Article
Chemistry, Analytical
Raghad Zein, Ibrahim Alghoraibi, Chadi Soukkarieh, Mohammad Taher Ismail, Abdalrahim Alahmad
Summary: The environmentally friendly synthesis of stable PVP-capped silver nanoparticles was carried out, with a focus on the influence of adding PVP during the synthesis process on the properties and antibacterial effect of the nanoparticles. The addition of PVP was found to protect the silver nanoparticles and provide good dispersion, resulting in stable nanoparticles with no inhibitor activity against bacteria.
Review
Chemistry, Multidisciplinary
Fahad Alhashmi Alamer, Rawan F. Beyari
Summary: Metallic nanoparticles are widely used in biomedical and engineering applications. This review discusses the importance, categorization, and characterization of silver, gold, and titanium nanoparticles, as well as the effects of metallic nanoparticles on the performance of PEDOT:PSS thin films. Furthermore, it provides an overview of the applications of electronic textiles and the impact of nanoparticles on the physical properties of PEDOT:PSS-coated cotton fabrics.
Article
Environmental Sciences
Jinhu Yun, Yan Liang, Yaseen Muhammad, Fei Liu, Yawen Dong, Shuangfei Wang
Summary: In this study, the significance of biochar on the retention and release of silver nanoparticles (AgNPs) in packed sand with rough or smooth surfaces was investigated. The results showed that biochar reduced the transport of AgNPs in both rough and smooth sands, and a small amount of biochar significantly enhanced the retention of AgNPs. The presence of biochar also resulted in nonmonotonic retention of AgNPs, with higher retention in rough sand. This study highlights the importance of considering collector surface roughness in biochar amendment for immobilizing colloidal contaminants in soil or groundwater.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Marine & Freshwater Biology
Maria Bille Nielsen, Janna Vavra, Annemette Palmqvist, Valery E. Forbes
Summary: The study examined the effects of exposure to un-coated AgNPs or silver nitrate on the benthic deposit-feeding polychaete Capitella teleta. The results showed tolerance towards both AgNPs and AgNO3, with significant effects on reproduction and growth observed after eight weeks. Further investigations into the long-term effects of un-coated AgNPs on sediment-dwelling organisms are needed.
AQUATIC TOXICOLOGY
(2022)
Article
Multidisciplinary Sciences
Jeronimo Osorio-Echavarria, Juliana Osorio-Echavarria, Claudia Patricia Ossa-Orozco, Natalia Andrea Gomez-Vanegas
Summary: This study investigated the effects of growth time and silver nitrate concentration on the synthesis of AgNPs, highlighting the role of capping proteins in determining the size of nanoparticles. The best synthetic properties were found at 1 mM of AgNO3 concentration, 8 days of growth time, and 144 hours of reaction time. Obtaining nanometals from microorganisms could be a new method of synthesis with low-cost and reduced toxic waste generation.
SCIENTIFIC REPORTS
(2021)
Article
Humanities, Multidisciplinary
Mahmoud Abo-Elmaaref, Mohamed Marouf, W. S. Mohamed, Walaa A. Abdel A. Wahab
Summary: This study used silver nanoparticles to inhibit fungal strains isolated from ancient linen textiles, and found that treated textiles showed improved mechanical and chemical properties as well as resistance to fungi for up to 3 months.
Article
Physiology
Zeinab Bakr, Shimaa Mohamed Said, Wafaa A. Mohammad, Gehad N. Aboulnasr, Naser A. Elshimy
Summary: This study aimed to investigate the damage caused by silver nanoparticles (Ag NPs) and silver nitrate (AgNO3) to land slugs. The results showed significant changes in biochemical, antioxidant, lipid peroxidation, and DNA fragmentation indicators after exposure to Ag NPs and AgNO3 for 15 days. Histopathological alterations were also observed in the digestive glands.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Chemistry, Physical
Oksana Velgosova, Livia Macak, Elena Cizmarova, Vladimir Mara
Summary: This study aimed to prepare silver nanoparticles through chemical reduction and analyze the influence of different reduction agents on the reduction rate and shape of the nanoparticles. The results showed that the combination of reduction agents significantly affected the synthesis rate of silver nanoparticles and the color of the solutions, which depended on the shape and size of the nanoparticles.
