Palladium nanoparticles in the catalysis of coupling reactions
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.
Experimental and theoretical study of intramolecular O⋯O interaction in structurally rigid β-keto carboxylic esters
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.
Green process development for the preparation of 2,6-dibromo-4-nitroaniline from 4-nitroaniline using bromide–bromate salts in an aqueous acidic medium
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.
Coordination polymer hydrogels through Ag(I)-mediated spontaneous self-assembly of unsubstituted nucleobases and their antimicrobial activity
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.
A calcium catalysed regioselective (5-exo dig) tandem process for the synthesis of fully substituted furans
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.
Design and synthesis of new ultra-low band gap thiadiazoloquinoxaline-based polymers for near-infrared organic photovoltaic application
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.
Magneto-chemotherapy for cervical cancer treatment with camptothecin loaded Fe3O4 functionalized β-cyclodextrin nanovehicle
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.
Top-down synthesis of zinc oxide based inks for inkjet printing
A top-down approach for synthesizing pure and doped inkjet printable metal oxide inks.
The effect of reduced graphene oxide on the catalytic activity of Cu–Cr–O–TiO2 to enhance the thermal decomposition rate of ammonium perchlorate: an efficient fuel oxidizer for solid rocket motors and missiles
Schematic image of rocket having solid composite propellant modified with prepared catalyst.
Amphotericin B-loaded mannose modified poly(D,L-lactide-co-glycolide) polymeric nanoparticles for the treatment of visceral leishmaniasis: in vitro and in vivo approaches
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 highly selective “ON–OFF” probe for colorimetric and fluorometric sensing of Cu2+ in water
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 asymmetric supercapacitors based on cobalt hexacyanoferrate-derived CoS and activated carbon
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.
Efficient esterification of n-butanol with acetic acid catalyzed by the Brönsted acidic ionic liquids: influence of acidity
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.
Multifunctional graphene quantum dots for combined photothermal and photodynamic therapy coupled with cancer cell tracking applications
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 the photopyrolytic cycle of an eminent anticancer drug topotecan inside biocompatible lyotropic liquid crystalline systems
Dynamics of different steps of photopyrolytic processes of an eminent anticancer drug topotecan have been investigated inside different lyotropic liquid crystalline systems.
White light emission from quantum dot and a UV-visible emitting Pd-complex on its surface
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.
Ferrocenyl chalcones with phenolic and pyridyl anchors as potential sensitizers in dye-sensitized solar cells
Five ferrocenyl chalcones with phenolic and pyridyl anchors were prepared and their light harvesting properties explored in dye-sensitized solar cells (DSSCs).
Tuning porous nanostructures of MnCo2O4 for application in supercapacitors and catalysis
A scalable and facile synthesis of MnCo2O4 hierarchical microstructures for applications in supercapacitors and reduction catalysis.
Improved third-order optical nonlinearity and optical limiting behaviour of (nanospindle and nanosphere) zinc ferrite decorated reduced graphene oxide under continuous and ultrafast laser excitation
Nanohybrids consisting of uniform nanospheres and nanospindles of zinc ferrite attached to reduced graphene oxide were prepared by hydrothermal reaction.
Cu ion-exchanged and Cu nanoparticles decorated mesoporous ZSM-5 catalysts for the activation and utilization of phenylacetylene in a sustainable chemical synthesis
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, optical and magnetic properties of a MnII metal–organic framework (MOF) that exhibits high heat of H2 adsorption
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 (Qst) for H2.
An efficient one-pot synthesis of N,N′-disubstituted ureas and carbamates from N-acylbenzotriazoles
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.
Enzyme mimicking inorganic hybrid Ni@MnO2 for colorimetric detection of uric acid in serum samples
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.
Anion responsive and morphology tunable tripodal gelators
Trisamide tripodal derivatives act as low-molecular-weight gelators displaying different morphologies in the absence and presence of anions.
Synthesis of a self-healable and pH responsive hydrogel based on an ionic polymer/clay nanocomposite
This investigation reports the preparation of a pH responsive self-healing nanocomposite hydrogel based on ionic polymer and organically modified montmorillonite (OMMT) clay.
Surface modification of ferrite nanoparticles with dicarboxylic acids for the synthesis of 5-hydroxymethylfurfural: a novel and green protocol
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.
Ruthenium nanoparticles supported over mesoporous TiO2 as an efficient bifunctional nanocatalyst for esterification of biomass-derived levulinic acid and transfer-hydrogenation reactions
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.
Green synthesis of carbon quantum dots from lemon peel waste: applications in sensing and photocatalysis
Water soluble carbon quantum dots were synthesized from lemon peel waste and were used for Cr6+ detection and photocatalytic degradation of methylene blue dye.
Molecular recognition of parallel quadruplex [d-(TTGGGGT)]4 by mitoxantrone: binding with 1 : 4 stoichiometry leads to telomerase inhibition
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.
Selective chromo-fluorogenic molecular sensor for dual channel recognition of Cu2+ and F−: effect of functional group on selectivity
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.
Biomimetic matrix mediated room temperature synthesis and characterization of nano-hydroxyapatite towards targeted drug delivery
Nucleation and growth of hydroxyapatite nanoparticles in the presence of different matrices acting as a potent drug delivery vehicle.
Experimental investigations on NO2 sensing of pure ZnO and PANI–ZnO composite thin films
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.
A broad spectrum photon responsive, paramagnetic β-NaGdF4:Yb3+,Er3+ – mesoporous anatase titania nanocomposite
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.
