Laboratory for Fluorescence Dynamics

A national research center for biomedical fluorescence spectroscopy at the University of California, Irvine


We gratefully acknowledge the sponsorship of the following organizations:

11th International Weber Symposium

The 11th International Weber Symposium on Innovative Fluorescence Methodologies in Biochemistry and Medicine, "Weber Symposium", will be held in Punta del Este, Uruguay, on January 8-13, 2023.

The symposium honors the fundamental and far-reaching contributions of Professor Gregorio Weber. It provides an overview of modern fluorescence methodologies and applications in the biological and medical sciences. Weber symposia were held in Búzios, Brazil, in 2017, in Hawaii in 2014, 2011, 2008, 2005, 2002, 1999, and 1995, and in Italy in 1986 and 1991.

Speakers describe state-of-the-art and emerging technologies used in their research programs. Topics include time-resolved fluorescence, phasors, Förster resonance energy transfer, multi-photon fluorescence microscopy, confocal microscopy, single molecule studies, fluctuation correlation spectroscopy, fluorescence imaging spectroscopy, macromolecular (nucleic acids and proteins) interactions, membrane dynamics, and quantitative cellular dynamics including metabolism.

Dates and Updates

  • Sunday January 8, 2023: Symposium begins
  • October 7, 2022: Deadline for registrations and change of abstracts
  • October 7, 2022: Cut off date for the special hotel room rate.

General Information


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The venue for the 2023 meeting is The Grand Hotel, Punta del Este, Uruguay. Punta del Este is located an hour and a half from Montevideo, the capital of Uruguay.


A block of rooms is being held at The Grand Hotel Punta del Este. We have negotiated a special group rate of $300 per night. The resort's cut-off date for obtaining the special group rate is October 7, 2022. Be advised that there are a limited number of rooms at this rate. When the rooms at the group rate are gone, the regular hotel rate (which is considerably higher since these dates are during the summer high-season in Uruguay) will apply. A limited number of rooms will be available for 2 days after the meeting for the special rate. To use the special group rate, hotel room reservations must be made by the symposium organizers.


Transportation from the Montevideo Airport (MVD) to Punta del Este and back will be available on January 8 (pickup times to be determined) and January 13 after the meeting ends.

Public transportation (buses, Uber) is available to go from Montevideo Airport (MVD, Aeropuerto Carrasco) to Punta del Este. There are two bus companies (COT and COPSA ESTE) with bus stops inside the airport. The duration of the trip is approximately 2 hours.


A visa may be required when travelling to Uruguay. Please check the visa requirements for your country.

Abstracts and Posters

All speakers and participants who wish to hang a poster and all speakers must submit an abstract to the symposium administrator. More than one poster may be submitted if approved by the committee. Abstracts and posters must be scientific in nature; posters containing advertising are not allowed. Abstracts should fit in a space approximately 6.5"x 6.5" (width x height), single-spaced in a 10-point font. Abstracts will be typeset for publication in the program.

The deadline for submitting abstracts for inclusion in the abstract book is October 7, 2022.

Size of poster area: Individual, free-standing poster boards will be used this year. The area allotted for each poster will be 4x4 feet. If your poster is in one large piece, it may extend below the 4-foot area, but cannot be wider than 4 feet.

Posters will be on display throughout the symposium. Times will be announced for the poster presentation sessions. Posters are not required for attendance.

Exhibits and Advertisements

Companies and institutions interested to advertise in the conference abstract book or exhibit at the Weber Symposium should refer to the exhibits page.

Student Fellowships

Ten fellowships will be available for Latin American students to cover travel and accommodation expenses.

Registration and Payments

We are in the process of setting up a registration form and will post a link here.

The deadline for registration or change of abstracts is October 7, 2022.


  • Professionals: free
  • Students: free
  • Table-top Exhibitor: $1000
  • Regular Exhibitors: $2500
  • Sponsors: $4000 or more

Tentative list of speakers

  1. Francisco Barrantes - Argentina
  2. Melisa Birol - Germany
  3. Francesco Cardarelli - Italy
  4. Soledad Celej - Argentina
  5. Ibrahim Cissé - USA
  6. Alberto Diaspro - Italy
  7. Michelle Digman - USA
  8. Elliot Elson - USA
  9. Joerg Enderlein - Germany
  10. Debora Foguel - Brazil
  11. Andre Gomes - Brazil
  12. Enrico Gratton - USA
  13. Hernan Gregco - Argentina
  14. Adán Guerrero - Mexico
  15. Taekjip Ha - USA
  16. Per Nik Hedde - Germany
  17. Elizabeth Hinde - Australia
  18. Caron Jacobs - South Africa
  19. David Jameson - USA
  20. Jay Knutson - USA
  21. Melike Lakadamyali - USA
  22. Don Lamb - Germany
  23. Markita Landry - USA
  24. Luca Lanzanò - Italy
  25. Luke Lavis - USA
  26. Valeria Levi - Argentina
  27. Leonel Malacrida - Uruguay
  28. Joachim Mueller - USA
  29. Sua Myong - USA
  30. Francesco Palomba - USA
  31. Vicente Parot - Chile
  32. Suman Ranjit - USA
  33. Susana A Sánchez - Chile
  34. Lorenzo Scipioni - USA
  35. Fernando Stefani - Argentina
  36. Ilaria Testa - Sweden
  37. Belén Torrado - USA
  38. Srigokul Upadhyayula - USA
  39. Alex Vallmitjana - USA
  40. Thorsten Wohland - Singapore
  41. Jerson Silva - Brazil
  42. Sergey Tetin - USA
  43. Amitabha Chattopadhyay - India

Organizing Committee

  • Leonel Malacrida
    Institut Pasteur de Montevideo, and Hospital de Clínicas, Universidad de la República, Uruguay.
  • David M. Jameson
    Professor of Cell and Molecular Biology, John A Burns School of Medicine, University of Hawaii at Manoa.
  • Enrico Gratton
    Principal Investigator of the LFD. Professor of Biomedical Engineering, Physics, and College of Medicine, University of California, Irvine.

Symposium Administrators

Marcela Diaz and Belen Torrado