5 research outputs found
ΠΠ·ΡΡΠ΅Π½ΠΈΠ΅ Π³Π΅ΠΌΠΎΡΠΎΠ²ΠΌΠ΅ΡΡΠΈΠΌΠΎΡΡΠΈ ΠΌΠ°Π³Π½ΠΈΡΠ½ΡΡ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ ΠΌΠ°Π³Π½Π΅ΡΠΈΡΠ° ΠΈ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ½ΡΡ ΡΠ°ΡΡΠΈΡ ΠΌΠ°Π³Π½Π΅ΡΠΈΡΠ°-ΠΊΡΠ΅ΠΌΠ½Π΅Π·Π΅ΠΌΠ° in vitro
The goal of the present research is to study the hemocompatibility of magnetic nanoparticles (MNPs)Β in model systems in vitro.Materials and methods. Magnetite nanoparticles and magnetite colloidal solutions were used in 0.9% NaCl in concentrations 0.2, 2.0 and 20.0 mg/ml. The study was performed with heparinized human whole blood, 1 ml of which was mixed with 1 of ml nanoparticles/physiological solution. Measurements were made directly after mixing, and then 1, 2.5 and 5 hours later. The amount of reactive oxygen species (ROS) was measured with luminol-dependent chemiluminiscence (CL). An erythrocyte aggregation index was calculated. For the assessment of hemolytic properties, a hemolysis coefficient was calculated based on optical density of the plasma. The nanoparticless surface protein layer investigation was performed with IR-Fourier spectroscopy.Results. Nanoparticles decline CL in timeand concentration-dependent manner. Erythrocyte aggregation stability grows, but concentration and/or application time increment leads to significant hemolysis. IR-Fourier spectroscopy data shows albumin as main component of protein crown, whose conformation changes in time.Given data proves safety of studied MNPs in relation to examined parameters in low (0.2 and 2.0 mg/ml) concentrations up to 2.5 hours interaction. This allows us to treat these MNPs as a promising agents for further use in medical practice after completing examinations related to other homeostasis indicators.Π¦Π΅Π»ΡΡ Π΄Π°Π½Π½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ²ΠΈΠ»ΠΎΡΡ ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ Π³Π΅ΠΌΠΎΡΠΎΠ²ΠΌΠ΅ΡΡΠΈΠΌΠΎΡΡΠΈ ΠΌΠ°Π³Π½ΠΈΡΠ½ΡΡ
Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ (ΠΠΠ§) Π² ΠΌΠΎΠ΄Π΅Π»ΡΠ½ΡΡ
ΡΠΈΡΡΠ΅ΠΌΠ°Ρ
in vitro.ΠΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. Π ΡΠ°Π±ΠΎΡΠ΅ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ ΠΊΠΎΠ»Π»ΠΎΠΈΠ΄Π½ΡΠ΅ ΡΠ°ΡΡΠ²ΠΎΡΡ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ ΠΌΠ°Π³Π½Π΅ΡΠΈΡΠ° (ΠΠΠ§1) ΠΈ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ½ΡΡ
ΡΠ°ΡΡΠΈΡ ΠΌΠ°Π³Π½Π΅ΡΠΈΡΠ°-ΠΊΡΠ΅ΠΌΠ½Π΅Π·Π΅ΠΌΠ° (ΠΠΠ§2) Π² 0,9%-ΠΌ ΡΠ°ΡΡΠ²ΠΎΡΠ΅ NaCl Π² ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΡΡ
