Researchers have successfully bioengineered a functional lung with perfusable and healthy vasculature in an ex vivo rodent lung. This breakthrough approach selectively treats epithelium while preserving lung vasculature, addressing the organ's extreme complexity.
Researchers develop 'dip-and-dry' approach for selective solar absorbers, exhibiting high performance and durability. The new method yields highly efficient SSAs with contrasting optical properties for solar and thermal radiation.
A new study identifies chemically termolecular reactions, where three molecules participate in breaking and forming bonds, impacting flame propagation speeds and gas phase chemistry. This discovery opens up new possibilities in engine design and understanding planetary atmospheres.
Columbia University researchers successfully demonstrate current blockade using atomically precise molecular clusters at room temperature. The team created a single cluster of geometrically ordered atoms with an inorganic core and positioned linkers to connect it to two gold electrodes, achieving reproducible transport characteristics.
Researchers at Columbia University School of Engineering and Applied Science have made a breakthrough in auditory attention decoding (AAD) methods, bringing cognitively controlled hearing aids closer to reality. The new system can automatically separate individual speakers from a mixture, determine which speaker the user is listening t...
A robotic training method improves posture and walking in children with crouch gait by strengthening extensor muscles, particularly the soleus, against a downward pull. The device enhances muscle coordination, resulting in improved walking features such as step length and toe clearance.
A new DARPA project aims to create an implanted brain-interface device with one million channels to support brain function. The device, developed by Columbia University researchers, uses silicon electronics and wireless powering for non-invasive stimulation and recording from the sensory cortex.
Researchers led by Barclay Morrison will examine concussion injury and recovery mechanisms using in vivo, in vitro, and computational models. The goal is to develop effective methods for preventing and treating concussion, with potential benefits for both acute and persisting neurocognitive dysfunction.
Researchers at Columbia University have developed a new technique to create superstrong, flexible polymers inspired by the nacre of oyster shells. The method uses controlled self-assembly of nanoparticles in a polymer matrix to improve mechanical properties.
A new study reveals that vegetation can alter climate and weather patterns by up to 30 percent. The researchers found substantial feedback loops in semi-arid regions, where vegetation growth enhances heat transfer and increases cloudiness, affecting surface radiation.
Researchers at Columbia University developed a new method using ice-templating to create solid electrolytes for lithium batteries, which are safer, have longer battery life, and are bendable. This approach could improve energy density by replacing the graphite layer with lithium metal.
Researchers developed a technique to efficiently control light in waveguides by decorating them with nano-antennas, achieving record-small footprints and broad wavelength ranges. This innovation has the potential to transform optical communications and signal processing, enabling faster and more powerful optical chips.
A new study by Columbia University researchers found that most Airbnb hosts in Manhattan make less than $10,000 a year, with nearly two-thirds of listings booked less than 30 days. Meanwhile, a small share of hosts generates the majority of the revenue, with top earners capturing 80% of all revenue.
Researchers at Columbia University are developing virtual power conversion systems that use interchangeable converter modules and software to control the converter function, reducing size, cost, and increasing reliability. These systems could lead to 20-30% reductions in Volt-Ampere rating for electric vehicle drivetrains.
Researchers at Columbia University School of Engineering and Applied Science have developed a novel cross-circulation platform that maintains the viability and function of donor lungs for several days. The technology, inspired by an abandoned surgical procedure from the 1960s, enables long-term support of living organs outside the body.
Professor Shiho Kawashima has received a $500,000 NSF CAREER Award to develop concrete systems for 3D printing, which could revolutionize infrastructure construction and repair. Her research aims to improve the processing and rheology of concrete and cement.
A team of researchers at Columbia University has developed an algorithm that unlocks DNA's full storage potential, storing up to 215 petabytes of data in a single gram. They demonstrate the reliability and efficiency of their DNA Fountain technique, which packs more information into DNA molecules than previously published methods.
Professors Ateshian and Myers have made significant contributions to the fields of cartilage mechanics and soft tissue biomechanics. Ateshian's work focuses on developing better modalities for osteoarthritis treatment, while Myers studies the mechanics of the uterus and cervix to prevent premature births.
Researchers at Columbia University have developed a method to manufacture microscale-sized machines from biomaterials that can safely be implanted in the body. The technique uses hydrogels and stacks them in layers to create devices with three-dimensional, freely moving parts.
Sun, a civil engineering and engineering mechanics professor at Columbia University, has won the award for his project on modeling high-rate responses of wetted granular materials. He aims to improve predictions of large-scale field problems using insights from small-scale observations and simulations.
A recent study has found that the frequency of US tornado outbreaks is increasing, but the trend does not resemble those expected under global warming. Instead, researchers attribute the rise to trends in storm relative helicity, a factor not previously linked to climate change.
Shuffler, a new program, continuously scrambles code to prevent hackers from exploiting bugs and carrying out malicious activities. The technique is faster and more user-friendly than existing solutions, making it a promising defense against cyber attacks.
A new trilayer structure developed by Yuan Yang increases energy density in lithium batteries by 10-30%, allowing for longer operation times. The method stabilizes the battery even in ambient air, reducing costs and manufacturing time.
Researchers have directly observed negative refraction for electrons passing across a boundary in graphene, mimicking light behavior. This finding could lead to the development of new types of electron switches and enable new experimental probes, such as on-chip electron microscopes.
A new data-cleaning tool called ActiveClean analyzes a user's prediction model to identify mistakes and update the model as it works. By minimizing human error, ActiveClean improves model accuracy and reduces statistical biases, making it an essential tool for building better prediction models.
