. . . . "Because only 3–4 H-bonds can break together, there is an intrinsic strength limit, and shorter strands with fewer H-bonds reach the highest shear strength, at a critical length scale." . "prediction" . . "Notation basis: Stated in words in the abstract; the numerical length (reported as a few nanometres in the full text) is not in the vendored abstract and is not written here." . "Shorter beta-strands are stronger in shear, up to a critical length" . "\\tau_{\\max}(L) \\text{ is maximal at } L = L^{*},\\ \\text{with } L^{*} \\approx 3\\text{–}4 \\text{ H-bonds}" . "Sinan Keten et al., “Geometric Confinement Governs the Rupture Strength of H-bond Assemblies at a Critical Length Scale”, Nano Letters 8, 743-748 (2008), doi:10.1021/nl0731670; Abstract. Scope: Beta-sheet strands in shear" . "Sinan Keten, Markus J. Buehler. Geometric Confinement Governs the Rupture Strength of H-bond Assemblies at a Critical Length Scale. Nano Letters 8, 743-748 (2008). doi:10.1021/nl0731670" . "Sinan Keten, Markus J. Buehler" . "2008"^^ . "doi:10.1021/nl0731670" . "pmid:18269263" . "Geometric Confinement Governs the Rupture Strength of H-bond Assemblies at a Critical Length Scale" . . . "delphisci buehler-protein-materials claim extractor" . . . . "Claude Fable 5.1" . . . . . . . . . . . . "Quoted from the published abstract as returned by Europe PMC (2008-hbond-confinement.abstract.txt, sha256 880dc02fe6911c5cdb1ab49189a7e6b0f6dc782017ec700c7a498afd4193e722); the full text was not read (not in Europe PMC open-access subset). Checked by build/check.py." . . . "This universally valid result leads to an intrinsic strength limitation that suggests that shorter strands with less H-bonds achieve the highest shear strength at a critical length scale." . . "880dc02fe6911c5cdb1ab49189a7e6b0f6dc782017ec700c7a498afd4193e722" . "Checksum of the vendored text file inputs/2008-hbond-confinement.abstract.txt, not of the publisher's copy." . . . "Abstract of Geometric Confinement Governs the Rupture Strength of H-bond Assemblies at a Critical Length Scale, as read" . . "buehler-protein-materials" . "2026-11-08T04:38:11.893Z"^^ . . . . . "Sinan Keten et al. 2008 claim: Shorter beta-strands are stronger in shear, up to a critical length" . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyFHtPB6p0mCjDozxlOY9CmO3nBm7Te3jFbXyLmM+G1tGe47Da0jYIbhkl9Oo1ZjxmCa3LCwlEqK8gj6hEIcL4ahW30JXh9HycfKVk1bugkzMEV15tJdTzAU3sGMFnbNsn43xY2LFLy45tApkRm5byEiM7oRRrooIdwoQKnP4Wzq/bfAoJ9qvW+MGkelyOTd1jbSt+KfmT7xKmDfWzAHddUlWwMX2QJOLxDaffOteTop6ZRgPiNmPJKA/S62Gac9XtSYT3oDkZ6/nr5cxxNLpOyxTf5FPISiCe11xYO/unYjY+mwnOfA8yhJIyx1l0O9I0vpOpn+E5TvyHJV+oSTrvwIDAQAB" . "Q+P/zvVH1kH4dbVhjXnJ+Dp4bgyavnPHF6qECoWBMmV6q7gs8Fv+IXWK32aFRqNE6vi3QkbvPV7e22GFEB4PoUsjGkQoIzDOYWBxefrIA5F+OaG+3hJr73X2ywHncUETqjso1Kwa1UXG0o+ET+At/xffaSJkBkXAYSYaoaR7g6lyY29GVIje2HF8ZzZAHIVMhojxB+4IHbMUuFJTcwdImnY5Whe6wYcROh0FRB7aPA31nHGh25OBtbV1S8oEiF3eT5fMLxNkmt0PQlK1XsuZ9O9hEANKMBjCAR1TNZFSHy17sQU8r2SHBcKNQTKw5Yr5S0e42Fvr/0posY7l1BArQg==" . . .