Article
Chemistry, Physical
Anna Gorczyca, Ewa Pociecha, Julia Maciejewska-Pro, Monika Kula-Maximenko, Magdalena Ocwieja
Summary: This study investigated the phytotoxic effects of silver nanoparticles (AgNPs) with different surface properties on wheat plants. The results showed that AgNPs stabilized with sodium hexametaphosphate exhibited the highest toxicity, while citrate-stabilized AgNPs showed the least toxicity to the seedlings.
SURFACE INNOVATIONS
(2022)
Article
Biochemistry & Molecular Biology
Ivana Vukoje, Vesna Lazic, Dusan Sredojevic, Margarida M. Fernandes, Senentxu Lanceros-Mendez, S. Phillip Ahrenkiel, Jovan M. Nedeljkovic
Summary: Different stability of coated silver nanoparticles can be achieved by using different carbohydrates as reducing and stabilizing agents. Carbohydrate-coated silver nanoparticles show a broader range of non-toxic behavior towards cells compared to bare silver nanoparticles, with differences in toxicity mechanism attributed to the presence or absence of Ag+ ions in the dispersion.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Physical
Nithin Joy, Anne-Marie Kietzig
Summary: We fabricated laser-induced periodic surface structures (LIPSS) on polished copper surfaces with different amounts of re-deposited copper nanoparticles to investigate their effect on surface chemistry. The re-deposition of nanoparticles during laser machining was found to be influenced by the volume of the machining environment, leading to changes in the surface chemistry of the machined samples. Ultrasonic cleaning to remove the re-deposited nanoparticles significantly increased the total surface carbon content, exposing the LIPSS surface to airborne carbonaceous species. The stability of the nanoparticles generated during laser machining was also evaluated to provide insights into their utility.
SURFACES AND INTERFACES
(2023)
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
Da Li, Philippe Nizard, Delphine Onidas, Aazdine Lamouri, Jean Pinson, Samia Mahouche-Chergui, Kelly Aubertin, Florence Gazeau, Yun Luo, Claire Mangeney
Summary: This study presents a method for obtaining stable silver nanoparticles (Ag NPs) functionalized with multifunctional polyaryl layers using diazonium salt chemistry. The resulting Ag NPs were characterized by UV-vis absorption, transmission electron microscopy (TEM), and surface-enhanced Raman spectroscopy (SERS). The formation of multilayers on the surface of Ag NPs allows for the generation of spectrally distinguishable SERS codes, thus expanding the library of available Raman tags. Proof-of-concept Raman imaging experiments on cancer cells demonstrated the potential of diazonium salt chemistry for designing Ag NPs-based SERS labels for Raman bioimaging.
Article
Chemistry, Multidisciplinary
Xuchao Jian, Ying Wang, Rukang Zhu, Yingying Pan, Huangqing Ye, Xiping Zeng
Summary: Carbon-coated silver nanoparticles (Ag@CNPs) were synthesized using a one-pot hydrothermal method with palm leaves as the reductant and carbon source. The as-prepared Ag@C NPs were characterized using SEM, TEM, XRD, Raman, and UV-vis analyses. Results showed that the diameter of Ag NPs and the coating thickness could be controlled by adjusting the biomass amount and reaction temperature. This study provides a green and simple method for the preparation of metal nanocrystals.
Article
Environmental Sciences
Jialong Chen, Dongyan Zheng, Ziwei Cai, Bohuan Zhong, Haiqiao Zhang, Zhijie Pan, Xiaoxuan Ling, Yali Han, Jinxue Meng, Huifang Li, Xiaobing Chen, He Zhang, Linhua Liu
Summary: The accumulation of exogenous silver nanoparticles (AgNPs) can cause liver injury, including cell death, which may be related to DNA methylation and cell autophagy. However, the molecular mechanisms of AgNPs in DNA methylation, autophagy, and cell death are still unclear. In this study, LO2 cells were treated with different concentrations of AgNPs, and it was found that AgNPs induced cell death, autophagy, and TFEB nuclear translocation, and led to DNA hypermethylation. Further experiments revealed that cell death induced by AgNPs may be facilitated through TFEB-dependent cell autophagy and increased DNMT1.
