Karl Landsteiner blood group A nor of blood group B. Therefore, the immune systems of persons with blood group A, B or AB do not refuse the donation. Further, because persons with blood group AB do not form antibodies against either the antigens of blood group A or B, they can accept blood from persons with these blood groups, besides from persons with blood group O-negative. In today's blood transfusions only concentrates of red blood cells without serum are transmitted, which is of great importance in surgical practice. In 1930 Landsteiner was awarded the Nobel Prize in Physiology or Medicine in recognition
Nobel Prize controversies Hiroshi Amano and Shuji Nakamura for the blue light-emitting diode, did not recognize the decades of incremental work in developing the LED by other pioneers such as Oleg Losev and Nick Holonyak, and did overlook the actual inventor of the blue LED: Herbert Paul Maruska. The 2010 Nobel Prize in Physics was awarded to Andre Geim and Konstantin Novoselov of the University of Manchester "for groundbreaking experiments regarding the two-dimensional material graphene". Several problems with the factual accuracy of the supporting documents issued by the Nobel committee have been pointed out, including that they seem to wrongly attribute the discovery