{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,11]],"date-time":"2026-10-11T03:00:30Z","timestamp":1791687630893,"version":"4.3.4"},"reference-count":45,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2025,8,21]],"date-time":"2025-08-21T00:00:00Z","timestamp":1755734400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Science and Technology Development Program Project of Jilin Province","award":["20250602019RC"],"award-info":[{"award-number":["20250602019RC"]}]},{"name":"Science and Technology Development Program Project of Jilin Province","award":["JJKH20220334KJ"],"award-info":[{"award-number":["JJKH20220334KJ"]}]},{"name":"Science and Technology Development Program Project of Jilin Province","award":["3220152034"],"award-info":[{"award-number":["3220152034"]}]},{"name":"Science and Technology Project of the Education Department of Jilin Province","award":["20250602019RC"],"award-info":[{"award-number":["20250602019RC"]}]},{"name":"Science and Technology Project of the Education Department of Jilin Province","award":["JJKH20220334KJ"],"award-info":[{"award-number":["JJKH20220334KJ"]}]},{"name":"Science and Technology Project of the Education Department of Jilin Province","award":["3220152034"],"award-info":[{"award-number":["3220152034"]}]},{"name":"National Natural Science Foundation of China Youth Science Fund Project","award":["20250602019RC"],"award-info":[{"award-number":["20250602019RC"]}]},{"name":"National Natural Science Foundation of China Youth Science Fund Project","award":["JJKH20220334KJ"],"award-info":[{"award-number":["JJKH20220334KJ"]}]},{"name":"National Natural Science Foundation of China Youth Science Fund Project","award":["3220152034"],"award-info":[{"award-number":["3220152034"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biomimetics"],"abstract":"<jats:p>A miniaturised bionic electronic nose system was developed to solve the problems of expensive equipment and long response time for soil pesticide residue detection. The structure of the bionic electronic nasal cavity is designed based on the spatial structure and olfactory principle of the sturgeon nasal cavity. Through experimental study, the structure of the nasal cavity of the sturgeon was extracted and analyzed. The 3D model of the bionic electronic nasal cavity was constructed and verified by Computational Fluid Dynamics (CFD) simulation. The results show that the gas flow distribution in the bionic chamber is more uniform than that in the ordinary chamber. The airflow velocity near the sensor in the bionic chamber is lower than in the ordinary chamber. The eddy current intensity near the bionic chamber sensor is 2.29 times that of the ordinary chamber, further increasing the contact intensity between odor molecules and the sensor surface and shortening the response time. The 10-fold cross-validation method of K-Nearest Neighbor (K-NN), Random Forest (RF) and Support Vector Machine (SVM) was used to compare the recognition performance of the bionic electronic nasal cavity with that of the ordinary electronic nasal cavity. The results showed that, when the bionic electronic nose detection system identified the concentration of pesticide residues in soil, the recognition rate of the above three recognition algorithms reached 97.3%, significantly higher than that of the comparison chamber. The bionic chamber electronic nose system can improve the detection performance of electronic noses and has a good application prospect in soil pesticide residue detection.<\/jats:p>","DOI":"10.3390\/biomimetics10080555","type":"journal-article","created":{"date-parts":[[2025,8,21]],"date-time":"2025-08-21T15:19:02Z","timestamp":1755789542000},"page":"555","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Structure Design and Performance Study of Bionic Electronic Nasal Cavity"],"prefix":"10.3390","volume":"10","author":[{"given":"Pu","family":"Chen","sequence":"first","affiliation":[{"name":"College of Engineering and Technology, Jilin Agricultural University, Changchun 130118, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhipeng","family":"Yin","sequence":"additional","affiliation":[{"name":"College of Engineering and Technology, Jilin Agricultural University, Changchun 130118, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9103-7209","authenticated-orcid":false,"given":"Shun","family":"Xu","sequence":"additional","affiliation":[{"name":"College of Engineering and Technology, Jilin Agricultural University, Changchun 130118, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pengyu","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Engineering and Technology, Jilin Agricultural University, Changchun 130118, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lianjun","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Engineering and Technology, Jilin Agricultural University, Changchun 130118, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"You","family":"Lv","sequence":"additional","affiliation":[{"name":"Changchun Satellite Observation Station, National Astronomical Observatories, Chinese Academy of Sciences, Changchun 130117, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,8,21]]},"reference":[{"key":"ref_1","first-page":"1527","article-title":"Residues of pesticides and heavy metals in crops resulting in toxic effects on living organism","volume":"15","author":"Yadav","year":"2020","journal-title":"J. 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