Papers – Page 69 – TechConnect Briefs

Design and characteristics of an optical nanosensor based on immobilization of MWCNTs-g-PCA-Au on a triacetylcellulose membrane for determination trace amounts of thiourea

Sarlak N., Sameri Z., Meyer T.J., Shaabani K., Pourrahim R., University of North Carolina at Chapel Hill, US

The characterization of an optical absorption based one-shot sensor is described for the determination of thiourea based on the immobilization of new nanocomposite of MWCNT-graft-poly(citric acid)/Au on a triacetylcellulose membrane. So Multiwalled carbon nanotubes were [...]

Super-hydrophobic paper influence on bacterial attachment suggests potential application as packaging material

Jain S., Li L., Breedveld V., Hess D.W., Barnett C., Davis M., Singh S., Pillai S., Alabama State University, US

The surface topography and chemistry of cellulose-based paper, was controlled by a two-step plasma (glow discharge) treatment. Selective plasma etching of the amorphous regions of cellulose followed by plasma deposition of a thin (100 nm) [...]

Parametric Study on the Effect of Radiation Heat Loss and Non-Constant Heating in the Electrothermal Technique for Thermal Property Measurement of Micro/Nanoscale Fibers

Xing C., Munro T., Jensen C., Ban H., Utah State University, US

This paper presents a parametric study of the effects of radiation heat loss and non-constant heating on the measurement accuracy of thermal properties of micro/nanoscale fibers using the Transient Electrothermal technique. In the original derivation, [...]

Characterizing Thermal Diffusivity of Synthetic Spider Silk using Improved Transient Electrothermal Technique

Munro T., Xing C., Jensen C., Copeland C., Ban H., Lewis R., Utah State University, US

This paper presents results for the thermal diffusivity of a synthetically produced spider silk. This synthetic spider silk is being developed for lightweight thermal management applications. Additionally, an improved method for measurement of the thermal [...]

Well trap structures and bulk-nano environment luminescence centers in CaZnGe2O6:Tb3+ long afterglow phosphor

Woo B.K., Li Y., Singh S.P., Multimedia University, MY

A long afterglow phosphor CaZnGe2O6:Tb3+ has been prepared by using organic coated luminescence ZnO nanopowder through a high temperature solid-state reaction route. This new CaZnGe2O6:Tb3+ long afterglow phosphor sample emits the Tb3+ green fluorescence 543 [...]

Soybean meal nano scales resistant starch- model carbohydrates for encapsulation of bioactive compounds

Sivapragasam N., Petrović D., Thavarajaha P., Thavarajahc D., North Dakota State University, US

The research focus is on encapsulating materials like drugs and nutrients specifically for colon using resistant starch. As a representation a model system is developed by encapsulating glass bead and experimenting the suitability to be [...]

The distribution of engineered nanoparticles (ENPs) in municipal wastewater treatment systems

Choi S., Eichhorn J., Johnston M., Huang C.P., University of Delaware, US

The objective of this research was to develop a method reliable for the detection and quantification of engineered nanoparticles in municipal wastewater treatment systems. Wastewater and sludge samples were sampled from four regional municipal wastewater [...]

Impedance and Dielectric Spectroscopy of Nanoparticulate Films and Composites

Gerhardt R.A., Georgia Institute of Technology, US

This paper will describe the ways in which one can use impedance and dielectric spectroscopy for characterizing nanoparticulate thin films and composites. This technique is especially useful for these types of materials because it is [...]

The influence of technique on the measured particle size distribution of complex nanoparticle systems

Jämting Å.K., Roy M., Catchpoole H.J., Lawn M., Babic B., Coleman V.A., Herrmann J., National Measurement Institute Australia, AU

Accurate and reliable characterization of nanoparticles is crucial for both industrial applica-tions and studies of their toxicological and environmental impacts. Particle size distribution (PSD) has been widely recognised as one of the key parameters that [...]

Characterizing the Minimal Information about Nanomaterials and Bringing Data Together to Accelerate Discover

Ostraat M.L., Murry D., Mills K.C., Guzan K.A., RTI International, US

Nanomaterials are being widely incorporated into consumer products and are being used in studies and procedures to improve human health. Although there are benefits of using nanomaterials, there may also be unintended risks. There is [...]