Scientific Program

Conference Series Ltd invites all the participants across the globe to attend 33rd Nano Congress for Future Advancements London, UK.

Day 1 :

Conference Series Nano Congress 2021 International Conference Keynote Speaker Magnus S Magnusson photo
Biography:

Magnus S. Magnusson, PhD, Emeritus Research Professor, founder, and director of the Human Behavior Laboratory (hbl.hi.is), School of Health Sciences, University of Iceland. Author of the T-system, detection algorithms and software THEMETM (PatternVision.com), initially focusing on real-time organization of behavior. Co-directed of two-year project “DNA analysis with Theme”. Keynotes in biology, neuroscience, mathematics, science of religion, proteomics, A.I., robotics and nanoscience. Associate Professor and Deputy Director 1983-1988 in the Museum of Mankind of the French National Museum of Natural History, Paris. Repeatedly, invited Professor at the University of Paris V, VIII & XIII. Now works in formal collaboration between 32 European and American universities initiated 1995 at the University Rene Descartes of Paris V, Sorbonne, based on “Magnusson’s analytical model”.

Abstract:

Statement of the Problem: This paper concerns the sudden advent of unique bio-mathematical masssocial self-similarity across >9 orders of magnitude based on T-patterns which are repeated with significant
translation symmetry in the temporal structure of neuronal, animal, and human behavior and in information molecules and texts. A unique self-similarity arising in an eyeblink after half a billion years of evolution between the mass-societies of proteins in cells and the sudden rise of human mass-societies. Methodology & Theoretical Orientation: This project began in the 1970’s much inspired by N. Tinbergen, K. Lorenz, and K. von Frisch’s research on animal and human social behavior winning the Nobel Prize in Physiology or Medicine in 1973, the first in the biology of behavior, Ethology. Insects were then the smallest animals studied and none were components of the others, no nanoscale actors nor self-similarity. Billions of years ago, the RNA world invented extra individual purely informational T-strings, DNA, and soon there was only the DNA world of DNA based mass-social proteins (cells). Billions of years later in a multicellular world, humans invented extra individual purely informational T-strings – TEXT, and now nearly all human life is TEXT-based and mass-social unique self-similarity allowing in an eye blink the advent of modern science, and technology. -- DNA has nano scale elements, but TEXT can be of any scale. Conclusion & Significance: Only mass-societies of proteins and humans rely on massively copied and distributed segments of giant T-strings for the creation of specialized citizens suggesting that culture and biology are one. The structural and functional analogies between proteins in their mass-societies and of words the neuronal mass-societies in each human citizen, analogies also existing between nanoscale viruses and “verbal viruses” (written or spoken) – sometimes working together across >9 orders of magnitude, but sometimes in opposition.

Keynote Forum

N. Baydogan

Energy Institute, Istanbul, Turkey

Keynote: The behaviou of boron carbide (b4c) powder on borax/pmma composite surface

Time : 15:30-16:00

Conference Series Nano Congress 2021 International Conference Keynote Speaker N. Baydogan photo
Biography:

N Baydogan is a Prof. Dr at Istanbul Technical University, Energy Institute, Nuclear Researches Division, Istanbul, Turkey. She studied physics in Istanbul University, Turkey. She received MSc. and PhD. from Istanbul Technical University, Nuclear Energy Institute. Her research is at the interface where ionizing radiation and materials meet: radiation source, nanomaterial, polymer nanocomposites, thin film deposition. She is best known for work on the applications of nuclear
techniques.

Abstract:

The results of this study indicated that boron carbide (B4C) powder has been cleanly penetrated to the poly(methyl methacrylate) (PMMA) with little observed deformation. B4C powder and PMMA integration was observed at the cracking surface at both od side of PMMA. Boron carbide powder was used to examine crack nucleation, propagation, and coalescence on PMMA. The rise of borax amount in PMMA caused to decrease the detection of the cracking within the composite as a function of borax amount. Two experimental configurations were used to obtain such data and each highlighted the practical difficulties associated with the measurements. This demonstrated the need for well-defined and systematic series of experiments to examine single crack behavior. Further effort is evaluated to provide quantitative interpretation of cracking and to extend the service life of PMMA with the densification.

