All-Metal Metamaterial-Based Sensor with Novel Geometry and Enhanced Sensing Capability at Terahertz Frequency.

This research proposes an all-metal metamaterial-based absorber with a novel geometry capable of refractive index sensing in the terahertz (THz) range. The structure consists of four concentric diamond-shaped gold resonators on the top of a gold metal plate; the resonators increase in height by 2 µm moving from the outer to the inner resonators, making the design distinctive. This novel configuration has played a very significant role in achieving multiple ultra-narrow resonant absorption peaks that produce very high sensitivity when employed as a refractive index sensor.

A Potent Bis-Heteroleptic Ruthenium(II) Complex-Based Chalcogen Bonding Receptor for Selective Sensing of Phosphates.

The incorporation of a selenoimidazolium-based chalcogen bond (ChB) donor into a bis-heteroleptic Ru(II) complex (Ru-Se) has been designed for the first time to explore its anion-sensing properties and understand its selectivity to specific classes of anions. Photophysical studies demonstrate the receptor's selectivity toward phosphates, while H NMR displays its ability to recognize both I and HPO among the different halides and oxoanions through ChB interaction in CHCN and dimethyl sulfoxide- solvents, respectively. Additionally, microscopic studies such as DLS and TEM reveal that the selective turn-on sensing of HPO and HPO compared to I is driven by supramolecular aggregation behavior.

Cross-Coupling Reactions with Nickel, Visible Light, and -Butylamine as a Bifunctional Additive.

Transition metal catalysis is crucial for the synthesis of complex molecules, with ligands and bases playing a pivotal role in optimizing cross-coupling reactions. Despite advancements in ligand design and base selection, achieving effective synergy between these components remains challenging. We present here a general approach to nickel-catalyzed photoredox reactions employing -butylamine as a cost-effective bifunctional additive, acting as the base and ligand.

Exploring the anti-diabetic potential of : isolation and characterization of bioactive compounds.

We investigated the anti-diabetic effects of the ethyl acetate fraction of and its isolated compounds using both and study models. tests showed that the ethyl acetate part of and its separate compounds had better activity blocking α-glucosidase, α-amylase, and α-lipase. The ethyl acetate fraction and its active constituents, barbaloin and gallic acid, significantly ( < 0.

Author Response: Insights into Immunomodulatory Therapy for Sepsis.

Ghosh I, Sangha SS, Pandey G, Srivastava A. Author Response: Insights into Immunomodulatory Therapy for Sepsis. Indian J Crit Care Med 2025;29(1):91.