29 research outputs found
Implementation of multiparametric magnetic resonance imaging technology for evaluation of patients with suspicion for prostate cancer in the clinical practice setting
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/147814/1/bju14515_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/147814/2/bju14515.pd
ΠΠΌΡΠ½ΠΈ Π»Π΅ΠΉΠΊΠΎΡΠΈΡΠ°ΡΠ½ΠΎΠ³ΠΎ ΡΠΏΠ΅ΠΊΡΡΠ° ΠΊΡΠΎΠ²Ρ Ρ ΡΠ΅Π½ΡΠΈΠ±ΡΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Π½ΡΡΡΠΎΠΊΡΠΎΠ»ΡΠ½ΠΎΠΌ ΠΌΡΡΡΠ°ΠΊΡΠ² Π² ΡΠΌΠΎΠ²Π°Ρ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π½Ρ ΡΠΎΠΊΡΠΈΠΊΠΎΠ»ΠΎΠ³ΡΡΠ½ΠΎΠ³ΠΎ Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΡ
Aim. The purpose of the work is to study the changes in the populationΒ structure of leukocytes in blood cells of the sensitized nitroxolin underΒ conditions of toxicological experiment.Material and methods. A study of the population structure of bloodΒ leukocytes was carried out in sensitized nitroxoline and intact animals.Β Sensitization of guinea pigs was carried out by intradermalΒ injection of 200 ΞΌg (0.02 ml) of the drug into the outer surface ofΒ the ears. 10 days after the initial administration of the drug to theΒ animals, nitroxoline was injected intramuscularly in the proportions:Β 1:100, 1:1000. The degree of sensitization was assessed 24 hoursΒ after repeated administration of nitroxoline by visual inspection of the skin surface at the site of administration with the determinationΒ of the absolute and relative number of major populations leukocyteΒ cells and calculation of leukocyte indices.Results. In sensitized animals, a slight reddening with a diameterΒ of 2-3 mm was observed at the site of introduction of the sample atΒ 1:1000 dilution, redness and swelling in the dose of 1-100 with aΒ papule size of 3-6 mm. In blood, a 2-fold increase in the relative andΒ absolute number of basophilic