Keynote Forum

Roger M. Leblanc

University of Miami, USA

Keynote: Versatile carbon dots: Syntheses, characterizations and applications

Time : 16:00-16:30

Conference Series Nano Congress 2021 International Conference Keynote Speaker Roger M. Leblanc photo
Biography:

Dr. Roger M. Leblanc received his B. S. in chemistry in 1964 from Université Laval, Canada, and Ph. D. in physical chemistry in1968 from the same university. He was appointed as professor in 1994 and chair of Department of Chemistry at University of Miami from 1994 to 2002 and again from 2013 to present. He was also one of the three editors of Colloids and Surfaces B: Biointerfaces from 1998 to 2013. He has published 540 scientific articles in peer-reviewed journals. As a
professor, he has supervised more than 100 M.S. and Ph.D. students.

Abstract:

Carbon dots (CDs) have recently triggered great attention in the research of material science and biomedical engineering due to their unique properties. They have been widely explored for applications
in printing, photocatalysis, bioimaging, sensing, drug delivery, and nanomedicine. In this presentation, I will firstly introduce preparations of diverse CDs. Particularly, extensive structural characterizations have been performed to build comprehensive structural models for 3 distinct CD species derived from both top-down and bottom-up approaches. Then, I will mainly focus on various applications of the CDs developed in our lab: (1), glucose-based CDs could cross the blood-brain barrier (BBB) due to the presence of glucose transporter proteins on the BBB; (2), carbon nitride dots conjugated with anti-cancer therapeutic drugs and a targeting molecule were capable of effective treatment against diffuse large B-cell lymphoma both in vitro and in vivo; (3), metforminderived CDs showed a unique nucleus targeting property; (4), CDs have constantly shown the capability to inhibit the formation of amyloid precursor protein (APP), beta-amyloid (Aβ) and Aβ fibrils. CDs are promising nanomedicine and drug nanocarriers to treat Alzheimer’s disease; (5), photocatalytic degradation of diverse water pollution models revealed a remarkably enhanced photocatalytic activity of gel-like compared with most known CD species and comparability to graphitic carbon nitride (g-C3N4). In addition, the degradation rate constant was further improved by 1.4 times by embedding g-C3N4 in G-CDs; (6), a pilot study showed a versatile nanocarrier could be assembled via the direct conjugation between distinct CDs to fulfill multitasks.

Conference Series Nano Congress 2021 International Conference Keynote Speaker Adiguzel Osman photo
Biography:

Dr Adiguzel graduated from Department of Physics, Ankara University, Turkey in 1974 and received PhD- degree from Dicle University, Diyarbakir-Turkey. He has studied at Surrey University, Guildford, UK, as a post-doctoral research scientist in 1986- 1987, and studied on shape memory alloys. He worked as research assistant, 1975-80, at Dicle University and shifted to Firat University, Elazig, Turkey in 1980. He became professor in 1996, and he has already been working as professor. He published over 60 papers in international and national journals; He joined over 120 conferences and symposia in international and national level as participant, invited speaker or keynote speaker with contributions of oral or poster. He served the program chair or conference chair/co-chair in some of these activities. In particular, he joined in last seven years (2014 - 2020) over 70 conferences as Keynote Speaker and Conference Co-Chair organized by different companies. He supervised 5 PhDtheses and 3 M.Sc- theses. Dr. Adiguzel served his directorate of Graduate School of Natural and Applied Sciences, Firat University, in 1999-2004. He received a certificate awarded to him and his experimental group in recognition of significant contribution of 2 patterns to the Powder Diffraction File – Release 2000. The ICDD (International Centre for Diffraction Data) also appreciates cooperation of his group and interest in Powder Diffraction File.

