Stan C. Davis

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Whereas considerable interest exists in self-assembly of well-ordered, porous "inverse opal" structures for optical, electronic, and (bio)chemical applications, uncontrolled defect formation has limited the scale-up and practicality of such approaches. Here we demonstrate a new method for assembling highly ordered, crack-free inverse opal films over a(More)
Owing to its attractive optical and electrical properties, large surface to volume ratio, and ease of surface modifi cation, porous silicon (pSi) has been extensively studied in a variety of applications, such as light emitting diodes, [ 1 ] photodetectors, [ 2 ] optical switches, [ 3 ] lithium ion batteries, [ 4 ] and label-free optical detection of(More)
Whereas considerable interest exists in self-assembly of well-ordered, porous "inverse opal" structures for optical, electronic, and (bio)chemical applications, uncontrolled defect formation has limited the scale-up and practicality of such approaches. Here we demonstrate a new method for assembling highly ordered, crack-free inverse opal films over a(More)
The conceptual development and piloting of an innovative water treatment system for process water produced by a uranium mine mill is described. The process incorporates lime/CO2 softening (Stage 1), reverse osmosis (Stage 2) and biopolishing (Stage 3) to produce water of quality suitable for release to the receiving environment. Comprehensive performance(More)
Electrospray mass spectrometry (ES/MS) and matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI/TOF/MS) were used to provide mass spectra from seven elapid snake venoms. Spectral interpretation was much simpler for MALDI/TOF/MS. ES/MS proved more useful for the provision of molecular weight data for very closely related(More)
Colloidal self-assembly holds promise for photonic applications as a solution-based, low-cost alternative to top-down photolithography, if significant control of uniformity and defects can be achieved. Herein we demonstrate a new evaporative co-assembly method for highly-uniform inverse opal thin films that involves the self-assembly of polymer colloids in(More)
We develop a model for silicon-on-insulator microresonators with magnesiothermically-formed porous silicon cladding possessing three-dimensional interconnected pores. Investigation of waveguide design and geometrical parameters indicates an optimized areal mass sensitivity of ~ 0.2 pm/(pg/mm<sup>2</sup>).
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