granulocytes (p>0.05) and eosinophilsΒ (p<0.05), a decrease in the lymphocyte cell population (p<0.05), andΒ leukocyte indices: the ratio of neutrophils to eosinophils (p<0.05) and the ratio of lymphocytes to eosinophils (p<0.05). Conclusions. Nitroxolin exhibits allergenic properties: it causes redistribution of the spectrum of leukocyte cells with a disturbance of the dynamic equilibrium between them in the direction of the growth of the population of eosinophilic and basophilic granulocytes, a decrease in the number of lymphocytes. At the heart of the allergic reaction lies the pathophysiological IgE β dependent mechanism of development.Π¦Π΅Π»Ρ ΡΠ°Π±ΠΎΡΡ β ΠΈΠ·ΡΡΠΈΡΡ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΏΠΎΠΏΡΠ»ΡΡΠΈΠΎΠ½Π½ΠΎΠΉ ΡΡΡΡΠΊΡΡΡΡ Π»Π΅ΠΉΠΊΠΎΡΠΈΡΠΎΠ² ΠΊΡΠΎΠ²ΠΈ ΠΌΠΎΡΡΠΊΠΈΡ
ΡΠ²ΠΈΠ½ΠΎΠΊ ΡΠ΅Π½ΡΠΈΠ±ΠΈΠ»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
Π½ΠΈΡΡΠΎΠΊΡΠΎΠ»ΠΈΠ½ΠΎΠΌ Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ ΡΠΎΠΊΡΠΈΠΊΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°.ΠΠ°ΡΠ΅ΡΠΈΠ°Π» ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΠΎΠΏΡΠ»ΡΡΠΈΠΎΠ½Π½ΠΎΠΉ ΡΡΡΡΠΊΡΡΡΡΠ»Π΅ΠΉΠΊΠΎΡΠΈΡΠΎΠ² ΠΊΡΠΎΠ²ΠΈ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΎ Ρ ΡΠ΅Π½ΡΠΈΠ±ΠΈΠ»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
Π½ΠΈΡΡΠΎΠΊΡΠΎΠ»ΠΈΠ½ΠΎΠΌ ΠΈ ΠΈΠ½ΡΠ°ΠΊΡΠ½ΡΡ
ΠΆΠΈΠ²ΠΎΡΠ½ΡΡ
. Π‘Π΅Π½ΡΠΈΠ±ΠΈΠ»ΠΈΠ·Π°ΡΠΈΡ ΠΌΠΎΡΡΠΊΠΈΡ
ΡΠ²ΠΈΠ½ΠΎΠΊΒ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ ΠΏΡΡΠ΅ΠΌ Π²Π½ΡΡΡΠΈΠΊΠΎΠΆΠ½ΠΎΠ³ΠΎ Π²Π²Π΅Π΄Π΅Π½ΠΈΡ 200 ΠΌΠΊΠ³ (0,02 ΠΌΠ») ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΠΎΠ³ΠΎ Π²Π²Π΅Π΄Π΅Π½ΠΈΡ ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΠ° ΠΆΠΈΠ²ΠΎΡΠ½ΡΠΌ ΠΏΠΎΠ²ΡΠΎΡΠ½ΠΎ, Π²Π½ΡΡΡΠΈΠΊΠΎΠΆΠ½ΠΎ Π²Π²ΠΎΠ΄ΠΈΠ»ΠΈ Π½ΠΈΡΡΠΎΠΊΡΠΎΠ»ΠΈΠ½ Ρ ΠΏΡΠΎΠΏΠΎΡΡΠΈΡΡ
