Structural, Electronic, Optical Properties and Antibacterial Application of Novel (PMMA-Al2O3-Ag) Nanocomposites for Dental Industries Applications

Abstract

In this paper, the effect of adding Ag nanoparticles on the optimized geometrical parameters, electronic and optical properties of the (PMMA-Al 2 O 3 ) nanostructures for antibacterial application. The electronic properties included electrochemical hardness and electronic softness while the optical properties include absorbance, transmittance, absorption coefficient, extinction coefficient, refractive index, real and imaginary parts of dielectric constants and optical conductivity. The properties calculated by using Gaussian 0.9 program with Gaussian View 0.5 using density function theory (DFT) with local spin density approximation B3LYP level, 6-31G and STO-3D basis sets. The results showed that the addition of Ag nanoparticles lead to decrease the chemical hardness and increase in the softness. The optical properties for (PMMA-Al 2 O 3 -Ag) nanocomposites showed that the absorbance, absorption coefficient, extinction coefficient, refractive index, real and imaginary parts of dielectric constants and optical conductivity of (PMMA-Al 2 O 3 ) nanocomposites increase while the transmittance and energy band gap decrease with increase in Ag nanoparticles concentrations. The results of application showed that the (PMMA-Al 2 O 3 -Ag) nanocomposites have good antibacterial for positive and negative gram organisms bacteria.

Recent review on metal oxides nanostructures doped polystyrene for biological and industrial applications

“…However, polymer nanocomposites are at the forefront of applications due to their more advanced stage of research [19].Additionally, nanomaterial-based composites can offer a variety of multifunctional qualities, including stability thermal, electronic qualities, field emission, optical quality, increased material durability, impact resistance, absorb energy and others [20]. There are many studies on properties of composites and nanocomposies included optical properties [21][22][23][24][25][26][27][28][29][30][31][32][33][34], electrical and dielectric properties [35][36][37][38][39][40], to employ in various applications involved sensors and piezoelectric [41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57], biomedical [58][59][60][61][62][63][64]…”

Studies on Characteristics of Polymer/Ceramics Nanocomposites for Biomedical and Industrial Applications

“…[22]. Nanocomposites and composite materials have huge applications in the different biomedical, environmental and industrial fields like energy storage and release [23][24][25][26], antibacterial agents [27][28][29][30][31][32][33][34][35], humidity sensors [36][37][38][39], bioenvironmental and radiation shielding [40][41][42][43][44][45][46]. The adding of micro-or nanoparticles of biomaterial to polymer or polymer blend can improve the properties of polymer matrix like electronic properties [47][48][49][50][51][52], optical properties , electrical and dielectric properties [76][77][78][79][80][81][82][83][84][85][86][87][88][89].…”

Bamboo Fibers, Fabrication of Bamboo Fiber reinforced Composites, and their Mechanical Properties- A Review

“…Study on the characteristics of bamboo fiber-reinforced composite materials is focused on the granular size of bamboo particles (20,40,60) mesh, bamboo fiber and PVC matrix (Polyvinyl Chloride) volume fraction with variations in fiber fraction (30%, 40%, 50%), composite production process through a hot press with process parameters for 6 MPa pressure, a pressure temperature of 448.15 K with a pressure time of 8 minutes. Combination of 40 mesh bamboo particle size with a fiber volume fraction used at 50% provides optimum strength values [40].…”

“…Other material research are also found in various applications [59][60][61]. Extensive changes from an economic perspective are needed in an advance composite; the only choice is the use of natural plant fibers.…”