Article
Chemistry, Multidisciplinary
Karen Kolya Vardanyan, Eric Hecker
Summary: We study the effects of concentration and size of doped silver nanoparticles on the material properties of 6CB nematic. The results show that dispersed nanoparticles do not affect the liquid transition temperature, but decrease the dielectric anisotropy, elasticity, and viscosity of the material. The measured data also validate the predictions of the Gelbart-Ben Shaul theory.
Article
Biochemistry & Molecular Biology
Marius Stoian, Andrei Kuncser, Florentina Neatu, Mihaela Florea, Marcela Popa, Sorina N. Voicu, Mariana C. Chifiriuc, Anamaria Hanganu, Maria Elena Anghel, Madalina Tudose
Summary: This article presents the first efficient and environmentally friendly chemical reduction method for synthesizing aminated hyaluronic acid-based silver nanoparticles on the modified surface of titanium dioxide nanoparticles for biological applications. The study investigates the effect of nanoparticle size and chemical composition on the obtained materials and evaluates the antimicrobial, antioxidant, and anti-inflammatory activity of the fabricated composites.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Inorganic & Nuclear
Sujoy Das, Krishnan Bandyopadhyay, M. M. Ghosh
Summary: The concentration of the stabilizing agent, trisodium citrate, was varied and optimized in different experimental runs to tailor the particle size and size distribution of silver nanoparticles produced via wet chemical method. The synthesized silver nanoparticles were characterized by different structural and compositional tools to achieve stable particles with a mean size of 7 nm and a narrow size distribution.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Engineering, Environmental
Wanpeng Chen, Jiahui Song, Shaojie Jiang, Qiang He, Jun Ma, Xiaoliu Huangfu
Summary: EPS in activated sludge from wastewater treatment plants can influence interactions between nanoparticles, potentially altering their migration behavior. The presence of monovalent or divalent cations in solution affects the aggregation behaviors of silver nanoparticles and silver sulfide nanoparticles when aggregated by active EPS sludge. Understanding the surface mechanisms between EPS and NPs is crucial for comprehending the different fates of metal-based and metal-sulfide NPs in WWTP systems.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
K. Keshavamurthy, B. N. Swetha, Fatemah Farraj Al-Harbi, G. Jagannath, Aljawhara H. Almuqrin, M. Sayyed, Samia Ben Ahmed, A. G. Pramod, Shivaraja Itigi, P. Ramesh, D. Rajeshree Patwari, Narlagiri Linga Murthy, K. N. Sathish, S. Venugopal Rao
Summary: The study comprehensively investigated the effect of silver nanoparticles on tuning the optical nonlinear characteristics of Sm3+ doped borate-based glasses using the Z-scan technique. The outcomes showed reverse saturable absorption and positive refraction nonlinearity, indicating the potential of these materials for NLO device applications in the near-infrared region.
Article
Chemistry, Inorganic & Nuclear
Guohui Wang, Ying Zhang, Kai Chen, Yali Guo, Ke Chu
Summary: Palladium phosphides are efficient catalysts for electrocatalytic reduction of nitrate to ammonia (NRA). PdP2 nanoparticles on reduced graphene oxide exhibit a NH3 Faradaic efficiency of 98.2% and a NH3 yield rate of 7.6 mg h-1 cm-2 at -0.6 V (RHE). Theoretical calculations suggest that the PdP2 (011) surface activates and hydrogenates NO3- through a NOH pathway while inhibiting the competitive hydrogen evolution reaction.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Long Lin, Xiaogang Peng, Emilie Voirin, Bertrand Donnio, Mircea V. V. Rastei, Bertrand Vileno, Jean-Louis Gallani
Summary: By comparing the behavior of single-crystalline and multi-twinned silver nanoparticles, the influence of core crystallinity on magnetic properties was investigated. The results show that single-crystalline nanoparticles exhibit classical paramagnetic behavior, while multi-twinned nanoparticles show a combination of para- and ferromagnetic behaviors. Our hypothesis is that lattice defects within the core carry magnetic moments which couple through conduction electrons, with dipolar interactions also playing a local and macroscopic role.
