کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1428747 1509180 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the distinct molecular architectures of dipping- and spray-LbL films containing lipid vesicles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
On the distinct molecular architectures of dipping- and spray-LbL films containing lipid vesicles
چکیده انگلیسی


• DODAB and DPPG lipid vesicles were immobilized using the spray-LbL technique.
• Vesicle integrity was kept despite the pressure induced by spray deposition.
• Sensing units with spray-LbL films of DODAB/DPPG applied in e-tongue experiments.
• Highly diluted solutions of xanthene were detected.

The introduction of spraying procedures to fabricate layer-by-layer (LbL) films has brought new possibilities for the control of molecular architectures and for making the LbL technique compliant with industrial processes. In this study we show that significantly distinct architectures are produced for dipping and spray-LbL films of the same components, which included DODAB/DPPG vesicles. The films differed notably in their thickness and stratified nature. The electrical response of the two types of films to aqueous solutions containing erythrosin was also different. With multidimensional projections we showed that the impedance for the DODAB/DPPG spray-LbL film is more sensitive to changes in concentration, being therefore more promising as sensing units. Furthermore, with surface-enhanced Raman scattering (SERS) we could ascribe the high sensitivity of the LbL films to adsorption of erythrosin.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 41, 1 August 2014, Pages 363–371
نویسندگان
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