Antimicrobial, antibiofilm, and microbial barrier properties of poly (ε-caprolactone)/cloisite 30B thin films

Abstract

Development of antibacterial and antibiofilm surfaces is in high demand. In this study, nanocomposite of Poly (ε-caprolactone)/Cloisite 30B was prepared by the solvent casting method. The membranes were characterised by SEM, AFM, and FTIR. Evaluation of water uptake, antimicrobial, antibiofilm, and microbial barrier properties demonstrated a significant antimicrobial and antibiofilm activity against MTCC strain of Staphylococcus haemolyticus and strong biofilm positive Staphylococcus epidermidis of clinical origin at low clay concentrations. These membranes acted as an excellent barrier to the penetration of microorganism. These nanocomposites can have promising applications in various fields including packaging.

The Role of Nanoparticle Shapes and Structures in Material Characterisation of Polyvinyl Alcohol (PVA) Bionanocomposite Films

“…The FTIR peak located at 3271.5 cm −1 associated with O-H stretching shifts to higher wavenumbers at 3280 and 3289 cm −1 , as well as 3279 and 3283 cm −1 with the inclusion of HNTs and Cloisite 30B clays at the nanoparticle contents of 3 and 5 wt %, respectively. Such a finding was attributed to the strengthening effect of hydrogen bonds between -OH groups from PVA molecules and those located on clay surfaces such as silanol groups (-SiOH), which is in good agreement with previous investigations on PVA/organomodified Cloisite Na + (OMMT) nanocomposites [21], poly (ε-caprolactone) (PCL)/Cloisite 30B clay nanocomposites [25], and PVA/chitosan (CS)/HNT nanocomposites [26]. However, when the HNT content increases up to 10 wt %, two Al 2 OH stretchings appear for embedded HNTs in bionanocomposite films due to typical HNT agglomeration [27].…”

Research of Binary and Ternary Composites Based on Selected Aliphatic or Aliphatic–Aromatic Polymers, 5CB or SWCN toward Biodegradable Electrodes

“…PCL degrades slowly by the hydrolysis process, caused by its high crystallinity and hydrophobic nature. Among the various biological, ecological, and medical applications, PCL has been implemented as implantable biomaterials, biodegradable materials, and microparticles for drug delivery [24][25][26][27][28][29][30][31]. Additionally, the effect of carbon nanotubes and silver nanoparticles on the biological properties of PCL were tested [30].…”

Intercepting signalling mechanism to control environmental biofouling

“…Applying biocides as antifouling agent basically gives stress factor to bacterial community and employ them to produce more exopolysaccharides, which has been the principal element of biofilm formation. Hence, having alternative, safe, sustainable, eco-friendly control, and use of biological tools have been gaining attention rather than synthetic chemicals (Babu et al 2016).…”

“…Due to the unavoidable nature of biofouling problem irrespective of field, the persistency of sticky nature of the phenomena has to be subjected to a wide range of integrated branches of research to produce solutions to this problem (Babu et al 2016). Nguyen et al (2012) have thoroughly described about the orientation of biofouling research, hence in this study, a time period of late 2012-2017 has been considered to discuss current biofouling status.…”