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Electrochemical sensing of L-histidine based on structure-switching aptamer and Elongated Tetrahexaheral Gold Nanocrystals Zhengbo Chen1†, Xiaojiao Mu1†, Jing Li, Lidong Li* and Lin Guo* School of Chemistry & Environment, Beihang University, Beijing, 100191, China *Corresponding author.
A sensitive aptasensor for detection of L-histidine based on switching structure of aptamer and elongated tetrahexaheral gold nanocrystals (ETHH Au NCs) is presented.
Inset: Secondary structure of L-histidine dependent DNAzyme employed.
Particually, the aptasensor reaches equilibration very rapidly, complete saturation of the SWV signal is in less than 30 s, presuming that the fast response is ascribed to the high catalytic activity of the self-cleaving strand DNA(1) with kobs=0.2 min-1 [12] and the fast equilibrium between the duplex configuration and the favorable secondary structure of DNA(2).

Preliminary Study on the Effect of Sulphuric Acid to Nitric Acid Mixture Composition, Temperature and Time on Nitrocellulose Synthesis Based Nata de Coco NURSYAFIQAH Jori Roslan1,a, SITI HASNAWATI Jamal2,b*, KEAT KHIM Ong2,c and WAN MD ZIN Wan Yunus1,d 1Department of Defence Science, Faculty of Defence Science and Technology, National Defence University of Malaysia, 57000 Kuala Lumpur, Malaysia. 2Department of Chemistry and Biology, Centre for Defence Foundation Studies, National Defence University of Malaysia,57000 Kuala Lumpur, Malaysia.
For instance, it has strong tensile strength, ultrafine and great pure fiber network structure [3].
In contrast, an amorphous structure of nitrocellulose was obtained when broad diffraction peaks appeared in nitrocellulose, hence resulted in its low crystallinity [3,15].
Fadeev, “Raincoat for explosives”: Surface chemistry approach to control wetting of nitrocellulose with nitroglycerin, Journal of Colloid and Interface Science 547 (2019) 145–152
Taylor, A review of the synthesis, chemistry and analysis of nitrocellulose, Journal of Energetic Materials 8(3) (1990) 149-203

Loading of Silver Nanoparticles onto Silica Sand Surface and Simulating of Heat Dissipation for Therapeutic Heat Applications Junya Jettanasen1,a*, Thunchanok Prakit1,b, Nattapon Thongyoo1,c and Panapong Songsukthawan2,d 1Department of Chemistry, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10903, Thailand 2Department of Electrical Engineering, School of Engineering, King Mongkut's Institute of Technology Ladkrabang, Ladkrabang, Bangkok 10520, Thailand afscijyk@ku.ac.th, bthunchanok.pr@ku.th, cthiramet.t@ku.th, dplugov82@gmail.com Keywords: silver nanoparticles, silica sand, thermal dissipation, heat storage, finite element method Abstract.
The diffraction peaks at 38.1°, 44.3°, 64.4°, 77.4°, and 81.5° corresponding to (111), (200), (220), (311), and (222) planes of the face-centered cubic structure of metallic silver were detected (JCPDS file no.04-0783).
Acknowledgments This research was financially supported by the Department of Chemistry, Faculty of Science, Kasetsart University, Thailand.
Gavin, Effects of repeated local heat therapy on skeletal muscle structure and function in humans, Journal of Applied Physiology, 128 (2020) 483-492
Aroujalian, Control size and stability of colloidal silver nanoparticles with antibacterial activity prepared by a green synthesis method, Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, 43 (2013) 543-551

Then the molecular model of graphite-like structure-amorphous carbon system has been built and simulated to study the effect of graphite-like structure on the graphitization process of amorphous carbon.
Among them, sp2 hybridization represented graphite crystal structure, while sp3 hybridization represented diamond crystal structure [13].
Effect of Graphite-like Structure on Graphitization Process of Amorphous Carbon.
These materials have some graphite-like structure characteristics, and are called graphite-like structure for short.
Materials Chemistry and Physics, 2002, 73(2-3), 162. ].

Ajibade2,b 1Department of Chemistry, University of Fort Hare, Private Bag X1314, Alice, 5700, South Africa 2School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg campus, Scottsville 3209, South Africa a*E-mail: jmbese@ufh.ac.za, bE-mail: AjibadeP@ukzn.ac.za Keywords: Complexes, Nanoparticles, Photoluminescence, Tauc plot Abstract.
The spectra confirmed the proposed structures of dithiocarbamate ligands and ruthenium(III) complexes.
Where (a to d) are 1H-NMR positions on the structure.
The 1H-NMR, 13C-NMR and FTIR studies confirmed the proposed structures of dithiocarbamate ligands and ruthenium(III) complexes.
Vancu, Optical properties and electronic structure of amorphous germanium, Physica Status Solidi B 15(2) (1966) 627-637.

