Synthesis of mucoadhesive thiol-bearing microgels from 2-(acetylthio)ethylacrylate and 2-hydroxyethylmethacrylate: novel drug delivery systems for chemotherapeutic agents to the bladder
نویسندگان
چکیده
Thiol-bearing microgels have been synthesised from copolymerisation of 2-(acetylthio)ethylacrylate and 2-hydroxyethylmethacrylate, and subsequent deprotection using sodium thiomethoxide. The concentration of thiol groups on these microgels could be tailored by use of different molar ratios of the two monomers. These thiol-bearing microgels were shown to adhere to ex vivo porcine urinary bladder, which was correlated with their level of thiolation. By simply mixing solutions of thiol-bearing microgels and doxorubicin, high levels of drug loading into the microgels could be achieved. Thiol-bearing microgels controlled the release of doxorubicin in a time-dependent manner over several hours. These doxorubicin-loaded thiolbearing microgels could have application in the treatment of early-stage bladder cancers. The method used represents a new ‘bottom-up’ approach for the synthesis of novel mucoadhesive microgels.
منابع مشابه
In vitro of some bfactors affecthng the adhesive strength of mucoadhesive polymers
Mucoadhesive durg delivery systems are among novel drug delivery systems that due to their ability to adhere and remain on the mucosal surfaces and a show and sustained release of their drug contect have attracted special attention in recent years.the aim of this study was to evaluate the effect of four different important factors on the mucoadhesive strength of a few mucoadhesive polymers.am...
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