Articles by Satinderpall S. Pannu in JoVE
Insertion of Flexible Neural Probes Using Rigid Stiffeners Attached with Biodissolvable Adhesive Sarah H. Felix1, Kedar G. Shah1, Vanessa M. Tolosa1, Heeral J. Sheth1, Angela C. Tooker1, Terri L. Delima1, Shantanu P. Jadhav2, Loren M. Frank2, Satinderpall S. Pannu1 1Materials Engineering Division, Lawrence Livermore National Laboratory, 2UCSF Center for Integrative Neuroscience and the Department of Physiology, University of California, San Francisco Insertion of flexible neural microelectrode probes is enabled by attaching probes to rigid stiffeners with polyethylene glycol (PEG). A unique assembly process ensures uniform and repeatable attachment. After insertion into tissue, the PEG dissolves and the stiffener is extracted. An in vitro test method evaluates the technique in agarose gel.
Other articles by Satinderpall S. Pannu on PubMed
The Zeta Potential of Surface-functionalized Metallic Nanorod Particles in Aqueous Solution Electrophoresis. Mar, 2008 | Pubmed ID: 18246574 Metallic nanoparticles suspended in aqueous solutions and functionalized with chemical and biological surface coatings are important elements in basic and applied nanoscience research. Many applications require an understanding of the electrokinetic or colloidal properties of such particles. We describe the results of experiments to measure the zeta potential of metallic nanorod particles in aqueous saline solutions, including the effects of pH, ionic strength, metallic composition, and surface functionalization state. Particle substrates tested include gold, silver, and palladium monometallic particles as well as gold/silver bimetallic particles. Surface functionalization conditions included 11-mercaptoundecanoic acid (MUA), mercaptoethanol (ME), and mercaptoethanesulfonic acid (MESA) self-assembled monolayers (SAMs), as well as MUA layers subsequently derivatized with proteins. For comparison, we present zeta potential data for typical charge-stabilized polystyrene particles. We compare experimental zeta potential data with theoretically predicted values for SAM-coated and bimetallic particles. The results of these studies are useful in predicting and controlling the aggregation, adhesion, and transport of functionalized metallic nanoparticles within microfluidic devices and other systems.