Extremophiles are organisms able to thrive in extreme environmental conditions and some of them show the ability to survive high doses of heavy metals thanks to defensive mechanisms provided by primary and secondary metabolic products, i.e., extremolytes, lipids, and extremozymes. This is why there is a growing scientific and industrial interest in the use of thermophilic bacteria in a host of ...

5.3. Xenobiotic Trace Metals and Materials 4804 5.3.1. Toxicology of Heavy Metals 4804 5.3.2. Nanoparticle Applications 4810 5.4. Environmental Metal Speciation 4812 5.4.1. Bacteria 4812 5.4.2. Aquatic Organisms 4812 6. Mass Spectrometry Imaging Techniques 4813 6.1. Secondary Ion Mass Spectrometry (SIMS) 4813 6.1.1. Metal Ion Distribution in Chromosomes 4813 6.1.2. Subcellular Distribution of M...

introduction because of population growth, human needs to produce raw materials have increased. different industries have developed that discharge pollutants into the environment. one type of the contaminants is heavy metals that are abundant in municipal and industrial waste waters. these compounds aren’t capable of biological degradation and in certain quantities are considered toxic to many ...

Heavy metal pollution of soils is of great concern. The presence of the toxic metal species above critical concentration not only harmfully affects human health but also the environment. Among existing strategies to remediate metal contaminates in soils, phytoremediation approach using metal accumulating plants is much convincing in terms of metal removal efficiency, but it has many limitations...

Acidic mine drainage (AMD) is regarded as a pollutant and considered as potential source of valuable metals. With diminishing metal resources and ever-increasing demand on industry, recovering AMD metals is a sustainable initiative, despite facing major challenges. AMD refers to effluents draining from abandoned mines and mine wastes usually highly acidic that contain a variety of dissolved met...

Removal of heavy metals from wastewater needs advance chemical technology and is more expensive too. The cheaper alternative for this is the bioremediation using heavy metals resistant microorganisms. In this study, 10 heavy metal resistant bacteria were isolated from oxidation ditch of wastewater treatment plant of Bagmati Area Sewerage Project. These include chromium resistant Staphylococcus ...

Bacteria are considered as foremost bioremediating agents among microorganisms, encompassing simple biological mechanism to tolerate higher concentration of heavy metal and favoring conservative strategies substitute the usage chemicals. Relating this implication, present study is designed identify, screen characterize bacteria from industrial site soil multimetals. Almost 108 colonies were obt...

Urbanization, industrialization and other human activities has introduced a number of heavy metal contaminants in the environment. Microorganisms inhabiting such sites are well efficient in developing resistance strategies against toxic heavy metal stress. The present work qualitatively describes uptake of nickel (Ni) and lead (Pb) by epiphytic root bacteria isolated from the rhizosphere of the...

In biosciences and biotechnology, the expanding application of physicochemical approaches using modern instrumental techniques is an efficient strategy to obtain valuable and often unique information at the molecular level. In this work, we applied a combination of vibrational (Fourier transform infrared (FTIR), FT-Raman) spectroscopic techniques, useful in overall structural and compositional ...