
NSF Org: |
CMMI Division of Civil, Mechanical, and Manufacturing Innovation |
Recipient: |
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Initial Amendment Date: | August 23, 2012 |
Latest Amendment Date: | August 23, 2012 |
Award Number: | 1200180 |
Award Instrument: | Standard Grant |
Program Manager: |
Alexis Lewis
alewis@nsf.gov (703)292-2624 CMMI Division of Civil, Mechanical, and Manufacturing Innovation ENG Directorate for Engineering |
Start Date: | September 1, 2012 |
End Date: | August 31, 2016 (Estimated) |
Total Intended Award Amount: | $202,725.00 |
Total Awarded Amount to Date: | $202,725.00 |
Funds Obligated to Date: |
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History of Investigator: |
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Recipient Sponsored Research Office: |
8 CLARKSON AVE POTSDAM NY US 13676-1401 (315)268-6475 |
Sponsor Congressional District: |
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Primary Place of Performance: |
8 Clarkson Avenue Potsdam NY US 13676-1401 |
Primary Place of
Performance Congressional District: |
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Unique Entity Identifier (UEI): |
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Parent UEI: |
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NSF Program(s): | MATERIALS AND SURFACE ENG |
Primary Program Source: |
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Program Reference Code(s): |
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Program Element Code(s): |
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Award Agency Code: | 4900 |
Fund Agency Code: | 4900 |
Assistance Listing Number(s): | 47.041 |
ABSTRACT
The research objective of this grant is to elucidate the fundamental processes of the oxygen transport, permeability, and release in porous, metal oxide supported biofunctionalized membranes, as materials for bioelectrodes and biofuel cells. The research project will study the catalytic, redox, and oxygen storage and release properties of metal doped and mixed metal oxides within a porous tridimensional network that will be used to fabricate "oxygen-rich" surfaces that are able to operate under physiological and ambient temperature conditions. A suite of spectroscopic, electrochemical, and scanning electrochemical microscopy methods will be used to facilitate understanding of the oxygen transport mechanism at the enzyme/doped metal oxide interface in the porous layer and to establish correlations between composition, morphology, and corresponding bioelectrocatalytic performance. This research will improve oxygen availability and permeability at surfaces, enhancing the overall performance of bioelectrodes.
If successful, this interdisciplinary collaborative effort will enable development of a new generation of materials and surfaces that can be used in oxygen restrictive conditions. This research introduces a unique technology in the field of bioelectrochemistry and biofuel cells for facilitating oxygen mobility and providing storage/release capabilities. This research project will promote innovation and development of critical thinking skills in all aspects of student training to develop a foundation of knowledge that will enable future discoveries. Graduate and undergraduate students, especially minorities and women, will participate in this research. K12 students and teachers will be exposed to this research through established mechanisms at the two collaborating institutions.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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PROJECT OUTCOMES REPORT
Disclaimer
This Project Outcomes Report for the General Public is displayed verbatim as submitted by the Principal Investigator (PI) for this award. Any opinions, findings, and conclusions or recommendations expressed in this Report are those of the PI and do not necessarily reflect the views of the National Science Foundation; NSF has not approved or endorsed its content.
"This Project Outcomes Report for the General Public is displayed verbatim as submitted by the Principal Investigator (PI) for this award. Any opinions, findings, and conclusions or recommendations expressed in this Report are those of the PI and do not necessarily reflect the views of the National Science Foundation; NSF has not approved or endorsed its content."
This project focused on the development and characterization of microporous surfaces of mixed ceria based oxides with enhanced catalytic and oxygen transport properties for improving performance of enzyme based bioelectrodes and biofuel cells. The overall goal was to fabricate microporous oxygen-rich materials, study their surface properties and implement them in the construction of bioelectrodes and biofuel cells. The project also included activities to develop educational materials for graduate and upper level undergraduate students to train them in material characterization, biofunctionalization and biodevice engineering. Several undergraduates and two K12 teachers participated in research and were exposed to materials science and engineering principles.
The research demonstrated the potential of nanostructured ceria based oxides as functional materials for enzyme based bioelectrodes and biofuel cells. Several strategies were designed to fabricate microporous oxygen-rich materials based on cerium oxides including the use of bare, mixed and doped nanoparticles, as well as tridimensional nanocomposite networks. Research demonstrated that hybrid nanocomposites with ceria nanoparticles embedded within conductive polymeric layers and high surface area carbon based nanostructures provide significant capabilities for enhancing performance of biocathodes and biofuels cells. Pt-ceria nanostructures deposited on graphene or microporous carbon-based bucky paper demonstrated high activity for bioelectrocatalytic reduction of oxygen and the construction of laccase bioelectrodes and biofuel cells. Bioelectrodes constructed with ceria and Pt-doped ceria enabled sensitive detection of physiological levels of glucose and lactate. The oxygen release properties of these materials have enabled functionality of enzyme based bioelectrodes in oxygen limited conditions. Therefore, these materials can be used to improve oxygen availability at surfaces, thus minimizing oxygen dependency and enhancing the overall performance of enzyme electrodes and potentially of other devices in which oxygen is a restrictive factor. They can also be used as a general platform for the immobilization of enzymes for a variety of biosensing, biofuel cells and bioelectronics applications.
The project provided ample opportunities for graduate and undergraduate student training in chemistry, material science and device engineering. Experiments to demonstrate the use of electrochemistry to characterize surfaces and interfaces and to illustrate the use of functional nanostructures for enzyme immobilization have been introduced in Spectroscopy and Biochemistry/Biotechnology lectures and laboratory courses at Clarkson. One postdoctoral fellow, three graduate students (1 female) and 3 undergraduates (2 female) participated in project activities. One graduate student successfully defended his thesis and has secured an industrial position. A female graduate student has received a travel award to present this research at a national meeting. Research findings have been disseminated to the local community through posters and presentations to local ACS, graduate and undergraduate conferences. Broader dissemination has been accomplished through several publications in highly ranked materials and electrochemistry journals including: Nanoscale, ChemElectroChem, Analytical Chemistry, J. Mater. Chem. B, Biosensors and Bioelectronics; and presentations at national and international meetings with graduate and undergraduate students co-authors.
Last Modified: 09/30/2016
Modified by: Emanuela S Andreescu
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