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Online since: June 2021
Authors: Achmad Chafidz, Lilis Kistriyani, Lutfi Kurniawan, Fadhli Syaputra
The cellular structures of the watermelon rind were grinded using a homogenization machine at rotation speed of 15,000 rpm for about 3 minutes until paste was formed.
[5] Cevallos-Casals, B.A. & Cisneros-Zevallos, L., 2004, Stability of anthocyanin-based aqueous extracts of Andean purple corn and red-fleshed sweet potato compared to synthetic and natural colourants, Journal of Food Chemistry, Vol.86, page. 69-77
[10] Wang, L.J., Su, S., Wu,J., 2014, Variation of anthocyanins and flavonols in Vaccinium uliginosum berry in Lesser Khingan Mountains and its antioxydant activity, Journal of Food Chemistry, Vol.160, Page. 357-364
[13] Mansouri, A., Embarek, G., Kokkalou, E., & Kefalas, P., 2005, Phenolic Prole and Antioxidant Activity of Algerian Ripe Date Palm Fruit (Phoenix dactylifera), Journal of Food Chemistry, Vol.89, Page. 411-420
Online since: October 2015
Authors: Vladimir Kozik, Vladimir K. Ivanov, Alexey A. Sadovnikov, Alexander E. Baranchikov, Lyudmila P. Borilo, Sergey A. Kozyukhin
One Step Microwave-Assisted Synthesis of Fluorinated Titania Photocatalyst SADOVNIKOV Alexey A.1, BARANCHIKOV Alexander E.1, KOZIK Vladimir V.2, BORILO Lyudmila P.2, KOZYUKHIN Sergey A.1,2 and IVANOV Vladimir K.1,2,* 1 Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Levinsky ave., 31, Moscow 119991, Russia 2 National Research Tomsk State University, Lenina ave., 36, Tomsk 634050, Russia van@igic.ras.ru Keywords: fluorinated titania, photocatalyst, microwave-assisted hydrothermal treatment Abstract.
Actually, fluorination has multiple effects on the surface chemistry of TiO2 and can lead to the formation of TiO2 crystals with exposed high energy {001} facets [16], while other possible reasons for enhanced photocatalytic activity of fluorinated titania involve the increase in specific surface area [17], adsorption activity and changes in the mechanisms of photodegradation [18].
The reason for such non-linear dependence is connected with the aqueous chemistry of titanium fluoride complexes and variation in crystal growth mechanisms at different NH4F concentrations, namely dissolution-crystallization and oriented attachment [23].
In all cases, the DBET values are practically equal to the corresponding DXRD values, indicating a low level of particle aggregation, or loose structure of particle aggregates.
Online since: August 2022
Authors: Anil Pal, Ruchi Gupta, Nicholas J. Goddard
Leaky Waveguide Grating (LWG) Biosensor Ruchi Gupta1,a*, Anil Pal1,b and Nicholas Goddard2, c 1School of Chemistry, University of Birmingham, Birmingham, B15 2TT, UK 2Process Instruments (UK) Ltd, Burnley, BB11 3BP, UK a*r.gupta.3@bham.ac.uk, ba.k.pal@bham.ac.uk, cnick.goddard@processinstruments.net Keywords: Biosensor, point-of-use, label-free, grating, hydrogel, protein.
Finally, chitosan films were exposed to a laser interference lithography (IL) set-up for 10 min to create a grating with alternative strips of biotin and primary amines, and the resulting structure is called LWG.
To address these challenges, future work will investigate immobilization chemistries for attachment of REs directly to chitosan without an intermediate streptavidin/biotin-protein A step.
Wirz, Photoremovable protecting groups in chemistry and biology: reaction mechanisms and efficacy, Chem.
Online since: May 2022
Authors: Evin Ayu Hartanti, Lukman Atmaja, Devi Ruchmana Rachmawati
Synthesis and Characterization of Chitosan/Alginate/Mesoporous Phosphotungstic Acid Electrolyte Membranes for Direct Methanol Fuel Cell Applications Lukman Atmajaa*, Evin Ayu Hartantib and Devi Ruchmana Rachmawatib 1Department of Chemistry, Institut Teknologi Sepuluh Nopember, Jl.
Acknowledgments This research was supported by the Material Chemistry and Energy Laboratory, Department of Chemistry, Institut Teknologi Sepuluh Nopember.
