The EVA methodology that will be presented consists in a hydrophilic polymer of ethylene-vinyl acetate (this is the origin of the acronym EVA) admixed with very fine particles of solid-phase sorbents (strong anion and cation exchangers added with hydrophobic resins such as C8 and [....] » Read More
Metals and alloy systems have different phases at different temperatures and these phases are described in phase diagrams depending on the alloy composition. A series of alloy systems, shape memory alloys exhibit a peculiar property called shape memory effect at the β-phase [....] » Read More
Reactive oxygen species (ROS) are a group of highly reactive oxygen centred free radical chemical species in normal and cancer cells. In normal cells, ROS are maintained in tight control of level of the antioxidants. On the other hand, the level of ROS is generally elevated in ca [....] » Read More
The ubiquitous presence of sp3 C−H bonds in natural feedstock makes them inexpensive, easily accessible, and attractive synthons for the preparation of common and/or complex molecular frameworks in biologically active natural products, pharmaceutics, agrochemicals, and mate [....] » Read More
The research work, carried out with the participation of this competition applicant, was devoted to, first of all, the structural analysis of molecular (multi-electron) systems using 1H and 13C nuclear magnetic resonance (NMR) spectra. In a number of cases, other NMR spectra (apa [....] » Read More
Over the last few decades research on the cannabinoids has gone through several distinct phases: 1) research on the plant cannabinoids, mostly on tetrahydrocannabinol (THC) and cannabidiol (CBD); 2) research on the endogenous cannabinoids, mostly on anandamide and 2-arachidonoyl [....] » Read More
The levels of activity concentration of 90Sr and 137Cs in fish of two most contaminated water bodies in the Chornobyl Exclusion Zone – lakes Vershyna and Azbuchyn were studied. A change in the hydrological regime of the Chornobyl NPP cooling pond due to decommissioning of t [....] » Read More
The synthesis and consolidation of High Entropy-Ultra-High Temperature Ceramics (HE-UHTCs) based on transition metal borides is addressed in this work. This emerging class of ceramics is based on the combination, in near equimolar proportions, of at least four constituents to gen [....] » Read More
Quantum nanotechnology is a field of nanotechnology research based on quantum mechanics. In quantum nanotechnologies, attention is paid to the use of quantum natural phenomena in nanomaterials and nanosystems. Such nanomaterials include quantum dots, quantum wells [2], quantum wi [....] » Read More
In connection with the study and fixation of Georgia's pollution with heavy metals, specialized geochemical studies were carried out regarding highways. The purpose of the study was to establish and identify soil pollution halos along the highways from the Western parts of Ge [....] » Read More
A carcinogen in any agent able to cause cancer in humans or animals, increases cancer incidence or malignancy, or shortens the latency period. A chemical is considered carcinogenic after being intensively studied by researchers and after one or more agencies evaluated the evide [....] » Read More
The importance of metal ions to essential functions of living systems and for the wellbeing of living organisms is well known. Metal ions are fundamental elements for the maintenance of the life spans of the human, animals and plants. The stability constants of Cd2+, Fe2+ and Zn2 [....] » Read More
More anomalous transport behaviors have been observed with the rapid progress in nanofabrication technology and characterization tools. The ions/molecules inside nanochannels can act dramatically different from the bulk systems and exhibit novel mechanisms. Here, we have reported [....] » Read More
Medical device implantation improved lives of millions of people through surgical procedures. There is a rising demand for implants and biomaterials across the globe. The permanent biomaterials used in implantable devices comprise metals, ceramics and polymers, metals being [....] » Read More
The innovative design of sustainable noble-metal-free heterojunctions remains a key challenge for highly efficient and durable photo catalytic H2 production. In this study, it was revealed that the CZTS (Cu2 ZnSnS4 ) nanoparticles may serve as a catalyst and a p-type semiconducto [....] » Read More
Chloramine-T in the hydrate form has been used in various types of chemical reactions. This prompted us to utilize chloramine-T as mild oxidant for oxidizing alcohol to aldehydes. Allylic amination of β-apopicropodophyllin and epoxidation of podophyllotoxone were successfull [....] » Read More
The present paper explains the study of Static Permittivity, Density and Ultrasonic Velocity and derived properties for the binary mixtures of Dimethylacetamide (DMA) with four isomers of tertiary alcohols over the entire concentration range were measured at 300 K. Using Experime [....] » Read More
