Members: 0 member(s)

Shares ?


Clicks ?


Viral Lift ?


Society 206 views Jan 09, 2017
Realization of Cellular Function Simulation by Laser Irradiatio

It is reported that from the French National Center for Scientific Research and Bordeaux Polytechnic team of researchers using 400mw green laser radiation to control the explosion of polymer vesicles. These hollow polymeric spheres can mimic the response of certain cellular functions to specific wavelengths, so that their contents can be released as desired.

laser pointer

Polymeric vesicles are artificial vesicles that mimic the organ-compartment of a naturally occurring cell in a nuclear cell. The team encapsulated the fluorescent molecules in "giant" polymer vesicles with a diameter of 12 μm. These fluorescent groups can be decomposed by light at a specific wavelength. Appropriate levels of laser radiation degrade these molecules, thereby increasing the concentration of solutes in the polymer vesicles. This results in an imbalance since the polymer vesicles are relatively impermeable and can not be compensated by sufficient velocity; therefore, the vesicles will be forced to rupture.

The team designed three types of polymer vesicles, each containing a specific fluorophore for reaction at different wavelengths. In this way, the researchers can achieve a level of control that enables them to observe the vesicles and locate them individually using a well-equipped laser confocal microscope. In addition to 5mw laser pointer, researchers are currently developing other control methods to promote micro-bubble rupture, including temperature, pH and magnetic fields.

This work will play a major role in the medical field in the long run; however, researchers are currently investigating the ability to release substances in controlled manner in artificial polymer cells to reproduce and better understand the biological cell Some metabolic reactions.

Tags: #laser pointer