Papers – Page 48 – TechConnect Briefs

The Design, Fabrication and Characterization of A Novel Miniature Silicon Microphone Diaphragm

Cui W., Miles R.N., Su Q., State University of New York at Binghamton, US

A novel miniature silicon microphone diaphragm is described that is highly robust when subjected to stresses that may arise during the fabrication process. Residual stress produces major challenges in the fabrication of MEMS devices. This [...]

Advancement of Prototyping and Fabrication Techniques for Active Sensors and Microelectronics

Zunino J.L., Skelton D.R., U.S. Army ARDEC, US

U.S. Army ARDEC is developing the ability to custom design and integrate novel technologies into functional systems for the creation and advancement of active systems. This research being performed will directly and indirectly support the [...]

Accommodation of Characterization Tools: Understanding the Building Vibration, Stray Electromagnetic Fields and Acoustic Interference to Avoid Catastrophic Inferences in New Building Construction or Building Renovations

Gregg A., York L., Abbie Gregg, Inc., US

Characterization tools are the cornerstone to nanoscale research including microscopy (TEM, SEM, AFM and Aberration Corrected Electron Microscopy), spectroscopy/spectrometry (NMR, FTIR, Acoustic), and advanced nano mechanical (nano scale manipulations) tools. Characterization tools are highly sensitive [...]

Automated Crystal Orientation and Phase Mapping of Iron Oxide Nano-Crystals in a Transmission Electron Microscope

Rouvimov S., Rauch E.F., Moeck P., Nicolopoulos S., Portland State University, US

An automated technique for the crystal phase and orientation mapping of polycrystalline materials in a TEM has recently beam developed. This technique is based on template matching of experimental electron diffraction spot patterns to their [...]

Structural Fingerprinting of Nanocrystals in the Transmission Electron Microscope

Moeck P., Rouvimov S., Nicolopoulos S., Portland State Unversity, US

Three novel strategies for the structurally identification of nanocrystals in a Transmission Electron Microscope (TEM) are presented. Either a single High-Resolution Transmission Electron Microscopy (HRTEM) image or a single Precession Electron Diffractogram (PED) can be [...]

Characterisation of Nanoparticle Dispersions by Size and Scattering Intensity Simultaneously

Griffiths D., Hole P., Smith J., Carr B., NanoSight USA West, US

A novel extension to the Nanoparticle Tracking and Analysis (NTA) technique is described. Previously a nanoparticle dispersion’s size distribution could be measured by simultaneously tracking many particles and directly (unlike DLS/SLS) calculating the particle size [...]

Characterization of Intracellular Biogenic Crystals Synthesized by Freshwater Magnetotactic Bacteria (MTBs)

Morillo V., Morales A., Universidad Nacional de Colombia Sede Medellín, CO

Intracellular biogenic crystals synthesized by freshwater magnetotactic bacteria (MTBs) from Colombia were characterized. MTBs were separated from water/sediment samples using a magnetic field of 6 Gauss. Bacteria were observed by transmission electronic microscopy (TEM). Bacterial [...]

Fracture of a 08KP Steel in Nano-Fragmented State

Yermishkin V.A., Tamayo M.P., Muñoz Aguirre N., Instituto Politecnico Nacional, MX

The evaluation of the resistance to the fracture toughness of metals and metal composites that work in the plastic regime require of the using of highly complex experimental methods and analysis which are not at [...]

The Role of Carbon Nanotubes in Enhancing the Effects of Chemotherapeutic Agents in Cancer Treatment

Mahmood M., University of Arkansas, US

Nanotoxicology is an important field of study that fills the knowledge gap concerning the introduction of nanomaterials into human cells, their interactions with biological systems, and the assessment of their risks to living organisms. In [...]

Effects of centrifugation on the carboxyl modified single-walled carbon nanotubes suspension

Lee B.C., Lee J.A., Lee S.M., Lee Y-H, Lee B.C., Lee J.A., Lee S.M., Lee Y-H, Lee B.C., Lee J.A., Lee S.M., Lee Y-H, Paek K-K, Ju B.K., Lee B.C., Lee J.A., Lee S.M., Lee Y-H, Korea Institute of Science and Technology(KIST), KR

In this paper, the properties of supernatant samples obtained go through steps of acids oxidation and centrifugation is characterized by UV-VIS-NIR spectroscopy and Raman spectroscopy. The ultraviolet-visible-near infrared absorption spectra of each sample show the [...]