0,2; 2,0 ΠΈ 20,0 ΠΌΠ³/ΠΌΠ». ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ Π½Π° Π³Π΅ΠΏΠ°ΡΠΈΠ½ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΉ ΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΊΡΠΎΠ²ΠΈ ΡΠ΅Π»ΠΎΠ²Π΅ΠΊΠ°, Π΄Π»Ρ ΡΠ΅Π³ΠΎΒ ΠΊ 1 ΠΌΠ» ΠΊΡΠΎΠ²ΠΈ Π΄ΠΎΠ±Π°Π²Π»ΡΠ»ΠΈ 1 ΠΌΠ» ΡΠ°ΡΡΠ²ΠΎΡΠ° Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ ΠΈΠ»ΠΈ ΡΠΈΠ·ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°ΡΡΠ²ΠΎΡΠ° (ΠΊΠΎΠ½ΡΡΠΎΠ»Ρ). ΠΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ Π½Π΅ΠΏΠΎΡΡΠ΅Π΄ΡΡΠ²Π΅Π½Π½ΠΎ ΠΏΠΎΡΠ»Π΅ ΠΏΡΠΈΠ³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΈΡ ΡΠΌΠ΅ΡΠΈ ΡΠ΅ΡΠ΅Π· 1; 2,5 ΠΈ 5 Ρ. ΠΠΎΠ»ΠΈΡΠ΅ΡΡΠ²ΠΎ Π°ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠΎΡΠΌ ΠΊΠΈΡΠ»ΠΎΡΠΎΠ΄Π° (ΠΠ€Π) Π΄Π΅ΡΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π»ΠΈ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΠΌΠ΅ΡΠΎΠ΄Π° Π»ΡΠΌΠΈΠ½ΠΎΠ»Π·Π°Π²ΠΈΡΠΈΠΌΠΎΠΉ Ρ
Π΅ΠΌΠΈΠ»ΡΠΌΠΈΠ½Π΅ΡΡΠ΅Π½ΡΠΈΠΈ (Π₯Π), Π²ΡΡΠΈΡΠ»ΡΠ»ΠΈ ΠΈΠ½Π΄Π΅ΠΊΡ Π°Π³ΡΠ΅Π³Π°ΡΠΈΠΈ ΡΡΠΈΡΡΠΎΡΠΈΡΠΎΠ², Π΄Π»Ρ ΠΎΡΠ΅Π½ΠΊΠΈ Π³Π΅ΠΌΠΎΠ»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ²ΠΎΠΉΡΡΠ² ΡΠ°ΡΡΡΠΈΡΡΠ²Π°Π»ΠΈ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½Ρ Π³Π΅ΠΌΠΎΠ»ΠΈΠ·Π° Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Π΅ΠΉ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΏΠ»ΠΎΡΠ½ΠΎΡΡΠΈ ΠΏΠ»Π°Π·ΠΌΡ, ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π±Π΅Π»ΠΊΠΎΠ²ΠΎΠ³ΠΎ ΡΠ»ΠΎΡ Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΠ»ΠΈ ΠΏΡΠΈ ΠΏΠΎΠΌΠΎΡΠΈ ΠΠ-Π€ΡΡΡΠ΅ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡΡ ΠΎΠ±ΠΎΠΈΡ
ΡΠΈΠΏΠΎΠ² Π² ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ 0,2 ΠΈ 20,0 ΠΌΠ³/ΠΌΠ» ΡΡΠΈΠ»ΠΈΠ²Π°ΡΡ Π₯Π Π½Π΅ΠΏΠΎΡΡΠ΅Π΄ΡΡΠ²Π΅Π½Π½ΠΎ ΠΏΠΎΡΠ»Π΅ Π²Π²Π΅Π΄Π΅Π½ΠΈΡ ΠΈ ΠΏΠΎΠ΄Π°Π²Π»ΡΡΡ Π΅Π΅ Π² Ρ
ΠΎΠ΄Π΅ ΠΈΠ½ΠΊΡΠ±Π°ΡΠΈΠΈ, ΠΏΡΠΈ ΡΡΠΎΠΌ ΡΡΡΠ΅ΠΊΡ ΡΡΠΈΠ»ΠΈΠ²Π°Π΅ΡΡΡ Ρ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ΠΌ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ ΠΈ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡΠ²ΠΈΡ. Π’Π°ΠΊΠΆΠ΅ ΠΎΡΠΌΠ΅ΡΠ΅Π½ΠΎ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ Π°Π³ΡΠ΅Π³Π°ΡΠΈΠΎΠ½Π½ΠΎΠΉ ΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΠΈ ΡΡΠΈΡΡΠΎΡΠΈΡΠΎΠ², ΠΎΠ΄Π½Π°ΠΊΠΎ Ρ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ΠΌ Π΄ΠΎΠ·Ρ ΠΈ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Π½Π°Π±Π»ΡΠ΄Π°Π»ΡΡ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΡΠΉ Π³Π΅ΠΌΠΎΠ»ΠΈΠ·. ΠΠ-Π€ΡΡΡΠ΅ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΡ ΠΏΠΎΠΊΠ°Π·Π°Π»Π° ΠΎΡΠ΅Π΄Π°Π½ΠΈΠ΅ Π°Π»ΡΠ±ΡΠΌΠΈΠ½Π° Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΠΠΠ§, ΠΊΠΎΡΠΎΡΡΠΉ ΠΌΠ΅Π½ΡΠ΅Ρ ΡΠ²ΠΎΡ ΠΊΠΎΠ½ΡΠΎΡΠΌΠ°ΡΠΈΡ Ρ ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ΠΌ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ.Π’Π°ΠΊΠΈΠΌ ΠΎΠ±ΡΠ°Π·ΠΎΠΌ, ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ Π΄Π°Π½Π½ΡΠ΅ ΡΠ²ΠΈΠ΄Π΅ΡΠ΅Π»ΡΡΡΠ²ΡΡΡ ΠΎ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΠΈ Π΄Π°Π½Π½ΡΡ
