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Ligands For Complexation, Extraction, And Sensing Of Mercury(Ii) For Application To High-Level Waste (Hlw) At The Savannah River Site (Srs), Adenike O. Fasiku
Ligands For Complexation, Extraction, And Sensing Of Mercury(Ii) For Application To High-Level Waste (Hlw) At The Savannah River Site (Srs), Adenike O. Fasiku
FIU Electronic Theses and Dissertations
Mercury (Hg) separation and sensing is of high significance due to Hg(II) environmental mobility and toxicity. Furthermore, the use of Hg in nuclear applications has resulted in its accumulation in several DOE sites, such as in Oak Ridge and Savannah River reservations. Organic mercury species have been found in low activity waste (LAW) streams resulting from high-level waste (HLW) processing at the Savannah River Site (SRS), therefore posing a threat to humans and the environment. Mercury, being a soft Lewis acid, has a strong affinity for softer Lewis bases, such as S- or N-donor ligands. Therefore, we focus on …
Purine Nucleosides Modified At C8 Or C2 Position With (Β-Halo)Vinylsulfone And Β-Ketosulfone Reactive Groups And Their Incorporation Into Dna: Synthesis Of The Organoarsenical Antibiotic Arsinothricin And Polyaromatic Hydrocarbons, Md Abu Hasan Howlader
FIU Electronic Theses and Dissertations
Modified nucleosides gained great attention as potential anticancer and antiviral therapeutics. In this dissertation, synthesis and reactivity of (β-iodovinyl)sulfone and β-ketosulfone groups incorporated into purine nucleosides at C8 or C2 positions and DNA incorporation of their 5' triphosphates have been developed. Moreover, synthesis of novel antibiotic arsinothricin (AST) as well as polycyclic aromatic hydrocarbons (PAHs) have been discussed. The 8-(1-iodo-2-tosylvinyl)-2'-deoxyadenosine and 8-(1-Iodo-2-tosylvinyl)adenosine were synthesized employing iodovinylsulfonation of 8-ethynyl precursors with TsNa/I2/NaOAc. The 8-(β-iodovinyl)sulfonyl-2'-deoxyguanosine was prepared via radical mediated iodovinylsulfonation of 8-ethynyl-2'-deoxyguanosine with TsNHNH2/KI/(BzO)2. Conformationally different C2 substituted isomeric adenosine analogues were prepared by iodovinylsulfonation …
Evaluation Of Harvesting Time For Industrial Hemp (Cannabis Sativa L,) Pilot Project Varieties Grown In South Florida, Jordan W. Prats
Evaluation Of Harvesting Time For Industrial Hemp (Cannabis Sativa L,) Pilot Project Varieties Grown In South Florida, Jordan W. Prats
FIU Electronic Theses and Dissertations
A field study was conducted to observe the natural development of cannabinoids in three daylength sensitive industrial hemp varieties Bubba Kush (BK), Emerald Flower (EF), and Golden Sunset (GS). Plants were configured in a randomized block design with 3 replications. Once 50% of the plants within a variety reached reproductive growth, plants were sampled weekly until senescence and analyzed through a HPLC-UV/DAD. The results from the study indicate that all three varieties of industrial hemp tested in field study reached reproductive growth within the first week of transplanting. This is due to a 12-hour day-length at the time and the …