자발 구동형 종이 펌프를 이용한 종이 전기화학 센서
Paper-based Electrochemical Sensor Using a Self-operated Paper Pump
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초록
We developed a self-operated paper pump that can maintain a nearly constant flow rate of an aqueous solution along a paperstrip channel in paper-based analytical devices (PADs). The quasi-stationary flow rate was controlled by increasing the crosssectional channel area (capillary force) using a fan-shaped absorption pad coupled with a paper strip channel. The flow rateis regulated by varying the fan angle of the circular absorbing pad. Furthermore, the flow rate can be increased by furnishinga hollow cavity at the center of a conventional paper strip channel. The rate was regulated by varying the length of the hollowpaper channel in the flow rate range of 5.1–26.4 mm/min. As a preliminary work, a paper-pump-coupled PAD was fabricated,and its CV detection capability was evaluated for the redox reaction of Fe(CN)6+4/+3. The combination of a paper pump witha PAD resulted in an ideal CV curve with a higher limiting current and faster response time. These results are interpreted wellby the Levich equation, which suggests that the paper pump is a very useful component in paper-based sensors.
Abstract
We developed a self-operated paper pump that can maintain a nearly constant flow rate of an aqueous solution along a paperstrip channel in paper-based analytical devices (PADs). The quasi-stationary flow rate was controlled by increasing the crosssectional channel area (capillary force) using a fan-shaped absorption pad coupled with a paper strip channel. The flow rateis regulated by varying the fan angle of the circular absorbing pad. Furthermore, the flow rate can be increased by furnishinga hollow cavity at the center of a conventional paper strip channel. The rate was regulated by varying the length of the hollowpaper channel in the flow rate range of 5.1–26.4 mm/min. As a preliminary work, a paper-pump-coupled PAD was fabricated,and its CV detection capability was evaluated for the redox reaction of Fe(CN)6+4/+3. The combination of a paper pump witha PAD resulted in an ideal CV curve with a higher limiting current and faster response time. These results are interpreted wellby the Levich equation, which suggests that the paper pump is a very useful component in paper-based sensors.
참고문헌 (26)
- P. Watts, "The application of micro reactors for organic synthesis", Chem. Soc. Rev., 34(3), pp.235~246 (2005)
- J. B. Wacker, "Controlled synthesis of fluorescent silica nanoparticles inside microfluidic droplets", Lab. Chip, 12(17), pp.3111~3116 (2012)
- T. J. Park, "In vivo synthesis of diverse metal nanoparticles by recombinant Escherichia coli", Angew. Chem. Int. Ed., 49(39), pp.7019~7024 (2010)
- G. M. Whitesides, "The origins and the future of microfluidics", Nature, 442(7101), pp.368~373 (2006)
- W. Zhao, "Lab on paper", Lap. Chip, 8(12), pp.1988~1991 (2008)
- X. Li, "Paper-based microfluidic devices by plasma treatment", Anal. Chem., 80(23), pp.9131~9134 (2008)
- A. W. Martinez, "Patterned paper as a platform for inexpensive, low-volume, portable bioassays", Angew. Chem. Int. Ed., 46(8), pp.1318~1320 (2007)
- A. W. Martinez, "FLASH : a rapid method for prototyping paper-based microfluidic devices", Lab. Chip, 8(12), pp.2146~2150 (2008)
- E. Carrilho, "Understanding wax printing : a simple micropatterning process for paper-based microfluidics", Anal. Chem., 81(16), pp.7091~7095 (2009)
- A. K. Ellerbee, "Quantifying colorimetric assays in paperbased microfluidic devices by measuring the transmission of light through paper", Anal. Chem., 81(20), pp.8447~8452 (2009)
- J. C. Jokerst, "Development of a paperbased analytical device for colorimetric detection of select foodborne pathogens", Anal. Chem., 84(6), pp.2900~2907 (2012)
- A. Apilux, "Simple and rapid colorimetric detection of Hg(II)by a paper-based device using silver nanoplates", Talanta, 97(1), pp.388~394 (2012)
- W. Dungchai, "Electrochemical detection for paper-based microfluidics", Anal. Chem., 81(14), pp.5821~5826 (2009)
- Z. Nie, "Integration of paper-based microfluidic devices with commercial electrochemical readers", Lap. Chip, 10(22), pp.3163~3169 (2010)
- Z. Nie, "Electrochemical sensing in paper-based microfluidic devices", Lap. Chip, 10(4), pp.477~483 (2010)
- R. F. Carvalhal, "Electrochemical detection in a paper-based separation device", Anal. Chem., 82(3), pp.1162~1165 (2010)
- J. Lankelma, "Paper-based analytical device for electrochemical flowinjection analysis of glucose in urine", Anal. Chem., 84(9), pp.4147~4152 (2012)
- M. Santhiago, "Construction and electrochemical characterization of microelectrodes for improved sensitivity in paper-based analytical devices", Anal. Chem., 85(10), pp.5233~5239 (2013)
- N. Dossi, "Pencil-drawn dual electrode detectors to discriminate between analytes comigrating on paperbased fluidic devices but undergoing electrochemical processes with different reversibility", Electroanalysis, 25(11), pp.2515~2522 (2013)
- S. E. Fosdick, "Wire, mesh, and fiber electrodes for paper-based electroanalytical devices", Anal. Chem., 86(7), pp.3659~3666 (2014)
- E. W. Washburn, "The dynamics of capillary flow", Phys. Rev., 17(3), pp.273~283 (1921)
- S. Mendez, "Imbibition in porous membranes of complex shape : quasi-stationary flow in thin rectangular segments", Langmuir, 26(2), pp.1380~1385 (2010)
- C. Renault, "Hollow-channel paper analytical devices", Anal. Chem., 85(16), pp.7976~7979 (2013)
- C. Renault, "Electrochemistry in hollow-channel paper analytical devices", J. Am. Chem. Soc., 136(12), pp.4616~4623 (2014)
- S. Yao, "Electrochemical sensor for dissolved carbon dioxide measurement", J. Electrochem. Soc., 149(1), pp.H28~H32 (2002)
- C. Amatore, "Theory and experiments of transport at channel microband electrodes under laminar flow. 1. steady-state regimes at a single electrode", Anal. Chem., 79(22), pp.8502~8510 (2007)