{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,3]],"date-time":"2026-04-03T20:15:26Z","timestamp":1775247326442,"version":"3.50.1"},"reference-count":32,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2021,11,23]],"date-time":"2021-11-23T00:00:00Z","timestamp":1637625600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003693","name":"Korea Institute of Science and Technology","doi-asserted-by":"publisher","award":["2K02500, 2E31071, 2E31081"],"award-info":[{"award-number":["2K02500, 2E31071, 2E31081"]}],"id":[{"id":"10.13039\/501100003693","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Recent outbreaks and the worldwide spread of COVID-19 have challenged mankind with unprecedented difficulties. The introduction of autonomous disinfection robots appears to be indispensable as consistent sterilization is in desperate demand under limited manpower. In this study, we developed an autonomous navigation robot capable of recognizing objects and locations with a high probability of contamination and capable of providing quantified sterilization effects. In order to quantify the 99.9% sterilization effect of various bacterial strains, as representative contaminants with robots operated under different modules, the operating parameters of the moving speed, distance between the sample and the robot, and the radiation angle were determined. We anticipate that the sterilization effect data we obtained with our disinfection robot, to the best of our knowledge, for the first time, will serve as a type of stepping stone, leading to practical applications at various sites requiring disinfection.<\/jats:p>","DOI":"10.3390\/s21237776","type":"journal-article","created":{"date-parts":[[2021,12,1]],"date-time":"2021-12-01T01:45:02Z","timestamp":1638323102000},"page":"7776","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Standard for the Quantification of a Sterilization Effect Using an Artificial Intelligence Disinfection Robot"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9993-8661","authenticated-orcid":false,"given":"Heeju","family":"Hong","sequence":"first","affiliation":[{"name":"Artificial Intelligence and Robotics Institute, Korea Institute of Science and Technology, Seoul 02792, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"WonKook","family":"Shin","sequence":"additional","affiliation":[{"name":"Artificial Intelligence and Robotics Institute, Korea Institute of Science and Technology, Seoul 02792, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3845-1088","authenticated-orcid":false,"given":"Jieun","family":"Oh","sequence":"additional","affiliation":[{"name":"Artificial Intelligence and Robotics Institute, Korea Institute of Science and Technology, Seoul 02792, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2031-1124","authenticated-orcid":false,"given":"SunWoo","family":"Lee","sequence":"additional","affiliation":[{"name":"Artificial Intelligence and Robotics Institute, Korea Institute of Science and Technology, Seoul 02792, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7828-1557","authenticated-orcid":false,"given":"TaeYoung","family":"Kim","sequence":"additional","affiliation":[{"name":"Artificial Intelligence and Robotics Institute, Korea Institute of Science and Technology, Seoul 02792, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"WooSub","family":"Lee","sequence":"additional","affiliation":[{"name":"Artificial Intelligence and Robotics Institute, Korea Institute of Science and Technology, Seoul 02792, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"JongSuk","family":"Choi","sequence":"additional","affiliation":[{"name":"Artificial Intelligence and Robotics Institute, Korea Institute of Science and Technology, Seoul 02792, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1299-6277","authenticated-orcid":false,"given":"SeungBeum","family":"Suh","sequence":"additional","affiliation":[{"name":"Artificial Intelligence and Robotics Institute, Korea Institute of Science and Technology, Seoul 02792, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9467-2323","authenticated-orcid":false,"given":"KangGeon","family":"Kim","sequence":"additional","affiliation":[{"name":"Artificial Intelligence and Robotics Institute, Korea Institute of Science and Technology, Seoul 02792, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,11,23]]},"reference":[{"key":"ref_1","unstructured":"(2021, September 30). World Health Organization. Available online: https:\/\/covid19.who.int."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"7777","DOI":"10.1007\/s00253-020-10814-6","article-title":"The microbial coinfection in COVID-19","volume":"104","author":"Chen","year":"2020","journal-title":"Appl. Microbiol. Biotechnol."},{"key":"ref_3","unstructured":"Healthline (2021, September 30). How Are Diseases Transmitted?. Available online: https:\/\/www.healthline.com\/health\/disease-transmission#direct-contact."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"299","DOI":"10.1016\/j.ajic.2020.08.022","article-title":"Effectiveness of 222-nm ultraviolet light on disinfecting SARS-CoV-2 surface contamination","volume":"49","author":"Kitagawa","year":"2021","journal-title":"Am. J. Infect. Control"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/s12985-020-01418-7","article-title":"The effect of temperature on persistence of SARS-CoV-2 on common surfaces","volume":"17","author":"Riddell","year":"2020","journal-title":"Virol. J."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1590","DOI":"10.1109\/ACCESS.2020.3045792","article-title":"Robots under COVID-19 pandemic: A comprehensive survey","volume":"9","author":"Shen","year":"2020","journal-title":"IEEE Access"},{"key":"ref_7","first-page":"1","article-title":"Robots vs. COVID-19","volume":"1","author":"AlAttar","year":"2020","journal-title":"Emir. Eng. Abroad Lett."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"316","DOI":"10.4236\/wjet.2015.33C047","article-title":"Drone applications for supporting disaster management","volume":"3","author":"Restas","year":"2015","journal-title":"World J. Eng. Technol."