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Articles 1 - 8 of 8
Full-Text Articles in Physical Sciences and Mathematics
Modification Of Chm20 Lab: Synthesis Of Aspirin, Nicole Diaz, Amy Musselman Prof.
Modification Of Chm20 Lab: Synthesis Of Aspirin, Nicole Diaz, Amy Musselman Prof.
KU Inspires! Undergraduate Research Day
No abstract provided.
Uptake Of Co(Ii) Ions From Aqueous Solutions By Low-Cost Biopolymers And Their Hybrid, Mohamdia Nassar, Abel E. Navarro
Uptake Of Co(Ii) Ions From Aqueous Solutions By Low-Cost Biopolymers And Their Hybrid, Mohamdia Nassar, Abel E. Navarro
Publications and Research
Alginate hydrogel beads (AB), spent peppermint leaf (PM), and a hybrid adsorbent of these two materials (ABPM), were studied as potential adsorbents of Cobalt (II) ions from aqueous solutions in batch system at room temperature. Equilibrium parameters such as solution pH, mass of adsorbent and the presence of a crowding agent on the adsorption of Co(II) ions were investigated. The results indicate that Co(II) uptake is maximized at pH values higher than 5, with adsorbent doses in the range 120-200 mg. Co(II) adsorption followed the trend AB > ABPM > PM with adsorption percentages of 77%, 71% and 64%, respectively.
Chem 403: Analysis Of Arsenic In Wine Using Xrf, Hannah Meyls
Chem 403: Analysis Of Arsenic In Wine Using Xrf, Hannah Meyls
2020 Virtual Spring Student Showcase for Research and Creative Inquiry
Arsenic contamination in food and beverages is a problem due to the harm it can cause consumers. Currently in the United States there is no regulation limit. Red, white, and pink wines will be analyzed for their concentration of inorganic arsenic. Analysis of the wines will be analyzed by x-ray fluorescence spectroscopy (XRF). From this experiment we hope to develop a new method for measuring low concentrations of arsenic in wine.
Synthesis Of Cyclopropyl Analogs Of Stereochemically Rigid Probes Of Certain Pharmacological Receptors, Douglas Armstrong, Zachary Emptage, Anderson Verhoeven
Synthesis Of Cyclopropyl Analogs Of Stereochemically Rigid Probes Of Certain Pharmacological Receptors, Douglas Armstrong, Zachary Emptage, Anderson Verhoeven
Scholar Week 2016 - present
Douglas Armstrong, lead ONU faculty researcher, and his two research students, Zachary Emptage and Anderson Verhoeven, expanded their previous research (centered around acetylcholine and cholinergic activity), to include other types of pharmacological receptors, but again, aiming at the same type of compounds (cyclopropyl) to confer conformational (stereochemical) rigidity. The focus now is on compounds which, like acetylcholine, also contain an oxygen atom and a nitrogen atom separated by two carbon atoms, but which have pharmacological activity other than cholinergic. Several pharmacological categories have this pattern as known medicinal agents (“drugs”), including certain antidepressants, antihistamines, anti-anxiety drugs, etc. For some, there …
Computational Chemistry - Ulk 101, Michaela Montpas
Computational Chemistry - Ulk 101, Michaela Montpas
Scholar Week 2016 - present
Autophagy is a process that generates the necessary building components for cells by cytoplasmic breakdown of unnecessary materials (Martin, Celano, Solitro, Gunaydin, Scott, et. al., 2018). This is a survival technique for cells in times of stress, especially during periods of nutrient starvation. Cancer cells, unfortunately, benefit from this process due to their ability to flourish in nutrient-starved environments, becoming resistant to therapy. The primary protein in mammals responsible for this process is a serine/threonine kinase called ULK 1 (unc-51 like autophagy initiating kinase 1). As such, inhibitors of ULK 1 can be used in cancer therapies in order to …
Quantification Of Vitamin B12 In Two Cricket Species, Haley Smeltz
Quantification Of Vitamin B12 In Two Cricket Species, Haley Smeltz
Student Scholar Showcase
Entomophagy, or the eating of insects, has been practiced in the eastern world for centuries, however it is currently overlooked in the western nations. Studies have shown that insects, such as crickets, contain high levels of protein and minerals, however vitamin content is rarely studied. This study aims to quantify the vitamin B12 content in two cricket species, the common house cricket (Acheta domesticus) and the banded cricket (Gryllodes sigillatus). The vitamin B12 content of both cricket species will be quantified using reverse-phase high performance liquid chromatography (RP-HPLC). Prior to RP-HPLC analysis, all the …
Characterization Of Dimerization Domains On The Mannose-6-Phosphate/Insulin-Like Growth Factor 2 Receptor, Tyler Degener
Characterization Of Dimerization Domains On The Mannose-6-Phosphate/Insulin-Like Growth Factor 2 Receptor, Tyler Degener
UNO Student Research and Creative Activity Fair
The mannose-6-phosphate/insulin-like growth factor 2 (M6P/IGF2) receptor is a transmembrane protein with the ability to sequester growth factors from the extracellular matrix. This behavior links the receptor to tumor suppression. On a structural level, the extracellular portion of the protein is segmented into 15 homologous repeats, which can be divided further into 5 triplet domains, labelled 1-3, 4-6, 7-9, 10-12, and 13-15. Each triplet receptor displays its own unique ligand binding affinity, including the ability to form dimers with triplets on a second M6P/IGF2 receptor. In fact, previous studies indicate that this protein functions optimally when dimerized. Thus, the purpose …
Design, Construction, And Characterization Of A Low-Cost Spectrometer With Interchangeable Parts, Jack Godek
Design, Construction, And Characterization Of A Low-Cost Spectrometer With Interchangeable Parts, Jack Godek
UNO Student Research and Creative Activity Fair
A low-cost spectrometer was designed for the purpose of teaching spectroscopy. The spectrometer can be built by the student and contains interchangeable pieces such as slit width, grating, and lenses. This will allow the student to understand how changing these variables effects resolution. The spectrometer was constructed from PVC pipe, a plastic electrical box, and a USB webcam. The actual resolution of the spectrometer is close to the theoretical value, depending on which lens and grating is used. In addition, an extra piece can be added that allows absorption spectra to be collected. Having the student piece together the spectrometer …