Antibacterial Activity of Graphite, Graphite Oxide, Graphene Oxide, and Reduced Graphene Oxide: Membrane and Oxidative Stress.

Remediation of wastewater using various nano- materials. In the present era of scarcity of water resources, effective treatment of wastewater is a major prerequisite for growing economy. It is critical to develop and implement advanced wastewater treatment technologies with high efficiency and low capital requirement. Among various treatments, recent advanced processes in nano- material sciences have been attracting the attention of scientists.

However, limited collective knowledge is available in this context. The present manuscript reviews the potential developments in nanotechnology with respect to wastewater treatment. The article reviewed and discussed utilization of various classes of nano- materials for wastewater treatment processes. This includes four main classes; First, nano- adsorbents such as activated carbon, carbon nanotubes, grapheme, manganese oxide, zinc oxide, titanium oxide, magnesium oxide and ferric oxides that are usually applied for removal of heavy metals from the wastewater. Second, nano- catalysts such as photocatalyst, electrocatalyst, Fenton based catalyst, and chemical oxidant have been shown the potential for removing both organic and inorganic contaminants. Third, nano- membranes have been used for effective removal of dyes, heavy metals and foulants using carbon nanotube membranes, electrospun nanofibers and hybrid nano- membranes. Finally, the integration of nanotechnology with biological processes such as algal membrane bioreactor, anaerobic digestion and microbial fuel cell is discussed with respect to its potential for wastewater purification.

Scientific Program . Also, published over 2. Clark (Washington U.), H. Feshbach (MIT), E. H. Lieb (Princeton), W. C. Stwalley (UConn) and V.

V. Tolmachev (Moscow). Supervised 4. 5 thesis (1. Co- founder in S. Como Medir La Calidad De Un Software De Facturacion.

It thus generalizes (and, indeed, includes as a special case) the T. D. Lee and Friedberg 1. BEC theory of cuprate superconductors where, however, no explicit mention of two- hole pairs is even ever made. Besides also subsuming both BCS and BEC theories precisely (via the well- known BCS- Bose crossover picture, also subsumed) the GBEC formalism leads to several- order- of- magnitude enhancements in the critical superconducting temperature Tc.

1. Current Issue RES J PHARM BIOL CHEM SCI Volume 8, Issue 1, 2017 (January - February) Thermochemistry of Heteroatomic Compounds: The Calculation of C-H and C-C Bonds.
2. Structural and Biological Activity Study of (E)-N’-(5-Chloro-2-Hydroxybenzylidene)Nicotinohydrazide)
3. Vol 6 suppl 2, 2014 : review articles : applications of implantable medical sensors for heart faliure: a review: 1-5: murugesh shivashankar, venkata ramanathan.

He is the most successful motivational self-help education system trainer of our time. He is the author of 19 bestselling books including his mega best sellers: The. Materials Science and Engineering Mining and Metallurgy Nano sciences and nanotechnologies Nanomaterials and Nanocomposites.

Anticancer Activity Of Silver Nano Particles Antimicrobial Activity

Since 2. 00. 7 she is head of the department « Environmental Technology » at the Competence Center of Material Moisture (CMM). CMM is an institution of the Karlsruhe Institute of Technology, which is working on moisture induced processes of materials. Abstract: Phosphorus plays a significant role within biochemical processes.

Since no other element can substitute phosphorus,i it is an essential nutrient for all live formsii. Therefore, phosphorus is a major component of fertilizers. Phosphorus is mainly obtained from mined rock phosphate in igneous and sedimentary depositsiv. Depleting these deposits in order to meet the increasing demand of fertilizers due to increasing global population will lead to a phosphorus scarcity within the next 8. Therefore, numerous procedures have been invented in order to recover phosphorus from sewage. One of these procedures is the P- Ro. C- technology (P- recovery by crystallization) which was developed and patented by the Karlsruhe Institute of Technology (KIT).

The P- Ro. C- procedure is an admitted method, which proved its functionality in several semi- technical experiments and two pilot plants at two WWTP. In P- Ro. C- technology, P- recovery occurs in one singular step without the addition of chemicals except for the reactive substratexi, i. Both occurrences inhibit P- Ro. C- procedure. Furthermore, the present study revealed P- Ro. C- process as a whole. At the beginning, dissolution processes are taking place, which is attended by increasing p.

H value as well as increasing silicium concentration in the effluent. The release of OH- anions are necessary to form hydroxyapatite. The processes within and onto the CSH grains are properly proofed by increasing SSA, XRD and ESEM recordings. Giovanni Maizza. Politecnico di Torino, Italy. Title: Contact Multiphysics in Spark Plasma Sintering: a New Science to Develop Advanced Materials by Design. Biography: Professor Giovanni Maizza (M.

