Biophysics and bioengineering Archives – Page 4 of 147

Biophysics and bioengineering

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Cursor control using a brain-computer interface

Brain region used for speech decoding also supports BCI cursor control

Light-activated pacemaker is smaller than a grain of rice

The world’s smallest temporary pacemaker is self-powered, optically controlled and dissolves when it’s no longer needed

Speedy worms behave like active polymers in disordered mazes

The presence of disorder causes worms to speed up, not slow down – a surprising result with applications in robotics

Latest articles

Oz principle for stimulating the human retina

Retinal stimulation reveals colour never before seen by the human eye

Tiny sensor creates a stable, wearable brain–computer interface

Hydrogels rapidly switch from soft to hard to create smart medical bandage

Epithelial cells send electrical signals, possibly to communicate

Observations of electrical signal propagation across colonies of epithelial cells suggest they may be able to communicate, similarly to neurons, but much more slowly

Zwitterions make medical implants safer for patients

New coating material inhibits the build-up of proteins, reducing risk of blood clots

‘The thrill of discovering something is a joy’: biophysicist Lisa Manning reflects on the surprising collaborations and intentional steps that have shaped her career

Lisa Manning explains her research on tissue development and reflects on the changes she has made to her mentoring style during her career

Radioactive gold nanoparticles could track drug distribution in the body

Activation imaging using neutron-irradiated gold nanoparticles enables visualization of drug distribution in mice for several days after injection

Ants’ hairy jaws help robots to get a grip

The gripper could be used in environmental clean-up as well as in construction and agriculture.

Novel zinc alloys could make bone screws biodegradable

New coarser-grained alloys are strong enough to challenge stainless steel and titanium as materials for orthopaedic implants, say researchers

Reports on biofabrication

Matt Davidson with a 3D printed material for medical applications

3D printing creates strong, stretchy hydrogels that stick to tissue

A new 3D printing method fabricates entangled hydrogels for medical applications

Ultrasound-activated sono-inks could print 3D structures inside the human body

A novel technique that uses ultrasound to create objects from sonically cured inks could enable 3D printing at deep penetration depths, potentially including inside the body

A wound-healing ink can be 3D printed directly into injuries

Paintable bioactive ink heals wounds of any shape or size

A wound-healing ink that can be 3D printed directly into injuries aims to accelerate the body’s natural healing process

Vascular grafts created by weaving threads of amniotic membrane

Researchers fabricate small-diameter vascular grafts by weaving threads of human amniotic membrane into tubes

Engineered spinal cord implants restore movement to paralysed mice

Functional human spinal cord implants produced from belly fat could help those with spinal injuries walk again

Cryobioprinting could make off-the-shelf tissue-engineered structures a reality

Cryogenic 3D bioprinting of artificial muscle fibres reaches sub-zero temperatures

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Videos

Dr Claire Walsh, Dr Paul Tafforeau at ESRF on beamline BM05 with two samples prepared for HiP-CT imaging

The Human Organ Atlas: a ‘Google Earth’ for our bodies

Quantum effects in biological systems

Explore more in biophysics and bioengineering

Cell sorting device could detect circulating tumour cells

Researchers harness standing acoustic waves to separate microspheres that mimic circulating tumour cells in a blood sample

Quantum behaviour in brain neurons looks theoretically possible

A study probing quantum phenomena in brain neurons could provide fresh insight into how our brains function

Predicting the risk of pregnancy complications

Nanosensor predicts risk of complications in early pregnancy

A flower-shaped nanosensor detects biomarkers in the blood associated with the risk of gestational diabetes and other pregnancy complications

A photo of a mantis shrimp, taken face-on, showing its goggly blue eyes, thin red antennae, body, and two greenish-yellow appendages dangling on either side of its body. These are the dactyl clubs.

‘Phononic shield’ protects mantis shrimp from its own shock waves

Patterned armour-like structure filters out damaging frequencies, say researchers

Harvard’s springtail-like jumping robot leaps into action

The robotic springtail can jump some 1.4 m, or 23 times its body length

A model stretch: explaining the rheology of developing tissue

Researchers explain the puzzling scaling law governing how developing epithelial cells stretch over time

Explore our two regular podcast series! Physics World Weekly looks at the latest events and headlines in physics, as well as featuring short interviews with scientists and our team of journalists. Physics World Stories takes a more in-depth look at a topic.

Photo of the sneeze simulator being tested in the laboratory. The simulator is a three-dimensional model that incorporates a representation of the nasal cavity as well as other parts of the human upper respiratory tract, and it's shown here as an apparatus inside a transparent box, bathed in green light and emitting a burst of aerosols while being tended by a person in a lab coat

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