Articles tagged with Chemical Engineering
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.
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 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.
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 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 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 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.
Researchers are developing a framework to combine AI and human intelligence in process safety systems, aiming to enhance safety and efficiency. The study identifies challenges and benefits of using Intelligence Augmentation (IA) and proposes strategies for effective implementation to minimize risks.
A new handheld device enables rapid non-invasive detection of harmful chemicals and biological molecules using a Raman spectrometer and cellphone camera. This technology reduces analysis time from days to minutes, making it ideal for remote areas where laboratory spectrometers are impractical.
Researchers have created a novel process for producing acetylene from CO2, reducing reliance on petroleum feedstocks. The new method achieves high current efficiency of 92% and produces CaC2 with minimal sulfur and phosphorous content.
A team of scientists and engineers designed an electrolyte that maintains high power delivery during charging and discharging cycles. This innovation addresses the key challenge of low power delivery at landing stages in electric aircraft, where batteries are not fully charged.
Researchers achieved a new method for synthesizing α-substituted carbonyl compounds using a palladium-catalyzed anti-Michael addition reaction. The method produces high-yield products and can be applied to various nucleophiles, including indoles and aromatic compounds.
Researchers developed a technique to separate well-mixed mixtures, creating an economically viable process for synthesizing and purifying ionic liquids like [bmim][BF4]. High-purity [bmim][BF4] was produced with a purity exceeding 99%, and the recovered layer containing methylimidazole could be recycled.
Lehigh University researchers developed a novel spectroscopy technique called modulation excitation spectroscopy (MES) to study selective catalytic reduction (SCR) of nitrogen oxides. The results, published in Nature Communications, reveal the correct reaction pathway and have significant implications for optimizing catalytic converters.
Researchers at the University of California - San Diego developed a soft, stretchy electrode that can simulate pressure or vibration sensations using electrical signals. The device overcomes existing pain-inducing issues with rigid metal electrodes by conforming to the skin, providing localized stimulation.
Researchers at UNICAMP and UCA optimize anthocyanin extraction from jabuticaba peel, achieving a higher yield than traditional methods. The novel method uses biosorbent material derived from the residue, resulting in an efficient and environmentally friendly process.
Scientists developed a new approach to drive chemical reactions, generating compounds with unique pharmaceutical properties. The method uses photocatalysis and computational models to predict successful reactions, expanding the range of accessible substrates.
Researchers at Pohang University of Science & Technology (POSTECH) made a small change to develop highly efficient SOT materials. By creating an imbalance in the spin-Hall effect, they controlled magnetization switching without magnetic fields, achieving 2-130 times higher efficiency and lower power consumption than known single-layer ...
Glassy gels are a new class of materials that combine the properties of glassy polymers and gels, with unique characteristics including high elasticity and adhesive surfaces. The materials were created by mixing liquid precursors with an ionic liquid, resulting in a hard yet stretchable material.
Lopatkin's lab will investigate how bacterial metabolism contributes to antibiotic resistance using sophisticated tools and techniques. The research aims to identify drug-resistance mutations that arise in bacteria adapting to different antibiotics and metabolism-altering chemicals.
Researchers developed a 3D metamaterial capable of detecting polarization and direction of light, overcoming limitations of conventional optical devices. The breakthrough technology utilizes pi-shaped metal nanostructures with numerical aperture-detector polarimetry to analyze light distribution.
Researchers have engineered nanosized cubes that spontaneously form a two-dimensional checkerboard pattern when dropped on the surface of water. The self-assembly process is driven by surface chemistry, with hydrophobic and hydrophilic molecules interacting to create voids between the cubes.
Researchers developed a novel air-handleable garnet-type solid electrolyte technology that improves surface and internal properties, preventing contamination layer formation. This innovation enables the creation of ultra-thin lithium solid-state batteries with high energy density and low weight.
