Paula Svera

ORCID: 0000-0003-3128-1637
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Research Areas
  • Advanced Photocatalysis Techniques
  • Extraction and Separation Processes
  • Electrocatalysts for Energy Conversion
  • Adsorption and biosorption for pollutant removal
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Electronic and Structural Properties of Oxides
  • Electrochemical Analysis and Applications
  • Nanoparticle-Based Drug Delivery
  • Quantum Dots Synthesis And Properties
  • Copper-based nanomaterials and applications
  • Advanced battery technologies research
  • Gas Sensing Nanomaterials and Sensors
  • Recycling and Waste Management Techniques
  • Aerogels and thermal insulation
  • Silicone and Siloxane Chemistry
  • Carbon Nanotubes in Composites
  • Protein Interaction Studies and Fluorescence Analysis
  • Microbial Metabolites in Food Biotechnology
  • Organoselenium and organotellurium chemistry
  • Nonlinear Optical Materials Research
  • Orthopaedic implants and arthroplasty
  • Surgical Sutures and Adhesives
  • Arsenic contamination and mitigation
  • Minerals Flotation and Separation Techniques
  • Synthesis and properties of polymers

National Institute of Research and Development for Electrochemistry and Condensed
2015-2025

Polytechnic University of Timişoara
2018-2021

Copper nanoparticles (CuNPs) have attracted attention due to their low cost and high specific surface area. In this work, a simple inexpensive two-step synthesis method was proposed prepare highly stable well-dispersed spherical CuNPs in solution with particle size of approximately 37 nm. Synthesis carried on the presence complexing agent trisodium citrate (TSC), while for chemical reduction step, sodium borohydride (NaBH4) used. Taking into account potential type nanoparticles,...

10.3390/ijms26041628 article EN International Journal of Molecular Sciences 2025-02-14

Bioactive compounds extracted from plants can provide wide health benefits. However, some molecules have limited applications as pharmaceuticals due to their solubility, poor bioavailability, and low stability when exposed environmental factors. Their integration in formulations that deliver them physiological targets while preserving biological activity enhance usage improving human health. This research provides a delivery system design the mask bitter taste of salicin. Thus, novel...

10.3390/pharmaceutics16030369 article EN cc-by Pharmaceutics 2024-03-06

Water pollution caused by emerging contaminants is increasing due to rising urbanization, industrialization, and agriculture production; therefore, new materials with high efficiency for wastewater decontamination are needed. A perovskite material based on 1% Ag-doped LaMnO3 synthesized through a sol–gel technique was combined PVP in 1:10 (w/w) ratio subjected different temperature microwave conditions at various time intervals. The composite were obtained as thin films (S1, S2) or powders...

10.3390/met15020151 article EN cc-by Metals 2025-02-01

From the lanthanide group, part of rare earth elements (REEs), lanthanum is one most important given its application potential. Although it does not have severe toxicity to environment, increased usage in advanced technologies and medical fields scarce natural reserves point necessity also recovering from diluted solutions. Among multiple methods for separation purification, adsorption has been recognized as promising because simplicity, high efficiency, large-scale availability. In this...

10.3390/gels11050314 article EN cc-by Gels 2025-04-23

The European Union regards gallium as a crucial element. Because of that, the retrieval ions from secondary sources through diverse methodologies is utmost significance in an actual economical context. primary goal this study was to explore viability MgFe

10.3390/ma17235740 article EN Materials 2024-11-23

Gold is one of the precious metals with multiple uses, whose deposits are much smaller than global production needs. Therefore, extracting maximum gold quantities from industrial diluted solutions a must. Am-L-GA new material, obtained by an Amberlite XAD7-type commercial resin, functionalized through saturation L-glutamic acid, adsorption capacity has been proved to be higher those other materials utilized for adsorption. In this context, article presents results factorial design experiment...

10.3390/toxics9050111 article EN cc-by Toxics 2021-05-20

Adsorption recovery of precious metals on a variety solid substrates has steadily gained increased attention in recent years. Special was paid to the studies characterization adsorptive properties materials with high affinity for gold depending nature pendant groups present structure material. The aim work synthesize and characterize new material by using sol-gel synthesis method (designated as BCb/CB). In this case, involved following precursors: bismuth carbonate (III), carbon black,...

10.3390/ma16072837 article EN Materials 2023-04-02

This study aimed to evaluate the comparative biological effects of Polygonum aviculare L. herba (PAH) extract and quercetin-entrapped liposomes on doxorubicin (Doxo)-induced toxicity in HUVECs. HUVECs were treated with two formulations loaded PAH (L5 L6) quercetin (L3 prepared phosphatidylcholine L4 phosphatidylserine). The results obtained atomic force microscopy, zeta potential entrapment liposome efficiency confirmed interactions or free a controlled release flavonoids entrapped all...

10.3390/pharmaceutics13091418 article EN cc-by Pharmaceutics 2021-09-07

The need to develop advanced wastewater treatment techniques and their use has become a priority, the main goal being efficient removal of pollutants, especially those organic origin. This study presents photo-degradation pharmaceutical containing Kabi cytarabine, using ultraviolet (UV) radiation, synthesized catalyst, composite based on bismuth iron oxides (BFO). size bandgap was determined by UV spectroscopy, having value 2.27 eV. specific surface BET method, 0.7 m2 g−1. material studied...

