{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,28]],"date-time":"2026-01-28T00:14:33Z","timestamp":1769559273788,"version":"3.49.0"},"reference-count":24,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2023,3,14]],"date-time":"2023-03-14T00:00:00Z","timestamp":1678752000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Thailand Science Research and Innovation (TSRI)","award":["C10F630030"],"award-info":[{"award-number":["C10F630030"]}]},{"name":"Thailand Science Research and Innovation (TSRI)","award":["FF2566"],"award-info":[{"award-number":["FF2566"]}]},{"name":"The National Science, Research and Innovation Fund","award":["C10F630030"],"award-info":[{"award-number":["C10F630030"]}]},{"name":"The National Science, Research and Innovation Fund","award":["FF2566"],"award-info":[{"award-number":["FF2566"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this work, we report a low-cost and highly sensitive electrochemical sensor for detecting As(III) in water. The sensor uses a 3D microporous graphene electrode with nanoflowers, which enriches the reactive surface area and thus enhances its sensitivity. The detection range achieved was 1\u201350 ppb, meeting the US-EPA cutoff criteria of 10 ppb. The sensor works by trapping As(III) ions using the interlayer dipole between Ni and graphene, reducing As(III), and transferring electrons to the nanoflowers. The nanoflowers then exchange charges with the graphene layer, producing a measurable current. Interference by other ions, such as Pb(II) and Cd(II), was found to be negligible. The proposed method has potential for use as a portable field sensor for monitoring water quality to control hazardous As(III) in human life.<\/jats:p>","DOI":"10.3390\/s23063099","type":"journal-article","created":{"date-parts":[[2023,3,14]],"date-time":"2023-03-14T06:14:58Z","timestamp":1678774498000},"page":"3099","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Nanoflowers on Microporous Graphene Electrodes as a Highly Sensitive and Low-Cost As(III) Electrochemical Sensor for Water Quality Monitoring"],"prefix":"10.3390","volume":"23","author":[{"given":"Mahatthanah","family":"Kosuvun","sequence":"first","affiliation":[{"name":"Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7806-7390","authenticated-orcid":false,"given":"Pobporn","family":"Danvirutai","sequence":"additional","affiliation":[{"name":"Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand"},{"name":"Research and Development Division, T. Robotics, Co., Ltd., Khon Kaen 40000, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daranee","family":"Hormdee","sequence":"additional","affiliation":[{"name":"Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arnut","family":"Chaosakul","sequence":"additional","affiliation":[{"name":"Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Visanu","family":"Tanboonchuy","sequence":"additional","affiliation":[{"name":"Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand"},{"name":"Research Center for Environmental and Hazardous Substance Management (EHSM), Khon Kaen University, Khon Kaen 40002, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Apirat","family":"Siritaratiwat","sequence":"additional","affiliation":[{"name":"Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sirirat","family":"Anutrakulchai","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand"},{"name":"Chronic Kidney Disease Prevention in the Northeast of Thailand (CKDNET), Khon Kaen University, Khon Kaen 40002, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2860-7790","authenticated-orcid":false,"given":"Amod","family":"Sharma","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand"},{"name":"Chronic Kidney Disease Prevention in the Northeast of Thailand (CKDNET), Khon Kaen University, Khon Kaen 40002, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adisorn","family":"Tuantranont","sequence":"additional","affiliation":[{"name":"Graphene and Printed Electronics for Dual-Use Applications Research Division (GPERD), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4772-3543","authenticated-orcid":false,"given":"Chavis","family":"Srichan","sequence":"additional","affiliation":[{"name":"Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand"},{"name":"Research Center for Environmental and Hazardous Substance Management (EHSM), Khon Kaen University, Khon Kaen 40002, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,3,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/S0378-4274(03)00262-5","article-title":"The effects of arsenic exposure on the nervous system","volume":"145","author":"Giordano","year":"2003","journal-title":"Toxicol. 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