliation":[{"name":"School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tianwen","family":"Ouyang","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xue","family":"Guo","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenyue","family":"Dong","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China"},{"name":"Chongqing Research Institute, Changchun University of Science and Technology, Chongqing 401135, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhihua","family":"Ma","sequence":"additional","affiliation":[{"name":"Chongqing Research Institute, Changchun University of Science and Technology, Chongqing 401135, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Teng","family":"Fei","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,9,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"7236","DOI":"10.1021\/jp3121148","article-title":"Fluoranthene Based Derivatives for Detection of Trace Explosive Nitroaromatics","volume":"117","author":"Kumar","year":"2013","journal-title":"J. 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