Review
Chemistry, Multidisciplinary
Muhammad Ihtisham, Azam Noori, Saurabh Yadav, Mohammad Sarraf, Pragati Kumari, Marian Brestic, Muhammad Imran, Fuxing Jiang, Xiaojun Yan, Anshu Rastogi
Summary: The advancement in nanotechnology has brought benefits to various industries, medicine, and agriculture, but the application of nanomaterials may potentially harm the environment and ecosystems. The properties of nanoparticles affect their fate in the environment and their toxicological effects on living organisms. Understanding the impacts of silver nanoparticles and remediation methods is crucial for managing nanomaterials in the environment.
Article
Chemistry, Physical
Eduardo Padilla-Camberos, Karen J. Juarez-Navarro, Ivan Moises Sanchez-Hernandez, Omar Ricardo Torres-Gonzalez, Jose Miguel Flores-Fernandez
Summary: This study evaluated the toxicological effects of silver nanoparticles synthesized with plants. The results showed that these nanoparticles did not exhibit adverse effects at the tested concentrations, but little is known about their potential long-term effects on physiological systems.
Review
Biochemistry & Molecular Biology
Maciej Noga, Justyna Milan, Adrian Frydrych, Kamil Jurowski
Summary: In recent years, research on silver nanoparticles (AgNPs) has gained significant interest due to their potential as alternative antibacterial agents in medicine. This review summarizes the progress in AgNPs research, including synthesis methods, applications, toxicological safety, and in vivo and in vitro studies. The article focuses on the disadvantages of physical and chemical synthesis methods, their high cost and potential toxicity. Additionally, it highlights the biosafety concerns of AgNPs, such as their potential toxicity to cells, tissues, and organs.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Environmental Sciences
Victor Garcia-Torra, Amanda Cano, Marta Espina, Miren Ettcheto, Antoni Camins, Emma Barroso, Manel Vazquez-Carrera, Maria Luisa Garcia, Elena Sanchez-Lopez, Eliana B. Souto
Summary: Metal nanoparticles are widely studied for pharmaceutical applications, but concerns about their toxicity, including the increase of reactive oxygen species causing cellular apoptosis, have been raised. This review highlights the toxicity mechanisms of metal nanoparticles such as gold, silver, copper, and copper oxide, as well as the production methods. It also discusses strategies to reduce toxicity and surface modifications to enhance the safety of nanoparticles.
Article
Mechanics
Michal Rajnak, Bystrik Dolnik, Patrik Hodermarsky, Katarina Paulovicova, Roman Cimbala, Milan Timko, Peter Kopcansky
Summary: Magnetic nanoparticles in a non-polar ferrofluid can reassemble in external electric fields, influencing the magnetic response of ferrofluids. Under a static electric field, the magnetic susceptibility of a ferrofluid based on insulating oil and iron oxide nanoparticles decreases with increasing voltage, partially due to temperature increase. Other mechanisms such as nanoparticle trapping and aggregation induced by the electric field also contribute to the susceptibility drop.
Article
Toxicology
Subhayu Nayek, Imesha W. De Silva, Roberto Aguilar, Amie K. Lund, Guido F. Verbeck
Summary: Silver nanoparticles have diverse applications in medicine and various industries. Inhalation of these nanoparticles leads to accumulation in the lungs, liver, and kidneys, resulting in systemic toxicity.
JOURNAL OF APPLIED TOXICOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Lamia M. El-Samad, Nahed R. Bakr, Saeed El-Ashram, Eman H. Radwan, Karoline K. Abdul Aziz, Hussein K. Hussein, Abeer El Wakil, Mohamed A. Hassan
Summary: This study reveals the harmful effects of AgNPs on the midgut tissues of beetles, including disruption of the antioxidant defense system, DNA damage, and cell apoptosis. Additionally, abnormal histopathology and ultrastructure were observed. This study is the first to investigate the effects of low doses of AgNPs on beetle midgut tissues.
