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In this contribution, we discuss fundamental aspects of diamond SGFETs as well as a number of important applications. We first demonstrate how the p-type charge accumulation at the hydrogen-terminated diamond surface can be controlled with an electrolyte gate, forming the basis of diamond SGFETs. For a proper understanding of the operation of the surface conductive diamond SGFETs, it is essential to consider the effect of such a hydrophobic surface on the structure of water at the diamond/electrolyte interface. The electronic transport in the p-type surface conductive channel is studied with Hall-effect experiments performed in an electrolyte in order to elucidate the limiting scattering mechanisms for carriers at the diamond surface. We present the fabrication and characterization of arrays of solution-gated field effect transistors based on single crystalline diamond revealing attractive sensor properties such as high sensitivity and low electronic noise. These diamond SGFETs are investigated as sensors of pH and ionic strength of the electrolyte. Further, we demonstrate the use of these devices for the detection of neurotransmitters when the sensor's active area is functionalized with suitable enzymes. Finally, we show the application of diamond SGFETs for the extracellular recording of the electrical activity of electrogenic cells, thus paving the way for the development of novel diamond-based bio-hybrid systems with the potential to facilitate further progress in the understanding of the cell–semiconductor interface.", "publicationTitle": "physica status solidi (a)", "publisher": "", "place": "", "date": "September 1, 2012", "volume": "209", "issue": "9", "section": "", "partNumber": "", "partTitle": "", "pages": "1631-1642", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Phys. Status Solidi A", "DOI": "10.1002/pssa.201200345", "citationKey": "", "url": "http://onlinelibrary.wiley.com/doi/10.1002/pssa.201200345/abstract", "accessDate": "2014-10-30T11:24:33Z", "PMID": "", "PMCID": "", "ISSN": "1862-6319", "archive": "", "archiveLocation": "", "shortTitle": "Diamond solution-gated field effect transistors", "language": "en", "libraryCatalog": "Wiley Online Library", "callNumber": "", "rights": "Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim", "extra": "", "tags": [ { "tag": "bioelectronics", "type": 1 }, { "tag": "biosensor", "type": 1 }, { "tag": "diamond", "type": 1 }, { "tag": "transistor", "type": 1 } ], "collections": [ "425WGMVZ" ], "relations": {}, "dateAdded": "2014-10-30T11:24:33Z", "dateModified": "2014-10-30T11:24:33Z" } }, { "key": "TPWAVZ5M", "version": 5, "library": { "type": "group", "id": 258130, "name": "TL_Biosensor", "links": { "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/258130/items/TPWAVZ5M", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor/items/TPWAVZ5M", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/258130/items/GEZRHH2E", "type": "application/json" } }, "meta": { "createdByUser": { "id": 32527, "username": "aguimera", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/aguimera", "type": "text/html" } } } }, "data": { "key": "TPWAVZ5M", "version": 5, "parentItem": "GEZRHH2E", "itemType": "attachment", "linkMode": "linked_url", "title": "Full Text PDF", "accessDate": "2014-10-24T10:54:39Z", "url": "http://onlinelibrary.wiley.com/store/10.1002/adma.201102990/asset/5045_ftp.pdf?v=1&t=i1nf5th0&s=b3757df29ce211372c23f0b1b9040c575de01d2a", "note": "", "contentType": "application/pdf", "charset": "", "tags": [], "relations": {}, "dateAdded": "2014-10-24T10:54:39Z", "dateModified": "2014-10-24T10:54:39Z" } }, { "key": "2TU9J89F", "version": 5, "library": { "type": "group", "id": 258130, "name": "TL_Biosensor", "links": { "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/258130/items/2TU9J89F", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor/items/2TU9J89F", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/258130/items/GEZRHH2E", "type": "application/json" } }, "meta": { "createdByUser": { "id": 32527, "username": "aguimera", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/aguimera", "type": "text/html" } } } }, "data": { "key": "2TU9J89F", "version": 5, "parentItem": "GEZRHH2E", "itemType": "attachment", "linkMode": "linked_url", "title": "Snapshot", "accessDate": "2014-10-24T10:54:39Z", "url": "http://onlinelibrary.wiley.com/doi/10.1002/adma.201102990/abstract", "note": "", "contentType": "text/html", "charset": "", "tags": [], "relations": {}, "dateAdded": "2014-10-24T10:54:39Z", "dateModified": "2014-10-24T10:54:39Z" } }, { "key": "GEZRHH2E", "version": 5, "library": { "type": "group", "id": 258130, "name": "TL_Biosensor", "links": { "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/258130/items/GEZRHH2E", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor/items/GEZRHH2E", "type": "text/html" } }, "meta": { "createdByUser": { "id": 