S. His main expertise lies in the. His research also covers the. He has published more than 8. International workshops on processing, nanomaterials. IAA conference sessions on materials processing under high. He serves as a reviewer to several International journals in the fields of.

Abstract: Multiphysics contacts in SPS systems are special interfaces between two conducting surfaces. They can be of two types, namely. The latter are found between the tooling. If the contacting surfaces are assumed. Holm’s. law) on the electrical resistivity of the contacting materials and the radius of the contact area (constriction. The applied external pressure is the primary factor controlling the complex role of contact.

SPS. The lower the imposed pressure, the higher will be both the electric contact. The latter promotes bonding and densification between. However, pressure must be tuned with care.

Too low pressure values may cause contact. Besides, high contact temperatures are responsible of marked local stressstrain. Therefore, to properly. SPS process and microstructure evolution during sintering, an adequate understanding of the.

Experiments employ ultrafast. SPS phenomena. during an intermediate stage of sintering. The Ni- alloy particles are used for aiding track of contact.

WC. particles. Computer modeling is developed and examined at three different scales of contact, namely. It is found that. SPS phenomena but also to fabricate. Taurino Rosa. Universit. Taurino Rosa took his Degree in Engineering of Materials in 2. Development and Characterization of perfluoropolyether hybrids coatings for glass substrates”.

In 2. 00. 8 took the Ph. D in Nanotechnology at the University of Perugia doing research on the development of Organic- Inorganic hybrid materials by sol- gel process. Her activity is focused on different aspects of the material and environmental science, with particular relief on the valorization of waste in material engineering (new materials and new technologies). She is co- author of more than 2.

Congresses. Abstract: PVC is one of the most commonly used synthetic polymers in biomedical applications, especially as a catheter material for the circulatory system . However, microbial colonization of medical device surfaces and the subsequent biofilm formation represents one of the most serious issues in healthcare- associated infection .

For this reason, during the last decade, there was an increasing interest in developing PVC- based materials with self- sterilizing and antibacterial properties. A great effort was thus turned to find natural antibacterial molecules or materials that could be easily incorporated in the polymeric matrix by the common techniques. Natural polymer such as chitosan offers real potential due to its physico- chemical properties, short time biodegradability, biocompatibility with human tissues, antimicrobial and antifungal activities, and non- toxicity. Total Video Converter Crack Onhax Photoshop. Chitosan exhibits high antimicrobial activity against pathogenic and spoilage micro- organisms, including fungi, and both Gram- positive and Gram- negative bacteria. Subsequently, mechanical, thermal, structural and antibacterial properties were examined. The storage modulus, and loss modulus increased with addition of chitosan, confirming a good interaction chitosan- PVC in agreement with the results of tensile testing, morphology study and FT- IR. Infact, no debonding was observed between chitosan particles and PVC matrix, as evident in the SEM of the fractured surfaces.

Moreover, the composites showed a good antimicrobial activity inhibiting, in particular, the growth of S. Considering the obtained preliminary results chitosan seems to be highly promising as filler for PVC- based composites prepared by thermo- mechanical process that could be useful to avoid the formation of biofilm on plastic material. Such a kind of materials are potential cementitious materials used for quick repair and reinforcement of structures due to their outstanding properties such as fast setting and hardening, high strength with low permeability, good volume stability and durability.

Thereinto, setting and hardening time correspond to the hydration process of MPCs, which are of great importance to their workability. Therefore, it is of crucial significance to study the hydration process of MPC. In addition, the hydration process of the MPCs maybe affected by many factors, especially by their composition. The results show that MPC sets rapidly with less than 8% of borax, which is unfavorable to the construction of MPC. Adding more than 8% of borax results in a secondary hydration for MPC, and can be divided into five processes, namely, preinduction period, induction period, acceleration period, deceleration period and stable period, which are analogous to those of ordinary Portland cements. In addition, induction period and the subsequent periods curves shift to the right with increased borax content, while rising the addition of M/P(magnesia to phosphate ratio by molar) results in the invert trend. With the elevated M/P from 3/1 to 4/1, the heat flow increases significantly but varies slightly in the range of 5/1 to 6/1.

The effect of M/P and borax on the hydration mechanism mainly depends on the relative magnesia and borax amount by weight. Hence, adding proper addition of magnesia and borax can contribute to improve the workability of the MPC and thus better construction quality.