ΠΠΠ§ ΠΏΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π½ΡΠΌ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ°ΠΌ Π² Π½ΠΈΠ·ΠΊΠΈΡ
ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΡΡ
(0,2 ΠΈ 2,0 ΠΌΠ³/ΠΌΠ») ΠΏΡΠΈ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠΈ Π΄ΠΎ 2,5 Ρ. ΠΡΠΎ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°ΡΡ Π΄Π°Π½Π½ΡΠ΅ Π°Π³Π΅Π½ΡΡ ΠΊΠ°ΠΊ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΡΠ΅ ΡΡΠ΅Π΄ΡΡΠ²Π° Π΄Π»Ρ Π΄Π°Π»ΡΠ½Π΅ΠΉΡΠ΅Π³ΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Π² ΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΡΠΊΠΎΠΉ ΠΏΡΠ°ΠΊΡΠΈΠΊΠ΅ ΠΏΠΎΡΠ»Π΅ Π·Π°Π²Π΅ΡΡΠ΅Π½ΠΈΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ Π² ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠΈ Π΄ΡΡΠ³ΠΈΡ
ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Π΅ΠΉ Π³ΠΎΠΌΠ΅ΠΎΡΡΠ°Π·Π°
Hemocompatibility of magnetic magnethite nanoparticles and magnetite-silica composites in vitro
The goal of the present research is to study the hemocompatibility of magnetic nanoparticles (MNPs)Β in model systems in vitro.Materials and methods. Magnetite nanoparticles and magnetite colloidal solutions were used in 0.9% NaCl in concentrations 0.2, 2.0 and 20.0 mg/ml. The study was performed with heparinized human whole blood, 1 ml of which was mixed with 1 of ml nanoparticles/physiological solution. Measurements were made directly after mixing, and then 1, 2.5 and 5 hours later. The amount of reactive oxygen species (ROS) was measured with luminol-dependent chemiluminiscence (CL). An erythrocyte aggregation index was calculated. For the assessment of hemolytic properties, a hemolysis coefficient was calculated based on optical density of the plasma. The nanoparticless surface protein layer investigation was performed with IR-Fourier spectroscopy.Results. Nanoparticles decline CL in timeand concentration-dependent manner. Erythrocyte aggregation stability grows, but concentration and/or application time increment leads to significant hemolysis. IR-Fourier spectroscopy data shows albumin as main component of protein crown, whose conformation changes in time.Given data proves safety of studied MNPs in relation to examined parameters in low (0.2 and 2.0 mg/ml) concentrations up to 2.5 hours interaction. This allows us to treat these MNPs as a promising agents for further use in medical practice after completing examinations related to other homeostasis indicators