Champalimaud Foundation in the Research.com 2026 world ranking of best scientists

Markus W. Büchler, Director of the Champalimaud Foundation’s Botton-Champalimaud Pancreatic Cancer Centre, ranks first in Portugal in both of Research.com’s 2026 rankings. In the overall Best Scientists in the World ranking, he is placed 301st worldwide; in the Medicine ranking, 189th.

An academic and physician specialising in pancreatic surgery, Markus Büchler became Director of the Centre in 2023. An international reference in his field, he is one of Europe’s most experienced pancreatic and oncological surgeons, having performed more than 3,000 operations.

The Botton-Champalimaud Pancreatic Cancer Centre is the world’s first centre dedicated to both research and treatment of pancreatic cancer, one of the deadliest forms of cancer. Combining state-of-the-art services and equipment designed to ensure patients’ wellbeing and comfort, supported by the most advanced techniques and a distinctive architectural approach, the Centre brings together research laboratories, a day hospital, a surgical centre, and inpatient and intensive care units.

The Best Scientists in the World ranking is published annually by Research.com and is based mainly on bibliometric data from OpenAlex and Crossref, as well as other data sources. Citation metrics were collected on 12 January 2026. Each scientist’s position is determined solely by their h-index, a metric that combines the number of a researcher’s publications with the number of citations they receive.

The full list is available here.