Candle Soot Coating for Latent Fingermark Enhancement on Various Surfaces

We demonstrate a facile method termed candle soot coating (CSC) for fast developing latent fingermarks (LFMs) on various kinds of surfaces (glass, ceramic, metal, paper and adhesive tape). The CSC method can be considered as simple, fast, and low-cost as well as providing high contrast for LFM visualization in potential forensic applications

The fabrication of polymer nanocomposite based sensors for the detection of ethanol, methanol and hydrogen sulphide, produced during beer fermentation

Abstract: Gas sensing technology is a subject that is increasingly being studied and becoming more applicable in areas such as fermentation, personal safety, academic research and many others. This study includes different types of sensors. This research focused on gas sensors, specifically volatile organic compounds sensors. Volatile organic compounds are applicable in many production areas such as alcoholic beverage production. Beer is the most produced alcoholic beverage worldwide and the three main volatile organic compounds applicable to the production of beer are Ethanol, Methanol, and Hydrogen sulphide which contribute majorly to the mouth feel, flavour and the odour of beer. During beer fermentation, these three compounds require constant monitoring to avoid being over produced and contamination. Currently, the detection of Ethanol, Methanol, and H2S are undertaken by conventional methods such as high-liquid-performance chromatography, gas chromatography, and near-infrared spectroscopy. These methods are time-consuming. They lack portability and are very expensive...M.Tech. (Biotechnology