A series of original plasma-chemical systems with plasma sources based on rotating gliding discharge and designed for the reforming of hydrocarbons into syngas and synthesis of hydrocarbons will be presented. The principal design of these systems stems from considering the negati [....] » Read More
Scanning Probe Microscopy is a nanotechnology tool that allows imaging at the nanoscale. In food chemistry, molecules such as gelatin, casein, proteins as well as larger structures like polysaccharide gels, and starch are of paramount importance. In this talk a short review of th [....] » Read More
The challenge and obstacle in chemotherapeutic strategy to cancer treatment consists mainly in the inadequate drug concentration at the tumor site in the body. Radiotherapy is the most common modality for cancer treatment but undesirable drug toxicity to normal tissues and [....] » Read More
In-situ interfacial polymerization (ISIP) technique is developed to prepare monovalent anion-permselective membranes (MAPMs). The introduction of multi-hydroxyl (-OH) and cationic groups in the base membrane provide suitable routes towards the monovalent anion transport. Only tri [....] » Read More
Recently, there has been a lot of activity in the development of fluorescent self-assembled aggregates due to their potential applications in nanostructure templating, light harvesting and energy transfer, chiral amplification and tuning, hole transportation, drug delivery, nanod [....] » Read More
Study of non-covalent interactions is the main piller of supramolecular chemistry. Mostly it plays an important role in controlling the physical property as well as structural topology. In order to explore that role a series of four mononuclear Schiff-base complexes, namely, [Z [....] » Read More
The multi non-metal doping of TiO2 finds promising for the design and development of solar light harvesting photocatalyst and also for overcoming the drawbacks associated with convetional metal ion substitution. In particular, tridoping of C-N-S into TiO2 has garne [....] » 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
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 reduction of suitably substituted organic nitro compounds by CO, catalyzed by palladium-complexes, is a valuable method for the preparation of a variety of N-heterocyclic compounds. Despite the high efficiency of many of these reactions, the use of pressurized CO is a drawbac [....] » Read More
Metal phosphates are an important group of materials with established technological and industrial applications that are still attracting special scientific interest, owing to their outstanding physical and chemical properties. Most of the conducted research regarding metal phosp [....] » Read More
In the field of occupational health and safety, the measurement of hazardous substances is one of the cornerstones in the prevention of occupational diseases. Aldehydes are found in many workplaces mainly due to their use as disinfection agents and for the fixation of biological [....] » Read More
Medicinal and aromatic plant (MAPs) extracts are attracting much attention because of their interesting phytochemical composition, leading to the development of new pharmacological and cosmetic drugs. Extraction represents a critical step in the itinerary of phytochemical discove [....] » Read More
Recent studies have reported the importance of supports in heterogeneous catalysis, since their role is not limited to act as carriers for metal particles. There is evidence that support’s nature, crystalline phase and physicochemical properties could enhance catalytic perf [....] » Read More
The ground state properties of the frustrated two-leg spin ladder model for nanostructured magnetic materials on the base of transition metal complexes have been studied. Using perturbation theory and numerical methods we found the possibility of quantum phase transitions, mediat [....] » Read More
Photocatalysis is considered as one of the potential advanced oxidation processes for the de-pollution of wastewater. In particular, dye-contaminated wastewater is not only polluting the environment but causes serious health risks to both human and aquatic biota. This necessitate [....] » Read More
Title : Molecular modeling of Imidazoquinazolinedione Derivatives
Karol Heclik, Rzeszow University of Technology, Poland
Imidazoquinazoline derivatives have biological activities in different aspects. Therefore, they are applied as active substances in drug production. Moreover, their physical properties, for example, high decomposition temperature ~400 degree of Celsius make them useful in t [....] » Read More
Title : Shape reversibility and thermomechanical reactions in shape memory alloys
Osman Adiguzel, Firat University, Turkey
Shape memory effect is a peculiar property exhibited by certain alloy systems, called shape memory alloys. These alloys have dual characteristics called thermoelasticity and superelasticity. Shape memory effect is initiated thermomechanical processes in the bulk level, on cooling [....] » Read More