Yin, Alginate lyase: Review of major sources and classification, properties, structure-function analysis and applications, Bioengineered 6 (2015) 125–131
Online since: January 2017
Authors: Svetlana D. Polishchuk, Margarita V. Samoylova, Dmitriy G. Churilov, Nikolai V. Byshov, Anna A. Nazarova
Biologically Active Nanomaterials in Potato Growing Samoylova Мargarita.V. 1,a,*, Churilov Dmitriy G. 1,b, Nazarova Аnna А. 1,c, Polishchuk Svetlana D. 1,d and Byshov Nikolai V.1,e 1 Ryazan State Agrotechnological University, Division of Chemistry, Kostychev st., 1, Ryazan, 390042, Russia ariazan2006@yandex.ru, bchurilov.dmitry@yandex.ru, cNanocentr-APK@yandex.ru, dsvpolishuk@mail.ru, ebyshov63@mail.ru Keywords: tuber crops; potato; ferrum, cobalt, copper nanopowders; nano-bio-drugs; biologically active nanomaterials; yield; yield structure.
We have studied the influence of nanomaterials on morphological and physiological parameters of plants, the yield, its structure and chemical composition of potato as well as on vitamins C and PP in potato tubers.
Aim of Investigation – studying the influence of different nanomaterials on morphological and physiological parameters of plants, the yield, the yield structure and potato chemical constitution and their application in intensive technology of growing this crop.
Besides tubers mass increase per hectare there has been some increase of qualitative parameters of the yield structure (Table 3).
Potato Yield Structure # Variant Tubers Number per 1 Bush, [pcs] Relation to control, [%] Average Mass of 1 Tuber, [g] Relation to control, [%] 1.
Online since: December 2022
Authors: Mamoru Aizawa, Hiroshi Nagashima, Hitomi Matsunari, Yusuke Shigemitsu
Various products are commercially available, and the key differentiator among available products besides composition is their porous structure.
The porous structure of the material should allow sufficient circulation of body fluid and have enough interconnection size for cell penetration.
Newly-formed bone was observed inside the porous structure of both HAp and β-TCP ceramics.
This result suggested that the interconnection size of HAp ceramics was not adequate for sufficient osteoblast penetration inside the porous structure.
In this study, we have prepared β-TCP ceramics having same porous structure and porosity with HAp ceramics.
Online since: January 2010
Authors: Christoph Leyens, A. Flores-Renteria, W. Garkas
Abstract Due to a nanolaminate structure, MAX phases are materials with an interesting set of properties.
In addition to the chemistry, high synthesis temperature is required for the formation of a complex hexagonal structure with long c-axis [13].
Several measures have been reported on the manufacture of these nanolaminate structures, such as, crystallographically oriented substrates and seed layers [8, 9, 13, 14].
Schneider at Materials Chemistry at RWTH Aachen for carrying out the XRD analyses.
Online since: July 2017
Authors: Carlos Alberto Alves Cairo, Ricardo Mendes Leal Neto, Alfeu Saraiva Ramos, Vinícius André Rodrigues Henriques, Gustavo Souza de Alencar e Silva
In addition, the lattice parameter and cell volume of W were reduced during ball milling of W-50at%C powders, indicating that the C atoms dissolved into the W lattice in order to form metastable structures.
In the powder metallurgy process, the hard metal is produced by liquid phase sintering, which is a non-equilibrium thermodynamic process that transform the aggregated powder into a solid structure [1].
Depending on the starting powders, type of mill and milling parameters, the nanosized and metastable structures can be achieved.
The lattice parameter and cell volume of W were reduced during ball milling of W-50at%C powders, indicating that the C atoms were dissolved into the W lattice in order to form metastable structures.
Schuber: Tungsten-Properties, Chemistry, Technology of the Element, Alloys and Chemical Compounds.
Online since: November 2012
Porosity is anathema in metal castings, but for light and stiff energy absorbing structures enhancing porosity up to 90 percent by volume is desirable as demonstrated by sea sponge.
Geetu Sharma, Department of Chemistry, IIT Roorkee Dr.
Online since: March 2013
The papers presented in chapter II under the heading structural and optical properties of nanocrystalline materials describe in terms of stoichiometric point of view the structural evolution and transformation of different materials system and in particular the role played by crystal structures in controlling the properties of nanocrystalline materials.
Guest Editors S Velumani PhD Department of Elecrical Engineering (SEES), CINVESTAV, Mexico City, Mexico N.Muthukumarasamy PhD Department of Physics, Coimbatore Institute of Technology, Coimbatore, India Organizing Committee Chair Patrons Dr.S.R.K.Prasad, Correspondent, CIT Dr.Rene Asomoza Palacio, General Director, Cinvestav Patron Dr.R.Prabhakar Professor Emeritus & Secretary, CIT International Coordinator Dr.S.Velumani Professor, CINVESTAV - Mexico Conference Chair Dr.V.Selladurai Principal, CIT Co-chair Dr.R.Sriram Professor and Head, Department of Chemistry, CIT Organizing Secretary Dr.