A Single-cell Membrane Dynamic from Poration to Restoration by Bubble-induced Jetting Flow

نویسندگان

  • Z. G. Li
  • K. Q. Luo
  • C. D. Ohl
  • J. B. Zhang
  • A. Q. Liu
چکیده

This paper demonstrates a new method to porate single suspension living cell membrane using cavitation bubble-induced high speed jet flow. A microfluidic chip with an array of single cell trapping structures is designed and fabricated to trap sing cell and induce the asymmetric collapse of the cavitation bubble. Myeloma cells suspended in Trypan blue saline solution is tested and single Myeloma cells can be trapped in the trapping structures. The dynamic process is recorded using a high speed camera. This method has great potential in biomedical applications and easy to be integrated to other microfluidic system.

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

Cell membrane deformation and bioeffects produced by tandem bubble-induced jetting flow.

Cavitation with bubble-bubble interaction is a fundamental feature in therapeutic ultrasound. However, the causal relationships between bubble dynamics, associated flow motion, cell deformation, and resultant bioeffects are not well elucidated. Here, we report an experimental system for tandem bubble (TB; maximum diameter = 50 ± 2 μm) generation, jet formation, and subsequent interaction with s...

متن کامل

Dynamics and mechanisms of intracellular calcium waves elicited by tandem bubble-induced jetting flow.

One of the earliest events in cellular mechanotransduction is often an increase in intracellular calcium concentration associated with intracellular calcium waves (ICWs) in various physiologic or pathophysiologic processes. Although cavitation-induced calcium responses are believed to be important for modulating downstream bioeffects such as cell injury and mechanotransduction in ultrasound the...

متن کامل

Sonoporation of suspension cells with a single cavitation bubble in a microfluidic confinement.

We report here the sonoporation of HL60 (human promyelocytic leukemia) suspension cells in a microfluidic confinement using a single laser-induced cavitation bubble. Cavitation bubbles can induce membrane poration of cells located in their close vicinity. Membrane integrity of suspension cells placed in a microfluidic chamber is probed through either the calcein release out of calcein-loaded ce...

متن کامل

Single cell membrane poration by bubble-induced microjets in a microfluidic chip.

This paper demonstrates membrane poration of a single suspension cell due to a fast liquid microjet. The jet is formed during the collapse of a laser induced bubble created at a variable stand-off distance from the target cell. The cell is trapped by a converging structure within a microfluidic chip. The asymmetrical growth and collapse of the cavitation bubble next to the cell lead to the micr...

متن کامل

Laser-induced microbubble poration of localized single cells.

Laser-induced microbubbles were used to porate the cell membranes of localized single NIH/3T3 fibroblasts. Microsecond laser pulses were focused on an optically absorbent substrate, creating a vapour microbubble that oscillated in size at the laser focal point in a fluidic chamber. The shear stress accompanying the bubble size oscillation was able to porate nearby cells. Cell poration was demon...

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 2011