Andrey Shishov

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Researchers created a new natural solvent using camphor and citral to effectively extract harmful chemicals called polycyclic aromatic hydrocarbons (PAHs) from foods like cucumber, salad, and tea. This method showed a high success rate, recovering 71-98% of the targeted chemicals, and could detect these harmful substances at very low levels, down to 0.1 micrograms per kilogram, which is well below the safety limits for food. This discovery is important because it offers a safe and efficient way to test food for harmful pollutants. Who this helps: This benefits food safety regulators, manufacturers, and consumers looking for cleaner food.

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Researchers created a new automated system that efficiently extracts tiny amounts of harmful chemicals called polycyclic aromatic hydrocarbons from drinking water and tea. They found that this system can detect these chemicals at very low levels, with a range of 0.1 to 6.9 micrograms per liter, and achieve high recovery rates between 85% to 114%. This matters because it allows for more precise and environmentally friendly monitoring of contaminants in our water and food. Who this helps: Patients and consumers concerned about the safety of their drinking water and food.

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This study looked at how processing waste tire oil can make it safer and more useful as fuel. Researchers found that using the NiMo/AlO catalyst significantly removed harmful compounds, achieving a reduction in toxic chemicals and improving fuel quality, though it still contained 0.200% polycyclic aromatic hydrocarbons (PAHs) and 0.0432% sulfur, which are above acceptable limits for commercial diesel. This matters because finding better ways to utilize waste from tires can help produce cleaner fuels, benefiting energy recovery and waste management efforts. Who this helps: This helps fuel manufacturers and environmental organizations.

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This study looked at different methods for extracting healthy compounds from milky ripeness oat grass. The researchers found that a new method combining fermentation with hot water produced the best results, yielding 4.93 mg of polysaccharides and showing a strong antioxidant activity of 66.3%. This matters because it offers a simple and sustainable way to create oat-based products that could enhance health benefits in food and supplements. Who this helps: Patients and consumers seeking nutritious food options.

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Researchers developed a new automated method to quickly extract and identify synthetic dyes in food, which are often harmful and banned. This method uses a special solvent that separates easily when heated, allowing for quick and efficient analysis without toxic chemicals. They tested it on banned dyes with very low detection limits, meaning it can find tiny amounts, and achieved reliable results that matched traditional methods. Who this helps: This benefits food safety inspectors and consumers concerned about toxic substances in their food.

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This study focused on developing new techniques to extract beneficial compounds from plants, which could help in creating new medicines. Researchers created two methods using special liquids called deep eutectic solvents (DES) and ionic liquids (IL) to extract specific compounds. They found that the best method using a DES showed an impressive detection limit of 0.05 mg/ml for rutin and 0.021 mg/ml for thymol, proving to be as effective or better than traditional methods using methanol. Who this helps: This helps researchers and pharmaceutical companies looking to develop new plant-based medicines.

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This study introduced a new type of solvent made from thymol and 1-(o-Tolyl)thiourea, which was used to measure levels of mercury and copper in edible oils. The method was able to detect very low levels of these metals, with mercury levels down to 3 micrograms per liter and copper down to 2.5 micrograms per liter, while achieving over 95% recovery rates and showing strong accuracy. This research is important because it offers a reliable and eco-friendly way to ensure that edible oils are safe from harmful metal contamination. Who this helps: Patients and consumers who want safer food options.

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This study focused on finding a new method to extract fluoroquinolone antibiotics from soil and sediment using a special type of solvent. The researchers found that using a mixture of choline chloride, malonic acid, and water was very effective, achieving over 90% extraction efficiency. This new technique not only simplified the extraction process but also detected these antibiotics at very low levels, between 2 to 3 micrograms per kilogram, which is important for monitoring environmental contamination. Who this helps: This helps environmental scientists and regulators by providing a more efficient way to test soil for harmful antibiotic contamination.

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This study examined how well nine environmentally friendly solvents could extract valuable compounds from the roots of Rubia tinctorum L., a plant known for its health benefits. The researchers found that two specific solvents, made from choline chloride and lactic acid or malonic acid, were the most effective, extracting high levels of important substances like gallic acid and quercetin. This is significant because it shows a sustainable way to obtain bioactive compounds that could be used in medicine or health products. Who this helps: This helps patients and health product manufacturers seeking natural sources of beneficial compounds.

