Anandarup Goswami

Vignan’s Foundation for Science, Technology and Research (VFSTR) Vadlamudi, Guntur 522 213, Andhra Pradesh, INDIA

Coconut (Cocos nucifera) coir is an abundant agricultural waste prevalent worldwide. Utilization of this waste has been carried out in this study by obtaining nanocellulose (NC) fibres for wastewater remediation purposes. Nanocellulose was obtained from coconut coir using bleaching and acid–alkali treatments followed by ultrasonication and lyophili...

In addition to understanding the mechanism of action for a specific drug candidate, information regarding degradation pathways/products under various stress conditions is essential to know about their short- and long-term effects on health and environment. In line with that, tenofovir disoproxil fumarate (TDF, a co-crystal form of the prodrug tenof...

Coconut (cocos mucifera) coir is an abundant agricultural waste prevalent worldwide. Utilization of this waste has been carried out in this study by obtaining nanocellulose (NC) fibres for waste water remediation purposes. Nanocellulose was obtained from coconut coir using bleaching, acid-alkali treatments followed by ultrasonication and lyophiliza...

Development of sustainable approaches has become essential for the long‐term persistence of any chemical process. In that respect, “12 rules of green chemistry” offer strategies and foundations for making the methods greener. Among them, the involvement of catalysts has improved the status of chemical transformations significantly in the context of...

The nanocatalytic applications have revolutionized the field of catalysis (primarily the heterogeneous one) because of the unique size- and shape-dependent properties and higher surface area of the nanomaterials along with the possibility of controlling their surface properties using simple surface modifications. Consequently, the appropriate surfa...

Flexible electronic devices entail highly transparent and conducting electrodes with excellent adherent and mechanically robust properties along with excellent bendability. Here, we report the development of transparent and conducting electrodes comprising silver nanowires (AgNWs) and amorphous-titanium oxide (a-TiOx) nanocomposite thin films. The...

The dwindling supply of renewables, coupled with the alarming negative impacts of the available resources raises serious concerns about the sustainability of the chemical and physical processes. Thus, it becomes imperative to find alternative options to such processes to make the processes greener and hence more sustainable. Though the sustainable...

The emergence of carbon quantum dots (CQDs) opens up new opportunities in different branches of science and technology primarily because of their conducive biocompatibility, tunable bandgaps, and unique optoelectronic properties, namely, photoluminescence (PL) and fluorescence. Although CQDs are given precedence in the literature, the large-scale s...

Fixation of atmospheric carbon-di-oxide (CO2) by metal complexes continuously receives a great deal of attention from the viewpoint of environmental concerns. Herein, a novel tetranuclear copper (II) cluster [Cu4 μ3-(mph)4 μ2-(HCO2)2] (ClO4)2.CH2Cl2 (1), synthesized using Methyl(6-hydroxymethyl)picolinate ligand (Hmhp) and Cu(ClO4)2•6H2O in the pre...

Titanium dioxide (TiO2) thin films were rapidly coated on Corning glass substrates from the precursor solution using the wire-bar technique at the room temperature and then post-annealed at 400, 500 and 600 °C for 1 h under atmospheric conditions. The structural, morphological, optical, wettability and photocatalytic properties of the films were st...

The recent progress in metal nanoparticle-based catalytic systems has prompted the research community to focus on combining the unique physicochemical properties with their catalytic activities. In this context, magnetic nanomaterials offer significant advantage as they can be separated after the catalytic reaction and reused. Among such systems, F...

The field of 2-dimensional (2D) materials has witnessed a sharp growth since its inception and can majorly be attributed to the substantial technical and scientific developments, leading to significant improvements in their syntheses, characterization and applications. In the list of 2D materials, the relatively newer addition is phosphorene, which...

The current and estimated energy demand and their potential sources of supply indicate a daunting future for humanity on the planet unless sustainable solutions are developed. The scarcity, high cost and the potential environmental and health concerns related to widely used noble-metals make the situation even worse. Thus, active participation from...

Light-driven processes such as photocatalytic environmental remediation and photoelectrochemical (PEC) water splitting to produce hydrogen under sunlight are key technologies towards energy sustainability. Despite enormous efforts, a suitable photocatalyst fulfilling all the main requirements such as high photoactivity under visible light, chemical...

Efficient and general protocols for the O-tert-boc protection and O-arylation of phenols were developed in this paper using a recyclable magnetic Fe3O4-Co3O4 nanocatalyst (Nano-Fe-Co), which is easily accessible via simple wet impregnation techniques in aqueous mediums from inexpensive precursors. The results showed the catalysts were well characte...

High surface area TiO2 nanotubes (TNTs) were used as a catalyst support for well dispersed, stable and ultra-small (3–5 nm) Pt nanoparticles (Pt@TNTs) for the reduction of olefins. Pt@TNT catalyst was synthesized by a simple soaking of anodized TNTs in the chloroplatinic (H2PtCl6) acid solution. Various techniques such as XRD, SEM, TEM, and XPS wer...

