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Synthesis of Co/TiO2 nanocomposite and its use in construction of a sensitive and selective sensor for determination of ciprofloxacin Mojtaba Shamsipura*, Mohammad Bagher Gholivandb, Sara Dehdashtianc, Mostafa Feyzid and Fataneh Jafarie Department of Chemistry, Razi University, Kermanshah, Iran amshamsipur@yahoo.com, bmbgholivand@yahoo.com, csaradehdashtian@yahoo.com, dfaizi.c@gmail.com, efataneh.jafari@yahoo.com Keywords: Ciprofloxacin, Co/TiO2 nanocomposite, scanning electron microscopy, modified carbon paste electrode, cyclic voltammetry, differential pulse voltammetry.
The surface structure and composition of nanoparticles were characterized by scanning electron microscopy (SEM), X-ray powder diffraction analysis (XRD), Fourier transform infrared (FTIR) spectrometry, thermal gravimetric analysis (TGA) and N2 physisorption.
Among these, the sol–gel chemistry is a suitable technique as it allows to control the shape and size of pores in the titania template and thus the composition and nanostructure of the final material5.

Synthesis of Amphoteric Phosphate Ester Surfactant by Polyphosphoric Acid and Its Application in Free-chrome Collagen Fiber Ren Longfanga , Wang Xuechuan b, Qiang Taotao c , An Huaruid Key Laboratory of Aids Chemistry & Technology for Light Chemical Industry, Ministry of Education, Shaanxi University of Science & Technology, Shaanxi, Xi'an 710021,China a email: renlf1010@163.com, bemail: wxc-mail@163.com, cemail: qiangtt515@163.com, demail: Keywords: Polyphosphoric acid, amphoteric phosphate ester surfactant, free-chrome collagen fiber Abstract: In order to avoid using P2O5 as phosphorylation reagent in phosphorylation reaction, an amphoteric phosphate ester surfactant was synthesized by using polyphosphate acid as phosphorylation reagent.
The structure of the phosphate ester surfactant was characterized by FTIR.
Modern Chemistry, (1996), p. 23~24

FTIR is used to characterize the structure of waterborne polyurethanes .The emulsion viscosity, mechanical properties of films are measured.
Moreover, for volume expansion, contraction of the battery positive electrode and the negative electrode materials in the process of charge-discharge,suitable binder can play a buffer role, and maintain the stability of the electrode structure[4].
Methyl side in N220 structure hinders molecular chain segment of the regular arrangement, which makes polyurethane films soft and has higher elongation at break which is up to 1150% and lower tensile strength.
The structure of PNA, PCDL, BY3022 contains lots of side groups which destroy polyester crystalline and improve compliance, so the film of NPU3, NPU4, NPU5 have higher elongation at break than others.
Journal of physical chemistry C, 2012,116:4875-4882

Furthermore, the immobilized enzyme is predicted to be prevented from leaching out of the matrix when exterior blow is being tested on the structure.
In another perspective, a review shows that the high enzyme loading in a single structure would reduce its volume in a reactor and thus leads to enzyme activity loss when the structure could not be retained in the reactor [14].
Therefore, more carriers needed with small loading for each structure than to have it pack in an enormous single structure.
Peng, Parameters affecting the performance of immobilized enzyme, Journal of Chemistry 2013 (2013) 7
Wedekind, Immobilized enzymes: methods and applications. in Current Chemistry, Springer Verlag, Berlin, 1999, pp. 95–126

., 31-155 Cracow, Poland 2Pedagogical University, Institute of Physics, Podchorążych 2, 30-084 Cracow, Poland apiotrdulian@indy.chemia.pk.edu.pl, bwbak@up.krakow.pl, ckwc@pk.edu.pl, dckajtoch@up.krakow.pl Keywords: Mechanochemistry, high-energy ball milling, perovskite structure, ferroelectric ceramics, barium titanate, solid solutions.
This paper considers the mechanochemical synthesis of advanced electroceramic material with a perovskite structure as well as this method as an effective way for modifying the properties of BaTiO3 by substitution of foreign ions.
The temperature dependence of real part of dielectric permittivity (ε’) a) and imaginary part of dielectric permittivity (ε") b) for BaTiO3 (BT), Ba0.8Sr0.2TiO3 (BST-0.2) and Ba0.6Sr0.4TiO3 (BST-0.4) samples For BaTiO3 (BT) sample a classic paraelectric – ferroelectric (PE – FE) phase transition at 368 K occurs simultaneously with the change from a cubic to tetragonal structure.
Final remarks - It is shown that the ferroelectrics Ba1-xSrxTiO3 (taking for illustration with the following compositions - Ba0.8Sr0.2TiO3 and Ba0.6Sr0.4TiO3) can be produced in the BaTiO3-SrTiO3 system using the high-energy ball milling technique which complies with the principles of green chemistry

