Rheological quantification of liposomes aggregation
Само за регистроване кориснике
2005
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Aim. The aggregation of phospholipid vesicles (liposomes) in water is analyzed experimentally and theoretically and compared with the well-examined alumina dispersions. The steady-state aggregation followed rheologically for various volume fractions of particles and shear rates. Methods. A micro-rheological model of aggregating dispersions is proposed in which the apparent viscosity is estimated as the sum of hydrodynamic and structural parts, which are correlated with system structural ordering. Langevin equation is used to describe the dynamics of evolution of steady-states of liposome systems in phase space, for various shear rates. Results. These results established a link between the local dynamics of liposome dispersions and their flow behavior. Conclusion. Aggregates become more compact and embedded higher volume of fluid when shear rate increases. Hydrodynamic part of viscosity increases, while structural part of viscosity decreases with shear rate. Calculated value of bond ene...rgy between liposomes corresponds to hydrogen bond energy.
Кључне речи:
micro-rheology / liposomes / aggregation / hydrogen bond energyИзвор:
Minerva Biotecnologica, 2005, 17, 4, 245-249Издавач:
- Edizioni Minerva Medica, Turin
Институција/група
Poljoprivredni fakultetTY - JOUR AU - Pajić-Lijaković, Ivana AU - Bugarski, Branko AU - Nedović, Viktor AU - Plavsić, M. PY - 2005 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/1102 AB - Aim. The aggregation of phospholipid vesicles (liposomes) in water is analyzed experimentally and theoretically and compared with the well-examined alumina dispersions. The steady-state aggregation followed rheologically for various volume fractions of particles and shear rates. Methods. A micro-rheological model of aggregating dispersions is proposed in which the apparent viscosity is estimated as the sum of hydrodynamic and structural parts, which are correlated with system structural ordering. Langevin equation is used to describe the dynamics of evolution of steady-states of liposome systems in phase space, for various shear rates. Results. These results established a link between the local dynamics of liposome dispersions and their flow behavior. Conclusion. Aggregates become more compact and embedded higher volume of fluid when shear rate increases. Hydrodynamic part of viscosity increases, while structural part of viscosity decreases with shear rate. Calculated value of bond energy between liposomes corresponds to hydrogen bond energy. PB - Edizioni Minerva Medica, Turin T2 - Minerva Biotecnologica T1 - Rheological quantification of liposomes aggregation EP - 249 IS - 4 SP - 245 VL - 17 UR - https://hdl.handle.net/21.15107/rcub_agrospace_1102 ER -
@article{ author = "Pajić-Lijaković, Ivana and Bugarski, Branko and Nedović, Viktor and Plavsić, M.", year = "2005", abstract = "Aim. The aggregation of phospholipid vesicles (liposomes) in water is analyzed experimentally and theoretically and compared with the well-examined alumina dispersions. The steady-state aggregation followed rheologically for various volume fractions of particles and shear rates. Methods. A micro-rheological model of aggregating dispersions is proposed in which the apparent viscosity is estimated as the sum of hydrodynamic and structural parts, which are correlated with system structural ordering. Langevin equation is used to describe the dynamics of evolution of steady-states of liposome systems in phase space, for various shear rates. Results. These results established a link between the local dynamics of liposome dispersions and their flow behavior. Conclusion. Aggregates become more compact and embedded higher volume of fluid when shear rate increases. Hydrodynamic part of viscosity increases, while structural part of viscosity decreases with shear rate. Calculated value of bond energy between liposomes corresponds to hydrogen bond energy.", publisher = "Edizioni Minerva Medica, Turin", journal = "Minerva Biotecnologica", title = "Rheological quantification of liposomes aggregation", pages = "249-245", number = "4", volume = "17", url = "https://hdl.handle.net/21.15107/rcub_agrospace_1102" }
Pajić-Lijaković, I., Bugarski, B., Nedović, V.,& Plavsić, M.. (2005). Rheological quantification of liposomes aggregation. in Minerva Biotecnologica Edizioni Minerva Medica, Turin., 17(4), 245-249. https://hdl.handle.net/21.15107/rcub_agrospace_1102
Pajić-Lijaković I, Bugarski B, Nedović V, Plavsić M. Rheological quantification of liposomes aggregation. in Minerva Biotecnologica. 2005;17(4):245-249. https://hdl.handle.net/21.15107/rcub_agrospace_1102 .
Pajić-Lijaković, Ivana, Bugarski, Branko, Nedović, Viktor, Plavsić, M., "Rheological quantification of liposomes aggregation" in Minerva Biotecnologica, 17, no. 4 (2005):245-249, https://hdl.handle.net/21.15107/rcub_agrospace_1102 .