25TH SYMPOSIUM ON PHOTONICS AND OPTICS SPO 2024

Session

Biomedical Imaging and Nanotechnology

Nov 8, 2024, 1:40 PM

Room 103 (Zoom and Faculty of Physics, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine)

Conveners

Biomedical Imaging and Nanotechnology

• Kateryna Yablochkova

18. Stem cells loaded with near-infrared nanoparticles for dynamic imaging of cancer, metastasis and inflammatory focuses

Dr Iuliia Golovynska (College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, China)

11/8/24, 1:40 PM

Invited Talk

Different types of nanoparticles are widely used because they have unique properties which make them suitable for the diagnostics and therapy (theranostics). They can improve detection selectivity and sensitivity, as imaging agents, delivery systems for encapsulated drugs, proteins and nucleic acids. Nanoparticles show high loading capacity, stability, high drug bioavailability and...

13. Optical transparency windows in near-infrared and short-wave infrared for skin, skull and brain: tissue optical properties and fluorescence bioimaging

Dr Sergii Golovynskyi (College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, China)

11/8/24, 2:00 PM

Invited Talk

Fluorescence imaging is a perspective noninvasive optical technique to visualize emitting molecules and nanomaterials in biological objects. The limitation of this method is a depth of imaging due to a strong attenuation of light by the tissue, however, the use of near-infrared (NIR) irradiation allows for the visualization of objects under the tissue surface for millimeters. The tissue...

136. Femtosecond Optical Kerr Effect for Biological Application

Dr Sandra Mamani (Institute for Ultrafast Spectroscopy and Lasers, Departments of Physics and electrical Engineering, The City College of the City University of New York, 160 Convent Avenue, New York, NY 10031, USA)

11/8/24, 2:20 PM

Oral

The Optical Kerr Effect (OKE) is a non-linear optical phenomenon in which an intense electric field induces a birefringence in the sample causing changes to the non-linear index (n2). The OKE is attributed to the distortion of the bound and free electrons and the disturbance of the molecular motions in a material.
Our work proposes the OKE as a potentially new method to differentiate differet...

39. Human stem cells carrying polymer nanoparticles with visible and near-infrared dyes for dynamic imaging of inflammatory focuses in the brain

Rana Zaki Abdul Bari

11/8/24, 2:35 PM

Oral

The chronic inflammation in the brain is one of the main causes of neuronal cell death and the progression of neurodegenerative disease. Currently, nanoparticles (NPs) are widely used because they have unique properties that make them suitable for diagnostics and treatment. However, NPs face different biological barriers that limit their successful biodistribution. The blood-brain barrier...

87. Nanostructured InGaN for biomedical application

Dr Oksana Koplak (Università degli Studi di Milano-Bicocca)

11/8/24, 2:45 PM

Oral

Epitaxial growth of GaN and InGaN heterostructures is very promising for biosensor applications due to their excellent chemical stability, biocompatibility with low toxicity to living cells, and high carrier mobility [1]. Compared to InN thin films, InGaN quantum dot (QD)-based biosensors demonstrate a twofold increase in sensitivity and a fivefold faster response. While significant progress...