The need for high-performance, solid-state
H2 gas sensors is one research effort aimed
at enabling the future hydrogen economy.
Improving the gas-sensing properties of
semiconducting oxide materials such as tin
oxide, zinc oxide, etc., necessitates the
control microstructure and composition.
This study compares the effect of
dimensionality with the effect...
Magnetic resonance imaging (MRI) is a
powerful technique used in clinical
medicine and biomedical research to
conduct noninvasive imaging of tissues and
organisms. Chelated gadolinium is often
used as an MRI contrast agent to improve
the spatial resolution of these images.
Recently developed “smart” MRI contrast
agents respond to specific...
This research illustrates the modification of
an iodostyrene layer on a Si(111) surface
using a Sonogashira reaction. This was
accomplished by applying UV irradiation
(254 nm) to a hydrogen-passivated silicon
surface in a solution of iodostyrene in
benzene, followed by a Sonogashira
coupling between the iodine group from
iodostyrene and...
This research investigated the feasibility of
patterning with sol-gels using a nanofountain
probe in an atomic force microscope.
Two oxide sols — barium titanate and
cobalt ferrite — were used as inks in
patterning tests using fountain-pen
nanolithography (FPN). This was shown to
be a suitable method of depositing sol-gels...
The objective of this program is to measure the changes in the properties of the C-S-H gel phase in cement paste as a function of the Ca/Si ratio. The motivation is to better understand the hydration products that form in blended cements with lower Ca/Si ratios than portland cement. The...
Recent years have seen intense interest in the development of point-of-care nucleic acid diagnostic technologies to address the scaling limitations of laboratory-based approaches. Chief among these are combinations of isothermal amplification approaches with CRISPR-based detection and read outs of target products. Here, we contribute to the growing body of rapid,...
A noncomprehensive list of large urban fires in the 1850s United States. All fires were large enough to destroy 20 structures or do $200,000 in damage (in 1850s dollars). Some fires are included on the basis of verbal descriptions (e.g., "downtown destroyed") that suggest that the fires were of this...
Lack of access to safe drinking water is a global problem, and methods to reliably and easily detect contaminants could be transformative. We report the development of a cell-free in vitro transcription system that uses RNA Output Sensors Activated by Ligand Induction (ROSALIND) to detect contaminants in water. A combination...
This study is in consideration of the spread of COVID-19, the related various government responses, and how these responses and other demographic variables affected the spread and severity of the virus on a domestic (United States) and international level. During the last few months, the virus has spread from its...