The search for renewable energy sources has become challenging in the current era, as conventional fuel sources are of finite origins. Recent research interest has focused on various biophotovoltaic (BPV) platforms utilizing algae, which are then used to harvest solar energy and generate electrical power. The majority of BPV platforms incorporate indium tin oxide (ITO) anodes for the purpose of charge transfer due to its inherent optical and electrical properties. However, other materials such as reduced graphene oxide (RGO) could provide higher efficiency due to their intrinsic electrical properties and biological compatibility. In this work, the performance of algae biofilms grown on RGO and ITO anodes were measured and discussed. Results indicate improved peak power of 0.1481 mWm−2 using the RGO electrode and an increase in efficiency of 119%, illustrating the potential of RGO as an anode material for applications in biofilm derived devices and systems.
Purpose – The purpose of this paper is to identify the most dominant pigment of pomegranate explants for natural color coatings and detect the presence of phytochemical constituents and comparison of the antioxidant activities. Design/methodology/approach – Extracts of leaf, stem, peel and seed of in vitro and in vivo growth cultures were prepared for phytochemical constituent and antioxidant activity. The supernatant from 95 per cent methanol was mixed with 15 per cent polyvinyl alcohol (PVA) with the ratio of 1:1 to form a coating system. Findings – Although glycosides was not found in this species, tests for tannins and flavonoids were positive in all samples. The IC50 values were also comparable to commercial antioxidant ascorbic acid with 34.92 per cent inhibition. Chlorophyll a and b were detected in stem and leaf using UV-photospectrometer in 420 and 645 nm wavelengths ranges. The effects of heat and salt on the stability of natural dye colorants mixed with polyvinyl alcohol to form a basic coating system were indicated negatively in in vivo and in vitro growth cultures. Originality/value – The paper shows that further improvement with co-pigmentations may give a notable mixture from pomegranate extraction for the paint materials or nail varnish. It was also indicated that pomegranate contains some compounds such as polyphenolics that can donate electron/hydrogen easily.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.