. . . . "the indication that a material or particle exhibits a core region surrounded by a distinct shell layer." . . . "Core–shell structure presence" . . . . "Christos Vasileiou" . "2026-01-12T14:09:25.959Z"^^ . . . . . . . . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz1OobdRASd9SftHrLhG905OXjv8DHndvyWzXRJ5EDFPankMSnHZPHK+g2qEeRWdonstt55CLrpTpWsVv9xRtTqPidXHbnWLBXX42iCB+EnZNoKqAVKF5GxkSR38S0uTTq3aeQJbw2kTpx6LMkspmuH95fgAI/lfqPWrxdlI98jIeHQ14UXZpiWmkkvPgC9GVgmwHiG1hB/NCA2fKCOxVodN44OfhAPtkWmPJ40IcGPSalI4HRqgLLI5PabdRk3PiG81cUngmQU1Xk6EapzkRJGenkOlGsC5L4ktEPO6LS9uBMLTMLQDtGtkrcwqg5HmeKv7Ili3vgr3LL8/GaBBOLQIDAQAB" . "ZAuYBlmGliwXdf/1tuZhbszXm1CYSQnnQ5omJA1+7dAXUhf0E83h4a3IxyjL6NR6jLiXzrDKmytnOxmM9z20E/1SBnqydrbUDukbU0H4yM6n8ITHJejZXB3ZRqc36ui4fwdz9VLl6Bnrzwvvw689wE0iHWXNZsth/xluQ3j2bAu/abjS0N1GJ4PBBqYVNi1WyLVSefEqWshfOZSJCIJ4M3n5KFkMbbWYN8KU3Is0g9qK4uCQUsP4rFE+iloE2EyjEaGuxIqJj7+Nkc0s3UM21bkOYVcc+/a+lRIFYKekMh11BA/L3sha+6PwW8TrcXCsKLiVq18JepR5pk0zkpPLpg==" . . .