Article
Chemistry, Multidisciplinary
Ming-Yen Tsai, Ming-Chen Chang, Hsiu-Wen Chien
Summary: This study explored the effects of polydopamine formation on catalytic activity. Different molecular weights of PEI or PEG were mixed with dopamine at varying concentrations to obtain different PDA/PEI or PDA/PEG codepositions. AgNPs were observed on the surface of these codepositions after soaking in silver nitrate solution, and their catalytic activity for the reduction of 4-nitrophenol to 4-aminophenol was examined. Results showed that AgNPs on PDA/PEI or PDA/PEG codepositions were smaller and more dispersed compared to those on PDA coatings. The catalytic activity of AgNPs on all codepositions was better than that on PDA, and it was related to the size of AgNPs.
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
Chemistry, Analytical
Nguyen Ngan Giang, Seul Gi Kim, Insik In, Sung Young Park
Summary: In situ wireless monitoring of cell proliferation and detachment kinetics was conducted using pH-responsive zwitterionic polymer dots (Z-PDs), which demonstrated high sensitivity and potent means for monitoring and manipulating cell adhesion and detachment under various pH conditions. Z-PD-coated substrates promoted cell proliferation at neutral pH through pi-pi stacking of aromatic rings, while inducing cell detachment under acidic and basic conditions, resulting in enhanced resistance. Overall, Z-PD biosensors proved to be a favorable approach for monitoring cell-surface interactions, offering excellent pH responsiveness and the ability to acquire electrochemical signals via a smartphone.
ANALYTICAL CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Rachel M. McDougall, Hannah F. Cahill, Madeline E. Power, Tyson J. MacCormack, M-Vicki Meli, Jillian L. Rourke
Summary: This study investigated the cytotoxic properties of gold nanoparticles (AuNP) conjugated to different ligands. The results showed that the surface chemistry of AuNP affected the magnitude and mechanism of cell death.
Article
Biophysics
Jan Svoboda, Martin Kral, Marcela Dendisova, Pavel Matejka, Ognen Pop-Georgievski
Summary: This study investigated the growth of polydopamine on different substrates and found that the chemical nature of the substrate influences the structure of the resulting polydopamine in the early stages of layer formation. However, a unified chemical structure was observed at later stages of layer formation regardless of the substrate type. Various surface-sensitive techniques were utilized in this research to analyze the effects of polymerization time and substrate on polydopamine structure.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Biochemistry & Molecular Biology
Samuela Cataldi, Maria Rachele Ceccarini, Federica Patria, Tommaso Beccari, Martina Mandarano, Ivana Ferri, Andrea Lazzarini, Francesco Curcio, Elisabetta Albi
Summary: The combination of vitamin D3 and silver nanoparticles can enhance wound healing, possibly through regulating sphingolipid metabolism and inducing cellular transition.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
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
Chemistry, Multidisciplinary
Katharina I. Hegner, Chirag Hinduja, Hans-Ju''rgen Butt, Doris Vollmer
Summary: Methods for fabricating super-liquid-repellent surfaces have traditionally relied on perfluoroalkyl substances, but concerns over their environmental and health effects have sparked interest in fluorine-free alternatives. Polydimethylsiloxane (PDMS) is a promising candidate, although it only exhibits superhydrophobicity instead of liquid repellency. In this study, we demonstrate that a well-designed two-tier structure of silicon dioxide nanoparticles and surface-tethered PDMS chains can achieve super-liquid-repellency towards low surface tension liquids. Our work highlights the feasibility of scalable fabrication methods and environmentally friendly surface functionalization for fluorine-free super-liquid-repellent surfaces.
