International Nano Letters

http://link.springer.com/journal/40089

List of Papers (Total 237)

Nanotechnology and nanocarrier-based approaches on treatment of degenerative diseases

Degenerative diseases are results of deterioration of cells and tissues with aging either by unhealthy lifestyle or normal senescence. The degenerative disease likely affects central nervous system and cardiovascular system to a great extent. Certain medications and therapies have emerged for the treatment of degenerative diseases, but in most cases bearing with poor solubility...

Synthesis and characterisation of zinc oxide nanoparticles using terpenoid fractions of Andrographis paniculata leaves

Zinc oxide (ZnO) nanoparticles have been widely employed for various pharmacological applications. Several approaches were tried to synthesize ZnO nanoparticles. In this study, ZnO nanoparticles were biosynthesized using terpenoid (TAP) fractions isolated from Andrographis paniculata leaves. Subsequently, the ZnNO3 (0.1 N) is treated with the isolated TAP fractions to...

Anthelmintic effects of zinc oxide and iron oxide nanoparticles against Toxocara vitulorum

In the present study, zinc oxide (ZnO) and iron oxide (FeO) nanoparticles were examined for their possible, in vitro anthelmintic effects against Toxocara vitulorum. The worms were incubated for 24 h with different concentrations (0.004, 0.008 and 0.012% w/v) of the nanoparticles. The parasite mobility, mortality, superoxide dismutase (SOD) activity, malondialdehyde (MDA) and...

Green synthesis of manganese oxide nanoparticles for the electrochemical sensing of p-nitrophenol

Manganese oxide (MnO) NPs are widely used in contaminant sensing, drug delivery, data storage, catalysis and biomedical imaging. Green synthesis of NPs is important due to increased concern of environmental pollution. Green chemistry based synthesis of NPs is preferred due to its ecofriendly nature. In this study, MnO NPs of different sizes were synthesized in aqueous medium...

A high productivity and speedy synthesis process for copper nanowires via an ethylenediamine-mediated method

Generally, there are two well-known synthetic approaches for copper nanowires (Cu NWs): ethylenediamine (EDA)-mediated synthesis and alkylamine-mediated synthesis. The alkylamine-mediated synthesis produces very high ratio nanowires but requires a special environment and long reaction times, while the EDA-mediated synthesis can be carried out under normal conditions and requires...

Band gap opening in graphene: a short theoretical study

Graphene, being a gapless semiconductor, cannot be used in pristine form for nano-electronic applications. Therefore, it is essential to generate a finite gap in the energy dispersion at Dirac point. We present here the tight-binding model Hamiltonian taking into account of various interactions for tuning band gap in graphene. The model Hamiltonian describes the hopping of the...

Morphology and photoluminescence of self-assembled CaWO4:Sm3+ microspheres: effect of pH and surfactant concentration

Self-assembled CaWO4:Sm3+ microspheres were prepared via surfactant (sodium dodecyl sulfate) mediated hydrothermal method. The effect of pH and the concentration of surfactant on the morphology and photoluminescence of the synthesized phosphors have been studied. Samples were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron...

Effects of ultrasound time on the properties of methylcellulose-montmorillonite films

Methylcellulose-montmorillonite films were prepared via solvent casting method. The effects of different ultrasound times (0, 15, 30, 45, 60, and 75 min) on the properties of methylcellulose-montmorillonite films were evaluated. Fourier transform infrared and X-ray diffraction were applied to investigate and prove the effects of ultrasound time. The films were characterized by...

Study of conversion of butadiene to CO2 by rTiO2 nanoparticles: ZINDO/S

One of the pollutants emitted from automobile exhaust is unburned hydrocarbons that include benzene, propane, formaldehyde, butadiene, etc. Due to the carcinogenicity of these substances, eliminating and reducing them in the source of production is essential. Catalytic converters have been developed to reduce these pollutions to low-risk materials in automobile exhaust. In this...

The effects of argon ion bombardment on the corrosion resistance of tantalum

Application of ion beam has been widely used as a surface modification method to improve surface properties. This paper investigates the effect of argon ion implantation on surface structure as well as resistance against tantalum corrosion. In this experiment, argon ions with energy of 30 keV and in doses of 1 × 1017–10 × 1017 ions/cm2 were used. The surface bombardment with...

Kinetics adsorption study of the ethidium bromide by graphene oxide as adsorbent from aqueous matrices

In this study of ethidium bromide, adsorption from aqueous matrices by graphene oxide as adsorbent was investigated. Influencing parameters in the adsorption study included contact time, temperature, and pH. The optimum time was selected 17 min, and the best value of pH was determined at 8. All adsorption experiments were performed at 298 K temperature. The maximum wavelength of...

Thermocapillary flow of thin Cu-water nanoliquid film during spin coating process

Unsteady flow of thin Cu-water nanoliquid film over a horizontal rotating disk is studied numerically using finite difference technique under the assumption of planar interface. It is also assumed that the disk is cooling axisymmetrically from below. The effects of the nanolayer thickness and nanoparticle radius are considered for investigation. It is found that the film thinning...