Abstract:

Shape memory effect is a peculiar property exhibited by a series alloy system in the β-phase fields and governed by successive dual thermal and stress induced martensitic transformations. Shape memory effect is initiated by cooling and stressing the material and performed on heating and cooling after these processes. Thermal induced martensitic transformation occurs on cooling along with lattice twinning in crystallographic level on cooling and ordered parent phase structures turn into the twinned martensite structures. Twinned martensite structures turn into detwinned martensite structure by means of stress induced transformation by deforming plastically in a strain limit in martensitic condition. Shape memory alloys are in the fully martensitic state below martensite finish temperature and can be easily deformed through variant reorientation/ detwinning process. Therefore, martensite is called soft phase and austenite is also called hard phase. Thermal induced martensitic transformation is lattice-distorting phase transformation and occurs with the cooperative movements of atoms by means of lattice invariant shear in <110>-type directions on {110}- type close packed planes of austenite matrix which is basal plane or stacking plane for martensite. The {110}-type close packed planes represent a certain plane family including 6 certain planes and martensitic phase occurs as 24 martensite variants. These alloys exhibit another property called superelasticity which is performed by stressing and releasing at a constant temperature in the parent β-phase region. Superelasticity exhibits classical elastic material behavior by recovering the original shape after releasing. Stressing and releasing paths are different at the stress-strain diagram and the cycling loop refers to the energy dissipation. Superelasticity is also result of the stress induced martensitic transformation and ordered parent phase
structures turn into the detwinned martensite structures. Copper based alloys exhibit this property in metastable β-phase region, which has bcc-based structures at high temperature parent phase field. Lattice twinning and invariant shears are not uniform in these alloys, and the ordered parent phase structures martensitically undergo the non-conventional complex layered structures on cooling. The long-period layered structures can be described by different unit cells as 3R, 9R or 18R depending on the stacking sequences on the close-packed planes of the ordered lattice. The closepacked planes, basal planes, exhibit high symmetry and short-range order as parent phase. The unit cell and periodicity are completed through 18 layers in direction z, in case of 18R martensite, and unit cells are not periodic in short range in direction z. In the present contribution, x-ray diffraction and transmission electron microscope studies were carried out on two copper based CuZnAl and CuAlMn alloys. These alloy samples have been heat treated for homogenization in the β-phase fields. X-ray diffraction profiles and electron diffraction patterns exhibit super lattice reflections inherited from parent phase due to the displacive character of the transformation. X-ray diffractograms taken in a long-time interval show that diffraction angles and intensities of diffraction peaks change with the aging time at room temperature; this result refers to the rearrangement of atoms in diffusive manner.
Keywords: Shape memory effect, martensitic transformation, superelasticity, lattice twinning and detwinning.

 

  • Nanotechnology in Battle Against Coronavirus, Nano Science and Technology, Material Science And Engineering, Advanced Nanomaterials, Nano Biomaterials, Pharmaceutical Nanotechnology, Graphene and its Applications, Nano Materials Synthesis and Characterisation, Medicinal Chemistry, Industrial Chemistry, Oil and Petroleum Chemistry, Polymer Chemistry, Electro Chemistry, Nuclear Chemistry
Location: Webinar

Session Introduction

Junhui Hu

Nanjing University of Aeronautics and Astronautics, China

Title: Gas identification by ultrasonically catalyzed single-sensors
Biography:

Junhui Hu received his Ph.D. Degree from Tokyo Institute of Technology, Japan, in 1997, and B. E. and M. E. degrees from Zhejiang University, China, in 1986 and 1989, respectively. Currently he is a Chang-Jiang Distinguished Professor, and the deputy director of a State Key Laboratory in Nanjing University of Aeronautics and Astronautics, China. His research interest is in ultrasonic sensors and actuators, ultrasonic manipulations, etc. He is the author and co-author of more than 300 papers, disclosed patents and books, including more than 100 SCI journal papers. He is also the sole author of monograph “Ultrasonic Micro/Nano Manipulations”.

