Indicator Displacement Assays (IDAs): An Innovative Molecular Sensing Approach

Electrochemical Sensors Based on Indicator Displacement Assays

Author(s): Ishfaq Ahmad Rather* and Rashid Ali * .

Pp: 166-192 (27)

DOI: 10.2174/9789815165913124010009

* (Excluding Mailing and Handling)

Abstract

Owing to the low cost, fast response, easy miniaturization, portable instrumentation, and multiple analyte detection capabilities, electrochemical sensors stand out in the realm of sensing and thus occupy a prominent place in analytical supramolecular chemistry. Over the past several decades, the recognition of biologically and environmentally vital analytes via electrochemical responses (increase or decrease in current density), has attracted much attention from supramolecular chemists. The fabrication of electrochemical sensors through a competitive sensing phenomenon known as indicator displacement assay (IDA) has made them more realistic for target analyte detection. In this chapter, besides discussing various types and techniques of electrochemical sensors, we envisioned discussing diverse IDAbased electrochemical sensors for saccharides, biomarkers, neurotransmitters, and various other analytes. The authors are of the viewpoint that this chapter will meet the needs of the researchers working on the design, fabrication, and application of IDAbased electrochemical sensors.

Related Journals
Related Books
© 2025 Bentham Science Publishers | Privacy Policy
Request history8.2.27PHP Version180msRequest Duration26MBMemory UsageGET chapter/{id}/{param?}Route
  • warninglog[03:03:35] LOG.warning: Optional parameter $id declared before required parameter $request is implic...
  • Booting (96.31ms)time
  • Application (83.98ms)time
  • 1 x Booting (53.42%)
    96.31ms
    1 x Application (46.58%)
    83.98ms
    12 templates were rendered
    • ebook.chapter_detailschapter_details.blade.php#?blade
    • layouts.chapter_header_sectionchapter_header_section.blade.php#?blade
    • ebook.chapter_top_bannerchapter_top_banner.blade.php#?blade
    • ebook.chapter_bottom_bannerchapter_bottom_banner.blade.php#?blade
    • ebook.ebook_right_bannerebook_right_banner.blade.php#?blade
    • includes.inc_related_journalsinc_related_journals.blade.php#?blade
    • includes.inc_related_ebooksinc_related_ebooks.blade.php#?blade
    • layouts.appapp.blade.php#?blade
    • layouts._login_access_login_access.blade.php#?blade
    • layouts._header_header.blade.php#?blade
    • layouts._main_menu_main_menu.blade.php#?blade
    • layouts._footer_menu_footer_menu.blade.php#?blade
    uri
    GET chapter/{id}/{param?}
    middleware
    web, check_user_access
    controller
    App\Http\Controllers\ChapterController@GetChapterDetails
    namespace
    App\Http\Controllers
    where
    as
    chapter
    file
    app/Http/Controllers/ChapterController.php:1350-1704
    19 statements were executed24.54ms
    • Connection Establishedalphaeurekaselec_live_10_06_2022UserAccessCheck.php#24
      Backtrace
      • 9. middleware::check_user_access:24
      • 10. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 11. vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:50
      • 12. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 13. vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php:88
    • INSERT INTO visitor_ip_address (ip_address,visitor_agent,visitor_count, created_on,updated_on) VALUES ('314520269','',1,1739847815,1739847815) ON DUPLICATE KEY UPDATE visitor_count=visitor_count + 1, updated_on=1739847815
      860μsalphaeurekaselec_live_10_06_2022UserAccessCheck.php#24
      Backtrace
      • 11. middleware::check_user_access:24
      • 12. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:50
      • 14. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 15. vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php:88
    • INSERT INTO visitor_ip_address_detail (ip_address,visitor_url,visitor_count, created_on,updated_on) VALUES ('314520269','/chapter/22770',1,1739847815,1739847815)
      150μsalphaeurekaselec_live_10_06_2022UserAccessCheck.php#27
      Backtrace
      • 11. middleware::check_user_access:27
      • 12. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:50
      • 14. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 15. vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php:88
    • (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_journal_volume_trail WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_journal_volume_corporate WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_journal_volume_token WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_ebook_volume_trail WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_ebook_volume_corporate WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_ebook_volume_token WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_issue_trail WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_issue_corporate WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_issue_token WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_article_trail WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_article_corporate WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_article_token WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_chapter_trail WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_chapter_corporate WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_chapter_token WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_disease_corporate WHERE to_ip >= 314520269 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 314520269) limit 1
