Synthesis of Graphene Oxide from Sugarcane Dry Leaves by Two-Stage Pyrolysis.

Natural or synthetic graphite as precursors for the preparation of graphene oxide (GO) have constraints due to their limited availability, high reaction temperature for processing of synthetic graphite and higher generation cost. The use of oxidants, long reaction duration, the generation of toxic gases and residues of inorganic salts, the degree of hazard and low yield are some of the disadvantages of the oxidative-exfoliation methods. Under these circumstances, biomass waste usage as a precursor is a viable alternative.

Synthesis of Carbon Quantum Dots with Special Reference to Biomass as a Source - A Review.

Quantum dots (QDs) have received much attention due to their extraordinary optical application in medical diagnostics, optoelectronics and in energy storage devices. The most conventional QDs are based on semiconductors that comprise heavy metals whose applications are limited due to toxicity and potential environmental hazard. Of late, researchers are focusing on carbon-based quantum dots, which have recently emerged as a new family of zero-dimensional nanostructured materials.

Improving the stability of thyme essential oil solid liposome by using β-cyclodextrin as a cryoprotectant.

The objective of this study was to investigate the preparation of the freeze-dried ε-polylysine (ε-PLY)-coated thyme essential oil (TEO) liposome, and its application in vegetable juices to control the Escherichia coli O157:H7 growth. Firstly, the solid liposomes (SLP) were obtained via freeze-drying in the presence of β-cyclodextrins as cryoprotectant under different ratios of β-cyclodextrin: lipid (w/w) (2:1, 4:1, 6:1 and 8:1). The ultraviolet visible and fourier transformed infrared spectrograms results indicated the presence of TEO and ε-PLY in SLPs.