: 1:100, 1:1000. Π‘ΡΠ΅ΠΏΠ΅Π½Ρ ΡΠ΅Π½ΡΠΈΠ±ΠΈΠ»ΠΈΠ·Π°ΡΠΈΠΈ ΠΎΡΠ΅Π½ΠΈΠ²Π°Π»ΠΈ ΡΠ΅ΡΠ΅Π· 24 ΡΠ°ΡΠ° ΠΏΠΎΡΠ»Π΅ ΠΏΠΎΠ²ΡΠΎΡΠ½ΠΎΠ³ΠΎ Π²Π²Π΅Π΄Π΅Π½ΠΈΡ Π½ΠΈΡΡΠΎΠΊΡΠΎΠ»ΠΈΠ½Π° ΠΏΡΡΠ΅ΠΌ Π²ΠΈΠ·ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΎΡΠΌΠΎΡΡΠ° ΠΏΠΎΠ²Π΅Ρ
Π½ΠΎΡΡΠΈ ΠΊΠΎΠΆΠΈ Π½Π° ΠΌΠ΅ΡΡΠ΅ Π²Π²Π΅Π΄Π΅Π½ΠΈΡ ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΠ° Ρ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ΠΌ Π°Π±ΡΠΎΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΈ ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π° ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΠΏΠΎΠΏΡΠ»ΡΡΠΈΠΉ Π»Π΅ΠΉΠΊΠΎΡΠΈΡΠ°ΡΠ½ΡΡ
ΠΊΠ»Π΅ΡΠΎΠΊ ΠΈ ΡΠ°ΡΡΠ΅ΡΠ° Π»Π΅ΠΉΠΊΠΎΡΠΈΡΠ°ΡΠ½ΡΡ
ΠΈΠ½Π΄Π΅ΠΊΡΠΎΠ². Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. Π£ ΡΠ΅Π½ΡΠΈΠ±ΠΈΠ»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΠΆΠΈΠ²ΠΎΡΠ½ΡΡ
Π½Π° ΠΌΠ΅ΡΡΠ΅ Π²Π²Π΅Π΄Π΅Π½ΠΈΡ ΠΏΡΠΎΠ±Ρ Π² ΡΠ°Π·Π²Π΅Π΄Π΅Π½ΠΈΠΈ 1:1000 Π½Π°Π±Π»ΡΠ΄Π°Π»ΠΈ Π½Π΅Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ΅ ΠΏΠΎΠΊΡΠ°ΡΠ½Π΅Π½ΠΈΠ΅ Π΄ΠΈΠ°ΠΌΠ΅ΡΡΠΎΠΌ 2-3 ΠΌΠΌ, Π² Π΄ΠΎΠ·Π΅ 1 100 β ΠΏΠΎΠΊΡΠ°ΡΠ½Π΅Π½ΠΈΠ΅ ΠΈ ΠΎΡΠ΅ΠΊ Ρ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΏΠ°ΠΏΡΠ»Ρ ΡΠ°Π·ΠΌΠ΅ΡΠΎΠΌ 3-6 ΠΌΠΌ. Π ΠΊΡΠΎΠ²ΠΈ - ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ Π² 2 ΡΠ°Π·Π° ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈ Π°Π±ΡΠΎΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΡΠΈΡΠ»Π° Π±Π°Π·ΠΎΡΠΈΠ»ΡΠ½ΡΡ
Π³ΡΠ°Π½ΡΠ»ΠΎΡΠΈΡΠΎΠ² (Ρ>0,05) ΠΈ ΡΠΎΠ·ΠΈΠ½ΠΎΡΠΈΠ»ΠΎΠ² (Ρ<0,05), ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠ΅ ΠΏΠΎΠΏΡΠ»ΡΡΠΈΠΈ Π»ΠΈΠΌΡΠΎΡΠΈΡΠ°ΡΠ½ΡΡ
ΠΊΠ»Π΅ΡΠΎΠΊ (Ρ<0,05) ΠΈ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Π΅ΠΉ Π»Π΅ΠΉΠΊΠΎΡΠΈΡΠ°ΡΠ½ΡΡ
ΠΈΠ½Π΄Π΅ΠΊΡΠΎΠ²: ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠ΅ Π½Π΅ΠΉΡΡΠΎΡΠΈΠ»ΠΎΠ² ΠΊ ΡΠΎΠ·ΠΈΠ½ΠΎΡΠΈΠ»Π°ΠΌ (Ρ<0,05) ΠΈ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠ΅ Π»ΠΈΠΌΡΠΎΡΠΈΡΠΎΠ² ΠΊ ΡΠΎΠ·ΠΈΠ½ΠΎΡΠΈΠ»Π°ΠΌ (Ρ<0,05). ΠΡΠ²ΠΎΠ΄Ρ. ΠΠΈΡΡΠΎΠΊΡΠΎΠ»ΠΈΠ½ ΠΏΡΠΎΡΠ²Π»ΡΠ΅Ρ Π°Π»Π»Π΅ΡΠ³Π΅Π½Π½ΡΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π°: Π²ΡΠ·ΡΠ²Π°Π΅Ρ ΠΏΠ΅ΡΠ΅ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΡΠΏΠ΅ΠΊΡΡΠ° Π»Π΅ΠΉΠΊΠΎΡΠΈΡΠ°ΡΠ½ΡΡ
