{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/72168"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/72168","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Deposited Nanorod Films for Biosensor Applications","abstract":"Planar photonic crystals have been used as the basis of many biological sensing devices. Here, we successfully demonstrate that the combination of the photonic crystal structures and a dielectric nanorod coating prepared by glancing-angle deposition method can lead to significant increases in the device sensitivity.","abstract_html":"Planar photonic crystals have been used as the basis of many biological sensing devices. Here, we successfully demonstrate that the combination of the photonic crystal structures and a dielectric nanorod coating prepared by glancing-angle deposition method can lead to significant increases in the device sensitivity.","abstract_has_math":false,"creators":["Zhang, Wei"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Materials Science and Engineering","degree_department":null,"school":null,"contributors":["Cunningham, Brian T."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-12-17T20:48:41Z","date_published":"2014-12-17T20:48:41Z","updated_at":"2026-07-22T22:26:06Z","subjects":["Engineering, Materials Science"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(UMI)AAI3395561"],"render_values":[{"text":"(UMI)AAI3395561","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/72168","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Cunningham, Brian T."]},{"key":"dc:creator","label":"Author","values":["Zhang, Wei"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2014-12-17T20:48:41Z","10000-01-01","2009"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Materials Science and Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Engineering, Materials Science"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/72168","(UMI)AAI3395561"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Planar photonic crystals have been used as the basis of many biological sensing devices. Here, we successfully demonstrate that the combination of the photonic crystal structures and a dielectric nanorod coating prepared by glancing-angle deposition method can lead to significant increases in the device sensitivity.","By incorporating a nanorod coating onto a label-free biosensor structure, the surface area of the device is increased. The sensitivity of high-surface-area sensors is compared with that of sensors without the high-surface-area coating. Results for detection of polymer films, proteins, and small molecules indicate up to a seven fold enhancement of detected adsorbed mass density.","When a nanorod coating is applied on top of the high-index layer of an enhanced-fluorescence biosensor, the emission intensity of a fluorescent dye on the device is increased by over 100 times compared to a reference glass slide. The increased sensitivity is due to the combined effects of enhanced near fields and enhanced surface area. The sensitivity is further increased by close to 200 times when a nanorod film is used as the high-index layer of the photonic crystal structure.","The planar photonic crystal is also combined with a SiO2-Ag "post-cap" nanostructure for applications in surface-enhanced Raman spectroscopy. It is demonstrated that the resonant near-fields of the photonic crystal could be used to couple light efficiently from a laser to the Ag nanoparticles to achieve a high surface-enhanced Raman spectroscopy enhancement factor.","Made available in DSpace on 2014-12-17T20:48:41Z (GMT). No. of bitstreams: 1 3395561.pdf: 4322254 bytes, checksum: a76f280b18832e5a969faf72795aaf21 (MD5) Previous issue date: 2009","Embargo set by: Seth Robbins for item 72336 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","92 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2009."]},{"key":"dc:title","label":"Title","values":["Deposited Nanorod Films for Biosensor Applications"]}]}],"canonical_facts":{"dc:contributor":["Cunningham, Brian T."],"dc:creator":["Zhang, Wei"],"dc:date":["2014-12-17T20:48:41Z","10000-01-01","2009"],"dc:description":["Planar photonic crystals have been used as the basis of many biological sensing devices. Here, we successfully demonstrate that the combination of the photonic crystal structures and a dielectric nanorod coating prepared by glancing-angle deposition method can lead to significant increases in the device sensitivity.","By incorporating a nanorod coating onto a label-free biosensor structure, the surface area of the device is increased. The sensitivity of high-surface-area sensors is compared with that of sensors without the high-surface-area coating. Results for detection of polymer films, proteins, and small molecules indicate up to a seven fold enhancement of detected adsorbed mass density.","When a nanorod coating is applied on top of the high-index layer of an enhanced-fluorescence biosensor, the emission intensity of a fluorescent dye on the device is increased by over 100 times compared to a reference glass slide. The increased sensitivity is due to the combined effects of enhanced near fields and enhanced surface area. The sensitivity is further increased by close to 200 times when a nanorod film is used as the high-index layer of the photonic crystal structure.","The planar photonic crystal is also combined with a SiO2-Ag "post-cap" nanostructure for applications in surface-enhanced Raman spectroscopy. It is demonstrated that the resonant near-fields of the photonic crystal could be used to couple light efficiently from a laser to the Ag nanoparticles to achieve a high surface-enhanced Raman spectroscopy enhancement factor.","Made available in DSpace on 2014-12-17T20:48:41Z (GMT). No. of bitstreams: 1 3395561.pdf: 4322254 bytes, checksum: a76f280b18832e5a969faf72795aaf21 (MD5) Previous issue date: 2009","Embargo set by: Seth Robbins for item 72336 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","92 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2009."],"dc:identifier":["http://hdl.handle.net/2142/72168","(UMI)AAI3395561"],"dc:subject":["Engineering, Materials Science"],"dc:title":["Deposited Nanorod Films for Biosensor Applications"],"dc:type":["text"],"thesis:degree_discipline":["Materials Science and Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:26:06Z"}