Drug release from nanoparticles embedded in four different nanofibrillar cellulose aerogels

[Display omitted] Highly porous nanocellulose aerogels prepared by freeze-drying from various nanofibrillar cellulose (NFC) hydrogels are introduced as nanoparticle reservoirs for oral drug delivery systems. Here we show that beclomethasone dipropionate (BDP) nanoparticles coated with amphiphilic hy...

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Veröffentlicht in:European journal of pharmaceutical sciences 2013-09, Vol.50 (1), p.69-77
Hauptverfasser: Valo, Hanna, Arola, Suvi, Laaksonen, Päivi, Torkkeli, Mika, Peltonen, Leena, Linder, Markus B., Serimaa, Ritva, Kuga, Shigenori, Hirvonen, Jouni, Laaksonen, Timo
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container_issue 1
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container_title European journal of pharmaceutical sciences
container_volume 50
creator Valo, Hanna
Arola, Suvi
Laaksonen, Päivi
Torkkeli, Mika
Peltonen, Leena
Linder, Markus B.
Serimaa, Ritva
Kuga, Shigenori
Hirvonen, Jouni
Laaksonen, Timo
description [Display omitted] Highly porous nanocellulose aerogels prepared by freeze-drying from various nanofibrillar cellulose (NFC) hydrogels are introduced as nanoparticle reservoirs for oral drug delivery systems. Here we show that beclomethasone dipropionate (BDP) nanoparticles coated with amphiphilic hydrophobin proteins can be well integrated into the NFC aerogels. NFCs from four different origins are introduced and compared to microcrystalline cellulose (MCC). The nanocellulose aerogel scaffolds made from red pepper (RC) and MCC release the drug immediately, while bacterial cellulose (BC), quince seed (QC) and TEMPO-oxidized birch cellulose-based (TC) aerogels show sustained drug release. Since the release of the drug is controlled by the structure and interactions between the nanoparticles and the cellulose matrix, modulation of the matrix formers enable a control of the drug release rate. These nanocomposite structures can be very useful in many pharmaceutical nanoparticle applications and open up new possibilities as carriers for controlled drug delivery.
doi_str_mv 10.1016/j.ejps.2013.02.023
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subjects Aerogel
Bacterial cellulose
Beclomethasone - administration & dosage
Beclomethasone - chemistry
Calorimetry, Differential Scanning
Cellulose - chemistry
Drug Carriers - chemistry
Drug Compounding
Drug release
Freeze Drying
Hydrogels - chemistry
Hydrophobin
Microscopy, Atomic Force
Microscopy, Electron, Scanning
Nanofibers - chemistry
Nanofibrillar cellulose
Nanoparticles
Nanoparticles - chemistry
Particle Size
Powder Diffraction
Solubility
Spectroscopy, Fourier Transform Infrared
Surface Properties
title Drug release from nanoparticles embedded in four different nanofibrillar cellulose aerogels
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