44 research outputs found
Spectroscopically Detected Formation of Oxygen Vacancies in Nano-Crystalline CeO2 β x
In this work the peculiarities of oxygen vacancies formation in cerium oxide nanoparticles for different external influences have been investigated by spectroscopic methods. The features of oxygen vacancies and therefore non-stoichiometric cerium oxide formation in CeO2 nanocrystals depending on the atmosphere of high temperature treatment were investigated. Stimulation of oxygen vacancies formation in reducing and neutral atmospheres was revealed. Occurrence of two different luminescence centers (viz. the charge-transfer complexes formed by Ce4 + and O2 β ions, and Ce3 + ions stabilized by vacancies) after cerium oxide nanoparticles annealing in a neutral atmosphere has been observed.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3094
Spectroscopically detected segregation of Pr3+ ions in Y2SiO5 nanocrystals
Segregation of Pr3+ ions in Y2SiO5:Pr3+ nanocrystals was revealed by means of spectroscopic techniques.
Increase of doped ions concentration in the near-surface layer of Y2SiO5:Pr3+ nanocrystals was confirmed
by modification of luminescence spectra with the heat treatment temperature. Relaxation of excess elastic
stresses created by Pr3+ ions with volumes greater than volume of regular Y3+ ion was determined to be the
main cause of observed effects. Theoretical estimations clearly confirm the preliminary predictions.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3543
Migration of Frenkel Excitons in PIC J-aggregates
Using luminescent exciton traps, an efficiency of the exciton migration in J-aggregates of pseudoisocyanine
dye in solutions has been investigated. Applying a modified Stern-Volmer equation for an analysis of
the J-aggregates luminescence quenching by the trap, the quenching of 50% of PIC J-aggregates luminescence
at the ratio PIC/trap = 70:1 has been found. To increase the exciton migration efficiency, the Jaggregate
structure was improved by the formation of a "J-aggregate-surfactantβ complex. It results in
35% enhancement of the exciton migration efficiency in PIC J-aggregates.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3509
Optically Detected Effect of Size on the Oxygen Vacancies Concentration in Cerium Oxide Nanocrystals
In this work effect of the size on the oxygen vacancies concentration in cerium oxide nanocrystals have been investigated by means of luminescence spectroscopy techniques. For determination of changes of oxygen stoichiometry intensity of 5d-4f luminescence of Ce3+ ions were used. It was shown that for CeO2 nanocrystals decrease of the size from 50 nm to 2 nm manifests itself in 8 times increase of the band intensity associated with vacancy-stabilized Ce3+ ions. The same effects have been observed at atmosphere variation from oxidizing to reducing and are connected with significant increase of concentration of oxygen vacancies. Obtained results allow to determine that decrease of the size stimulate formation of oxygen vacancies in cerium oxide nanocrystals