HELVETICA CHIMICA ACTA
(2023)
Article
Biochemistry & Molecular Biology
Artur Przybyla, Joanna Kuc, Zbigniew Wzorek
Summary: This work presents the implementation of the ICP-OES silicon determination method for zinc and lead-bearing materials and waste at ZGH Boleslaw Mining and Metallurgical Works. The proposed method was validated and found to have a linear calibration curve up to a silicon concentration of 100 mg/L, with a working range of 0.10-50%. Precision tests were carried out on nine types of real samples and interferences of molybdenum, chromium, and vanadium were found to have no statistically significant effect on the measurement results.
Article
Chemistry, Physical
Halyna Kominko, Piotr Radomski, Anna K. Nowak, Zbigniew Wzorek
Summary: Research has shown that the waste toner-contaminated calcite mixture from toner processing plants can be used as an additive in concrete, and adding up to 5% of the mixture can improve the strength of the concrete.
Article
Chemistry, Applied
Ewelina Jamroz, Joanna Tkaczewska, Marzena Zajac, Paulina Guzik, Leslaw Juszczak, Agnieszka Kawecka, Katarzyna Turek, Malgorzata Zimowska, Aneta Wojdylo
Summary: Single-layered films based on furcellaran and protein hydrolysates from soybean bran were prepared, and a procedure for the preparation of double-layered films was developed. The addition of the second layer affected the functional properties of the films, increasing the thermal properties and antioxidant activity while decreasing the tensile strength and elongation at break parameters. The active films behaved similarly to synthetic films when used as packaging materials for storing butter.
Article
Materials Science, Multidisciplinary
Aleksandra Pacula, Alicja Drelinkiewicz, Malgorzata Ruggiero-Mikolajczyk, Piotr Pietrzyk, Robert P. Socha, Marcel Krzan, Malgorzata Nattich-Rak, Dorota Duraczynska, Elzbieta Bielanska, Malgorzata Zimowska
Summary: The study investigates the use of layered double hydroxides (LDHs) as precursors for metal oxides to prepare N-doped carbon materials. It is found that LDHs containing manganese can increase the quantity of carbonaceous product and affect its morphology, composition, and capacitive properties.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Lukasz Kuterasinski, Agnieszka M. Wojtkiewicz, Marta Sadowska, Paulina Zeliszewska, Bogna D. Napruszewska, Malgorzata Zimowska, Mateusz Pytlik, Andrzej Biessikirski
Summary: In this research, the detonation properties of Ammonium Nitrate Fuel Oil (ANFO) with modified zeolite Y were investigated. The addition of zeolite Y enhanced the detonation pressure, temperature, compression energy, and heat of explosion of ANFO. The volume of post-blast fumes was also reduced. The velocity of detonation of ANFO could be controlled by the choice of zeolite Y modification.
Article
Biochemistry & Molecular Biology
Jerzy Podobinski, Malgorzata Zimowska, Michal Sliwa, Jerzy Datka
Summary: The reaction of ethanol with CeO2 surface was investigated using IR spectroscopy. CeO2 was treated with vacuum and hydrogen for reduction, and with oxygen for oxidation. Ethoxy groups and new surface OH groups were formed at low coverages, while Ce-OH was consumed and ethoxy groups and water were formed at higher loadings. Three kinds of ethoxyls were found on CeO2, characterized by different frequencies of C-C-O units. The contribution of tridentate ethoxyls increased after reduction, and the contribution of monodentate ones increased after oxidation. Ethoxy groups were oxidized to acetate ions at higher temperatures, with the most reactive being monodentate ethoxyls. The highest amount of acetate species was observed on oxidized CeO2.
Article
Biochemistry & Molecular Biology
Jerzy Podobinski, Malgorzata Zimowska, Katarzyna Samson, Michal Sliwa, Jerzy Datka
Summary: The reaction of ethanol with various oxides was studied using IR spectroscopy. Ethanol reacts with surface OH groups on certain oxides to form ethoxy groups and water. The amount and types of ethoxy groups formed depend on the basicity of the oxides. Oxides with higher basicity produce more ethoxy groups, while oxides with lower basicity produce fewer ethoxy groups. The ability of oxides to oxidize the ethoxy groups and the temperature of the oxidation peak in the H-2-TPR diagram follow a similar trend, with CuO/ZrO2 showing the highest oxidation ability.
