A basic theoretical model known as the Schrodinger equation is utilized to explain the physics of the waveform, a phenomenon in quantum mechanics. The whole characterization of a technique’s components is included within the wave function. There are several aspects of the Schrodinger equation’s numerical solution. In this work, we determined mathematically the eigenvalues and characteristic functions of the Eckart-Hellmann potential. This study adopted an estimating strategy for solving the problem recommended by the Nikiforov–Uvarov approach and employed the Greene–Aldrich approximation. The aim was determining bound energies and applying the findings to particular diatomic molecules and their spectroscopic parameters. By contrasting our eigenvalue data with extra numerical data collected by other scholars, the good outcomes of our technique were validated.

Thulium tellurite ([Formula: see text]) is synthesized by hydrothermal method. It exhibits nearly cuboid-shaped particles along with triangular particles. [Formula: see text] is found to be monoclinic. The energy gap is 5.87[Formula: see text]eV, the Urbach energy value is 0.287[Formula: see text]eV and the refractive index is 1.881. The size of the particle is determined as 107[Formula: see text]nm. Optical transitions between energy levels assign absorption and emission peaks. Tm, was found in the oxide matrix as Tellurite. Magnetic susceptibility between 20[Formula: see text]K and 300[Formula: see text]K decreases with temperature, reaches saturation and aligns all Thulium spins. M–H curve confirms paramagnetic nature at 300[Formula: see text]K and feeble ferromagnetic nature at 77[Formula: see text]K. Cyclic voltammogram and chronopotentiometry analysis exhibit pseudo-capacitive behavior. The potential window is 0.82. Specific capacitance is found to be 87[Formula: see text]F/g. Chronopotentiometry analysis shows 55[Formula: see text]F/g specific capacitance. Impedance analysis shows a pseudo-capacitive nature. [Formula: see text] symmetrical supercapacitor device is fabricated with potential window of 1.52[Formula: see text]V. A specific capacitance of 37.75[Formula: see text]F/g at 1 A/g, energy density 6.055[Formula: see text]Wh kg[Formula: see text] and power density 760.99[Formula: see text]W kg[Formula: see text] was achieved. Impedance analysis shows low series resistance of 2.567[Formula: see text][Formula: see text] and charge transfer resistance of 0.473[Formula: see text][Formula: see text]. Cyclic performance with 80% specific capacitance retention is observed after 5000 cycles. The [Formula: see text] symmetric supercapacitor electrodes possess good electrochemical properties due to wider potential window, long cycle stability and notable energy density.

Natural melanin is a sustainable and environmentally friendly pigment. The structural properties of melanin are of great significance for its functional applications. In this study, the preliminary composition and structure of melanin extracted from the induced cultures of Lasiodiplodia theobromae were qualitatively characterized by ultraviolet-visible (UV) spectrophotometer, elemental analysis (EA), Fourier transform infrared spectrometer (FTIR), nuclear magnetic resonance (NMR), electron paramagnetic resonance (EPR) and ultra-performance liquid chromatography-mass spectrometry (UPLC-MS). The results showed that the secreted melanin contained many functional groups such as hydroxy groups, alkanes and aromatic rings, which belonged to benzoquinone structure and aliphatic structure. The melanin secreted by Lasiodiplodia theobromae can be identified as a type of allomelanin. This research work is expected to provide a reference for the application of melanin in various fields in the future.

Using cryptography correctly is crucial in the current situation to safeguard data and ensure data security during data transfer. In this digital era, messages must be appropriately encrypted and decoded to prevent data misuse and ensure its accessibility to the intended recipient. Conventional cryptography techniques mostly depend on the mathematical intricacy of the encoding functions and the shared key. One such encoding approach that we may take into consideration is the Vigenere cipher algorithm. In this study, we want to apply this strategy utilizing reversible logic with the assistance of two helpful tools, namely, IBM Quantum (IBMQ) and QCADesigner. The encoder and decoder circuits for the Vigenere cipher are therefore proposed in this work in QCADesigner by utilizing Peres and DG gates in quantum-dot cellular automata (QCA) that consist of a single layer with 42 cells for encryption and 47 cells for decryption. The proposed circuit outperforms the existing ones concerning area, cell count and latency. Given that the layouts’ energy consumption is assessed, it is guaranteed that the QCA nanodevice might serve as a stand-in platform for the creation of reversible circuits. The same simulation outcome was also obtained while building the identical circuits in a quantum presentation using IBMQ. The two applications are closely connected and both rely on quantum concepts. The outcomes are therefore verified for each of the two situations. The reversible Vigenere cipher technique enhances data security. Further sophisticated low-power nanoscale lossless nanocommunication architecture may be created with the help of the suggested circuits.