Migration of Frenkel Excitons in PIC J-aggregates
Using luminescent exciton traps, an efficiency of the exciton migration in J-aggregates of pseudoisocyanine
dye in solutions has been investigated. Applying a modified Stern-Volmer equation for an analysis of
the J-aggregates luminescence quenching by the trap, the quenching of 50% of PIC J-aggregates luminescence
at the ratio PIC/trap = 70:1 has been found. To increase the exciton migration efficiency, the Jaggregate
structure was improved by the formation of a "J-aggregate-surfactantβ complex. It results in
35% enhancement of the exciton migration efficiency in PIC J-aggregates.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3509
Spectroscopic Study of Cationic Carbocyanine Dye Binding to GdYVO4:Eu Nanoparticles
The interaction of the inorganic nanoparticles (GdYVO4:Eu, d 2 nm) and organic carbocyanine dye
3,3β -diethyloxa-carbocyanine iodide (DiOC2) has been studied spectrophotometrically. The formation of
complexes of dye molecules with spherical nanoparticles GdYVO4:Eu in aqueous solutions of cationic dye
DiOC2 was found. It is shown that nanoparticle GdYVO4:Eu can form a complex with 5-10 molecules of the
cationic dye DiOC2 which leads to the decrease in the intensity of the absorption and luminescence spectra
of the dye in aqueous solution.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3500
Features of low-temperature exciton dynamics in J-aggregates with topological disorder
It is shown on the basis of an analysis of the J-band shape, luminescence spectra, and luminescence decay that self-trapping of excitons takes place in J-aggregates with strong topological disorder. A self-trapping barrier must be overcome for this to occur. A microscopic model of the self-trapped state is presented
Newly synthesized carbocyanine fluorescent probes, their characteristics and behavior in proliferating cultures
Aim. To study possibile application of C2, C9, C18 and JC-1 carbocyanine fluorescent dyes for cell culture characterization. Methods. Morphological methods, fluorescence-activated cell sorting (FACS) analysis, luminescent microscopy were used. Results. The studied carbocyanine probes were shown to be preserved in dividing cells for at least 4 duplications. It was found that carbocyanine probe JC-1 did not transit from cell to cell under combined culturing of labeled and non-labeled cells. Conclusions. The paper covers the use of carbocyanine fluorescent probes for long-term culturing of cell lines. Probes C9 and JC-1 were optimal for the proliferative culture observation, allowing to trace mitochondrial functional state.Π¦Π΅Π»Ρ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΊΠ°ΡΠ±ΠΎΡΠΈΠ°Π½ΠΈΠ½ΠΎΠ²ΡΡ