At the same time, the protein structure of the allergens could be changed and improved the nutritional qualities by virtue of the microbial hydrolysis of protein to amino acids and peptides [6].
Microbial hydrolysis of soy protein also can change the structure of the allergens and consequently interfere with the antigen-antibody complex[11].
Tamang, “Changes in the microbial profile and proximate composition during natural and controlled fermentations of soybeans to produce kinema,” Food Chemistry, vol. 12, pp. 317-325, 1995
Somerset, et al., “Amino acid profiles of kinema, a soybean-fermented food,” Food Chemistry, vol. 59, 69-75, 1997
De Lumen, et al., “Lunasin concentration in different soybean genotypes, commercial soy protein, and isoflavone products,” Journal of Agricultural and Food Chemistry, vol. 52, pp. 5882-5887, 2004

Metal nanoparticles have attracted significant attention due to their interesting optical and electronic properties, which have resulted in the exploitation of a number of applications in chemistry and biochemistry.
Schiff base molecules decorated with necessary groups are important in various branches of chemistry as potential biomimics. 2-hydroxy-1-napthaldehyde Schiff bases ligands used in the field of coordination chemistry of metal ions including those present in biological systems [3].
Self-assembled monolayers of metal surfaces applied to organize micro structured electronic circuits on nonconducting surfaces.
Wegelius and Kais Riesanen, 2-hydroxy-1-naphthaldehyde-derived Schiff bases: synthesis, characterization, and structure, J.
[4] J.M.Fernandez-G, F.del Rio-Portilla, B.Quiroz – Garcia, R.A.Toscano, Salcedo, The structures of some ortho-hydroxy Schiff base ligands, J.

Petersburg, Russia 3Institute of Silicate Chemistry, St.
The surface morphology shown in Figure 6 is a fine-grained homogeneous structure with surface microporosity.
Bogdanov, Obtaining coatings on powders by the method of iodine transport, Glass Physics and Chemistry 37(2) (2011) 229-237
Ripan, I Chetyanu, Inorganic chemistry.
Chemistry of metals, Mir, Moscow, 1972.

The acid solution is not only playing a role in transforming the protein to become ion but also breaking the secondary and tertiary structure of the protein that makes protein easier to be ionized.
In the beginning, when the tryptophan missing from the acid extract, it was thought acid treatment disintegrate the tryptophan structure.
However, since the tryptophan was also absent in SDS extract it was predicted that the condition of OPA derivatization process obstructs the tryptophan structure.
Octaviyanti, Isolasi Protein dari Produk Samping Pengolahan Ikan Tenggiri dan Studi Potensinya sebagai Bahan Fortifikasi Asam Amino Esensial Basa, Undergraduate Thesis, Department of Chemistry, Universitas Gadjah Mada, Yogyakarta, 2019
Suryaningtyas, Fraksinasi Kolom Penukar Kation terhadap Protein Produk Samping Industri Ikan Tenggiri dan Studi Potensi Fraksi Hasil sebagai Fortifikan Protein, Undergraduated Thesis, Department of Chemistry, Universitas Gadjah Mada, Yogyakarta, 2020

Based on the XRD results, all materials were single phase with the hexagonal structure without any impurities presents.
Normally a chelating agent is used in the soft chemistry method but in our work, the ZnO nanostructures have been synthesized without using any chelating agent.
The diffraction samples of each sample were well in agreement with the ICDD reference number 01-089-0511implying a ZnO structure.
These results indicate that the synthesized samples were single phase with hexagonal structure and have space group P63mc.
The ZnO materials obtained are single phase with hexagonal structure and have space group P63mc.