Over the past years, α‐Fe2O3 (hematite) has re‐emerged as a promising photoanode material in photoelectrochemical (PEC) water splitting. In spite of considerable success in obtaining relatively high solar conversion efficiency, the main drawbacks hindering practical application at hematite are related to an intrinsically hampered charge transport a...

In the last few decades, the emission of carbon dioxide (CO2) in the environment has caused havoc across the globe. One of the most promising strategies for fixation of CO2 is the cycloaddition reaction between epoxides and CO2 to produce cyclic carbonates. For the first time, we have fabricated copper-based magnetic nanocatalyst and have applied f...

We present a facile synthetic method that yields [email protected]xP core-shelltype heterogeneous nanostructures with excellent oxygen evolution reaction (OER) activity. This nanocatalyst can deliver a current density of 10 mA/cm² at a small overpotential of 310 mV and exhibits high catalytic stability. Additionally, the catalytic activity of [emai...

Editorial in Nanomedicine & Nanotechnology Open Access in Medwin Publishers

Effective and economic coating of polymeric materials onto steel protects it from corrosion. Among the choices, polybenzoxazines emerged as one of the most promising candidates for such purposes because of their low water adsorption, high thermal stability, zero volume shrinkage, and low flammability. In this current work, silane-functionalized bis...

We present the first bottom-up approach to synthesize Fe(III)-functionalized carbon dots (CDs) from molecular precursors without the need of conventional thermal or microwave treatment and additional reagents. Specifically, sonication of xylene in the presence of anhydrous FeCl3 results in oxidative coupling of the aromatic substrate towards Fe(III...

The development of highly active and stable earth-abundant catalysts to reduce or eliminate the reliance on noble-metal based ones in green and sustainable (electro)chemical processes is nowadays of great interest. Here, N-, O-, and S-tridoped carbon-encapsulated Co9S8 (Co9S8@NOSC) nanomaterials are synthesized via simple pyrolysis of S- and Co(II)...

Core-shell nanocatalysts are distinctive class of nanomaterials with varied potential applications in view of their unique structure and composition-dependent physico-chemical properties and promising synergism among the individual components. A one-pot microwave (MW)-assisted approach is described to prepare the reduced graphene oxide (rGO)-suppor...

We report the fabrication of 3D hierarchical hetero-nanostructures composed of thin α-Fe2O3 nanoflakes branched on TiO2 nanotubes. The novel α-Fe2O3/TiO2 hierarchical nanostructures, synthesized on FTO through a multi-step hydrothermal process, exhibit enhanced performances in photo-electrochemical water splitting and in the photocatalytic degradat...

This study describes a novel approach for the in situ synthesis of metal oxide-polyelectrolyte nanocomposites formed via impregnation of hydrated polyelectrolyte films with binary water/alcohol solutions of metal salts and consecutive reactions that convert metal cations into oxide nanoparticles embedded within the polymer matrix. The method is dem...

This study describes a novel approach for the in situ synthesis of metal oxide–polyelectrolyte nanocomposites formed via impregnation of hydrated polyelectrolyte films with binary water/alcohol solutions of metal salts and consecutive reactions that convert metal cations into oxide nanoparticles embedded within the polymer matrix. The method is dem...

A variety of Titanium dioxide (TiO 2 ) phases and nanostructures have been explored for their applications in photoelectrochemical cells (PECs) for solar-driven water splitting. In this case, anatase phase and TiO 2 nanotubes offer significant advantages especially for PEC-based applications. Though, significant efforts have already been engaged to...

The applications of copper (Cu) and Cu-based nanoparticles, which are based on the earth-abundant and inexpensive copper metal, have generated a great deal of interest in recent years, especially in the field of catalysis. The possible modification of the chemical and physical properties of these nanoparticles using different synthetic strategies a...

The applications of copper (Cu) and Cu-based nanoparticles, which are based on the earth-abundant and inexpensive copper metal, have generated a great deal of interest in recent years, especially in the field of catalysis. The possible modification of the chemical and physical properties of these nanoparticles using different synthetic strategies a...

Hydrazine is often regarded as one of the most appealing fuels for fuel cells due to its high energy content, and also because it gives off only environmentally benign byproducts when it is used in fuel cells (cf. many other fuels produce the greenhouse gas CO2). However, current electrocatalysts for the hydrazine oxidation reaction (HOR) in direct...

Core–shell nanoparticles (CSNs) are a class of nanostructured materials that have recently received increased attention owing to their interesting properties and broad range of applications in catalysis, biology, materials chemistry and sensors. By rationally tuning the cores as well as the shells of such materials, a range of core–shell nanopartic...