ΡΠ»ΡΠΎΡΠ΅ΡΡΠ΅Π½ΡΠ½ΡΡ
Π·ΠΎΠ½Π΄ΠΎΠ² Π‘2, Π‘9, Π‘18 ΠΈ JC-1 Π΄Π»Ρ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΠΊΡΠ»ΡΡΡΡ ΠΊΠ»Π΅ΡΠΎΠΊ. ΠΠ΅ΡΠΎΠ΄Ρ. ΠΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈ- ΡΠ΅ΡΠΊΠΈΠ΅ ΠΌΠ΅ΡΠΎΠ΄Ρ, ΠΌΠ΅ΡΠΎΠ΄ ΠΏΡΠΎΡΠΎΡΠ½ΠΎΠΉ ΡΠΈΡΠΎΡΠ»ΡΠΎΡΠΈΠΌΠ΅ΡΡΠΈΠΈ (FACS- Π°Π½Π°Π»ΠΈΠ·), Π»ΡΠΌΠΈΠ½Π΅ΡΡΠ΅Π½ΡΠ½Π°Ρ ΠΌΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΡ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΈΡΡΠ»Π΅Π΄ΡΠ΅ΠΌΡΠ΅ ΠΊΠ°ΡΠ±ΠΎΡΠΈΠ°Π½ΠΈΠ½ΠΎΠ²ΡΠ΅ Π·ΠΎΠ½Π΄Ρ ΡΠΎΡ
ΡΠ°Π½ΡΡΡΡΡ Π² Π΄Π΅Π»ΡΡΠΈΡ
ΡΡ ΠΊΠ»Π΅ΡΠΊΠ°Ρ
Π² ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ Π½Π΅ ΠΌΠ΅Π½Π΅Π΅ ΡΠ΅ΡΡΡΠ΅Ρ
ΡΠ΄Π²ΠΎΠ΅Π½ΠΈΠΉ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΊΠ°ΡΠ±ΠΎΡΠΈΠ°Π½ΠΈΠ½ΠΎΠ²ΡΠΉ Π·ΠΎΠ½Π΄ JC-1 Π½Π΅ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄ΠΈΡ ΠΈΠ· ΠΊΠ»Π΅ΡΠΊΠΈ Π² ΠΊΠ»Π΅ΡΠΊΡ ΠΏΡΠΈ ΡΠΎΠ²ΠΌΠ΅ΡΡΠ½ΠΎΠΌ ΠΊΡΠ»ΡΡΠΈΠ²ΠΈΡΠΎΠ²Π°Π½ΠΈΠΈ ΠΌΠ΅ΡΠ΅Π½ΡΡ
ΠΈ Π½Π΅ΠΌΠ΅ΡΠ΅Π½ΡΡ
ΠΊΠ»Π΅ΡΠΎΠΊ ΡΠ°Π·Π½ΡΡ
ΠΊΡΠ»ΡΡΡΡ. ΠΡΠ²ΠΎΠ΄Ρ. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΎ, ΡΡΠΎ ΡΠΊΠ°Π·Π°Π½Π½ΡΠ΅ ΡΠ»ΡΠΎΡΠ΅ΡΡΠ΅Π½ΡΠ½ΡΠ΅ Π·ΠΎΠ½Π΄Ρ ΠΌΠΎΠΆΠ½ΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°ΡΡ ΠΏΡΠΈ Π΄ΠΎΠ»Π³ΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎΠΌ ΠΊΡΠ»ΡΡΠΈΠ²ΠΈΡΠΎΠ²Π°Π½ΠΈΠΈ ΠΊΠ»Π΅ΡΠΎΡΠ½ΡΡ
Π»ΠΈΠ½ΠΈΠΉ. ΠΠ»Ρ Π½Π°Π±Π»ΡΠ΄Π΅Π½ΠΈΡ Π·Π° ΠΏΡΠΎΠ»ΠΈΡΠ΅ΡΠΈΡΡΡΡΠΈΠΌΠΈ ΠΊΡΠ»ΡΡΡΡΠ°ΠΌΠΈ ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΡΠΌ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ Π·ΠΎΠ½Π΄ΠΎΠ² Π‘9 ΠΈ JC-1, ΡΡΠΎ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΠΎΡΡΠ»Π΅ΠΆΠΈΠ²Π°ΡΡ ΡΡΠ½ΠΊΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠ΅ ΡΠΎΡΡΠΎΡΠ½ΠΈΠ΅ ΠΌΠΈΡΠΎΡ
ΠΎΠ½Π΄ΡΠΈΠΉ.MΠ΅ΡΠ°. ΠΠΎΡΠ»ΡΠ΄ΠΈΡΠΈ ΠΌΠΎΠΆΠ»ΠΈΠ²ΠΎΡΡΡ Π·Π°ΡΡΠΎΡΡΠ²Π°Π½Π½Ρ ΠΊΠ°ΡΠ±ΠΎΡΡΠ°Π½ΡΠ½ΠΎΠ²ΠΈΡ
ΡΠ»ΡΠΎΡΠ΅ΡΡΠ΅Π½ΡΠ½ΠΈΡ
Π·ΠΎΠ½Π΄ΡΠ² Π‘2, Π‘9, Π‘18 ΡΠ° JC-1 Π΄Π»Ρ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΠΊΡΠ»ΡΡΡΡ ΠΊΠ»ΡΡΠΈΠ½. ΠΠ΅ΡΠΎΠ΄ΠΈ. ΠΠΈΠΊΠΎΡΠΈΡΡΠ°Π½ΠΎ ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΡΡΠ½Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΈ, ΠΌΠ΅ΡΠΎΠ΄ ΠΏΡΠΎΡΠΎΡΠ½ΠΎΡ ΡΠΈΡΠΎΡΠ»ΡΠΎΡΠΈΠΌΠ΅ΡΡΡΡ (FACS-Π°Π½Π°Π»ΡΠ·), Π»ΡΠΌΡΠ½Π΅ΡΡΠ΅Π½ΡΠ½Ρ ΠΌΡΠΊΡΠΎΡΠΊΠΎΠΏΡΡ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΠΈ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΠΎ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Ρ ΠΊΠ°ΡΠ±ΠΎΡΡΠ°Π½ΡΠ½ΠΎΠ²Ρ Π·ΠΎΠ½Π΄ΠΈ Π·Π±Π΅ΡΡΠ³Π°ΡΡΡΡΡ Π² ΠΊΠ»ΡΡΠΈΠ½Π°Ρ
, ΡΠΎ Π΄ΡΠ»ΡΡΡΡΡ, ΠΏΡΠΎΡΡΠ³ΠΎΠΌ Π½Π΅ ΠΌΠ΅Π½Ρ ΡΠΎΡΠΈΡΡΠΎΡ
ΠΏΠΎΠ΄Π²ΠΎΡΠ½Ρ. ΠΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΠΎ ΠΊΠ°ΡΠ±ΠΎΡΡΠ°Π½ΡΠ½ΠΎΠ²ΠΈΠΉ Π·ΠΎΠ½Π΄ JC-1 Π½Π΅ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄ΠΈΡΡ ΡΠ· ΠΊΠ»ΡΡΠΈΠ½ΠΈ Π² ΠΊΠ»ΡΡΠΈΠ½Ρ ΠΏΡΠΈ ΠΎΠ΄Π½ΠΎΡΠ°ΡΠ½ΠΎΠΌΡ ΠΊΡΠ»ΡΡΠΈΠ²ΡΠ²Π°Π½Π½Ρ ΠΌΡΡΠ΅Π½ΠΈΡ