Fatal pesticide poisoning is common since pesticides are inexpensive, easy to obtain, and widely available. Hence, identification of pesticides in human biological samples such as serum, blood, urine, and saliva is extremely crucial in homicidal and criminal investigations. One o [....] » Read More
Ionic liquids are an important and interesting application-oriented molecules. Ionic liquids consist of organic cationic segment which is pharmaceutically active and a simple inorganic anion which is easily soluble in water, hence ionic liquids are used in pharma industries. Dime [....] » Read More
In the scientific and technical literature, there are quite a number of points of view on the mechanism of reactions between metals and liquid systems. However, the micromechanism of these reactions is not fully considered. But knowledge of this mechanism is necessary to create e [....] » Read More
Most agricultural residues such as cornhusks, bagasse, sugar cane leaves, guinea grass are widely available agro plant residues in the world. Those materials are known as lingo cellulosic materials also. Lignocellulosic plant materials are a matrix of hemicelluloses wrapped aroun [....] » Read More
Ni-Mn based ferromagnetic Heusler alloys have gained much attention because they have applications in many areas such as magnetic refrigeration, sensors, magneto-mechanical devices and energy-harvesting devices. In present work we investigate the structural, martensitic and magne [....] » Read More
Diabetes is a disease that negatively affects human life, can cause serious and permanent damage to vital organs if not treated, and is one of the most common causes of death in recent times. Use of plants for medicine, food and cosmetics; It started with the existence of man and [....] » Read More
“The need for efficient and practical synthesis of biologically active molecules remains one of the greatest intellectual challenges with which chemists are faced in the 21st Century”. Throughout the ages humans have relied on Nature to cater for their basic needs, n [....] » Read More
A series of fifteen 2-substituted-3-(4-(pyridin-2-yl)-6-(1H-pyrrolo[2,3-b]pyridin-4-yl)pyrimidin-2-yl)thiazolidin-4-one, was prepared and characterized using analytical techniques like FT-IR, NMR (1H & 13C), and mass spectrophotometry. On screening, the compounds for antibact [....] » Read More
Silicon carbide is recognized as a potential, environmentally friendly SiC with ZnO for lubricant additives. A tribomete is used to test the anti-corrosion and anti-wear properties of a dispersed nanocomposite of SiC and produced ZnO nanoparticles in an ionic liquid (1-octyl-3-me [....] » Read More
It is known that pharmaceuticals play an important role for humanity. However, the release of drugs into the environment by end products or other means can contaminate ground and surface water, soil and microorganisms. Therefore, in order to prevent environmental pollution by pha [....] » Read More
The levels of activity concentration of 90Sr and 137Cs in fish of two most contaminated water bodies in the Chornobyl Exclusion Zone – lakes Vershyna and Azbuchyn were studied. A change in the hydrological regime of the Chornobyl NPP cooling pond due to decommissioning of t [....] » Read More
In this invited lecture, enhanced physical properties of hybrids composed of γ-Al2O3 nanorods and reduced graphite oxide (rGO) platelets will be discussed which are prepared after calcination and hot-press processing. The hybrid processed at various calcination time shows a [....] » Read More
This study proposes a new method for the fast quantification of benzothiazoles (BTs), benzotriazoles (BTRs), and benzenesulfonamides (BSAs) in tap water, river water, and wastewater. The presented approach is based on the use of microextraction by packed sorbent (MEPS) combined w [....] » Read More
Borehole water is an invaluable resource to all socio-economic activities. A drinking water basin underlain by the rocks of the Apollonian and the Birimian supergroup in Ghana, is characterized by rampant small-scale mining (legal and illegal). These activities have contributed t [....] » Read More
A small library of aryl triazole-scaffold derivatives have been developed using click chemistry synthetic strategies. Docking studies using PD-L1 and VEGFR-2 crystallographic data confirmed their potential targeted action. The antiproliferative activity on monocultures of several [....] » Read More
Energetic materials such as explosives and solid propellants are typically manufactured in batch processes. Poor heat and mass transfers in batch vessels can lead to products produced with significant batch-to-batch variations, including inconsistent purity and wide particle size [....] » Read More
Plasmonic materials are subjects of great interest due to their potential for a wide range of applications such as: catalysis, optoelectronics, drug delivery, etc. One particularly intriguing aspect is the ability of metal nanoparticles (NPs) to exhibit localized surface plasmon [....] » Read More
An anti-inflammatory skin condition is treated with fluocinolone acetonide (FLA), a synthetic corticoid. The current study aims to develop a stability-indicating UPLC method for the determination of impurities present in fluocinolone acetonide and its topical oil formulation. The [....] » Read More
