Spectroscopy methods and techniques

• Biomedical Engineering, Semester 1, position 1

Introducing students to fundamentals of spectroscopic methods and techniques. Through theoretical lectures and practical work student masters the understanding of light-matter interaction and how this interaction can be used to acquire information about structure of the matter. Through practical work on in the laboratory and analysis of spectral data student learns to apply acquired knowledge about structure of the matter in order to control quality of various products (in food industry, pharmacy and other industrial branches) as well as perform characterization of new materials, biomaterials and biological samples with the purpose of applications in biomedical engineering for early detection of bio-markers, pathological changes and diseases.

Upon successful completion of this course, students will be able to: •Use different measurement instruments and methods of UV-Vis / NIR and FTIR spectroscopy •Work in the laboratory and perform characterization of materials using appropriately selected spectroscopic methods •Determine composition, as well as the chemical and physical properties of the tested materials •Perform multivariate spectral analysis using computer software packages

Introduction to Spectroscopic methods and techniques. Classification of spectroscopy methods. Dual nature of light. Electromagnetic radiation. Light – matter interaction. Ultraviolet and visible spectroscopy. UV/VIS spectral interpretation, examples. Infrared spectroscopy: classification, types of spectrometers, accessorizes, sample preparation and acquisition modes. IR spectra interpretation. FTIR spectromicroscopy: transmittance, transflectance, attenuated total reflectance. Quantitative and qualitative analysis of FTIR hyperspectral images.Near infrared spectroscopy. Preprocessing of NIR spectra. Multivariate analysis: principal component analysis, soft independent modeling of class analogies, partial least squares regression, calibration and validation of models. Multivariate analysis applications on real spectral data. Raman spectroscopy. Applications of Raman spectroscopy.

1. Practical work using UV/Vis/NIR spectrometer Lambda 950: 1.1. Preparation of artificial food dyes solutions in water and determination of dye color on the basis of absorption peaks in visible region 1.2. Determination of protection factor of sunglasses on the basis of glass absorption in UV region 2. Practical work using FTIR imaging system Spotlight 400 (Perkin Elmer) using ATR mode: 2.1. Preparation of samples of 2 unknown pharmacological substances and spectral acquisition with the purpose of their identification. Identification of unknown substances using spectral database. 2.2. Preparation of aqueous glucose solutions with varying concentrations; acquisition of spectra and determination of the presence of glucose based on its absorption peaks in fingerprint region. Preparation of sodium chloride aqueous solutions, spectral acquisition and comparison with the spectra of aqueous glucose solutions. 3. Practical work using FTIR Spotlight 400 imaging system – imaging mode Demonstration of microspectroscopic analysis of cervical cytological smears belonging to different PAP groups. Acquisitions of hyperspectral images and identification of healthy and cancer cells based on their spectra.

Prerequisition for attending this course is that student is regulary attending МАS.

1. Written course material (handout) 2. Scientific articles (KOBSON) - University network is available on laboratory computers (Nanolab) and cabinet 300 3. FT-IR imaging system-microscope and spectrometer (Perkin Elmer)-Nanolab 4. UV/Vis/NIR spectrometer Lambda 950 (Perkin Elmer, USA) - Nanolab

Total assigned hours: 75

New material: 20
Elaboration and examples (recapitulation): 10

Auditory exercises: 10
Laboratory exercises: 20
Calculation tasks: 0
Seminar paper: 0
Project: 0
Consultations: 0
Discussion/workshop: 0
Research study work: 0

Review and grading of calculation tasks: 0
Review and grading of lab reports: 6
Review and grading of seminar papers: 0
Review and grading of the project: 0
Test: 6
Test: 0
Final exam: 3

Activity during lectures: 5
Test/test: 45
Laboratory practice: 20
Calculation tasks: 0
Seminar paper: 0
Project: 0
Final exam: 30
Requirement for taking the exam (required number of points): 40

Vitha, Mark F. Spectroscopy: Principles and instrumentation. John Wiley & Sons, ISBN: 978-1-119-43660-7, 2018.; Skoog, Douglas A., F. James Holler, and Stanley R. Crouch. Principles of instrumental analysis. Cengage learning, ISBN: 9781337468039, 2017.; Pavia, Donald L., et al. Introduction to spectroscopy. Cengage learning, ISBN: 9781305177826, 2014.; Jue, T. & Masuda, K., Application of near infrared spectroscopy in biomedicine. Berlin: Springer, ISBN: 978-1-4614-6251-4, 2013; Michael J. K. Thomas, David J. Ando, Ultraviolet and visible spectroscopy: Analytical Chemistry by Open Learning, 2nd Ed., John Wiley&Sons., ISBN: 978-0099449270, 2008.