Publications by authors named "K T Sreekanth"

Recent advancements in material science have aimed to create novel nanomaterials with unique properties and potential applications across diverse domains. By deciphering the complexities of the versatile nanomaterial, MgO, the study aims to deepen our comprehension of the synergistic effects induced by dual doping in MgO, thus propelling the advancement of innovative technologies and materials with broad applications. The present investigation employed a facile chemical precipitation and coprecipitation approach to synthesize pure MgO and Ni, Zn dual doped MgO, varying Ni concentration ranging between 2% and 10% and maintaining a constant Zn concentration at 20%.

View Article and Find Full Text PDF

This work looks into how well Cu-doped zinc oxide works as a photocatalyst when exposed to visible light to break down sulphanilamide. The synthesized samples were characterized by XRD and then FTIR techniques for structural besides compositional analysis. The approximate value of bandgap found out by NBE values of PL spectra showed a decrease in bandgap with doping.

View Article and Find Full Text PDF

Thin-film coatings offer a scalable optical platform, as compared to nanopatterned films, for various applications including structural coloring, photovoltaics, and sensing. Recently, Fano resonant optical coatings (FROCs) have gained attention. FROCs consist of coupled thin film nanocavities composed of a broadband and a narrowband optical absorber.

View Article and Find Full Text PDF

The phase singularity, a sudden phase change occurring at the reflection zero is widely explored using various nanophotonic systems such as metamaterials and thin film cavities. Typically, these systems exhibit a single reflection zero with a phase singularity at a specific incident angle, particularly at larger angles of incidence (>50 degrees). However, achieving multiple phase singularities at a single incident angle remains a formidable challenge.

View Article and Find Full Text PDF
Article Synopsis
  • - Transmesentric hernias involve the bowel looping through a defect in the mesentery and can cause small bowel obstruction, leading to high mortality due to delayed diagnosis.
  • - A case series detailed four patients, including three children and one preterm neonate, all presenting with bowel obstruction symptoms and requiring emergency surgery to address the hernia and remove gangrenous bowel.
  • - Timely surgical intervention is crucial, as traditional diagnostic methods may not clearly identify this rare condition, making it essential to consider transmesentric hernias in differential diagnoses for pediatric bowel obstructions.
View Article and Find Full Text PDF