Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Chad E. Reese"'
Autor:
Chad E. Reese, Sanford A. Asher
Publikováno v:
Analytical Chemistry. 75:3915-3918
We developed an optrode sensing device that utilizes a polymerized colloidal array (PCCA) photonic crystal material. This array diffracts light in the visible spectral region due to the periodic spacing of colloidal particles. The PCCA changes diffra
Publikováno v:
Applied spectroscopy. 59(12)
We built a transient absorption spectrophotometer that can determine transient absorption spectral changes that occur at times as fast as ∼200 ns and as slow as a minute. The transient absorption can be induced by a temperature-jump (T-jump) or by
Autor:
Sanford A. Asher, Chad E. Reese, Marta Kamenjicki, Aleksandr V. Mikhonin, and Alexander Tikhonov
Publikováno v:
Journal of the American Chemical Society. 126(5)
We developed a robust nanosecond photonic crystal switching material by using poly(N-isopropylacrylamide) (PNIPAM) nanogel colloidal particles that self-assemble into crystalline colloidal arrays (CCAs). The CCA was polymerized into a loose-knit hydr
Publikováno v:
Analytical and bioanalytical chemistry. 373(7)
We have developed intelligent polymerized crystalline colloidal array (IPCCA) chemical-sensing materials for detection of Pb(2+) in high ionic-strength environments such as body fluids with a detection limit of500 nmol L(-1) Pb(2+) (100 ppb). This IP
Publikováno v:
Analytical chemistry. 73(21)
We have developed a novel colorimetric reagent for the determination of Pb2+, pH, and temperature. This colorimetric reagent consists of a dispersion of approximately 100-microm particles composed of an intelligent polymerized crystalline colloidal a
Autor:
Sanford A. Asher, Chad E. Reese
Publikováno v:
Journal of colloid and interface science. 248(1)
We have developed emulsifier-free, emulsion polymerization recipes for the synthesis of highly charged, monodisperse latex particles of diameters between 500 and 1100 nm. These latexes consist of poly[styrene-(co-2-hydroxyethyl methacrylate)] spheric
Publikováno v:
Journal of colloid and interface science. 232(1)
We have developed a series of emulsion polymerization recipes for the synthesis of highly charged, monodisperse polystyrene colloids of diameters between 100-400 nm. These spherical colloidal particles were crosslinked with divinyl benzene and functi