Pratibha Gai

Pratibha Gai
Born	Pratibha Laxman Gai-Boyes India
Occupation(s)	Microscopist, Professor
Known for	Inventing the atomic-resolution environmental transmission electron microscope (ETEM)
Notable work	Development of atomic resolution ETEM

Dame Pratibha Laxman Gai-Boyes is a distinguished British microscopist serving as Professor and Chair of Electron Microscopy at the University of York. She previously led The York JEOL Nanocentre, which operates within the Departments of Chemistry and Physics. Gai is recognized for inventing the atomic-resolution environmental transmission electron microscope (ETEM) and is a dedicated supporter of women pursuing careers in science.

Education and early life

Raised in India, Gai developed an early passion for science, drawing inspiration from pioneers such as Marie Curie and receiving strong encouragement from her family. Although societal norms often discouraged women from entering physical sciences, she secured a national scholarship for science talent during her teenage years.

“Without the scholarships, it would have been extremely challenging since societal norms at that time did not envision women pursuing careers in sciences or chemistry. Even today, societal views, including those in the UK, do not always consider scientific disciplines as suitable paths for women."

She completed her doctoral studies at the University of Cambridge in 1974, specializing in weak beam electron microscopy at the Cavendish Laboratory.

Research and career

Gai has been a trailblazer in the field of in-situ electron microscopy applied to chemical sciences. Alongside Edward D. Boyes, she co-developed the atomic resolution environmental transmission electron microscope (ETEM), a breakthrough instrument that allows direct atomic-level observation of gas-catalyst interactions vital to chemical reactions. This advancement has significantly deepened insights into catalyst mechanisms and is extensively utilized by microscope producers, chemical industries, and academic researchers.

In 2009, while serving as co-director of the York JEOL Nanocentre at the University of York, Gai introduced a microscope capable of capturing chemical reactions at atomic resolution. Unlike traditional microscopes limited to vacuum conditions at ambient temperatures, this ETEM facilitates real-time observation under practical environments.

Her refinement of the ETEM spanned over twenty years, beginning with a prototype featuring lower resolution during her postdoctoral tenure at the University of Oxford, followed by nearly two decades at DuPont and the University of Delaware. Despite its commercial promise, she opted against patenting the ETEM to promote widespread scientific use and encourage fundamental research progress.

In addition to her technical contributions, Gai actively champions gender equality in scientific fields, highlighting the difficulties women face when balancing professional ambitions with family responsibilities. She motivates her female students to pursue excellence within this competitive discipline.

Awards and honours

• Recipient of the 2010 Gabor Medal and Prize for pioneering work in atomic resolution environmental transmission electron microscopy (ETEM).
• Appointed Fellow of the Institute of Physics in May 2016
• Named Fellow of the Royal Society of Chemistry in May 2016
• Honoured as a 2013 Laureate for Europe by the L'Oréal-UNESCO For Women in Science Awards
• Elected Fellow of the Royal Academy of Engineering in 2014
• Inducted as a Fellow of the Royal Society (FRS) in 2016
• Awarded The Asian Awards for Outstanding Achievement in Science & Technology in 2018
• Conferred Dame Commander of the Order of the British Empire in 2018 for contributions to Chemical Sciences and Technology
• Granted Honorary Fellowship by the Royal Microscopical Society in 2018