The goal of this study was to develop an optimized drug delivery carrier for oral mucosa applications able to release in situ bioactive molecules by using biopolymeric materials. Among them chitosan and poly(lactic-co-glycolic acid) (PLGA) have gained considerable attention as biocompatible carriers able to improve the delivery of active agents. The formulation of such vehicles in the form of nanoparticles (NPs) could permit to exploit the peculiar properties of nanomaterials in order to enhance the efficacy of active agents. Chitosan (CS) and PLGA chlorexidine dihydrochloride (CHX)-loaded NPs were synthesized by ionotropic gelation and osmosis based methodology respectively. In order to facilitate NPs adhesion on human dental surfaces, two different strategies were employed: PLGA particles with an external shell of CS to produce a positive surface charge allowing CHX loaded PLGA NPs to interact with the negative charged dental surfaces, while CS particles were functionalized with peptidomimetic derivative glutathione (GSH). The morphology was investigated by scanning electron microscopy. A sustained release profile of CHX from CS NPs was achieved. CS-based NPs adhered on human tooth surfaces in a simulated brushing and rinsing process and their in vitro toxicity evaluation on Human Gingival Fibroblasts (HGFs) was between 20 and 60% in all experimental conditions. Thanks to their adhesion properties and low cytotoxicity, the synthesized CS-based formulations may be efficiently exploited for therapy purposes or to enhance in vivo dental care (i.e. preparation of toothpastes or other cosmetics for daily oral care).

Chronopoulou, L., Nocca, G., Castagnola, M., Paludetti, G., Ortaggi, G., Sciubba, F., Bevilacqua, M., Lupi, A., Gambarini, G., Palocci, C., Chitosan based nanoparticles functionalized with peptidomimetic derivatives for oral drug delivery, <<NEW BIOTECHNOLOGY>>, 2016; 33 (1): 23-31. [doi:10.1016/j.nbt.2015.07.005] [http://hdl.handle.net/10807/70611]

Chitosan based nanoparticles functionalized with peptidomimetic derivatives for oral drug delivery

Nocca, Giuseppina;Castagnola, Massimo;Paludetti, Gaetano;Lupi, Alessandro;
2016

Abstract

The goal of this study was to develop an optimized drug delivery carrier for oral mucosa applications able to release in situ bioactive molecules by using biopolymeric materials. Among them chitosan and poly(lactic-co-glycolic acid) (PLGA) have gained considerable attention as biocompatible carriers able to improve the delivery of active agents. The formulation of such vehicles in the form of nanoparticles (NPs) could permit to exploit the peculiar properties of nanomaterials in order to enhance the efficacy of active agents. Chitosan (CS) and PLGA chlorexidine dihydrochloride (CHX)-loaded NPs were synthesized by ionotropic gelation and osmosis based methodology respectively. In order to facilitate NPs adhesion on human dental surfaces, two different strategies were employed: PLGA particles with an external shell of CS to produce a positive surface charge allowing CHX loaded PLGA NPs to interact with the negative charged dental surfaces, while CS particles were functionalized with peptidomimetic derivative glutathione (GSH). The morphology was investigated by scanning electron microscopy. A sustained release profile of CHX from CS NPs was achieved. CS-based NPs adhered on human tooth surfaces in a simulated brushing and rinsing process and their in vitro toxicity evaluation on Human Gingival Fibroblasts (HGFs) was between 20 and 60% in all experimental conditions. Thanks to their adhesion properties and low cytotoxicity, the synthesized CS-based formulations may be efficiently exploited for therapy purposes or to enhance in vivo dental care (i.e. preparation of toothpastes or other cosmetics for daily oral care).
Inglese
Chronopoulou, L., Nocca, G., Castagnola, M., Paludetti, G., Ortaggi, G., Sciubba, F., Bevilacqua, M., Lupi, A., Gambarini, G., Palocci, C., Chitosan based nanoparticles functionalized with peptidomimetic derivatives for oral drug delivery, <<NEW BIOTECHNOLOGY>>, 2016; 33 (1): 23-31. [doi:10.1016/j.nbt.2015.07.005] [http://hdl.handle.net/10807/70611]
File in questo prodotto:
File Dimensione Formato  
70611.pdf

non disponibili

Tipologia file ?: Versione Editoriale (PDF)
Licenza: Non specificato
Dimensione 1.88 MB
Formato Unknown
1.88 MB Unknown   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10807/70611
Citazioni
  • ???jsp.display-item.citation.pmc??? 10
  • Scopus 27
  • ???jsp.display-item.citation.isi??? 25
social impact