Articles tagged with Chemical Engineering
The University of Birmingham and DEFRA's Hazardous Substances Advisory Committee have published new recommendations for improving chemical testing. The report suggests that the UK can adopt a risk-based approach to regulation, using New Approach Methodologies (NAMs), to reduce animal testing and improve safety assessments.
A proof-of-concept study has demonstrated that off-the-shelf thermoelectric generators can convert CO2 into useful fuels and chemicals. The temperature differences encountered in various environments, from geothermal installations to the Martian surface, could power this conversion.
Researchers at UMass Amherst have developed a new, portable method to detect per- and polyfluoroalkyl substances (PFAS) in water. The device is small, inexpensive, and can detect levels as low as 400 ppt, making it more accessible for on-site testing.
Researchers at Pohang University of Science & Technology (POSTECH) developed a smart insect screen-inspired film that regulates solar heat and lowers interior temperatures. The breakthrough, published in Advanced Functional Materials, achieves both transparency and radiative cooling performance.
A research group at Chalmers University of Technology has developed a silk thread coated with a conductive plastic material that can generate electricity from temperature differences. The thread shows promising properties for turning textiles into electricity generators, which could be used to monitor health or charge mobile phones.
Scientists at The University of Tokyo successfully observe the existence of space charge layers in solid electrolyte fuel cells, shedding light on their impact on ion conduction. By controlling grain boundary structure, they can eliminate these layers and improve material performance.
Yihao Zheng and his team are developing a fiber-optic probe that analyzes artery blockages in the brain and guides procedures for blockage removal. The technology uses light and advanced calculations to determine the properties of blood clots, enabling doctors to make informed decisions about how to remove them.
A new study from Chalmers University of Technology presents a technology that can destroy bacteria on implants using gold nanorods and near-infrared light. The method heats up the gold rods, killing bacteria without damaging surrounding tissue.
Researchers at MIT have designed tiny particles that can be implanted at a tumor site, delivering heat and chemotherapy to treat cancer. The treatment approach has been shown to completely eliminate tumors in most mice and prolong their survival.
A joint research team developed an ultra-sensitive pressure sensor for electronic skin inspired by the human brain's nervous system. The sensor detects slight changes in pressure, heart rate, and finger movements, making it suitable for wearable devices and medical monitoring systems.
Researchers at WVU have developed microwave technology to recover propylene from polypropylene waste, which can be reused in new plastics or products. The process uses precise control and lower temperatures than traditional methods, offering energy efficiency and reduced emissions.
Researchers found that foamed cellulose diacetate (CDA) degrades 15 times faster than solid CDA and even faster than paper. The study's results suggest that foamed CDA could be used to replace Styrofoam plastic and single-use plastics, reducing plastic pollution and environmental impacts.
Researchers use tongue and groove technique inspired by ancient East Asian wooden structures to create advanced ceramic microparticles with unprecedented complexity and precision. These particles can be used in various applications across microelectronics, aerospace, energy, and medical engineering.
Scientists developed a technique to engineer LHPs with controlled size distribution of quantum wells, improving efficiency and stability in LEDs and lasers. By controlling nanoplatelets' growth, they achieved excellent energy cascades, enhancing photovoltaic performance and stability.
A new process developed by Lehigh University researchers uses evaporative ion exchange (EIX) to concentrate hypersaline brine at room temperature, avoiding scaling and fouling. The process has shown promising results in concentrating salts from hypersaline water, with the potential for widespread use.
The ASU-led initiative, EPIXC, aims to develop cost-effective technologies to replace fossil fuel-based industrial process heating with clean electricity. Five jump-start projects were selected to advance innovations in electrified industrial process heating, covering various sectors and temperature ranges.
Researchers at UC San Diego developed nanopillars that breach the nucleus of a cell without damaging its outer membrane. This technology has potential applications in gene therapy and drug delivery. The researchers observed that only the nuclear membrane was punctured, leaving the rest of the cell intact.
Researchers at Osaka Metropolitan University have developed a promising solid electrolyte for all-solid-state batteries, showing high conductivity and formability. The new electrolyte, Na2.25TaCl4.75O1.25, also exhibits superior mechanical properties and electrochemical stability.
A research team has developed a simplified synthesis method for organic fluorophores using formaldehyde, reducing molecular size and increasing atomic efficiency. The new technique can also be applied to in vivo environments, showing promise for life sciences research and diagnostics applications.
Researchers at Pohang University of Science & Technology developed a non-fluorinated battery system to comply with environmental regulations and enhance battery performance. The innovative 'APA-LC' system, entirely free of fluorinated compounds, shows improved oxidation stability and higher capacity retention.
