A bubble-assisted electroosmotic micropump for a delivery of a droplet in a microfluidic channel combined with a light-addressable potentiometric sensor
•A bubble-assisted electroosmotic (EO) micropump was proposed.•EO flow at low pumping voltages was realized by a high surface-to-volume ratio of water sheet between a bubble and the wall.•A bubble-assisted EO micropump was combined with a LAPS for pH measurement of a droplet of about 1nL. A bubble-a...
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| Veröffentlicht in: | Sensors and actuators. B, Chemical Chemical, 2017-09, Vol.248, p.993-997 |
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| container_title | Sensors and actuators. B, Chemical |
| container_volume | 248 |
| creator | Li, Xueliang Liu, Shibin Fan, Pingping Werner, Carl Frederik Miyamoto, Ko-ichiro Yoshinobu, Tatsuo |
| description | •A bubble-assisted electroosmotic (EO) micropump was proposed.•EO flow at low pumping voltages was realized by a high surface-to-volume ratio of water sheet between a bubble and the wall.•A bubble-assisted EO micropump was combined with a LAPS for pH measurement of a droplet of about 1nL.
A bubble-assisted electroosmotic (EO) micropump is proposed as a miniaturized actuating element to be integrated in a microfluidic chemical sensing system. In this device, a bubble is generated in a narrow channel to form a thin water sheet between the bubble and the wall. Due to the high surface-to-volume ratio of the water sheet, an efficient EO flow is realized at relatively low pumping voltages of 20–60V without using a porous material. The direction and the flow rate of the EO flow depended on the polarity and the magnitude of the pumping voltage, and the highest flow rate of about ±500pL/s was obtained at ±60V. A bubble-assisted EO micropump was combined with a LAPS for measuring the pH value of a droplet with a volume of 1nL. |
| doi_str_mv | 10.1016/j.snb.2017.02.165 |
| format | Article |
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A bubble-assisted electroosmotic (EO) micropump is proposed as a miniaturized actuating element to be integrated in a microfluidic chemical sensing system. In this device, a bubble is generated in a narrow channel to form a thin water sheet between the bubble and the wall. Due to the high surface-to-volume ratio of the water sheet, an efficient EO flow is realized at relatively low pumping voltages of 20–60V without using a porous material. The direction and the flow rate of the EO flow depended on the polarity and the magnitude of the pumping voltage, and the highest flow rate of about ±500pL/s was obtained at ±60V. A bubble-assisted EO micropump was combined with a LAPS for measuring the pH value of a droplet with a volume of 1nL.</description><identifier>ISSN: 0925-4005</identifier><identifier>EISSN: 1873-3077</identifier><identifier>DOI: 10.1016/j.snb.2017.02.165</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Bubbles ; Droplet ; Electroosmotic micropump ; Flow velocity ; Light-addressable potentiometric sensor ; Microfluidics ; Micropumps ; Organic chemistry ; Polarity ; Porous materials ; Pumping ; Pumps ; Semiconductors ; Sensors</subject><ispartof>Sensors and actuators. B, Chemical, 2017-09, Vol.248, p.993-997</ispartof><rights>2017</rights><rights>Copyright Elsevier Science Ltd. Sep 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c325t-110b28ac48cb72003125e2c453c4ba7e706b36e42ed1e331dd54827ffa72d43b3</citedby><cites>FETCH-LOGICAL-c325t-110b28ac48cb72003125e2c453c4ba7e706b36e42ed1e331dd54827ffa72d43b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.snb.2017.02.165$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids></links><search><creatorcontrib>Li, Xueliang</creatorcontrib><creatorcontrib>Liu, Shibin</creatorcontrib><creatorcontrib>Fan, Pingping</creatorcontrib><creatorcontrib>Werner, Carl Frederik</creatorcontrib><creatorcontrib>Miyamoto, Ko-ichiro</creatorcontrib><creatorcontrib>Yoshinobu, Tatsuo</creatorcontrib><title>A bubble-assisted electroosmotic micropump for a delivery of a droplet in a microfluidic channel combined with a light-addressable potentiometric sensor</title><title>Sensors and actuators. B, Chemical</title><description>•A bubble-assisted electroosmotic (EO) micropump was proposed.•EO flow at low pumping voltages was realized by a high surface-to-volume ratio of water sheet between a bubble and the wall.•A bubble-assisted EO micropump was combined with a LAPS for pH measurement of a droplet of about 1nL.
