What is it about?
It is about an electrochemical sensor for the detection of Furosemide drug and its removal from wastewater via biocryogel-based adsorption
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Why is it important?
This research seeks to purify water from an emerging pharmaceutical pollutant, furosemide, a widely utilized diuretic recognized for its persistence in aquatic environments and the significant environmental threats it poses. The approach adopted in this article is the first detect the contaminant and then to remove it. The detection objective is achieved by an electrochemical nanosensor. While the removal objective is achieved by an effective and novel adsorbent. Our contribution demonstrates an advanced approach for the remediation of furosemide pollutant that eludes conventional wastewater treatment systems by integrating electrochemical sensing techniques with removal techniques. The designed electrochemical nanosensor is able to detect picomolar concentration of furosemide. The innovative Vinyl Imidazole Chitosan cryogel (VI-CS) based adsorption method demonstrated remarkable efficiency by removing the drug in just 26 minutes at neutral pH, in contrast to traditional adsorbents that require hours or even days.
Perspectives
Among the industrial pollutants, pharmaceutical contaminants are the second most pressing global environmental issue following carbon dioxide emissions. Addressing this challenge, the present work introduces a dual-function approach for the detection and elimination of the diuretic drug furosemide from pharmaceutical wastewater. Effective wastewater treatment is essential for safeguarding public health, maintaining ecological balance, and ensuring the sustainability of water resources. It significantly contributes to the achievement of various Sustainable Development Goals (SDGs), particularly SDG 6, which emphasizes the importance of clean water and sanitation, as well as SDG 14, which focuses on the conservation of marine ecosystems, and SDG 15, which aims to protect terrestrial habitats. Furthermore, wastewater treatment is instrumental in promoting SDG 3, which seeks to enhance health and well-being by reducing the spread of waterborne diseases. Furosemide (FUR) is an antihypertensive drug identified chemically as 4-chloro-2-(furan-2-ylmethylamino)-5-sulfomylbenzoic acid. It is commonly prescribed to manage edema and hypertension associated with conditions such as heart failure, renal failure, and liver diseases. Additionally, furosemide is deemed more toxic than its metabolites. Therefore, the development of efficient methods for its detection and removal from wastewater is an obligation.
Dr Afzal Shah
Quaid-i-Azam University, Iislamabad
Read the Original
This page is a summary of: Electrochemical detection of furosemide and its removal from wastewater using adsorption method, Discover Sustainability, July 2025, Springer Science + Business Media,
DOI: 10.1007/s43621-025-01663-2.
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