Researchers at Osaka Metropolitan University developed a machine learning-based deicer that offers higher performance while minimizing environmental harm. The new mixture of propylene glycol and sodium formate solution shows improved ice penetration capacity, reducing the need for substance use.
The Purdue method creates layered perovskite nanowires with exceptionally well-defined and flexible cavities that exhibit unusual optical properties. These nanowires show promising applications in nanophotonics and nanoelectronics, including anisotropic emission polarization and efficient light amplification.
Researchers at NIMTE have developed a fatigue-free ferroelectric material based on sliding ferroelectricity, eliminating performance degradation and device failure. The bilayer 3R-MoS2 dual-gate device retained its memory performance after 10^6 switching cycles.
Scientists aim to create a spray-on bandage that breaks down within 48 hours, providing time for proper treatment. The project uses enzymes to degrade polymer complexes, which will allow for controlled degradation and potential applications in drug delivery.
University of Illinois Chicago engineers have designed a new method to make hydrogen gas from water using only solar power and agricultural waste, reducing the energy needed to extract hydrogen from water by 600%. This process creates new opportunities for sustainable, climate-friendly chemical production.
Researchers at the University of Houston have identified a subset of T cells called CD8-fit that show high motility and serial killing capabilities in patients with clinical responses. These cells were discovered using a patented approach called TIMING, which evaluates cell behavior and movement to identify potential cancer-killing cells.
Researchers at Pohang University of Science & Technology developed a hybrid porous structure using polyvinyl alcohol, enabling uniform lithium electrodeposition. The new design facilitated the transport of lithium ions, reducing 'dead Li' areas and internal short circuits, resulting in high stability after 200 charge-discharge cycles.
Researchers developed adhesive hydrogel coatings that eliminate fibrosis, a common issue with medical implants. The coatings bind devices to tissue and prevent the immune system from attacking them.
Engineers have modelled a new way to recycle polystyrene that could make the material reusable. The technique uses pyrolysis to break down polystyrene into parts that can be reformed into new pieces of the material, reducing energy consumption and increasing yield.
Researchers aim to create polymers that can form the basis of effective sensors for applications in physiological, environmental, and Internet of Things monitoring. The goal is to increase energy efficiency and broaden material choices, enabling devices to operate at low voltage and interact with ions and transport ionic charges.
A low-cost, tin-based catalyst selectively converts CO2 to ethanol, acetic acid, and formic acid, producing valuable liquid hydrocarbons. The discovery could help reduce greenhouse gas emissions by converting CO2 into desired chemicals near the site of production.
Researchers at Aarhus University have developed a three-stage process to convert polyethylene (PE) into biodegradable polyester, addressing the issue of plastic waste. The method utilizes enzymes, microorganisms, and chemical processes to break down PE's strong carbon bonds.
Researchers at Pohang University of Science & Technology have developed the first wide field-of-hearing metalens, overcoming traditional acoustic lens limitations. The device achieves up to 140 degrees of field-of-hearing without sound distortion, enabling new applications in acoustic imaging and high-sensitivity sensing.
The team developed a deep learning AI technique to quantitatively analyze cation mixing using atomic structure images. This approach revealed that introducing metal dopants like aluminum, titanium, and zirconium into the transition metal layer fortified bonds between nickel and oxygen atoms, curbing cation mixing.
Researchers in Brazil have developed a novel method to produce electrochemical sensors using fallen tree leaves, offering an eco-friendly alternative to conventional substrates. The sensors were successfully tested for detecting dopamine and paracetamol concentrations, demonstrating their potential for medical and laboratory applications.
A team from Pohang University of Science & Technology has developed a memory transistor that can adjust its threshold voltage through photocrosslinking. The innovation combines two molecules with a polymeric semiconductor to form a stable bond, enabling precise control of the semiconductor layer's structure.
A research team at Waseda University has discovered a family of poly(thiourea)s (PTUs) with exceptional optical properties, including transparency over 92% and a refractive index of 1.81. The polymers can be easily degraded into simpler molecules, making them suitable for sustainable optoelectronic applications.
