Who Has the Winning Ticket? A Radiant Raffle Demonstration
Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide A simple demonstration adaptable to classroom conditions is presented, which involves the preparation of raffle tickets using filter paper and the solution of selected fluorophores. With an appropriate dilution, the text written on the tickets is not visible to the naked eye; however, it becomes readable once put under a UV lamp. Besides being a conventional game of raffles with small giveaways, the activity can captivate and raise the spectators’ interest in a specific chemical phenomenon. Optionally, depending on the audience, the demonstration can be supplemented by an explanation of fluorescence, the presentation of some of the most important fluorophores, and a discussion of their applications.
Source: Journal of Chemical Education
Authors: Petra Dunkel, Bence Kontra, Barnabás Gere, Vuong Tran, Zoltán Kaleta
Institutions: Semmelweis University, Institute of Organic Chemistry
Language: English
Subfield: Physical and Theoretical Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
Awards: G2846072899, G5390813006
OpenAlex ID: W4408500213