Article
Chemistry, Physical
Anurag Gautam, Pragya Komal, Ram Sevak Singh, Prabhat Gautam, S. K. Manjari, R. S. Ningthoujam
Summary: This paper reports the direct synthesis of water dispersed gold nanoparticles encapsulated in polyvinyl alcohol (PVA) as a reducer and capping agent. The nanoparticles were found to have a fcc crystal structure with a size of around 22 nm, as confirmed by XRD and SEM analysis. The UV-visible analysis showed a surface plasmon resonance band at approximately 550 nm, confirming the formation of gold nanoparticles, which was further supported by EDX analysis.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Electrical & Electronic
Masoud Shabani, Ehsan Saebnoori, S. A. Hassanzadeh-tabrizi, Hamid Reza Bakhsheshi-Rad
Summary: Nickel ferrite magnetic nanoparticles were successfully synthesized using the in-liquid plasma method, with the optimal solution showing the highest crystallinity and specific surface area. The nanoparticles demonstrated good ferromagnetic properties with high coercivity and saturation magnetization at room temperature.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Changzhen Wang, Xueqing Hai, Jia Li, Yupeng Liu, Xiaosheng Yu, Yongxiang Zhao
Summary: By varying the reduction temperature, the structure of NiCu-phyllosilicate catalysts can be adjusted to selectively regulate the Ni(Cu)-L acid cooperative active sites, thereby improving the hydrogenation activity and selectivity of 1,4-butynediol.
DALTON TRANSACTIONS
(2023)
Article
Materials Science, Multidisciplinary
S. Sugi, S. Radhika, C. M. Padma
Summary: In this study, zinc ferrite nanoparticles with controlled morphology were synthesized using a less explored coprecipitation technique. The presence of polyvinyl alcohol (PVA) as a mediator resulted in larger crystallite size, refined morphology, smaller particle size, and higher surface to volume ratio of the zinc ferrite nanoparticles. The sample exhibited narrow bandgap energy, ferrimagnetic behavior, and showed photocatalytic and antibacterial activity.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Ceramics
Philips O. Agboola, Imran Shakir, Sajjad Haider
Summary: NiFe2O4/CdO nanocomposites were prepared using a co-precipitation method, and the weight percentage of CdO had a significant impact on the photocatalytic performance of the composites. Among all the composites, the one with 15% CdO exhibited the best photocatalytic efficiency.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
J. Martinez Rubio, M. A. Palomar-Padilla, M. E. Cano, J. Escalante, N. Casillas, I Ceja, A. Gutierrez-Becerra, M. Barcena-Soto
Summary: The surfactants Fe(AOT)(2) and Ni(AOT)(2) were used as precursors in the synthesis of Fe3O4 and NiFe2O4 nanoparticles, with successful ionic substitution confirmed by FTIR and MS results. The controlled size of magnetic nanoparticles was achieved by mixing aqueous surfactant solutions with Fe3+(or Fe2+) in a basic environment, with AOT(-) molecules limiting nanoparticle growth. The use of M(AOT)(2) surfactants as precursors opens up possibilities for synthesizing magnetic nanoparticles with well-defined properties.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
Poonam Siwatch, Kriti Sharma, Nirmal Manyani, Jasmeen Kang, S. K. Tripathi
Summary: In this study, thin films of NCO-PVA were prepared by chemical methods and characterized using various techniques. The results indicate that the nanocomposite films have potential for supercapacitor device fabrication, particularly flexible supercapacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
M. A. Islam, A. K. M. Akther Hossain
Summary: This research work focuses on the magnetic properties, nature of the magnetic phase transition, magnetocaloric effect, and critical scaling of magnetization of various Co1-xCrxFe2O4 (x = 0, 0.125, 0.25, 0.375, and 0.5) samples. The results show that the magnetocaloric effect is reliable for samples with x = 0.125, 0.250, and 0.375.
Article
Polymer Science
Amin Fatoni, Aziz Wijonarko, Mekar Dwi Anggraeni, Dadan Hermawan, Hartiwi Diastuti, Zusfahair
Summary: Glucose biosensors based on porous alginate cryogel supplemented with NiFe2O4 nanoparticles showed a linear response to glucose detection under optimized operational conditions, with a calculated detection limit of 0.32 mM and a limit of quantification of 1.06 mM.
