2015
DOI: 10.1208/s12249-015-0354-5
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Nanoparticle-Based Topical Ophthalmic Gel Formulation for Sustained Release of Hydrocortisone Butyrate

Abstract: Abstract. This study was conducted to develop formulations of hydrocortisone butyrate (HB)-loaded poly(D,L-lactic-co-glycolic acid) nanoparticles (PLGA NP) suspended in thermosensitive gel to improve ocular bioavailability of HB for the treatment of bacterial corneal keratitis. PLGA NP with different surfactants such as polyvinyl alcohol (PVA), pluronic F-108, and chitosan were prepared using oil-in-water (O/W) emulsion evaporation technique. NP were characterized with respect to particle size, entrapment effi… Show more

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Cited by 72 publications
(40 citation statements)
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“…Besides contact lenses, other composite systems including implants, fibers or in situ gels were also used to load nanoparticles [218, 223]. Drugs including lidocaine [210], ciprofloxacin [219], levofloxacin [220], CsA [221, 222], timolol [213, 217], silver [224], meloxicam [225], dexamethasone [226228], loteprednol etabonate [214], hydrocortisone butyrate [223], and resina draconis [218] have been loaded into the nanoparticles to be delivered through the composite systems. Four different methods have been used to prepare nanoparticle-laden therapeutic contact lenses.…”
Section: Nanoparticles For Drug Delivery To the Anterior Segmentmentioning
confidence: 99%
“…Besides contact lenses, other composite systems including implants, fibers or in situ gels were also used to load nanoparticles [218, 223]. Drugs including lidocaine [210], ciprofloxacin [219], levofloxacin [220], CsA [221, 222], timolol [213, 217], silver [224], meloxicam [225], dexamethasone [226228], loteprednol etabonate [214], hydrocortisone butyrate [223], and resina draconis [218] have been loaded into the nanoparticles to be delivered through the composite systems. Four different methods have been used to prepare nanoparticle-laden therapeutic contact lenses.…”
Section: Nanoparticles For Drug Delivery To the Anterior Segmentmentioning
confidence: 99%
“…The increase in T g was also observed in case of PLGA as the endotherm of its pure spectra was observed at 47.5°C whereas this was seen at 52.3°C in the spectra of ACNs with PLGA. [23] Entrapment efficiency…”
Section: Dscmentioning
confidence: 99%
“…tarafından, bakteriyel keratit tedavisine yönelik olarak yapılan bir çalışmada, hidrokortizon butirat yüklü poli [laktik-ko-glikolik asit (PLGA)] nanopartikülleri sürfaktan olarak polivinil alkol, pluronik F108 veya kitosan kullanılarak hazırlanarak, PLGA-PEG-PLGA termosensitiv jel içinde disperse edilmiş ve in vitro karaterizasyon çalışmaları gerçekleştirilmiştir. 89 Çalışmada, nanopartiküllerin jel içinde disperse edilmesiyle in vitro ilaç salımında patlama etkisinin (burst effect) engellenerek ideal bir hidrokortizon butirat salım profilinin elde edildiği belirtilmiştir. Ayrıca, insan kornea epitel hücreleri ile nanopartiküllerin inkübasyonu sonucu gerçekleştirilen hücre kültürü çalışmalarında 4.saat sonunda kitosan kullanılarak hazırlanan formülasyonların diğer formülasyonlara göre daha çok hücre içine alındığı, ancak 24. saat sonunda daha yüksek toksisite gösterdiği bulunmuştur.…”
Section: İlaç Taşiyici Yeni̇ Si̇stemlerunclassified