The foremost objective of this work is to prepare a novel electrochemical sensor-based screen-printed carbon electrode made zinc oxide nanoparticles/molecularly imprinted polymer (SPCE-ZnONPs/MIP) and investigate its characteristics detect sodium dodecyl sulfate (SDS). MIP that polyglutamic acid (PGA) film was synthesized via in situ electro-polymerization. SDS's recognition site left on the surface PGA after extraction using cyclic voltammetry (CV) technique, facilitating specific detection...

A rapid, simple, and sensitive voltammetric sensor has been fabricated to determine Rhodamine B (RhB), a textile coloring agent. Silver nanoparticles (AgNPs) were synthesized by the chemical reduction method of silver nitrate sodium citrate. Graphene nanoplatelets (GPLs) AgNPs drop-casted on surface working electrode screen-printed carbon (SPCE), forming SPCE-GPLs/AgNPs samples. Scanning electron microscopy-energy dispersive X-ray cyclic voltammetry confirmed altered SPCE. The square wave...

Electrochemical sensors based on ion-imprinting polymers have emerged as an effective analytical tool for heavy metal tracking.

Lithium is an important component in the supply chain of vital technological industries. Therefore, it critical to accurately analyze lithium's ability fulfill demand for lithium consumption. The concentration rivers, lakes, and seawater on Bangka Island was examined using ICP-OES. XRD SEM-EDX were used confirm carrier minerals rock morphology around waters. showed highest level, averaging 0.28 ppm. Other essential elements, including boron cobalt, had average levels 2.90 ppm 0.93 ppm,...

The current study successfully reported biosynthesized silver nanoparticles (bio-AgNPs) using an efficient green route, employing Archidendron bubalinum pods extract as reducing and stabilizing agent under sunlight irradiation. A. pod contains several fatty acid macromolecules, such palmitic acid, stearic cinnamic oleic acid. Those compounds contain hydroxyl carboxyl groups, which play a crucial role in the reduction process of Ag ions to form nanoparticles. UV–Visible spectrophotometry...

Magnetic Fe3O4 nano-particles were prepared successfully from commonplace sands as a raw material. The synthesized by chemical co-precipitation of high purity iron separated through acidic leaching. characterization the was performed using X-ray diffraction, fourier transform infrared, scanning electron microscopy, transmission and potential zeta. Finally, used for adsorption humic acid (HA) aqueous solutions batch technique. effects pH, adsorbent dosage, agitation time, initial HA...

Antioxidant is an interesting bioactivity since it has several correlations with disease such as Alzheimer, cancer, ageing and many others in which were promoted by free radicals. Investigation on our endophytic fungus collection namely Fennelia nivea NRRL 5504 revealed that the fermented mediumhas antioxidant property against DPPH through radical scavenging effect. Fermentation liquid medium i.e. Potatoes Dextrose Broth, resulted reached about 86.51% (p < 0.05) of inhibition eighth day....

Hydroxyapatite-derived eggshell biowaste (Hap-Esb) has been fabricated and developed for the electrochemical detection of uric acid (UA). The physicochemical characteristics Hap-Esb modified electrodes were evaluated using a scanning electron microscope X-ray Diffraction analysis. Utilized as UA sensors, behavior (Hap-Esb/ZnONPs/ACE) was assessed cyclic voltammetry (CV). superior peak current response observed oxidation at Hap-Esb/ZnONPs/ACE, which 13 times higher than that Hap-Esb/activated...

AbstractThis study aims to investigate the use of rubber (Hevea brasiliensis) seeds, a solid agricultural waste, as novel adsorbent for adsorption Congo red (CR) from aqueous solution in batch mode. Experiments were carried out function contact time, dye concentration, dosage, pH, and temperature. Langmuir, Freundlich, Sips isotherm models applied describe parameters. The results showed that equilibrium time was 90 min. experimental indicate that, percentage increases with an increase...

