278 results match your criteria: "College of Engineering and Physical Sciences[Affiliation]"

Suzuki-Miyaura coupling (SMC), a crucial C-C cross-coupling reaction, is still associated with challenges such as high synthetic costs, intricate work-ups, and contamination with homogeneous metal catalysts. Research intensely focuses on strategies to convert homogeneous soluble metal catalysts into insoluble powder solids, promoting heterogeneous catalysis for easy recovery and reuse as well as for exploring greener reaction protocols. Metal-Organic Frameworks (MOFs), recognized for their high surface area, porosity, and presence of transition metals, are increasingly studied for developing heterogeneous SMC.

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The production of set-type camel milk yogurt is challenging due to its unique physicochemical properties, which differ from those of other milk species. The present study aimed to evaluate the effects of camel milk supplementation with different levels (0, 3, and 6%) of whey protein concentrate (WPC) on the texture, rheological properties, antioxidant capacity, and biological activity of camel milk yogurt compared with bovine milk (BM) yogurt. These characteristics were evaluated before and after in vitro digestion of yogurt samples after 1 and 15 d of storage at 4°C.

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Unveiling the Sorption Properties of Graphene Oxide-M13 Bacteriophage Aerogels for Advanced Sensing and Environmental Applications.

ACS Appl Mater Interfaces

December 2024

School of Chemical Engineering, Advanced Nanomaterials Structures and Applications Laboratories, College of Engineering and Physical Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.

GraPhage13 aerogels (GPAs) are ultralow density, porous structures fabricated through the self-assembly of graphene oxide (GO) and M13 bacteriophage. Given GPA's high surface area and extensive porous network, properties typically associated with highly adsorbent materials, it is essential to characterize its sorption capabilities, with a focus on unlocking its potential for advanced applications in areas such as biomedical sensing and environmental monitoring. Herein, the water, ethanol and acetone sorption properties of GPA were explored using dynamic vapor sorption (DVS).

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From Code to Clots: Applying Machine Learning to Clinical Aspects of Venous Thromboembolism Prevention, Diagnosis, and Management.

Hamostaseologie

December 2024

Division of Hemostasis and Thrombosis, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States.

The high incidence of venous thromboembolism (VTE) globally and the morbidity and mortality burden associated with the disease make it a pressing issue. Machine learning (ML) can improve VTE prevention, detection, and treatment. The ability of this novel technology to process large amounts of high-dimensional data can help identify new risk factors and better risk stratify patients for thromboprophylaxis.

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Docosahexaenoic acid (DHA, C22:6 n-3), a predominant omega-3 polyunsaturated fatty acid in brain, plays a vital role in cerebral development and exhibits functions with potential therapeutic effects (synaptic function, neurogenesis, brain inflammation regulation) in neurodegenerative diseases. The most common approaches of studying the cerebral accretion and metabolism of DHA involve the use of stable or radiolabeled tracers. Although these methods approved kinetic modeling of ratios and turnovers for fatty acids, they are associated with excessive costs, restrictive studies, and singular dosing effects.

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Electroencephalography: electrode arrays in dogs.

Front Vet Sci

November 2024

Department of Clinical Studies, Ontario Veterinary College Health Sciences Centre, University of Guelph, Guelph, ON, Canada.

Electroencephalography (EEG) is the gold standard for confirming epileptic seizures in both human and veterinary patients. Despite idiopathic epilepsy being one of the most common neurological conditions in dogs, our understanding of it in veterinary medicine lags that in human medicine. The relative underuse of EEG in dogs with seizures has potential causes including practical issues, financial concerns, lack of training/equipment, and questions of clinical value.

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This study explored the effects of 1267 nm laser irradiation on changes in blood flow parameters and activation of the regulatory mechanisms of the microcirculatory bed (MCB). Using laser Doppler flowmetry (LDF) technique and time-frequency analysis of perfusion signals, changes in the MCB of 16 healthy volunteers, targeting the distal phalanx of the third finger with 1267 nm laser irradiation were evaluated. Results indicated no significant differences in perfusion between control and target measurements, likely due to blood flow redistribution caused by vessel dilation/constriction.

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Landau-Level Quantization and Band Splitting of FeSe Monolayers Revealed by Scanning Tunneling Spectroscopy.

Nano Lett

December 2024

State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China.

Two-dimensional (2D) superconductors that reside on substrates must be influenced by Rashba spin-orbit coupling (SOC). The intriguing effect of Rashba-type SOCs on iron-based superconductors (IBSs) has remained largely a mystery. In this work, we unveil modified Landau-level spectroscopy and the intricate band splitting of FeSe monolayers through the precision of scanning tunneling spectroscopy, which unequivocally demonstrates the presence of Rashba SOC.

