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O Box 236, Tororo, Uganda 4Department of Chemistry, Dada Patil College Karjat, Savitribai Phule Pune University, Karjat 414402, India arbsjunior@gmail.com Keywords: PLA, Composite, Films, Acetate, MCC Abstract.
Structure and properties of hydroxyapatite/hydroxyethyl cellulose acetate composite films.

DMAc was purified by distillation and stored over 4Å molecular sieves. 3-(2-Aminoethyl)aminopropyl) trimethoxysilane (KH792 (≥97%)) was purchased from Nanjing Shuguang Chemistry plant.
t can be found that the Young’s modulus of the membranes increases from 5.22 MPa to 89.72 MPa.These results from lower IEC and crosslinking structure after sol-gel reaction of KH 792.

Application Performance of Lignin-modified Amino-sulfonic Acid-based Dispersant on the Ceramic Slurry Yuxia Panga, Fei Gaob, Hongming Louc and Yonghong Dengd * School of Chemistry and Chemical Engineering, State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong, China aeyxpang@scut.edu.cn, bfeifei0707@yahoo.cn, ccehmlou@scut.edu.cn, dyhdeng@scut.edu.cn Keywords: lignin, modified, ceramic slurry, dispersion, stability Abstract.
Lignin, which is the most abundant organic polymer in the plant world and is a polyphenolic material arising from the copolymerization of three phenylpropanoid monomers[4], had been successfully used to replace phenol in phenol-formaldehyde resin preparation [5] profiting from its similar structure to phenol.

The Histomorphometry of Rabbit Bone Tissue with Experimental Osteoporosis after Implantation of Biphasic Calcium Phosphate Materials Vladislavs Ananjevs1,a*, Arnis Abolins2,b, Janis Locs3,c, Ilze Salma1,d, Andrejs Skagers1,e, Janis Vetra4,f, Vladimir Kasyanov5,g 1Department of Oral and Maxillofacial Surgery, Riga Stradins University, Riga, Latvia 2Department of Pathology, Riga Stradins University, Riga, Latvia 3Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre, Institute of General Chemical Engineering, Faculty of Material Science and Applied Chemistry, Riga Technical University, Riga, Latvia 4Institute of Anatomy and Anthropology, Riga Stradins University, Riga, Latvia 5Laboratory of Biomechanics, Riga Stradins University, Riga, Latvia av.ananjevs@gmail.com, barnis.abolins@rsu.lv, cjanis.locs@rtu.lv, dsalma.ilze@gmail.com, eandrejs.skagers.
Discussion Osteoporosis is a systemic skeletal disease characterized by low bone mass and microarchitectural changes in bone structure that make the bone more fragile and easier to fracture [8].

Besides that, graphene has been a hot topic in this material and chemistry field.
Moreover, the chemical structure of the fiber and matrix is different and makes it more challenging to produce high performance composite materials.

Preparation and Characterization of Carrot Nanofiber and their Reinforced Nanocomposite Films Yeng-Fong Shih1,a, Zhong-Zhe Lai2,b and Venkata Krishna Kotharangannagari3,c 1,2,3Department of Applied Chemistry, Chaoyang University of Technology, No. 168, Jifeng E.
Cellulose nano-fiber (CNF) is generally a dendritic structure composed of dozens of microfibers with interconnected surfaces, and the size of the fibers varies depending on the type and preparation method.

Microstructure Evaluation of Ceramic Materials Used in the Generation IV Reactors Daniela Marušáková1, 2, a *, Petra Bublíková1, b, Jan Berka1, 2, c, Jiří Hamáček2, d and Jana Kalivodová1, e 1Centrum Výzkumu Řež, Hlavní 130, 250 68 Husinec-Řež, Czech Republic 2University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic adaniela.marusakova@cvrez.cz, bpetra.bublikova@cvrez.cz, cjan.berka@cvrez.cz, djiri.hamacek@vscht.cz, ejana.kalivodova@cvrez.cz Keywords: ceramics, Al2O3, high-temperature, generation IV.
· content of Al2O3 has a major influence on the resistance of the structure to the thermal threatening and chemical environment – in lower content of Al2O3 new phase of sharp shape was detected · density of new phase is higher in Lunit 73 after the He exposure, than in sample after the air exposure · exposure to air and helium had no significant effect on percentage change of porosity · on the other hand exposures had significant influence on character of pores, because of high temperature, when sintering of ceramics occurred · change in character of pores could have influence on mechanical properties Acknowledgment The presented work was financially supported by the Ministry of Education, Youth and Sport Czech Republic (National Programme of Sustainability II) Project LQ1603 (Research for SUSEN).

The representatives most used in the group of calcium phosphate bioactive synthetic materials (Ca/P) are the hydroxyapatite, Ca10(PO4)6(OH)2, and β-tricalcium phosphate, Ca3(PO4)2, due to osteoconductivity, crystallographic structure and chemical composition similar to skeletal tissue (7), with increasing application of these materials in the medical and dental areas (8).
Radiation Physics and Chemistry,81 (2), p. 118-125, 2012

Controlled and Uniform Wet Etching of Molybdenum Nanowires Kerong Deng1,2,a, Ivan Erofeev1,2,b, Angshuman Ray Chowdhuri1,3,c, Khakimjon Saidov1,2,d, Zainul Aabdin4,e, Antoine Pacco5,f, Harold Philipsen5,g, Frank Holsteyns5,h, Han Vinh Huynh3,i, and Utkur Mirsaidov1,2,6,7,j * 1Centre for BioImaging Sciences, Department of Biological Sciences, National University of Singapore, Singapore, 117557, Singapore 2Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore, 117546, Singapore 3Department of Chemistry, Faculty of Science, National University of Singapore, Singapore, 117453, Singapore 4Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 138634, Singapore 5Imec, Kapeldreef 75, B-3001, Leuven, Belgium 6Department of Physics, National University of Singapore, Singapore, 117551, Singapore 7Department of Materials Science and Engineering, National University of Singapore, Singapore
Introduction The demand for high performance transistor devices necessitates the downsizing of nanoscale metal structures with complex geometries.

In this paper, the limitation of wet cleaning on HAR 3D NAND channel holes was evaluated by formulating DSP+ chemistry to remove organics and oxide in holes.
"Cleaning for deep-submicron structures."