The current study introduces a one-pot technique for synthesizing an environmentally benign and cheap composite adsorbent, namely ZnO-PPAC, the adsorption of Pb(II). designated adsorbent was prepared by incorporating green synthesized zinc oxide (ZnO) nanoparticles on activated carbon-derived from pineapple peel. adsorbents were characterized using XRD, SEM, EDS, FTIR, BET techniques. XRD pattern verifies that ZnO successfully immobilized onto PPAC in one pot synthesis system. surface areas...

This paper deals with the application of polyaniline conducting polymer as a new sensor material for detection phenol. The is designed using bare carbon paste electrode (cPE), nonimprinted polymer-modified (CPE/NIP) and imprinted (CPE/MIP). These electrodes were prepared by electropolymerization monomer (aniline) in presence phenol template onto electrode. A CPE/MIP which modified was able to detect analyte more selectively. Several results regarding decreasing activity discussed. ability...

This study aims to explore persistent microorganic pollutants (Poly chloro byphneyls (PCBs) and Organochlorine Pesticides (OCPs)) in sediment mud clams (Polymesoda erosa) Segara Anakan Lagoon (SAL). In addition, polycyclic aromatic hydrocarbons (PAHs) the were evaluated their risk consumption Bioaccumulation factor sediment. Concentrations of seven PCBs found range 0.11 ± 0.05 2.63 0.1 μg kg−1 sed dw. OCPs levels 0.2 2.9 0.01 P. erosa, 16 Polycyclic Aromatic Hydrocarbons (USEPA) from 103.34...

Abstract Pineapple peel waste contains antioxidant molecules. This paper describes a facile, efficient, and environmentally friendly approach for synthesizing ZnO nanoparticles using pineapple aqueous extract. method aims to reduce the use of harmful chemicals in producing zinc nitrate as salt precursor evaluating their antibacterial. extract was obtained by macerating powder distilled water. Engaging Zn(NO 3 ) 2 , extract, NaOH, NPs were successfully prepared biosynthesis. X-ray diffraction...

Abstract A facile and eco-friendly procedure was developed to fabricate zinc oxide nanoparticles (ZnO NPs) using an aqueous extract of mango fruit peel (MFP), a by-product agroindustry. The ZnO NPs were fabricated acetate as precursor MFP reducing capping agent in neutral environment (pH 7). UV-visible spectrum supported the formation NPs, showing distinctive absorption peak at 368 nm. presence crystalline phase identified by X-ray diffraction (XRD) analysis. Fourier transform infrared...

In this paper, a simple and selective molecularly imprinted polymer film-based electrochemical sensor is made by electropolymerizing glycine in the presence of Sunset yellow (SY) as template. The thin film electro-polymerization was characterized cyclic voltammetry square wave voltammetry. optimization important parameters, removal from developed electrode, analytical performance, analysis real sample are described. results showed that highly interferents such sodium chloride, glucose,...

Dye-Sensitized Solar Cell (DSSC) is a photovoltaic technology that eco-friendly, has affordable costs, an easy fabrication process, and high power conversion efficiency. The application of solid electrolytes in DSSC promising option compared to using liquid because easily cause corrosion on the photoanode counter electrode. role electrode crucial speed up electron transfer process enhance performance devices. Much research still uses lot platinum graphene which are relatively expensive...

Abstract The potential of pineapple peel as a biosorbent for heavy metal, Pb(II), was investigated. experiment carried out at various contact times, doses adsorbent, and pH the solution. Results obviously showed that has removing Pb(II) ions from aqueous solutions. adsorption depended on No significant difference observed when performed 4.0 5.0. scanning electron microscope (SEM) evaluation indicated surface (PP) is arranged like flakes fractures, in addition some pores are also present....

Chlorambucil is one of anticancer drug that has been mainly used in the treatment cancer disease. It an alkylating agent and can be given orally. Interaction chlorambucil presence 4-chloro butyronitrile not studied electrochemically. We presented investigation electrochemical reduction oxidation as a nucleophile acetone acetonitrile using cyclic voltammetry technique. The results showed value chemical reactivities (Kf) such solution system was higher than without nucleophile. found at...