In this work m acrodisperse silica was synthesized by the hydrolysis of diluted liquid glass (≈15w.% of SiO2, molar SiO2/Na2O≈3.0) with 1N H2SO4. The liquid glass was added to the solution of sulfuric acid while continuous mixing until the pH of the reaction mixture a [....] » Read More
The aim of the study was to investigate the antibacterial activity of a synthesised library of new tetrazolo phenylhydrazone derivatives of quinoline. A small library of fifteen quinoline tetrazolo phenylhydrazones were synthesised in a four-step reaction, which involved the f [....] » Read More
Worldwide water shortage due to water pollution, climate change and population growth has become a critical challenge to solve. The most important challenges of the polyamide thin film composite PA(TFC) membranes are: (i) improving the membrane performances and (ii) enhanci [....] » Read More
Batteries constitute one promising solution regarding the ongoing transition towards a low-carbon economy. Electrochemical energy storage will enable the decarbonisation of both the transport and power sector. The complexity of physico-chemical processes inside batteries renders [....] » Read More
The constantly rising carbon dioxide (CO2) emissions at the earth’s atmosphere highlight the necessity of implementing mitigation strategies to restore carbon balance. In this direction, CO2 is captured and then used as feedstock to produce high added value products, such a [....] » Read More
Title : Theoretical modeling in organic nanophotonics: Processes and devices
Alexander Bagaturyants, Russian Academy of Science, Russian Federation
Multiscale atomistic simulation methods are applied to studying excited molecules in organic materials and their interaction with neighboring molecules. The formation of exciplexes at the interface between layers of organic molecules in multilayer structures, typical for organic [....] » Read More
Title : Are you harming the environment with your research ? Introducing novel environmentally friendly chemistries
Thomas J Webster, Interstellar Therapeutics, United States
Many scientists blame large industries for harming the environment, such as the oil and petroleum, automobile, airline, construction, etc. industries. This presentation will highlight how through our own research in our own laboratories we too are harming the environment. Whether [....] » Read More
Title : H2S: A new comprehension of its role in human activity
Startsev Anatolii Nikolaevich, G.K. Boreskov Institute of Catalysis, Russian Federation
The concept of the decisive role of solid catalysts in the reaction of low-temperature decomposition of H2S is considered in the framework of non-equilibrium thermodynamics of an irreversible process in an open system [1]. The reaction proceeds at room temperature without the use [....] » Read More
Title : Activity trends in electrochemical reduction of nitrate to ammonia on transition metals
Mohammadreza Karamad, The University of Calgary, Canada
Electrochemical reduction of nitrate (NO3RR) offers an attractive route for ammonia synthesis and simultaneously alleviates environmental concerns for nitrate pollution. A critical step for large-scale implementation of this technology is the development of catalyst materials tha [....] » Read More
Title : Novelty determination in the design of drug molecules' chemical formula
Sunil Kumar, Nottingham Trent University, United Kingdom
The primary motivation behind choosing the topic is to analyze the novelty criteria for Active Pharmaceutical Ingredients (API) products and process patents. As a pharma chemist specializing in organic chemistry, the genuine concern is whether a general Markush structure could de [....] » Read More
Title : Mediplas: More than a simple ozone generator
Stefan Nettesheim, Relyon plasma GmbH a TDK group company, Germany
Dielectric barrier discharge flow reactors are among the most efficient technologies to produce ozone based on oxygen. If ambient air is used the chemistry gets much more complex and involves many competing reaction pathways and yields a mixture of ozone with nitric oxi [....] » Read More
Title : Electrostatic alteration of inversion frequency for a model potential of the ammonia molecule
Theodosios Geo Douvropoulos, Hellenic Naval Academy, Greece
In the current work, we analytically study the possibility of electrostatic control of a model potential corresponding to the ammonia molecule. The model is described by a one-dimensional double-well potential as far as the relative position of the nitrogen atom to the hydrogen l [....] » Read More
Title : Chemistry of nuclear fission products: Odd chemistry inside the core of the nuclear reactor
Abdul Wali Ajlouni, Umm Al-Qura University, Saudi Arabia
Nuclear fission is one of the most significant scientific discoveries that had a great impact on society because the enormous energy release that this process provides can be used for very important civilian and military applications. Although the properties of nuclear fission ar [....] » Read More
