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WOMEN IN PHOTONICS 2020–WORKSHOP

https://www.biophotonics4future.com/wip-2020/

The detection, characterization and identification of microorganisms using surface-enhanced vibrational scattering (SEVS) spectroscopy including surface-enhanced Raman scattering (SERS) and surface-enhanced infrared spectroscopy (SEIRS) are attracting considerable research attention due to their potential to provide rich intrinsic molecular information from molecules and molecular structures in a close proximity of nanostructured noble metal surfaces. These techniques can allow rapid microbial characterization with a minimal sample preparation step. In this study, SERS and SEIRS were comparatively evaluated for the discrimination and identification of Candida Albicans (C. albican), Escherichia Coli (E. coli) and Staphylococcus Aureus (S. aureus.) using the citrate reduced colloidal silver nanoparticle (AgNPs) as substrates. The results showed that the SEIRS provides more accurate identification compared to FTIR. Similar to SERS experiments, a simple mixing of microorganism samples with colloidal AgNPs was satisfactory for SEIR experiments. This study suggests that SEIRS can be a potential technique for microbial analysis.   

WOMEN IN PHOTONICS 2022–WORKSHOP

EUROANALYSIS-ORAL PRESENTATION

https://euroanalysis2019.com/scientific-programme/

OPY-041-Hulya Yilmaz
A Surface-enhanced Raman scattering- thin layer chromatography approach for early cancer detection from blood samples

NANO OPEN WEBINAR-Sabanci University Nanotechnology Research and Application Center

https://www.youtube.com/watch?v=MvKQ_Of1v2w

NPs have the ability to enter the cells determines adhesive interaction such as van der Waals forces, steric interactions or electrostatic charges. Smaller NPs are able to pass physiological barriers easier by phagocytosis and other mechanism. The shape also determines cellular uptake efficiency and may affect cell viability. Surface functionalization is a crucial factor that can significantly change the toxicity of NPs and prevent NPs aggregating; it can also change their fate in biological systems.¹ Cellular uptake depends on different factors, such as NMs and cell type, but also on environmental properties and complexity of culture media.

1) Alkilany et all. Toxicity and cellular uptake of gold NPs: What we have learned so far? Journal of NPs Research . 2010. 12;2873;2896