in-situ – TechConnect Briefs

Integrated Surface-Enhanced Raman Spectroscopy Sensors for Process Monitoring

Atanasoff, G., Briber, R.M., Metting, C., Rabin, O., von Bredow, H., Zhang, K., Zhang, X., University of Maryland, US

Optical metamaterials obtain their unique properties from the combination of nanoscale plasmonic components and dielectric components. Reproducible mass-production of metamaterials is challenging but desirable for applications such as surface-enhanced Raman scattering (SERS) for chemical sensing. [...]

In-situ Characterization of Nanopowders during compaction using SANS and AC impedance spectroscopy

Gerhardt, R.A., Rudzik, T.J., Georgia Institute of Technology, US

Sintering is one of the primary methods of fabrication of ceramic materials. Therefore, a detailed understanding of the processing-property relationships for materials undergoing sintering is of great potential value. A new testing method combining small [...]

In Situ Health Monitoring of Piezoelectric Sensors

Jensen, S.L., NASA - Stennis Space Center, US

The technology developed is an in-situ measurement system for monitoring the performance of piezoelectronic sensors, particularly accelerometers. With this technology, characteristics such as resonant frequency, response, cable status, connectivity, bonding and linear range, can be [...]

In Situ Generated Turbostratic Graphite: A New Family of Self Lubricating Iron Based Composites

Binder, C., Binder, R., Consoni, D.R., de Mello, J.D.B., Hammes, G., Klein, A.N., Schroeder, R., Universidade Federal de Santa Catarina, BR

In this paper we present a new processing route able to produce a homogeneous dispersion of in situ generated, discrete solid lubricant particles in the volume of sintered steels produced by metal injection molding. Preliminary [...]

Early Stages of Particle Formation by in-situ UV-Vis and HRS

Peukert, W., Schürer, B., Segets, D., University of Erlangen-Nuremberg, DE

We present a new approach for the study of early states of particle formation that can be applied also for precipitation processes that occur on a millisecond timescale. A T-shaped micro-mixer is used to precipitate [...]

In-situ techniques in optical spectroscopy for the analysis of carbon nanotubes

Freihofer, G., Mohan, B., Raghavan, S., University of Central Florida, US

Optical Spectroscopy has shown promise as a fundamental characterization tool for carbon nanotubes (CNTs). With the potential of CNTs being utilized for aerospace applications, in-situ techniques including temperature and strain measurements with spectroscopy, are gaining [...]

In-situ Surface Characterization of Nano- and Microparticles by Optical Second Harmonic Generation

Peschel, U., Peukert, W., Schürer, B., Wunderlich, S., University of Erlangen-Nuremberg, DE

We use optical Second Harmonic Generation (SHG) to probe different kinds of surface properties of dispersed particle systems in in-situ and in real time. Examples for applications are the direct study of molecular adsorption at [...]

In-Situ Nanomechanical-Electrical Testing of One-Dimensional Materials

Yap, Y.K., Yassar, R.S., Michigan Technological University, US

One-dimensional nanomaterials including nanotubes are building blocks for constructing various complex nanodevices. Boron nitride (BN) nanotubes with structure similar to carbon nanotube are known to be among the strongest insulators in the world. In this [...]

Effect of Particle Morphology and Content on the Properties of Palladium/Polycarbonate Nanocomposites

Atre, S.V., Onbattuvelli, V.P., Ostroverkhova, O., Pillai, V.K., Oregon State University, US

Influence of Pd particle size and Pd content on the properties of the Pd/PC nanocomposites was investigated. Nanocomposites with varying Pd content were synthesized via the ex situ and in situ methods. Discrete Pd nanoparticles [...]

Quantum dot (Qdot) labeling of gene expression analysis and single molecule imaging in neurons

Byrnes, E., Dee, N., Jeromin, A., Jones, A., Parry, S., Riley, Z., Smith, S., Allen Institute for Brain Science, US

The Allen Brain Atlas1 is the first large scale atlas of gene expression in the mouse brain, using chromogenic in situ hybridization (cISH) of over 20,000 genes.Qdots have excellent potential for muliplex imaging of gene [...]