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Adsorption of pollutants by spent-coffee-grounds composite beads
(2020-05-19)
The use of heavy metals in technological applications has led to detrimental effects on the
environment. Activated carbon is commonly used to remove pollutants but it is expensive.
Therefore, the research of low-cost ...
Development of sensitive analytical methods based on quantum cascade laser spectroscopy
(2021-07-09)
Quantum cascade laser (QCL) technology has enabled the development of more sensitive analytical methods based on mid-infrared spectroscopy due to high brightness and spectral resolution. The advantages of this technology ...
Evaluation of sources of error in dynamic processes and material traceability in continuous pharmaceutical manufacturing through real-time spectroscopic analysis
(2021-05-05)
This dissertation focuses on the development of real-time spectroscopic methods to investigate the sources of variation in dynamic processes using variographic analysis and accomplish material traceability for continuous ...
Development of Blend Uniformity Determination Methodologies in Continuous Pharmaceutical Manufacturing Processes using Near- Infrared Spectroscopy
(2020-04-17)
Pharmaceutical companies are responsible for the development of their own blend uniformity specifications and guidelines to assure uniformity and homogeneity. Blend uniformity is a critical in the manufacturing of solid ...
Synthesis and evaluation of alginate coated magnetite nanoparticles for the removal of dyes from wastewater
(2020-12-11)
The discharge of wastewater from the dyeing industry is an environmental concern across the
world. These effluents are considered highly toxic since they contain high concentrations of synthetic
dyes, which are a great ...
High explosives detection in international mail using See-Through Raman Spectroscopy assisted by multivariate analysis
(2020-12-09)
See-Through Raman Spectroscopy (STRS) was used for the non-invasive, non-destructive sample analysis of high explosives (HEs) in mail envelopes or flats. The method resulted in a safe and rapid analysis of HEs: ammonium ...
Crystal structures of hemeproteins: Sulf and H2S myoglobin derivatives and Lucina pectinata Oxy (HbII-HbIII) and Oxy (HbIII-HbIII) systems
(2020-04-21)
As a gasotransmitter, hydrogen sulfide (H2S) biochemistry in humans is of pivotal importance. One relevant reaction of H2S in our bodies is its interaction with hemeproteins. The threshold of its beneficial/harmful effects ...
TNT and MO photodegradation in deionized and salt waters with visible light assisted by photoactivation of modified TiO2
(2020-05-22)
The release of munitions during military combat events or training exercises represents an alarming situation to the marine environment. Since nitroaromatic compounds (NACs) that are released from these weapons remain in ...
Transmission Raman Spectrometer design for the detection of opioids, concealed chemicals, and biological threats
(2021-07-08)
Raman spectroscopy (RS) is an excellent tool for quantitative and qualitative analysis that can be used to detect and characterize different types of substances. Transmission Raman Spectroscopy (TRS) has been used in ...
Synthesis of novel ferrocene complexes with androgens vectors, biological activity and their interactions with proteins
(2020-12-11)
Four novel complexes were synthetized by aldol condensation reaction and characterized by different spectroscopic techniques using ferrocenecarboxaldehyde as starting material, and using the hormones ( 3α-hydroxy ...