Abstract:

Gas identification by a single sensing element is a challenging and promising technology. In this report, we demonstrate a novel gas identification strategy, which is based on a single-sensor sensor radiated by ultrasound. The identification is based on different ultrasonic catalysis effect on the steady sensing responses of an ultrasonically radiated MOS or catalytic combustible gas sensor to different gase analytes. It does not need a complicated feature extraction computation. Our experiments show that the success rate of identification can be up to 100% if strong enough ultrasound is employed. The identification process can also measure the concentration of the gas to be identified. The identification result is immune to the interference of impurity gases to some extent. The anti-interference capability can also be strengthened by increasing the ultrasonic vibration velocity.

Speaker
Biography:

Thomas Prevenslik is a retired American living in Berlin. He developed simple QED nanoscale heat transfer in Hong Kong in 2010. Having nothing to do with Feynman's QED, simple QED conserves heat by emitting EM radiation instead of changing temperature, the EM radiation standing inside the NP. For a spherical NP, simple QED creates a quantum state E = hc/2nd, where h is Planck's constant, c the velocity of light, with n and d the refractive index and diameter of the NP.

Abstract:

The CDC approach to the Covid-19 virus was to quickly develop a vaccine which even if successful in the near term would be impossible to implement for the ~8 billion people in the world, let alone unacceptable because of attendant social unrest and economic collapse. In mid-2020, a new approach for Covid-19 and other viruses called the Nanoparticle Treatment was proposed targeting
only a relatively small number of patients who tested positive for the virus. Messenger mRNA and antigens of the virus having unknown side effects were excluded. Only injections of biodegradable lipid nanoparticles (NPs) in saline are used with the antigen being the actual live Covid-19 virus in the tested positive patient that is inactivated by the UV radiation emitted from the NPs. The UV is produced by the simple QED theory based on the Planck law which denies atoms in NPs the heat capacity to conserve heat by an increase in temperature, and instead heat from the surroundings is conserved by creating EM radiation at a wavelength depending on the NP size, e.g., 80 nm lipid NPs emit UVC (254 nm) radiation. In the manner of an in vivo vaccine, the NP treatment uses UVC to inactivate the live Covid-19 virus in the patient to produce the inactivated virus that acts as the antigen to elicit immunity to current and future Covid-19 infections. By controlling the NP dose, the UVC is held to low levels of collateral DNA damage allowing recovery by DNA repair systems that evolved during the UV intense primitive Earth. Today, the Pfizer-BioNTech vaccine and others having over 90% efficacy are found to lose immunity prompting re-vaccinations. However, the NP treatment, especially in pill form to avoid injections, is suggested as sufficent and economic to be administered as many times necessary to all Covid-19 patients on Earth tested positive to extend immunity as envisoned in mid-2020.

Valentyn. Nastasenko

Kherson state maritime academy, Ukraine

Title: A new way to fight sars-cov-19
Speaker
Biography:

Valentyn Nastasenko, Kherson State Maritime Academy Ukraine, faculties’ Engineering and electronics, the department of transport technologies and mechanical engineering. Dr. Technical sciences, Professor. A sphere of scientific interests includes quantum physics, the theory of gravitation, fundamentals of the material world and the birth of the Universe, the author of more than 70 scientific works in these spheres.

Abstract:

Currently, there is no more important problem for humanity than the fight against SARS-CoV-19 (COVID-19). Information of researchers from the Massachusetts Institute of Technology that the virus envelope quickly degrades at frequencies of 25 and 50 MHz, both in water and air is appeared. However, little attention has been paid to this message. The purpose of this work is to eliminate this drawback and draw attention to a new way of fighting viruses and bacteria by their resonant destruction. This path was founded back in the XX century Alexander Gurvich (Russia) and Royal Rife (USA) and implemented in a number of already invented electronic devices. Royal Rife used this path to treat cancer patients, but in a number of cases he received a negative result, which forced them to reject this path (not without the influence of pharmaceutical companies, due to the threat of losing the market for expensive drugs). Given that COVID-19 is rapidly mutating, it requires the production of billions of doses of new types of vaccines, which is carried out "in pursuit" of mutations. This path requires constant new costs of intellectual, material, technical and economic resources, which are diverted from other areas of improving human life and activities. In addition, during the "in pursuit" period, there are no other more effective methods of combating COVID-19 than isolation, which has a detrimental effect on the economy countries and people's living conditions. Since these problems are more important than other immediate benefits, therefore, it is necessary to forget about past failures and direct all efforts to developing a new path - the resonant destruction of viruses, as a universal disinfectant for all types of viruses. This does not reject the development of new vaccines and traditional methods of treatment; they can be carried out in parallel. The developed individual electronic devices can be made in the form of medallions or additional microchips of smartphones and mobile phones, which are available to all inhabitants of the Earth. If the same resources that were used to develop vaccines are involved in solving this problem, success is possible within a year, and further costs will be minimal.

