{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,7]],"date-time":"2026-03-07T20:40:47Z","timestamp":1772916047967,"version":"3.50.1"},"reference-count":58,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2021,3,17]],"date-time":"2021-03-17T00:00:00Z","timestamp":1615939200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sustainability"],"abstract":"<jats:p>This study investigates the \u201cInternet of things\u201d (IoT) and \u201cCircular Economy\u201d (CE) relationship in the current scientific literature focused on case studies or use cases on manufacturing context. To the best of our knowledge, this study is the first to map the science centered on \u201ccase studies\u201d with respect to the \u201cIoT\u201d and \u201cCE\u201d connection, contributing to fill the gap of the subject that is already relevant to the scientific community and practitioners. The research methodology consists of developing a bibliometric study, employing PRISMA process, whose data is obtained from the Web of Science database. The VOSviewer was the computer program selected for the bibliometric analysis. The Web of Science (WoS) analysis tool supports VOSviewer. The papers were analyzed according to network analysis principles. The qualitative content analysis complements these results. The results show the high-frequency keywords and topics associated with the theme \u201cIoT and CE\u201d; the most cited papers; the intellectual structure of \u201cIoT and CE\u201d; the new emerging themes in scientific research; and social networks among the researchers. The paper\u2019s contribution is the results of the bibliometric analysis and a better understanding of the relationship of \u201cIoT\u201d and \u201cCE\u201d by the \u201ccase studies\u201d addressed in the empirical investigations.<\/jats:p>","DOI":"10.3390\/su13063299","type":"journal-article","created":{"date-parts":[[2021,3,17]],"date-time":"2021-03-17T21:43:31Z","timestamp":1616017411000},"page":"3299","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":56,"title":["Circular Economy and Internet of Things: Mapping Science of Case Studies in Manufacturing Industry"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9437-530X","authenticated-orcid":false,"given":"Adriane","family":"Cavalieri","sequence":"first","affiliation":[{"name":"Department of Economics Management Industrial Engineering and Tourism, GOVCOPP, University of Aveiro, Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"},{"name":"Department of Assessments and Production Engineering (Divis\u00e3o de Avalia\u00e7\u00f5es e Processos Industriais), National Institute of Technology (Instituto Nacional de Tecnologia), Rio de Janeiro 20081-312, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8504-0065","authenticated-orcid":false,"given":"Jo\u00e3o","family":"Reis","sequence":"additional","affiliation":[{"name":"Department of Economics Management Industrial Engineering and Tourism, GOVCOPP, University of Aveiro, Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"},{"name":"Industrial Engineering and Management, EIGeS, Lusofona University, Campo Grande, 1749-024 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0901-0614","authenticated-orcid":false,"given":"Marlene","family":"Amorim","sequence":"additional","affiliation":[{"name":"Department of Economics Management Industrial Engineering and Tourism, GOVCOPP, University of Aveiro, Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,3,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Okorie, O., Salonitis, K., Charnley, F., Moreno, M., Turner, C., and Tiwari, A. 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