Attention to biopolymers has been increased owing to growing environmental awareness, rising crude oil prices, and challenges related to global warming. Polylactide fibers are used to produce biobased textiles which actually fills the gap between synthetic and natural clothes. Polylactide stands out as a potential option in many different fields for reducing environmental impact and promoting a more sustainable future. In the present investigation, physicochemical studies (morphological investigation, reflectance spectra and dyeing mechanism) of dyeing of polylactide fabric with CI Disperse Blue 56 dyestuff were investigated. The SEM images of the fabrics showed that the morphology of the polylactide fibers dyed with CI Disperse Blue 56 displayed no major physical changes at the fiber surface. Only several portions were detected on the flat surface of the fibers, which were not eliminated throughout the scouring period.
Structural design plays a crucial role in enhancing the electrochemical performance of electrode materials in the development of energy storage technologies. Supercapacitors have gained attention due to their fast charge-discharge capability, excellent rate capability, and long-term stability. In this study, MnMoO4.H2O nanostructures were successfully grown on the surface of Ni foam using a hydrothermal method. The resulting nanostructures were then wrapped with Ni-Co-S nanosheets. The nanostructures' structure and morphology were analyzed using several techniques, including field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and energy-dispersive X-ray spectroscopy. To investigate the electrochemical behavior of the nanostructures, cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance spectroscopy were employed. The results of the electrochemical tests indicated excellent supercapacitive behavior and appropriate electrode stability during long charge-discharge cycles. This excellent behavior can be attributed to the three-dimensional structure of the nanostructures, which provides fast and easy transport of electrons and ions. In this study, the specific capacitance of the Ni-Co-S/MnMoO4.H2O/NF supercapacitor was found to be 2798 F g–1 at a current density of 2 A g–1. The maximum energy and power densities obtained were 78.1 Wh kg–1 and 758.3 W kg–1, respectively, making this supercapacitor a promising candidate for practical applications in energy storage.
Advanced materials have emerged as viable alternative and promising remedies for cancer treatment. Nanoparticles synthesized via green routes are eco-friendly with enhanced anticancer properties. This study reports the synthesis of TiO2 and Ag/TiO2 nanoparticles using Mondia whitei leaves extract. Spectro-analytical techniques, including UV–vis spectroscopy, transmission electron/scanning electron microscopy (TEM/SEM), and powder X-ray diffraction (XRD), were employed to characterize their optical, morphological, and structural properties. TiO2 showed strong absorption at 325 nm, shifting to 345 nm in Ag/TiO2 with a surface plasmon resonance peak at 440 nm. XRD confirmed the anatase phase for both nanoparticles, with crystallite sizes of 19.31 nm (TiO2) and 23.03 nm (Ag/TiO2). TEM and SEM revealed spherical morphologies. The anticancer potential was assessed using (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) MTT assays on HeLa (cervical carcinoma) and Human Embryonic Kidney (HEK) 293 cell lines. Ag/TiO2 exhibited lower IC50 values (HeLa: 38.897 µg/mL; HEK293: 56.885 µg/mL) compared to TiO2 (HeLa: 46.773 µg/mL; HEK293: 80.909 µg/mL). Fluorouracil (5-FU), a standard anticancer drug, showed greater cytotoxicity (HeLa: 17.51 µg/mL; HEK293: 6.26 µg/mL). The nanoparticles exhibited dose-dependent selective cytotoxicity toward cancer cells with reduced toxicity in normal cells. Notably, this sustainable synthesis minimizes environmental impact and promotes innovative cancer treatments using natural resources. It offers a green alternative to conventional methods reliant on toxic chemicals, advancing both environmental sustainability and public health.
Antibiotics are commonly employed to combat bacterial infections, but their excessive use, misuse and limitations often result in aggregation and bio-transformation in aqueous systems. This has resulted in a phenomenon known as bacterial antibiotic resistance, and can cause detrimental effects such as the rise of multi-resistant bacterial genes contributing to increased survival rates of the bacteria, and hindering the treatment of patients. The most impactful approach to controlling water pollution due to antibiotics is by preventing their release in the first place. Various treatment strategies have been explored for the purpose of finding solutions to the rising dangers of antibiotic contamination of purified water and natural waters. Photocatalytic degradation was found as a very efficient treatment option. The central aim of this research was the investigation of the absorption of antibiotics via magnetic nanoparticles (MNPs), and to outline prospective research requirements and challenges. The possible approaches for the removal of antibiotic pollutants have been discussed accordingly. This review specifically focuses on the numerous approaches of photocatalytic degradation by nanomaterials. In order to materialize the MNPs full potential at grand scale applications, allocating greater attempts is proposed.
Daunorubicin (DNR), an anthracycline antibiotic, is a potent anticancer drug commonly used in chemotherapy. Its significant clinical effectiveness in inhibiting DNA replication and RNA transcription has led to its widespread application in treating solid tumors, including breast cancer, acute lymphocytic leukemia, and myeloid leukemia. However, side effects refer to any unwanted effects of this drug. The most critical side effect of anthracycline antibiotics is their cardiotoxicity at high doses, which increases the risk of arrhythmias, irreversible cardiomyopathy, and congestive heart failure in patients. Therefore, monitoring drug levels is essential to mitigate these risks. In this study, we developed NiO nanosheets (NiO NSs) modified screen printed carbon electrode (SPCE) to explore the electrochemical behavior of the anticancer drug DNR. Elemental composition of the synthesized NiO NSs was conducted using energy-dispersive X-ray spectroscopy (EDX). Morphological analysis was conducted using field emission scanning electron microscopy (FESEM). For the electrochemical studies and measurements, the NiO NSs-SPCE was utilized as the sensing platform. The differential pulse voltammetry (DPV) technique was employed to determine DNR, resulting in a detection limit (LOD) of 0.003 µM for the NiO NSs modified SPCE. Also, the determination of DNR in the injection sample was successfully conducted.