Review
Chemistry, Physical
Dagmara Slota, Karina Pietak, Josef Jampilek, Agnieszka Sobczak-Kupiec
Summary: The conventional intake of drugs and active substances through oral administration often results in unwanted side effects and the need for increased dosage to achieve the desired effect, as the substances also distribute to other tissues. Tissue engineering offers a solution by designing intelligent systems to deliver active substances precisely to the site of disease conversion.
Article
Chemistry, Physical
Agnieszka Sobczak-Kupiec, Sonia Kudlacik-Kramarczyk, Anna Drabczyk, Karolina Cylka, Bozena Tyliszczak
Summary: In this study, polyvinylpyrrolidone (PVP)/gelatin-based hydrogels incorporated with beta-cyclodextrin-tamoxifen complexes and nanogold were successfully synthesized. The materials showed excellent swelling capacity, environmental stability, and drug release ability, making them suitable for the delivery of anticancer drugs.
Article
Chemistry, Physical
Krzysztof Mazurek, Sebastian Druzynski, Urszula Kielkowska, Adam Wegrzynowicz, Anna K. Nowak, Zbigniew Wzorek, Adriana Wrobel-Kaszanek
Summary: In the 21st century, the amount of sewage sludge has increased due to industrial development and population growth. Proper management is required due to the biological and chemical hazards, as well as legal regulations. Pyrolysis of sewage sludge to biochar can be an effective method to neutralize and utilize waste.
Article
Chemistry, Multidisciplinary
Dagmara Slota, Karina Pietak, Wioletta Florkiewicz, Josef Jampilek, Agnieszka Tomala, Mateusz M. M. Urbaniak, Agata Tomaszewska, Karolina Rudnicka, Agnieszka Sobczak-Kupiec
Summary: Bioactive calcium phosphate ceramics (CaPs) are important components of bone structure. This study compared different ceramic powders and analyzed their physicochemical properties. The results confirmed the purity of the materials and the validity of the synthesis methods. Additionally, the specific surface area of the ceramics was found to affect drug release efficiency.
Article
Materials Science, Ceramics
Pawel Piszko, Bart lomiej Kryszak, Malgorzata Gazinska, Dagmara Slota, Agnieszka Sobczak-Kupiec, Marcin W. Lodarczyk, Aleksandra Szwed-Georgiou, Karolina Rudnicka, Konrad Szustakiewicz
Summary: Poly(glycerol sebacate) (PGS) was used to manufacture porous scaffolds with the addition of hydroxyapatite (HAp) through a thermally induced phase separation followed by thermal cross-linking and salt-leaching (TIPS-TCL-SL) process. The influence of HAp content on the mechanical properties and morphology of the scaffolds was investigated using compression tests and dynamic thermal mechanical analysis (DMTA). The results showed that the addition of 20 wt% HAp resulted in superior mechanical properties compared to other specimens.
CERAMICS INTERNATIONAL
(2023)
Review
Chemistry, Physical
Mateusz Czepiel, Magdalena Bankosz, Agnieszka Sobczak-Kupiec
Summary: Injection molding is a commonly used method to manufacture plastic products of specific shape and size. The technology has gained importance over the years and is now used in various industries. This review provides information on recent research in the field of modern injection molding techniques.
Article
Chemistry, Physical
Karina Niziolek, Dagmara Slota, Julia Sadlik, Emilia Lachut, Wioletta Florkiewicz, Agnieszka Sobczak-Kupiec
Summary: The study shows that different drying methods can affect the properties of synthetic hydroxyapatite powder, including shape and porosity. Materials modified with the antibiotic clindamycin demonstrate the potential to be used as carriers for active substances.
Review
Biochemistry & Molecular Biology
Milos Hricovini, Raymond J. Owens, Andrzej Bak, Violetta Kozik, Witold Musial, Roberta Pierattelli, Magdalena Majekova, Yoel Rodriguez, Robert Musiol, Aneta Slodek, Pavel Starha, Karina Pietak, Dagmara Slota, Wioletta Florkiewicz, Agnieszka Sobczak-Kupiec, Josef Jampilek
Summary: Knowledge of interactions between molecules is crucial for the advancement of biomedical and biological sciences. Chemical biology/biological chemistry serves as an interdisciplinary bridge, connecting the perspectives of chemistry and biology in the study of small molecules/peptidomimetics and their interactions in biological systems. Understanding the atomic structure and molecular properties in the context of cellular environment is vital for the design of highly druggable and drug-like medicines.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
