While preparing for my contribution to the Nanotexnology 2023 conference, I have noticed that submissions from researchers affiliated with state universities of the Russian Federation have been accepted for the international conference. This fact implies the sharing of the latest scientific knowledge despite the ongoing war started in 2022. I strongly disagree with this approach, and I personally distance myself from active scientific communication with researchers officially connected to state institutions of Russia. With its criminal activities in Ukraine, Russia is violating fundamental principles of the international community, and also destroying nature with a potentially global impact. Scientific communication that ignores this fact supports the technological progress of the state that destroys human values in general. Out of respect for the many Ukrainian scientists who have fallen victim to this war, I firmly reject the active transfer of scientific knowledge to scientists affiliated to Russian state institutions as a matter of principle.