In this work, it is proposed an environmental friendly sonophotocatalytic approach to efficiently treat polluted waters from industrial dyes exploiting ZnO micro- and nano-materials. For the first time, we deeply investigated generation of reactive oxygen species (ROS) under ultrasound stimulation different structures by Electron Paramagnetic Resonance Spectroscopy (EPR). Indeed, five zinc oxide (ZnO) nano-structures, i.e. Desert Roses (DRs), Multipods (MPs), Microwires (MWs), Nanoparticles...

Abstract Five new polymorphs and one hydrated form of 2‐thiobarbituric acid have been isolated characterised by solid‐state methods. In both the crystalline II in hydrate form, molecules are present enol whereas only keto isomer is forms I (reported 1967 Calas Martinex), III , V VI . IV on other hand, a 50:50 ordered mixture enol/keto present. All single‐crystal X‐ray diffraction, 1D 2D ( 1 H, 13 C, 15 N) NMR spectroscopy, Raman spectroscopy powder diffraction at variable temperature. It has...

In the present paper, we use zinc oxide nanoparticles under excitation of ultraviolet (UV) light for generation Reactive Oxygen Species (ROS), with aim further using these species fighting cancer cells in vitro. Owing to difficulties obtaining highly dispersed (NPs) biological media, propose their coating a double-lipidic layer and evaluate colloidal stability comparison pristine NPs. Then, Electron Paramagnetic Resonance (EPR) coupled spin-trapping technique, demonstrate characterize...

We report on an easy, fast, eco-friendly, and reliable method for the synthesis of reduced graphene oxide/SnO2 nanocomposite as cathode material application in microbial fuel cells (MFCs). The was prepared starting from oxide that has been to during hydrothermal nanocomposite, carried out a microwave system. Structural morphological characterizations evidenced formation sheets, with SnO2 crystals few nanometers integrated matrix. Physico-chemical analysis revealed nanoparticles, well...

The discovery of novel catalytic materials showing unprecedented properties and improved functionalities represents a major challenge to design advanced oxidation processes for wastewater purification. In this work, antimony (Sb) doping is proposed as powerful approach enhancing the photo- piezocatalytic performances piezoelectric zinc oxide (ZnO) thin films. To investigate role played by dopant, degradation Rhodamine-β (Rh-β), dye pollutant widely present in natural water sources, studied...

Oxidative stress represents a common issue in most neurological diseases, causing severe impairments of neuronal cell physiological activity that ultimately lead to neuron loss function and cellular death. In this work, lipid-coated polydopamine nanoparticles (L-PDNPs) are proposed both as antioxidant neuroprotective agents, photothermal conversion platform able stimulate activity. L-PDNPs showed the ability counteract reactive oxygen species (ROS) accumulation differentiated SH-SY5Y,...

Abstract Nowadays, Li–S batteries are considered as one of the most promising alternatives to Li-ion technology in near future, thanks their high specific capacity and significantly lower environmental impact production costs. Consequently, many efforts have been directed tackle with inherent issues that affect batteries. One main problems is so-called shuttle effect, which basically entails unwanted migration lithium polysulfides (LiPSs) from cathode anode side, causing degradation cell....

Dye-sensitized solar cells assembled with aqueous electrolytes are emerging as a sustainable photovoltaic technology suitable for safe indoor and portable electronics use. While the scientific community is exploring unconventional materials preparing electrodes electrolytes, this work presents first study on zinc oxide semiconductor material to fabricate photoanodes cells. Different morphologies (

Polyaniline (PANI) was synthesised by oxidation polymerization starting from aniline dimer, thus avoiding the use of a toxic/mutagenic substance such as aniline. In order to work in an aqueous phase, polystyrene sulphonate (PSS) used emulsioning/doping agent. The fine tuning oxidant quantity allowed production PANI mixed leucoemeraldine/emeraldine states. PANI/PSS solubilised dimethylsulphoxide and ink for fabrication inkjet printed tracks, which showed interesting negative capacitance...