Speaker
Biography:

Maria Vorobyeva is junior researcher of International Intergovernmental Organization Joint Institute for Nuclear Research. In the last three years, she has been very actively involved in lipid-protein interactions in model lipid membranes. Whereas the addition of various molecules to the membrane can change its physical properties and alter its structure, that in turn may affect its functionality. It is thus crucial to know the origin of these changes, and understand the intermolecular interactions responsible for embedding the various additives to the membrane. Of course, the influence of membrane functionality can go in both directions.

Abstract:

We have studied the impact of cholesterol and/or melatonin on the dynamical properties of phospholipid bilayers made of dipalmitoylphosphatidylpholine (DPPC) by Raman spectroscopy and complemented the experimental results with MD simulation. Raman spectroscopy is known to be a sensitive instrument for probing conformational changes manifested in the Raman spectra of biological samples under certain conditions. It is well known that cholesterol has a condensing effect, namely it is capable of ordering the hydrocarbon chains of lipids, while melatonin is supposed to be a fluidizing one. The analysis of the obtained Raman spectra was done in the fingerprint region of 1030-1150 cm-1 as it is known to be sensitive to trans/gauche conformations. The normalized Raman spectra in this region with the three dominant Raman bands for our system are shown in Figure 1a and 1b for three different concentrations of the components. We evaluated spectral weights (i.e.,
integrated areas) of three of these lines for estimating the order/disorder dynamics in our systems. In particular, we calculated the ratio of spectral weights at 1127 cm-1 to that at 1096 cm-1 (1127/1096) for evaluating the ordering effect of cholesterol, while the ratio of spectral weights at 1062 cm-1 to that at 1096 cm-1 (1062/1096) for evaluating the disordering effect of melatonin. As a result of our studies, it was revealed the effect of the cholesterol addition to the DPPC bilayers is modulated clearly by the additional presence of melatonin. This can be seen in the declining steepness of the trans/gauche ratio changes as a function of cholesterol concentration in the case of DPPC bilayers loaded with increasing amount of melatonin. Thus, the vibrational dynamics of lipid chains appears to be affected directly and similarly by both cholesterol and melatonin. The cholesterol clearly increases the order of lipid chains, and melatonin introduces disorder.

 

John McClellan Marshall

Fourteenth Judicial District of Texas, USA

Title: Nanotechnology and the law: 2021
Speaker
Biography:

Abstract:

The history of technology in the past three hundred years has been one of major leaps forward, compared with the two thousand years or so that preceded them. In the 18th Century, the Agricultural Revolution changed the nature of farming throughout the world. Formerly, the "three field" system had been a dominant feature of agriculture, with the result that productivity was only two-thirds of what it might have been. The addition of fertilizers, irrigation, and upgraded equipment, such as steel plows, for everyday use meant that the "three field" system could be abandoned. It was, and it was replaced by a system that is much more recognizable in the modern day. The Agricultural Revolution, once production exceeded immediate consumption levels, allowed for society to begin to consider other aspects of the economy. The obvious choice was to look at industrial diversification beyond the "cottage industry" model. This became the Industrial Revolution of the 19th Century, though it actually had its roots in the 18th. When grist mills with wind and power looms with water power came into general use at that time, the stage was set for the Industrial Revolution to burst forth in the next century. Of course, it was not long before wind and water were replaced by the steam engine as a source of power. Once they became mobile for boats and railroads, steam engines rapidly dominated the ability of society to adapt to a wide range of environments that it could not have in earlier times. At the same time, industries such as steel, coal, and, later, oil supported this diversity well into the 20th Century. Ironically, it took two world wars to foster a shift from the "hard" Industrial Revolution to what might be termed the "soft" Industrial Revolution characterized by computers and circuit boards.

