surface – TechConnect Briefs

SEM Characterization of Adipose Tissue Structure

Brimiene V., Skaudzius R., Misevicius M., Brimas E., Brimas G., Brimas E., Brimas G., Kareiva A., Vilnius University, LT

In this work the scanning electron microscopy (SEM) was used for the characterization of adipose tissue samples taken from volunteer obese patients. The adipose tissue was taken from 3 layers of adipose tissue (subcutaneous, preperitoneal [...]

Influence of metallic, ceramic, and plastic MALDI surface materials on the ionization efficiency and quality of mass spectrometric data

Hieke A., Stanford University, School of Medicine, US

Imperfections of the MALDI ionization process of proteins and peptides impose considerable limitations on the utility of mass spectrometry in basic life sciences and ultimately on the application in biomarker discovery and medical diagnostics. Improved [...]

An explosive impact technique to nanocrystallize and harden surface of metal materials

Tong S.J., Tong Z., Shi Z.M., Tong S.J., Tong Z., Inner Mongoli University of Technology, CN

An explosive impact surface nanorisation technique (EISNT) was developed to prepare nanostructured surface layers on medium carbon steel (MCS) and pure Copper (PC) plates. The plastic deformation involved the entire plate depth of 4-6 mm, [...]

Single Particle Resolution Zeta Potential Technique

Griffiths D., Bernt W., Hole P., Sullivan J., Malloy A., Carr B., NanoSight USA, US

A novel addition to a technique for the analysis of nanoparticles in a suspension is described. The Nanoparticle Tracking Analysis (NTA) technique visualizes then sizes individual nanoparticles, based on their Brownian motion. Unlike classical light [...]

Nano Silver – Why It is so Hot Now?

Lem K.W., Haw J.R., Lee D.S., Brumlik C., Sund S., Curran S., Smith P., Brauer S., Schmidt D., Konkuk University, KR

It has been known for centuries that silver has an antiseptic effect. In ancient times, many Greeks used silver vessels for drinking water storage. Koreans have also chosen silver to make their metal chopsticks. Recently, [...]

Super-hydrophobic and/or Super-hydrophilic Surfaces Made by Plasma Process

Chen L., Henein G., Liddle J.A., National Institute of Standards and Technology, US

Superhydrophobic and superhydrophilic surfaces are generally made by modifying the surface with chemistry and introducing roughness or patterns on surfaces. The processes are generally complex and time-consuming. In this paper, we introduce a simple and [...]

Analytical Methods for Nanotechnology

Mowat I.A., Moskito J., Ward I, Hartzell A., Evans Analytical Group, US

Growth in the fabrication of micro- and nano- engineered materials and systems has led to increased demand for analytical and characterization methods for these materials and systems. Many of the new manufacturing methods are extensions [...]

Glycosaminoglycan model glass substrates and cancer cell interactions

Peramo A., Wright G., Meads M.B., Dalton W.S., Matthews G., University of South Florida, US

The static adhesion of three cancer cell lines to surfaces functionalized with glycosaminoglycans was performed and the possible involvement of heparanase in this process was analyzed. Four different glycosaminoglycans (heparan sulfate, chondroitin sulfate A, chondroitin [...]

Adsorption of PTDCA on Si(100) and Si(100)-H

Soubiron T., Vaurette F., Grandidier B., Wallart X., Nys J.P., Stiévenard D., IEMN (UMR8520, CNRS), Dpt ISEN, FR

Submonolayer coverages of perylene-tetracarboxylic-dianhydride (PTCDA) molecules have been investigated with scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS). At high coverage, X-ray measurements indicate that only a fraction of the molecules are chemisorbed and [...]

Raman Spectroscopy Study of SOx Species Adsorbed on Au Nanocluster Surfaces

Posada B., Mercado L., Hernandez S., Castro M., Castro W., Murillo L., Briano J., Irizarry R., Ishikawa Y., Castro M., Castro W., The University of Puerto Rico at Mayaguez, US

The reduction of Au3+ with SO3-2 is known to lead to the formation of gold nanoculsters and SO4-2 : n Au3+ + SO3-2 à + Aun + SO4-2 equation 1 This reaction is fundamental in [...]