surface chemistry – TechConnect Briefs

Understanding Ru/CNT interactions: A rational design of Ru nanocatalysts

Machado B.F., Oubenali M., Axet M.R., Nguyen T.T., Tunckol M., Girleanu M., Ersen O., Gerber I.C., Serp P., Laboratory of Coordination Chemistry, FR

We report a detailed study on the nature of the ruthenium–carbon nanotube (Ru/CNT) interface in catalysts prepared from neutral Ru(0) organometallic precursors. Experimental data combined with density functional theory calculations allowed to conclude that both [...]

Amino acids-conjugated gold, silver and their alloy nanoparticles: Role of surface chemistry and metal composition on peroxidase like activity

Daima H.K., Selvakannan PR., Bhargava S.K., Shastry S.K., Bansal V., Siddaganga Institute of Technology, IN

New strategies to fabricate nanomaterials of desired physicochemical properties open up new avenues to use nanomaterials for diverse biological applications. In this context, we demonstrate a green and single step synthesis method to obtain monometallic [...]

Novel mesoporous silicon particles as an efficient sustained delivery system for antibiotics

Yazdi I., Chiappini C., Weiner B., Ferrari M., Tasciotti E., The University of Texas Health Science Center at Houston, US

Delivery systems able to release antibiotics over an extended period of time can solve all these issues and provide efficacious alternative solutions to the current approaches. The ultimate objective of this study is to prove [...]

Influence of structural forces and contact hysteresis on flow-induced aggregation and breakage of polymer nanoparticles

Moussa A.S., Ehrl L., Soos M., Lattuada M., Morbidelli M., ETH Zürich, CH

Static light scattering was used on-line to monitor the flow-induced aggregation of surfactant-free polystyrene latexes in a stirred tank. Various latexes with primary particles diameters ranging between 100 and 300 nm, different charge groups, different [...]

Protein binding to particle surfaces determines intracellular interaction and uptake kinetics

Ehrenberg M., McGrath J.L., University of Rochester, US

People are exposed to nanoparticles in from varying sources and in many ways. The goal of our research is to simplify this diverse problem by establishing a systematic understanding of the properties of particles that [...]

On Chip Induced Phagocytosis for Improved Neuronal Cell Adhesion

Van Meerbergen B., Raemaekers T., Winters K., Braeken D., Bartic C., Engelborghs Y., Annaert W., Borghs G., IMEC, BE

Efficient integration of neuronal cells and electronic devices could result in hybrid bi-directional communication systems that would enable us to interact at fundamental level with biological structures and get insight in the mechanisms governing their [...]

Surface Modification Chemistries and their Utilization in Microarrays, Diagnostics and Drug Delivery

Lodhi M.A., Opperman G.W., Wall J.V., Anderson A.B., SurModics, Inc., US

Availability of DNA sequence data on numerous organisms has revolutionized the way biological queries are addressed today. Focus of activity has largely shifted from discovery to application. Things that were considered far-fetched only a few [...]

Density Functional Calculations as a Tool for the Characterization of Ultra Thin Organic Films: Synthesis and spectroscopic characterization of RDX monolayers on glass substrates

Torres P., Cotte I., Mina N., Hernandez S.P., Chamberlain R.T., Garcia J., Lareau R., Castro M.E., The University of Puerto Rico, US

Density functional theory calculations (DFT), Raman and atomic force microscopy (AFM) were employed to study the surface chemistry of ultra thin films of RDX on glass substrates. The preparation method played a major role in [...]