CHEMICO-BIOLOGICAL INTERACTIONS
(2022)
Article
Engineering, Environmental
Katarzyna Zawadzka, Aleksandra Felczak, Marta Nowak, Aleksandra Kowalczyk, Ireneusz Piwonski, Katarzyna Lisowska
Summary: The study described for the first time the ability of Gloeophyllum striatum to synthesize silver nanoparticles in an environmentally friendly extracellular manner, which showed excellent antibacterial activity. Additionally, the synthesized nanoparticles exhibited haemolytic and cytotoxic properties towards mammalian cells.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Arghadip Mondal, Kamalesh Sen, Anupam Mondal, Debojyoti Mishra, Priyanka Debnath, Naba Kumar Mondal
Summary: This study focused on the synthesis of silver nanoparticles from weeds and their mosquito larvicidal efficacy. The nanoparticles were found to be effective in killing mosquito larvae while having minimal impact on the aquatic ecosystem.
ENVIRONMENTAL RESEARCH
(2022)
Review
Agriculture, Dairy & Animal Science
Iqra Bano, Sylvie Skalickova, Safia Arbab, Lenka Urbankova, Pavel Horky
Summary: Animal nutrition is crucial for the productivity and sustainability of livestock production systems. Selenium nanoparticles (SeNPs) have both beneficial uses and potential toxicity in animals, and ensuring safety through a safe-by-strategy approach is important.
JOURNAL OF ANIMAL SCIENCE AND BIOTECHNOLOGY
(2022)
Article
Agronomy
Muhammad Shahbaz Asghar, Zahid Mahmood Sarwar, Abdulrahman A. Almadiy, Ashwag Shami, Rania Ali El Hadi Mohamed, Nazeer Ahmed, Minakshi Sanjay Waghulade, Pravej Alam, Fahd Mohammed Abd Al Galil
Summary: American bollworm, as a notorious pest, has developed resistance to synthetic insecticides due to widespread and repeated use. In this study, the efficacy of green synthesized nanoparticles and silver and zinc oxide nanoparticles at different concentrations were evaluated against the larvae. The results showed that nanoparticles had a high mortality rate on the larvae and affected the demographic parameters of the population. This technique has significant value in integrated pest management.
Article
Anatomy & Morphology
Qaisar Khan, Ali Muhammad Yousafzai
Summary: Silver nanoparticles (AgNPs) are widely used and have various applications. This study synthesized AgNPs using Bellis perennis leaves and assessed their toxicity against fish. The AgNPs showed significant antibacterial activity and accumulated in various organs of fish, leading to histological alterations and destruction.
MICROSCOPY RESEARCH AND TECHNIQUE
(2023)
Article
Engineering, Environmental
Dong Wang, Xing Zhou, Renfang Song, Changqing Fang, Zhen Wang, Chenxi Wang, Yingwei Huang
Summary: This study demonstrates the design and fabrication of flexible electronic sensors using biomimetic microstructures from natural lotus leaves and freestanding polypyrrole/silver hybrid films to detect pressures, stretching, and bending forces. The sensors exhibit high sensitivity and multifunctionality, showing promise for future applications in wearable electronics and human-machine devices.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Odwa Mbanga, Ewa Cukrowska, Mary Gulumian
Summary: This study used continuous flow through system to predict the behavior of gold, silver, and titanium dioxide nanoparticles in real life situations. The physicochemical properties and agglomeration state of the nanoparticles were examined before and after dissolution tests. The results showed that gold and silver nanoparticles were spherical, while titanium dioxide nanoparticles were irregular in shape. The half-times of dissolution for TiO2 NPs, AuNPs, and AgNPs were 13-14 days, 4-12 days, and 2-7 days respectively, indicating a hierarchy of biodurability and persistence.
Article
Polymer Science
Nikita M. Kuznetsov, Victoria V. Kovaleva, Danila A. Volkov, Yuriy D. Zagoskin, Artem Yu. Vdovichenko, Sergey N. Malakhov, Artem V. Bakirov, Eugeny V. Yastremsky, Roman A. Kamyshinsky, Alexei A. Stupnikov, Sergei N. Chvalun, Timofei E. Grigoriev
Summary: The effect of in situ formed silver nanoparticles doping on the electrorheological response of highly porous chitosan particles in suspensions of polydimethylsiloxane (silicone oil) is investigated. It is found that the direct reduction of silver nanoparticles by chitosan from solution enables the fabrication of highly porous chitosan particles with different silver content. A high and stable electrorheological response is observed in suspensions with a very low filler content of 1 wt%. The study explores the nature of the electrorheological effect through dielectric spectroscopy and suggests the opportunity to control the properties of stimuli-responsive materials by modifying the structure and physicochemical properties of the functional filler.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)