Title : Ethics, safety, and security in scientific research
Abdul Wali Ajlouni, Umm Al-Qura University, Saudi Arabia
The Corona pandemic showed a real weakness in the role of scientific research in all countries of the world, and scientific research appeared unable to protect itself and even became a threat to the nation that provides it with a safe place in which to practice its activities. Wh [....] » Read More
Title : Mercury overload in water and kidney
Raafat Abdeldayem, Mansoura University, Egypt
Objective: Chronic kidney disorder can be a prime health interest. Mercury considered as a silent threat to the environment and human life, through the world. This work purposes to access the effects of mercury overload in domestic water on the renal function. Material [....] » Read More
Title : Comparative study between liquid phase and solid phase radioimmunoassay system for determination of steroid hormones in human serum
Kh M Sallam, Hot Laboratories Center, Egypt
The aim of this lecture is to study the comparison between the separation methods that used in the radioimmunoassay system. Steroid hormones are a good model to use in this comparison, including estradiol & testosterone. The coated tube, coated beads, magnetic particles&helli [....] » Read More
Title : Study of dipolar 1.3 cycloaddition reaction by DFT method, as well as study of antibacterial activity of two isomers 1.4 and 1.5 on two therapeutic targets E. coli and Helicobacter pylori, by molecular docking
Oumayma Abdessadak, University Moulay Ismail, Morocco
A study was carried out on 1.3 dipolar cycloaddition reaction between Phenylethyne and Benzyl (diazyn-1-ium-1-yl) azanide, using the different theoretical approaches, to know precisely the reaction path, and regioselectivity of reaction, as well as the transition state. We carrie [....] » Read More
Title : Deep eutectic solvents in chemistry: Novel frontiers
Siddharth Pandey, Indian Institute of Technology Delhi, India
Over the years, there has been a growing demand of green and ecologically relevant chemical media. The incentive of incorporating green approach is derived from the urge to combat the burgeoning environmental issues that have existed so far. In the recent years, deep eutectic sol [....] » Read More
Title : Phytoremediation: An emerging circular economy tool to conserve the ecological health status of floodplain wetland, India
Saroja Kumar Barik, Forest and Climate Change, India
The present study focuses on practicing phytoremediation tool to conserve ecological health for the freshwater Ganga floodplain wetland based on circular economy concept. The bioaccumulation and translocation factors (BCF and TF, respectively) were chosen to evaluate the potentia [....] » Read More
Title : Biochemical approach to autophagy
Rumeysa Duyuran, 1Gaziantep University, Health Sciences Institute, Turkey
Autophagy is the process of self-destruction of the cell in order to clear the damaged proteins and organelles from the body and to balance energy sources in response to oxidation caused by nutrition. The mechanism of apoptosis, known as cancer cell death, is actually autophagy t [....] » Read More
Title : Synthesis, investigation, and DFT studies on Bis(alkenylruthenium) complexes with free? Rotating and rotationally restricted biaryl bridges
Obadah Subhi Abdel Rahman, King Faisal University (KFU), Saudi Arabia
A new series of biaryl-bridged dinuclear alkenylruthenium complexes with varied torsion angle ? between the planes of the phenyl rings have been prepared via regio- and stereospecific insertion of the -C≡CH bond of the corresponding terminal 4,4’-diethynylbiphenyl der [....] » Read More
Title : Phytochemical profile and antioxidant activity of essential oil from fresh and dried leaves of wedelia trilobata
Samoh Frederick Teghtegh, University of Ilorin, Nigeria
The accumulation of free radicals in the human body often results to oxidative stress. This is a condition that leads to the damage of cells alongside the process of aging, necessitating its removal from the body. Synthetic antioxidants such as butylatedhydroxytulene (BHT), butyl [....] » Read More
Title : Domino Annulations Based on Chromonyl-Norbornyl-Palladacycle Intermediate
Wen Yong Han, Zunyi Medical University, China
The close relationships between biological activity, molecular complexity, and structural diversity stimulate synthetic chemists and pharmaceutical chemists to develop novel strategies to access significant structures inspired from natural products or bioactive molecules. Chromon [....] » Read More
Title : Thin nanostructured films as food packaging
Iliana Ivanova, Sofia University Saint Kliment Ohridsk, Bulgaria
Nanoparticles included in food packaging could adsorb oxygen, produce reactive oxygen species and destroy microorganisms in food to prolong the food storage. Antimicrobial packaging is not still in the market, but copper, Zink and TiO2 are reported as promising antimicrobial mate [....] » Read More
Title : Chemical composition, antioxidant activity, cholinesterase inhibitor and in vitro insecticidal potentiality of essential oils of Lippia multiflora Moldenke and Eucalyptus globulus Labill. on the main carpophagous pests of cotton plant in Côte d'Ivoire