Ρ Π½Π΅ΠΌΡΡΠ΅Π½ΠΈΡ
ΠΊΠ»ΡΡΠΈΠ½ ΡΡΠ·Π½ΠΈΡ
ΠΊΡΠ»ΡΡΡΡ. ΠΠΈΡΠ½ΠΎΠ²ΠΊΠΈ. ΠΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΠΎ Π·Π°Π·Π½Π°ΡΠ΅Π½Ρ ΡΠ»ΡΠΎΡΠ΅ΡΡΠ΅Π½ΡΠ½Ρ Π·ΠΎΠ½Π΄ΠΈ ΠΌΠΎΠΆΠ½Π° Π²ΠΈΠΊΠΎΡΠΈΡΡΠΎΠ²ΡΠ²Π°ΡΠΈ ΠΏΡΠΈ Π΄ΠΎΠ²Π³ΠΎΡΡΠΈΠ²Π°Π»ΠΎΠΌΡ ΠΊΡΠ»ΡΡΠΈΠ²ΡΠ²Π°Π½Π½Ρ ΠΊΠ»ΡΡΠΈΠ½Π½ΠΈΡ
Π»ΡΠ½ΡΠΉ. ΠΠ»Ρ ΡΠΏΠΎΡΡΠ΅ΡΠ΅ΠΆΠ΅Π½Π½Ρ Π·Π° ΠΏΡΠΎΠ»ΡΡΠ΅ΡΡΡΡΠΈΠΌΠΈ ΠΊΡΠ»ΡΡΡΡΠ°ΠΌΠΈ ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΠΈΠΌ Ρ Π·Π°ΡΡΠΎΡΡΠ²Π°Π½Π½Ρ Π·ΠΎΠ½Π΄ΡΠ² Π‘9 Ρ JC-1, ΡΠΎ Π΄ΠΎΠ·Π²ΠΎΠ»ΡΡ Π²ΡΠ΄ΡΠ»ΡΠ΄ΠΊΠΎΠ²ΡΠ²Π°ΡΠΈ ΡΡΠ½ΠΊΡΡΠΎΠ½Π°Π»ΡΠ½ΠΈΠΉ ΡΡΠ°Π½ ΠΌΡΡΠΎΡ
ΠΎΠ½Π΄ΡΡΠΉ
Dynamics of dye release from nanocarriers of different types in model cell membranes and living cells
Aim. To study the dynamics of lipophilic content release from nanocarriers of different types, organic molecular ensembles and inorganic nanoparticles (NPs) in vitro experiments. Methods. Two-channel ratiometric fluorescence detection method based on Forster Resonance Energy Transfer, fluorescent spectroscopy and micro-spectroscopy have been used. Results. It has been found that the profiles of lipophilic dyes release from organic nanocarriers (PC liposomes and SDS micelles) and inorganic ones (GdYVOβ:EuΒ³βΊ and CeOβ NPs) are well fitted by the first-order reaction kinetics in both model cell membranes and living cells (rat hepatocytes). The dye release constants (K) and half-lives (t1/2) were analyzed. Conclusions. GdYVOβ:EuΒ³βΊ and CeOβ NPs have been shown to provide faster lipophilic content release in model cell membranes as compared to PC liposomes. Negatively charged or lipophilic compounds added into nanocarriers can decrease the rate of lipophilic dyes release. Specific interaction of GdYVOβ:EuΒ³βΊ NPs with rat hepatocytes has been observed.ΠΠ΅ΡΠ°. ΠΠΈΠ²ΡΠ΅Π½Π½Ρ Π΄ΠΈΠ½Π°ΠΌΡΠΊΠΈ Π²ΠΈΠ»ΡΡΠ΅Π½Π½Ρ Π»ΡΠΏΠΎΡΠΈΠ»ΡΠ½ΠΎΠ³ΠΎ Π²ΠΌΡΡΡΡ Π· Π½Π°Π½ΠΎΠΊΠΎΠ½ΡΠ΅ΠΉΠ½Π΅ΡΡΠ² ΡΡΠ·Π½ΠΎΠ³ΠΎ ΡΠΈΠΏΡ, ΠΎΡΠ³Π°Π½ΡΡΠ½ΠΈΡ
ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΠΈΡ
Π°Π½ΡΠ°ΠΌΠ±Π»ΡΠ² Ρ Π½Π΅ΠΎΡΠ³Π°Π½ΡΡΠ½ΠΈΡ
Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΠ½ΠΎΠΊ (ΠΠ§) Π² Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Ρ
in vitro. ΠΠ΅ΡΠΎΠ΄ΠΈ. ΠΠ²ΠΎΠΊΠ°Π½Π°Π»ΡΠ½ΠΈΠΉ ΡΠ°ΡΡΠΎΠΌΠ΅ΡΡΠΈΡΠ½ΠΈΠΉ ΠΌΠ΅ΡΠΎΠ΄ ΡΠ΅ΡΡΡΡΠ°ΡΡΡ ΡΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΡΡΡ ΡΠ»ΡΠΎΡΠ΅ΡΡΠ΅Π½ΡΡΡ ΡΠ· Π·Π°ΡΡΠΎΡΡΠ²Π°Π½Π½ΡΠΌ Π±Π΅Π·Π²ΠΈΠΏΡΠΎΠΌΡΠ½ΡΠ²Π°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΏΠ΅ΡΠ΅Π½Π΅ΡΠ΅Π½Π½Ρ Π΅Π½Π΅ΡΠ³ΡΡ Π΅Π»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠ³ΠΎ Π·Π±ΡΠ΄ΠΆΠ΅Π½Π½Ρ, ΠΌΠ΅ΡΠΎΠ΄ ΡΠ»ΡΠΎΡΠ΅ΡΡΠ΅Π½ΡΠ½ΠΎΡ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΡΡ Ρ ΠΌΡΠΊΡΠΎΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΡΡ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΠΈ. ΠΠΈΠ²ΡΠ»ΡΠ½Π΅Π½Π½Ρ Π»ΡΠΏΠΎΡΠΈΠ»ΡΠ½ΡΡ
Π±Π°ΡΠ²Π½ΠΈΠΊΡΠ² Π· ΠΎΡΠ³Π°Π½ΡΡΠ½ΠΈΡ