Herein we report a novel, easy, fast and reliable microwave-assisted synthesis procedure for the preparation of colloidal zinc oxide nanocrystals (ZnO NCs) optimized biological applications. ZnO NCs are also prepared by conventional solvo-thermal approach properties two families compared discussed. All fully characterized in terms morphological analysis, crystalline structure, chemical composition optical properties, both as pristine nanomaterials or after amino-propyl group...

Aim:The effective application of nanoparticles in cancer theranostics is jeopardized by their aggregation biological media, rapid degradation and clearance.The design biomimetic nanoconstructs with enhanced colloidal stability non-immunogenicity therefore essential.We propose naturally stable cell-derived extracellular vesicles to encapsulate zinc oxide (ZnO) nanocrystals as efficacious nanodrugs, obtain highly Trojan nano-horses (TNHs).Materials & methods: Coupling efficiency, biostability,...

Plastic smart windows are becoming one of the key elements in view fabrication inexpensive, lightweight electrochromic (EC) devices to be integrated new generation high-energy-efficiency buildings and automotive applications. However, fabricating on polymer substrates requires a reduction process temperature, so this work we focus development completely room-temperature deposition aimed at preparation ITO-coated polycarbonate (PC) structures acting as transparent conductive plastic supports....

In the last years, different nanotools have been developed to fight cancer cells. They could be administered alone, exploiting their intrinsic toxicity, or remotely activated achieve cell death. latter case, ultrasound (US) has recently proposed stimulate some nanomaterials because of US outstanding property deep tissue penetration and possibility focusing. this study, for first time, we report on highly efficient killing capability amino-propyl functionalized ZnO nanocrystals (ZnO NCs) in...

Zinc oxide nanoparticles (ZnO NPs) are currently among the most promising nanomaterials for theranostics. However, they suffer from some drawbacks that could prevent their application in nanomedicine as theranostic agents. The doping of ZnO NPs can be effectively exploited to enhance already-existing properties and introduce completely new functionalities doped material. Herein, we propose a novel synthetic approach iron-doped (Fe:ZnO) multifunctional nanoplatform aimed at cancer cell...

Lithium-sulfur technology is a strong candidate for the future generation of batteries due to its high specific capacity (1675 mAh g-1), low cost, and environmental impact. In this work, we propose facile solvent-free microwave synthesis composite material based on doped (sulfur nitrogen) reduced graphene oxide embedded with zinc sulfide nanoparticles (SN-rGO/ZnS) improve battery performance. The chemical-physical characterization (XRD, XPS, FESEM, TGA) confirmed effectiveness approach in...

Nanomaterials for bone tissue engineering are developing to new solutions against infections, antibiotic resistance, promotion of bone. ZnO nanocrystals promising candidates with intrinsic antimicrobial activity and high biocompatibility.

Abstract Nitrogen-doped reduced graphene oxide is successfully synthesized and functionalized with hydroxylated copper ions via one-pot microwave-assisted route. The presence of cationic Cu coordinated to the layer fully elucidated through a set experimental characterizations theoretical calculations. Thanks these hydroxyl-coordinated 2+ active sites, proposed material shows good electrocatalytic performance for oxygen reduction reaction, as evidenced by an electron transfer number almost 4...

Zinc oxide nanocrystals (ZnO-NCs) doped with transition metal elements or rare earth can be probed for magnetic resonance imaging to used as a molecular technique accurate diagnosis of various diseases. Herein, we use Mn candidate and Gd presenter elements. We report an easy fast coprecipitation method exploiting oleic acid synthesize spherical-shaped, small-sized ZnO-NCs. show the improved colloidal stability oleate-stabilized ZnO-NCs compared synthesized by conventional sol–gel synthesis...

The microwave-assisted methacrylation of chitosan is studied. control the process parameters allows tuning degree and thus hydrogel properties after photocuring. resulting 3D printable biocompatible.