Article
Biochemistry & Molecular Biology
Seyedeh-Maryam Hasheminya, Jalal Dehghannya, Ali Ehsani
Summary: The effect of zinc oxide nanoparticles on basil seed mucilage-polyvinyl alcohol films was investigated. The concentration of nanoparticles influenced the moisture content, solubility, permeability, mechanical properties, color, light transmission, and antibacterial and antifungal activities of the films.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Analytical
Emilly C. Silva, Priscilla J. Zambiazi, Thiago V. B. Ferraz, Juliano A. Bonacin, Raimundo R. Passos, Leandro A. Pocrifka
Summary: Nanoporous metals are of great interest in catalysis and energy storage; the effects of magnetic fields on electrochemical processes alter the performance of capacitors; the presence of an external magnetic field can enhance the electrochemical performance of nickel ferrite nanoparticles.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Mohammad Mehmandoust, Nevin Erk, Ceren Karaman, Fatemeh Karimi, Sadegh Salmanpour
Summary: The study developed a highly sensitive electrochemical electrode based on Au@NiFe2O4 for accurate monitoring of EPR. Various spectral methods were used to investigate the structure of the composite material, showing high electrocatalytic activity and low detection limit for EPR detection.
Article
Multidisciplinary Sciences
Hassanien Gomaa, Eman M. Abd El-Monaem, Abdelazeem S. Eltaweil, Ahmed M. Omer
Summary: This study fabricated a montmorillonite/magnetic -NiFe2O4@amine-functionalized chitosan (MMT-mAmCs) composite as a green adsorbent for the removal of cationic methylene blue and crystal violet dyes from wastewater. The MMT-mAmCs composite exhibited high negative charges over a wide pH range, making it ideal for adsorbing cationic contaminants. The optimum pH for adsorption was found to be 7, and the composite displayed ferromagnetic behavior for easy separation. The maximum adsorption capacities of methylene blue and crystal violet were 137 and 118 mg/g, respectively, and the composite showed excellent reusability with over 87% removal efficiency after ten cycles.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Composites
M. Megahed, D. E. Tobbala, M. A. Abd El-baky
Summary: Hybrid nanofillers loading has been used to fabricate multifunctional composites, with silica and cobalt ferrite nanoparticles combined to form a new hybrid composite structure in this study. The resulting hybrid nanocomposites showed improved mechanical properties compared to individually loaded nanoparticles or pristine composite materials. The SEM images revealed good fiber/matrix interfacial bonding in the hybrid composite.
POLYMER COMPOSITES
(2021)
Article
Environmental Sciences
Syed Iqleem H. Taqvi, Amber R. Solangi, Jamil A. Buledi, Nadir H. Khand, Bindia Junejo, Almas F. Memon, Sidra Ameen, Atiya Bhatti, Pau-Loke Show, Yasser Vasseghian, Hassan Karimi-Maleh
Summary: This study developed a simple, green, and sensitive electrochemical sensor for the determination of pentachlorophenol (PCP). The synthesized nanoparticles were characterized to confirm their functionalities, surface texture, crystallinity, and elemental composition. The fabricated sensor exhibited good analytical applicability in different water samples, demonstrating a high potential for ultrasensitive determination of PCP.
Article
Electrochemistry
Mihaela Tertis, Petra-Lia Sirbu, Maria Suciu, Diana Bogdan, Ovidiu Pana, Cecilia Cristea, Ioan Simon
Summary: In this study, a biomimetic electrochemical sensor based on molecularly imprinted polymer (MIP) containing chitosan and graphene oxide was developed for the direct and selective detection of serotonin. The sensor exhibited a wide dynamic range, good stability, reusability, and excellent selectivity, making it promising for biomedical applications.
Article
Chemistry, Physical
Willi Andrei Uriciuc, Adina Bianca Bosca, Anida-Maria Babtan, Horatiu Vermesan, Cecilia Cristea, Mihaela Tertis, Petru Pascuta, Gheorghe Borodi, Maria Suciu, Lucian Barbu-Tudoran, Catalin Ovidiu Popa, Aranka Ilea
Summary: This study explores the correct processing of Co-Cr alloys to preserve their properties and safely use them in contact with oral cavity tissues. The electrochemical behavior of five commercial Co-Cr dental alloys with different compositions was analyzed, and their characteristics were determined. The study found that alloys with higher tungsten and iron content exhibited a stronger tendency for anodization, and new oxide compounds appeared after heat treatment. In conclusion, processing Co-Cr alloys through melting and casting remains a viable method that can support innovation in the context of digitalization of the manufacturing process.