ΠΊΠ»Π΅ΡΠΎΠΊ Ρ Π½Π°ΡΡΡΠ΅Π½ΠΈΠ΅ΠΌ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠΈΡ ΠΌΠ΅ΠΆΠ΄Ρ Π½ΠΈΠΌΠΈ Π² ΡΡΠΎΡΠΎΠ½Ρ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΡ ΠΏΠΎΠΏΡΠ»ΡΡΠΈΠΈ ΡΠΎΠ·ΠΈΠ½ΠΎΡΠΈΠ»ΡΠ½ΡΡ
ΠΈ Π±Π°Π·ΠΎΡΠΈΠ»ΡΠ½ΡΡ
Π³ΡΠ°Π½ΡΠ»ΠΎΡΠΈΡΠΎΠ², ΡΠΌΠ΅Π½ΡΡΠ΅Π½ΠΈΠ΅ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π° Π»ΠΈΠΌΡΠΎΡΠΈΡΠΎΠ². Π ΠΎΡΠ½ΠΎΠ²Π΅ Π°Π»Π»Π΅ΡΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅Π°ΠΊΡΠΈΠΈ Π»Π΅ΠΆΠΈΡ ΠΏΠ°ΡΠΎΡΠΈΠ·ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠΉ Πg Π β Π·Π°Π²ΠΈΡΠΈΠΌΡΠΉ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌ ΡΠ°Π·Π²ΠΈΡΠΈΡ.ΠΠ΅ΡΠ° ΡΠΎΠ±ΠΎΡΠΈ β Π²ΠΈΠ²ΡΠΈΡΠΈ Π·ΠΌΡΠ½ΠΈ ΠΏΠΎΠΏΡΠ»ΡΡΡΠΉΠ½ΠΎΡ ΡΡΡΡΠΊΡΡΡΠΈ Π»Π΅ΠΉΠΊΠΎΡΠΈΡΡΠ² ΠΊΡΠΎΠ²Ρ Ρ ΠΌΡΡΡΠ°ΠΊΡΠ², ΡΠ΅Π½ΡΠΈΠ±ΡΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ
Π½ΡΡΡΠΎΠΊΡΠΎΠ»ΡΠ½ΠΎΠΌ Π² ΡΠΌΠΎΠ²Π°Ρ
Β ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π½Ρ ΡΠΎΠΊΡΠΈΠΊΠΎΠ»ΠΎΠ³ΡΡΠ½ΠΎΠ³ΠΎ Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΡ.ΠΠ°ΡΠ΅ΡΡΠ°Π» Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΈ. ΠΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΏΠΎΠΏΡΠ»ΡΡΡΠΉΠ½ΠΎΡ ΡΡΡΡΠΊΡΡΡΠΈ Π»Π΅ΠΉΠΊΠΎΡΠΈΡΡΠ² ΠΊΡΠΎΠ²Ρ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΎ Π² ΡΠ΅Π½ΡΠΈΠ±ΡΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ
Π½ΡΡΡΠΎΠΊΡΠΎΠ»ΡΠ½ΠΎΠΌ ΡΠ°Β ΡΠ½ΡΠ°ΠΊΡΠ½ΠΈΡ
ΡΠ²Π°ΡΠΈΠ½. Π‘Π΅Π½ΡΠΈΠ±ΡΠ»ΡΠ·Π°ΡΡΡ ΠΌΡΡΡΠ°ΠΊΡΠ² ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ ΡΠ»ΡΡ
ΠΎΠΌΒ Π²Π½ΡΡΡΡΡΠ½ΡΠΎΡΠΊΡΡΠ½ΠΎΠ³ΠΎ Π²Π²Π΅Π΄Π΅Π½Π½Ρ 200 ΠΌΠΊΠ³ (0,02 ΠΌΠ») ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΡ Π² Π·ΠΎΠ²Π½ΡΡΠ½Ρ ΠΏΠΎΠ²Π΅ΡΡ
Π½Ρ Π²ΡΡ
Π°. Π§Π΅ΡΠ΅Π· 10 Π΄Π½ΡΠ² ΠΏΡΡΠ»Ρ ΠΏΠ΅ΡΠ²ΠΈΠ½Π½ΠΎΠ³ΠΎ Π²Π²Π΅Π΄Π΅Π½Π½ΡΒ ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΡ ΡΠ²Π°ΡΠΈΠ½Π°ΠΌ ΠΏΠΎΠ²ΡΠΎΡΠ½ΠΎ, Π²Π½ΡΡΡΡΡΠ½ΡoΡΠΊΡΡΠ½ΠΎ Π²Π²ΠΎΠ΄ΠΈΠ»ΠΈΒ Π½ΡΡΡΠΎΠΊΡΠΎΠ»ΡΠ½ Ρ ΡΠΎΠ·Π²Π΅Π΄Π΅Π½Π½ΡΡ
