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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 ...
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 ...
Quantum cascade laser-grazing angle spectroscopy detection of high explosives deposited on various substrates using air spray
(2020-04-19)
The mid-infrared (MIR) laser reflectance of samples of high explosives (HEs) deposited on reflective and matte substrates using spray deposition was measured and used to generate multivariate (MVA) models for the analysis ...
Detection and discrimination of high explosives on human hair by Raman scattering
(2020-05-29)
High explosives (HE) represent a high risk to the safety and health of the general population. Therefore, there is an ongoing demand for methods of analysis with limits of detection at trace levels for these hazardous ...
(His)6 -tag recombinant hemoglobin I from Lucina Pectinata: A novel hydrogen sulfide protein donor
(2020-07)
Hydrogen Sulfide (H2S) is a gasotransmitter involved in physiological and pathological
processes in humans and animals. It is produced endogenously in humans through enzymatic
pathways. H2S is associated with the ...
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 ...
Flavonoid-ferrocene conjugate as new treatment for breast cancer
(2021-07-08)
Research in drug development for breast cancer treatment has been crucial, since traditional treatments have been associated with neurotoxicity and nephrotoxicity. Previous studies showed that when ferrocene is combined ...
Development of calibration models within a closed feed frame to determine drug concentration using near infrared spectroscopy
(2021-12-08)
The closed feed frame (without the die disc) was evaluated as an option to reduce the amount of material for the development near-infrared spectroscopic calibration models. Lubricated and unlubricated blends were prepared ...
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 ...