Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Girija Gaur"'
Autor:
Sharon M. Weiss, Scott T. Retterer, Shuren Hu, Girija Gaur, Raymond L. Mernaugh, Ivan I. Kravchenko
Publikováno v:
Sensors and Actuators B: Chemical. 275:394-401
Highly sensitive detection of heat denatured Herceptin® (trastuzumab), an important monoclonal antibody used in breast cancer therapeutics, is demonstrated using transverse magnetic (TM) mode suspended microring resonators (MRRs). The suspended MRRs
Publikováno v:
Wide Bandgap Power and Energy Devices and Applications III.
Three-dimensional nanoporous silicon (PSi), with inherently large surface areas, tunable pore sizes, film thicknesses, and effective refractive indices, has been utilized as a platform for the detection of biomolecules and high-dose radiation. A brie
Autor:
Tengfei Cao, Yiliang Zhao, Sharon M. Weiss, Gilberto A. Rodriguez, Yasmin M. Graham, Girija Gaur
Publikováno v:
SPIE Proceedings.
The formation of resonant photonic structures in porous silicon leverages the benefit of high surface area for improved molecular capture that is characteristic of porous materials with the advantage of high detection sensitivity that is a feature of
Publikováno v:
Advanced Functional Materials. 23:3604-3614
Highly sensitive dual-mode labeled detection of biotin in well-characterized porous silicon (PSi) films using colloidal quantum dots (QDs) as signal amplifiers are demonstrated. Optimization of the PSi platform for targeted QD infiltration and immobi
Publikováno v:
Analytical chemistry. 88(22)
A flow-through sensing platform based on open-ended porous silicon (PSi) microcavity membranes that are compatible with integration in on-chip sensor arrays is demonstrated. Due to the high aspect ratio of PSi nanopores, the performance of closed-end
Publikováno v:
Nanoscale Research Letters
Efficient mass transport through porous networks is essential for achieving rapid response times in sensing applications utilizing porous materials. In this work, we show that open-ended porous membranes can overcome diffusion challenges experienced
Autor:
Sharon M. Weiss, Girija Gaur, Robert A. Reed, Dmitry S. Koktysh, Daniel M. Fleetwood, Robert A. Weller, Bridget R. Rogers
Publikováno v:
ACS applied materialsinterfaces. 8(12)
We investigate the influence of high energy photons and thiol ligands on the photophysical properties of sub-monolayer CdTe/CdS quantum dots (QDs) immobilized in porous silica (PSiO2) scaffolds. The highly disperse, uniform distributions of QDs in a
Autor:
Sharon M. Weiss, Philippe M. Fauchet, Girija Gaur, Stanley M. Lo, Yiorgos Kostoulas, Shuren Hu
Publikováno v:
Optics Express. 25:7046
A label-free optical biosensor based on a one-dimensional photonic crystal microring resonator with enhanced light-matter interaction is demonstrated. More than a 2-fold improvement in volumetric and surface sensing sensitivity is achieved compared t
Autor:
Dmitry S. Koktysh, Daniel M. Fleetwood, Robert A. Weller, Robert A. Reed, Girija Gaur, Sharon M. Weiss
Publikováno v:
SPIE Proceedings.
The effects of X-ray and gamma irradiation on the optical properties of CdTe/CdS quantum dots (QDs) immobilized in a functionalized porous silicon film have been investigated via continuous wave and time-resolved photoluminescence measurements. Carri
Publikováno v:
MRS Proceedings. 1301
We aim to utilize the high surface area of a porous silicon (PSi) matrix coupled with semiconductor quantum dot (QD) amplifiers for ultrasensitive optical detection of small biomolecules using a dual-mode detection scheme. In our system, QDs attached