(Π»ΡΠΏΠΎΡΠΎΠΌΠΈ Ρ ΠΌΡΡΠ΅Π»ΠΈ) Ρ Π½Π΅ΠΎΡΠ³Π°Π½ΡΡΠ½ΠΈΡ
(Π½Π° ΠΎΡΠ½ΠΎΠ²Ρ ΠΠ§ GdYVOβ:EuΒ³βΊ Ρ CeOβ) Π½Π°Π½ΠΎΠΊΠΎΠ½ΡΠ΅ΠΉΠ½Π΅ΡΡΠ² ΠΌΠΎΠΆΠ΅ Π±ΡΡΠΈ ΠΎΠΏΠΈΡΠ°Π½ΠΎ ΠΊΡΠ½Π΅ΡΠΈΡΠ½ΠΎΡ ΡΠ΅Π°ΠΊΡΡΡΡ ΠΏΠ΅ΡΡΠΎΠ³ΠΎ ΠΏΠΎΡΡΠ΄ΠΊΡ ΡΠΊ Ρ ΠΌΠΎΠ΄Π΅Π»ΡΠ½ΠΈΡ
ΠΊΠ»ΡΡΠΈΠ½Π½ΠΈΡ
ΠΌΠ΅ΠΌΠ±ΡΠ°Π½Π°Ρ
, ΡΠ°ΠΊ Ρ Π² ΠΆΠΈΠ²ΠΈΡ
ΠΊΠ»ΡΡΠΈΠ½Π°Ρ
. ΠΡΡΠΈΠΌΠ°Π½ΠΎ ΠΊΠΎΠ½ΡΡΠ°Π½ΡΠΈ ΡΠ²ΠΈΠ΄ΠΊΠΎΡΡΡ Π²ΠΈΠ²ΡΠ»ΡΠ½Π΅Π½Π½Ρ (K) Ρ ΡΠ°Ρ Π½Π°ΠΏΡΠ²Π²ΠΈΠ²Π΅Π΄Π΅Π½Π½Ρ (t1/2) Π±Π°ΡΠ²Π½ΠΈΠΊΡΠ². ΠΠΈΡΠ½ΠΎΠ²ΠΊΠΈ. ΠΠ°Π½ΠΎΠΊΠΎΠ½ΡΠ΅ΠΉΠ½Π΅ΡΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Ρ ΠΠ§ GdYVOβ:EuΒ³βΊ Ρ CeOβ Π·Π°Π±Π΅Π·ΠΏΠ΅ΡΡΡΡΡ ΡΠ²ΠΈΠ΄ΡΠ΅ Π²ΠΈΠ²ΡΠ»ΡΠ½Π΅Π½Π½Ρ Π»ΡΠΏΠΎΡΠΈΠ»ΡΠ½ΠΎΠ³ΠΎ Π²ΠΌΡΡΡΡ Π² ΠΌΠΎΠ΄Π΅Π»ΡΠ½ΠΈΡ
ΠΊΠ»ΡΡΠΈΠ½Π½ΠΈΡ
ΠΌΠ΅ΠΌΠ±ΡΠ°Π½Π°Ρ
ΠΏΠΎΡΡΠ²Π½ΡΠ½ΠΎ Π· Π»ΡΠΏΠΎΡΠΎΠΌΠ°ΠΌΠΈ. ΠΡΠΎΡΠ΅ Π΄ΠΎΠ΄Π°Π²Π°Π½Π½Ρ Π½Π΅Π³Π°ΡΠΈΠ²Π½ΠΎ Π·Π°ΡΡΠ΄ΠΆΠ΅Π½ΠΈΡ
Π°Π±ΠΎ Π»ΡΠΏΠΎΡΠΈΠ»ΡΠ½ΠΈΡ
ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ Ρ ΡΠΈΡΡΠ΅ΠΌΡ Π·Π½ΠΈΠΆΡΡ ΡΠ²ΠΈΠ΄ΠΊΡΡΡΡ Π²ΠΈΠ²ΡΠ»ΡΠ½Π΅Π½Π½Ρ Π±Π°ΡΠ²Π½ΠΈΠΊΡΠ². ΠΠΈΡΠ²Π»Π΅Π½ΠΎ ΡΠΏΠ΅ΡΠΈΡΡΡΠ½ΡΡΡΡ Π²Π·Π°ΡΠΌΠΎΠ΄ΡΡ ΠΠ§ GdYVOβ:EuΒ³βΊ Π· Π³Π΅ΠΏΠ°ΡΠΎΡΠΈΡΠ°ΠΌΠΈ ΡΡΡΡΠ².Π¦Π΅Π»Ρ. ΠΠ·ΡΡΠ΅Π½ΠΈΠ΅ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΈ Π²ΡΡΠ²ΠΎΠ±ΠΎΠΆΠ΄Π΅Π½ΠΈΡ Π»ΠΈΠΏΠΎΡΠΈΠ»ΡΠ½ΠΎΠ³ΠΎ ΡΠΎΠ΄Π΅ΡΠΆΠΈΠΌΠΎΠ³ΠΎ ΠΈΠ· Π½Π°Π½ΠΎΠΊΠΎΠ½ΡΠ΅ΠΉΠ½Π΅ΡΠΎΠ² ΡΠ°Π·Π»ΠΈΡΠ½ΠΎΠ³ΠΎ ΡΠΈΠΏΠ°, ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΡΡ
Π°Π½ΡΠ°ΠΌΠ±Π»Π΅ΠΉ ΠΈ Π½Π΅ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠΉ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ (ΠΠ§) Π² ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Ρ
in vitro. ΠΠ΅ΡΠΎΠ΄Ρ. ΠΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π»ΠΈ Π΄Π²ΡΠΊΠ°Π½Π°Π»ΡΠ½ΡΠΉ ΡΠ°ΡΠΈΠΎΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΌΠ΅ΡΠΎΠ΄ ΡΠ΅Π³ΠΈΡΡΡΠ°ΡΠΈΠΈ ΠΈΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΡΡΠΈ ΡΠ»ΡΠΎΡΠ΅ΡΡΠ΅Π½ΡΠΈΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π±Π΅Π·ΡΠ·Π»ΡΡΠ°ΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΏΠ΅ΡΠ΅Π½ΠΎΡΠ° ΡΠ½Π΅ΡΠ³ΠΈΠΈ ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠ³ΠΎ Π²ΠΎΠ·Π±ΡΠΆΠ΄Π΅Π½ΠΈΡ, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΌΠ΅ΡΠΎΠ΄ ΡΠ»ΡΠΎΡΠ΅ΡΡΠ΅Π½ΡΠ½ΠΎΠΉ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ ΠΈ ΠΌΠΈΠΊΡΠΎ- ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΡΡ
ΠΎΠ΄ Π»ΠΈΠΏΠΎΡΠΈΠ»ΡΠ½ΡΡ
ΠΊΡΠ°ΡΠΈΡΠ΅Π»Π΅ΠΉ ΠΈΠ· ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
(Π»ΠΈΠΏΠΎΡΠΎΠΌΡ ΠΈ ΠΌΠΈΡΠ΅Π»Π»Ρ) ΠΈ Π½Π΅ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
(Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΠ§ GdYVOβ:EuΒ³βΊ ΠΈ CeOβ) Π½Π°Π½ΠΎΠΊΠΎΠ½ΡΠ΅ΠΉΠ½Π΅ΡΠΎΠ² ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΎΠΏΠΈΡΠ°Π½ ΠΊΠΈΠ½Π΅ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅Π°ΠΊΡΠΈΠ΅ΠΉ ΠΏΠ΅ΡΠ²ΠΎΠ³ΠΎ ΠΏΠΎΡΡΠ΄ΠΊΠ° ΠΊΠ°ΠΊ Π² ΠΌΠΎΠ΄Π΅Π»ΡΠ½ΡΡ
ΠΊΠ»Π΅ΡΠΎΡΠ½ΡΡ
ΠΌΠ΅ΠΌΠ±ΡΠ°Π½Π°Ρ
, ΡΠ°ΠΊ ΠΈ Π² ΠΆΠΈΠ²ΡΡ
ΠΊΠ»Π΅ΡΠΊΠ°Ρ