10.3390/toxics12060405 article EN cc-by Toxics 2024-05-31

Medical and pharmaceutical research has shown that liposomes are very efficient in transporting drugs to targets. In this study, we prepared six liposome formulas, three which entrapped caffeic acid (CA), with only phospholipids without CA. Determination of entrapment efficiency (EE) showed regardless the used, percentage CA was up 76%. The characterization performed using Dynamic Light Scattering (DLS), Atomic Force Microscopy (AFM), zeta potential polydispersity about 75–99% had dimensions...

10.3390/pr9060912 article EN Processes 2021-05-22

In recent years, during industrial development, the expanding discharge of harmful metallic ions from different wastes (such as arsenic, barium, cadmium, chromium, copper, lead, mercury, nickel, selenium, silver, or zinc) into water bodies has caused serious concern, with one problematic elements being represented by selenium (Se) ions. Selenium represents an essential microelement for human life and plays a vital role in metabolism. body, this element acts powerful antioxidant, able to...

10.3390/gels9060497 article EN cc-by Gels 2023-06-19

Aggressive industrial development over the last century involved different heavy metals being used, including high quantities of molybdenum, which need to be treated before discharge in waters. Molybdenum's market price and applicability make its recovery a big challenge. In present study possibility recover molybdenum ions from aqueous solutions by adsorption on composite material based silica matrix iron oxides-SiO2FexOy-was evaluated. Tests were performed order determine influence...

10.3390/gels8020125 article EN cc-by Gels 2022-02-16

Intriguing micro-currents in the graphenic oxide flakes obtained from cracked fullerenes ozopolymers were predicted their Raman spectra. They are interpreted with aid of bondonic theory combined inverse information for quantum observed vs. free evolution ratio, respectively. The peculiar dots propagation these nanoscopic systems may suggest potentially critical phenomenology phase transition, and possible local superconductivity by passing C60 derivative to C70 based compound. These results...

10.1080/1536383x.2018.1433162 article EN Fullerenes Nanotubes and Carbon Nanostructures 2018-05-04

The aim of this study is the enhancement electrical properties thin films obtained from silver nanowires (AgNWs) deposited on a flexible polyethylene terephthalate (PET) support. First, AgNWs were by "polyol" liquid phase synthesis method in presence chloride ions. After purification, successively support PET doctor blade method. To improve adhesion coating to substrate, polymethyl methacrylate (PMMA) interposed between layer and substrate. have been studied depending number layers heat...

10.1080/02726351.2015.1066473 article EN Particulate Science And Technology 2015-07-29

Herein, we present the investigation of catalytical and fluorescence properties for Ni11(HPO3)8(OH)6 materials obtained through a hydrothermal approach. As part constant search new that are both cost effective electrocatalytically active oxygen evolution reaction (OER) in alkaline medium, study involves several graphite electrodes modified with mixed reduced graphene oxide (rGO) carbon black. The experimental results 0.1 mol L–1 KOH electrolyte solution show electrode rGO, 5 mg black 1...

10.3390/cryst12121803 article EN cc-by Crystals 2022-12-12

Organic–inorganic hybrid perovskites are a promising class of processable semiconducting materials that combine the favorable properties inorganic semiconductor with flexibility and low-temperature processability organic material.Here, we report on synthesis investigation novel polymer-perovskite nanoparticles system based LaMnO3:Ag nanocrystals protected by sodium polyacrylate polymer (PANa). The material was investigated various characterization techniques, i.e. X-ray diffraction, FT-IR,...

10.59463/japt.2024.2.07 article EN Journal of Agroalimentary Process and Technologies. 2024-06-30

10.3103/s1063455x22010106 article EN Journal of Water Chemistry and Technology 2021-11-01

In this study series of CdxZn1-xS solid solutions with different amounts Cd and Zn were synthesized by the hydrothermal treatment aqueous containing CdCl2, Na2S ? 9H2O ZnSO4 7H2O. The aim was to examine influence concentration processing conditions (hydrothermal temperature duration) on structure obtained powders their photocatalytic activity (in water splitting process). photocatalysts (with without Pd co-catalyst) analysed X-ray diffraction (XRD), atomic absorption spectroscopy (AAS),...

10.2298/pac1803287s article EN cc-by Processing and Application of Ceramics 2018-01-01

Materials of potassium niobate (KNbO3) with orthorhombic structure were successfully synthesized using two methods: solvothermal at 220 ºC for 12 hours and sol-gel technique 140 °C 4h; both obtained samples heat treated 600 4 hours, the influence synthesis methods on their properties was studied. KNbO3 materials prepared stoichiometric amounts NbCl5, KOH as reactants 1,2 propanediol reaction medium. The morphology powders investigated by X-ray diffraction (XRD), scanning electron microscopy...

10.1088/1757-899x/416/1/012076 article EN IOP Conference Series Materials Science and Engineering 2018-10-26

The present paper describes the preparation and characterization of a new dinuclear ligand based on terpyridine featuring diselenide unit. This compound was synthesized in two-step procedure that first involved insertion moiety carboxylic acid followed by Steglich esterification reaction between biscarboxylic containing unit 2,6-di(pyridin-2-yl)pyridin-4-ol (tpyOH). title characterized via FT-IR, Raman, NMR (1D 2D), UV-Vis spectroscopies elemental analysis. Emission properties were investigated.

10.3390/m1752 article EN cc-by Molbank 2023-12-20
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