PARTICLE SYNTHESIS AND PROPERTIES
CAMP Professor Dan Goia is involved in the synthesis, characterization, and modification of ultra-fine and nanosize metallic and metal-composite particles with controlled size, shape, internal structure, composition, and surface properties. Besides being already used extensively in catalysis, electronics, metallurgy, and pigments, these materials could have a significant impact in many emerging technological fields such as medicine, biology, defense, nonlinear optics, energy generation, and magnetic storage. Professor Goia also has several active government and industrial grants to conduct research in the areas of metal and metal-composite particles for defense applications, heterogeneous metallic catalysts for PEM (Proton Exchange Membrane) and solid oxide fuel cells, precious and base metal powders for electronic components, metallic flakes for electromagnetic interference shielding, nanosize metallic particles for medical and antimicrobial applications, and metal composite powders for metallurgical applications. As a result of the research conducted under these grants, Professor Goia has already developed several novel technologies to manufacture fine, ultra-fine, and nanosize dispersed metallic particles and flakes for electronic, catalytic, metallurgical, and biological applications. The intellectual property rights for four of these technologies were already acquired by two of CAMP’s industrial partners who have scaled up the respective processes and have introduced several new products into these markets.
CAMP Professors Fendler and Roy Study Nanostructured Layered Materials for Potential Use in Biological and Chemical Sensors
In a collaborative project, CAMP Professors Janos Fendler (CAMP Distinguished Professor of the Chemistry Department) and Dipankar Roy are studying multilayered thin films that are composed of highly ordered nanomaterials. These films are fabricated by using the technique of self-assembly. Molecular self-assembly is now widely recognized as a cost-effective approach to nanofabrication of biomaterials. It often involves relatively simple and well-developed chemical techniques, and at the same time, can provide highly ordered molecular nanostructures that are precisely tailored with desired chemical properties and complex functionalities.
Research in this area by the CAMP groups is continuing, and it is expected that the new results will considerably ease the difficult task of designing nanoparticle-based high performance SPR biosensors. Currently Professors Fendler and Roy are attempting to combine FFT-EIS with the SPR technique. Their goal is to eventually achieve new types of opto-electrochemical biosensors that would have much broader capabilities than the currently available sensors based on single detection methods.
Complete lists of recently published research reports from Professors Fendler’s and Roy’s groups can be found at the following websites:
THIN FILMS AND COATINGS
Deposition of Diamond Films, Aluminum Alloy Solidification, and Contact Angle Measurements
With support from CAMP and companies, Professor Liya L. Regel continued her research on the deposition of diamond films ( not DLC) on a variety of substrates. Her group has been utilizing a new, simpler, less expensive method. Modification of this technique has permitted Professor Regel to deposit diamond at temperatures as low as 150 degrees C, which was widely believed to be impossible. Raman spectroscopy, the definitive technique for identifying the different forms of carbon, revealed very sharp crystalline diamond peaks both for faceted crystals and for polycrystalline layers formed at low temperature on polymers, glass and other substrates. Several invention disclosures have been submitted and two patent applications filed.
With funding from the Civilian Research and Development Foundation, Professor Regel and Clarkson Distinguished Professor William Wilcox worked with scientists from the Ioffe Physical Technical Institute in St. Petersburg, Russia to determine the influence of levitation and centrifugation on the microstructure and properties of aluminum alloys. Very interesting results have yielded 4 papers submitted for publication and several international presentations.
In addition with funding from NASA, an apparatus was developed for determining the influence of gas composition on surface tension and contact angle of high-melting materials using the sessile drop technique. Oxygen and hydrogen both appeared to lower the surface tension of molten Ga-doped InSb, while oxygen also lowered its contact angle on fused silica (quartz). Currently, experiments are underway with an improved apparatus and techniques using undoped InSb at lower oxygen partial pressures. A method was developed for deposition of boron nitride on silica, so that contact angle measurements can be performed on boron nitride.
Dr. William G. America has joined CAMP as the new Deputy Director. Details about him will appear in the next newsletter.
CALENDAR OF EVENTS
CAMP Fall Meeting
Potsdam, New York
October 5-7, 2005
CAMP’s Annual Technical Meeting
Canandaigua, New York
May 17-19, 2006
CAMP’s Eleventh International Symposium on Chemical-Mechanical Planarization (CMP)
Lake Placid, New York
August 13-16, 2006
CAMP Fall Meeting
Potsdam, New York
October 18-20, 2006
(For information about CAMP industrial short courses, please call Professor Richard Partch at 315-268-2351 or send email to him at email@example.com).
** Information, on these and other CAMP events, is available at the CAMP website at