Preparation and Characterization of Silica-Enoxil Nanobiocomposites
详细信息 查看全文
- 作者：Pavlo O. Kuzema ; Iryna V. Laguta ; Oksana N. Stavinskaya…
- 关键词：Adsorption ; Antioxidant ; Biomolecules ; Composite ; Desorption ; Enoxil ; Fumed silica ; 68.43.Fg ; 81.07.Wx ; 83.80.Ab
- 刊名：Nanoscale Research Letters
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：11
- 期：1
- 全文大小：1,465 KB
- 参考文献：1.Pandey KB, Rizvi SI (2009) Plant polyphenols as dietary antioxidants in human health and disease. Oxid Med Cell Longev 2:270–278. doi:10.4161/oxim.2.5.9498 CrossRef
2.Madhavi DL, Deshpande SS, Salunlhe DK (1996) Food antioxidants: technological, toxicological and health perspectives. CRC Press, New York
3.Bekker EM, Nissen LR, Skibsted LH (2004) Antioxidant evaluation protocols: food quality or health effects. Eur Food Res Technol 219:561–571. doi:10.1007/s00217-004-1012-4 CrossRef
4.Canuti V, Puccioni S, Giovani G, Salmi M, Rosi I, Bertuccioli M (2012) Effect of oenotannin addition on the composition of Sangiovese wines from grapes with different characteristics. Am J Enol Vitic 63:220–231, 10.5344/ajev.2012.11091CrossRef
5.Lupascu T, Lupascu L. The obtaining procedure of the watersoluble enotannins. Patent of the Republic of Moldova # 3125, MD, BOPI:8, 2006.
6.Duca G, Lupaşcu T, Vlad P, Kulciţki V, Nastas R (2006) Studies on the water solubilization processes of oenotannins and their phisico-chemical properties. Chemistry Journal of Moldova. Gen Ind Ecol Chem 1:74–79
7.Lupascu L, Rudic V, Cotos V, Lupascu T (2010) Antimicrobial activity of the autochthonous compound Enoxil. J Biomed Sci Eng 3:758–762. doi:10.4236/jbise.2010.38101 CrossRef
8.Chung K, Lu Z, Chou M (1998) Mechanism of inhibition of tannic acid and related compounds on the growth of intestinal bacteria. Food Chem Toxicol 36:1053–1060. doi:10.1016/S0278-6915(98)00086-6 CrossRef
9.Chuiko AA (ed) (2003) Medical chemistry and clinical application of silica. Naukova Dumka, Kyiv (in Russian)
10.Laguta IV, Stavinskaya ON, Kuzema PA, Kazakova OA (2013) Coadsorption of ascorbic acid and α − tocopherol antioxidants on partially trimethylsilylated silica surface. Prot Met Phys Chem Surf 49:398–401. doi:10.1134/S2070205113040096 CrossRef
11.Cances E, Mennucci B, Tomasi J (1997) A new integral equation formalism for the polarizable continuum model: theoretical background and applications to isotropic and anisotropic dielectrics. J Chem Phys 107:3032–3041. doi:10.1063/1.474659 CrossRef
12.Schmidt MW, Baldridge KK, Boatz JA, Elbert ST, Gordon MS, Jensen JJ, Koseki S, Matsunaga N, Nguyen KA, Su S, Windus TL, Dupuis M, Montgomery JA Jr (1993) General atomic and molecular electronic structure system. J Comput Chem 14:1347–1363. doi:10.1002/jcc.540141112 CrossRef
13.Brand-Williams W, Cuvelier ME, Berset C (1995) Use of a free radical method to evaluate antioxidant activity. LWT Food Sci Technol 28:25–30. doi:10.1016/S0023-6438(95)80008-5 CrossRef
14.Burneau A, Barres O, Gallas JP, Lavalley JC (1990) Comparative study of the surface hydroxyl groups of fumed and precipitated silicas. 2. Characterization by infrared spectroscopy of the interactions with water. Langmuir 6:1364–1372. doi:10.1021/la00098a008 CrossRef
15.Pantoja-Castroa MA, González-Rodríguez H (2011) Study by infrared spectroscopy and thermogravimetric analysis of tannins and tannic acid. Rev Latinoamer Quím 39:107–112
16.Garro Galvez JM, Fechtal M, Riedl B (1996) Gallic acid as a model of tannins in condensation with formaldehyde. Thermochim Acta 274:149–163. doi:10.1016/0040-6031(95)02630-4 CrossRef
17.Garro Galvez JM, Riedl B, Conner AH (1997) Analytical studies on tara tannins. Holzforschung 51:235–243. doi:10.1515/hfsg.1997.51.3.235 CrossRef - 作者单位：Pavlo O. Kuzema (1)
Iryna V. Laguta (1)
Oksana N. Stavinskaya (1)
Olga A. Kazakova (1)
Mykola V. Borysenko (1)
Tudor Lupaşcu (2)
1. Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, General Naumov Street., 17, Kiev, 03164, Ukraine
2. Institute of Chemistry, Academy of Sciences of Moldova, Academiei Str., 3, 2028 MD, Chisinau, Republic of Moldova - 刊物主题：Nanotechnology; Nanotechnology and Microengineering; Nanoscale Science and Technology; Nanochemistry; Molecular Medicine;
- 出版者：Springer US
- ISSN：1556-276X
文摘
Silica-Enoxil nanobiocomposites with 13 %w of Enoxil were prepared either by mechanical mixing of corresponding powders or by sorptive modification of fumed silica powder with aqueous Enoxil solution under fluidized bed conditions. The interaction of fumed silica with Enoxil and the properties of silica-Enoxil composites have been investigated using IR spectroscopy, thermogravimetric analysis, and quantum chemistry methods, as well as by means of water absorption, Enoxil desorption, and 2,2-diphenyl-1-picrylhydrazyl (DPPH) test. It has been shown that the main biomolecules of Enoxil composition interact with silica involving their hydroxyl groups and surface silanol groups. The water absorption of silica-Enoxil nanocomposites was found to be less than that for the individual components. The Enoxil biomolecules are readily and completely desorbed from silica surface into water, and the antioxidant activity of desorbed Enoxil is practically the same as that for the just dissolved one. Keywords Adsorption Antioxidant Biomolecules Composite Desorption Enoxil Fumed silica