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This study focused on developing a new, low-cost method to test water for a chemical called polyDADMAC, which is used for water purification but can be harmful in high amounts. Researchers created a simple technique that uses a smartphone to detect polyDADMAC levels as low as 10 micrograms per liter, with a clear measurable range between 30 and 120 micrograms per liter. This is important because it enables better monitoring of water quality without needing expensive lab equipment, helping to prevent potential health risks from contaminated water. Who this helps: This benefits water quality testers, environmental agencies, and communities relying on safe drinking water.

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This study looked at how to effectively extract valuable compounds from the Iris sibirica plant using special solvents called deep eutectic solvents (DESs). Researchers found that by changing the ingredients of these solvents, they could selectively collect various beneficial substances, identifying a total of eleven important phenolic compounds. One particular mix of choline chloride and lactic acid improved extraction efficiency by up to 2.6 times compared to traditional methods, which is significant for producing plant-based products. Who this helps: This benefits researchers and manufacturers working with plant extracts.

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This study looked at a new method for detecting tiny amounts of arsenic in food, specifically rice and wheat. Researchers developed a technique using a special type of solvent that successfully extracted arsenic from food samples with a high accuracy rate; they achieved a 95% recovery rate of arsenic with a concentration boost of 57 times, making it possible to detect levels as low as 10 nanograms per liter. This is important because it can help ensure food safety by allowing better monitoring of arsenic, which can be harmful to health. Who this helps: This helps food safety regulators and health-conscious consumers.

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This study explored how special tiny particles called tin oxide nanoparticles can help clean polluted water using UV light. Researchers found that by adjusting the nanoparticles' structure, they could effectively degrade a harmful mixture of antibiotics by more than 95% in just 35 minutes. This is important because it shows that these nanoparticles can efficiently purify water, even in areas with high pollution levels. Who this helps: This benefits patients, especially those affected by antibiotic pollution in water sources.

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This study focused on developing a new method to extract and identify harmful pesticides from peanut paste using a special technique. Researchers found that their method effectively separated two pesticide isomers with very low detection limits of 0.3 micrograms per kilogram, and it achieved extraction recoveries of 93-95%. This is important because it allows for safer food testing by accurately detecting dangerous chemicals in foods with high fat content. Who this helps: This benefits food safety inspectors and consumers concerned about pesticide contamination in food.

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This study investigated a new method for extracting and measuring isoniazid, a key drug for treating tuberculosis, from human blood plasma. Researchers developed an innovative solvent that allowed them to effectively separate and identify isoniazid, achieving a detection limit of 20 micrograms per liter and a recovery rate of 95%. This method is important because it simplifies the testing process, potentially leading to more personalized and effective treatments for tuberculosis patients based on their individual responses to the drug. Who this helps: Patients with tuberculosis who need tailored treatment plans.

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This study looked at a new method for extracting chemicals called phthalates from baby food packed in plastic, using a special type of green solvent made from natural ingredients. Researchers found that they could effectively concentrate these harmful chemicals using a simple process that didn’t require filtering the sample, achieving detection limits as low as 10 micrograms per kilogram for several types of phthalates. This matters because it provides a safer and more environmentally friendly way to test baby food for potentially harmful substances. Who this helps: This helps parents, food safety regulators, and manufacturers by ensuring baby food is tested for safety.

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This study focused on a new method called effervescent-assisted dispersive micro-solid phase extraction (EA-μ-dSPE) to better detect harmful emerging pollutants in the environment. The researchers found that using carbon dioxide to help distribute the sorbent in liquid samples greatly improved extraction efficiency, making the process faster and more effective while also being more sustainable. This matters because it enhances our ability to identify and measure these pollutants, which are a growing threat to both the environment and human health. Who this helps: This helps scientists and environmental researchers working to monitor and manage pollution levels.

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This study focused on a new method to quickly and safely measure acrylamide, a potentially harmful chemical found in fried foods, like beetroot and corn chips. Researchers created a fully automated extraction process that can detect acrylamide at levels as low as 0.01 mg/kg without using harmful chemicals. This is important because it helps ensure food safety by making it easier to monitor acrylamide levels in popular foods consumed by many people. Who this helps: This benefits consumers, especially families and children who eat fried foods.

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This research focused on using a new type of solvent called deep eutectic solvent (DES) to detect tiny amounts of metals like mercury, copper, lead, and cadmium in food. The study found that their new method was very effective, achieving low detection limits of just 0.6 micrograms per kilogram for cadmium and up to 6 micrograms per kilogram for other metals. This matters because it allows for more efficient and environmentally friendly testing of food products for harmful metals, ensuring safer food for consumers. Who this helps: This benefits consumers and food safety regulators.