Koffi Christophe Kobenan, Laboratory of Plant Physiology, Turkey
In the face of the abusive and repeated use of synthetic insecticides that are harmful to human health and to the viability of the cotton production system in Côte d'Ivoire, finding alternatives becomes imperative. Thus, the objective of this study was to study the chem [....] » Read More
Title : Influence of variable compression ratio on emissions of a single cylinder- 4 stroke engine fueled with/etanol/gasoline blends
Ahmad O Hasan, Al-Hussein Bin Talal University, Jordan
Introduction: Changing engine design system and exhaust control management are costly and limited. Researcher's priority is looking for alternative fuel and clean energy resources. Alcohol fuel is the answer to this problem; methanol, ethanol, etc. are the alternative fu [....] » Read More
Title : Synthesis, characterization, DFT calculations, and in vitro anticancer studies against HeLa Cells of Zinc(II) and Cd(II) complexes of Bis(4-(ethoxycarbonyl)phenyl)dithiocarbamate and 6-ethoxybenzothiazol)dithiocarbamate ligands
Eid Abdalrazaq, Zagazig University, Jordan
Zn(II) and Cd(ll) complexes of 4-(ethoxycarbonyl)phenyldithiocarbamate, (4-etphdtc), and 6-ethoxybenzothiazol)dithiocarbamate, (6-etbedtc), ligands were synthesized and characterized by elemental analysis and spectroscopic techniques. The complexes are represented as; [Zn(4-etphd [....] » Read More
Title : Isolation of anticancer compound from arisaema jacquemontii
Habib ur Rehman, University of Azad Jammu and Kashmir, India
Arisaema jacquemontii Blume (Araceae) is found in the Northern parts of Pakistan and Kashmir (1). Though the plant is known as toxic in folklore, it finds use in traditional system of medicine to treat various ailments (2). Our investigations on the extracts of the pl [....] » Read More
Title : A theoretical approach to developing hydrogen embrittlement resistant steel
Devendra N Wsnik, Tecnimont Private Limited, India
Many industries are moving away from using fossil fuels, and hydrogen is one alternative energy source. Nowadays, storing and transporting hydrogen is difficult; storage is usually done in a liquid state at -253 °C. At ambient temperature, hydrogen is in a gaseous state, maki [....] » Read More
Title : Continuous crystallization of energetic materials using continuous oscillatory baffled crystallizer
Xiong Wei Ni, Centre for Oscillatory Baffled Reactor Advancement (COBRA), United Kingdom
Energetic materials such as explosives and solid propellants are typically manufactured in batch processes. Poor heat and mass transfers in batch vessels can lead to products produced with significant batch-to-batch variations, including inconsistent purity and wide particle size [....] » Read More
Title : Contamination of groundwater by nitrates, nitrites, ammonium and phosphate in the guelma-bouchegouf irrigated area (Northeastern Algeria)
Benhamza Moussa, Department of Hydrogeology, Algeria
The Guelma-Bouchegouf irrigated area is located in the north-east of Algeria, it extends about 80 km. It was commissioned in 1996, with an irrigable area of 9250 ha, it spreads on both banks of the Seybouse Wadi and it is subdivided into five autonomous distribution sectors [....] » Read More
Title : Surface defect-engineered CeO2-x by ultrasound treatment for superior photocatalytic H2 production and water treatment
Nabil Alzaqri, King Saud University, Saudi Arabia
Semiconductor photocatalysts with surface defects display incredible light absorption bandwidth and these defects function as highly active sites for oxidation processes by interacting with the surface band structure. Accordingly, engineering the photocatalyst with surface oxygen [....] » Read More
Title : Synthesis and antiplatelet activity of nitrated fatty acids from tomato pomace
Lyanne Rodriguez Perez, University of Talka, Chile
Cardiovascular diseases (CVDs) continue to be one of the leading causes of death worldwide. Currently, patients with pre-existing CVDs and risk factors are more likely to experience adverse outcomes associated with Coronavirus Disease 2019 (COVID-19). In the pathophysiological pr [....] » Read More
Title : Preparation and evaluation of bioplastic food packaging materials from starch and cellulose
Lidya Hailu, Debre Tabor University, Ethiopia
Disposable food packaging is a single-use plastics that can include any disposable plastic item which could be designed and use only once. In this context, this study aimed to prepare and evaluate bioplastic food packaging material from avocado seed starch and sugarcane bagasse c [....] » Read More
Title : Phytochemical screening and evaluation of antimicrobial and antioxidant activity of the extracts of the leaves of Ricinus Communis (Castor Plant)
Yonathan Dagnachew, Debre Markos University, Ethiopia
For 50 gram plant material, the percentage yields of the extracts were: methanol 4.5%, ethanol 4.0%, and petroleum ether 0.2%. It was observed that methanol and ethanol extracts contained the maximum concentrations of all the phytochemicals screened. The result was: % [....] » Read More