Related Experiment Video
Updated: Dec 13, 2025
09:56
Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers
Published on: August 31, 2021
5.4K
Optical Forces: From Fundamental to Biological Applications.
Hongbao Xin1, Yuchao Li1, Yong-Chun Liu2
1Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China.
Advanced Materials (Deerfield Beach, Fla.)
|July 28, 2020
Summary
This review explores recent advances in optical forces, detailing their fundamental principles and diverse applications in biological technology, material science, and quantum science. It highlights new light-matter interactions and near-field techniques for precise manipulation.
Area of Science:
- Physics
- Biotechnology
- Materials Science
Background:
- Optical forces, derived from light-matter interactions, are crucial for manipulating microscopic objects.
- Recent advancements have expanded their application across various scientific disciplines.
Purpose of the Study:
- To review recent progress in optical forces, focusing on fundamental principles and biological applications.
- To discuss novel light-matter interaction mechanisms and near-field techniques.
Main Methods:
- Review of fundamental optical force principles.
- Exploration of near-field techniques for sub-diffraction limit manipulation.
- Analysis of in vitro and in vivo biological applications.
Main Results:
- Description of new light-matter interaction mechanisms.
- Demonstration of nanometer-accurate optical force generation.
- Overview of applications in manipulating individual particles and assembling structures.
Conclusions:
- Optical forces are pivotal for advancements in biological technology, material applications, and quantum sciences.
- Future directions point towards expanded biological exploration using optical forces.
Related Concept Videos
01:18Imaging Biological Samples with Optical Microscopy
8.5K
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
8.5K
01:09Types of Forces
13.7K
In most situations, forces can be grouped into two categories: contact forces and field forces. Contact forces occur as a result of direct physical contact between objects. Field forces, however, act without the necessity of physical contact between objects. They depend on the presence of a "field" in the region of space surrounding the body under consideration. You can think of a field as a property of space that is detectable by the forces it exerts. Scientists think there...
13.7K
01:58Mechanical Protein Functions
5.4K
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force.
5.4K
01:16Focusing of Light in the Eye
4.8K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
4.8K