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This study looked at a new method to extract bisphenols, harmful chemicals often found in milk, using a process that involves breaking down milk fats. The researchers found that their method effectively extracted bisphenols with a recovery rate of 95-97% and could detect them in very small amounts, as low as 0.3-0.5 micrograms per kilogram. This is important because it helps ensure milk safety by allowing better monitoring of toxic substances. Who this helps: This helps patients and consumers by improving the safety of milk products.

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This study focused on finding a new method to extract and analyze harmful dyes, specifically Sudan I, II, and III, from chili sauces using a technique called liquid-liquid microextraction. Researchers developed a system that uses low-viscosity natural solvents, requiring only a tiny amount (100 microliters), to achieve fast and effective extraction, with recovery rates between 87% and 95% in just 2 minutes. This method avoids hazardous chemicals and improves safety during food testing, making it easier to ensure the food we consume is free from dangerous dyes. Who this helps: Patients and consumers seeking safer food products.

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This study focused on developing a new and eco-friendly method to test the quality of biodiesel by measuring the levels of water and certain metals. The researchers found that their method could accurately detect water levels as low as 100 mg/kg and metals within a range of 0.03-3 mg/kg, which is a significant improvement in terms of safety and efficiency compared to traditional methods. This matters because controlling water and metal content in biodiesel is crucial for preventing fuel degradation and corrosion, ensuring better performance and longevity of engines that use this fuel. Who this helps: This helps biodiesel producers and fuel quality testers.

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This study looked at a new way to separate and analyze 14 different metals found in plant samples using special solvents made from choline chloride and carboxylic acids. The researchers found that the solvent made from choline chloride and malic acid was particularly effective, achieving metal extraction rates between 73% and 88%. This is important because it allows for a more efficient and simpler method of analyzing metals in plants without needing complex equipment like microwaves. Who this helps: This helps researchers and farmers who need to test plant samples for metal content.

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This study developed a new method to quickly and easily separate lead and cadmium from vegetable oil samples. The researchers found that they could detect lead at very low levels (0.01 micrograms per kilogram) and cadmium at even lower levels (0.006 micrograms per kilogram) with strong accuracy, achieving more than 36 times the concentration of these metals in the samples. This is important because it provides a reliable way to test vegetable oils for harmful metals, helping to ensure food safety. Who this helps: This benefits consumers and health regulators who want to ensure that vegetable oils are safe for consumption.

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This study looked at a new method for extracting harmful chemicals called polycyclic aromatic hydrocarbons from powdered milk. Researchers found that by breaking down milk fats into fatty acids, they could create a more effective extraction solution, which improved detection accuracy to levels as low as 0.002 micrograms per kilogram. This method is important because it avoids using dangerous solvents and works well to extract these chemicals, making milk safer for consumption. Who this helps: This benefits food safety regulators, consumers, and milk producers.

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This study explored a new way to create small, electrically conductive copper patterns and films using a laser and special solvents. The researchers improved the efficiency of the process by pretreating the substrate before using the laser, allowing them to produce high-quality patterns more quickly and with a single, standard laser system. This method is important because it can enhance the properties of the copper patterns for various applications, like electronics. Who this helps: This benefits engineers and manufacturers working in electronics and microfabrication.

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This research studied how mixtures of tetrabutylammonium bromide and nonanoic acid behave as deep eutectic solvents, which may offer safer alternatives to traditional solvents. The scientists found that a specific mixture with a 1:2 ratio created a unique substance with reduced melting points and specific physical properties due to the formation of hydrogen bonds. Understanding these mixtures is important because they could help make chemical processes safer and more environmentally friendly. Who this helps: This benefits industries looking for safer, greener solvents.

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This study looked at a new, efficient method for extracting important compounds from vegetable oil using a special rotating disk coated with a deep eutectic solvent. Researchers found that this method could accurately separate phenolic compounds, with the amounts detectable ranging from 10 to 60 micrograms per liter, and allowed for quicker extraction times compared to older methods. This matters because it improves the efficiency of identifying beneficial compounds in food products, which can enhance quality and safety. Who this helps: This helps food scientists and manufacturers by providing a better tool for analyzing food quality.

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This study examined a new method for extracting tetracycline, an antibiotic, from milk using special solvents made from natural compounds like thymol and octanoic acid. The researchers found that their unique mixture significantly improved the extraction process, making it easier to identify tetracycline in the samples. This improvement could lead to better monitoring of antibiotic residue in milk, which is important for food safety and public health. Who this helps: This benefits food safety officials and consumers concerned about antibiotic residues in dairy products.

