Optical tweezers are tools made of light that enable contactless pushing, trapping, and
manipulation of objects, ranging from atoms to space light sails. Since the pioneering work …

Hematite particles, which exhibit a high magnetic moment, are used to apply large forces on
physical and biological systems under magnetic fields to investigate various phenomena …

Mechanobiology helps us to decipher cell and tissue functions by looking at changes in their
mechanical properties that contribute to development, cell differentiation, physiology, and …

Optical tweezers have revolutionised micromanipulation from physics and biology to
material science. However, the high laser power involved in optical trapping can damage …

3D pitch rotation of microparticles and cells assumes importance in a wide variety of
applications in biology, physics, chemistry and medicine. Applications such as cell imaging …

Conventionally, the work of adhesion at the nanoscale is estimated using an atomic force
microscope with a tip of the size of 10 nm. It is pressed into a surface with nano-Newton …

Normal thermal fluctuations of the cell membrane have been studied extensively using high
resolution microscopy and focused light, particularly at the peripheral regions of a cell. We …

Abstract 3D Pitch (out-of-plane) rotational motion has been generated in spherical particles
by maneuvering the laser spots of holographic optical tweezers. However, since the …

In recent years, there has been a growing interest in controlling the motion of microparticles
inside and outside a focused laser beam. A hydro-thermophoretic trap was recently reported …

Optical tweezers are powerful tools for high resolution study of surface properties. Such
experiments are traditionally performed by studying the active or the Brownian fluctuation of …