Question

What are the areas of life-science that are mingled with the knowledge of electronics?

Answer 1

The answer sort of depends on how you define 'electronics.' If you mean the question as, "What areas of life sciences are affected by electric forces" the answer is quite straight forward; if you mean the question as, "What areas of life science are analogous to analog or digital circuits" the answer is a little more abstract.

Electrostatic interactions - that is, interactions between charged or partially charged particles - play an essential role in holding proteins and other molecules in the 'right' or at least consistent structures. And structure of the molecules determine their function and how they interact with all the other molecules, so without electrostatic interactions life would not be able to happen.

If you mean "how are electric models used to analyze biologic systems" the answer is more abstract - but these models are used all over the place. One of the most obvious is modeling ion flow through voltage gated channels, where the channel is a resistor and either inductor or capacitor, depending on the model, in series or parallel with a voltage or current source.

Beyond that, various abstractions like the set of impulse/step/ramp inputs from electronics are used to model biologic processes like a signal molecule binding then quickly unbinding, or the effect of opening a specific biologic channel in the cell. And I have seen a couple models of intracellular feedback involving Op Amps but those are by no means common or widely used.

Digital circuit models are sometimes used to model discrete or binary phenomena in the cell, like a yes/no decision for the cell to divide or undergo apoptosis.

And once the circuit has been set up, all the usual tricks from circuit analysis like Thevenin and Norton, small circuit analysis, amplifiers and all that goodness is used to simplify and analyze.

Hope that that is helpful.

Answer 2

thank you @blues... :) ...... the text was clear and impressive.......

Im a starter in the field of biotechnology with a little interest in electronics ........ I was carried by DNA nanowires and some other concepts in nano........ and thats why i asked the question :) . but ur reply was both extensive and useful :) thank you :)