Researchers unveil a groundbreaking approach to designing refractory high-entropy alloys with unparalleled strength and ductility. The method, integrating machine learning with advanced computational techniques, has resulted in the development of alloys with superior mechanical properties.
A team of researchers from the University of Washington has developed a flexible pipe with an interior helical structure inspired by shark intestines, which can keep fluid flowing in one direction without flaps. The design rivaled and exceeded Tesla valves, a one-way fluid flow device invented over a century ago.
A new USDA-funded research grant supports the development of sustainable, biodegradable mulch films that can provide nutrients to crops while reducing plastic pollution. The project aims to create durable and effective films that can be used for years without harming the environment.
Juan Jimenez, a Goldhaber postdoctoral fellow at Brookhaven National Laboratory, has been recognized as a Blavatnik Awards Finalist for his work on developing new catalysts to convert greenhouse gases into industrially useful materials. His research focuses on minimizing hazardous byproducts and using solvent-free processes.
Researchers from Tokyo Institute of Technology have developed a novel screening methodology using machine learning to identify key design guidelines for ternary metal sulfide electrocatalysts. Focusing on crystal structure leads to better results, overcoming challenges in material properties and electrochemical performance analysis.
Dr. Abdoulaye Djire, a Texas A&M chemical engineer, has received the Army Research Office Early Career Award for his research on electrochemical ammonia production. His project aims to develop more efficient and environmentally friendly methods for producing ammonia using 2D nanostructured nitride MXenes.
A team from Kyushu University has developed a zeolite catalyst that can be heated using microwaves to speed up the conversion of fatty acid esters to olefins. This process improves energy efficiency and reduces carbon dioxide production, offering a more sustainable chemical industry.
A novel synthetic biology platform enables rapid and cost-effective transformation of protein binders into high-contrast nanosensors for various applications. The platform uses fluorogenic amino acids to increase fluorescence up to 100-fold, enabling the detection of specific proteins, peptides, and small molecules.
Researchers at Osaka Metropolitan University found that foaming plastic carriers promote 44 times more biofilm formation, enhancing wastewater treatment. Adding waste biomass further improves performance, especially in nitrate removal during the moving bed biofilm reactor process.
Researchers have developed a cost-effective and easily reproducible point-of-care testing device that can accurately measure cortisol levels in the blood. The device uses iridium oxide nanoparticles to improve stability, sensitivity, and selectivity, allowing for commercial use.
A new smart mask prototype, EBCare, analyzes chemicals in exhaled breath in real-time, offering personalized health monitoring for respiratory ailments like asthma and COPD. The device's self-cooling system allows for daily wear, while its low cost makes it a promising tool for remote health assessments.
Researchers at the University of Illinois have developed a method to understand and improve light-harvesting molecules for solar energy applications. By combining AI with automated chemical synthesis and experimental validation, they were able to produce molecules four times more stable than traditional ones.
Scientists at ETH Zurich have developed a new method for chemical plastics recycling that breaks down long-chain polymer molecules into monomers, creating high-quality plastics. The approach involves adding a powdered catalyst to molten plastic and stirring it with an impeller, resulting in improved mixing and fewer byproducts.
Researchers at the University of British Columbia have developed an all-in-one solution to remove and destroy PFAS substances, also known as 'forever chemicals,' from water supply. The system combines an activated carbon filter with a patented catalyst that traps and breaks down harmful chemicals into harmless components.
Machine learning algorithms accelerate molecular dynamics simulations of irregular particles, enabling faster and more efficient modeling. This breakthrough has significant implications for understanding microplastic behavior in the environment.
Scientists have developed a unique strategy to control molecular conductance using shape-persistent ladder-type molecules. This approach enables the synthesis of diverse, charged molecules with consistent electronic properties, paving the way for reliable and efficient devices.
Researchers have demonstrated DNA-based technologies that can store, retrieve, compute, erase, and rewrite data. The technology uses soft polymer materials with unique morphologies to create a structure with high surface area for depositing DNA, enabling the full range of operations found in traditional electronic devices.
Researchers at Shenzhen Institute of Advanced Technology developed a novel approach to create degradable living plastics by programming spores to secrete enzymes that break down plastic. The 'living plastics' degrade efficiently within 6-7 days, outperforming regular plastics even with surface damage.
The University of Kansas has received a $26 million grant from the National Science Foundation to create a new Engineering Research Center focused on developing sustainable refrigerant technologies. The EARTH center will address the challenge of replacing hydrofluorocarbons with safer, more environmentally-friendly alternatives.
The WVU team, led by Yu Gu, is testing Loopy's ability to 'co-design' itself and learn to mark contaminated areas. Inspired by natural phenomena like ant swarms and tree roots, Loopy changes form in response to its environment.