This research work describes the cost-effective synthesis and purification of multiwall carbon nanotubes (MWCNTs). Synthesis of CNTs was carried out in distilled water between two electrodes using the electric arc discharge (EAD) method. EAD is a simple and straightforward route in which an electric arc is generated between graphite electrodes through DC power source to produce soot which contains MWCNTs along with impurities. The deposited soot containing MWCNTs was then chipped off and purified. In this case, multistep purification scheme was opted to remove unwanted impurities from produced MWCNTs. Purification route comprised thermal treatment, chemical treatment and a combination of both to yield pure MWCNTs. Thermal treatments were carried out in normal air and under controlled flow of oxygen at different temperatures whereas chemical treatment was performed using acidic solution. Thermo gravimetric analysis (TGA), field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) were carried out before and after purification treatments to investigate the outcome of employed treatments. Results showed that the thermal or chemical treatment alone is not sufficient to remove impurities from soot. Moreover, the introduction of an oxide group through chemical treatment reduces the oxidization temperature of graphitic particles. It was found that the chemical treatment followed by thermal annealing under the controlled flow of oxygen is the most appropriate method for successful purification of MWCNTs synthesized via EAD method.

In order to solve the problem of insufficient oxidation resistance and corrosion resistance of magnetic metal absorbent represented by carbonyl iron powder, a wave absorbing composite material which consists of different filling mass proportions of the atomized electrolytic stainless steel powder and paraffin wax is investigated. The electromagnetic (EM) characteristics and absorbing performance of the proposed composite material were tested with Agilent N5234A vector network analyzer in a frequency range of 2–18GHz. The experimental results show that the real and imaginary parts of the dielectric permittivity of stainless steel powder/paraffin composites will increase with the filling mass fraction in the test frequency band, while the real part of the permeability [Formula: see text] decreases with the increase of the mass fraction, and the imaginary part [Formula: see text] increases with the increase of the mass fraction. At a thickness of 3 mm, with the filling mass fraction increasing from 20 wt.% to 60 wt.%, the peak frequency of reflection loss (RL) moves to low frequency from 17.92 GHz to 16 GHz. Meanwhile, the minimum reflection loss (RL[Formula: see text]) also shows a downward trend, and the RL[Formula: see text] value with a filling mass fraction of 60 wt.% is −8.93[Formula: see text]dB. It can be seen that stainless steel powder shows good microwave absorbing performance, and it has excellent anti-oxidation, and anti-corrosion properties. Based on the excellent performance of stainless steel powder, its absorption performance is expected to be further improved through multi-layer optimization design, so as to meet the needs of electromagnetic protection in harsh environments.

Thunder God Vine has multiple effects such as anti-inflammatory, anti-tumor, and anti-fertility. One of its main active ingredients, triptriolide, can exert anti-tumor effects by targeting transcription factors, kinases, or inhibiting the ubiquitin/proteasome pathway to inhibit cell proliferation and promote tumor cell apoptosis. However, its high toxicity and poor water solubility limit its application. This study aims to develop a novel photoelectrochemical (PEC) sensor based on MoS2/Bi2MoO6 nanohybrids for the rapid and accurate detection of triptriolide. The PEC sensor is a fundamental tool for extracting and identifying valuable bioactive compounds from this plant. Under optimal conditions, 0.01–10[Formula: see text]ng[Formula: see text]mL[Formula: see text] of triptriolide could be identified, with the detection limit being as low as 0.005[Formula: see text]ng[Formula: see text]mL[Formula: see text]. With advantages like rapid response, high sensitivity and preferable stability, the developed sensor is suitable for real-time monitoring of triptriolide levels in actual samples.

