Amala Tangellapally

Bio: Amala Tangellapally is an academic researcher. The author has contributed to research in topics: Microbial fuel cell & Population. The author has an hindex of 1, co-authored 3 publications receiving 17 citations.

Photosynthetic microorganisms (Algae) mediated bioelectricity generation in microbial fuel cell: Concise review

Abstract: Since the last century, the search for clean and renewable energy is going on. This process will continue until there is a stable solution available as an alternative to fossil fuels. Several energy-producing products arise from photosynthetic-organisms like biofuel, bioelectricity, and there are various methods also available for the extraction of these products. Microbial fuel cells (MFCs) are energy transducers which convert organic matter directly into electricity, through the process of anaerobic respiration of microorganisms. Now a day’s researchers have taken as a challenge to use algae along with the bacterial communities to provide an organic carbon fuel source for the MFCs. This paper describes the potential application of algal biomass in the field of bioelectricity. Till now, many scientific experiments conducted all around the world to demonstrate how well efficient is this green photosynthetic organism capable of producing electricity along with its other applications like biofuel, demand in the food industry, and much more. The present manuscript aimed to provide an overview of the potential use of algae as a biocatalyst in MFCs. Further, this article also provides the current status of numerous countries which are excelled in the field of bioelectricity generation.

Use of chalcogenides-based nanomaterials for wastewater treatment including bacterial disinfection and organic contaminants degradation

Abstract: Nowadays pollution is a major concern for human mankind. As the generations are passing by, the more the worse it is getting to protect the environment. Every part of the environment is being contaminated due and in reverse, the humans and the other living being getting affected due to the consequences done by humans. Even though there are several technologies available to protect the environment still we find some voids to fill in and in this process, new technology evolves in. Water pollution is also considered to be one of the most ghastly situations, where economic development, rapid industrialization and even the population overgrowth is playing a key role. Due to rapid growth the release of several organic as well as inorganic substances into the environment, this is further leading to environmental pollution as well as the contamination of water. Because of this, combining nanotechnology in wastewater treatment will improve the quality of water. The major advantage of using the nanoparticles is they possess unique characteristics and have a high surface area where the unwanted particles get absorbed in these nanoparticles and get removed from them because of their high surface area. It can also be used for removing toxic substances. In this chapter, we discuss the latest technologies, which are available right now using the chalcogenides nanomaterials. Like, to disinfect the bacterial communities in wastewater, aspects of chalcogenide nanomaterials, as catalysts, remediation of various environmental contaminants, and their role in treating the contaminated water including organic contaminants degradation alongside bacterial disinfection.

Greener synthesis of enzymes from marine microbes using nanomaterials

Abstract: The marine ecosystem is a massive source and home for countless microorganisms, several aquatic animals, and even higher plants and animals for many decades. A mutualistic relationship exists between the marine aquatic species as well as the marine microbes, which are mutually benefitted against each other (both prokaryotic and eukaryotic microbes like bacteria, fungi, viruses, and even marine algae). During their life cycle, these organisms produce several enzymes, which are used in several of the industries for the well-being of humans and other living organisms. A number of enzymes currently available in the market are produced by these microbes in different pathways, possessing a special feature as well as characteristics required by several industries for preparation of materials. Variety of enzymes with special activities have been isolated from marine bacteria, actinomycetes, fungi, and other marine microorganisms by researchers in recent years, and some products already found industrial applications. In this chapter, we shall discuss various pathways/steps applied in the production of enzymes through a greener approach by using several nanotechnologies available in making the enzyme product more viable and even increase the shelf life of the product so that it can be used for a longer period of time, which include various properties of enzymes like thermotolerance, thermos-stability of an enzyme over an extensive temperature and pH range. Also, with existing bioreactors, these microbes can be cultivated and produce enzymes using greener synthesis. The bacterial marine enzymes are used in different industrial applications beneficial to humans as they can withstand harsh conditions. In this work, authors try to limit over application focus mainly on medicine and biotechnology, energy and biofuels, food, nutrition and agriculture, and others. With the sustenance of nanotechnology, increase the stability of enzymes by the application of existing greener approaches were discussed.

Efficient dye degradation strategies using green synthesized ZnO-based nanoplatforms: A review

Abstract: Organic pollutants in industrial waste must be handled with viable and eco-friendly approaches. In particular, releasing toxic effluents like dyes into the environment pollutes water bodies, causing fatal diseases in humans and is hazardous to aquatic life. It necessitates the removal of effluent dyes before being discharged into the water bodies. The photocatalytic degradation method using metal oxide nanoparticles is the preferred choice amongst various dye remediation strategies. However, state-of-the-art metal oxide nanoparticle-based dye remediation involves developing non-toxic, economic, and eco-friendly metal oxides using green chemistry. Plant-mediated ZnO-based nanoplatforms exhibited substantial photocatalytic properties, non-toxicity, biocompatibility, and cost-effectiveness, possessing the potential to replace conventional dye remediation strategies. This review focuses on the development and performance of green synthesized ZnO nanoparticles towards degrading various dyes for wastewater remediation. It comprehensively summarizes the state-of-the-art green ZnO nanoparticle fabrication from various plant extracts (like leaves, seeds, juice, and fruits), illustrates their dye removal efficacies, and details their photocatalytic dye degradation mechanism. This review aims to serve as a fundamental structure to guide future research on green ZnO-based nanoplatforms for wastewater treatment, where photocatalytic attributes and green chemistry are prerequisites.

Advanced microbial fuel cell for waste water treatment-a review.

Abstract: Petroleum, coal, and natural gas reservoir were depleting continuously due to an increase in industrialization, which enforced study to identify alternative sources. The next option is the renewable resources which are most important for energy purpose coupled with environmental problem reduction. Microbial fuel cells (MFCs) have become a promising approach to generate cleaner and more sustainable electrical energy. The involvement of various disciplines had been contributing to enhancing the performance of the MFCs. This review covers the performance of MFC along with different wastewater as a substrate in terms of treatment efficiencies as well as for energy generation. Apart from this, effect of various parameters and use of different nanomaterials for performance of MFC were also studied. From the current study, it proves that the use of microbial fuel cell along with the use of nanomaterials could be the waste and energy-related problem-solving approach. MFC could be better in performances based on optimized process parameters for handling any wastewater from industrial process.