Showing posts with label biotechnology. Show all posts
Showing posts with label biotechnology. Show all posts
Monday, April 15, 2013
Law-Grown Rat Kidney
Scientists have bioengineered a functional kidney from the remaining cellular matrices of a rat kidney covered with kidney and blood vessel cells from newborn rats, and implanted the grown kidney into an adult rat where it successfully filtered blood and produced urine.
Tuesday, January 29, 2013
Encoding Data in DNA
Scientists have successfully encoded data using nucleic acids as a storage medium -- including all 154 of Shakespeare's sonnets, historic video clips and modern texts and photographs -- allowing massively greater capacities than current methods for archival material and storage lifetimes that could last for millennia under optimal conditions.
Saturday, October 6, 2012
Biodegradable Electronics
Researchers have developed flexible electronic components composed of conductive magnesium and biocompatible silk that can dissolve in water and inside the human body, enabling the design of medical implants that do not require surgical removal.
Thursday, August 30, 2012
"Cyborg" Tissue Created
Researchers have grown rat neurons, heart cells and muscle cells on a three-dimensional scaffold of conductive nanowires and silicon sensors, creating viable tissues with embedded electronics that can provide real-time biometrics to monitor the health and activity of these tissues and possibly deliver commands or instructions.
Monday, August 13, 2012
Prosthetic Retina Encodes Sight
Neuroscientists have developed a prosthetic retina that works to partially restore sight in mice by pre-processing the visual signals detected and encoding them electronically according to how a healthy retina responds to stimuli before sending the signal to the brain.
Sunday, August 12, 2012
Fingertip Circuit Enhances Touch
Engineers have designed a flexible circuit sandwiched into a "nanomembrane" of polyimide plastic and mounted on a silicone shape to be worn over the fingertips to provide electrotactile stimulation for the wearer, enhancing the sense of touch for the wearer for a variety of applications.
Monday, July 23, 2012
Artificial Jellyfish from Heart Cells
Researchers have built a free-swimming artificial medusoid from a silicon base and heart cells harvested from rats, complete with synchronized contractions controlled by electric current that resemble the swimming motion of a live jellyfish.
Saturday, June 9, 2012
Bacteria Form Electrical Grids
New research shows bacteria and other microbial life can use conductive minerals in the soil as electrical grids, allowing for the transfer of electrons necessary to produce and consume the chemicals they need to survive.
Wednesday, May 9, 2012
Biological Magnetic Storage Media
Scientists have extracted the protein certain strains of bacteria use to convert absorbed iron into magnetic nanoparticles and have applied that biotechnology to the production of magnetic mass-storage media with capacities far greater than current industrial chemical methods.
Sunday, April 22, 2012
Ferroelectricity in Amino Acid
Researchers have detected the first proof of ferroelectricity in the simplest known amino acid, glycine, a rare property for biological materials that may lead to a new field of bioelectronic devices and biological interfaces with conventional electronics.
Friday, November 18, 2011
Computers from Bacteria and DNA
Scientists have successfully constructed some basic computational logic gates out of gut bacteria (E. coli) and modified DNA that function just as their semiconductor counterparts, suggesting the feasibility of biological computers.
Friday, October 14, 2011
Electronic Brain in Rat
Researchers have successfully implanted an electronic device in the cerebellum of a rat with brain damage that allows it to function normally, detecting sensory information from the body, interpreting it and communicating that information directly to the brain stem.
Friday, October 7, 2011
Proton-Based Transistor
Scientists have developed a proton-based transistor using the organic compound chitosan that could potentially communicate electronic signals via ion exchange with living tissue, providing a direct interface with implications for biological sensing or prosthetics.
Wednesday, July 20, 2011
First Synthetic Windpipe
Surgeons in Sweden have carried out the first synthetic organ transplant, growing a new windpipe from a patient's own stem cells over an organic scaffolding and successfully implanting it into a 36-year-old man.
Monday, June 27, 2011
Laser Produced by Living Cell
Using a light-emitting protein obtained from a jellyfish, scientists have engineered human kidney cells that produce a focused and intense green light when bathed in blue light between two microscopic mirrors that act as a "laser cavity."
Friday, March 11, 2011
Laboratory-Grown Urethras
For the first time, researchers have used a body's own cells to build custom urethras to replace damaged tissue in five male patients by growing a combination of smooth muscle cells and endothelial cells in a laboratory on a biodegradable scaffold.
Monday, November 1, 2010
Human Liver in Lab
Whole miniature human livers about the size of plums have been grown in a laboratory environment from biological scaffolding of ferret livers stripped of native cells and replaced by human liver cells, a large step forward toward the goal of growing full-sized, personalized replacement livers for transplant patients.
Sunday, September 26, 2010
Glucose Biofuel Cell
An implantable biofuel cell has been successfully test in a rat, drawing its power supply from the natural glucose and oxygen available in the body and producing a significant amount of electrical energy while the subject suffers no ill effects.
Monday, August 16, 2010
Heart Paced with Laser
Researchers have found that pulsed laser light can pace the contractions in an embryonic avian heart with no apparent damage to tissue, which may lead to a new generation of pacemakers and neonatal devices.
Monday, June 28, 2010
Lungs Grown and Transplanted
Researchers have taken diseased lungs from a rat and, with a process of chemical washing to reveal the organ's underlying scaffolding and then incubation in a biological slurry of lung cells, have successfully regrown healthy, functional lungs that were subsequently implanted back into the original rat.
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