Article
Biophysics
Loredana F. Leopold, Cristina Coman, Doina Clapa, Ioana Oprea, Alexandra Toma, Stefania D. Iancu, Lucian Barbu-Tudoran, Maria Suciu, Alexandra Ciorita, Adrian I. Cadis, Laura Elena Muresan, Ioana Mihaela Perhaita, Lucian Copolovici, Dana M. Copolovici, Florina Copaciu, Nicolae Leopold, Dan C. Vodnar, Vasile Coman
Summary: This study evaluated the effects of large-scale TiO2 and ZnO nanoparticles on in vitro-grown soybean plants. The results showed that ZnO nanoparticles exhibited higher toxicity compared to TiO2, leading to negative effects on plant growth and metabolic processes.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2022)
Article
Multidisciplinary Sciences
Geza Lazar, Fran Nekvapil, Sanja Matic-Skoko, Calin Firta, Dario Vrdoljak, Hana Uvanovic, Lucian Barbu-Tudoran, Maria Suciu, Luka Glamuzina, Branko Glamuzina, Regina Mertz-Kraus, Simona Cinta Pinzaru
Summary: This study evaluated the correlation between spectroscopic and chemical data with the lifetime development and movement pattern of gilthead seabream otoliths from different environments. Raman spectroscopy provided characteristic bands that were used to track the signal variability. The results showed that the Raman spectra can be used as a complementary tool for inferring fish migration or origin.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Multidisciplinary
Klara Magyari, Alexandra Dreanca, Istvan Szekely, Andra Popescu, Alexandra Feraru, Emoke Pall, Tamas Gyulavari, Maria Suciu, Mihai Cenariu, Emma Bobu, Lucian Baia, Monica Baia
Summary: Alginate-pullulan composites with good biocompatibility and bioactivity were synthesized and evaluated in vitro. The composite promoted cell growth, but its application was limited by the appearance of calcium oxalate on the surface.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Pharmacology & Pharmacy
Daria Stoia, Madalina Nistor, Maria Suciu, Raluca Borlan, Andreea Campu, Dumitrita Rugina, Dana Maniu, Simion Astilean, Monica Focsan
Summary: Diabetic retinopathy (DR) is a serious complication of diabetes that can cause blindness. In this study, a light-responsive targeted polymeric microcapsule was developed to encapsulate a near infrared (NIR) photoactive fluorophore - Indocyanine Green, and conjugated with Avastin to form an efficient in vitro targeted drug delivery system. The microcapsules showed biocompatibility and the ability to generate heat under NIR laser irradiation, leading to the release of Avastin. The Avastin-conjugated microcapsules were validated for in vitro targeted drug delivery and release under simulated DR conditions.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2023)
Article
Chemistry, Multidisciplinary
Anca D. Stoica, Bogdan Sevastre, Maria Suciu, Alina Elena Parvu, Marcel Parvu, Vlad Alexandru Toma, Ioana Roman, Camelia Dobre
Summary: This study aimed to investigate the antioxidant and protective effects of Plantago sempervirens extract on the follicular pool. The results showed that the extract could alleviate the reduction of follicular reserve, decrease in FSH and estrogen levels caused by cyclophosphamide, and maintain a normal estrus cycle.
APPLIED SCIENCES-BASEL
(2023)
Article
Pharmacology & Pharmacy
Geza Lazar, Fran Nekvapil, Branko Glamuzina, Tudor Tamas, Lucian Barbu-Tudoran, Maria Suciu, Simona Cinta Pinzaru
Summary: Researchers proposed a new drug formulation for slow release by using a biogenic carrier from blue crab carapace. The drug showed a slow-releasing pattern in acidic pH environments similar to neutral conditions, indicating its viability as an oral delivery alternative for anticancer drugs to reach the lower gastrointestinal tract.
Article
Microbiology
Alexandra Ciorita, Maria Suciu, Maria Coros, Codruta Varodi, Florina Pogacean, Lidia Magerusan, Valentin Mirel, Raluca-Ioana Stefan-van Staden, Stela Pruneanu
Summary: Bacterial infections pose a major threat due to antibiotic resistance, driving the need for new drugs or improved resources. Nanomaterials with high surface area and bactericidal properties show promise in combatting microbial infections. In this study, graphene decorated with silver nanoparticles (5 wt% Ag) exhibited inhibitory capacity against S. aureus and E. coli. The hybrid material was incubated with a high-efficiency particulate air (HEPA) filter, resulting in a modified filter with enhanced antibacterial properties, particularly against Gram-negative bacteria. The modified HEPA filter significantly affected the colony forming unit capacity of bacteria, suggesting its potential to improve existing technology.