      13.76msalphaeurekaselec_live_10_06_2022UserAccess.php#784
      Bindings
      • 0: 314520269
      • 1: 314520269
      • 2: 314520269
      • 3: 314520269
      • 4: 314520269
      • 5: 314520269
      • 6: 314520269
      • 7: 314520269
      • 8: 314520269
      • 9: 314520269
      • 10: 314520269
      • 11: 314520269
      • 12: 314520269
      • 13: 314520269
      • 14: 314520269
      • 15: 314520269
      Backtrace
      • 14. app/Models/UserAccess/UserAccess.php:784
      • 15. middleware::check_user_access:114
      • 16. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:50
      • 18. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
    • select * from `chapter` where `chapter_id` = '22770' limit 1
      310μsalphaeurekaselec_live_10_06_2022ChapterController.php#1406
      Bindings
      • 0: 22770
      Backtrace
      • 16. app/Http/Controllers/ChapterController.php:1406
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
      • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:206
    • select CONCAT_WS(' ',au.first_name, ' ', ifnull(au.initials,''), ' ', au.last_name) as authors, CONCAT(au.last_name, IFNULL(CONCAT(' ', au.initials), ''), ' ', au.first_name) AS authorsRIS, CONCAT_WS(' ',au.last_name, ' ', ifnull(au.initials,''), ' ', au.first_name) as authorsCiteAs, CONCAT_WS(' ',au.first_name, IFNULL(CONCAT(' ', au.initials), ''), IFNULL(CONCAT(' ', au.last_name), '')) as authorsmodal , `au`.*, `af`.`ror_id`, `af`.`institution`, `af`.`department`, `af`.`country`, `af`.`city`, `af`.`address`, (GROUP_CONCAT(TRIM(BOTH ', ' FROM CONCAT(ifnull(concat(af.institution,','),''), ifnull(concat(af.department,','),''), ifnull(concat(af.address,','),''), ifnull(concat(af.city,','),''), ifnull(concat(af.country,','),''), ifnull(concat(af.postal_code,','),''), ifnull(concat(af.phone,','),''), ifnull(concat(af.fax,','),''))) SEPARATOR '|')) as `author_affiliation`, (GROUP_CONCAT(TRIM(BOTH ', ' FROM CONCAT(ifnull(concat(af.web_view,','),''))) SEPARATOR '|')) as `web_view` from `author` as `au` left join `author_affiliation` as `af` on `au`.`author_id` = `af`.`author_id` where `au`.`chapter_id` = '22770' group by `au`.`author_id` order by `au`.`article_id` asc, `au`.`sequence` asc
      2.93msalphaeurekaselec_live_10_06_2022Author.php#86
      Bindings
      • 0: 22770
      Backtrace
      • 13. app/Models/Author.php:86
      • 14. app/Http/Controllers/ChapterController.php:1411
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select * from `keywords` where `chapter_id` = '22770'
      190μsalphaeurekaselec_live_10_06_2022ChapterController.php#1415
      Bindings
      • 0: 22770
      Backtrace
      • 15. app/Http/Controllers/ChapterController.php:1415
      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 18. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
      • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:206
    • select * from `ebook` where `ebook_id` = 1343 limit 1
      200μsalphaeurekaselec_live_10_06_2022ChapterController.php#1430
      Bindings
      • 0: 1343
      Backtrace
      • 16. app/Http/Controllers/ChapterController.php:1430
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
      • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:206
    • select count(*) as aggregate from `subject_ebook` as `se` inner join `ebook` as `e` on `e`.`ebook_id` = `se`.`ebook_id` inner join `ebook_volume` as `v` on `v`.`ebook_id` = `e`.`ebook_id` where subject_id IN (select subject_id FROM subject_ebook WHERE ebook_id=1343) and se.ebook_id!=1343 and v.ebook_status='1'
      980μsalphaeurekaselec_live_10_06_2022Subject.php#238
      Backtrace
      • 16. app/Models/Subject.php:238
      • 17. app/Http/Controllers/ChapterController.php:1434
      • 18. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 19. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select distinct v.nid as volume_id,e.nid,e.title,v.issn,v.eissn,v.isbn,v.eisbn,e.ebook_id, v.image_file_name,v.file_path,v.flyer_link,v.ebook_volume_id, v.volume_name,v.doi,v.year_id,v.introduction from `subject_ebook` as `se` inner join `ebook` as `e` on `e`.`ebook_id` = `se`.`ebook_id` inner join `ebook_volume` as `v` on `v`.`ebook_id` = `e`.`ebook_id` where subject_id IN (select subject_id FROM subject_ebook WHERE ebook_id=1343) and se.ebook_id!=1343 and v.ebook_status='1' limit 10 offset 0
      670μsalphaeurekaselec_live_10_06_2022Subject.php#238
      Backtrace
      • 14. app/Models/Subject.php:238
      • 15. app/Http/Controllers/ChapterController.php:1434
      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 18. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select count(*) as aggregate from `subject_journal` as `sj` inner join `journal` as `j` on `j`.`journal_id` = `sj`.`journal_id` where subject_id IN (select subject_id FROM subject_ebook WHERE ebook_id=1343)
      370μsalphaeurekaselec_live_10_06_2022Subject.php#255
      Backtrace
      • 16. app/Models/Subject.php:255
      • 17. app/Http/Controllers/ChapterController.php:1435
      • 18. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 19. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select distinct j.nid as journal_nid,j.title,j.subtitle,j.issn,j.eissn,j.keyword,sj.journal_id,j.image_file_name,j.flyer_link from `subject_journal` as `sj` inner join `journal` as `j` on `j`.`journal_id` = `sj`.`journal_id` where subject_id IN (select subject_id FROM subject_ebook WHERE ebook_id=1343) limit 10 offset 0
      400μsalphaeurekaselec_live_10_06_2022Subject.php#255