Experimental determination and model correlation for the solubilities of trialkyl phosphates in supercritical carbon dioxide
The solubilities of a series of trialkyl phosphates in supercritical carbon dioxide have been investigated.
Broadband enhancement in absorption cross-section of N719 dye using different anisotropic shaped single crystalline silver nanoparticles
Schematic representing broadband enhancement in absorption cross-section of N719 dye using different anisotropic shaped single crystalline silver nanoparticles.
Tunable room temperature magnetoelectric response of SmFeO3/poly(vinylidene fluoride) nanocomposite films
SmFeO3/poly(vinylidene fluoride) composite films exhibit tunable magnetoelectric effects induced by strong strain interactions at the interfaces.
Novel hydrothermal synthesis of MoS2 nanocluster structure for sensitive electrochemical detection of human and environmental hazardous pollutant 4-aminophenol
A trace level electrochemical detection platform for the determination of environmentally hazardous pollutant 4-aminophenol at MoS2 nanoclusters is reported.
A newly designed softoxometalate [BMIm]2[DMIm][α-PW12O40]@hydrocalumite that controls the chain length of polyacrylic acid in the presence of light
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.
Exploring the thermodynamics and conformational aspects of nicotinic acid binding with bovine serum albumin: a detailed calorimetric, spectroscopic and molecular docking study
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.
CO2 fixation at atmospheric pressure: porous ZnSnO3 nanocrystals as a highly efficient catalyst for the synthesis of cyclic carbonates
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.
β-Cyclodextrin supported MoO3–CeO2 nanocomposite material as an efficient heterogeneous catalyst for degradation of phenol
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.
Zinc oxide quantum dots: multifunctional candidates for arresting C2C12 cancer cells and their role towards caspase 3 and 7 genes
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.
Enhanced luminescence efficiency of aqueous dispersible NaYF4:Yb/Er nanoparticles and the effect of surface coating
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 biodegradable, biocompatible transdermal device derived from carboxymethyl cellulose and multi-walled carbon nanotubes for sustained release of diclofenac sodium
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.
Regulation of acidogenic metabolism towards enhanced short chain fatty acid biosynthesis from waste: metagenomic profiling
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.
Aminal linked inorganic–organic hybrid nanoporous materials (HNMs) for CO2 capture and H2 storage applications
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.
Enhancement of dielectric, ferroelectric and magneto-dielectric properties in PVDF–BaFe12O19 composites: a step towards miniaturizated electronic devices
Appreciable increase in the dielectric permittivity in PVDF has been achieved in BaFe12O19 composites.
Palladium nanoparticles immobilized on an amine-functionalized MIL-101(Cr) as a highly active catalyst for oxidative amination of aldehydes
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.
Rapid synthesis of alkylaminophenols via the Petasis borono–Mannich reaction using protonated trititanate nanotubes as robust solid–acid catalysts
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.
Sisal-derived activated carbons for cost-effective lithium–sulfur batteries
Elemental sulfur was successfully impregnated in an activated carbon (AC) matrix obtained from sisal fibers.
Hydrolytically stable ZIF-8@PDMS core–shell microspheres for gas–solid chromatographic separation
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.
Micelle-templated synthesis of Pt hollow nanospheres for catalytic hydrogen evolution
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.
Synthesis and characterization of graphene from waste dry cell battery for electronic applications
Electronic applications of graphene synthesized from graphite electrode of waste dry cell battery.
Microwave-assisted synthesis of 3-sulfenylindoles by sulfonyl hydrazides using organic ionic base-Brønsted acid
3-Sulfenylation of indoles by sulfonyl hydrazides using organic ionic base-Bronsted acid sulfonyl hydrazides as thiol surrogate.
Down shifting and quantum cutting from Eu3+, Yb3+ co-doped Ca12Al14O33 phosphor: a dual mode emitting material
We report the quantum cutting (QC) in a Eu3+, Yb3+ co-doped Ca12Al14O33 phosphor synthesized through combustion method.
Solution chemistry-based nano-structuring of copper dendrites for efficient use in catalysis and superhydrophobic surfaces
Solution chemistry-based nano-structuring of Cu dendrites is exploited to enhance their efficiency in applications of catalysis and superhydrophobicity.
Fabrication and characterization of a collagen coated electrospun poly(3-hydroxybutyric acid)–gelatin nanofibrous scaffold as a soft bio-mimetic material for skin tissue engineering applications
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.
Glucose oxidase stabilized fluorescent gold nanoparticles as an ideal sensor matrix for dual mode sensing of glucose
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.
Fatty acid ionic liquids as environmentally friendly lubricants for low friction and wear
Tetrabutylammonium-fatty acids ionic liquids as lubricants exhibited significantly lower friction compared to polyol ester lube base oil.
Chemiresistive gas sensor for the sensitive detection of nitrogen dioxide based on nitrogen doped graphene nanosheets
Nitrogen doped graphene nanosheet coated interdigitated electrodes for sensitive detection of NO2 gas at room temperature.
Band gap modified boron doped NiO/Fe3O4 nanostructure as the positive electrode for high energy asymmetric supercapacitors
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.
About this collection
Guest Edited by Professor Amitava Das (CSIR-Central Salt & Marine Chemicals Research Institute, India).
We are delighted to share the top articles in this Editors Web Collection from RSC Advances by Indian researchers published in 2016-2018. Each contribution is an ensemble of the top cited articles from a variety of topics in chemical sciences that illustrate the innovative themes and the high quality of research published in RSC Advances from India. We hope this collection will provide an enjoyable and useful reading and will encourage publication of more exciting work in RSC Advances.