Article
Chemistry, Physical
Mehmet Kahraman, Ayse Ozbay, Handan Yuksel, Ramazan Solmaz, Baran Demir, Humeyra Caglayan
Article
Chemistry, Physical
Handan Yuksel, Ayse Ozbay, Mehmet Kahraman, Ramazan Solmaz
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Engineering, Chemical
Huseyin Zengin, Gulsen Aksin, Gulay Zengin, Mehmet Kahraman, Ibrahim Halil Kilic
POLYMER ENGINEERING AND SCIENCE
(2019)
Article
Biochemistry & Molecular Biology
Ilknur Sur-Erdem, Muhammed Sajid Hussain, Maria Asif, Nareg Pinarbasi, Ali Cenk Aksu, Angelika A. Noegel
MOLECULAR BIOLOGY REPORTS
(2020)
Article
Neurosciences
Safiye Cavdar, Yasemin Kuvvet, Ilknur Sur-Erdem, Merve Ozgur, Filiz Onat
NEUROSCIENCE LETTERS
(2019)
Article
Cell Biology
Ezgi Ozyerli-Goknar, Ilknur Sur-Erdem, Fidan Seker, Ahmet Cingoz, Alisan Kayabolen, Zeynep Kahya-Yesil, Firat Uyulur, Melike Gezen, Nazife Tolay, Batu Erman, Mehmet Gonen, James Dunford, Udo Oppermann, Tugba Bagci-Onder
CELL DEATH & DISEASE
(2019)
Article
Oncology
Fidan Seker, Ahmet Cingoz, Ilknur Sur-Erdem, Nazli Erguder, Alp Erkent, Firat Uyulur, Myvizhi Esai Selvan, Zeynep Hulya Gumus, Mehmet Gonen, Halil Bayraktar, Hiroaki Wakimoto, Tugba Bagci-Onder
Editorial Material
Chemistry, Multidisciplinary
Sebastian Wachsmann-Hogiu, Zachary J. Smith, Mehmet Kahraman
FRONTIERS IN CHEMISTRY
(2019)
Article
Clinical Neurology
Ilknur Sur-Erdem, Kerem Muslu, Nareg Pinarbasi, Mine Altunbek, Fidan Seker-Polat, Ahmet Cingoz, Serdar Onur Aydin, Mehmet Kahraman, Mustafa Culha, Ihsan Solaroglu, Tugba Bagci-Onder
NEUROLOGICAL RESEARCH
(2020)
Article
Oncology
Ilknur Sur Erdem
Summary: This study investigated the role of ferroptosis in glioblastoma using a model of ionizing radiation survivor cells. The results showed that ferroptosis plays a critical role after radiation exposure in glioblastoma and suggested the potential use of ferroptosis-inducing agents in treating glioblastoma.
ANTI-CANCER AGENTS IN MEDICINAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Fatma Uysal Ciloglu, Ayse Mine Saridag, Ibrahim Halil Kilic, Mahmut Tokmakci, Mehmet Kahraman, Omer Aydin
Article
Cell Biology
Ezgi Kaya-Aksoy, Ahmet Cingoz, Filiz Senbabaoglu, Fidan Seker, Ilknur Sur-Erdem, Alisan Kayabolen, Tolga Lokumcu, Gizem Nur Sahin, Sercin Karahuseyinoglu, Tugba Bagci-Onder
CELL DEATH DISCOVERY
(2019)
Article
Nanoscience & Nanotechnology
Aysun Korkmaz, Maya Kenton, Gulsen Aksin, Mehmet Kahraman, Sebastian Wachsmann-Hogiu
ACS APPLIED NANO MATERIALS
(2018)
Review
Nanoscience & Nanotechnology
Mehmet Kahraman, Emma R. Mullen, Aysun Korkmaz, Sebastian Wachsmann-Hogiu
Article
Genetics & Heredity
I. Ahmad, S. M. Baig, A. R. Abdulkareem, M. S. Hussain, I. Sur, M. R. Toliat, G. Nuernberg, N. Dalibor, A. Moawia, S. S. Waseem, M. Asif, H. Nagra, M. Sher, M. M. A. Khan, I. Hassan, S. Ur Rehman, H. Thiele, J. Altmueller, A. A. Noegel, P. Nuernberg