Continuous-flow electrical lysis device with integrated control by dielectrophoretic cell sorting.
نویسندگان
چکیده
We present a device capable of electrical cell lysis and evaluation of lysis efficiency in continuous flow using dielectrophoretic cell sorting. We use a combination of AC electrical fields and so-called liquid electrodes to avoid bubble creation at the electrode surface. The electrical field distribution is calculated in different electrode configurations by numerical simulations. Cell sorting shows high lysis efficiency, 99% of yeast cells sorted after lysis featuring dielectric properties similar to dead cells. A study of the potential device throughput is performed.
منابع مشابه
A unified approach to dielectric single cell analysis: impedance and dielectrophoretic force spectroscopy.
In this review we present a unified approach for single cell dielectric spectroscopy. Impedance spectroscopy and dielectrophoretic cell sorting, current microtechnologies applied in electrical analysis of single cells are discussed based on their closely related physical principles. In addition, examples of microfluidic devices will be presented: a microfabricated flow cytometer for single cell...
متن کاملSimultaneous cell lysis and bead trapping in a continuous flow microfluidic device
Continuous flow cell lysis by electroporation (EP), and cell and bead trapping by dielectrophoresis (DEP) have been demonstrated on a dielectrophoretic microfluidic chip. The results of lysing human white blood cells (WBC) and murine clonal cells (MN9D) by electroporation s a a m c ©
متن کاملA Microfluidic Device for Sorting Liver Cancer Stem Cell in a Continuous Biological Fluid
In order to make possible the selective sorting of hepatocellular carcinoma stem cells (CD133+ HCC SCs) in biofluids without to use an antigen-antibody reaction to attach antibody-immobilized nanobeads to the surfaces of HCC SCs. The unique dielectric properties of HCC SC has been tested and obtained by the applying AC electrical field with various frequency and strength between an planar micro...
متن کاملIntegrated microsystem for dielectrophoretic cell concentration and genetic detection.
We have directly integrated a continuous-flow, electrokinetic method of bacterial cell concentration with room temperature, sequence-specific genetic detection. The system we have developed traps cells from a continuous-flow sample stream via dielectrophoresis, providing a 160-fold increase in cell concentration. PDMS microvalves then define a 100 nL volume around the trapped cells to which cel...
متن کاملEnhancement of a Label-free Dielectrophoretic Cell Sorter with an Integrated Impedance Detection System
We present a miniaturized CMOS impedance detector integrated within a dielectrophoretic microfluidic device for label-free separation, enabling the sorting and counting of particle suspensions in a fully electrical manner. This approach makes possible a truly portable system for cell sorting and analysis. Towards this end, the design of ad hoc coplanar electrodes for impedance sensing, supporte...
متن کاملذخیره 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 ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Lab on a chip
دوره 10 16 شماره
صفحات -
تاریخ انتشار 2010