Enhancing the optoelectronic properties of SnS mixed-phase heterostructure engineering.

SnS holds great promise in optoelectronics, especially in photovoltaic devices, due to its exceptional intrinsic electronic properties and optimal optical absorption. However, its prospective applications are often limited by structural instability or oxidation, leading to internal or external defect states. This study proposes a mixed-phase SnS/h-BN heterostructure to enhance chemical and thermal stability while preserving the intrinsic optoelectronic properties of SnS.

Development of highly sensitive electrochemical immunosensor using PPy-MoS-based nanocomposites modified with 90 MeV C ion beams.

The evaluation of electrochemical sensing activity of hydrothermally derived PPy-MoS-based nanocomposites subjected to 90 MeV C ion beam with fluence ranging, 1.0 × 10-1.0 × 10 ions/cm, is reported.

mediated single step biosynthesis of gold nanoparticles by bottom-up approach and its non-antimicrobial properties.

Unlabelled: In this study, we have stated the green biosynthesis of gold nanoparticles (AuNPs) by utilizing the extract of leaves (MDL) as a reducing agent. Biosynthesized flat, thin, and single-crystalline gold nanotriangles obtained through centrifugation are then analyzed by different characterization techniques. The UV - visible absorption spectra of AuNPs exhibited maxima bands in the range of 500-590 nm, indicating a characteristic of AuNPs.

Electrochemically deposited bimetallic SERS substrate for trace sensing of antibiotics.

Electrochemically deposited bimetallic copper-gold nanoparticles on indium tin oxide (Cu-AuNPs on ITO) glass are demonstrated to be a sensitive and reproducible surface-enhanced Raman scattering (SERS) platform. An optimal signal enhancement with reasonably good degree of homogeneity was obtained by tuning the deposition parameters of the electrochemical setup. For Raman active analytes such as malachite green (MG) and rhodamine 6G (R6G), the developed SERS platform yields a limit of detection (LOD) of 0.

CsPbBr perovskite quantum dot decorated ZIF-8 MOF: a selective dual recognition fluorometric visual probe for 4-nitroaniline and rhodamine blue.

The uses of highly luminescent perovskite quantum dots in real analytical detection were limited by their supersensitive nature. Here, we have designed a CsPbBr perovskite based fluorometric sensor by integrating them with a zeolitic imidazole framework (ZIF-8) an one step technique and established its stability in aqueous and other polar solvents. The CsPbBr@ZIF-8 luminescence sensor functioned excellently for the trace detection of 4-nitroaniline and rhodamine blue dye molecules with a detection limit value of 8.

Biogenic nanosized gold particles: Physico-chemical characterization and its anticancer response against breast cancer.

With the advancement of nanotechnology, the nano-sized particles make an imprint on our daily lives.The present investigation revealed that biomolecules present in seed exudates of Vigna radiata are responsible for the synthesis of AuNPs, confirmed by the routine characterization techniques. Anticancer efficacy showed by AuNPs might be due to the release of phytochemicals in the exudate which is being adsorbed on the surface of AuNPs referencing their anticancer efficacy against the tested breast cancer cell lines.

Nutritional assessment study and role of green silver nanoparticles in shelf-life of coconut endosperm to develop as functional food.

Tender coconut water is a pure and nutritious drink which play important role as nutraceuticals and pharmaceuticals contributes to the rapid growth of the functional food industry. In the mean-time the safety and shelf-life of the food is crucial for the both product as well as consumers. The intervention or application of nanotechnology gives immense a solution for the prolonged sustainability of the food products.

Perceptible exciton-to-trion conversion and signature of defect mediated vibronic modes and spin relaxation in nanoscale WS exposed to γ-rays.

In this work, we report manifested optical, optoelectronic and spin-spin relaxation features of a few layered tungsten disulphide (WS) nanosheets subjected to energetic γ-photons (∼1.3 MeV) emitted from a Co source. Upon intense irradiation (dose = 96 kGy), a slight departure from the pure hexagonal phase was realized with the introduction of the trigonal phase at large.

Biogenic synthesis of silver nanoparticles from (Linn.): assessment of their antioxidant, antimicrobial and cytotoxic activities.

The present study reports on biogenic-synthesised silver nanoparticles (AgNPs) derived by treating Ag ions with an extract of leaf, a popular Indian medicinal plant found in natural habitation. The progress of biogenic synthesis was monitored time to time using a ultraviolet-visible spectroscopy. The effect of phytochemicals present in including flavonoids, tannins, phenolic compounds and alkaloids on the homogeneous growth of AgNPs was investigated by Fourier-transform infrared spectroscopy.

Physical and biophysical assessment of highly fluorescent, magnetic quantum dots of a wurtzite-phase manganese selenide system.

Combining fluorescence and magnetic features in a non-iron based, select type of quantum dots (QDs) can have immense value in cellular imaging, tagging and other nano-bio interface applications, including targeted drug delivery. Herein, we report on the colloidal synthesis and physical and biophysical assessment of wurtzite-type manganese selenide (MnSe) QDs in cell culture media. Aiming to provide a suitable colloidal system of biological relevance, different concentrations of reactants and ligands (e.

Creation and regulation of ion channels across reconstituted phospholipid bilayers generated by streptavidin-linked magnetite nanoparticles.

In this work, we explore the nature of ion-channel-like conductance fluctuations across a reconstituted phospholipid bilayer due to insertion of ∼100 nm sized, streptavidin-linked magnetite nanoparticles under static magnetic fields (SMFs). For a fixed bias voltage, the frequency of current bursts increases with the application of SMFs. Apart from a closed conductance state G(0) (≤14 pS), we identify four major conductance states, with the lowest conductance level (G(1)) being ∼126 pS.

Physical and biophysical characteristics of nanoscale tungsten oxide particles and their interaction with human genomic DNA.

Nanoscale tungsten oxide (WO3) particles were synthesized via a user-friendly solvothermal cum reduction route using sodium tungstanate (Na2WO4) and cetyl trimethyl ammonium bromide (C19H42NBr) as reactants. The X-ray diffraction and transmission electron microscopy studies have revealed monoclinic phase of WO3 with an average crystallite size of 40 nm and competitive crystallographic orientation along (002), (020), (200) planes. After extracting human genomic DNA from human blood by a standard protocol (Qiagen-Kit method), they were conjugated with nanoscale WO3 particles in varying molar concentrations.