Model drug-loaded mesoporous silica nanoparticles (MSNs) that are responsive to the pH rather than the redox changes related to glutathione (GSH) are prepared using surfactant-free MSNs as precursor. The nanoparticles are successfully shown to serve as GSH-triggered release vehicles for the guest molecules. Unlike the generally known GSH-based redo...

Using renewable resources to make various synthetic materials is intensifying in order to meet some of our sustainability challenges. Yeast is one of the most common household ingredients, which is cheap and easy to reproduce. Herein we report that yeast cells can be thermally transformed into hollow, core-shell heteroatom-doped carbon microparticl...

Chemical functionalization of low-dimensional materials such as nanotubes, nanowires and graphene leads to profound changes in their properties and is essential for solubilizing them in common solvents. Covalent attachment of functional groups is generally achieved at defect sites, which facilitate electron transfer. Here, we describe a simple and...

The success of the so-called “hydrogen economy” for large-scale applications will ultimately depend on efficient and sustainable production, storage and distribution of hydrogen. Owing to its low toxicity, high volumetric H2 storage capacity and availability both from renewable resources (e.g., biomass) as well as non-renewable resources (e.g., fos...

We demonstrate that polypyrrole-derived nitrogen and oxygen co-doped mesoporous carbons can serve as efficient, metal-free electrocatalysts for hydrazine oxidation reaction, with low overpotential and high current density. The materials' structures and the nature and type of their dopants in them, which can be controlled by varying the synthetic co...

The pore size and pore structure of nanoporous materials can affect the materials' physical properties, as well as potential applications in different areas, including catalysis, drug delivery, and biomolecular therapeutics. KCC-1, one of the newest members of silica nanomaterials, possesses fibrous, large pore, dendritic pore networks with wide po...

Despite being technically possible, splitting water to generate hydrogen is still practically unfeasible due mainly to the lack of sustainable and efficient catalysts for the half reactions involved. Herein we report the synthesis of cobalt-embedded nitrogen-rich carbon nanotubes (NRCNTs) that 1) can efficiently electrocatalyze the hydrogen evoluti...

Despite being technically possible, splitting water to generate hydrogen is still practically unfeasible due mainly to the lack of sustainable and efficient catalysts for the half reactions involved. Herein we report the synthesis of cobalt-embedded nitrogen-rich carbon nanotubes (NRCNTs) that 1) can efficiently electrocatalyze the hydrogen evoluti...

The synthesis and investigation of the catalytic properties of Au nanoparticles (AuNPs) is an area of intense research. Despite much effort being made to this field, attaining both high catalytic activity and selectivity at the same time remains elusive. Herein a new mild reductive thiolate-deprotection strategy is reported to prepare nanoporous si...

Although caffeine is well-known as an antioxidant and a psychoactive stimulant, its antioxidative properties and biological activities under various conditions are still largely unknown. The same can be said about caffeine’s isomer, isocaffeine, whose properties have been even less investigated. Furthermore, much remains unknown about the potential...

Replacing rare and expensive noble metal catalysts with inexpensive and earth-abundant ones for various re-newable energy-related chemical processes as well as for production of high value chemicals is one of the major goals of sustainable chemistry. Herein we show that a bimetallic zinc-cobalt layered double hydroxide (Zn-Co-LDH) can serve as an e...

A synthetic route to low-density porous Ni-doped Co3O4 nanomaterials that show stable and superior electrocatalytic activity for O2 evolution reaction is reported. The materials are prepared via thermal treatment of "pre-synthesized" metal ions-embedded graphitic C3N4-based polymers.

We describe the development and application of efficient bifunctional acid–base mesoporous silica catalysts, denoted hereafter as Ext-SBA-15-NMe2, comprising tertiary amine and silanol (weak acid) groups for the Michael addition reaction. The catalysts were synthesized by grafting tertiary amine containing organosilane into the mesoporous channel p...

In vivo and in vitro systems were employed to investigate the biocompatibility of two forms of calcined mesoporous silica microparticles, MCM41-cal and SBA15-cal, with ventricular myocytes. These particles have potential clinical use in delivering bioactive compounds to the heart. Ventricular myocytes were isolated from 6 to 8 week male Wistar rats...

The method of continuous variation in conjunction with (6)Li NMR spectroscopy was used to characterize lithium phenolates solvated by tetrahydrofuran and 1,2-dimethoxyethane. The strategy relies on the formation of ensembles of homo- and heteroaggregated phenolates. The symmetries and concentration dependencies of the heteroaggregates attest to the...

A general method for preparing site-isolated polymeric catalysts is presented. Linear chloromethyl and azide polymers have been sequestered within polyurea microcapsules and small molecule catalysts soaked through the shell walls to functionalize the soluble polymers. Reaction onto each type of support is quantitative and MacMillan, DMAP, and TEMPO...