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Filtering by: Creator Colvin, Kurt Academic Affiliation Chemistry

Improvements in synthesis and response techniques of ion-selective sensors

Creator:

Pylypiuk, Nataliia

Abstract:

Two improvements to the established procedures for synthesis and response detection of ion-selective optical sensors (optodes) were introduced. The first improvement addresses the drawback of organic dye (optode-localized chromoionophore) photobleaching. This positively impacts fluorescence response and allows for (1) direct measurement of hydrogen ion activity upon binding with the dye,...

Resource Type:

Masters Thesis
Natural product synthesis via cyclobutanes : part I, Asymmetric synthesis of (+)-byssochlamic acid, part II, An approach to the nootropic agent huperzine A

Creator:

Kim, Jungchul

Abstract:

PART I. Asymmetric syntheses of both natural (+)- and nonnatural (-)-byssochlamic acid via a [2+2] photoaddition-cycloreversion strategy are described. X-ray crystallographic analysis of the cyclohexylamine salt 99 showed that the structure of the monomethyl ester 100 from esterase hydrolysis of 44 was originally misassigned as 56. The enantiomeric relationship of...

Resource Type:

Dissertation

Full Text:

. Robarge, Joshua D. Hansen, Kurt F. Sundermann, Sundaram M. Shanmugham, Christopher M. Lincoln, Punlop