. ΠΠΎΠ»ΡΡΠ΅Π½Ρ ΠΊΠΎΠ½ΡΡΠ°Π½ΡΡ ΡΠΊΠΎΡΠΎΡΡΠΈ Π²ΡΡΠ²ΠΎΠ±ΠΎΠΆΠ΄Π΅Π½ΠΈΡ (K) ΠΈ Π²ΡΠ΅ΠΌΡ ΠΏΠΎΠ»ΡΠ²ΡΠ²Π΅Π΄Π΅Π½ΠΈΡ (t1/2) ΠΊΡΠ°ΡΠΈΡΠ΅Π»Π΅ΠΉ. ΠΡΠ²ΠΎΠ΄Ρ. ΠΠ°Π½ΠΎΠΊΠΎΠ½ΡΠ΅ΠΉΠ½Π΅ΡΡ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΠ§ GdYVOβ:EuΒ³βΊ ΠΈ CeOβ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°ΡΡ Π±ΠΎΠ»Π΅Π΅ Π±ΡΡΡΡΠΎΠ΅ Π²ΡΡΠ²ΠΎΠ±ΠΎΠΆΠ΄Π΅Π½ΠΈΠ΅ Π»ΠΈΠΏΠΎΡΠΈΠ»ΡΠ½ΠΎΠ³ΠΎ ΡΠΎΠ΄Π΅ΡΠΆΠΈΠΌΠΎΠ³ΠΎ Π² ΠΌΠΎΠ΄Π΅Π»ΡΠ½ΡΡ
ΠΊΠ»Π΅ΡΠΎΡΠ½ΡΡ
ΠΌΠ΅ΠΌΠ±ΡΠ°Π½Π°Ρ
ΠΏΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ Ρ Π»ΠΈΠΏΠΎΡΠΎΠΌΠ°ΠΌΠΈ. ΠΠ΄Π½Π°ΠΊΠΎ Π΄ΠΎΠ±Π°Π²Π»Π΅Π½ΠΈΠ΅ ΠΎΡΡΠΈΡΠ°ΡΠ΅Π»ΡΠ½ΠΎ Π·Π°ΡΡΠΆΠ΅Π½Π½ΡΡ
ΠΈΠ»ΠΈ Π»ΠΈΠΏΠΎΡΠΈΠ»ΡΠ½ΡΡ
ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ Π² ΡΠΈΡΡΠ΅ΠΌΡ ΡΠ½ΠΈΠΆΠ°Π°Π΅Ρ ΡΠΊΠΎΡΠΎΡΡΡ Π²ΡΡΠ²ΠΎΠ±ΠΎΠΆΠ΄Π΅Π½ΠΈΡ ΠΊΡΠ°ΡΠΈΡΠ΅Π»Π΅ΠΉ. ΠΠ±Π½Π°ΡΡΠΆΠ΅Π½Π° ΡΠΏΠ΅ΡΠΈΡΠΈΡΠ½ΠΎΡΡΡ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ ΠΠ§ GdYVOβ:EuΒ³βΊ Ρ Π³Π΅ΠΏΠ°ΡΠΎΡΠΈΡΠ°ΠΌΠΈ ΠΊΡΡΡ
Effect of inorganic nanoparticles and organic complexes on their basis on free-radical processes in some model systems
Aim. Evaluation of freeβradical activity of rareβearth based nanoparticles (NPs) (orthovanadates and CeO2) with different geometrical parameters, and organic complexes formed on their base with methylene blue (MB) photodynamic dye in abiotic and biotic systems (homogenate of liver, isolated mitochondria and isolated hepatocytes). Methods. Effects of NPs were estimated using luminol-dependent chemiluminescence (ChL) and by measurement of the final product of lipid peroxidation β malondialdehyde (MDA). Results. According to the ChL data in abiotic systems all NPs demonstrated antiradical activity. In biotic systems spherical extra small (1β2 nm) NPs of both types showed prooxidant effects of different degree; CeO2 of 8β10 nm have demonstrated a week antioxidant effect. The data of ChL correlated with the measurements of MDA-level. The effects of Β«NP-MBΒ» complexes were the same as the corresponding Β«bareΒ» NPs in different examined systems. The most prooxidant NPs in the presence of glutathione (GSH) did not aggravate free-radical processes. NPs demonstrated a more pronounced prooxidant effect in cells at pH 7.8 that may be a result of pH-dependent changes in protonated GSH. Conclusions. Differences in the effects of NPs in the biotic systems depend on their geometric parameters that determine their penetration and interaction with the cellular structures. This is also related to the processes on the NPs surface as well as in the near-surface layers.ΠΠ΅ΡΠ°. ΠΡΡΠ½ΠΈΡΠΈ Π²ΡΠ»ΡΠ½ΠΎΡΠ°Π΄ΠΈΠΊΠ°Π»ΡΠ½Ρ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΠ½ΠΎΠΊ (ΠΠ§) Π½Π° ΠΎΡΠ½ΠΎΠ²Ρ ΡΡΠ΄ΠΊΡΡΠ½ΠΎΠ·Π΅ΠΌΠ΅Π»ΡΠ½ΠΈΡ
Π΅Π»Π΅ΠΌΠ΅Π½ΡΡΠ² β ΠΎΡΡΠΎΠ²Π°Π½Π°Π΄Π°ΡΡΠ² ΡΠ° Π‘Π΅Π2 Π· ΡΡΠ·Π½ΠΈΠΌΠΈ Π³Π΅ΠΎΠΌΠ΅ΡΡΠΈΡΠ½ΠΈΠΌΠΈ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ°ΠΌΠΈ Ρ ΠΎΡΠ³Π°Π½ΡΡΠ½ΠΈΡ
ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΡΠ² Π½Π° ΡΡ
