Green sol–gel auto-combustion synthesis, characterization and study of cytotoxicity and anticancer activity of ErFeO3/Fe3O4/rGO nanocomposite

Due to the fact that researchers and scientists have been interested in environmentally friendly synthesis using plant extracts because of the wide distribution of plants, their ease of availability, and their safety in use, in the current work, ErFeO3/Fe3O4/rGO nanocomposite was produced using a green chemistry method via sucrose indicating the importance of both an active capping and reducing agent for the synthesis of nanocomposite materials with well-organized biological properties. Number of methods, including TEM, SEM, XRD, BET-BJH, VSM, and HRTEM, were used to characterize the produced nanocomposite. The XRD data showed that the produced nanocomposite had pure particles with a range of 37 ± 2 nm in size, which was validated by TEM examination. Additionally, the nanocomposite's cytotoxicity was examined to test its anti-proliferative effect against the T98, and SH-SY5Y cancer cell lines. It was also discussed how to effectively induce cancer cell death in vitro when manufactured nanocomposite was present. The results showed that the percentage of cells that survived was drastically decreased by the synthesized nanocomposite. However, further research must be done to identify the precise linked mechanisms

Electrochemical determination of imatinib mesylate using TbFeO3/g-C3N4 nanocomposite modified glassy carbon electrode

A new electrochemical sensor based on a glassy carbon electrode (GCE) modified by Tb (Terbium) FeO3/g-C3N4 (graphitic carbon nitride) nanocomposite has been developed. In order to characterize the nanocomposite produced, several techniques were employed, including X-ray diffraction (XRD), Fourier transform infrared, Field Emission Scanning Electron Microscope, Energy Dispersive X-ray Spectroscopy, Brunauer-Emmett-Teller, vibrating sample magnetometry, and Transmission Electron Microscopy (TEM). According to XRD data, the nanocomposite produced contained particles of about 36 ± 2 nm in size. TEM examination of the voltammetric response of the offered sensor (TbFeO3/g-C3N4 nanocomposite/glassy carbon electrode (GCE)) demonstrated a catalytic effect against imatinib. In optimized solution pH and scan rate conditions, this sensor demonstrated an excellent electrocatalytic response for detecting imatinib. Furthermore, the fabricated sensor demonstrated acceptable accuracy, reproducible behavior, and a high level of stability during all electrochemical tests. In addition, analytical parameters were determined and the results were compared with those from previous studies

Introduction of TbFeO3/TbCoO3 as a visible-active heterojunction nanocomposite: Facile synthesis and characterization with an environment-lover approach

A facile sol-gel method was used to synthesize an innovative nanocomposite containing Terbium orthoferrite (TbFeO3) and Terbium orthocobaltite (TbFeO3) with olive and Vitex agnus-castus leaves as natural reduction agents. The desired product comprised of two perovskites, TbFeO3 and TbCoO3, was utilized to degrade two anionic and cationic dyes after optimizing the synthesis conditions. A better photocatalytic efficiency in acidic media may be achieved as a result of the better performance of this nanocomposite for degradation of anionic dye. Also, the two other reactions were performed separately in order to synthesize each of the components of the as-synthesized nanocomposites. A couple of three-component nanocomposites with fascinating properties were produced as a result of this experiment. As a result of optical studies, different patterns of charge carrier transfer were assumed for them, which contributed to the theoretical creation of heterojunction photocatalysts with a variety of configurations. A summary of the results shows that the maximum degradation percentage of Eriochrom Black T during 90 min under visible light in pH = 5 in the presence of as-prepared was 91.7. This two-component nanocomposite demonstrated a type I configuration for charge carrier transfer

Green synthesis and characterization of terbium orthoferrite nanoparticles decorated with g-C3N4 for antiproliferative activity against human cancer cell lines (Glioblastoma, and Neuroblastoma)

Accordingly, employing plant extracts for the green synthesis of different nanoparticles (NPs) has caught the interest of scientists, and researchers due to the ease of accessibility, widespread distribution, and safety of plants. In the current study, a TbFeO3/g-C3N4 nanocomposite was made using a green chemistry technique that utilized grape juice, which acts as an active capping, and reducing agent to create NPs with well-organized biological characteristics. Several methods, including HRTEM, TEM, SEM, XRD, BET-BJH, and VSM, were employed to characterize the produced NPs. The XRD results indicated that the produced NPs had particles with an average size of 38.74 ± 2 nm, which the TEM examination verified. Additionally, the cytotoxicity of the NPs was examined to assess their anti-proliferative effects on the cancer cell lines T98, and SH-SY5. In the case of T98 cells, viability was about 60, 70 and 90% in concentration C1 to C4 respectively after 24 h of drug administration. And viability decreasing by pass the time. Also, viability reduce bout 65% in all concentration about SH-SY5Y cells, surprisingly only the first three concentrations, C1 to C3 caused cell death after 48 h of drug administration and in lower concentrations, the death rate should decrease with the passage of time, viability was about 80 and85% in C4 and C5 respectively

In-situ synthesis of TbAlO3/Tb3Al5O12/Tb2O3 three-component nanocomposite as a heterojunction photocatalyst with a green and eco-friendly approach

In-situ synthesis of TbAlO3 (TAP)/Tb3Al5O12 (TAG)/Tb2O3 three-component nanocomposite by sol–gel method using natural reactants and investigation of its photocatalytic activity can be considered eco-friendly aspects of this work. The bioactive components of natural compounds may play as a reductant and progress the process through auto-combustion sol–gel technique. It was found that Mulberry has more bioactive components than Capparis spinosa L., so nucleation overtook growth and produced finer particles with less agglomeration. Optical property studies represented a band gap at about 3.8 eV that is different from the amounts related to TAP and TAG. Hence, e--h+ transfers in this nanocomposite were studied by estimation of energy levels of its constituents. According to findings, these components formed a UV-active photocatalyst with Type-I configuration to degrade organic pollutants. In other words, presence of Tb2O3 helped to benefit from properties of two ferroelectric compounds, that they have large band gaps, in photocatalytic reactions. After optimizing the photocatalytic parameters, maximum yield was obtained at about 94 %. Kinetics studies showed the photocatalytic process follows zero-order kinetics. In addition, the oOH was found as the most active promoter agent