Advanced Optical Techniques in Biosciences  is an interdisciplinary resource that deals with the in-depth analysis of several industrially and economically important physicochemical properties that have a wide range of applications for the pharmaceutical sector, food sciences, the textile industry, drug delivery and tissue engineering. This comprehensive volume explores cutting-edge optical technologies revolutionizing biomedical research and diagnostics. From molecular-level investigations using carbon nanotubes to advanced imaging techniques like fluorescence lifetime imaging microscopy (FLIM) and quantitative phase imaging (QPI), readers will discover how optical science is transforming our understanding of biological systems. The text covers innovative approaches including photoacoustic imaging for regenerative medicine, quantum dot applications in high-resolution microscopy, and terahertz spectroscopy for biomedical research. Practical applications range from analyzing millet starch digestibility and detecting adulterated vegetable oils to quantifying exosomes and adapting expansion microscopy for virus research. The final chapter examines how deep learning (DL) models are enhancing computer-assisted diagnosis of Alzheimer's disease, highlighting the intersection of optical technologies with artificial intelligence. This essential resource provides graduate students, researchers and clinicians with a thorough understanding of modern optical diagnostic tools and their transformative potential in addressing critical biomedical challenges. Key Features: Provides comprehensive coverage of cutting-edge optical technologies Discusses interdisciplinary applications across multiple industries. Highlights the integration of artificial intelligence into optical technologies.