ΠΎΡΠ½ΠΎΠ²Ρ Π· ΡΠΎΡΠΎΠ΄ΠΈΠ½Π°ΠΌΡΡΠ½ΠΈΠΌ Π±Π°ΡΠ²Π½ΠΈΠΊΠΎΠΌ ΠΌΠ΅ΡΠΈΠ»Π΅Π½ΠΎΠ²ΠΈΠΌ Π±Π»Π°ΠΊΠΈΡΠ½ΠΈΠΌ (ΠΠ) Π² Π°Π±ΡΠΎΡΠΈΡΠ½ΠΈΡ
Ρ Π±ΡΠΎΡΠΈΡΠ½ΠΈΡ
ΡΠΈΡΡΠ΅ΠΌΠ°Ρ
(Π³ΠΎΠΌΠΎΠ³Π΅Π½Π°Ρ ΠΏΠ΅ΡΡΠ½ΠΊΠΈ, ΡΠ·ΠΎΠ»ΡΠΎΠ²Π°Π½Ρ ΠΌΡΡΠΎΡ
ΠΎΠ½Π΄ΡΡΡ, ΡΠ·ΠΎΠ»ΡΠΎΠ²Π°Π½Ρ Π³Π΅ΠΏΠ°ΡΠΎΡΠΈΡΠΈ). ΠΠ΅ΡΠΎΠ΄ΠΈ. ΠΡΠ΅ΠΊΡΠΈ ΠΠ§ ΠΎΡΡΠ½ΡΠ²Π°Π»ΠΈ Π·Π° Π΄ΠΎΠΏΠΎΠΌΠΎΠ³ΠΎΡ Π»ΡΠΌΡΠ½ΠΎΠ»-Π·Π°Π»Π΅ΠΆΠ½ΠΎΡ Ρ
Π΅ΠΌΡΠ»ΡΠΌΡΠ½Π΅ΡΡΠ΅Π½ΡΡΡ (Π₯Π), Π° ΡΠ°ΠΊΠΎΠΆ Π²ΠΈΠΌΡΡΡΡΡΠΈ ΡΡΠ²Π΅Π½Ρ ΠΌΠ°Π»ΠΎΠ½ΠΎΠ²ΠΎΠ³ΠΎ Π΄ΠΈΠ°ΒΠ»ΡΠ΄Π΅Π³ΡΠ΄Ρ (ΠΠΠ) β ΠΊΡΠ½ΡΠ΅Π²ΠΎΠ³ΠΎ ΠΏΡΠΎΠ΄ΡΠΊΡΡ ΠΏΠ΅ΡΠΎΠΊΡΠΈΠ΄Π°ΡΡΡ Π»ΡΠΏΡΠ΄ΡΠ². Π Π΅Π·ΡΠ»ΡΡΠ°ΡΠΈ. Π₯Π ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΠΎ Π² Π°Π±ΡΠΎΡΠΈΡΠ½ΡΠΉ ΡΠΈΡΡΠ΅ΠΌΡ Π²ΡΡ ΠΠ§ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΡΡΡΡ Π°Π½ΡΠΈΡΠ°Π΄ΠΈΠΊΠ°Π»ΡΠ½Ρ Π°ΠΊΡΠΈΠ²Π½ΡΡΡΡ. Π Π±ΡΠΎΡΠΈΡΠ½ΡΠΉ ΡΠΈΡΡΠ΅ΠΌΡ ΡΡΠ΅ΡΠΈΡΠ½Ρ Π΅ΠΊΡΡΡΠ°ΠΌΠ°Π»Ρ (1β2 Π½ΠΌ) ΠΠ§ ΠΎΠ±ΠΎΡ
ΡΠΈΠΏΡΠ² ΡΡΠ·Π½ΠΎΡ ΠΌΡΡΠΎΡ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΡΡΡΡ ΠΏΡΠΎΠΎΠΊΡΠΈΠ΄Π°Π½ΡΠ½Ρ Π°ΠΊΡΠΈΠ²Π½ΡΡΡΡ; Π‘Π΅Π2 ΡΠΎΠ·ΠΌΡΡΠΎΠΌ 8β10 Π½ΠΌ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΡΠ²Π°Π² ΡΠ»Π°Π±ΠΊΡΠΉ Π°Π½ΡΠΈΠΎΠΊΡΠΈΠ΄Π°Π½ΡΠ½ΡΠΉ Π΅ΡΠ΅ΠΊΡ. ΠΠ°Π½Ρ Π₯Π ΠΊΠΎΡΠ΅Π»ΡΡΡΡ Π· ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌΠΈ, ΠΎΡΡΠΈΠΌΠ°Π½ΠΈΠΌΠΈ ΠΏΡΠΈ Π²ΠΈΠΌΡΡΡΠ²Π°Π½Π½Ρ ΡΡΠ²Π½Ρ ΠΠΠ. ΠΡΠ΅ΠΊΡ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΡΠ² Β«ΠΠ§-ΠΠΒ» Π±ΡΠ² ΡΠ°ΠΊΠΈΠΌ ΠΆΠ΅, ΡΠΊ Ρ Ρ Π²ΠΈΠΏΠ°Π΄ΠΊΡ Β«Π³ΠΎΠ»ΠΈΡ
Β» ΠΠ§. ΠΠ°ΠΉΠ±ΡΠ»ΡΡ ΠΏΡΠΎΠΎΠΊΡΠΈΠ΄Π°Π½ΡΠ½Ρ ΠΠ§Ρ ΠΏΡΠΈΡΡΡΠ½ΠΎΡΡΡ Π³Π»ΡΡΠ°ΡΡΠΎΠ½Ρ (GSH) Π½Π΅ ΠΏΠΎΡΠΈΠ»ΡΠ²Π°Π»ΠΈ Π²ΡΠ»ΡΠ½ΠΎ-ΡΠ°Π΄ΠΈΠΊΠ°Π»ΡΠ½Ρ ΠΏΡΠΎΡΠ΅ΡΠΈ. Π ΠΊΠ»ΡΡΠΈΠ½Π°Ρ
ΠΏΡΠΈ pH = 7.8 ΠΠ§ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΡΠ²Π°Π»ΠΈ ΠΎΡΡΠΊΡΠ²Π°Π½Ρ ΠΏΡΠΎΠΎΠΊΡΠΈΠ΄Π°Π½ΡΠ½Ρ Π΅ΡΠ΅ΠΊΡΠΈ, ΡΠΎ ΠΌΠΎΠΆΠ΅ Π±ΡΡΠΈ ΠΏΠΎΠ²βΡΠ·Π°Π½ΠΎ Π· pH-Π·Π°Π»Π΅ΠΆΠ½ΠΈΠΌΠΈ Π·ΠΌΡΠ½Π°ΠΌΠΈ ΠΏΡΠΎΡΠΎΠ½ΠΎΠ²Π°Π½ΠΎΠ³ΠΎ GSH. ΠΠΈΡΠ½ΠΎΠ²ΠΊΠΈ. ΠΡΠ΄ΠΌΡΠ½Π½ΠΎΡΡΡ Π΅ΡΠ΅ΠΊΡΡΠ² ΠΠ§ ΠΏΠΎΡΡΠ½ΡΡΡΡΡΡ ΡΡ
Π³Π΅ΠΎΠΌΠ΅ΡΡΠΈΡΠ½ΠΈΠΌΠΈ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ°ΠΌΠΈ, ΡΠΊΡ Π²ΠΏΠ»ΠΈΠ²Π°ΡΡΡ Π½Π° ΠΏΡΠΎΠ½ΠΈΠΊΠ½Π΅Π½Π½Ρ Ρ Π²Π·Π°ΡΠΌΠΎΠ΄ΡΡ ΡΠ°ΡΡΠΈΠ½ΠΎΠΊ Π· ΠΊΠ»ΡΡΠΈΠ½Π½ΠΈΠΌΠΈ ΡΡΡΡΠΊΡΡΡΠ°ΠΌΠΈ. Π’Π°ΠΊΠΎΠΆ ΡΠ΅ ΠΏΠΎΠ²'ΡΠ·Π°Π½ΠΎ Π· ΠΏΡΠΎΡΠ΅ΡΠ°ΠΌΠΈ, ΡΠΎ ΠΏΡΠΎΡ
ΠΎΠ΄ΡΡΡ ΡΠΊ Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½Ρ ΠΠ§, ΡΠ°ΠΊ Ρ Π² ΠΏΡΠΈΠΏΠΎΠ²Π΅ΡΡ
Π½Π΅Π²ΠΎΠΌΡ ΡΠ°ΡΡ.Π¦Π΅Π»Ρ. ΠΡΠ΅Π½ΠΈΡΡ ΡΠ²ΠΎΠ±ΠΎΠ΄Π½ΠΎΡΠ°Π΄ΠΈΠΊΠ°Π»ΡΠ½ΡΡ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ (ΠΠ§) Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΠ΅Π΄ΠΊΠΎΠ·Π΅ΠΌΠ΅Π»ΡΠ½ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ² β ΠΎΡΡΠΎΠ²Π°Π½Π°Π΄Π°ΡΠΎΠ² ΠΈ Π‘Π΅Π2 Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠΌ Π³Π΅ΠΎΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ°ΠΌΠΈ ΠΈ ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠΎΠ² Π½Π° ΠΈΡ
