Themed collection Editors Collection for RSC Advances - India

Palladium catalyzed coupling reactions have emerged as a versatile, convenient, selective and mild protocol that can usually be adapted in any synthetic scheme for important target molecules with various degrees of structural complexity.

Herein, we present our experimental and theoretical study on the crystal structures of quinolone carboxylate and bisethoxycarbonylvinylanilines, which gives an insight into the origin of the attractive or repulsive nature of O⋯O interactions.

Organic solvent-free process for the preparation of 2,6-dibromo-4-nitroaniline, from 4-nitroaniline using 2 : 1 bromide–bromate salts under aqueous acidic medium at ambient conditions has been developed.

The formation of effective antimicrobial metallogels through Ag(I) ion mediated self-assembly of unsubstituted nucleobases is reported. The Ag–pyrimidine gels could further reduce Ag⁺ ions to Ag nanoparticles decorated along the nanofibers.

An efficient and highly regioselective synthesis of fully substituted furans has been described using Ca(OTf)₂. The reaction proceeds through tandem alkylation, 5-exo dig cyclisation and isomerization under solvent free conditions.

Two D–A copolymers, F1 and F2, with fluorene and thiazole units were substituted, respectively, on a thiadiazoloquinoxaline (TDQ) unit to enhance the electron-accepting strength of TDQ.

We portray a novel way to synthesis of iron oxide magnetic nanoparticle incorporated β-cyclodextrin (β-CD) nanocarrier stabilized by ethylenediamine tetra acetic acid (EDTA) obtaining remarkable biocompatibility and biodegradability.

A top-down approach for synthesizing pure and doped inkjet printable metal oxide inks.

Schematic image of rocket having solid composite propellant modified with prepared catalyst.

Amphotericin B-loaded mannose modified PLGA nanoparticles are more efficacious in the treatment of visceral leishmaniasis in both in vitro and in vivo models than unmodified nanoformulations.

A new diformyl phenol based probe for selective detection of Cu²⁺ in aqueous medium, applicable for cell imaging in Vero cells. Theoretical studies were performed to establish the underlying keto–enol tautomerism and optimization of the Cu²⁺ complex.

All-solid-state flexible asymmetric supercapacitors fabricated using CoS and AC showed a high cell voltage, high specific capacitance, and high energy density of 5.3 W h kg⁻¹ with excellent electrochemical stability.

BAILs having different structures and their related acidities have been investigated for their role in the esterification of n-butanol with acetic acid, and it was found that IL-5 containing double –SO₃H groups exhibits excellent catalytic activity.

An Indian fig tree serves as a green factory by providing withered leaves as a carbon source for graphene quantum dots synthesis. The quantum dots are multi-functional and have tremendous theranostic biomedical applications.

Dynamics of different steps of photopyrolytic processes of an eminent anticancer drug topotecan have been investigated inside different lyotropic liquid crystalline systems.

Near white light emission (CIE 0.35, 0.29) has been achieved as a combination of intraligand transition, aggregate induced emission and dopant emission followed by surface complexation on Qdot surface.

Five ferrocenyl chalcones with phenolic and pyridyl anchors were prepared and their light harvesting properties explored in dye-sensitized solar cells (DSSCs).

A scalable and facile synthesis of MnCo₂O₄ hierarchical microstructures for applications in supercapacitors and reduction catalysis.

Nanohybrids consisting of uniform nanospheres and nanospindles of zinc ferrite attached to reduced graphene oxide were prepared by hydrothermal reaction.

Highly dispersed Cu nanoparticles supported on the large external surface of Meso-ZSM-5 exhibited excellent activity in the selective synthesis of indolizines, chalcones, and triazoles using phenylacetylene as one of the building blocks.

Green synthesis of a 3D, Mn(II) MOF, [Mn₃(NDC)₃(DMA)₄]_n (1) has been achieved by employing mechanochemical and sonochemical routes and 1′ exhibits an interesting gas uptake properties with a high value of isosteric heat of adsorption (Q_st) for H₂.

A facile one-pot synthesis of carbamates and N,Nʹ-disubstituted symmetrical ureas from N-acylbenzotriazoles has been devised. It is believed that, the intermediate acyl-azide undergo Curtius rearrangement.

Reliable and inexpensive detection of uric acid in the absence of any peroxide or enzyme is very challenging for the development of a new cost effective clinical method.

Trisamide tripodal derivatives act as low-molecular-weight gelators displaying different morphologies in the absence and presence of anions.

This investigation reports the preparation of a pH responsive self-healing nanocomposite hydrogel based on ionic polymer and organically modified montmorillonite (OMMT) clay.

5-Hydroxymethylfurfural (5-HMF) has been synthesized under solvent free conditions using surface modified ferrite nanoparticles. The flexible ligand modified ferrites showed higher activity than rigid modified ferrites.

Ru NPs supported over mesoporous TiO₂ nanocatalyst and its catalytic activity was evaluated in the esterification of levulinic acid and selective transfer hydrogenation of nitroarenes.

Water soluble carbon quantum dots were synthesized from lemon peel waste and were used for Cr⁶⁺ detection and photocatalytic degradation of methylene blue dye.

NMR and CD studies show that anti-cancer drug mitoxantrone (MTX) binds to parallel G-quadruplex DNA [d-(TTGGGGT)₄] as stacked dimer at grooves leading to increase in thermal stabilization of DNA by ~25 °C and inhibits telomerase with IC₅₀ = 2 μM.