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Researchers created a new sensor using hollow core optical fibers that can detect non-steroidal anti-inflammatory drugs (like mefenamic acid and diclofenac) in human urine. This sensor showed a high level of accuracy, with a detection limit of just 3 micrograms per liter for all drugs tested. This innovation matters because it allows for easier and more sensitive testing for these medications, which can be important for monitoring medication use and potential overdoses. Who this helps: This helps patients and doctors by providing a more effective tool for drug detection in medical settings.

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This study explored a new and efficient method for detecting very small amounts of chromium in water using a special solvent mixture. Researchers found that their method could concentrate chromium by a factor of 53, achieving an extraction recovery rate of 89%, and could detect chromium at levels as low as 5 nanograms per liter. This is important because chromium can be harmful to health, and improving detection methods helps ensure water safety. Who this helps: This helps patients, environmental scientists, and water safety regulators.

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This study developed a new automated method to test for certain antibiotics called sulfonamides in urine samples, using a special type of solvent. The method can detect low amounts of these drugs—0.06 mg/L for sulfapyridine and sulfamethoxazole, and 0.1 mg/L for sulfamethazine—and allows results to be obtained in under 10 minutes. This is important because it offers a quick and effective way to monitor these medications, which can help manage their use and prescription. Who this helps: This benefits doctors and healthcare providers who monitor medication levels in patients.

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This study explored a new method for extracting chromium (VI) from beverages using a special type of solvent that helps separate certain chemicals. The researchers found that their automated technique could detect chromium at very low levels, down to 0.2 micrograms per liter. This method is significant because it makes testing for harmful substances in drinks quicker, simpler, and more environmentally friendly. Who this helps: This benefits food and beverage safety regulators and consumers concerned about chromium levels in their drinks.

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Researchers developed a new method to detect harmful compounds called phenols in smoked foods. They found that their method could accurately identify very low levels of these phenols, with detection limits as low as 0.3 micrograms per kilogram for some compounds. This is important because it can help ensure the safety of smoked food products by monitoring for potentially harmful substances. Who this helps: This benefits food safety authorities and consumers.

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This study looks at a rare case of a one-month-old baby who developed meningitis caused by enterovirus, specifically the Coxsackie B type. The baby had high levels of the virus detected in their spinal fluid, while the mother had lower levels of the virus detected after the baby, indicating that older children may have been the original source of the infection. This research highlights the importance of monitoring enterovirus cases in young infants since they are more vulnerable to severe infections. Who this helps: This helps doctors and parents of young children by raising awareness of the risks of enterovirus infections.

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This study explored a new method for extracting specific substances from liquids using a special solvent that breaks down in water. Researchers found that when combining certain ingredients, they could effectively extract 17β-estradiol, a hormone, from skin gel samples with a high success rate of 95%. This method is quick, easy, and cost-effective, which could improve the analysis of chemicals in various products. Who this helps: This benefits chemists and researchers who need reliable ways to extract and analyze substances in their work.

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Researchers studied a new method for depositing copper on surfaces using a laser and special solvents called deep eutectic solvents. They found that this approach allowed them to deposit copper more than 150 times faster than traditional water-based methods. This is important because it could lead to faster and more efficient production of electronic devices and other technologies. Who this helps: This benefits manufacturers of electronics and engineers working on advanced materials.

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This study examined the symptoms and effects of Herpes zoster (shingles) in infants by analyzing two rare cases. They found that one baby girl experienced a rash and weakness in her left hand, while another developed the infection in the womb, showing unusual symptoms linked to the virus. Understanding these cases is important because it helps identify how Herpes zoster can manifest in young children, which can lead to better diagnosis and treatment. Who this helps: This information benefits doctors and healthcare providers working with infants.

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This study introduced a new method for preparing biodiesel samples to automatically measure certain harmful substances known as anions (like chloride and nitrate). The researchers developed a specialized device that efficiently extracts these chemicals from biodiesel, achieving very low detection levels—down to 1 microgram per kilogram for some anions. This is important because it helps ensure that biodiesel meets safety standards by monitoring contaminants effectively. Who this helps: This benefits fuel producers and regulators ensuring biodiesel safety.

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This study focused on creating a new method to quickly and accurately measure small amounts of arsenic and selenium in water and liver samples. Researchers developed an automated system that could detect these trace elements at very low levels, specifically as low as 0.01 micrograms per liter. This matters because arsenic and selenium are important to monitor due to their potential health risks. Who this helps: This helps environmental scientists and public health officials who need to ensure safety in drinking water and food sources.

