Optical Trapping

Optical trapping, also known as optical tweezers, uses highly focused laser beams to hold and manipulate tiny particles, like cells or molecules, in place without physical contact. The laser's light creates a force that attracts or pushes the particle toward the center of the beam due to electromagnetic interactions. This technique allows scientists to study biological and physical properties at a microscopic scale, such as measuring forces in molecular interactions or moving small objects precisely. It’s a powerful tool for exploring the microscopic world using light as an invisible, gentle “hand.”