Article
Chemistry, Multidisciplinary
Cigdem Tuc Altaf, Tuluhan Olcayto Colak, Arpad Mihai Rostas, Adriana Popa, Dana Toloman, Maria Suciu, Nurdan Demirci Sankir, Mehmet Sankir
Summary: Three different morphologies of ZnO nanostructures, nanoflower (NF), nano sponge (NS), and nano urchin (NU), were successfully synthesized via a mild hydrothermal method. Annealing at different temperatures showed that ZnO NS performed significantly better in terms of degradation kinetics compared to the other morphologies. The photocatalytic activity of ZnO nanocatalysts was found to be influenced by defect structure, pore diameter, and crystallinity. The ZnO NS-800 ? nanocatalyst exhibited a rate constant of 35.6 x 10(-3) min(-1) and excellent stability after a 5-cycle photocatalytic degradation of RhB.
Article
Pharmacology & Pharmacy
Ioana Madalina Buhazi, Ioana-Georgeta Grosu, Xenia Filip, Anca Petran, Septimiu Cassian Tripon, Calin Gabriel Floare, Maria Suciu
Summary: This study aimed to analyze the potential use of SiO2 nanoparticles coated with biocompatible polydopamine (SiO2@PDA) as a potential chemotherapeutic drug carrier. The results showed that concentrations above 10-100 μg/mL SiO2@PDA exhibited the best biocompatibility on human melanoma cells and could serve as a potential drug carrier template for targeted melanoma cancer treatment.
THERAPEUTIC DELIVERY
(2023)
Article
Chemistry, Analytical
Florina Truta, Alvaro Garcia Cruz, Mihaela Tertis, Christopher Zaleski, Gyako Adamu, Natalie S. Allcock, Maria Suciu, Maria-Georgia Stefan, Bela Kiss, Elena Piletska, Karolien De Wael, Sergey A. Piletsky, Cecilia Cristea
Summary: A highly sensitive and portable electrochemical sensor based on molecularly imprinted nanoparticles (nanoMIPs) was developed for the selective determination of amphetamine in street samples. The sensor employed nanoMIPs designed to specifically recognize amphetamine, which were then synthesized using solid phase synthesis. The nanoMIPs were immobilized onto screen-printed carbon electrodes using a composite film containing chitosan, nanoMIPs, and graphene oxide. Incorporation of ferrocenylmethyl methacrylate in nanoMIPs enabled electrochemical detection, with the signal dependent on the interaction between amphetamine and nanoMIPs. The sensor exhibited high sensitivity and satisfactory recoveries when tested with street samples, and the results were validated using UPL-MS/MS.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Mihaela Tertis, Manuela Za, Alexandra Pusta, Maria Suciu, Diana Bogdan, Cecilia Cristea
Summary: In this study, a nanostructured platform based on graphite and gold was developed for the rapid and reliable detection of gluten in food samples. The platform was used to construct an aptasensor for the selective detection of gliadin, the component of gluten responsible for triggering celiac disease. The aptasensor was able to detect this analyte in a concentration range of 10-50000 ng/L with a limit of detection of 3.4 ng/L. It proved to be sensitive and selective, detecting gluten even in gluten-free products such as rice flour, carob flour, soy flour, starch, and gluten-free breakfast cereals.
MICROCHEMICAL JOURNAL
(2023)
Article
Medicine, General & Internal
Codruta Eliza Ille, Elena-Alina Moaca, Maria Suciu, Lucian Barbu-Tudoran, Meda-Lavinia Negrutiu, Anca Jivanescu
Summary: Three CAD/CAM materials, Cerasmart (CS), Straumann Nice (SN), and Tetric CAD (TC), were assessed for biocompatibility and sustainability on human fibroblasts and keratinocytes cells. After being exposed to an acidic environment, CS and SN induced decreased mitochondrial activity and plasma membrane damage in fibroblasts, while TC showed necrotic effects. Oxidative stress was not observed in the cells treated with these materials. SEM analysis revealed that fibroblasts adhered well to all tested CAD/CAM materials, with CS and SN exhibiting weaker adhesion compared to TC. Overall, these materials are biocompatible and support cell attachment and dispersion.
MEDICINA-LITHUANIA
(2023)
Article
Polymer Science
Maximilian George Dindelegan, Violeta Pascalau, Maria Suciu, Bogdan Neamtu, Maria Perde-Schrepler, Cristina Maria Blebea, Alma Aurelia Maniu, Violeta Necula, Anca Dana Buzoianu, Miuta Filip, Alexandra Csapai, Catalin Popa
Summary: This study investigates a biopolymer-lipid hybrid microcarrier for the treatment of sensorineural hearing loss. Dexamethasone-loaded microparticles were prepared using a combination of biopolymers and lipid components, exhibiting physical and chemical stability. The results demonstrate sustained release of dexamethasone and protective effects on inner ear sensory cells.