Dr. Isabelle S. Muller

Dr. Isabelle S. Muller obituary

Dr. Isabelle S. Muller

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Isabelle Muller Obituary

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Dr. Isabelle S. Muller, Ph.D.

Passage en français à suivre.

Isabelle S. Muller, Ph.D., age 66, of Fairfax, Virginia, passed away peacefully on September 22, 2025. She was born on June 20, 1959, in Mery-sur-Seine, France.

Born to Marie-Therese and Francois Poirot; Isabelle grew up in the French countryside of Champagne, where she enjoyed helping at her parent's bakery. She received her Doctorate of Philosophy in Physical Chemistry from Universite de Piere et Marie Curie in Paris, France, and began her career in the United States as a Berkeley Fellow alongside Nobel Prize laureate Glenn Seaborg, who discovered plutonium.

After meeting her husband Anthony, they built a home together where their children, Antoine and Alexandre, grew up in an environment that was studious, joyful and enriched by many friendships and extraordinary adventures.

Isabelle went on to become a distinguished nuclear chemist and her career was devoted to advancing the safe treatment and long-term stewardship of nuclear waste. A gifted scientist at the Vitreous State Laboratory, she specialized in the vitrification process, turning nuclear waste to glass. Her work informed cleanup strategies at the Hanford Superfund Site and helped shape international approaches to environmental protection and nuclear safety. As a pioneering woman in her field, she was a mentor and role model to many young scientists, especially women pursuing careers in chemistry and physics.

In addition to her professional accomplishments, Isabelle was deeply dedicated to Scouting for more than two decades, beginning when her sons joined Cub Scouts in 1996. She served as a den leader, advancement chair, merit badge counselor, and later as committee chair of both Pack 1127 and Sea Scout Ship 1942, guiding countless youth on their journeys to Eagle Scout. Her leadership, encouragement, and love for Scouting left a lasting impact on her community and the many young people she inspired.

Isabelle faced profound loss when her husband, Anthony B. Muller, passed away in 2005, leaving her to raise their two teenage sons on her own. She met this challenge with resilience, love, and unwavering commitment, devoting herself to her family while continuing her research and mentorship.

Isabelle was admired and loved as a mentor, collaborator, and friend; bringing passion, intellect, and warmth to every endeavor in guiding students and colleagues with generosity and dedication. She impacted so many with her tenacity, love, and commitment. Her legacy endures not only in the many publications and discoveries she leaves behind, but also in the lives she touched with kindness and inspiration.

Isabelle found great joy in gardening, traveling with her family to the beaches of North Carolina, visiting loved ones in France, entertaining, sharing her remarkable French cooking, going to classical music concerts and operas, cherishing time with friends, and caring for her beloved westie, Lulu.

Isabelle is survived by her two devoted sons, Antoine and Alexandre; her daughter in law, Jessica, her many family members in France and her dear friends around the world.

A memorial service will be held on October 3rd at 12:30pm at Fairfax Memorial in Fairfax, Virginia. Friends, family, and colleagues are invited to attend and honor Isabelle's life.

____________________________________________________________________________

Dr. Isabelle S. Muller, Ph.D.

Isabelle S. Muller, Ph.D., de Fairfax, Virginie, est décédée paisiblement le 22 septembre 2025 à l'âge de 66 ans.

Née de Marie-Thérèse et François Poirot le 20 Juin 1959 à Méry-sur-Seine, France, Isabelle a grandi dans la campagne française, o' elle aimait aider à la boulangerie-pâtisserie de ses parents.

Elle a obtenu son doctorat en chimie physique à l'Université Pierre et Marie Curie à Paris, et a commencé sa carrière aux États-Unis en tant que boursière à Berkeley aux côtés du lauréat du prix Nobel Glenn Seaborg, qui a découvert le plutonium.

Après avoir rencontré son mari Anthony, ils ont fondé ensemble une famille o' leurs enfants, Antoine et Alexandre, ont grandi dans un environnement studieux, joyeux et enrichi par de nombreuses amitiés et aventures extraordinaires.

Isabelle est devenue une chimiste nucléaire reconnue et sa carrière a été consacrée à faire évoluer le traitement à long terme des déchets nucléaires. Scientifique reconnue au Vitreous State Laboratory, elle s'est spécialisée dans le processus de vitrification, transformant les déchets nucléaires en verre. Son travail a défini les stratégies de nettoyage sur le site Superfund de Hanford et a contribué à façonner les approches internationales en matière de protection de l'environnement et de sécurité nucléaire. En tant que femme pionnière dans son domaine, elle a été un mentor et un modèle pour de nombreux jeunes scientifiques, en particulier des femmes poursuivant des carrières en chimie et en physique.

En plus de ses réalisations professionnelles, Isabelle s'est profondément investie dans le scoutisme pendant plus de deux décennies, commençant lorsque ses fils ont rejoint les Louveteaux en 1996. Elle a servi comme cheftaine de troupe et comme responsable des progrès des jeunes scouts, comme conseillère en badges de mérite, puis comme présidente du comité du Pack 1127 et du Sea Scout Ship 1942, guidant d'innombrables jeunes sur le chemin menant au rang d'Eagle Scout. Son leadership, ses encouragements, et son engouement pour le scoutisme ont laissé une empreinte durable sur sa communauté et les nombreux jeunes qu'elle a inspirés.

Isabelle a fait face à une perte profonde lorsque son mari, Anthony B. Muller, est décédé en 2005, la laissant élever seule leurs deux fils adolescents. Elle a relevé ce défi avec résilience, amour et engagement sans faille, se consacrant à sa famille tout en poursuivant ses recherches et son mentorat.

Isabelle était admirée et aimée comme mentor, collaboratrice et amie ; apportant passion, intelligence et chaleur à chaque entreprise en guidant étudiants et collègues avec générosité et dévouement. Elle a marqué de nombreuses personnes par sa ténacité, son amitié et son engagement. Son héritage perdure non seulement à travers les nombreuses publications et découvertes qu'elle laisse, mais aussi dans les vies qu'elle a touchées avec gentillesse et inspiration.

Isabelle trouvait une grande joie dans le jardinage, les voyages en famille sur les plages de Caroline du Nord, les visites aux proches en France, les réceptions, le partage de ses talents remarquables en cuisine française, les concerts de musique classique et les opéras, le temps précieux passé avec ses amis, et les soins apportés à son adorable westie, Lulu.

Isabelle laisse derrière elle ses deux fils dévoués, Antoine et Alexandre ; sa belle-fille Jessica, ses nombreux membres de la famille en France et ses chers amis à travers le monde.

Une cérémonie commémorative aura lieu le 3 Octobre à 12h30 au Fairfax Memorial à Fairfax, Virginie. Amis, famille et collègues sont invités à y assister pour honorer la vie d'Isabelle.
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Upcoming Events

Oct

3

Service

12:00 p.m. - 1:00 p.m.

9902 Braddock Road, Fairfax, VA 22032

Send Flowers

Oct

3

Memorial service

1:00 p.m.

9902 Braddock Road, Fairfax, VA 22032

Send Flowers

Services provided by

Fairfax Memorial Funeral Home

Only 5 days left for delivery to next service.

Plan and Price a Funeral

Create a funeral plan and price estimate in less than 5 minutes.