Polymethylmethacrylate-palladium composites as promising packaging material

Polymethyl methacrylate (PMMA) is a well-established transparent thermoplastic polymer chosen for a numerous variety of applications due to its biocompatibility, recyclability, lightweight more than glass and less expensive than it. This study is focused on the manufacturing of a composite consisting of PMMA matrix and palladium (Pd) nanopowder in different concentrations. The obtained composite is proposed as a promising material for packaging in view of the claimed good processability, recy...

Carbon dots synthesization via graphite laser ablation in biocompatible solution

Photoluminescent carbon dots (CDs) have been synthesized via laser ablation of graphite targets placed in biocompatible liquids. A Nd:YAG pulsed laser, 3 ns pulse duration, and 100 mJ pulse energy have been employed to irradiate graphite at a 1 Hz repetition rate in a phosphate-buffered saline (PBS) solution with water. The laser ablation yield was 77 ng/pulse, of which about 10% of the ablated mass is represented by synthesized CDs, Results demonstrated that the CDs dispersion is luminescent...

Thermally treated GO foil dielectric properties under low and medium vacuum conditions

The dielectric properties of thermally treated graphene oxide (GO) foils under low and medium vacuum conditions were investigated at room temperature. The thermal treatment consisted of successive heating at different temperatures (50°C, 100°C, 150°C) under vacuum conditions ranging from low vacuum (0.5 mbar for heating at 50°C and 100°C) to medium vacuum (3×10−2 mbar for heating at 150°C). The dielectric properties, i.e. the real part ε1 of permittivity, the imaginary part ε2 of permittivi...

Optimizing Tranexamic Acid Use In Adult Cardiac Surgery: From Rationale To Clinical Practice