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The 3D structure of native human skin is fundamental for studying skin health, diseases, wound healing, and for testing the safety of skin care products, as well as personalized treatments for skin conditions. Tissue regeneration, driven by tissue engineering, often involves creating full-thickness skin equivalents (FSE), which are widely used for developing both healthy and diseased skin models. In this study, we utilized human skin cell lines to create FSE.

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Objectives: One of the widely used optical biopsy methods for monitoring cellular and tissue metabolism is time-resolved fluorescence. The use of this method in optical liver biopsy has a high potential for studying the shift in energy-type production from oxidative phosphorylation to glycolysis and changes in the antioxidant defense of malignant cells. On the other hand, machine learning methods have proven to be an excellent solution to classification problems in medical practice, including biomedical optics.

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Advances in Sustainable γ-Valerolactone (GVL) Production via Catalytic Transfer Hydrogenation of Levulinic Acid and Its Esters.

ACS Sustain Chem Eng

November 2024

Energy and Bioproducts Research Institute (EBRI), College of Engineering and Physical Sciences, Aston University, Birmingham B4 7ET, United Kingdom.

γ-Valerolactone (GVL) is a versatile chemical derived from biomass, known for its uses such as a sustainable and environmentally friendly solvent, a fuel additive, and a building block for renewable polymers and fuels. Researchers are keenly interested in the catalytic transfer hydrogenation of levulinic acid and its esters as a method to produce GVL. This approach eliminates the need for H pressure and costly metal catalysts, improving the safety, cost effectiveness and environmental sustainability of the process.

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Mapping membrane biophysical nano-environments.

Nat Commun

November 2024

Department of Immunology and Immunotherapy, School of Infection, Inflammation and Immunology, College of Medicine and Health, University of Birmingham, Birmingham, UK.

Article Synopsis
  • The mammalian plasma membrane contains lipid domains with different properties, which are difficult to study because they look similar to the surrounding membrane and are too small for traditional optical microscopy.
  • Researchers combined a fluorescent probe with advanced microscopy techniques to obtain precise location data and insights about the membrane's environment, creating a detailed point pattern.
  • They developed algorithms to analyze these patterns and successfully visualized nano-domains in both artificial membranes and living cells, providing a new tool for studying membrane properties and their changes under external influences.
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Adhesive-augmented sternal fixation (AASF) has been investigated as an alternative to the clinical standard of cerclage wires; however, previous studies have focused on a full adhesive layer across the sternal midline, which acts as a barrier to bone healing. This study used a human cadaveric model to investigate if partial coverage AASF used in combination with wired fixation could provide adequate stability. Median sternotomies were performed on fifteen human cadaveric sterna.

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Potential toxic effects linked to taurine interactions with alkanolamines and diisopropylamine.

Discov Water

October 2024

School of Engineering, College of Engineering and Physical Sciences, University of Guelph, 50 Stone Rd E, Guelph, ON N1G 2W1 Canada.

Unlabelled: Diisopropylamine (DIPA), aminomethyl propanol (AMP), amino ethoxy ethanol (AEE), diethanolamine (DEA), ethanolamine (EA), pyridine (PYR) and methyl diethanolamine (MDEA) are used for carbon capture and to sweeten sour gas, and are found in groundwater. They are also used in cosmetic products. Taurine is abundant in the body, with key biological functions linked to its charged SO groups.

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Several studies emphasized on the preventive and therapeutic potential of Docosahexaenoic Acid (DHA, 22:6n-3) supplementation in chronic and age-related disorders including neurodegenerative diseases. Researchers principally studied the cerebral accretion of Lysophosphatidylcholine (LysoPC-DHA), the furthermost vital Lysophospholipid-DHA (LysoPL-DHA) in blood plasma. Nevertheless, the cerebral bioavailability of other LysoPL-DHA forms including Lysophosphatidylethanolamine (LysoPE-DHA), and Lysophosphatidylserine (LysoPS-DHA) were not extensively examined even though their vital biological functions in the brain.

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Combined toxicity of perfluoroalkyl substances and microplastics on the sentinel species Daphnia magna: Implications for freshwater ecosystems.

Environ Pollut

December 2024

School of Biosciences and Institute for Interdisciplinary Data Science and AI, University of Birmingham, Birmingham, B15 2TT, UK; Centre for Environmental Research and Justice (CERJ), University of Birmingham, Birmingham, B15 2TT, UK; The Alan Turing Institute, British Library, 96 Euston Road, London, NW1 2DB, UK; Robust Nature Excellence Initiative, Max-von-Laue-Straße 13, 60438 Frankfurt Am Main, Germany. Electronic address:

Persistent chemicals from industrial processes, particularly perfluoroalkyl substances (PFAS), have become pervasive in the environment due to their persistence, long half-lives, and bioaccumulative properties. Used globally for their thermal resistance and repellence to water and oil, PFAS have led to widespread environmental contamination. These compounds pose significant health risks with exposure through food, water, and dermal contact.

