magnetic tweezers

Magnetic tweezers are a scientific tool used to manipulate and study tiny biological molecules, such as DNA or proteins, by applying controlled magnetic forces. Researchers attach magnetic beads to these molecules and place them in a magnetic field generated by external magnets. By adjusting the magnetic field, they can exert precise forces and torques, allowing them to stretch, twist, or move the molecules. This technique helps scientists understand molecular mechanics, interactions, and responses under various physical conditions, providing insights into fundamental biological processes with high sensitivity and specificity.