Sensitive sensors could be made from spider silk fibre

Sensitive sensors could be made from spider silk fibre

Physicists have developed a way to help structurally modify spider silk fibre and microweld it with various metals and carbon-based materials1 — a method that could be useful for making various spider-silk-based microstructures such as ultrasensitive sensors. Spider silk is a tough and lightweight biomaterial. However, existing techniques that modify silk fibres using ultraviolet lightRead more about Sensitive sensors could be made from spider silk fibre[…]

Artificial leaf for harnessing sunlight

Artificial leaf for harnessing sunlight

Using a nanocomposite, researchers have made a thin-film device that can absorb sunlight like a natural leaf and split water, making it potentially useful for generating hydrogen fuel1. Producing hydrogen by harnessing the Sun’s power depends on various factors such as light-absorbing efficiency, charge separation and migration in a photocatalyst. It is difficult to makeRead more about Artificial leaf for harnessing sunlight[…]

Data on stolen mobile can be destroyed remotely

Data on stolen mobile can be destroyed remotely

Scientists have developed a tiny embedded system that could remotely destroy the memory of stolen or hacked electronic devices such as mobile phones, laptops and pen drives to prevent data theft1. “This system could be integrated with state-of-the-art high-performance silicon chips, making it potentially useful for protecting data in various fields such as intelligence, nationalRead more about Data on stolen mobile can be destroyed remotely[…]

A chemical trick that makes metal atoms emit light

A chemical trick that makes metal atoms emit light

Nanoclusters of metal atoms are promising for their fluorescence, low toxicity and stability under light. However, the underlying causes of these features have not been adequately scrutinized, something that a new research from Saudi Arabia and China is trying to change by studying the metal atoms under different light and heat conditions to fine-tune theirRead more about A chemical trick that makes metal atoms emit light[…]

Glowing quantum dots made from mango leaves

Glowing quantum dots made from mango leaves

By heating dried mango leaf extract, researchers have synthesized fluorescent graphene quantum dots that can be used for bioimaging and as intracellular temperature-sensing probes1. Existing fluorescent materials, such as organic dyes, metal clusters and quantum dots, are toxic to biological cells and unstable when exposed to light. In search of a biocompatible fluorescent material, scientistsRead more about Glowing quantum dots made from mango leaves[…]

Smarter routers and processors for better communication systems

Smarter routers and processors for better communication systems

A team of physicists has developed a new way to control the paths of light beams trapped in liquid crystals using laser beams and external magnetic fields1. This magneto-optical control will aid in developing efficient and robust signal processing methods for optical communication systems. “Our method can replace some important elements in the optical communicationRead more about Smarter routers and processors for better communication systems[…]

Healing skin wounds using bamboo cellulose nanocrystals

Healing skin wounds using bamboo cellulose nanocrystals

Nanobiocomposites made of bamboo cellulose nanocrystals and silver nanoparticles can accelerate healing of skin wounds in mice, new research shows1. These nanocomposites could be converted to films and ointment, useful as wound-healing dressing material. Existing wound-dressing materials have drawbacks such as foul smell, low porosity and poor-healing capacity. Some are also toxic to biological cells.Read more about Healing skin wounds using bamboo cellulose nanocrystals[…]

Silk protein for scar-less healing

Silk protein for scar-less healing

Researchers have synthesized antibiotic-coated nanofibrous mats that can be used as material to dress and heal wounds caused by disease-related foot ulcers and various infections1. Chronic wounds like diabetic foot ulcers, venous ulcers and pressure sores affect millions globally. Such wounds are difficult to heal and sometimes necessitate amputations. To find an alternative dressing materialRead more about Silk protein for scar-less healing[…]