Browsing by Subject "Drug screening"

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    Cytotoxic activity of resveratrol in different cell lines evaluated by MTT and NRU assays
    (Turkish Pharmacists Association, 2016) Anlar, H. G.; Bacanli, M.; Kutluk, B.; Başaran, A. A.; Başaran, N.
    Oxidative stress is the state of imbalance between the level of antioxidant defence system and production of reactive oxygen species (ROS) and is involded in the progression of several diseases such as inflammation, cancer, neurodegenerative disorders and cardiovascular diseases. It is suggested that plant polyphenols may act as antioxidants and therefore it has anti-cancer activities. Resveratrol (RV), is a naturally occuring polyphenolic compound which is found in many plant species including grapes, nuts, blueberries and raspberries. Data indicated that it has anti-oxidant, anti-inflamatory and anti-cancer activities. But there are also some studies reported that RV has not protective effects aganist cancer. In this study, the cytotoxicity of RV in human breast adenocarcinoma (MDA-MB 231), human cervical cancer (HeLa) and Chinese hamster lung fibroblast (V79) cells were evaluated by Neutral Red uptake assay (NRU) and MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) assays after incubation at 24 h. We obtained more or the less same results by two cytotoxicity assays. In the concentrations between 2-400 μM, RV seemed not to induce a pronounced cytotoxicity in all cell types. Even at highest concentrations, it showed almost no cytotoxic effects. So the IC50 values were not calculated at the studied concentrations.
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    ItemOpen Access
    Microfluidic-based plasmonic nanosensors for biological and chemical threats
    (CRC Press, LLC, 2024-01-01) Erdem, Özgecan; Yılmaz, Eylül Gülşen; Küçük, Beyza Nur; İnci, Fatih; Saylan, Yeşeren
    In the ever-evolving landscape of biological and chemical threat detection, the integration of microfluidics and plasmonic nanosensors has emerged as a revolutionary approach. This chapter explores the cutting-edge field of microfluidic-based plasmonic nanosensors as a powerful system for fast and sensitive detection of biological and chemical threats. The chapter begins with the fundamentals of microfluidics by highlighting their individual advantages. Case studies from recent research highlight the versatility of microfluidic-based plasmonic nanosensors in detecting a wide range of biological and chemical threats, including pathogens, toxins, explosives, and environmental contaminants. In conclusion, microfluidic-based plasmonic nanosensors represent a groundbreaking technology at the intersection of microfluidics and plasmonics, offering innovative solutions for the detection of biological and chemical threats. So, this chapter provides a comprehensive overview of microfluidic-based plasmonic nanosensors, their underlying principles, recent advancements, and future directions, making it an essential resource for researchers, scientists, and policymakers involved in threat detection and sensor development. © 2024 selection and editorial matter, Adil Denizli; individual chapters, the contributors.