发明名称 |
Microfluidic devices with integrated resistive heater electrodes including systems and methods for controlling and measuring the temperatures of such heater electrodes |
摘要 |
The invention relates to methods and devices for control of an integrated thin-film device with a plurality of microfluidic channels. In one embodiment, a microfluidic device is provided that includes a microfluidic chip having a plurality of microfluidic channels and a plurality of multiplexed heater electrodes, wherein the heater electrodes are part of a multiplex circuit including a common lead connecting the heater electrodes to a power supply, each of the heater electrodes being associated with one of the microfluidic channels. The microfluidic device also includes a control system configured to regulate power applied to each heater electrode by varying a duty cycle, the control system being further configured to determine the temperature each heater electrode by determining the resistance of each heater electrode. |
申请公布号 |
US9527083(B2) |
申请公布日期 |
2016.12.27 |
申请号 |
US200812165043 |
申请日期 |
2008.06.30 |
申请人 |
Canon U.S. Life Sciences, Inc. |
发明人 |
Hasson Kenton C.;Coursey Johnathan S.;Owen Gregory H.;Dale Gregory A. |
分类号 |
G01K7/00;B01L7/00;B01L3/00 |
主分类号 |
G01K7/00 |
代理机构 |
Rothwell, Figg, Ernst & Manbeck, P.C. |
代理人 |
Rothwell, Figg, Ernst & Manbeck, P.C. |
主权项 |
1. A microfluidic device for performing biological reactions comprising:
a microfluidic chip having a plurality of microfluidic channels and a plurality of multiplexed heater electrodes, wherein the heater electrodes are part of a multiplex circuit including a common lead connecting the heater electrodes to a power supply, each of the microfluidic channels having associated therewith one of the heater electrodes; and a control system configured to regulate power applied to each heater electrode by varying a duty cycle, the control system being further configured to determine the temperature of each heater electrode by determining the resistance of each heater electrode. |
地址 |
Rockville MD US |