Embeddable Low-voltage Micropump Using Electroosmosis of the Second Kind

نویسندگان

  • T. Heldal
  • T. Volden
  • J. Auerswald
  • H. Knapp
چکیده

A low-voltage micropump with no moving parts and based on standard MEMS fabrication techniques has been developed. The pump has been characterized by pumping a variety of liquids, including de-ionized water, phosphate buffer saline, and aqueous solutions of sugars and alcohols as well as pure methanol, with typical pumping speeds of a few hundred micrometer per second. The small power/voltage requirements and dimensions make the pump suitable for portable, embedded and implantable devices. The pump is situated inside the flow channel and can therefore be directly integrated in high-density microfluidic networks.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Surface-Tension Driven Micropump for Low-Voltage and Low-Power Operations

In this paper, we first report a micropump actuated by surface tension based on continuous electrowetting (CEW). We have used the surface-tension-induced motion of a mercury drop in a microchannel filled with an electrolyte as actuation energy for the micropump. This allows low voltage operation as well as low-power consumption. The micropump is composed of a stack of three wafers bonded togeth...

متن کامل

Electroosmosis of the second kind and current through curved interface

The article focuses on the principles of strong concentration polarisation of flat and curved interfaces including the phenomenon of the limiting current. It is shown both theoretically and experimentally that electroosmosis of the second kind near the curved interface causes an important change of characteristics of concentration polarisation and a rapid growth of the current through an interf...

متن کامل

ECF micropump fabricated by electroforming with novel self-aligned micro-molding technology

This paper proposes and presents a novel ECF (electro-conjugate fluid) micropump with TPSEs (triangular prism and slit electrode pair) fabricated by electroforming process using newly developed self-aligned micro molds. ECF is a kind of functional and dielectric fluid. ECF micropump is based on the principle of ECF jet, which is a powerful and active jet flow generated between electrodes immerg...

متن کامل

Improved Two-Side AC Electroosmotic Micropump

This paper reports on the fabrication and experimental characterisation of improved design AC eletroosmotic micropumps. Since the first study and analysis of AC electroosmosis by Ramos et al. [1], many devices have been fabricated and tested [2]. The basic planar electrode design was improved and increased pumping velocities were measured. Among the proposed improvements, 3D electrode design se...

متن کامل

Electroosmotic flow control of fluids on a capillary electrophoresis microdevice using an applied external voltage

Independent control of electroosmosis is important for separation science techniques such as capillary zone electrophoresis and for the movement of fluids on microdevices. A capillary electrophoresis microdevice is demonstrated which provides more efficient control of electroosmosis with an applied external voltage field. The device is fabricated in a glass substrate where a 5.0 cm separation c...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007