The amido-Schiff base (3-hydroxy-naphthalene-2-carboxylic acid(4-cyano-benzylidene)-hydrazide) shows dual mode sensibility towards Cu²⁺ and F⁻. It can detect Cu²⁺ in HEK 293 cells and F⁻ in tooth paste and in solid state.

Nucleation and growth of hydroxyapatite nanoparticles in the presence of different matrices acting as a potent drug delivery vehicle.

In the present work, comparative investigations on NO₂ gas sensing properties of the hybrid nanocomposite thin films of polyaniline (PANI), ZnO and PANI–ZnO towards NO₂ gas at room temperature have been reported.

Herein, we report a novel single multifunctional platform based on broad-spectrum photoactive β-NaGdF₄:18% Yb³⁺, 2% Er³⁺ and mesoporous anatase TiO₂ for enhanced energy and simultaneous biomedical applications.

The solubilities of a series of trialkyl phosphates in supercritical carbon dioxide have been investigated.

Schematic representing broadband enhancement in absorption cross-section of N719 dye using different anisotropic shaped single crystalline silver nanoparticles.

SmFeO₃/poly(vinylidene fluoride) composite films exhibit tunable magnetoelectric effects induced by strong strain interactions at the interfaces.

A trace level electrochemical detection platform for the determination of environmentally hazardous pollutant 4-aminophenol at MoS₂ nanoclusters is reported.

We have controlled the radical as well as cationic polymerization of acrylic acid using [BMIm]₂[DMIm][α-PW₁₂O₄₀]@hydrocalumite (SOM 2) as a photocatalyst.

An attempt to obtain a physicochemical and conformational outlook on the binding interaction of vitamin B₃ (NA) with a model transport protein BSA using calorimetry, light scattering, molecular docking, and spectroscopic techniques.

Self-assembled, ultra small, porous zinc stannate nanocrystals have been synthesized, which catalyzes the formation of cyclic carbonates from various epoxide and CO₂ under very mild reaction conditions.

The β-cyclodextrin supported MoO₃–CeO₂ nanocomposite material is an efficient heterogeneous catalyst for the degradation of phenol to non-toxic pollutants at room temperature with continuous stirring and without light irradiation.

Recently, nanoscale (<100 nm) inorganic materials, especially spherical shaped zinc oxide (ZnO-QDs), have received a lot of attention from the broad community because of their potential utilization in various technologies.

In a general approach, we designed and synthesized monodisperse, well-defined, highly emissive and aqueous dispersible NaYF₄:Yb/Er upconversion nanoparticles, and thereafter their surfaces were coated with inert NaYF₄ and silica layers.

A hybrid nanocomposite hydrogel (CMC–MWCNT) has been fabricated using carboxymethyl cellulose (CMC) and acid-functionalized multi-walled carbon nanotubes (MWCNTs) at room temperature for transdermal delivery of diclofenac sodium.

To enhance short chain carboxylic (volatile fatty) acids production from food waste, the present study evaluates a strategy for selective enrichment of the biocatalyst by exposing it to acid-shock.

Cyclophosphazene based nitrogen-rich aminal-linked inorganic–organic hybrid nanoporous materials were synthesized by a Schiff-base condensation reaction, which captures 18.9 wt% of CO₂.

Appreciable increase in the dielectric permittivity in PVDF has been achieved in BaFe₁₂O₁₉ composites.

Palladium nanoparticles has effectively immobilized onto amine-functionalized MIL-101(Cr) by polyol approach. The resulting Pd/NH₂-MIL-101(Cr) acts as a heterogeneous catalyst for oxidative amination of aldehydes under solvent-free conditions.

The Petasis borono–Mannich reaction was applied to the synthesis of alkylaminophenols from o-hydroxybenzaldehydes, secondary amines and boronic acids in the presence of H₂Ti₃O₇ nanotubes as reusable solid–acid catalysts.

Elemental sulfur was successfully impregnated in an activated carbon (AC) matrix obtained from sisal fibers.

Metal organic frameworks (MOFs) with exceptionally high surface areas, shape selectivity and availability of multiple active sites are suitable materials to serve as solid stationary phase for chromatographic applications.

We report an efficient, mild and simple strategy for the fabrication of colloidal hollow platinum nanospheres with the ability to tune wall-thickness and void-space over several nanometers, for application in hydrogen evolution from ammonia–borane.

Electronic applications of graphene synthesized from graphite electrode of waste dry cell battery.

3-Sulfenylation of indoles by sulfonyl hydrazides using organic ionic base-Bronsted acid sulfonyl hydrazides as thiol surrogate.

We report the quantum cutting (QC) in a Eu³⁺, Yb³⁺ co-doped Ca₁₂Al₁₄O₃₃ phosphor synthesized through combustion method.

Solution chemistry-based nano-structuring of Cu dendrites is exploited to enhance their efficiency in applications of catalysis and superhydrophobicity.

The collagen coated nanofibrous scaffold mimics the function of the extra cellular matrix with good biocompatibility, cell adhesion, cell proliferation and aids to provide as a promising tool in skin tissue engineering application.

A simple, facile and green route for the preparation of glucose oxidase stabilized simple Au NPs and fluorescent Au NPs for the dual mode bio-sensing application of glucose using colourimetric and electrochemical methods is demonstrated.

Tetrabutylammonium-fatty acids ionic liquids as lubricants exhibited significantly lower friction compared to polyol ester lube base oil.

Nitrogen doped graphene nanosheet coated interdigitated electrodes for sensitive detection of NO₂ gas at room temperature.

A boron doped NiO/Fe₃O₄ nanostructure was successfully synthesized by a facile one-step hydrothermal method and used as the positive electrode material in asymmetric supercapacitor.