: 1:100, 1:1000. Π‘ΡΡΠΏΡΠ½Ρ ΡΠ΅Π½ΡΠΈΠ±ΡΠ»ΡΠ·Π°ΡΡΡ ΠΎΡΡΠ½ΡΠ²Π°Π»ΠΈ ΡΠ΅ΡΠ΅Π· 24 Π³ΠΎΠ΄ΠΈΠ½ΠΈ ΠΏΡΡΠ»Ρ ΠΏΠΎΠ²ΡΠΎΡΠ½ΠΎΠ³ΠΎ Π²Π²Π΅Π΄Π΅Π½Π½Ρ Π½ΡΡΡΠΎΠΊΡΠΎΠ»ΡΠ½ΡΒ ΡΠ»ΡΡ
ΠΎΠΌ Π²ΡΠ·ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ oΠ³Π»ΡΠ΄Ρ ΠΏΠΎΠ²Π΅ΡΡ
Π½Ρ ΡΠΊΡΡΠΈ Π½Π° ΠΌΡΡΡΡ Π²Π²Π΅Π΄Π΅Π½Π½Ρ Π· Π²ΠΈΠ·Π½Π°ΡΠ΅Π½Π½ΡΠΌ Π°Π±ΡΠΎΠ»ΡΡΠ½ΠΎΡ ΡΠ° Π²ΡΠ΄Π½ΠΎΡΠ½ΠΎΡ ΠΊΡΠ»ΡΠΊΠΎΡΡΡ ΠΎΡΠ½ΠΎΠ²Π½ΠΈΡ
ΠΏΠΎΠΏΡΠ»ΡΡΡΠΉΒ Π»Π΅ΠΉΠΊΠΎΡΠΈΡΠ°ΡΠ½ΠΈΡ
ΠΊΠ»ΡΡΠΈΠ½ ΡΠ° ΡΠΎΠ·ΡΠ°Ρ
ΡΠ½ΠΊΡ Π»Π΅ΠΉΠΊΠΎΡΠΈΡΠ°ΡΠ½ΠΈΡ
ΡΠ½Π΄Π΅ΠΊΡΡΠ².Π Π΅Π·ΡΠ»ΡΡΠ°ΡΠΈ. Π£ ΡΠ΅Π½ΡΠΈΠ±ΡΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ
ΡΠ²Π°ΡΠΈΠ½ Π½Π° ΠΌΡΡΡΡ Π²Π²Π΅Π΄Π΅Π½Π½Ρ ΠΏΡΠΎΠ±ΠΈΒ Ρ ΡΠΎΠ·Π²Π΅Π΄Π΅Π½Π½Ρ 1:1000 ΡΠΏΠΎΡΡΠ΅ΡΡΠ³Π°Π»ΠΈ Π½Π΅Π·Π½Π°ΡΠ½Π΅ ΠΏΠΎΡΠ΅ΡΠ²ΠΎΠ½ΡΠ½Π½Ρ Π΄ΡΠ°ΠΌΠ΅ΡΡΠΎΠΌ 2-3 ΠΌΠΌ, Ρ Π΄ΠΎΠ·Ρ 1:100 β ΠΏΠΎΡΠ΅ΡΠ²ΠΎΠ½ΡΠ½Π½Ρ ΡΠ° Π½Π°Π±ΡΡΠΊ Π· ΡΡΠ²ΠΎΡΠ΅Π½Π½ΡΠΌΒ ΠΏΠ°ΠΏΡΠ»ΠΈ ΡΠΎΠ·ΠΌΡΡΠΎΠΌ 3-6 ΠΌΠΌ. Π£ ΠΊΡΠΎΠ²Ρ βΠ·Π±ΡΠ»ΡΡΠ΅Π½Π½Ρ Ρ 2 ΡΠ°Π·ΠΈ Π²ΡΠ΄Π½ΠΎΡΠ½ΠΎΠ³ΠΎΒ ΡΠ° Π°Π±ΡΠΎΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΡΠΈΡΠ»Π° Π±Π°Π·ΠΎΡΡΠ»ΡΠ½ΠΈΡ
Π³ΡΠ°Π½ΡΠ»ΠΎΡΠΈΡΡΠ² (Ρ>0,05) ΡΠ°Β Π΅ΠΎΠ·ΠΈΠ½ΠΎΡΡΠ»ΡΠ² (Ρ<0,05), Π·Π½ΠΈΠΆΠ΅Π½Π½Ρ ΠΏΠΎΠΏΡΠ»ΡΡΡΡ Π»ΡΠΌΡΠΎΡΠΈΡΠ°ΡΠ½ΠΈΡ
ΠΊΠ»ΡΡΠΈΠ½Β (Ρ<0,05) Ρ ΠΏΠΎΠΊΠ°Π·Π½ΠΈΠΊΡΠ² Π»Π΅ΠΉΠΊΠΎΡΠΈΡΠ°ΡΠ½ΠΈΡ
ΡΠ½Π΄Π΅ΠΊΡΡΠ²: ΡΠΏΡΠ²Π²ΡΠ΄Π½ΠΎΡΠ΅Π½Π½Ρ Π½Π΅ΠΉΡΡΠΎΡΡΠ»ΡΠ² Π΄ΠΎ Π΅ΠΎΠ·ΠΈΠ½ΠΎΡΡΠ»ΡΠ² (Ρ<0,05) ΡΠ° ΡΠΏΡΠ²Π²ΡΠ΄Π½ΠΎΡΠ΅Π½Π½Ρ Π»ΡΠΌΡΠΎΡΠΈΡΡΠ² Π΄ΠΎ Π΅ΠΎΠ·ΠΈΠ½ΠΎΡΡΠ»ΡΠ² (Ρ<0,05).ΠΠΈΡΠ½ΠΎΠ²ΠΊΠΈ. ΠΡΡΡΠΎΠΊΡΠΎΠ»ΡΠ½ ΠΏΡΠΎΡΠ²Π»ΡΡ Π°Π»Π΅ΡΠ³ΠΎΠ³Π΅Π½Π½Ρ Π²Π»Π°ΡΡΠΈΠ²ΠΎΡΡΡ: Π²ΠΈΠΊΠ»ΠΈΠΊΠ°Ρ ΠΏΠ΅ΡΠ΅ΡΠΎΠ·ΠΏΠΎΠ΄ΡΠ» ΡΠΏΠ΅ΠΊΡΡΠ° Π»Π΅ΠΉΠΊΠΎΡΠΈΡΠ°ΡΠ½ΠΈΡ
ΠΊΠ»ΡΡΠΈΠ½ ΡΠ· ΠΏΠΎΡΡΡΠ΅Π½Π½ΡΠΌ Π΄ΠΈΠ½Π°ΠΌΡΡΠ½ΠΎΡ ΡΡΠ²Π½ΠΎΠ²Π°Π³ΠΈ ΠΌΡΠΆ Π½ΠΈΠΌΠΈ Ρ Π±ΡΠΊ Π·ΡΠΎΡΡΠ°Π½Π½Ρ ΠΏΠΎΠΏΡΠ»ΡΡΡΡ Π΅ΠΎΠ·ΠΈΠ½ΠΎΡΡΠ»ΡΠ½ΠΈΡ
ΡΠ° Π±Π°Π·ΠΎΡΡΠ»ΡΠ½ΠΈΡ
Π³ΡΠ°Π½ΡΠ»ΠΎΡΠΈΡΡΠ², Π·ΠΌΠ΅Π½ΡΠ΅Π½Π½Ρ ΠΊΡΠ»ΡΠΊΠΎΡΡΡ Π»ΡΠΌΡΠΎΡΠΈΡΡΠ². Π ΠΎΡΠ½ΠΎΠ²Ρ Π°Π»Π΅ΡΠ³ΡΡΠ½ΠΎΡ ΡΠ΅Π°ΠΊΡΡΡ Π»Π΅ΠΆΠΈΡΡ ΠΏΠ°ΡΠΎΡΡΠ·ΡΠΎΠ»ΠΎΠ³ΡΡΠ½ΠΈΠΉ Πg Π β Π·Π°Π»Π΅ΠΆΠ½ΠΈΠΉ ΠΌΠ΅Ρ
