{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T04:36:39Z","timestamp":1787027799418,"version":"build-2736575974"},"reference-count":37,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2023,6,2]],"date-time":"2023-06-02T00:00:00Z","timestamp":1685664000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Science Foundation of Hainan Province","award":["222RC552"],"award-info":[{"award-number":["222RC552"]}]},{"name":"Natural Science Foundation of Hainan Province","award":["820QN249"],"award-info":[{"award-number":["820QN249"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biosensors"],"abstract":"<jats:p>\u03b2-amyloid is an important pathological feature of Alzheimer\u2019s disease. Its abnormal production and aggregation in the patient\u2019s brain is an important basis for the early diagnosis and confirmation of Alzheimer\u2019s disease. In this study, a novel aggregation-induced emission fluorescent probe, PTPA-QM, was designed and synthesized based on pyridinyltriphenylamine and quinoline\u2013malononitrile. These molecules exhibit a donor\u2013donor\u2013\u03c0\u2013acceptor structure with a distorted intramolecular charge transfer feature. PTPA-QM displayed the advantages of good selectivity toward viscosity. The fluorescence intensity of PTPA-QM in 99% glycerol solution was 22-fold higher than that in pure DMSO. PTPA-QM has been confirmed to have excellent membrane permeability and low toxicity. More importantly, PTPA-QM exhibits a high affinity towards \u03b2-amyloid in brain sections of 5XFAD mice and classical inflammatory cognitive impairment mice. In conclusion, our work provides a promising tool for the detection of \u03b2-amyloid.<\/jats:p>","DOI":"10.3390\/bios13060610","type":"journal-article","created":{"date-parts":[[2023,6,2]],"date-time":"2023-06-02T10:08:41Z","timestamp":1685700521000},"page":"610","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["A Novel Aggregation-Induced Emission Fluorescent Probe for Detection of \u03b2-Amyloid Based on Pyridinyltriphenylamine and Quinoline\u2013Malononitrile"],"prefix":"10.3390","volume":"13","author":[{"given":"Yan","family":"Fang","sequence":"first","affiliation":[{"name":"Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qi","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenlong","family":"Xiang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2175-3154","authenticated-orcid":false,"given":"Guijin","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junjian","family":"Li","sequence":"additional","affiliation":[{"name":"Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,6,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Chen, S.-Q., Wang, Z.-S., Ma, Y.-X., Zhang, W., Lu, J.-L., Liang, Y.-R., and Zheng, X.-Q. 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