Researchers have discovered a new phase-transition optical material that can dynamically control light over a broad wavelength range. The material, samarium nickelate (SmNiO3), can be electrically tuned between transparent and opaque states, opening up applications for smart windows, infrared camouflage, and optical communications.
Researchers have developed a method to control sound waves using acoustic voxels, small hollow cube-shaped chambers that can modify acoustic filtering properties. This enables the creation of unique acoustic signatures for objects, potentially replacing QR codes and RFID tags.
A new study by Columbia University and Inria found that reader referrals drove 61% of clicks on news stories posted on Twitter. The researchers analyzed public data and found that most users share and read content discovered on Twitter, with a relatively long shelf life for shared links.
Columbia University researchers develop groundbreaking technique to repair large bone defects in the head and face with lab-grown living bone. The innovative approach, which uses autologous stem cells derived from a patient's fat, enables precise anatomical replication and active bone remodeling.
Researchers developed approach dynamically changing user's field of view in response to visually perceived motion to reduce VR sickness. The study showed significant reduction in VR sickness experienced by participants without decreasing their sense of presence in the virtual environment.
Researchers discovered two unique structures for gold nanocluster Au144(SR)60, a previously known material, using advanced data analytics. This finding suggests the existence of polymorphic nanoparticles with different properties.
Researchers have developed a complete system to sequence DNA in nanopores electronically at single molecule level with single-base resolution. The system uses a protein nanopore array and polymer-tagged nucleotides to perform single molecule electronic DNA sequencing, enabling real-time and parallel sequencing of multiple DNA molecules.
Researchers at Columbia University have developed the first on-chip RF circulator that doubles WiFi speeds with a single antenna, transforming telecommunications. The technology enables full-duplex communications, where transmitter and receiver operate simultaneously, doubling network capacity.
A team of researchers has identified new privacy concerns by demonstrating that geotagged posts on just two social media apps are enough to link accounts held by the same person. The study found that individuals can be identified with a high degree of confidence by matching their movements across two data sets.
Researchers create a deformable lens array that adapts to the sheet camera's curvature, producing high-quality images over a wide range of deformations. This innovation could lead to cameras the size of a credit card or wrapped around everyday objects.
Researchers have successfully demonstrated a strong non-contact heat transfer channel using light, achieving near-field radiative heat transfer between parallel objects at nanoscale distances. The team's approach has the potential to revolutionize energy conversion applications by converting wasted heat from combustion engines back to ...
A Columbia University team led by Elisa Konofagou will develop a new method for using focused ultrasound to stimulate peripheral nerves, potentially treating chronic pain and neuropathy. The four-year grant aims to advance the field of electrical prescriptions for targeted neural and bio-interface technologies.
Researchers have shown that electrical stimulation of human heart muscle cells can aid their development and function. The team used electrical signals designed to mimic those in a developing heart to regulate and synchronize the beating properties of nascent cardiomyocytes, which support the beating function of the heart.
Biomedical engineer Prof Helen Lu has received a $1.125M grant to develop a nanofiber-based device for tendon-to-bone integration in rotator cuff repair, aiming to improve healing outcomes and reduce re-tear rates.
A recent study published in Nature Genetics reveals that Short Tandem Repeats (STRs) regulate gene expression and modulate disease traits. STRs, previously thought to be neutral or 'junk' DNA, were found to act like springs or knobs that fine-tune nearby gene expression.
Researchers harness molecular machinery of living systems to power integrated circuit from ATP, enabling new artificial systems with both biological and solid-state components. The system produces an electrical potential harvested by the IC in the presence of ATP.
Prof Elizabeth Hillman has received a $1.83 million NIH BRAIN Initiative grant to further develop SCAPE, a high-speed 3D microscope that images neurons in large brain volumes. This breakthrough technique surpasses previous speed barriers, enabling scientists to study neural activity and circuit function.
Computer scientists at Columbia Engineering and Harvard have developed an algorithm to 3D print vibrational sounds by optimizing the shape of objects. The 'zoolophone' is a metallophone with keys in the shape of zoo animals that produces professional-sounding notes.
Professor Nanfang Yu has received the DARPA Young Faculty Award to develop metasurface-based flat optical modulators. He aims to create high-speed, light-weight spatial light modulators (SLMs) with tunable materials for various applications including LIDAR and remote sensing.
A team of experts is working on developing a dynamic spine brace that can modulate corrective forces while allowing users to perform everyday activities. The new design aims to improve the quality of life for children with scoliosis, which affects 2-3% of adolescents each year.
Researchers at Columbia University developed a new method for targeted drug delivery to the lung, which may provide more effective treatments for many lung diseases. By delivering small volumes of drugs directly to the pathologic site, they aim to reduce adverse effects on other organs.
A Columbia Engineering team has developed a new approach to model the Amazon seasonal cycle, correcting inaccuracies in general circulation models. The high-resolution atmospheric model resolves clouds and convection, providing a more accurate understanding of water and carbon cycles.
Researchers discovered that Saharan silver ants use a coat of uniquely shaped hairs to control electromagnetic waves over an extremely broad range, enabling passive radiative cooling. The hair coating enhances optical reflection and radiative heat dissipation, keeping the ants' body temperature below their critical thermal maximum.
Researchers at Columbia University have successfully demonstrated an on-chip visible light source using graphene, a single layer of carbon atoms. The graphene-based light emitter can be integrated into chips and is expected to revolutionize the development of photonic circuits and displays.
Columbia University researchers develop a new technique to create single-molecule diodes, outperforming previous designs by 50 times. The breakthrough enables high current flow and rectification ratios, paving the way for nanoscale devices with real-world technological applications.