Category: Chemistry

Scientists develop maleic acid-treated bacterial cellulose gel for enhancing bone repair

Apr 15, 2024 | ,

The field of bone tissue engineering (BTE) is a promising avenue for addressing bone injuries and defects by constructing artificial scaffolds with bionic functionalities. Due to its unique 3D network structure, impressive mechanical properties, and excellent biocompatibility, bacterial cellulose (BC) has emerged as a captivating area of research in the realm of scaffold fabrication.
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Research revives 1800s photos

Apr 15, 2024 | ,

Researchers from Western University developed techniques for creating images from old, badly tarnished photographs. These techniques could also be used to study other historic artifacts and fossils and prevent corrosion in modern materials.
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Paper coating biomaterials derived from anaerobic granular sludge may be cost-effective

Mar 7, 2024 | ,

The demand for paper and paperboard production continuously grows worldwide, particularly in the packaging industry. Due to the paper’s nature, it usually requires a surface coating to keep out water, oil, and other unwanted substances. These coatings can come with high financial and environmental costs. Using renewable coating materials that are also cost-effective can support sustainability strategies.
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How aromatic dissolved organic matter affects organic micropollutant adsorption

Mar 7, 2024 | ,

Activated carbon is employed for the adsorption of organic micropollutants (OMPs) from water, typically present in concentrations ranging from ng L−1 to μg L−1. However, the efficacy of OMP removal deteriorates considerably due to competitive adsorption from background dissolved organic matter (DOM), present at substantially higher concentrations in mg L−1. Interpreting the characteristics of competitive DOM is crucial in predicting OMP adsorption efficiencies across diverse natural waters.
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Novel method improves Fourier transform infrared spectroscopy detection of ultra-low concentration trace substances

Mar 7, 2024 | ,

Recently, a research team led by Prof. Gao Minguang and Associate Prof. Li Xiangxian from Hefei Institutes of Physical Science (HFIPS), Chinese Academy of Sciences (CAS) has developed a spectral resolution enhancement method based on linear prediction theory to expand the application of FTIR (Fourier Transform Infrared Spectroscopy) technology in the detection of multi-component ultra-low concentration trace substances.
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Novel material degrades a widely used antibiotic that contaminates water

Mar 4, 2024 | ,

Levofloxacin is a widely used antibiotic prescribed to treat pneumonia, bacterial rhinosinusitis, bacterial prostatitis, pyelonephritis, urinary tract infections, skin disorders, and skin structure infections, among other conditions. The drug is prevalent in aqueous environments owing to its low degradability in wastewater treatment plants and is therefore considered an emerging pollutant.
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Metal-based electrocatalysts for ammonia electro-oxidation reaction to nitrate/nitrite: Past, present and future

Mar 4, 2024 | ,

Recently, a research team led by Prof. Ji Liang from Tianjin University, China, systematically introduced the research progress on the preparation of nitrate/nitrite by ammonia electro-oxidation reaction and proposed different strategies to enhance the electrocatalytic performance of the catalysts by modulating their composition and structure to inhibit the side reactions and electrode corrosion in the electrocatalytic process, and finally proposes the opportunities and challenges faced by ammonia electrocatalysis as well as its development trend.
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New ways to strengthen biomimetic spider-silk

Mar 4, 2024 | ,

Researchers at Karolinska Institutet have found that spiders have a special trick to make their silk strong, by using a natural biocompatible molecular enhancer. By using the same secret the researchers are able to create biomimetic spider-silk fibers in a non-toxic way. The study is published in Advanced Functional Materials.
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Researchers uncover a feasible biomarker for coffee consumption

Mar 4, 2024 | ,

Millions of people around the world drink coffee every day. The beverage contains a large number of bioactive substances, and its health effects on the human metabolism are therefore frequently subjects of scientific studies. In many of these studies, however, the data on coffee consumption is largely based on self-reporting by the participants and is therefore not always accurate. This can affect the scientific validity of nutritional studies.
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A new type of metallacrown ether based on polyoxometalate opens research opportunities

Mar 1, 2024 | ,

Crown ethers were discovered in 1967. They were then modified by adding a metal-containing unit, creating metallacrown ethers. These metallacrown ethers have been the subject of intensive research. Depending on the molecular makeup of the metallacrown ethers and their resultant architecture, the properties and, therefore, the uses of the metallacrowns can change. They have many different uses currently, and ongoing studies continue to expand their application.
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Chemical etching method opens pores for fuel cells and more

Mar 1, 2024 | ,

A chemical etching method for widening the pores of metal-organic frameworks (MOFs) could improve various applications of MOFs, including in fuel cells and as catalysts. Researchers at Nagoya University in Japan and East China Normal University in China developed the new method with collaborators elsewhere in Japan, Australia, and China, and their work was published in the Journal of the American Chemical Society.
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Recycling research finds new process to transform glass fiber-reinforced plastic into silicon carbide

Feb 29, 2024 | ,

Glass fiber-reinforced plastic (GFRP), a strong and durable composite material, is widely used in everything from aircraft parts to windmill blades. Yet the very qualities that make it robust enough to be used in so many different applications make it difficult to dispose of—consequently, most GFRP waste is buried in a landfill once it reaches its end of life.
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Using light to control the catalytic process

Feb 23, 2024 | ,

Nature is amazing. It has developed in living organisms the ability to regulate complex biochemical processes with remarkable efficiency. Enzymes, natural catalysts, play a pivotal role in this regulation, ensuring the fulfillment of various physiological needs throughout a cell’s lifespan.
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Researchers conduct comprehensive review on preparation of MOF-based flame retardants via coordination bond cleavage

Feb 20, 2024 | ,

Since the first report of metal-organic framework (MOF)-based flame retardants in 2017, this research area has exploded. However, improving the flame-retardant efficiency of MOFs and expanding their application areas remain critical challenges. The physicochemical properties of MOFs are closely dependent on their topology, pore characteristics, and chemical composition, which can be modulated by targeted design.
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Coordination polymer crystals show promise as new generation of light sources for industry, medicine

Feb 20, 2024 | ,

New forms of the light-emitting materials called phosphors, with enhanced versatility relative to existing options, are being developed by researchers at the National Institute for Materials Science (NIMS) in Japan, with colleagues at Tokyo University of Science and Hokkaido University. Their work is published in the journal Science and Technology of Advanced Materials.
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Accelerating the discovery of single-molecule magnets with deep learning

Feb 20, 2024 | ,

Synthesizing or studying certain materials in a laboratory setting often poses challenges due to safety concerns, impractical experimental conditions, or cost constraints. In response, scientists are increasingly turning to deep learning methods that involve developing and training machine learning models to recognize patterns and relationships in data that include information about material properties, compositions, and behaviors.
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Chemists produce all eight possible variants of polypropionate building blocks from one starting material

Feb 19, 2024 | ,

To synthesize potential drugs or natural products, you need natural substances in specific mirror-image variants and with a high degree of purity. For the first time, chemists at the University of Bonn have succeeded in producing all eight possible variants of polypropionate building blocks from a single starting material in a relatively straightforward process. Their work has now been published in Angewandte Chemie International Edition.
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Applying green chemistry principles to iron catalysis

Feb 19, 2024 | ,

At the Leibniz Institute for Catalysis in Rostock, Dr. Johannes Fessler has developed new methods for the synthesis of drug precursors using catalysts made of iron, manganese and cobalt. Each of these three chemical elements has the potential to replace a number of noble metals that are commonly used in organic chemistry to catalyze fine chemicals.
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