Speaker
Biography:

Nabeel does research in Applied Mathematics, Solid State Physics, and Nanotechnology, A specialty is 'Electrospinning' Nabeel teacher of physics in Gifted Students School in Anbar, Iraq. He is currently PhD student in Institute of Nano-Optoelectronics Research and Technology (iNOR)-Malaysia.

Abstract:

The Human is the most important creature in this great universe. This great human organs of the body and the cells, it is threatened the existence of diseases that afflict him, and we know for sure that this great body the ability toresist most diseases. It is known that some diseases triumph over this great body and an example of this is cancer, so in many cases their lives end of many humans because of the disease. My study today is a simple report and a call to all researchers to turn to the important thing that is the intelligence of human body cells, which I believe to tell us of any damage that tries to harm this body. The body that tells us when it needs to water by thirst state, moreover, why do we choose a specific type of eating or a specific fruit can tell us about cancer early, all of this is a translation of what the body needs. So we need to listen and translate what are cells need to understand much of what happens to the body, and also very early detection of most cancers that occur to the body.

Speaker
Biography:

NOUJ Nisrine and the lab team used their expertise to solve a big problem in the region of Agadir, Morocco. Treat environmentally harmful leachate using a simple and inexpensive method. A combination of an abundant biocoagulant and infiltration-percolation on sand shows promising results in terms of reducing pollutants. This approach could easily be used and save the environment.

Abstract:

In Morocco, the increasing production of municipal solid waste (MSW) and its by-products, in particular leachate, is a major concern. MSW leachate is a very complex effluent, loaded with organic and inorganic pollutants; it poses a serious threat to human health and the environment. In Agadir city, the leachate generated is stored in seven tanks in the Tamellast land-fill. The daily flow of this effluent accelerates the saturation of the storage tanks. Overflowing leachate presents a potential environmental hazard, and proper treatment of the leachate has inevitably become a requirement. Therefore, this study aims to find a simple, inexpensive and efficient leachate treatment system. Two techniques using local natural materials have been combined to achieve significant results: coagulation and infiltration-percolation. Cactus powder and cactus mucilage have been selected to treat leachate by coagulation and titaniferous sand as a filter material for the infiltration-percolation process. Laboratory scale experiments show very interesting results. Due to its effectiveness at a dose of 20 mg / l at pH 11, the effluent treated with cactus mucilage was chosen to undergo secondary treatment (86.54% for turbidity and 14.60% for electrical conductivity). The elimination of turbidity and electrical conductivity achieved after infiltration-percolation is, respectively, 97% and 39%.

Biography:

Abstract:

The interaction of the CO with Pd cluster is still poorly characterized in both theoretical and experimental studies. In this study Pd cluster is chosen because it presents a great ability to adsorb and store molecule such as hydrogen, oxygen as a good catalyst and is used to speed up hydrogenation and dehydrogenation reaction. Pd nowadays is more and more used in electrical applications; such as: wide screen, television, computer and mobile phone. CO was found to be highly toxic for both humans and animals. And the atmosphere receives an enormous amount of CO per year (1.09 billion tons in 2000). In this way CO dissociation is an essential step in the minimization of this pollutant.
The structure of the clusters was obtained by the thermal quenching techniques. The potential energy of the CO molecules was obtained by an embedded–atom potential also the reaction between the CO and Pd is modeled by LEPS (London-Eyring-Polanyi-Sato) function. The chemisorption probability has calculated as a function of impact parameters, collision energies, and rovibrational initial state. The dissociative probability of the CO was also studied. As a result of this study the molecules that reach the cluster with high translation energy (for example0.8eV) will have greater dissociation probability when interacting with atoms near the center of mass of the cluster i.e. at impact parameter b=0 .This probability decrease successively with the increase in the impact parameter till it reach its minimum value at 4.25 The molecule interact at lower translation energy (as example0.01eV) have the least dissociation probability, but they dissociate at large impact parameter than the former one which clearly sign for the area of indirect dissociation.