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Plastics are an indispensable part of modern life. Due to the harmful environmental consequences of petroleum-based plastic usage, there is an urgent need to replace them with biodegradable bioplastics that meet the sustainability standards required for a low environmental footprint. Here, we use plant-derived proteins to produce bioplastics.

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Unlocking Potential for Low-Carbon Hydrogen Production from U.S. Natural Gas Resources.

Environ Sci Technol

October 2024

Office of Industry and Strategic Partnerships, University of Wyoming, Laramie, Wyoming 82071, United States.

Hydrogen will potentially play a key role while transitioning to a net-zero economy. This study addresses resource, environmental, economic, policy, and societal issues related to low-carbon hydrogen production by steam methane reforming with carbon capture and storage in Wyoming and other natural-gas-rich states. For low-carbon hydrogen produced from natural gas and electricity supplies and which stores CO in saline reservoirs in Wyoming, the levelized cost of hydrogen (LCOH) ranges from $1.

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Article Synopsis
  • * The study analyzed the fatty acid composition in the eyes of Arabian sheep and camels, finding that the retina had the highest levels of DHA and AA, with notable differences between the two species.
  • * The research suggests that using ocular tissues from agri-food waste could be a sustainable method to produce beneficial fatty acids, impacting nutrition and healthcare.
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Challenges in radioecology following the new trends in UAE's agriculture and environmental changes: a review.

Environ Sci Pollut Res Int

October 2024

Department of Mechanical and Nuclear Engineering, College of Engineering and Physical Sciences, Khalifa University of Science and Technology, PO BOX 127788, Abu Dhabi, United Arab Emirates.

Article Synopsis
  • The nuclear industry's growth in the Arabian Gulf requires assessments of its environmental and human effects, including regular monitoring of nuclear facilities and modeling potential accidents.
  • Agriculture is particularly vulnerable to radioactive pollution, and recent trends show a shift towards utilizing saline lands due to climate change and population growth in the UAE.
  • Current risk assessments for nuclear incidents largely overlook arid environments, highlighting the need for targeted research on the effects of radionuclide migration in sandy soils, saline agriculture, and contamination of underground water reservoirs.
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Elemental analysis is a fundamental method for determining the carbon, hydrogen, nitrogen, sulphur, and oxygen (CHNSO) contents in organic materials. Automated conventional elemental analysers are commonly used for CHNSO determinations, but they face challenges when analysing volatile organic liquids due to sample losses. This present study explores the combination of gas chromatography-mass spectrometry (GC/MS) and gas chromatography-flame ionisation detection (GC/FID) as a more accurate alternative method for elemental analysis of such liquids.

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Conductivity optimisation of graphene oxide-M13 bacteriophage nanocomposites: towards graphene-based gas micronano-sensors.

Discov Nano

September 2024

School of Chemical Engineering, Advanced Nanomaterials Structures and Applications Laboratories, College of Engineering and Physical Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.

Graphene oxide (GO) and M13 bacteriophage can self-assemble to form ultra-low density porous structures, known as GraPhage13 aerogels (GPA). Due to the insulating nature of GPA and the challenges in producing highly conductive aerogels, it is paramount to explore ways to enhance the conductivity of GPA. Herein, we have developed a method to enhance the conductivity of GPA, via the integration and optimisation of 5 nm and 20 nm diameter gold nanoparticles (AuNPs) into the aerogel structure and systematically analysed the morphology, composition and spectroscopic properties of the resulting GPA-Au nanocomposite.

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We explore the propagation of structured vortex laser beams-shaped light carrying orbital angular momentum (OAM)-through complex multiple scattering medium. These structured vortex beams consist of a spin component, determined by the polarization of electromagnetic fields, and an orbital component, arising from their spatial structure. Although both spin and orbital angular momenta are conserved when shaped light propagates through a homogeneous, low-scattering medium, we investigate the conservation of these angular momenta during the propagation of Laguerre-Gaussian (LG) beams with varying topological charges through a turbid multiple scattering environment.

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Osteosarcoma (OS) is the mostly commonly occurring primary bone cancer. Despite comprehensive treatment programs including neoadjuvant chemotherapy and tumour resection, survival rates have not improved significantly since the 1970s. Survival rates are dramatically reduced for patients who suffer a local recurrence.

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