Swedish lawmakers had said they would boycott this year's Nobel Prize ceremonies in Stockholm after the foundation initially invited representatives of the three countries to attend.
Yan Rachinsky denounced "the insane and criminal war of aggression against Ukraine" while accepting the award on Saturday.
This year's Nobel Prize in chemistry has been awarded in equal parts to Carolyn R. Bertozzi, Morten Meldal and K. Barry Sharpless for developing way of "snapping molecules together."
This year's Nobel Prize in physics has been awarded to research on how light and matter act on an atomic scale.
This year's Nobel Prize in physiology or medicine has been awarded to Swedish scientist Svante Pääbo for his discoveries on human evolution.
Instead, most of the laureates are receiving their awards in their home countries because the pandemic has disrupted the ceremonies yet again.
The Nobel Prize in physics was awarded for work on disorder, fluctuations and the ability to predict a changing climate.
Stanford's Paul Milgrom and Robert Wilson are honored for their "inventions of new auction formats." Auctions are now used to price Internet ads, wholesale electricity and fishing permits.
The scientists' work led to a test to protect blood transfusion recipients from hepatitis C and drugs to treat the infection that have saved millions of lives, according to the Nobel Assembly.