Piezoelectric cantilever sensors with asymmetric anchor exhibit picogram sensitivity in liquids
We show for the first time that self-exciting and self-sensing piezoelectric cantilevers consisting only of lead zirconate titanate (PZT) measure resonance only if they are asymmetrically anchored. Symmetric-anchoring did not give rise to electrically measurable bending resonant modes in the 0–100 k...
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| Veröffentlicht in: | Sensors and actuators. B, Chemical Chemical, 2011-03, Vol.153 (1), p.64-70 |
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| container_title | Sensors and actuators. B, Chemical |
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| creator | Sharma, Harsh Lakshmanan, Ramji S. Johnson, Blake N. Mutharasan, Raj |
| description | We show for the first time that self-exciting and self-sensing piezoelectric cantilevers consisting only of lead zirconate titanate (PZT) measure resonance only if they are asymmetrically anchored. Symmetric-anchoring did not give rise to electrically measurable bending resonant modes in the 0–100
kHz range. Sensitivity of first and second bending mode resonances was characterized in a flow apparatus using small density changes in liquid (0.003–0.01
g/cm
3) and by dodecanethiol chemisorption at 30
pM. Density change results were consistent with existing models of submerged cantilevers, and yielded mass-change sensitivity of ∼33
ng/Hz and 217
pg/Hz for the first two modes. In chemisorption experiments, where binding was localized to 1
mm
2 distal tip of the PZT cantilever, sensitivity improved by an order of magnitude to 2
pg/Hz and 414
fg/Hz for the same two resonant modes. |
| doi_str_mv | 10.1016/j.snb.2010.10.006 |
| format | Article |
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kHz range. Sensitivity of first and second bending mode resonances was characterized in a flow apparatus using small density changes in liquid (0.003–0.01
g/cm
3) and by dodecanethiol chemisorption at 30
pM. Density change results were consistent with existing models of submerged cantilevers, and yielded mass-change sensitivity of ∼33
ng/Hz and 217
pg/Hz for the first two modes. In chemisorption experiments, where binding was localized to 1
mm
2 distal tip of the PZT cantilever, sensitivity improved by an order of magnitude to 2
pg/Hz and 414
fg/Hz for the same two resonant modes.</description><identifier>ISSN: 0925-4005</identifier><identifier>EISSN: 1873-3077</identifier><identifier>DOI: 10.1016/j.snb.2010.10.006</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Actuators ; Asymmetry ; Bending ; Biosensor ; Chemisorption ; Density ; In-liquid ; lead ; Lead zirconate titanates ; Liquids ; Mass-change sensitivity ; Piezoelectricity ; Resonant frequency ; Sensors ; sensors (equipment)</subject><ispartof>Sensors and actuators. B, Chemical, 2011-03, Vol.153 (1), p.64-70</ispartof><rights>2010 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c353t-5b468b01880871354a81f218f292996c80df020104a616e04b149598d9a00fd33</citedby><cites>FETCH-LOGICAL-c353t-5b468b01880871354a81f218f292996c80df020104a616e04b149598d9a00fd33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0925400510008130$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids></links><search><creatorcontrib>Sharma, Harsh</creatorcontrib><creatorcontrib>Lakshmanan, Ramji S.</creatorcontrib><creatorcontrib>Johnson, Blake N.</creatorcontrib><creatorcontrib>Mutharasan, Raj</creatorcontrib><title>Piezoelectric cantilever sensors with asymmetric anchor exhibit picogram sensitivity in liquids</title><title>Sensors and actuators. B, Chemical</title><description>We show for the first time that self-exciting and self-sensing piezoelectric cantilevers consisting only of lead zirconate titanate (PZT) measure resonance only if they are asymmetrically anchored. Symmetric-anchoring did not give rise to electrically measurable bending resonant modes in the 0–100
kHz range. Sensitivity of first and second bending mode resonances was characterized in a flow apparatus using small density changes in liquid (0.003–0.01
g/cm
3) and by dodecanethiol chemisorption at 30
pM. Density change results were consistent with existing models of submerged cantilevers, and yielded mass-change sensitivity of ∼33
ng/Hz and 217
pg/Hz for the first two modes. In chemisorption experiments, where binding was localized to 1
mm
2 distal tip of the PZT cantilever, sensitivity improved by an order of magnitude to 2
pg/Hz and 414