A bubble-assisted electroosmotic (EO) micropump is proposed as a miniaturized actuating element to be integrated in a microfluidic chemical sensing system. In this device, a bubble is generated in a narrow channel to form a thin water sheet between the bubble and the wall. Due to the high surface-to-volume ratio of the water sheet, an efficient EO flow is realized at relatively low pumping voltages of 20–60V without using a porous material. The direction and the flow rate of the EO flow depended on the polarity and the magnitude of the pumping voltage, and the highest flow rate of about ±500pL/s was obtained at ±60V. A bubble-assisted EO micropump was combined with a LAPS for measuring the pH value of a droplet with a volume of 1nL.</description><subject>Bubbles</subject><subject>Droplet</subject><subject>Electroosmotic micropump</subject><subject>Flow velocity</subject><subject>Light-addressable potentiometric sensor</subject><subject>Microfluidics</subject><subject>Micropumps</subject><subject>Organic chemistry</subject><subject>Polarity</subject><subject>Porous materials</subject><subject>Pumping</subject><subject>Pumps</subject><subject>Semiconductors</subject><subject>Sensors</subject><issn>0925-4005</issn><issn>1873-3077</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kctu1TAQhi0EEofCA7CzxDphfEmcilVVQUGq1A2sLV8mHB8ldrCdor4Jj4sPh3VXo9H839x-Qt4z6Bmw8eOpL9H2HJjqgfdsHF6QA5uU6AQo9ZIc4JoPnQQYXpM3pZwAQIoRDuTPDbW7tQt2ppRQKnqKC7qaUyprqsHRNbictn3d6JwyNdTjEh4xP9E0n7NWW7DSEFvyTzove_CNc0cTIy7UpdWG2Pr-DvXYREv4eayd8T5jKaZNpluqGGtIK9bcwIKxpPyWvJrNUvDd_3hFfnz5_P32a3f_cPft9ua-c4IPtWMMLJ-Mk5OzigMIxgfkTg7CSWsUKhitGFFy9AyFYN4PcuJqno3iXgorrsiHS98tp187lqpPac-xjdQcpnESTE7XTcUuqnZgKRlnveWwmvykGeizAfqkmwH6bIAGrpsBjfl0YbCt_xgw6-ICRoc-5PZh7VN4hv4LfrSRQA</recordid><startdate>20170901</startdate><enddate>20170901</enddate><creator>Li, Xueliang</creator><creator>Liu, Shibin</creator><creator>Fan, Pingping</creator><creator>Werner, Carl Frederik</creator><creator>Miyamoto, Ko-ichiro</creator><creator>Yoshinobu, Tatsuo</creator><general>Elsevier B.V</general><general>Elsevier Science Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20170901</creationdate><title>A bubble-assisted electroosmotic micropump for a delivery of a droplet in a microfluidic channel combined with a light-addressable potentiometric sensor</title><author>Li, Xueliang ; Liu, Shibin ; Fan, Pingping ; Werner, Carl Frederik ; Miyamoto, Ko-ichiro ; Yoshinobu, Tatsuo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c325t-110b28ac48cb72003125e2c453c4ba7e706b36e42ed1e331dd54827ffa72d43b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Bubbles</topic><topic>Droplet</topic><topic>Electroosmotic micropump</topic><topic>Flow velocity</topic><topic>Light-addressable potentiometric sensor</topic><topic>Microfluidics</topic><topic>Micropumps</topic><topic>Organic chemistry</topic><topic>Polarity</topic><topic>Porous materials</topic><topic>Pumping</topic><topic>Pumps</topic><topic>Semiconductors</topic><topic>Sensors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Xueliang</creatorcontrib><creatorcontrib>Liu, Shibin</creatorcontrib><creatorcontrib>Fan, Pingping</creatorcontrib><creatorcontrib>Werner, Carl Frederik</creatorcontrib><creatorcontrib>Miyamoto, Ko-ichiro</creatorcontrib><creatorcontrib>Yoshinobu, Tatsuo</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials 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>Li, Xueliang</au><au>Liu, Shibin</au><au>Fan, Pingping</au><au>Werner, Carl Frederik</au><au>Miyamoto, Ko-ichiro</au><au>Yoshinobu, Tatsuo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A bubble-assisted electroosmotic micropump for a delivery of a droplet in a microfluidic channel combined with a light-addressable potentiometric sensor</atitle><jtitle>Sensors and actuators. 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A bubble-assisted electroosmotic (EO) micropump is proposed as a miniaturized actuating element to be integrated in a microfluidic chemical sensing system. In this device, a bubble is generated in a narrow channel to form a thin water sheet between the bubble and the wall. Due to the high surface-to-volume ratio of the water sheet, an efficient EO flow is realized at relatively low pumping voltages of 20–60V without using a porous material. The direction and the flow rate of the EO flow depended on the polarity and the magnitude of the pumping voltage, and the highest flow rate of about ±500pL/s was obtained at ±60V. A bubble-assisted EO micropump was combined with a LAPS for measuring the pH value of a droplet with a volume of 1nL.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.snb.2017.02.165</doi><tpages>5</tpages></addata></record> |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Bubbles Droplet Electroosmotic micropump Flow velocity Light-addressable potentiometric sensor Microfluidics Micropumps Organic chemistry Polarity Porous materials Pumping Pumps Semiconductors Sensors |
| title | A bubble-assisted electroosmotic micropump for a delivery of a droplet in a microfluidic channel combined with a light-addressable potentiometric sensor |
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