. . . . "the characteristic size of an individual particle before aggregation or agglomeration." . . . "Primary particle size" . "primary particle size of material" . . . . "Christos Vasileiou" . "2026-01-27T10:39:56.664Z"^^ . . . . . . . . . . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz1OobdRASd9SftHrLhG905OXjv8DHndvyWzXRJ5EDFPankMSnHZPHK+g2qEeRWdonstt55CLrpTpWsVv9xRtTqPidXHbnWLBXX42iCB+EnZNoKqAVKF5GxkSR38S0uTTq3aeQJbw2kTpx6LMkspmuH95fgAI/lfqPWrxdlI98jIeHQ14UXZpiWmkkvPgC9GVgmwHiG1hB/NCA2fKCOxVodN44OfhAPtkWmPJ40IcGPSalI4HRqgLLI5PabdRk3PiG81cUngmQU1Xk6EapzkRJGenkOlGsC5L4ktEPO6LS9uBMLTMLQDtGtkrcwqg5HmeKv7Ili3vgr3LL8/GaBBOLQIDAQAB" . "VkRcEhoj/Ru+rG2iF0vfqZT/RV2RaXZcs66mjJFdaGdUJJL2fZ48DT1SqqmGYv+GR/YQS0IQxWyldIlGy/gHumVlOwf4pfMun5nBi4cRwOJABJ4JRGqWXy/tCTTOlXb49/5XGUmbbyL4WumVi3YapcUrPfRgLQiPK4zSsy8jI8WGDqPs0n1lUGRdLKoNZYEYyZFAVUooxiGxXT7RpcZiCQ1cDjL0atYPaV+V2aSc2RnnMQhcl+Acnn/TodnLRjWOSKHvZ3RKZ/DfWnWG7nhTrEK5SQzAJOSuzDS8w8EMFNHSfYWD3m5UDkG9xLJJx67J/zI3VJvJYm8x/oaUQ/Zbig==" . . .