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This study looked at patients who were mistakenly diagnosed with acute neuroinfections or similar conditions when they actually had different issues, like subarachnoid hemorrhage or brain tumors. Researchers examined 46 patients aged 18 to 83, analyzing their medical history, symptoms, and tests including brain scans and cerebrospinal fluid analysis. They found that misdiagnoses often occurred because many symptoms, such as fever and confusion, can look similar across different conditions, highlighting the need for careful, multi-faceted assessments to ensure accurate diagnosis. Who this helps: This benefits doctors by improving diagnostic accuracy to better treat patients with neurological conditions.

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This study developed a simple and cost-effective method to measure hydrogen sulfide levels in fuel oils using a paper-based device. Researchers found that this method can detect hydrogen sulfide concentrations as low as 0.6 mg per kg, and works well for samples containing between 2 to 20 mg per kg. This is important because monitoring hydrogen sulfide is crucial for environmental safety and product quality in the fuel industry. Who this helps: This helps fuel industry workers and environmental regulators.

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This study looked at a 15-month-old child who developed vaccine-associated paralytic poliomyelitis (VAPP) after receiving an incorrect vaccination with an oral polio vaccine. The illness started suddenly and progressed quickly over 2-4 days, resulting in lasting effects, and laboratory tests showed particular changes in the child's cerebrospinal fluid. This finding highlights that VAPP can occur due to vaccination errors, stressing the importance of accurate immunization practices. Who this helps: This helps patients, doctors, and healthcare providers focused on vaccination safety.

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This study looked at deep eutectic solvents (DESs) as a new type of solvent for a method called dispersive liquid-liquid microextraction, which helps separate substances in a liquid. The researchers found that using DESs improved the extraction efficiency compared to traditional solvents. This is important because it could lead to better methods for extracting and analyzing various substances in fields like environmental testing or health diagnostics. Who this helps: Patients and labs that require accurate testing of biological or environmental samples.

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Researchers developed a new, faster way to test fruit and berry juices for harmful pesticides, specifically malathion, diazinon, imidacloprid, and triadimefon. They combined a technique that uses a sugary solution to extract the pesticides with advanced testing equipment, showing they could reliably measure pesticide levels in juices with detection limits as low as 0.03 mg/L. This method is simpler and cheaper than older ones, making it easier to ensure fruit juice safety for consumers. Who this helps: This helps consumers and food safety regulators ensure that fruit juices are free from harmful pesticide levels.

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This study developed a new method to measure procainamide, a medication, in human saliva using a simple extraction process with an eco-friendly solvent. Researchers found that their method could accurately detect procainamide at very low levels (as low as 1.5 x 10^-8 mol/L) and produced reliable results similar to a more complex technique. This matters because it offers a faster and greener way to test for this important drug, which could improve monitoring in patients. Who this helps: This helps patients taking procainamide and their doctors by providing a quick and efficient testing method.

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This study developed a simple automated method to detect petroleum products in water using a two-step process. The method involves extracting the petroleum products from the water and then measuring their concentration, which was found to reliably identify levels as low as 1 microgram per liter. This matters because it provides an efficient way to monitor water pollution, helping to protect the environment and public health. Who this helps: This helps environmental scientists and water quality regulators.

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Researchers developed a new method to measure methanol and ethanol levels in biodiesel using a technique that combines vapor permeation with voltammetric detection. They found that this method can accurately detect as little as 0.02% of either methanol or ethanol and can handle five samples per hour. This is important because it allows for better quality control in biodiesel production, ensuring that harmful levels of these substances are identified quickly. Who this helps: This benefits biodiesel producers and regulators ensuring fuel quality and safety.

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This study looked at a specific type of crystal called [Tb(NO)(Acac)(Phen)]·HO, which is known for its bright light emission and a unique phenomenon called triboluminescence (light produced when the crystal is rubbed or broken). Researchers used X-ray analysis to figure out the detailed structure of these crystals, finding that they have a specific shape and arrangement of atoms that contribute to their glowing properties. They determined key measurements of the crystal, such as its size and angles, and discussed how its structure helps create the ability to produce light when stressed. Who this helps: This research benefits scientists and engineers working on materials for lighting and displays.

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This study explored a new method for measuring glycerol levels in biodiesel using a unique setup with floating beads that hold special chemicals. The researchers found that their technique could accurately detect glycerol concentrations from 100 to 1000 milligrams per kilogram, with the smallest amount they could reliably measure being 30 milligrams per kilogram. This is important because it helps ensure biodiesel quality, which is vital for engine performance and environmental safety. Who this helps: This benefits biodiesel producers and quality control laboratories.