{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T03:17:49Z","timestamp":1780456669400,"version":"3.54.1"},"reference-count":156,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2023,3,2]],"date-time":"2023-03-02T00:00:00Z","timestamp":1677715200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Science Foundation of Chongqing, China","award":["cstc2021jcyj-bshX0031, 2021"],"award-info":[{"award-number":["cstc2021jcyj-bshX0031, 2021"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Colorimetric sensors have been widely used to detect numerous analytes due to their cost-effectiveness, high sensitivity and specificity, and clear visibility, even with the naked eye. In recent years, the emergence of advanced nanomaterials has greatly improved the development of colorimetric sensors. This review focuses on the recent (from the years 2015 to 2022) advances in the design, fabrication, and applications of colorimetric sensors. First, the classification and sensing mechanisms of colorimetric sensors are briefly described, and the design of colorimetric sensors based on several typical nanomaterials, including graphene and its derivatives, metal and metal oxide nanoparticles, DNA nanomaterials, quantum dots, and some other materials are discussed. Then the applications, especially for the detection of metallic and non-metallic ions, proteins, small molecules, gas, virus and bacteria, and DNA\/RNA are summarized. Finally, the remaining challenges and future trends in the development of colorimetric sensors are also discussed.<\/jats:p>","DOI":"10.3390\/s23052749","type":"journal-article","created":{"date-parts":[[2023,3,3]],"date-time":"2023-03-03T02:03:08Z","timestamp":1677808988000},"page":"2749","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":146,"title":["Colorimetric Sensors for Chemical and Biological Sensing Applications"],"prefix":"10.3390","volume":"23","author":[{"given":"Yu","family":"Wu","sequence":"first","affiliation":[{"name":"School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Feng","sequence":"additional","affiliation":[{"name":"School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3895-1744","authenticated-orcid":false,"given":"Guang","family":"Hu","sequence":"additional","affiliation":[{"name":"School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"En","family":"Zhang","sequence":"additional","affiliation":[{"name":"Chongqing Institute for Food and Drug Control, Chongqing 401121, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huan-Huan","family":"Yu","sequence":"additional","affiliation":[{"name":"Chongqing Institute for Food and Drug Control, Chongqing 401121, China"},{"name":"College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,3,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"128988","DOI":"10.1016\/j.foodchem.2020.128988","article-title":"Label-free exonuclease I-assisted signal amplification colorimetric sensor for highly sensitive detection of kanamycin","volume":"347","author":"Li","year":"2021","journal-title":"Food Chem."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Zhu, D., Liu, B., and Wei, G. 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