Π°Π½ΡΠ·ΠΌ ΡΠΎΠ·Π²ΠΈΡΠΊΡ
Corrosion behavior of titanium oxynitrided by diffusion and magnetron sputtering methods in physiological solution
This work presents the study of the corrosion-electrochemical behavior of titanium alloy Grade 2 treated with combined coatingsβpresaturation with nitrogen diffusion layer by thermal-chemical treatment, oxygen diffusion layer by thermal-chemical treatment, and a titanium oxynitride (TiN x O y) coating deposited by magnetron sputteringβin physiological solution. Structural analysis has shown that TiN x O y can be represented as a face-centered cubic (fcc) structure in which nitrogen atoms are replaced by oxygen atoms, or oxygen atoms are replaced by nitrogen atoms. Presaturation of titanium Grade 2 with oxygen and nitrogen leads to the formation of TiN x O y with near equiatomic composition at subsequent oxynitriding by magnetron sputtering. Rutherford backscattering spectrometry (RBS) measurements show the homogeneity of the coating composition. The surface of titanium Grade 2 with a nitrogen diffusion layer presents the highest lightness factor and reflectivity in the range of the visible spectrum. Diffusion presaturation of titanium Grade 2 with either oxygen or nitrogen provides better adhesion of TiN x O y film to substrate. The presence of an oxygen diffusion layer leads to a stronger bond. It was found that a TiN x O y coating increases the corrosion resistance (isotonic solution of 0.9 % sodium chloride (NaCl)) 1.2 times as compared to a nontreated alloy. When the titanium alloy was presaturated with oxygen or nitrogen, the combination of the Physical Vapor Deposition (PVD) oxynitride coating and the diffusion layer, 50?m thick, assists in additional enhancement of corrosion properties 1.5 to 3 times.info:eu-repo/semantics/publishedVersio