Dual Detection of Glucose Using Commercial Potassium Permanganate and Glucose Oxidase: Colorimetric and Absorbance-Based Approaches.

Accurate and accessible glucose detection is essential for clinical diagnostics, point-of-care testing, food safety, and biosensing applications. In this study, we present a simple, scalable, and dual-mode glucose sensor that integrates commercial potassium permanganate (KMnO) with glucose oxidase to enable sensitive and selective detection in the clinically critical range of 1-5 mM. Leveraging the strong oxidative power and distinct optical characteristics of KMnO, the sensor operates via both absorbance measurement at 400 nm and visual colorimetric analysis, displaying a clear color change from purple to pink and yellow upon reaction with glucose.

Reduced graphene oxide-based absorbance biosensors for detecting Escherichia coli DNA.

Escherichia coli represents a significant concern for food safety, water quality, medical applications, and environmental health, necessitating effective detection methods. This study presents a reduced graphene oxide-based biosensor for the sensitive and specific detection of E. coli DNA.

Single-step hydrothermal synthesis of zinc oxide nanorods for potential use as nano-antibiotics without seeding or bases.

The alarming global rise in antibiotic resistance, driven by the widespread overuse of traditional antibiotics, has created an urgent demand for new antimicrobial solutions. This study presents zinc oxide (ZnO) nanorods as a potential nano-antibiotic agent. ZnO nanorods, with a 2:3 aspect ratio, were synthesized using an efficient one-step hydrothermal method at a low temperature of 100°C, reducing the synthesis time to just 5 hours.