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Message: Return type of CI_Session_files_driver::open($save_path, $name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Filename: drivers/Session_files_driver.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
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Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
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Message: Return type of CI_Session_files_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Function: __construct
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Message: Return type of CI_Session_files_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
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Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
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Message: Return type of CI_Session_files_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 315
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
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Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
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Message: Return type of CI_Session_files_driver::gc($maxlifetime) should either be compatible with SessionHandlerInterface::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 282
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Message: session_set_cookie_params(): Session cookie parameters cannot be changed after headers have already been sent
Filename: Session/Session.php
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File: /home/orthodiedw/nutridatabase/index.php
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Filename: Session/Session.php
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Filename: Session/Session.php
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File: /home/orthodiedw/nutridatabase/index.php
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Filename: Session/Session.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
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File: /home/orthodiedw/nutridatabase/index.php
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Filename: Session/Session.php
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Filename: Session/Session.php
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Line: 7
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Filename: Session/Session.php
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Line: 7
Function: __construct
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Filename: Session/Session.php
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Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
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Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
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Filename: Session/Session.php
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Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Des nanorodes de carbone mésoporeuses (MCNR) ont été préparées à partir de miel en tant que source de carbone et en utilisant des coquilles de crabe (Brachyuran) en tant que gabarit dur. La nanostructure unique des MCNR avec leur taille mésoporeuse uniforme, leurs sites défectueux abondants et de nombreux groupes fonctionnels oxygène a été caractérisée par des isothermes d’adsorption-désorption d’azote, une diffraction des rayons X, une spectroscopie Raman, une spectroscopie photoélectronique à rayons X et une spectroscopie infrarouge à transformée de Fourier. Les voltamogrammes cycliques d'une électrode en carbone vitreux (GCE) modifiés avec des MCNR révèlent des densités de courant de pic plus élevées et un potentiel de pic plus bas (-0,03 V vs. Ag / AgCl) pour l'électrooxydation à l'acide ascorbique (AA) par rapport à un GCE conventionnel et un nanotube de carbone GCE modifié. Les valeurs de mérite de ce capteur comprennent (a) une large plage linéaire (10-2770 muM), (b) une sensibilité électrochimique élevée (216,91 muA mM (-1) cm (-2)) et (c) une limite de détection basse ( 2,3 muM). Celles-ci se comparent favorablement aux données respectives pour une GCE modifiée par les CNT (50-2150 muM, 5,20 muA mM (-1) cm et 26,8 muM) et une GCE ordinaire (100-2000 muM, 0,58 muA mM (- 1) cm (-2) et 54,6 muM). La GCE modifiée a été appliquée avec succès à la détermination de l'AA dans des échantillons réels (enrichis), notamment une injection, des boissons sans alcool et du jus de citron frais. Par conséquent, le nouveau capteur peut être considéré comme un outil abordable pour la détection électrochimique de l'AA dans des échantillons réels. Résumé graphique Les nanorodes de carbone mésoporeuses (MCNR) ont été préparées en utilisant du miel comme source de carbone et des carapaces de crabe comme gabarit dur. Les MCNR modifiés ont utilisé une électrode en carbone vitreux (MCNRs / GCE) pour la détection de l’acide ascorbique (AA) par ampérométrie.
Source: https://www.ncbi.nlm.nih.gov/pubmed/30242490