CAMP Annual Report: Page 3
PARTICLE SYNTHESIS AND PROPERTIES
CAMP Distinguished 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 used extensively in catalysis, electronics, and metallurgy, these materials are starting to have a significant impact in many emerging technological fields such as medicine, biology, defense, nonlinear optics, energy generation, and magnetic storage. Presently, Professor Goia has several active government and industrial grants to develop materials for defense applications, PEM (Proton Exchange Membrane) and solid oxide fuel cells, silicon based solar cells, plasma display panels, electromagnetic interference shielding, and metallurgical applications. His current work involves the development of screen printable conductive pastes for thick film microelectronics, silver dispersions for inkjet printable electronics, and core-shell metallic particles for optical and catalytic applications.
PARTICLE TRANSPORT, DEPOSITION AND REMOVAL
Computational and Experimental Techniques for Human Health and Security in Indoor Environments
Professors Ahmadi, McLaughlin, and Helenbrook, in collaboration with their colleagues at Syracuse University, are developing tools that allow for technology innovations for creating new Intelligent Environmental Quality Systems (i-EQS) for improved health and security in indoor environments. The specific objective is to develop experimentally validated computational tools for predicting the airflow and transport and migration of aerosols in the indoor environment. The study will be focused on assessing personal exposure due to exchanges between the breathing zones of occupants in indoor environments. These tools will provide the basis to develop real time prediction and control systems for intelligent built environmental systems to improve human health as well as for increased security. In addition, Professor Ahmadi is performing a computer simulation study for the Air Isolation Company in connection with their energy efficient fume hood projects.
Effectiveness of HVAC/HEPA Unit on IAQ and Asthmatic Children's Health
Poor indoor air quality has been linked to the exacerbation of asthma symptoms in children. Because people spend most of their time indoors, improving indoor air quality may provide some relief to asthma sufferers. Professors Phil Hopke and Andrea Ferro conducted a study to assess whether an air cleaning/ventilating unit (HEPAiRx®) in a child's bedroom can improve his/her respiratory health. Thirty asthmatic children were split into two groups. For the first six weeks, group A had the air cleaning/ventilating unit (HEPAiRx®) running in the bedrooms of the participants and group B did not; for the second six weeks, both groups had the cleaners running in the bedrooms; and, for the final six weeks, group A turned the cleaners off and group B kept theirs running. Temperature, relative humidity, particulate matter (PM 0.5-10µm), carbon monoxide, carbon dioxide and total volatile organic compound (TVOC) concentrations were monitored in each bedroom. To measure pulmonary inflammation, exhaled breath condensate (EBC) was collected every sixth day and analyzed for nitrate and pH. Peak expiratory flow (PEF) was also measured. PM and TVOC concentrations decreased with operation of the HEPAiRx an average of 72% and 59%, respectively. The EBC nitrate concentrations decreased significantly and the EBC pH and PEF values increased significantly when the unit operated (p < 0.001 compared to the off means). The results indicate that air cleaning in combination with ventilation can effectively reduce symptoms for asthma sufferers.
CAMP ProfessorsInvolved in Project to Develop Grid Electrostatic Precipitators
Professor John McLaughlin, Dr. Xinli Jia, and Dean of Engineering, Professor Goodarz Ahmadi, in collaboration with Mr. John Dunn, Cameron Manufacturing & Design (Horseheads, NY) are working on the development of a grid electrostatic precipitator (GEP) for removal of particulates from air. The GEP is based on a novel design that permits one to obtain much higher levels of particle removal than can be attained with conventional electrostatic precipitators. The GEP could greatly reduce the energy requirements for air purification in cleanrooms by eliminating the need for HEPA or ULPA filters. The large pressure needed to force air through HEPA or ULPA filters results in a large consumption of electric power. For example, roughly 1 million dollars a year is needed to supply electric power to four cleanrooms at the Infotonics Technology Center in Canandaigua, NY; virtually all of the power is used to force air through filters. The project is being supported by a grant from Cameron and in-kind contributions from Cameron, and the Infotonics Technology Center. A new experimental version of the GEP is currently under construction at Cameron Manufacturing & Design. Preliminary tests on the GEP will be conducted at Clarkson during the early fall. After these tests are completed, the GEP will be tested in a cleanroom at the Infotonics Technology Center. The GEP is based on a novel design that improves on the air flow dynamics so that the efficiency of charging and collecting of particulates is much greater than can be attained with conventional electrostatic precipitators.
Professor S.V. Babu Reappointed Director of Clarkson University's Center for Advanced Materials Processing
Distinguished University Professor S.V. Babu has accepted reappointment to the directorship of Clarkson University's Center for Advanced Materials Processing (CAMP), a position he has held for the past 10 years.
A professor in the Wallace H. Coulter School of Engineering Department of Chemical and Biomolecular Engineering, Babu led the Clarkson team whose recent successful efforts resulted in recertification of CAMP as a Center for Advanced Technology for a third decade of service to New York by the New York State Foundation for Science, Technology, and Innovation (NYSTAR).
In offering reappointment to Babu, Provost Thomas C. Young said that the University recognized the strength of Babu's leadership, his high level of scholarly achievement and innumerable academic and professional contributions to the University, including his efforts in enhancing the University's research profile.
"Dr. Babu has demonstrated a diverse array of strengths in leadership and scholarship during his past tenure as CAMP director," said Young. "His past service has been exemplary and his expertise will be vital to the development of opportunities, and pursuit of strategies and policies necessary to elevate our research activities in the area of material sciences and engineering. I am certain that Clarkson and CAMP's New York State industrial sector will continue to benefit greatly from Dr. Babu's visionary leadership during his next term as the director of CAMP."
Under Babu's leadership, CAMP, while strengthening its internationally recognized colloid and surface science expertise, has also developed into a world-wide leader in the field of chemical-mechanical planarization (CMP), an area of critical importance to semiconductor device manufacturing.
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