The effect of concentration ratio and type of functional group on synthesis of CNT–ZnO hybrid nanomaterial by an in situ sol–gel process

In this research, MWCNT–ZnO hybrid nanomaterials were synthesized by a simple sol–gel process using Zn(CH3COO)2·2H2O and functionalized MWCNT with carboxyl(COOH) and hydroxyl(OH) groups. Three different mass ratios of MWCNT:ZnO = 3:1, 1:1 and 1:3 were examined. The prepared nanomaterials were characterized by field emission scanning electron microscopy (FESEM), transmission...

Study of the indoor decontamination using nanocoated woven polyester fabric

This research primarily deals with the photocatalytic degradation of methanol in indoor air using nanocoated indoor textiles used for curtains as household textiles. The woven polyester was coated by titanium dioxide by sol gel method, using silicon-based binder. The characterization of the coating has been done using scanning electron microscopy (SEM) image analysis, energy...

The effect of temperature and type of peroxide on graphene synthesized by improved Hummers’ method

The effects of temperature and the type of peroxide used in improved Hummers’ method for synthesis of graphene oxide were investigated. Two different temperatures of 60 and 75 °C were examined and the performance of H2O2 and 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane as peroxides was compared. Scanning electron microscope, fourier transform infrared spectroscopy, UV–vis...

Carboxylated carbon nanotubes as an efficient and cost-effective adsorbent for sustainable removal of insecticide fenvalerate from contaminated solutions

In this study, carboxylic multiwall carbon nanotubes (CMNTs) were used as an adsorbent for removing fenvalerate as a toxic insecticide from solution through batch experiments. The influence of four independent parameters of HCl, initial fenvalerate concentration, CMNTs dosage, and contact time on the fenvalerate adsorption process was investigated. Raman spectroscopy and...

Superposition states for quantum nanoelectronic circuits and their nonclassical properties

Quantum properties of a superposition state for a series RLC nanoelectronic circuit are investigated. Two displaced number states of the same amplitude but with opposite phases are considered as components of the superposition state. We have assumed that the capacitance of the system varies with time and a time-dependent power source is exerted on the system. The effects of...

Fungal mediated silver nanoparticle synthesis using robust experimental design and its application in cotton fabric

Among the different methods employed for the synthesis of nanoparticles, the biological method is most favorable and quite well established. In microorganisms, use of fungi in the biosynthesis of silver nanoparticles has a greater advantage over other microbial mediators. In this study, intracellular synthesis of silver nanoparticles from Aspergillus terrerus (Thom) MTCC632 was...

Photon absorption potential coefficient as a tool for materials engineering

Different atoms achieve ionizations at different energies. Therefore, atoms are characterized by different responses to photon absorption in this study. That means there exists a coefficient for their potential for photon absorption from a photon source. In this study, we consider the manner in which molecular constituents (atoms) absorb photon from a photon source. We observe...

Development of bimetal oxide doped multifunctional polymer nanocomposite for water treatment

Bimetal oxide doped polymer nanocomposite was developed using Alumina and Iron (III) Oxide as nanoparticles with Nylon 6, 6 and Poly (sodium-4-styrenesulphonate) as polymer matrix for removal of pollutants from water. The blend sample of polymers was prepared by well established solution blending technique and their nanocomposite samples were prepared through dispersion technique...

Investigating the effect of some parameters of the channel on the characteristics of tunneling carbon nanotube field-effect transistor

This paper studies p-i-n tunneling carbon nanotube field-effect transistor to investigate the effect of various parameters of the channel on the characteristics of tunneling carbon nanotube field-effect transistor. Tunneling carbon nanotube field-effect transistor (T-CNTFET) has been simulated using non-equilibrium Green’s function (NEGF), and the transmission was conducted...

The use of castor oil and ricinoleic acid in lead chalcogenide nanocrystal synthesis

A green solution-based thermolysis method for the synthesis of lead chalcogenide (PbE, E = S, Se, Te) nanocrystals in castor oil (CSTO) and its isolate ricinoleic acid (RA) is described. The blue shift observed from the optical spectra of CSTO and RA-capped PbE nanocrystals (NCs) confirmed the evidence of quantum confinement. The dimensions of PbE NCs obtained from NIR absorption...

Synthesis of silver nanoparticles using flavonoids: hesperidin, naringin and diosmin, and their antibacterial effects and cytotoxicity

Three different flavonoids -hesperidin, naringin and diosmin (constituents of citrus plants) were used for the synthesis of silver nanoparticles (AgNPs). Aqueous solutions of pure flavonoids (0.2 mg mL−1) mixed with 1 mM AgNO3 solution were exposed to bright sunlight to prepare the nanoparticles. Characterization of the synthesized nanoparticles by UV–Visible spectrophotometer, X...

The decoration of multi-walled carbon nanotubes with nickel oxide nanoparticles using chemical method

In this paper, nickel oxide (NiO) nanoparticles have been fabricated using wet method and deposited on the surface of multi-walled carbon nanotube (MWCNT). To do so, functional groups were introduced on the surface of MWCNTs by treating with concentrated nitric acid. Nickel oxide nanoparticles were formed on the surface of functionalized MWCNTs by incipient wetness impregnation...