Researchers developed a one-pot process to transform aromatic ketones into esters, simplifying the reaction process, reducing reaction times, and minimizing purification steps. The method enables seven different chemical transformations and has shown notable stability and reusability, making it scalable for industrial applications.
Researchers developed Porous-DeepONet, a deep learning framework that efficiently captures complex features of porous media and learns solution operators. It outperforms traditional FEM methods in solving parameterized reaction-transport equations in porous media, handling complex domain geometries and multiphysics coupled equations.
The new battery can capture oxygen from air and use it to oxidize zinc, creating a current of up to 1 volt. It powers an actuator, memristor, clock circuit, and sensors, making it ideal for robotics and medical applications.
Researchers at PolyU have invented a unique fluidic processor called Connected Polyhedral Frames (CPFs), which enables reversible switching between liquid capture and release. CPFs offer a versatile platform for various applications, including controlled multidrug release, biomaterial encapsulation, and air conditioning.
A novel printing technique allows for the creation of thin metal oxide films at room temperature, resulting in transparent and conductive circuits that can function at high temperatures. The technique uses liquid metals to deposit two-layer thin films with remarkable stability and flexibility.
Researchers at Dartmouth College developed a technique using light to imprint 2D and 3D images inside any polymer containing a photosensitive chemical additive. The technology enables the creation of erasable 3D displays with high resolution, applicable in surgeries, architectural designs, education, and art.
A new interpretable deep learning modeling architecture, LACG, is proposed to handle complex variable interactions in chemical processes. It achieves high-accuracy modeling results via the coupling of three sub-modules based on underlying logics. The model outperforms widely used neural networks in terms of interpretability.
Researchers at Pohang University of Science & Technology have unveiled an eco-friendly method to extract rare metals from semiconductor waste, recovering precious tungsten and assessing its economic viability. The bioleaching process, using a fungus to dissolve metals, is found to be 7% cheaper than traditional methods.
Researchers at the University of Houston have developed two nasal sprays, NanoSTING and NanoSTING-SN, to prevent respiratory virus transmission. NanoSTING is an immune activator that can protect against multiple viruses, while NanoSTING-SN is a pan-coronavirus vaccine that can prevent transmission to unvaccinated individuals.
Liheng Cai, a UVA engineering professor, has received a $1.9 million NIH grant to create advanced biomaterials that can be used to repair living tissues and build organ structures. His lab aims to develop polymers that mimic human biology and integrate healthy cells into the human body.
Researchers have reviewed advancements in wearable cuffless blood pressure monitoring, focusing on flexible electronics and machine learning. The integration of sensors, signal processing, and algorithms enables accurate blood pressure estimation, promising personalized medicine applications.
A new 3D printing method developed by UC San Diego engineers uses a polymer ink and salt water solution to create solid structures with ease. The process is reversible, allowing the PNIPAM ink to be reused for further printing.
Researchers at Chung-Ang University have discovered an additive that enhances the efficiency of perovskite solar cells, resulting in a record-breaking 12.22% efficiency. The additive, 4-phenylthiosemicarbazide, improves stability and reduces defects, paving the way for more accessible and long-lasting solar panels.
Research from the University of Illinois highlights the potential of organic nanozymes for broader applications beyond traditional uses of inorganic nanozymes. The development of sustainable, environmentally friendly materials offers a promising solution for various industries.
Researchers at the University of Illinois developed an eco-friendly method to precisely mix fluorine into olefins using natural enzymes and light, offering a more efficient strategy for creating high-value chemicals with potential applications in agriculture, pharmaceuticals, renewable fuels and more.
Researchers create fast and sustainable method to produce hydrogen gas using aluminum, saltwater, and coffee grounds. They find that adding caffeine speeds up the reaction, producing hydrogen in just five minutes.
Researchers at the University of Sydney have proposed a new way to reduce industrial emissions by utilizing liquid metals in chemical reactions. This approach aims to decrease energy requirements and lower greenhouse gas emissions.
Researchers from UNSW used magnetic fields to study singlet fission, a process that breaks light particles into smaller chunks, increasing efficiency. The study could lead to improved silicon solar cell technologies, potentially achieving over 30% efficiency and reducing energy costs.
Researchers at HKU have developed a new method to assess the stability of 2D materials, enabling controllable tuning of their mechanical properties. The study provides opportunities for modulating nano-scale instability morphology and physical properties of atomically thin films.
A new study links various soft material behaviors, revealing a critical parameter called the brittility factor that simplifies failure behavior. This finding helps engineers design better materials for future challenges.