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  1. Science
  2. Master Degree
  3. Fisica [F1703Q - F1701Q]
  4. Courses
  5. A.A. 2024-2025
  6. 1st year
  1. Biophotonics Laboratory
  2. Summary
Insegnamento Course full name
Biophotonics Laboratory
Course ID number
2425-1-F1701Q120
Course summary SYLLABUS

Course Syllabus

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  • English ‎(en)‎
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Obiettivi

Lo studente apprenderà l’utilizzo di tecniche spettroscopiche avanzate per la caratterizzazione di nanomateriali, biomolecole e campioni biologici.

Contenuti sintetici

Tecniche spettroscopiche applicate a biosistemi. Misura di tempi di vita di fluorescenza di tipici fluorofori per microscopia ottica. Anisotropia di fluorescenza. Diffusione dinamica di luce polarizzata e depolarizzata. Spettroscopia di correlazione di fluorescenza.

Programma esteso

Misura di tempi di vita di fluorescenza di tipici fluorofori per microscopia ottica. Coloranti in soluzione e miscele. Determinazione delle costanti di legame fluoroforo-proteina da misure dei tempi di vita. Dimensione di proteine e loro aggregazione mediante anisotropia di fluorescenza. Diffusione dinamica di luce polarizzata e depolarizzata. Effetti di temperatura e dei sali sulla diffusione di proteine. Cinetiche di aggregazione. Spettroscopia di correlazione di fluorescenza: calibrazione, misure al variare della potenza e concentrazione. Fotofisica della GFP. FCS di nanoparticelle d’oro. Misure di molecular crowding.

Prerequisiti

I contenuti dei corsi del Corso di Laurea Triennale in Fisica.

Raccomandati: insegnamento di Biofotonica del CdS Magistrale in Fisica e/o Esperimentazioni di Biofotonica del Corso di Laurea Triennale in Fisica.

Modalità didattica

Circa otto ore di didattica erogativa iniziale, per il resto didattica interattiva laboratoriale, con attività formative pratiche in presenza nei laboratori di ricerca del gruppo di Biofisica, stanze 4054-4052-4051.

Materiale didattico

C.R.Cantor and P.R.Schimmel, “Biophysical Chemistry”, W.H. Freeman & Co, 1980;

J.R.Lackowicz, “Principles of Fluorescence Spectroscopy”, Springer, 2006;

A.Diaspro, “Confocal and two photon microscopy: foundations, applications and advances” edited by Alberto Diaspro, Wiley, 2002.

Periodo di erogazione dell'insegnamento

I semestre.

Modalità di verifica del profitto e valutazione

Lo studente deve redigere in lingua inglese una relazione sugli esperimenti svolti, sulla quale verterà il colloquio orale finale.
Ogni studente dovrà inoltre preparare una breve presentazione (10 min) su uno degli esperimenti svolti durante il corso.

Il voto finale sarà determinato dalla valutazione della relazione, della conoscenza dei vari argomenti trattati, dell’analisi dei dati sperimentali e del comportamento tenuto durante tutto il corso in laboratorio.

Orario di ricevimento

Su appuntamento.

Sustainable Development Goals

SALUTE E BENESSERE | ISTRUZIONE DI QUALITÁ | LAVORO DIGNITOSO E CRESCITA ECONOMICA | IMPRESE, INNOVAZIONE E INFRASTRUTTURE
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Aims

To learn to exploit advanced spectroscopic techniques to characterize nanomaterials, biomolecules and biological samples.

Contents

Time-resolved spectroscopic techniques applied to biosystems. Fluorescence lifetimes of typical fluorophores used in optical microscopy. Fluorescence anisotropy. Polarized and depolarized dynamic light scattering. Fluorescence correlation spectroscopy.

Detailed program

Fluorescence lifetimes measurements of typical fluorophores used in optical microscopy. Dyes in solution and mixtures of dyes. Fluorophore-protein binding constant evaluation from lifetimes measurements. Proteins size and aggregation studies by means of fluorescence polarization anisotropy. Polarized and depolarized dynamic light scattering. Temperature and salt concentration effects on protein diffusion dynamics. Aggregation kinetics. Fluorescence correlation spectroscopy (FCS): calibration of the optical setup, experiments versus excitation power and concentration. Green Fluorescent Protein photophysics. Gold nanoparticles FCS. Molecular crowding experiments.

Prerequisites

The topics covered in the different courses of the Bachelor Degree in Physics.

Recommended: the Biophotonics course of the Master Degree in Physics and/or the Experiments of Biophotonics course of the Bachelor Degree in Physics.

Teaching form

Approximately eight hours of initial instructional teaching, followed by interactive laboratory teaching, with practical training activities conducted in person in the research laboratories of the Biophysics group, rooms 4054-4052-4051.

Textbook and teaching resource

C.R.Cantor and P.R.Schimmel, “Biophysical Chemistry”, W.H. Freeman & Co, 1980;

J.R.Lackowicz, “Principles of Fluorescence Spectroscopy”, Springer, 2006;

A.Diaspro, “Confocal and two photon microscopy: foundations, applications and advances” edited by Alberto Diaspro, Wiley, 2002.

Semester

I semester.

Assessment method

Students are required to write a report in English describing the experiments performed and it will be the focus of the final oral examination.
Each student will also have to prepare a short presentation (10 min) on one of the experiments carried out during the course.

The final grade will be determined by the evaluation of the report, of the knowledge of the different topics covered in the lab, of the experimental data analysis and of the student’s behavior throughout the course in the laboratory.

Office hours

By appointment.

Sustainable Development Goals

GOOD HEALTH AND WELL-BEING | QUALITY EDUCATION | DECENT WORK AND ECONOMIC GROWTH | INDUSTRY, INNOVATION AND INFRASTRUCTURE
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Key information

Field of research
FIS/07
ECTS
10
Term
First semester
Activity type
Mandatory to be chosen
Course Length (Hours)
120
Degree Course Type
2-year Master Degreee
Language
Italian

Staff

    Teacher

  • MC
    Maddalena Collini
  • Laura D'Alfonso
    Laura D'Alfonso

Students' opinion

View previous A.Y. opinion

Bibliography

Find the books for this course in the Library

Enrolment methods

Self enrolment (Student)
Manual enrolments

Sustainable Development Goals

GOOD HEALTH AND WELL-BEING - Ensure healthy lives and promote well-being for all at all ages
GOOD HEALTH AND WELL-BEING
QUALITY EDUCATION - Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all
QUALITY EDUCATION
DECENT WORK AND ECONOMIC GROWTH - Promote sustained, inclusive and sustainable economic growth, full and productive employment and decent work for all
DECENT WORK AND ECONOMIC GROWTH
INDUSTRY, INNOVATION AND INFRASTRUCTURE - Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
INDUSTRY, INNOVATION AND INFRASTRUCTURE

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