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Tre chimici contro i batteri

Pubblicato il 07/10/2009Read time: 2 mins

Per gli studi sulla struttura e la funzione dei ribosomi, i complessi che traducono il codice genetico in proteine.

Venkatraman Ramakrishnan (wikipedia)

venkatraman

Scheda del Nobel Prize:

  • motivazione: "for studies of the structure and function of the ribosome"
  • 1/3 del premio
  • paese: Gran Bretagna
  • istituto: MRC Laboratory of Molecular Biology, Cambridge (Gran Bretagna)
  • anno e luogo di nascita:1952 (Chidambaram, Tamil Nadu, India)

Ada E. Yonath (wikipedia)

yonathyonath

Scheda del Nobel Prize:

  • motivazione: "for studies of the structure and function of the ribosome"
  • 1/3 del premio
  • paese: Israele
  • istituto: Weizmann Institute of Science, Rehovot (Israele)
  • anno di nascita: 1939

Thomas A. Steitz (wikipedia)

thomas steitz

Scheda del Nobel Prize:

  • motivazione: "for studies of the structure and function of the ribosome"
  • 1/3 del premio
  • paese: USA
  • istituto: Yale University, New Haven (CT, USA); Howard Hughes Medical Institute
  • anno di nascita: 1940

 

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Discovered a New Carbon-Carbon Chemical Bond

di Chiara D'Errico
Pubblicato il 16/10/2024

A group of researchers from Hokkaido University has provided the first experimental evidence of the existence of a new type of chemical bond: the single-electron covalent bond, theorized by Linus Pauling in 1931 but never verified until now. Using derivatives of hexaarylethane (HPE), the scientists were able to stabilize this unusual bond between two carbon atoms and study it with spectroscopic techniques and X-ray diffraction. This discovery opens new perspectives in understanding bond chemistry and could lead to the development of new materials with innovative applications.

In the cover image: study of the sigma bond with X-ray diffraction. Credits: Yusuke Ishigaki

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After nearly a year of review, on September 25, a study was published in Nature that has sparked a lot of discussion, especially among chemists. A group of researchers from Hokkaido University synthesized a molecule that experimentally demonstrated the existence of a new type of chemical bond, something that does not happen very often.