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The Antimicrobial Action of Silver Halides in Calcium Phosphate Daina Kalnina1*, Karlis A Gross1, Pavels Onufrijevs1, Edvins Dauksta1, Vizma Nikolajeva2, Zivile Stankeviciute3, Aivaras Kareiva3 1Institute of Biomaterials and Biomechanics, Riga Technical University, Latvia 2Faculty of Biology, University of Latvia, Latvia 3Faculty of Chemistry, University of Vilnius, Lithuania daina.kalnina@rtu.lv (corresponding author), Keywords: antimicrobial, bacteria, amorphous calcium phosphates, apatite, silver halides Abstract.
The two different strategies for imparting antimicrobial activity to implants involves adding active agents or including ionic species in the structure of the biomaterial.
Ag 107.9 insoluble a) Handbook of Chemistry and Physics, 66th Ed.; CRC Press: Boca Raton, FL., 1985-1986.

The Na2SiF6 salt is a white and odorless powder with hexagonal crystal structure, stable and safe at room temperature but decomposes on heating at relatively low temperatures (523-873 K).
Pech-Canul, Materials Chemistry and Physics, Vol. 98 Issue 1 (2006), p. 27 [3] A.
Weast: CRC Handbook of chemistry & physics. 51 st edition, the chemical Ribber Co., Cleveland, Ohio, USA, p.

A hedonic test was carried out using non-structured 10 point scales (0 = dislike extremely and 10 = like extremely) in which the assessors evaluated different attributes: colour, texture, odour, taste and overall acceptability.
Effect of the addition of a neutral proteinase from Bacillus subtilis (Neutrase) on nitrogen fractions and texture of Spanish fermented sausage.Journal of agricultural and food chemistry, 45(7), 2798-2801. (1997) [7] Jiang H.B., Xue W.B.
Food chemistry, 145, 228-236. (2014)

Increasing attention has been paid to calixarenes and its derivatives owing to their popular building blocks in supramolecular chemistry, especially in molecular recognition [7].
And the development in calixarene chemistry is mainly due to the possibilities of chemical modifications at the upper or lower rim to yield new macro molecules [10].
The graph of Cu2+, Pb2+ and Ni2+ had appeared different maximum absorption peak (Ni2+ at 256nm, Cu2+ at 255nm, Pb2+ at 266nm), at the same time the absorbance of Cu2+, Pb2+ was increased significantly, which is indicated that the inner structure of 5,11,17,23,29,35-hexacarboxy-37,38,39,40,41,42-hexa-methoxy- hydroxamic calix[6]arene was changed by the complexation of Cu2+, Pb2+ ion .

Changes in Ecological Linseed Oil Paints During Outdoor Weathering of Wood Panels Errj Sansonetti1,2,a*, Dace Cīrule2,b, Bruno Andersons2,c, Ingeborga Andersone2,d, Edgars Kuka1,2,e 1Riga Technical University, Faculty of Materials Science and Applied Chemistry, P.
Valdena 3/7, Riga, Latvia 2Latvian State Institute of Wood Chemistry, Dzerbenes 27, Riga, Latvia aharrysansonetti@gmail.com, bdace.cirule@edi.lv, cbruno.andersons@edi.lv, di.andersone@edi.lv, eedgars.kuka@edi.lv Keywords: wood, eco paint, linseed oil, outdoor weathering, pigments, color changes.
This behavior is directly related to the concentrations of various fatty acids present in the structure, as they are responsible for the formation of a coherent solid film from liquid oil.

This is because carbon has a wide range visible light absorption, thereby permeating capability of carbon elements to the lattice structure of TiO2.
Hasnain Isa: Journal of Industrial & Engineering Chemistry Vol. 26 (2015), p. 1-36 [4] Adawiya J.
Lee: Journal of Photochemistry & Photobiology A Chemistry Vol. 161(2-3) (2004), p. 131-140

A Protease-Activated Ratiometric Fluorescent Probe for pH-Mapping of Malignant Tumor Yi Hou1, a *, Jin Zhou1,b, Zhenyu Gao2,c, Xiaoyu Sun1,d, Chunyan Liu1,e, Dihua Shangguan1,f, Wensheng Yang2,g and Mingyuan Gao1,h 1Institute of Chemistry, the Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing 100190, China, 2College of Chemistry, Jilin University, Changchun 130012, China.
Though accurately extracting the pH information solely based the two-dimensional (2D) optical imaging results remains difficult owing to the three-dimensional nature and inhomogeneous structure of a given tumor, the absorption and scattering of excitation and emission by both tumor tissue and the overlying skin, etc, semi-quantitative analysis was carried out by taking the absorption of skin into consideration.

Therefore, the knowledge concerning the soil chemistry and soil organic matter, which are obtained by analyzes of soil samples collected from different soil management, are very important [1].
Conventional tillage change soil structure greatly, which is harmful to SOC [8, 9].
Soil analysis methods in agricultural chemistry: Beijing: China agricultural sci-tech publication(1999)

Protonation of Tyrosine Kinase Inhibitor Lapatinib: A Theoretical and Experimental Study Ilze Grante1,a*, Rihards Kluga1,b and Liana Orola1,c 1University of Latvia, Faculty of Chemistry, Jelgavas 1, Riga, Latvia ailze.grante@lu.lv, brihards.kluga@lu.lv, cliana.orola@lu.lv Keywords: lapatinib, UV/Vis spectroscopy, protonation, NMR spectroscopy, ZINDO-CI.
In the known crystal structures of lapatinib tosylate and ditosylate [5] protonation occurred on nitrogen atoms N1 and N1N2 respectively.
ACD/Labs, Advanced Chemistry Development Inc., 90 Adelaide Street, West Toronto, Ontario, M5H3V9, Canada

Techniques and Technology of Waste Disposal of Lignite Briquettes Iryna Matsyuk1,a*, Vyacheslav Krivoschokov2,b, Natalia Kushnіruk3,c, Liudmyla Skliar3,d 1Department of Machinery Design Fundamentals, Dnipro University of Technology, 19 Yavornytskoho Ave, Dnipro, 49005, Ukraine 2Department of Mineral Dressing, Dnipro University of Technology, 19 Yavornytskoho Ave, Dnipro, 49005, Ukraine 3Department of Mineral Dressing and Chemistry, Kryvyi Rih National University, 11 Vitalius Matusevich St., Kryvyi Rih, 50000, Ukraine amatsyukin@ua.fm, bkryvoschokov.v.i@nmu.one, ckushniruk-natalia@ukr.net, dlyuda.cuclina@gmail.com Keywords: waste-free technology, lignite slurry and cinders, separate treatment of floating and sinking fraction, reagentless flotation separation, deposition Abstract.
This provides reasons to consider the difference of crystalline structure of these fractures, which influences their technological properties.
Chemistry and physics of coal.