TY - JOUR
T1 - Antimicrobial and Antibiofilm Properties of Fluorinated Polymers with Embedded Functionalized Nanodiamonds
AU - Nunes-Pereira, João
AU - Costa, Pedro
AU - Fernandes, Liliana C.
AU - Carvalho, Estela O.
AU - Fernandes, Margarida M.
AU - Carabineiro, Sónia A. C.
AU - Buijnsters, Josephus G.
AU - Tubio, Carmen R.
AU - Lanceros-Mendez, Senentxu
N1 -
UID/EMS/00151/2020
UID/FIS/04650/2020
PTDC/BTM-MAT/28237/2017
PTDC/EMD-EMD/28159/2017
SFRH/BPD/117838/2016
SFRH/BPD/110914/2015
SFRH/BD/145345/2019
SFRH/BD/145455/2019
SFRH/BPD/121464/2016
UIDB/50006/2020
project no. 16361
PID2019-106099RB-C43/AEI/ 10.13039/501100011033
PIBA-2018-06
Sem PDF conforme despacho.
PY - 2020/11/13
Y1 - 2020/11/13
N2 - Environmentally resilient antimicrobial coatings are becoming increasingly required for a wide range of applications. For this purpose, nanocomposite thin films of poly(vinylidene fluoride) (PVDF) filled with several types of functionalized nanodiamonds (NDs) were processed by solvent casting. The effects of ND inclusion and functionalization in their morphological, structural, optical, thermal, and electrical properties were evaluated taking into account the type of the nanofiller and a concentration up to 2 wt %. The morphology, structure, and thermal features of the polymer matrix are governed by the processing conditions, and no noticeable changes occurred due to the presence of the ND fillers. The polymer crystallized mainly in the α phase with a crystallinity of ≈60%. In turn, the optical transmittance from 200 to 800 nm and the dielectric constant effectively depended on the ND type and content. The inclusion of the ND particles effectively provided antimicrobial properties to the films, which depended on the ND functionalization. This study thus shows that the incorporation of functionalized NDs into PVDF allows the development of antimicrobial coatings with tailorable optical and dielectric properties, which could be of great importance to face nowadays pandemic crisis scenario.
AB - Environmentally resilient antimicrobial coatings are becoming increasingly required for a wide range of applications. For this purpose, nanocomposite thin films of poly(vinylidene fluoride) (PVDF) filled with several types of functionalized nanodiamonds (NDs) were processed by solvent casting. The effects of ND inclusion and functionalization in their morphological, structural, optical, thermal, and electrical properties were evaluated taking into account the type of the nanofiller and a concentration up to 2 wt %. The morphology, structure, and thermal features of the polymer matrix are governed by the processing conditions, and no noticeable changes occurred due to the presence of the ND fillers. The polymer crystallized mainly in the α phase with a crystallinity of ≈60%. In turn, the optical transmittance from 200 to 800 nm and the dielectric constant effectively depended on the ND type and content. The inclusion of the ND particles effectively provided antimicrobial properties to the films, which depended on the ND functionalization. This study thus shows that the incorporation of functionalized NDs into PVDF allows the development of antimicrobial coatings with tailorable optical and dielectric properties, which could be of great importance to face nowadays pandemic crisis scenario.
KW - antimicrobial films
KW - nanodiamonds
KW - poly(vinylidene fluoride)
KW - polymer composites
KW - solvent casting
UR - http://www.scopus.com/inward/record.url?scp=85097559740&partnerID=8YFLogxK
U2 - 10.1021/acsapm.0c00869
DO - 10.1021/acsapm.0c00869
M3 - Article
AN - SCOPUS:85097559740
VL - 2
SP - 5014
EP - 5024
JO - ACS Applied Polymer Materials
JF - ACS Applied Polymer Materials
IS - 11
ER -