{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T20:44:55Z","timestamp":1791924295978,"version":"4.3.4"},"reference-count":33,"publisher":"American Chemical Society (ACS)","issue":"40","license":[{"start":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:00:00Z","timestamp":1790726400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"name":"Office of the Vice President for Research, a land grand university"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,10,13]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>A novel oxime-incorporated polydiacetylene-functionalized molecule (PCDA-OX) was synthesized for real-time, rapid, and selective detection of the organophosphate insecticide chlorpyrifos ethyl, which is widely used in agricultural fields globally. Nanocomposites containing PCDA-OX molecules were fabricated within a cellulose acetate matrix using an electrospinning technique, followed by chemical hydrolysis to obtain regenerated cellulose-based sensing materials. Comprehensive characterization was performed using scanning electron microscopy, nuclear magnetic resonance, Fourier-transform infrared spectroscopy, and an Instron tensile tester. Exposure to the chlorpyrifos ethyl triggered an instantaneous chromatic transition from blue to red\/pink, enabling naked eye detection without instrumentation. The proposed sensor exhibited high selectivity against other classes of insecticides and achieved a limit of detection of 40 mmol. The sensing platform offers a simple, rapid, and field-deployable approach for organophosphate monitoring, offering a promising strategy for protecting human health and saving lives.<\/jats:p>","DOI":"10.1021\/acsomega.6c04463","type":"journal-article","created":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T10:02:07Z","timestamp":1790762527000},"page":"60904-60913","source":"Crossref","is-referenced-by-count":0,"title":["Oxime-Functionalized\nPolydiacetylene Nanocomposite\nSensor for Equipment-Free On-Site Detection Of Organophosphate Insecticide\nChlorpyrifos Ethyl"],"prefix":"10.1021","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3629-2669","authenticated-orcid":true,"given":"AKM Mashud","family":"Alam","sequence":"first","affiliation":[{"name":"Iowa State University , , , ,","place":["Ames, Iowa, United States, 50011"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Demetrius A.","family":"Finley","sequence":"additional","affiliation":[{"name":"Iowa State University , , , ,","place":["Ames, Iowa, United States, 50011"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3037-8413","authenticated-orcid":true,"given":"George A.","family":"Kraus","sequence":"additional","affiliation":[{"name":"Iowa State University , , , ,","place":["Ames, Iowa, United States, 50011"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8570-1863","authenticated-orcid":true,"given":"Chunhui","family":"Xiang","sequence":"additional","affiliation":[{"name":"Iowa State University , , , ,","place":["Ames, Iowa, United States, 50011"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,9,30]]},"reference":[{"issue":"12","key":"2026101315102706500_cit1","doi-asserted-by":"publisher","DOI":"10.3390\/s18124302","article-title":"A simple colorimetric and fluorescent sensor to detect\norganophosphate pesticides based on adenosine triphosphate-modified\ngold nanoparticles","volume":"18","author":"Li","year":"2018","journal-title":"Sensors"},{"key":"2026101315102706500_cit2","first-page":"11","article-title":"Acute occupational pesticide-related\nillness and injury -United States,\n2007\u20132011","volume-title":"Morbidity and Mortality\nWeekly Report","author":"Calvert","year":"2016"},{"key":"2026101315102706500_cit3","doi-asserted-by":"publisher","first-page":"274","DOI":"10.1016\/j.lfs.2015.10.013","article-title":"Occupational pesticide\nexposure and adverse health effects at the clinical, hematological\nand biochemical level","volume":"145","author":"Garci\u0301a-Garci\u0301a","year":"2016","journal-title":"Life Sci."},{"issue":"55","key":"2026101315102706500_cit4","doi-asserted-by":"publisher","first-page":"5","DOI":"10.15585\/mmwr.mm6355a2","article-title":"Acute Nonoccupational\nPesticide-Related Illness and Injury - United States, 2007\u20132011","volume":"63","author":"Namulanda","year":"2016","journal-title":"MMWR. 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