Papers – Page 650 – TechConnect Briefs

Silica-alumina composite monoliths with a hierarchical pore structure containing the MFI-type zeolitic films

Pudlo W., Pashkova V., Derewinski M., Jarzebski A.B., Institute of Chemical Engineering, Polish Academy of Sciences, PL

Materials with multimodal hierarchical porosity, containing pore networks in the range of micro-, meso- and macropores, attract considerable attention owing to their widespread application prospects in process industries (catalysts, sorbents), energy conversion and sensors. Here [...]

Thermal and Mechanical Response of POSS coated Nanophased expandable foam core materials

Jones W.D., Rangari V.K., Jeelani S., Tuskegee University, US

A sonochemical technique has been established to coat variations of POSS nanoparticles on expandable microspheres. Thermal analyses results indicate that there is an increase in thermal stability of nanophased foam as compared to the neat [...]

Plasma Treatment of Nanofillers for Polymer Nanocomposites

Ritts A.C., Yu Q., Li H., University of Missouri-Columbia, US

Nanofillers were functionalized with amine groups using low-temperature plasma to enhance dispersion and interfacial tension with Epon 815C resin. The amine groups remained on the coating surface were anticipated to strengthen the interfacial interactions through [...]

Refined coarse-grain modeling of stamp deformation in nanoimprint lithography

Merino S., Retolaza A., Juarros A., Schift H., Sirotkin V., Svintsov A., Zaitsev S., IMT RAS, RU

The inhomogeneous distribution of the residual layer thickness is a vital issue in nanoimprint lithography (NIL). Using the simulation of NIL, this problem can be alleviated by optimizing the stamp geometry and by choosing process [...]

Nanotechnology for Building Security

Elvin G., Green Technology Forum, US

Despite increased vigilance and annual federal anti-terrorism spending in excess of $55 billion, building security remains a major concern for most Americans. For those working in large governmental or institutional buildings, fears are particularly acute. [...]

Molecular Dynamics of Self-Assembled Monolayer Formation in Soft Nanolithgoraphy

Heo D., Yang M., Jang J., Pusan National University, KR

Molecular dynamics simulation is performed to study the growth mechanism of self-assembled monolayer in the AFM tip-assisted soft nanolithography such as in dip-pen nanolithography [1]. We investigate how the droplet created around the tip spreads [...]

Effect of surfactants on the size-distribution of starch nanoparticles during wet grinding

Bukhari N.I., Kang Y.B., Hay Y.K., Majeed A.B.A., Nadeem M., Bai S.H., International Medical University, MY

1School of Pharmacy, International Medical University, Kuala Lumpur, 2School of Pharmaceutical Sciences, University Science Malaysia, Penang, 3Faculty of Pharmacy, University Technology MARA, Kuala Lumpur. 4Chemcial Engineering Department, University Technology PETRONAS, Perak, Malaysia. Abstract: Various kinds [...]

Raman study and DFT calculations of amino acids

Sonois V., Estève A., Zwick A., Faller P., Bacsa W., CEMES CNRS Univ Toulouse, FR

Previously we reported intense and narrow vibrational Raman bands of the amino acid histidine grown from droplets of aqueous histidine on silica (Sonois et al., 2007, Chem. Phys. Lett., 439, 360-363). In the present communication [...]

Conformational Changes of Acetylcholine During Spontaneous Diffusion Through a Nano/Microporous Gel: Towards a Novel Approach to Biomolecular Hardware

Vaganova E., Yitzchaik S., Ovadia H., Lyshevski S.E., Khodorkovsky V., Pierola I.F., The Hebrew University, IL

This paper reports the results which intent to enhance the understanding of mechanisms and transitions taking place in biological systems. In order to mimic these low energy processes in natural systems, as well as to [...]

Nanoporous Alumina Membranes Based Microdevices for Ultrasensitive Protein Detection

Bothara M.G., Reddy R.K., Barrett T., Carruthers J., Prasad S., Portland State University, US

This research focuses on using the electrical and chemical properties of nanoporous alumina membranes to improve the sensitivity and performance of Si-based microdevices for protein sensing. The integration of nanoporous membranes with the microdevice results [...]