Title : Beating COVID with nano chemistry
Thomas J Webster, Hebei University of Technology, China
COVID-19 has stopped our normal way of life across all parts of the world. This presentation will cover how nano materials are being used to help prevent, detect, and treat COVID. Specifically, it will cover how self-assembled materials can be formulated to bind to regions of SAR [....] » Read More
Title : Controlled Fabrication and Morphological Transformation of Polymeric Bowl-shaped Nanoparticles
Hui Sun, Ningxia University, China
Bowl-shaped nanoparticles are asymmetric hollow structures with a single large opening on the surface. As a classical kind of asymmetric nanoparticle, bowl-shaped nanoparticles have shown advantages in loading and delivery of large sized cargoes, catalysis and energy storage. How [....] » Read More
Title : Synthesis of Gemcitabine Phosphotriester Hybrids and Their Initial in Vitro Evoluation
Roksana Trznadel, Adam Mickiewicz University, Poland
A number of important biological properties is assigned to the analogs of nitrogen bases, pyrimidine and purine nucleosides, and nucleotides. These are mainly antitumor and antiviral activities, but also antibacterial, antiparasitic, antifungal, and antimalarial. Currently, there [....] » Read More
Title : Cocrystal Formation of Natural Flavonoids Synthesis, Physico Chemical Assessment, Antioxidant and Spectroscopic Studies
Iwona Budziak Wieczorek, University of Life Science in Lublin, Poland
In recent years, special interest in the prevention and treatment of many civilization diseases is caused by polyphenol compounds that are widespread in the plant world. Dietary flavonoids exert various biological activities like cardioprotective, chemopreventive, and neuroprotec [....] » Read More
Title : Heat capacities Cp(T) of the isostructural sphalerite phases as a single system in solid state
Valery Pierre Vassiliev, Lomonosov Moscow State University, Russian Federation
This work proposes a new vision on the description of heat capacities of diamond-like compounds with sphalerite structure. The 4th group of diamond-like elements consists of, in addition to diamond, silicon, germanium, alpha tin, and diamond-like lead. Flerovium (114Fl) closes th [....] » Read More
Title : Technical aspects of Areca fibres
N Gokarneshan, Hindustan Institute of Technology and Science, India
Betel nut is one of the important fruits cultivated in tropical parts of the world. It generates a huge quantity of husk, which is a source of areca fiber. Both fine and coarse fibers are available in the husk. Different properties of fine areca fiber have been analyzed for quali [....] » Read More
Title : A novel continuous enzyme coupled colorimetric assay for phospholipase A2 and its application in the determination of catalytic activity of oil body associated oleosin protein
Sweta Kumari , Indian Agricultural Research Institute, India
The present work reports a novel, continuous, specific and colorimetric coupled method for the assay of phospholipase A2 (PLA2), which involves use of acyl-CoA synthetase (ACS) as coupling enzyme and Dilinoleoyl Phosphatidylcholine (DLPC) as substrate. This method is based on the [....] » Read More
Title : Effect of chemical properties on liposomal encapsulation of radiopharmaceutical tracers
Anfal M Alkandari, Mansoura university-Egypt sponsored by ministry of health-Kuwait, Kuwait
Drug loading in liposomes can be performed either passively (during liposome formation) or actively (after liposome formation). Thus, the trapping efficiency of hydrophilic drugs in passive liposome encapsulation is relatively low (around 30%) due to the limited volume of the enc [....] » Read More
Title : The nanoscale effects of ligand binding on the electrical properties of olfactory receptors
Anna Lagunas, University of Barcelona, Spain
Olfactory receptors (ORs) comprise the largest multigene family in the vertebrates. They belong to the class A (rhodopsin-like) family of G protein-coupled receptors (GPCRs), which are the most abundant membrane proteins, having widespread, significant roles in signal transductio [....] » Read More
Title : Dimensionality of MnO2 cathodes as a key factor governing kinetics in Alumninium-ion batteries
Paloma Almodovar, Albufera Energy Storage S.L, Spain
Along with the non-stopping technological expansion, modern societies are in need of a constant energetic supply. Equipment with a stationary and non-stationary objective must have battery or capacitor devices adapted to its requirements, where energy storage has to be efficient. [....] » Read More
Title : Cell-based screening for anti-inflammatory drugs with the premise of innate immune tolerance induction
Domokos Gero, Semmelweis University Medical School, Hungary
Inflammation is a poorly regulated reaction to pathogens or tissue injury that often requires medical therapy to prevent further tissue damage and to reduce the associated symptoms. Excessive inflammatory response may be triggered by evolutionarily conserved molecular determinant [....] » Read More
Title : Boudouard reaction under graphene cover