32527, "username": "aguimera", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/aguimera", "type": "text/html" } } }, "creatorSummary": "Hess et al.", "parsedDate": "2011-11-16", "numChildren": 2 }, "data": { "key": "GEZRHH2E", "version": 5, "itemType": "journalArticle", "title": "Graphene Transistor Arrays for Recording Action Potentials from Electrogenic Cells", "creators": [ { "creatorType": "author", "firstName": "Lucas H.", "lastName": "Hess" }, { "creatorType": "author", "firstName": "Michael", "lastName": "Jansen" }, { "creatorType": "author", "firstName": "Vanessa", "lastName": "Maybeck" }, { "creatorType": "author", "firstName": "Moritz V.", "lastName": "Hauf" }, { "creatorType": "author", "firstName": "Max", "lastName": "Seifert" }, { "creatorType": "author", "firstName": "Martin", "lastName": "Stutzmann" }, { "creatorType": "author", "firstName": "Ian D.", "lastName": "Sharp" }, { "creatorType": "author", "firstName": "Andreas", "lastName": "Offenhäusser" }, { "creatorType": "author", "firstName": "Jose A.", "lastName": "Garrido" } ], "abstractNote": "", "publicationTitle": "Advanced Materials", "publisher": "", "place": "", "date": "November 16, 2011", "volume": "23", "issue": "43", "section": "", "partNumber": "", "partTitle": "", "pages": "5045-5049", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Adv. Mater.", "DOI": "10.1002/adma.201102990", "citationKey": "", "url": "http://onlinelibrary.wiley.com/doi/10.1002/adma.201102990/abstract", "accessDate": "2014-10-24T10:54:39Z", "PMID": "", "PMCID": "", "ISSN": "1521-4095", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "en", "libraryCatalog": "Wiley Online Library", "callNumber": "", "rights": "Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim", "extra": "", "tags": [ { "tag": "bioelectronics", "type": 1 }, { "tag": "biosensors", "type": 1 }, { "tag": "field-effect transistors", "type": 1 }, { "tag": "graphene", "type": 1 }, { "tag": "sensors", "type": 1 } ], "collections": [ "4ZSBBJSJ" ], "relations": {}, "dateAdded": "2014-10-24T10:54:39Z", "dateModified": "2014-10-24T10:54:39Z" } }, { "key": "7GUGC3AR", "version": 3, "library": { "type": "group", "id": 258130, "name": "TL_Biosensor", "links": { "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/258130/items/7GUGC3AR", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor/items/7GUGC3AR", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/258130/items/7644V6BA", "type": "application/json" } }, "meta": { "createdByUser": { "id": 32527, "username": "aguimera", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/aguimera", "type": "text/html" } } } }, "data": { "key": "7GUGC3AR", "version": 3, "parentItem": "7644V6BA", "itemType": "attachment", "linkMode": "linked_url", "title": "APS Snapshot", "accessDate": "2014-07-09T10:18:39Z", "url": "http://journals.aps.org/pre/abstract/10.1103/PhysRevE.70.021506", "note": "", "contentType": "text/html", "charset": "", "tags": [], "relations": {}, "dateAdded": "2014-07-09T10:18:39Z", "dateModified": "2014-07-09T10:18:39Z" } }, { "key": "7644V6BA", "version": 3, "library": { "type": "group", "id": 258130, "name": "TL_Biosensor", "links": { "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/258130/items/7644V6BA", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor/items/7644V6BA", "type": "text/html" } }, "meta": { "createdByUser": { "id": 32527, "username": "aguimera", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/aguimera", "type": "text/html" } } }, "creatorSummary": "Bazant et al.", "parsedDate": "2004-08-19", "numChildren": 2 }, "data": { "key": "7644V6BA", "version": 3, "itemType": "journalArticle", "title": "Diffuse-charge dynamics in electrochemical systems", "creators": [ { "creatorType": "author", "firstName": "Martin Z.", "lastName": "Bazant" }, { "creatorType": "author", "firstName": "Katsuyo", "lastName": "Thornton" }, { "creatorType": "author", "firstName": "Armand", "lastName": "Ajdari" } ], "abstractNote": "The response of a model microelectrochemical system to a time-dependent applied voltage is analyzed. The article begins with a fresh historical review including electrochemistry, colloidal science, and microfluidics. The model problem consists of a symmetric binary electrolyte between parallel-plate blocking electrodes, which suddenly apply a voltage. Compact Stern layers on the electrodes are also taken into account. The Nernst-Planck-Poisson equations are first linearized and solved by Laplace transforms for small voltages, and numerical solutions are obtained for large voltages. The “weakly nonlinear” limit of thin double layers is then analyzed by matched asymptotic expansions in the small parameter ε=λD/L, where λD is the screening length and L the electrode separation. At leading order, the system initially behaves like an RC circuit with a response time of λDL/D (not λ2D/D), where D is the ionic diffusivity, but nonlinearity violates