Biography:

Linda Jeeva Kumari Henry is a doctoral research scholar at the Department of Pharmaceutical Technology, Centre for Excellence in Nanobio Translational Research (CENTRE), University College of Engineering (UCE), Anna University, Tiruchirappalli, Tamil Nadu, India. Her specializations include pulmonary pharmacology, drug delivery, cell culture and molecular biology. She has worked as a junior research fellow in the Government of India sponsored National Facility for Drug Development, and has handled the responsibility of organizing cell culture facility, laboratory of pulmonary research. Her research focuses on developing targeted drug delivery system for the management of asthma. She has actively participated and presented papers in various national and international conferences. She has published eleven research articles in peer-reviewed journals with a cumulative impact factor of 32.459. Her passion is to explore the potentials offered by nanotechnology in the arena of translational medicine that could benefit the society, thereby improving the quality of human life.

Abstract:

Statement of the Problem: Asthma is a chronic inflammatory lung disease which is characterized by airway hyperresponsiveness, airway inflammation and goblet cell hyperplasia. It affects about 339 million people globally with an estimation of an additional 100 million asthmatics by 2025. Peroxisome proliferator-activated receptor gamma (PPARγ) is a nuclear hormone receptor that acts as a therapeutic target for asthma. PPARγ agonists are shown to combat inflammatory responses in asthma pathogenesis. Synthetic PPARγ agonists like thiazolidinediones impose various adverse effects, hence we opted for a phytocompound over conventional drugs. Fisetin, a PPARγ agonist is a highly hydrophobic flavonoid present in many fruits and vegetables that possesses anti-asthmatic property. However, poor aqueous solubility limits its pharmacological activity. Nanoparticle-based drug delivery systems are developed to target alveolar macrophages associated with pulmonary inflammation. Polymeric nanoparticles are biocompatible, safe and stable with sustained release property for better therapeutic effect. Therefore, the purpose of the study is to develop fisetin-loaded polymeric nanoparticles (Fis-Nps) and explore the anti-asthmatic effect of encapsulated fisetin over free fisetin via PPARγ-dependent pathway. Methodology & Theoretical Orientation: Fis-Nps were prepared by nanoencapsulation technique. Physiochemical characterizations, in vitro drug release and hemocompatibility studies were performed. In vivo anti-asthmatic studies of aerosolized Fis-Nps in ovalbumin-induced BALB/c mice model via inhalation route of administration were performed. PPARγ-mediated anti-asthmatic action of Fis-Nps was elucidated by protein expression studies (western blot). Findings: Inhalation administration of Fis-Nps remarkably ameliorated airway hyperresponsiveness, inflammatory cells, pro-inflammatory cytokines, nitric oxide, reactive oxygen
species, eosinophil peroxidases and serum IgE, thereby attenuating the disease progression in asthma via up-regulation of PPARγ. Conclusion & Significance: Nanoencapsulated Fis-Nps exhibits better anti-asthmatic activity over free fisetin wherein PPARγ plays a master regulator. Thus, the pharmacological potential of fisetin is significantly enhanced by nanoencapsulation and the targeted delivery of aerosolized nanoformulation leads to an effective asthma control strategy.

Biography:

Abstract:

Toxicity of lead remains a topical issue even in the developed economies of the world. The challenges posed by this metal are informed by its near ubiquitous presence in both domestic and industrial appliances. Among the several organs vulnerable to the toxicity of this metal is the kidney especially in occupationally predisposed adults where due to lack of very sensitive indicators
of its toxicity, the pathology often present late as end-stage-renal disease (ESRD) by which time the damage to the kidney is irreversible. This presentation is to chronicle the chemistry of this metal and biochemistry of its disease especially in the vulnerable group with a view to highlighting the synergy between basic sciences and medicine and the need to explore this in translational research in the quest for early and sensitive bioindicator of aetiopathology of exposure to the metal, lead.