Philip Drake, Ilma Amalina, Retno Sari, Amalia Ruiz, Saliha Ramazan, Gordon Hope, Dharmisthaben Pancholi, Andang Miatmoko
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引用次数: 0
Abstract
Niosomes co-loaded with doxorubicin and magnetic nanoparticles were synthesised using the thin film hydration method. The loading efficiency of the doxorubicin was between 60-70%. The hydrodynamic diameter measured as the average number (mean ± standard deviation), using dynamic light scattering, was found to be 188 ± 68 nm, 141 ± 86 nm and 169 ± 69 nm for the plain niosomes, niosomes loaded with doxorubicin and niosomes loaded with doxorubicin and magnetic nanoparticles, respectively. The zeta potential for all three niosome samples was determined to be -26.4 mV ± 1.9 mV. The thermally mediated release of doxorubicin was monitored using fluorescence spectroscopy and found to follow 1st order kinetics. The rate constant for the thermal release was 1.2 × 10-6, 1.0 × 10-4 and 5.1 × 10-4 min-1 at 298, 313 and 333 K, respectively. The doxorubicin was also released using an alternating magnetic field, this also followed 1st order kinetics and had a rate constant of 1.7 × 10-2 min-1. This is four orders of magnitude greater than the thermal release at the same temperature (298 K). The work shows the magnetically controlled, burst release from a drug-loaded niosome delivery system. The release was triggered on demand by the application of the alternating magnetic field, resulting in 86% doxorubicin release within 3 hours compared to 3% release in 30 days via thermal release.
期刊介绍:
Soft Matter is an international journal published by the Royal Society of Chemistry using Engineering-Materials Science: A Synthesis as its research focus. It publishes original research articles, review articles, and synthesis articles related to this field, reporting the latest discoveries in the relevant theoretical, practical, and applied disciplines in a timely manner, and aims to promote the rapid exchange of scientific information in this subject area. The journal is an open access journal. The journal is an open access journal and has not been placed on the alert list in the last three years.