this common picture and introduces multiple time scales. The charging process slows down, and neutral-salt adsorption by the diffuse part of the double layer couples to bulk diffusion at the time scale, L2/D. In the “strongly nonlinear” regime (controlled by a dimensionless parameter resembling the Dukhin number), this effect produces bulk concentration gradients, and, at very large voltages, transient space charge. The article concludes with an overview of more general situations involving surface conduction, multicomponent electrolytes, and Faradaic processes.", "publicationTitle": "Physical Review E", "publisher": "", "place": "", "date": "August 19, 2004", "volume": "70", "issue": "2", "section": "", "partNumber": "", "partTitle": "", "pages": "021506", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Phys. Rev. E", "DOI": "10.1103/PhysRevE.70.021506", "citationKey": "", "url": "http://link.aps.org/doi/10.1103/PhysRevE.70.021506", "accessDate": "2014-07-09T10:18:39Z", "PMID": "", "PMCID": "", "ISSN": "", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "APS", "callNumber": "", "rights": "", "extra": "", "tags": [], "collections": [ "4ZSBBJSJ" ], "relations": {}, "dateAdded": "2014-07-09T10:18:39Z", "dateModified": "2014-07-09T10:18:39Z" } }, { "key": "3ECVZJ4Q", "version": 3, "library": { "type": "group", "id": 258130, "name": "TL_Biosensor", "links": { "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/258130/items/3ECVZJ4Q", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor/items/3ECVZJ4Q", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/258130/items/7644V6BA", "type": "application/json" } }, "meta": { "createdByUser": { "id": 32527, "username": "aguimera", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/aguimera", "type": "text/html" } } } }, "data": { "key": "3ECVZJ4Q", "version": 3, "parentItem": "7644V6BA", "itemType": "attachment", "linkMode": "linked_url", "title": "Full Text PDF", "accessDate": "2014-07-09T10:18:39Z", "url": "http://journals.aps.org/pre/pdf/10.1103/PhysRevE.70.021506", "note": "", "contentType": "application/pdf", "charset": "", "tags": [], "relations": {}, "dateAdded": "2014-07-09T10:18:39Z", "dateModified": "2014-07-09T10:18:39Z" } }, { "key": "5P9VWB9W", "version": 2, "library": { "type": "group", "id": 258130, "name": "TL_Biosensor", "links": { "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/258130/items/5P9VWB9W", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor/items/5P9VWB9W", "type": "text/html" } }, "meta": { "createdByUser": { "id": 32527, "username": "aguimera", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/aguimera", "type": "text/html" } } }, "creatorSummary": "Pham et al.", "parsedDate": "2007", "numChildren": 1 }, "data": { "key": "5P9VWB9W", "version": 2, "itemType": "conferencePaper", "title": "Numerical Simulation of the Electrical Double Layer Based on the Poisson-Boltzmann Models for AC Electroosmosis Flows", "creators": [ { "creatorType": "author", "firstName": "Pascale", "lastName": "Pham" }, { "creatorType": "author", "firstName": "Matthieu", "lastName": "Howorth" }, { "creatorType": "author", "firstName": "Anne", "lastName": "Planat-Chrétien" }, { "creatorType": "author", "firstName": "Sedat", "lastName": "Tardu" } ], "abstractNote": "", "proceedingsTitle": "Excerpt from the Proceedings of the COMSOL Users Conference 2007 Grenoble", "conferenceName": "", "publisher": "", "place": "", "date": "2007", "eventPlace": "", "volume": "", "issue": "", "numberOfVolumes": "", "pages": "", "series": "", "seriesNumber": "", "DOI": "", "ISBN": "", "citationKey": "", "url": "http://www.comsol.fi/paper/download/14013/Pham.pdf", "accessDate": "2014-07-09T10:01:58Z", "ISSN": "", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "Google Scholar", "callNumber": "", "rights": "", "extra": "", "tags": [], "collections": [ "4ZSBBJSJ" ], "relations": {}, "dateAdded": "2014-07-09T10:01:58Z", "dateModified": "2014-07-09T10:01:58Z" } }, { "key": "56U22WGZ", "version": 2, "library": { "type": "group", "id": 258130, "name": "TL_Biosensor", "links": { "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/258130/items/56U22WGZ", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/tl_biosensor/items/56U22WGZ", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/258130/items/5P9VWB9W", "type": "application/json" } }, "meta": { "createdByUser": { "id": 32527, "username": "aguimera", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/aguimera", "type": "text/html" } } } }, "data": { "key": "56U22WGZ", "version": 2, "parentItem": "5P9VWB9W", "itemType": "attachment", "linkMode": "linked_url", "title": "[PDF] de comsol.fi", "accessDate": "2014-07-09T10:01:58Z", "url": "http://www.comsol.fi/paper/download/14013/Pham.pdf", "note": "", "contentType": "application/pdf", "charset": "", "tags": [], "relations": {}, "dateAdded": "2014-07-09T10:01:58Z", "dateModified": "2014-07-09T10:01:58Z" } } ]