Researchers at the University of California San Diego developed a biodegradable form of thermoplastic polyurethane (TPU) filled with bacterial spores from Bacillus subtilis. The material breaks down in compost environments within five months, even without additional microbes.
A research group at Tsinghua University evaluates cutting-edge methodologies for converting CO2 to sustainable aviation fuel, assessing the practicality of current industrial models. The team notes accelerated progress in China's renewable energy sector and the European Union's Renewable Energy Directive III.
Researchers have created a more efficient light-driven molecular motor, which can be used for various applications such as controlling molecular self-assembly and creating chiral dopants in liquid crystals. The new design also enables the motor to work more efficiently in medical applications due to its longer wavelength absorption.
Researchers developed nanodots with single ferroelectric and ferromagnetic domains using multiferroic material BFCO, enabling energy-efficient writing and reading operations. The smaller nanodot showed a single-domain structure, while the larger one exhibited multi-domain vortex structures, demonstrating strong magnetoelectric coupling.
Researchers led by POSTECH Professor Yong-Young Noh discovered that tellurium oxide can function as a p-type semiconductor in oxygen-deficient environments. They successfully engineered high-performance amorphous p-type oxide Thin-Film Transistors (TFTs) with exceptional hole mobility and on/off current ratio.
Researchers from Pohang University of Science & Technology have fabricated a small-scale energy storage device that can stretch, twist, fold, and wrinkle. The device features fine patterning of liquid metal electrodes using laser ablation, allowing it to maintain its energy storage performance under repeated mechanical deformations.
Researchers at the University of Surrey have developed a technique to study lipids in live cancer cells, one by cell. This breakthrough could lead to more targeted treatments and better understanding of how individual cells communicate with their neighbors.
Researchers will develop 'live' joints with biocompatible bone and cartilage grown from human cells, aiming to scale up the technology for commercial use. The project, valued at $47.7M, targets 40 patients within five years with knee replacements.
Researchers developed sensors that detect plant signaling molecules, allowing farmers to monitor potential threats and intervene early. The sensors reveal distinctive patterns of stress responses, providing a real-time warning system for crops.
Researchers developed a framework to measure plastic pollution emissions, estimating Toronto emitted nearly 4,000 tonnes in one year. The approach will help identify major contributors and inform strategies to reduce emissions worldwide.
Researchers developed a technology to detect infectious disease viruses in real-time using a single nano-spectroscopic sensor. The system uses molecular fingerprinting and can detect specific substances with tailored detection, enabling rapid and precise analysis.
A Japanese research team analyzed oxygen and nitrogen stable isotope ratios in nitrate to differentiate between sake breweries. The study found a distinct N isotope signature across various types of sake within a single brewery, which could be used as a marker for authentication.
The team created ten holograms with varying colors and shapes using an inverse design technique driven by artificial intelligence. They integrated an oblique helicoidal cholesterics-based wavelength modulator to accurately implement the designed holograms, enabling the establishment of an optical security system.
New study uses high-powered microscopy and mathematical theory to unveil nanoscale voids in three dimensions. The findings show a strong correlation between unique physical properties of random empty space and improved filtration performance.
Scientists developed a force-controlled release system harnessing natural forces to trigger targeted release of molecules, advancing medical treatment and smart materials. The breakthrough uses rotaxane technology to release multiple functional molecules simultaneously, including medicines and healing agents.
A new statistical-modeling workflow can quickly identify molecular structures of products formed by chemical reactions, accelerating drug discovery and synthetic chemistry. The workflow also enables the analysis of unpurified reaction mixtures, reducing time spent on purification and characterization.
A new 3D printer developed by researchers at MIT and NIST can automatically identify the parameters for printing with unknown materials. This allows for the use of renewable or recyclable materials that were previously difficult to characterize, reducing the environmental impact of additive manufacturing.