fg/Hz for the same two resonant modes.</description><subject>Actuators</subject><subject>Asymmetry</subject><subject>Bending</subject><subject>Biosensor</subject><subject>Chemisorption</subject><subject>Density</subject><subject>In-liquid</subject><subject>lead</subject><subject>Lead zirconate titanates</subject><subject>Liquids</subject><subject>Mass-change sensitivity</subject><subject>Piezoelectricity</subject><subject>Resonant frequency</subject><subject>Sensors</subject><subject>sensors (equipment)</subject><issn>0925-4005</issn><issn>1873-3077</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kEtPwzAQhC0EEuXxAziRG6eUdZw4jjghxEtCAgk4W46zoVslcbHTQvn1uC1nTqtdfTOrGcbOOEw5cHk5n4ahnmaw3acAco9NuCpFKqAs99kEqqxIc4DikB2FMAeAXEiYMP1C-OOwQzt6sok1w0gdrtAnAYfgfEi-aJwlJqz7HreIGezM-QS_Z1TTmCzIug9v-i1PI61oXCc0JB19LqkJJ-ygNV3A0795zN7vbt9uHtKn5_vHm-un1IpCjGlR51LVwJUCVXJR5EbxNuOqzaqsqqRV0LSwSZcbySVCXvO8KirVVAagbYQ4Zhc734V3n0sMo-4pWOw6M6BbBq1kFa1FWUaS70jrXQgeW73w1Bu_1hz0pks917FLvfm2OcUuo-Z8p2mN0-bDU9DvrxEoADgvZZZH4mpHYAy5IvQ6WMLBYkM-dqsbR__4_wINSIYq</recordid><startdate>20110331</startdate><enddate>20110331</enddate><creator>Sharma, Harsh</creator><creator>Lakshmanan, Ramji S.</creator><creator>Johnson, Blake N.</creator><creator>Mutharasan, Raj</creator><general>Elsevier B.V</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>L7M</scope></search><sort><creationdate>20110331</creationdate><title>Piezoelectric cantilever sensors with asymmetric anchor exhibit picogram sensitivity in liquids</title><author>Sharma, Harsh ; Lakshmanan, Ramji S. ; Johnson, Blake N. ; Mutharasan, Raj</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c353t-5b468b01880871354a81f218f292996c80df020104a616e04b149598d9a00fd33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Actuators</topic><topic>Asymmetry</topic><topic>Bending</topic><topic>Biosensor</topic><topic>Chemisorption</topic><topic>Density</topic><topic>In-liquid</topic><topic>lead</topic><topic>Lead zirconate titanates</topic><topic>Liquids</topic><topic>Mass-change sensitivity</topic><topic>Piezoelectricity</topic><topic>Resonant frequency</topic><topic>Sensors</topic><topic>sensors (equipment)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sharma, Harsh</creatorcontrib><creatorcontrib>Lakshmanan, Ramji S.</creatorcontrib><creatorcontrib>Johnson, Blake N.</creatorcontrib><creatorcontrib>Mutharasan, Raj</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Sensors and actuators. B, Chemical</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sharma, Harsh</au><au>Lakshmanan, Ramji S.</au><au>Johnson, Blake N.</au><au>Mutharasan, Raj</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Piezoelectric cantilever sensors with asymmetric anchor exhibit picogram sensitivity in liquids</atitle><jtitle>Sensors and actuators. B, Chemical</jtitle><date>2011-03-31</date><risdate>2011</risdate><volume>153</volume><issue>1</issue><spage>64</spage><epage>70</epage><pages>64-70</pages><issn>0925-4005</issn><eissn>1873-3077</eissn><abstract>We show for the first time that self-exciting and self-sensing piezoelectric cantilevers consisting only of lead zirconate titanate (PZT) measure resonance only if they are asymmetrically anchored. Symmetric-anchoring did not give rise to electrically measurable bending resonant modes in the 0–100
kHz range. Sensitivity of first and second bending mode resonances was characterized in a flow apparatus using small density changes in liquid (0.003–0.01
g/cm
3) and by dodecanethiol chemisorption at 30
pM. Density change results were consistent with existing models of submerged cantilevers, and yielded mass-change sensitivity of ∼33
ng/Hz and 217
pg/Hz for the first two modes. In chemisorption experiments, where binding was localized to 1
mm
2 distal tip of the PZT cantilever, sensitivity improved by an order of magnitude to 2
pg/Hz and 414
fg/Hz for the same two resonant modes.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.snb.2010.10.006</doi><tpages>7</tpages></addata></record> |
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| ispartof | Sensors and actuators. B, Chemical, 2011-03, Vol.153 (1), p.64-70 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Actuators Asymmetry Bending Biosensor Chemisorption Density In-liquid lead Lead zirconate titanates Liquids Mass-change sensitivity Piezoelectricity Resonant frequency Sensors sensors (equipment) |
| title | Piezoelectric cantilever sensors with asymmetric anchor exhibit picogram sensitivity in liquids |
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