title: Cellulose triacetate films obtained from sugarcane bagasse: Evaluation as coating and mucoadhesive material for drug delivery systems.
abstract: Cellulose triacetate (CTA) films were produced from cellulose extracted from sugarcane bagasse. The films were characterized using scanning electron microscopy (SEM), water vapor permeability (WVP), mechanical properties (MP), enzymatic digestion (ED), and mucoadhesive properties evaluation (MPE). WVP showed that more concentrated films have higher values; asymmetric films had higher values than symmetric films. MP showed that symmetric membranes are more resistant than asymmetric ones. All films presented high mucoadhesiveness. From the WVP and MP results, a symmetric membrane with 6.5% CTA was selected for the coating of gellan gum (GG) particles incorporating ketoprofen (KET). Thermogravimetric analysis (TGA) showed that the CTA coating does not influence the thermal stability of the particles. Coated particles released 100% of the KET in 24h, while uncoated particles released the same amount in 4h. The results highlight the CTA potential in the development of new controlled oral delivery systems.
authors: Federal University of Uberlândia, Chemistry Institute, Uberlândia, Minas Gerais, Brazil; Federal University of Uberlândia, Integrated Sciences College of Pontal (FACIP), Ituiutaba, Minas Gerais, Brazil. Electronic address: sabrinaquimica@yahoo.com.br.
authors: Sabrina Dias
authors: SD
authors: Ribeiro
authors: Federal University of Uberlândia, Chemistry Institute, Uberlândia, Minas Gerais, Brazil. Electronic address: guimes.rodriguesfilho@gmail.com.
authors: Guimes
authors: G
authors: -Rodrigues Filho
authors: State University Paulista Júlio de Mesquita Filho, Araraquara, São Paulo, Brazil. Electronic address: abagliottim@hotmail.com.
authors: Andréia Bagliotti
authors: AB
authors: Meneguin
authors: State University Paulista Júlio de Mesquita Filho, Araraquara, São Paulo, Brazil. Electronic address: fasuecia@yahoo.com.br.
authors: Fabíola Garavello
authors: FG
authors: Prezotti
authors: State University Paulista Júlio de Mesquita Filho, Araraquara, São Paulo, Brazil. Electronic address: boni.fernanda@gmail.com.
authors: Fernanda Isadora
authors: FI
authors: Boni
authors: State University Paulista Júlio de Mesquita Filho, Araraquara, São Paulo, Brazil. Electronic address: curybsf@fcfar.unesp.br.
authors: Beatriz Stringhetti Ferreira
authors: BSF
authors: Cury
authors: State University Paulista Júlio de Mesquita Filho, Araraquara, São Paulo, Brazil. Electronic address: pgremiao@uol.com.br.
authors: Maria Palmira Daflon
authors: MPD
authors: Gremião
mesh_terms: D000269:Adhesives / Q000737:chemistry*; D002482:Cellulose / Q000031:analogs & derivatives* / Q000737:chemistry; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D016503:Drug Delivery Systems; D008567:Membranes, Artificial; D031786:Saccharum / Q000737:chemistry*
chemical_list: D000269:Adhesives; D020099:Coated Materials, Biocompatible; D008567:Membranes, Artificial; D002482:Cellulose; C027433:bagasse; C024671:cellulose triacetate
keywords: Cellulose triacetate; Cellulose triacetate (PubChem CID: 44263853); Coating; Controlled release; Gellan gum; Ketoprofen; Ketoprofen (PubChem CID: 3825); Mucoadhesive