Luca Vattuone, University of Genoa, Italy
Ni is known to be a catalyst for the Boudouad reaction CO+CO ® CO2 + C This reaction is favoured by high pressure and it thus escaped so far direct investigation under operando conditions. We report here about a Near Ambient Pressure XPS study performed at Soleil [....] » Read More
Title : N methyl N nitrosourea as a carcinogenic agent what is its potential
Ana I Faustino, Center for the Research and Technology of Agro-environmental and Biological Sciences, Portugal
Animal models are essential for biomedical research. Using them, the researchers are able to better understand the diseases, and search for more effective prophylactic and therapeutic approaches. Rodents are among the most frequently used species for scientific purposes. Chemical [....] » Read More
Title : A-ring modification on MMV008138: Effects on antimalarial potency and microsomal stability, Implications for mode of inhibition
Haibo Li, Virginia Tech, United States
Tetrahydro-β-carboline 1 (MMV008138)1,2 controls growth of blood-stage Plasmodium falciparum by inhibiting a critical metabolic enzyme (IspD).3-5 It has a very specific D-ring structure-activity relationship, requiring halogen-disubstitution at the 2?- and 4?-positions.2,5 I [....] » Read More
Title : Hydration layer of few molecules controls lateral diffusion of lipids in biomembranes
Madhurima Chattopadhyay, Poznan University of Technology, Poland
The cellular membranes are chemically highly heterogeneous structures, whose components work in a concerted manner, facilitating a broad range of important cell functions. The organization of the cell membrane involves not only assembly into microstructure, but also intricate i [....] » Read More
Title : Improving the Reliability Design of Mechanical Systems such as Refrigerator
Seongwoo Woo, Addis Ababa Science & Technology University, Ethiopia
To enhance the lifetime of mechanical system such as automobile, new reliability methodology – parametric Accelerated Life Testing (ALT) – suggests to produce the reliability quantitative (RQ) specifications—mission cycle—for identifying the design defects [....] » Read More
Title : Synthesis, characterization and in vitro acaricidal activity of new [1,2,4]triazolo[4,3-b][1,2,4,6]thiatriazine-1,1-dioxides against cattle tick : Hyalomma scupense
Azhar Hajri, Higher Institute of Biotechnology of Beja, University of Jendouba , Tunisia
A new series of [1,2,4]triazolo[4,3-b][1,2,4,6]thiatriazine-1,1-dioxides (2a-f) were, synthesized, characterized and evaluated for their acaricidal activity against larvae and adults of H. scupense. The synthesis of triazolothiatriazine-1,1-dioxides (2a-f) was carried out. [....] » Read More
Title : U determination in wine and honey from Bulgaria
Irina Karadjova, University of Sofia “St. Kliment Ohridski”, Bulgaria
Uranium is a toxic metal with low radioactivity which is ubiquitous in the environment. As a result of its natural occurrence, it can be found at different concentrations and in the form of different compounds in rocks, water, soil and air. Additionally, uranium can also enter th [....] » Read More
Title : Determination of SbIII and SbV in water samples based on highly selective solid-phase extraction with polyvinyl imidazole
Tanya Yordanova, Sofia University St. Kliment Ohridski, Bulgaria
Antimony is a chemical element that occurs in the environment as a result of natural and anthropogenic processes and its biogeochemical cycle is nowadays sufficiently characterized. Toxicological profiles and bioaccumulative properties of particular Sb species are well known &nda [....] » Read More
Title : Studies on the effect of functional monomers and chelating ligands on the properties of Fe II ion imprinted polymers designed for iron speciation
Ivanka Dakova, University of Sofia “St. Kliment Ohridski”, Bulgaria
Iron is one of the most essential, chemical elements in an aquatic environment due to its role of catalyzer in phytoplankton photosynthesis and its involvement in metabolic processes – nitrate reduction, nitrogen fixation and respiration. Total dissolved Fe concentrations i [....] » Read More
Title : Direct and selective quantification of Cr VI in waste waters with raffinose capped silver nanoparticles as sensitive optical sensor
Penka Vasileva, University of Sofia “St. Kliment Ohridski”, Bulgaria
In the present study, a new method for direct and selective determination of Cr(VI) in the presence of Cr(III) in water samples is presented using raffinose capped silver nanoparticles (Ag/Raff NPs). The nanoparticles used were obtained by one-step, one-phase “green” [....] » Read More
Title : Quinoxaline antiviral motif between history and future: Urgent Need for New Antiviral
Heba Sayed Ahmed Ali Elzahabi, Al AZHAR University, Egypt
Struggling for the development of antiviral drug is a pivotal issue because of many reasons, e.g., existence of the chronic viral infections, e.g., hepatitis C virus (HCV), the emergence of new viral infections, e.g., corona virus and the development of resistance to currently us [....] » Read More