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MICROFLUIDICS

MICROFLUIDICS

BY Muskan Jain 24th August 2022

Microfluidics is a science which studies the behaviour changes of fluids through micro-channels. This type of technology requires microminiaturized devices that contain chambers and tunnels through which fluids flow or are confined. They deal with very small volumes of fluids, μL, nL, pL and fL(femtolitres) so that they can be transported, mixed, separated and visualized easily.  In a normal environment, they behave differently on a micrometric scale which makes it important for a research experiment.

BENEFITS OF MICROFLUIDICS

  •   It uses less volume of samples, chemicals and reagents thus reducing the cost of application.
  •   Due to its compact size, many operations can be performed by reducing the time of the experiment.
  •   Portable devices
  •   High throughput
  •   Can do both processes and analyse samples in minimum time.
  •   It increases the measurement resolution in any applications

 

TYPES OF MICROFLUIDICS

  •   Open microfluidics-This is applied to the larger liquid-gas surface area, and to minimize bubble formation. Bubbles are a big challenge in microfluidics, as they interrupt the flow and damage our sample. Disadvantages include evaporation, contamination and limited flow rate.
  •   Continuous-flow microfluidics-Continuous flow microfluidics allows liquid to flow through narrow channels or porous media with the help of external pressure pumps and integrated micropumps. This approach is easy to implement because it is less sensitive to protein fouling problems. It has a wide range of applications in chemical separation, bioanalytical and environmental fields.
  •   Digital microfluidics-Also called droplet microfluidics. Most of the application is based on digital microfluidics. Droplets are manipulated in a confined microfluidic channel by using electrowetting. A large range of applications is a synthesis of nanoparticles, single cell analysis, and encapsulation of biological entities. This technology in later years become an important tool for drug delivery and biosensing by providing new solutions for diagnosis and therapeutics.
  •   Paper-based microfluidics– As it is cheap, portable and user-friendly it is used in various medical diagnosis systems. It is dependent on capillary penetration in porous media. Current applications include glucose detection and environmental testing in remote areas where advanced diagnostic tools are not available.
  •         Particle detection microfluidics- Used for detecting particle in fluids with the help of electric signals when it passes through saline water. This method is used to count erythrocytes (red blood cells) and leukocytes (white blood cells) for standard blood analysis.

So, there are various branches of microfluidics and its application besides above mentioned. Microfluidic technology is a powerful tool for biologists in studying cell growth, plant tissue culture, antibiotic resistance, cellular ageing, evolution, optics, food science etc. This is not only used by biologists but also used in thermosetting polymers, glass, silicon etc.

FUTURE DIRECTION-

The application of microfluidics is increasing in various sectors one such sector is microfluidics for personalized cancer treatment. The method is based on patients’ diagnosis and background which reduce time and cost with higher throughput. We will also see the role of microfluidics in medical, pharmaceutical technology, drug discovery and many more in near future.

Although microfluidic techniques have a strong potential in various applications there are challenges which interrupt these methods with unreliable equipment, genetic information etc. 

Muskan Jain

Intern


Muskan Jain, BTech biotechnology from JIIT Noida. She is currently working as an intern at DSS ImageTech in corporate marketing division.

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