The accurate characterization of silver nanoparticles (Ag NPs) in environmental samples is crucial for understanding the potential impact these materials on environment and human health. Single-particle inductively coupled plasma mass spectrometry (spICP-MS) one few techniques available quantifying NPs at environmentally relevant concentrations. However, spICP-MS detection Ag can be interfered ...

Acid mine drainage is a natural process occurring when sulfide minerals such as pyrite are exposed to water and oxygen. The bacterially catalyzed oxidation of pyrite is particularly common in coal mining operations and usually results in a low-pH water polluted with toxic metals and sulfate. Although high sulfate concentrations can be reduced by gypsum precipitation, removing lower concentratio...

BACKGROUND Enzymatic ethanolysis of oils (for example, high oleic sunflower oil containing 90% of oleic acid) may yield two different reaction products depending on the regioselectivity of the immobilized lipase biocatalyst. Some lipase biocatalysts exhibit a 1,3-regioselectivity and they produced 2 mols of fatty acid ethyl ester plus 1 mol of sn2-monoacylglycerol (2-MAG) per mol of triglycerid...

Corn steep water (CSW) is a secondary stream obtained from corn wet-milling industry that constitutes source of cost-competitive biocompounds. Among them, biosurfactants are one the most interesting due to important industrial applications and several advantages over commonly used chemical surfactants, such as lower toxicity, higher biodegradability better environmental compatibility (De et al....

No. Mei0279 Imaging the Distribution and Secondary Structure of Enzymes on Different Matrixes Using Infrared Microspectroscopy Ying Mei, Yong Chen, Richard Gross (Polytechnic Univ.) and Lisa Miller (NSLS) Beamline(s): U10B Introduction: Enzymes catalyze a plethora of reactions with high specificity, speed, and yield. However, in order to be useful as industrial biocatalysts, improvements in enz...

Evaluation of the Removal Efficiency of Perfluoroalkyl Substances in Drinking Water Sophie Englund Per-and polyfluoroalkyl substances (PFASs) are chemicals that have been used for over 50 years. They are both hydrophobic and hydrophilic, which make them useful in a wide range of products, both in the domestic and industrial market. Recently, the global attention on PFASs has increased due to th...