ΠΎΡΠ½ΠΎΠ²Π΅ Ρ ΡΠΎΡΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΠΌ ΠΊΡΠ°ΡΠΈΡΠ΅Π»Π΅ΠΌ ΠΌΠ΅ΡΠΈΠ»Π΅Π½ΠΎΠ²ΡΠΌ Π³ΠΎΠ»ΡΠ±ΡΠΌ (ΠΠ) Π² Π°Π±ΠΈΠΎΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈ Π±ΠΈΠΎΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΈΡΡΠ΅ΠΌΠ°Ρ
(Π³ΠΎΠΌΠΎΠ³Π΅Π½Π°Ρ ΠΏΠ΅ΡΠ΅Π½ΠΈ, ΠΈΠ·ΠΎΠ»ΠΈΡΠΎΠ²Π°Π½Π½ΡΠ΅ ΠΌΠΈΡΠΎΡ
ΠΎΠ½Π΄ΡΠΈΠΈ, ΠΈΠ·ΠΎΠ»ΠΈΡΠΎΠ²Π°Π½Π½ΡΠ΅ Π³Π΅ΠΏΠ°ΡΠΎΡΠΈΡΡ). ΠΠ΅ΡΠΎΠ΄Ρ. ΠΡΡΠ΅ΠΊΡΡ ΠΠ§ ΠΎΡΠ΅Π½ΠΈΠ²Π°Π»ΠΈ Ρ ΠΏΠΎΠΌΠΎΡΡΡ Π»ΡΠΌΠΈΠ½ΠΎΠ»-Π·Π°Π²ΠΈΡΠΈΠΌΠΎΠΉ Ρ
Π΅ΠΌΠΈΠ»ΡΠΌΠΈΠ½Π΅ΡΡΠ΅Π½ΡΠΈΠΈ (Π₯Π), Π° ΡΠ°ΠΊΠΆΠ΅ ΠΈΠ·ΠΌΠ΅ΡΡΡ ΡΡΠΎΠ²Π΅Π½Ρ ΠΌΠ°Π»ΠΎΠ½ΠΎΠ²ΠΎΠ³ΠΎ Π΄ΠΈΠ°Π»ΡΠ΄Π΅Π³ΠΈΠ΄Π° (ΠΠΠ) β ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΠ΄ΡΠΊΡΠ° ΠΏΠ΅ΡΠΎΠΊΡΠΈΠ΄Π°ΡΠΈΠΈ Π»ΠΈΠΏΠΈΠ΄ΠΎΠ². Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. Π₯Π Π±ΡΠ»ΠΎ ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Π² Π°Π±ΠΈΠΎΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΠ΅ Π²ΡΠ΅ ΠΠ§ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΡΡΡ Π°Π½ΡΠΈΡΠ°Π΄ΠΈΠΊΠ°Π»ΡΠ½ΡΡ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ. Π Π±ΠΈΠΎΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΠ΅ ΡΡΠ΅ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠΊΡΡΡΠ°ΠΌΠ°Π»ΡΠ΅ (1β2 Π½ΠΌ) ΠΠ§ ΠΎΠ±ΠΎΠΈΡ
ΡΠΈΠΏΠΎΠ² Π² ΡΠ°Π·Π½ΠΎΠΉ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΡΡΡ ΠΏΡΠΎΠΎΠΊΡΠΈΠ΄Π°Π½ΡΠ½ΡΡ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ; Π‘Π΅Π2 ΡΠ°Π·ΠΌΠ΅ΡΠΎΠΌ 8β10 Π½ΠΌ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΡΠ΅Ρ ΡΠ»Π°Π±ΡΠΉ Π°Π½ΡΠΈΠΎΠΊΡΠΈΠ΄Π°Π½ΡΠ½ΡΠΉ ΡΡΡΠ΅ΠΊΡ. ΠΠ°Π½Π½ΡΠ΅ Π₯Π ΠΊΠΎΡΡΠ΅Π»ΠΈΡΡΡΡ Ρ Π΄Π°Π½Π½ΡΠΌΠΈ, ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΠΌΠΈ ΠΏΡΠΈ ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΠΈ ΡΡΠΎΠ²Π½Ρ ΠΠΠ. ΠΡΡΠ΅ΠΊΡ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠΎΠ² Β«ΠΠ§-ΠΠΒ» Π±ΡΠ» ΡΠ°ΠΊΠΈΠΌ ΠΆΠ΅, ΠΊΠ°ΠΊ ΠΈ Π² ΡΠ»ΡΡΠ°Π΅ Β«Π³ΠΎΠ»ΡΡ
Β» ΠΠ§. ΠΠ°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΠΏΡΠΎΠΎΠΊΡΠΈΠ΄Π°Π½ΡΠ½ΡΠ΅ ΠΠ§ Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ Π³Π»ΡΡΠ°ΡΠΈΠΎΠ½Π° (GSH) Π½Π΅ ΡΡΡΠ³ΡΠ±Π»ΡΠ»ΠΈ ΡΠ²ΠΎΠ±ΠΎΠ΄Π½ΠΎ-ΡΠ°Π΄ΠΈΠΊΠ°Π»ΡΠ½ΡΠ΅ ΠΏΡΠΎΡΠ΅ΡΡΡ. Π ΠΊΠ»Π΅ΡΠΊΠ°Ρ
ΠΏΡΠΈ pH = 7.8 ΠΠ§ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΠΎΠ²Π°Π»ΠΈ ΠΎΠΆΠΈΠ΄Π°Π΅ΠΌΡΠ΅ ΠΏΡΠΎΠΎΠΊΡΠΈΠ΄Π°Π½ΡΠ½ΡΠ΅ ΡΡΡΠ΅ΠΊΡΡ, ΡΡΠΎ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΡΠ²ΡΠ·Π°Π½ΠΎ Ρ pH-Π·Π°Π²ΠΈΡΠΈΠΌΡΠΌΠΈ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡΠΌΠΈ ΠΏΡΠΎΡΠ½ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ GSH. ΠΡΠ²ΠΎΠ΄Ρ. Π Π°Π·Π»ΠΈΡΠΈΡ ΡΡΡΠ΅ΠΊΡΠΎΠ² ΠΠ§ ΠΎΠ±ΡΡΡΠ½ΡΡΡΡΡ ΠΈΡ
Π³Π΅ΠΎΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ°ΠΌΠΈ, ΠΊΠΎΡΠΎΡΡΠ΅ Π²Π»ΠΈΡΡΡ Π½Π° ΠΏΡΠΎΠ½ΠΈΠΊΠ½ΠΎΠ²Π΅Π½ΠΈΠ΅ ΠΈ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ ΡΠ°ΡΡΠΈΡ Ρ ΠΊΠ»Π΅ΡΠΎΡΠ½ΡΠΌΠΈ ΡΡΡΡΠΊΡΡΡΠ°ΠΌΠΈ. Π’Π°ΠΊΠΆΠ΅ ΡΡΠΎ ΡΠ²ΡΠ·Π°Π½ΠΎ Ρ ΠΏΡΠΎΡΠ΅ΡΡΠ°ΠΌΠΈ, ΠΏΡΠΎΡ
ΠΎΠ΄ΡΡΠΈΠΌΠΈ ΠΊΠ°ΠΊ Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΠΠ§, ΡΠ°ΠΊ ΠΈ Π² ΠΏΡΠΈΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ½ΠΎΠΌ ΡΠ»ΠΎΠ΅