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• W1991232660 abstract "The effect of several formulation variables on some of the physico-chemical characteristics of poly (ethyl cyanoacrylate) (PECA) nanocapsules prepared by the interfacial polymerisation of biocompatible water-in-oil microemulsions was investigated. In all cases, yields were high (>90%) and the polydispersity in size of nanocapsules was narrow. The molecular weight of the nanocapsules formed was influenced by the pH of the aqueous component of the microemulsion, increasing with increasing pH. The size of the nanocapsules formed (ranging from around 130 to 180 nm) was a function of the ratio of the mass of monomer used to the water weight fraction of the microemulsion, increasing as this ratio was increased. This is due to the formation of a thicker polymer wall resulting from the increased mass of monomer available per unit interfacial area as this ratio is increased. The rate of release of insulin from nanocapsules was also influenced by this ratio, in agreement with its effect on wall thickness. This study demonstrates that many pharmaceutically relevant physico-chemical properties of poly (alkyl cyanoacrylate) (PACA) nanocapsules prepared by interfacial polymerisation of microemulsions can readily be manipulated by changing either the pH of the aqueous component, the water weight fraction of the microemulsion or the mass of monomer used for polymerisation." @default.
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• W1991232660 date "2002-03-01" @default.
• W1991232660 modified "2023-10-01" @default.
• W1991232660 title "Effects of formulation variables on characteristics of poly (ethylcyanoacrylate) nanocapsules prepared from w/o microemulsions" @default.
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• W1991232660 doi "https://doi.org/10.1016/s0378-5173(02)00002-9" @default.
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