Green Synthesis of Luminescent Carbon Dots from Ficus benghalensis Aerial Roots for Bioimaging.

In this work, carbon quantum dots (CQDs) were prepared using a one-step hydrothermal green synthesis method from a low-cost and eco-friendly renewable biomass, specifically the Ficus benghalensis aerial roots (FB-AR). For the past two decades, CQDs have been noted for their tunable emission spectrum, quantum yield, biocompatibility, photostability, and unique optoelectronic properties such as photoluminescence (PL), and fluorescence. The synthesized Ficus benghalensis carbon quantum dots (FB-CQDs) were characterized for their physical, structural, and chemical properties using XRD, Raman, HRTEM, XPS, FTIR, TG-DTG, UV-visible, and photoluminance analysis.

Ion Beam Analysis of Proton-Induced X-ray Emission (PIXE) Techniques for Elemental Investigation of Young Stage Neem Leaf of Southern India, Tamil Nadu.

Young stage neem leaf (Azadirachta indica) was collected at Thiruvallur district in Tamil Nadu, South India. Multi-elemental analysis of neem leaf was carried out using non-destructive techniques (NDT) of proton-induced X-ray emission (PIXE, 2.5 MeV) which is one of the well-known surface chemical sophisticated analytical methods of ion beam analyses (IBA).

Synthesis of ecofriendly copper oxide nanoparticles for fabrication over textile fabrics: Characterization of antibacterial activity and dye degradation potential.

Growing concerns over the toxicity of metallic nanoparticles synthesized using physical and chemical techniques seems to be a major hurdle for researchers. Green synthesis of nanoparticles is one of the promising, ecofriendly and safer methods. Utilizing plant sources as reducing agents will replace the use of toxic chemicals for nanoparticle synthesis.

Biogenesis of copper oxide nanoparticles (CuONPs) using Sida acuta and their incorporation over cotton fabrics to prevent the pathogenicity of Gram negative and Gram positive bacteria.

Textile industry is a major sector providing global financial and employment support to different countries of the world. The major problems of the textile industry are dirt and microbial contaminants affecting the quality of cotton fabrics. Recently, nanoparticles such as silver, chitosan, silicon dioxide, titanium dioxide and zinc oxide have gained attraction in textile industries to avoid the contamination of fabrics through microbes.

Photodegradation of organic pollutants RhB dye using UV simulated sunlight on ceria based TiO nanomaterials for antibacterial applications.

To photo-catalytically degrade RhB dye using solar irradiation, CeO doped TiO nanocomposites were synthesized hydrothermally at 700 °C for 9 hrs. All emission spectra showed a prominent band centered at 442 nm that was attributed to oxygen related defects in the CeO-TiO nanocrystals. Two sharp absorption bands at 1418 cm and 3323 cm were attributed to the deformation and stretching vibration, and bending vibration of the OH group of water physisorbed to TiO, respectively.

Surface enhanced Raman scattering (SERS) of silver ions embedded nanocomposite glass.

Silver nanocomposites (Ag-NCs) glasses are formed by the ion exchange technique of dipping the host matrix in the molten metal salt bath. These ions exchanged glasses are then annealed at different temperatures in air for one hour. They exhibit striking linear and nonlinear optical properties with potential applications in the field of photonics materials.