Special Issue "Natural Polymers and Biopolymers II"
Deadline for manuscript submissions: 31 October 2020.
The past fifteen years have seen a booming number of articles and reviews describing the use of bio-resources as a starting point for original polymer chemistry. Hence, these latest developments have not only created a library of polymeric materials exhibiting a wide range of properties to fulfill the requirements of various industrial applications, but they have also improved our knowledge and understanding of the structure and reactivity of the complex biomass.
This Special Issue on “Natural Polymers and Biopolymers II” will present cutting-edge research works focusing on the use of bio-resources for polymeric materials. It will demonstrate that the field of “green polymers” is still gaining increased attention, highlighting that natural and biopolymers, with their interesting and original properties, are destined to replace their oil-based competitors.
Dr. Sylvain Caillol
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- Chemical functionalization
- Structure characterization
- Thermal properties
- Mechanical properties
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Authors: Samantha Molina-Gutierrez 1,2, Sara Dalle Vacche 2, Alessandra Vitale 2, Vincent Ladmiral 1, Sylvain Caillol 1, Patrick Lacroix-Desmazes* 1, Roberta Bongiovanni* 2
Affiliation: 1. ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France. 2. DISAT, Politecnico di Torino, Torino, Italy
Abstract: Photoinduced polymerization of eugenol-derived methacrylates from isoeugenol and dihydroeugenol was studied in the absence and presence of a photoinitiator (Darocur 1173 and Irgacure 819) and under air. The polymerization rate of the methacrylate double bonds was affected by the presence and reactivity of the propenyl double bonds in the isoeugenol derived molecules. The conversion of methacrylate and propenyl double bonds were monitored on FT Real-Time IR and the thermal properties of the photoinduced polymers produced with Darocur 1173 were measured.
Title: Curcumin-loaded Bacterial cellulose/Alginate/Gelatin as multifunctional biopolymer composites
Authors: Nadda Chiaoprakobkij1, Thapanar Suwanmajo4, Neeracha Sanchavanakit3, Muenduen Phisalaphong1, 2
Affiliation: 1 Biomedical Engineering Program, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand 2 Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand 3Research Unit of Mineralized Tissues, Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand 4Centre of Excellence in Materials Science and Technology, Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
Abstract: Multifunctional biopolymer composites comprising of mechanically-disintegrated bacterial cellulose, alginate, gelatin and curcumin plasticized with glycerol were successfully fabricated for the first time through a simple, facile, cost-effective mechanically blending and casting method. SEM images indicated a well-distributed structure of the composites. The water contact angles existed in the range of 50-70°. Measured water vapor permeability values were 300-800 g/m2/24h, which were comparable with those of commercial dressing products. No release of curcumin from the films was observed during the immersion in PBS and artificial saliva and the fluid uptakes were in the range of 100-700%. Films were stretchable and provided appropriate stiffness enduring complex deformation under hydrated environment that simulate clinical conditions. Hydrated films adhered firmly onto the skin. In vitro mucoadhesion time was found between the ranges of 0.5-6 h with porcine mucosa as model membrane under artificial saliva medium. The curcumin-loaded films had substantially antibacterial activity against E. coli and S. aureus. The films were biocompatible as confirmed by MTT assay of human keratinocytes and human gingival fibroblasts, but exhibited potent anticancer activity in oral cancer cells. Therefore, these curcumin-loaded films showed their potential use as leave-on skin applications. These versatile films could be further tuned to achieve desirable characteristics for locally topical patch for wound care, periodontitis and oral cancer treatment.