How a microscopic bio-heat engine works

How a microscopic bio-heat engine works

Physicists have designed a microscopic heat engine by optically trapping a colloidal bead in a bacterial bath1. The heat engine could potentially be used in nano-electromechanical and microfluidic devices. A conventional macroscopic heat engine converts heat energy into mechanical work by confining a few cubic centimetres of gas between a moving piston and its walls.Read more about How a microscopic bio-heat engine works[…]

First estimate of whale sharks in the Gulf

First estimate of whale sharks in the Gulf

The first estimate of the population of mature whale sharks in the Arabian Gulf and the Gulf of Oman1, has been produced by an international research team and a citizen science initiative. The researchers conducted field work with ‘Sharkwatch Arabia’ to study the whale shark (Rhincodon typus), the largest known fish considered to be endangeredRead more about First estimate of whale sharks in the Gulf[…]

Flame resistant green wood

Flame resistant green wood

By using multiwalled carbon nanotubes, starch and softwood, researchers have synthesized a green wood nanocomposite that is thermally stable and flame retardant, making it potentially useful for home and industrial applications1. Wood polymer composites made from petroleum-based polymers and solvents are not biodegradable and could pollute the environment. To prepare an ecofriendly wood nanocomposite, theRead more about Flame resistant green wood[…]

Flexible sensors to track vital signs of the human body

Flexible sensors to track vital signs of the human body

Vertically stacked three-dimensional sensors exhibit low resistance, and consume less power and space1. The sensors are implantable and potentially useful for monitoring activities of brain cells, heart rates and body temperature. Current techniques stack sensors horizontally with a lot of wiring. Besides taking up space, they generate noise that attenuates desired signals. Researchers from KingRead more about Flexible sensors to track vital signs of the human body[…]