Due to the various applications of nanocantilevers as nanosensors and nanoactuators in nanoelectromechanical systems, understanding their behavior is of particular importance. In operating environments, nanocantilevers are simultaneously exposed to mechanical forces and heat. This study aims to examine the behavior of an Euler–Bernoulli nanocantilever when it is placed under mechanical loads and exposed to heat at the same time. The effects of size, temperature, and force on the flexural behavior of the nanocantilever were investigated and the following characteristics were obtained via molecular dynamics simulation: nanocantilever displacement versus time, maximum bending, nanocantilever yielding time, and the minimum acceptable working frequency range for nanocantilever-based nanoswitches. It was found that applying forces greater than 0.00005[Formula: see text]eV/A, the studied nanocantilevers would rapidly undergo plastic deformation. For applied forces less than 0.00005[Formula: see text]eV/A, the nanocantilevers with length of 40[Formula: see text]nm, 30[Formula: see text]nm and 20[Formula: see text]nm can withstand upto 750[Formula: see text]K, 600[Formula: see text]K and 300[Formula: see text]K in 200[Formula: see text]ns to more than 1.5[Formula: see text][Formula: see text]s time period, respectively.

The transition of graphene from the lab to consumer goods is still a challenging job that necessitates efficient and cost-effective large-scale graphene production. This study combines electrochemical exfoliation in an aqueous solution of sulfuric acid (1M H2SO[Formula: see text] and hydrogen peroxide (3% H2O[Formula: see text] followed by thermal deoxygenation at a temperature of 800[Formula: see text]C within the ambient environment. This method allows the inexpensive synthesis of pristine graphene for various industrial applications. X-Ray diffraction (XRD) results for pristine graphene showed a distinct peak at 2[Formula: see text] with a corresponding interplanar distance ([Formula: see text] of 3.3754 Å and a crystallite size of 18 nm. XRD statistics indicated that the crystal structure of the original graphene was preserved. The crystalline structure was recovered and the interplaner distance was decreased following the high temperature thermal reduction. According to Raman spectroscopy, the impurity degree (I[Formula: see text]/I[Formula: see text] region fraction of pristine graphene was 0.211. This indicates that the original graph produced by the current method has little distortion. Raman analysis shows that there is a linear red shift in peaks D-band (D), G-band (G), and second order of the D-band (2D) due to the increase in phonon–phonon nonlinear interactions with increasing temperature, so that peaks (D), (G) and (2D) shifts are shown. The majority of the functional groups were discovered to be eliminated after high temperature thermal treatment. The three-dimensional graphene sheet is highly defined and intricately coupled in the microstructure analysis, resulting in a laxer and porous structure. When treated at a temperature below 800[Formula: see text]C, there was only minor damage to the reduced graphene oxide (RGO) microstructure. The results of the Atom Force Microscope (AFM) demonstrated that the flaws spread over time from the layer boundaries and pores to the edges and eventually resulted in a separate RGO archipelago. According to TGA analysis, at temperatures up to 800[Formula: see text]C, the RGO sheet loses up to 45% of its weight.

CdO/CdS nanocomposites have been synthesized via the solution combustion route. These nanocomposites have been characterized in terms of XRD, FESEM, EDS, UV-visible and FTIR spectroscopy. The crystallinity and the crystallite size of the as-synthesized CdO/CdS nanocomposites were calculated from XRD, whereas the surface morphology and chemical purity were obtained from FESEM and EDS analysis. Further, all the samples were used as photocatalyst for the degradation of methyl orange (MO) dye under UV-Visible irradiation. The rate constant, [Formula: see text], was obtained by the Langmuir–Hinshelwood model. From [Formula: see text] values, it can be observed that the rate constant increases on increasing the amount of photocatalyst due to an increase in surface area. The rate constant value for CdO/CdS nanocomposite annealed at 615[Formula: see text]C was found to be very low, which may be largely due to loss in crystallinity at this higher temperature. Further, we compared our results with those reported in the literature and it was observed that CdO/CdS nanocomposites act as a better photocatalyst than others.