Severity: 8192
Message: Return type of CI_Session_files_driver::open($save_path, $name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 132
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
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Message: Return type of CI_Session_files_driver::close() should either be compatible with SessionHandlerInterface::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 292
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 166
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 235
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 315
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::gc($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
Line Number: 356
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 282
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_set_cookie_params(): Session cookie parameters cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 294
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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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Filename: Session/Session.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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Filename: Session/Session.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
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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: 315
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
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Filename: Session/Session.php
Line Number: 316
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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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Filename: Session/Session.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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Filename: Session/Session.php
Line Number: 375
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_set_save_handler(): Session save handler cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 110
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_start(): Session cannot be started after headers have already been sent
Filename: Session/Session.php
Line Number: 143
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Une stratégie simple pour moduler la fluorescence de points quantiques (QD) de MoS2 est décrite. La fluorescence de MoS2 QD a d'abord été désactivée par l'ajout de Cr (VI), puis la fluorescence éteinte a été activée par l'introduction d'acide ascorbique (AA) dans le mélange. L'extinction de la fluorescence de MoS2 QD par Cr (VI) a été attribuée à l'effet de filtre interne à la fluorescence. Après l'ajout de AA, Cr (VI) a été réduit en Cr (III) et la fluorescence a été restaurée. Cette découverte a été appliquée à la détection par fluorescence du Cr (VI) dans l'eau de boisson et de l'AA dans des échantillons de sérum. De plus, le présent procédé a été étendu pour la détection à la mise sous tension d’une importante biomarqueur phosphatase alcaline (ALP). Il existe une relation linéaire entre l'intensité de la fluorescence et les concentrations d'ALP dans la plage de 2,5 à 50 U / L, et la limite de détection est de 0,34 U / L. Les résultats ont montré que les MoS2 QD présentent un grand potentiel en tant que sonde fluorescente multifonctionnelle pour la détection des ions métalliques, des petites molécules biologiques et des protéines. Résumé graphique La fluorescence de MoS2 QD peut être désactivée par Cr (VI), et la fluorescence étouffée peut être encore activée par addition d’acide ascorbique ou d’acide ascorbique généré enzymatiquement. Cela permet la détection sélective du Cr (VI), de l’acide ascorbique et de la phosphatase alcaline sur la base de la fluorescence de MoS2 QD.
Source: https://www.ncbi.nlm.nih.gov/pubmed/30242729