Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Adam J, Morris"'
Autor:
Ryan P, Radecki, Kevin F, Foley, Timothy S, Elzinga, Cynthia P, Horak, Thomas E, Gant, Heather M, Papp, Adam J, Morris, Natalie R, Hauser, Briar L, Ertz-Berger
Publikováno v:
The American journal of managed care. 25(5)
Patients with chest pain and concern for potential coronary ischemia are frequently referred to the emergency department (ED), resulting in substantial resource utilization and cost. The objective of this study was to implement a protocol for urgent
Publikováno v:
The Journal of Physical Chemistry Letters. 3:2840-2844
Ultrafast transient absorption measurements reveal that the rate constant for photoinduced electron transfer (PET) from colloidal CdS quantum dots (QDs) to alkylcarboxylate-functionalized viologens is independent of the number of methylene groups in
Publikováno v:
Chemistry of Materials. 25:1155-1165
This review outlines the set of technical approaches to answering three major questions about the surface chemistry of colloidal semiconductor quantum dots (QDs): (i) What is the chemical structure of the ligands on the surface of the QD? (ii) How ma
Autor:
Daniel B. Tice, Emily A. Weiss, Kathryn E. Knowles, Matthew T. Frederick, Adam J. Morris-Cohen
Publikováno v:
The Journal of Physical Chemistry Letters. 3:18-26
This Perspective discusses recent work on mechanisms by which organic ligands affect the electronic structure and exciton dynamics of colloidal quantum dots (QDs). Much of the work described here uses some combination of steady-state absorption, tran
Publikováno v:
ACS Nano. 6:557-565
A study of the adsorption equilibrium of solution-phase CdS quantum dots (QDs) and acid-derivatized viologen ligands (N-[1-heptyl],N'-[3-carboxypropyl]-4,4'-bipyridinium dihexafluorophosphate, V(2+)) reveals that the structure of the surfaces of the
Autor:
Matthew T. Frederick, Adam J. Morris-Cohen, Eric A. McArthur, G. Daniel Lilly, Emily A. Weiss
Publikováno v:
The Journal of Physical Chemistry Letters. 1:1078-1081
The ratio of Cd to Se (Cd/Se) within colloidal CdSe quantum dots (QDs) synthesized with 90% trioctylphosphine oxide (TOPO) as the coordinating solvent increases from 1.2:1 for QDs with radius R ≥ 3.3 nm to 6.5:1 for R = 1.9 nm, as measured by induc
Publikováno v:
The Journal of Physical Chemistry C. 114:897-906
This paper describes a quantitative analysis of the chemical composition of organic/inorganic interfaces of colloidal 3.1-nm CdSe quantum dots (QDs) synthesized with trioctylphosphine oxide (TOPO) as the coordinating solvent and purified by successiv
Publikováno v:
Journal of the American Chemical Society. 135(18)
Two-dimensional diffusion ordered spectroscopy (2D DOSY) NMR was used to probe the micellar structure of sodium dodecyl sulfate (SDS) and sodium cholate (SC) in aqueous solutions with and without semiconducting and metallic single-walled carbon nanot
Autor:
Emily A. Weiss, Adam J. Morris-Cohen, Daniel B. Tice, Mario Tagliazucchi, Christina M. Sweeney
Publikováno v:
ACS nano. 5(12)
This paper describes a study of the rates of photoinduced electron transfer (PET) from CdSe quantum dots (QDs) to poly(viologen) within thin films, as a function of the length of the ligands passivating the QDs. Ultrafast (10 ps), quantitative PET oc
Publikováno v:
Journal of the American Chemical Society. 133(26)
Transient absorption (TA) spectroscopy of solution-phase mixtures of colloidal CdS quantum dots (QDs) with acid-derivatized viologen molecules, N-[1-heptyl],N'-[3-carboxypropyl]-4,4'-bipyridinium dihexafluorophosphate (V(2+)), indicates electron tran