COMMENTARY Correction for “A curvy, stretchy future for electronics,” by John A. Rogers and Yonggang Huang, which appeared in issue 27, July 7, 2009, of Proc Natl Acad Sci USA (106:10875–10876; first published June 30, 2009; 10.1073/pnas.0905723106).
The authors note that on page 10875, right column, the sentence beginning on line 22, “For example, ultrathin sheets of silicon are flexible, for the same reason that any material in thin film form is flexible: bending strains are inversely proportional to thickness” should instead appear as “For example, ultrathin sheets of silicon are flexible, for the same reason that any material in thin film form is flexible: bending strains are directly proportional to thickness.”