The Geotechnical Engineering Chemistry is one of the main methods to change the loess sites engineering properties [9].
Because of forming loess acidity conditions by adding CO2, it is in favor of forming stronger connected power, such as chemistry hydrogen.
Because of forming loess acidity conditions by adding CO2, it is in favor of forming more strong connected power, such as chemistry hydrogen.
The SEM photographs Fig.2a indicated: natural loess particle has bracket hollows structures obviously, with little cement material between particles.
(in Chinese) [9] Xiong H.j., Lin T.j., Li N..(2001), geotechnical engineering chemistry [M].

In addition, the electrical conductivity of fibrous mats is apparent and can’t be compared with the conductivity of bulk structures (closed cells).
This is because of the major difference in the fill factor of both structures [5],[39]. 3.
Wnek, “Electrospinning and stabilization of fully hydrolyzed poly (vinyl alcohol) fibers,” Chemistry of Materials, vol. 15, no. 9, pp. 1860–1864, 2003
Jones, “Sub-micrometer conducting polyaniline tubes prepared from polymer fiber templates,” Chemistry of materials, vol. 16, no. 3, pp. 371–373, 2004
Mead, “Core‐sheath structure in electrospun nanofibers from polymer blends,” Macromolecular Materials and Engineering, vol. 291, no. 11, pp. 1307–1314, 2006

Preparation and Electrochemical Properties of CeO2/rGO Composite Material Jinhui Xu1,a, Lin Wu1,2,b, Ying Liu1,c, Jiaming Liu1,d, Shasha Shu1,e, Yuxiao Yang1,f, Xiang Kang1,g and Ya Hu1,2,h* 1Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, China 2Academy of Green Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan, China axjh1994@wust.edu.cn, bwulin@wust.edu.cn, cLiuying-9325@wust.edu.cn, d1015025164@qq.com, e905879814@qq.com, f894183297@qq.com, g1261728219@qq.com, hhuya@wust.edu.cn Keywords: CeO2, composite material, electrochemical performance Abstract.
The microscopic phase structure and microstructure of the samples were characterized by SEM, XRD and FTIR.
The special structure of graphene provides a continuous network and more active sites for redox reactions.
Furthermore, the sheet structure of graphene makes a larger specific surface area for deposition of CeO2 nanoparticles.
Sun, The effect of hydrothermal reaction temperature on the morphology, structure and supercapacitor properties of three-dimensional reduced graphene oxide, Acta Physico-Chimica Sinica. 30(2014) 2077-2084

In this study, the air void structure factors were discussed in detail.
The pore structure parameters are pore size, shape, and distribution.
In this study, different vibration time was used to change the pore structure factors.
This resulted from the different air void structures in concrete.
Different air void structures were realized at different durations of vibration.

The Quasi-Binary System CeCoC2–CeNiC2: Crystal Structure and Physical Properties Herwig Michor1,a*, Alexander Schumer1,b, Mykola Hembara2,c, Bogdan Kotur2,d, Volodymyr Levytskyy2,e, Volodymyr Babizhetskyy2,f 1Institute of Solid State Physics, TU Wien, Wiedner Hauptstrasse 8-10, A-1040 Wien, Austria 2Department of Inorganic Chemistry, Ivan Franko National University of Lviv, Kyryla and Mefodiya Str. 6, UA-79005 Lviv, Ukraine amichor@ifp.tuwien.ac.at, balexander.schumer@tuwien.ac.at, chembaramukola@gmail.com, dbohdan.kotur@lnu.edu.ua, ev.levyckyy@gmail.com, fv.babizhetskyy@gmail.com Keywords: carbides; CeNiC2-type structure; CeCoC2-type structure; magnetic properties.
RCoC2 compounds display two structure types: the CeCoC2-type structure, space group Bb (standard setting Cc) for R being a light rare-earth metal, [2], and the CeNiC2-type structure for R being a heavy rare-earth.
Right: view of the CeCoC2- and CeNiC2-type crystal structures.
Bruskov, Crystal structure of compounds RCoC2 (R = Ce, La, or Pr), Sov.
Kotsanidis, Magnetic structures of rare earths R in RCoC2 and RNiC2 compounds, J.