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Vergouw, B., Nagel, H., Bondt, G., and Custers, B. (2016). Drone technology: Types, payloads, applications, frequency spectrum issues and future developments. The Future of Drone Use, T.M.C. Asser Press.","DOI":"10.1007\/978-94-6265-132-6_2"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1311","DOI":"10.1002\/rob.21839","article-title":"Advances in real-world applications for legged robots","volume":"35","author":"Bellicoso","year":"2018","journal-title":"J. Field Robot."},{"key":"ref_11","unstructured":"Shabbir, J., and Anwer, T. (2018). A survey of deep learning techniques for mobile robot applications. arXiv."},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Engberts, B., and Gillissen, E. (2016). Policing from above: Drone use by the police. The Future of Drone Use, T.M.C. Asser Press.","DOI":"10.1007\/978-94-6265-132-6_5"},{"key":"ref_13","unstructured":"Ackerman, E. (IEEE Spectrum, 2020). Autonomous robots are helping kill coronavirus in hospitals, IEEE Spectrum."},{"key":"ref_14","unstructured":"El Zant, C., Klement, N., Bettayeb, B., Sahnoun, M., and Havard, V. (2018, January 5\u20136). UV-robot supervision system design and development. Proceedings of the 25\u00e8me Colloque des Sciences de la Conception et de l\u2019Innovation, Budapest, Hungary."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Ray, A., and Ray, H. (2020, January 2\u20134). PSLB: Portable sanitization locomotive bot. Proceedings of the 2020 4th International Conference on Electronics, Materials Engineering & Nano-Technology (IEMENTech), Kolkata, India.","DOI":"10.1109\/IEMENTech51367.2020.9270096"},{"key":"ref_16","unstructured":"Keenon (2021, November 11). Keenon Disinfection Robot. Available online: https:\/\/www.keenonrobot.com\/EN\/Product\/pro3.html."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"99","DOI":"10.1109\/MRA.2006.1678144","article-title":"Simultaneous localization and mapping: Part I","volume":"13","author":"Bailey","year":"2006","journal-title":"IEEE Robot. Autom. Mag."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1109\/MRA.2006.1678144","article-title":"Simultaneous localization and mapping (SLAM): Part II","volume":"13","author":"Bailey","year":"2006","journal-title":"IEEE Robot. Autom. Mag."},{"key":"ref_19","first-page":"1","article-title":"Visual SLAM algorithms: A survey from 2010 to 2016","volume":"9","author":"Taketomi","year":"2017","journal-title":"IPSJ Trans. Comput. Vis. Appl."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Ince, O.F., and Kim, J.S. (2021). TIMA SLAM: Tracking Independently and Mapping Altogether for an Uncalibrated Multi-Camera System. Sensors, 21.","DOI":"10.3390\/s21020409"},{"key":"ref_21","unstructured":"Bochkovskiy, A., Wang, C.Y., and Liao, H.Y.M. (2020). Yolov4: Optimal speed and accuracy of object detection. arXiv."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1109\/100.580977","article-title":"The Dynamic Window Approach to Collision Avoidance","volume":"4","author":"Fox","year":"1997","journal-title":"IEEE Robot. Autom. Mag."},{"key":"ref_23","unstructured":"Global Lighting Association (2021, November 18). Position Statement on Germicidal UV-C Irradiation. UV-C Safety Guidelines. Available online: https:\/\/www.globallightingassociation.org\/images\/files\/publications\/GLA_UV-C_Safety_Position_Statement.pdf."},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Song, S., Lichtenberg, S.P., and Xiao, J. (2015, January 7\u201312). Sun rgb-d: A rgb-d scene understanding benchmark suite. Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition, Boston, MA, USA.","DOI":"10.1109\/CVPR.2015.7298655"},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Tan, M., Pang, R., and Le, Q.V. (2020, January 14\u201319). Efficientdet: Scalable and efficient object detection. Proceedings of the IEEE\/CVF Conference on Computer Vision and Pattern Recognition, Virtual.","DOI":"10.1109\/CVPR42600.2020.01079"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Wojgani, H., Kehsa, C., Cloutman-Green, E., Gray, C., Gant, V., and Klein, N. (2012). Hospital door handle design and their contamination with bacteria: A real life observational study. Are we pulling against closed doors?. PLoS ONE, 7.","DOI":"10.1371\/journal.pone.0040171"},{"key":"ref_27","first-page":"241","article-title":"Pathogenic aerobic bacterial contaminants on non-critical hospital surfaces within paediatric ward of a nigerian hospital","volume":"5","author":"Saka","year":"2016","journal-title":"J. Med. Microb. Diagn."},{"key":"ref_28","unstructured":"IUVA (2021, September 30). What Is the UVC Dose for Killing or Disabling the COVID-19 Virus?. Available online: https:\/\/www.iuva.org\/iuva-covid-19-faq."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"493","DOI":"10.1667\/RR0010CC.1","article-title":"Germicidal efficacy and mammalian skin safety of 222-nm UV light","volume":"187","author":"Buonanno","year":"2017","journal-title":"Radiat. Res."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"a000414","DOI":"10.1101\/cshperspect.a000414","article-title":"The bacterial cell envelope","volume":"2","author":"Silhavy","year":"2010","journal-title":"Cold Spring Harb. Perspect. Biol."},{"key":"ref_31","first-page":"12","article-title":"The influence of relative humidity on the UV susceptibility of airborne gram negative bacteria","volume":"6","author":"Fletcher","year":"2004","journal-title":"IUVA News"},{"key":"ref_32","unstructured":"FDA (2021, September 30). UV Lights and Lamps: Ultraviolet-C Radiation, Disinfection, and Coronavirus, Available online: https:\/\/www.fda.gov\/medical-devices\/coronavirus-covid-19-and-medical-devices\/uv-lights-and-lamps-ultraviolet-c-radiation-disinfection-and-coronavirus."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/23\/7776\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T07:34:33Z","timestamp":1760168073000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/23\/7776"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,11,23]]},"references-count":32,"journal-issue":{"issue":"23","published-online":{"date-parts":[[2021,12]]}},"alternative-id":["s21237776"],"URL":"https:\/\/doi.org\/10.3390\/s21237776","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,11,23]]}}}