      Backtrace
      • 14. app/Models/Subject.php:255
      • 15. app/Http/Controllers/ChapterController.php:1435
      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 18. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select `e`.*, `a`.*, `y`.`year`, `e`.`ebook_volume_id` as `ebook_volume_id`, `a`.`ebook_volume_id` as `ebk_vol_id`, `e`.`ebook_id` as `ebk_ebook_id` from `ebook_volume` as `e` left join `author` as `a` on `e`.`ebook_volume_id` = `a`.`ebook_volume_id` left join `year` as `y` on `y`.`id` = `e`.`year_id` where `e`.`ebook_volume_id` = 3710 and `e`.`is_uploaded` = 1
      450μsalphaeurekaselec_live_10_06_2022EbookVolume.php#271
      Bindings
      • 0: 3710
      • 1: 1
      Backtrace
      • 13. app/Models/EbookVolume.php:271
      • 14. app/Http/Controllers/ChapterController.php:1438
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select count(*) rcd from `ebook_volume` where `ebook_id` = 1343 and ebook_volume_id <> 3710 limit 1
      220μsalphaeurekaselec_live_10_06_2022EbookVolume.php#999
      Bindings
      • 0: 1343
      Backtrace
      • 14. app/Models/EbookVolume.php:999
      • 15. app/Http/Controllers/ChapterController.php:1462
      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 18. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select count(*) as total_count, content_type_access_id as access_type from ebook_access where content_type_id = '22770' and content_type = 'c' and ( (from_date <= CURDATE() and to_date >= CURDATE() and perpetual= 0) or (from_date is null and to_date is null and perpetual= 1) )
      280μsalphaeurekaselec_live_10_06_2022ContentAccess.php#647
      Backtrace
      • 11. app/Models/ContentAccess.php:647
      • 12. app/Http/Controllers/ChapterController.php:1465
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 14. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select count(*) as total_count, content_type_access_id as access_type from ebook_access where content_type_id = '3710' and content_type = 'v' and ( (from_date <= CURDATE() and to_date >= CURDATE() and perpetual= 0) or (from_date is null and to_date is null and perpetual= 1) )
      240μsalphaeurekaselec_live_10_06_2022ContentAccess.php#647
      Backtrace
      • 11. app/Models/ContentAccess.php:647
      • 12. app/Http/Controllers/ChapterController.php:1478
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 14. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Trial Access" as access_base_text, CASE j.type WHEN 111 THEN true ELSE false END as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"ebook_volume" as access_level,"" as chapter_id from `user_access_ebook_volume_trail` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 314520269 and j.to_ip >=314520269 )) and ((j.from_date <= 1739847815 and j.to_date >= 1739847815 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.volume_id = 3710) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Subscribed" as access_base_text, false as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"ebook_volume" as access_level,"" as chapter_id from `user_access_ebook_volume_corporate` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 314520269 and j.to_ip >=314520269 )) and ((j.from_date <= 1739847815 and j.to_date >= 1739847815 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.volume_id = 3710) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Token Based Access" as access_base_text, false as terms_popup, "R" as content_download_type, j.uc_id as restricted_user_access_key, "v" as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"ebook_volume" as access_level,"" as chapter_id from `user_access_ebook_volume_token` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 314520269 and j.to_ip >=314520269 )) and ((j.from_date <= 1739847815 and j.to_date >= 1739847815 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.volume_id = 3710)
      610μsalphaeurekaselec_live_10_06_2022UserAccess.php#1266
      Backtrace
      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ChapterController.php:1518
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Trial Access" as access_base_text, CASE j.type WHEN 111 THEN true ELSE false END as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_trail` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 314520269 and j.to_ip >=314520269 )) and ((j.from_date <= 1739847815 and j.to_date >= 1739847815 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 22770) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Subscribed" as access_base_text, false as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_corporate` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 314520269 and j.to_ip >=314520269 )) and ((j.from_date <= 1739847815 and j.to_date >= 1739847815 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 22770) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Token Based Access" as access_base_text, false as terms_popup, "R" as content_download_type, j.uc_id as restricted_user_access_key, "v" as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_token` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 314520269 and j.to_ip >=314520269 )) and ((j.from_date <= 1739847815 and j.to_date >= 1739847815 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 22770)
      640μsalphaeurekaselec_live_10_06_2022UserAccess.php#1266
      Backtrace
      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ChapterController.php:1549
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select b.banner_link, b.banner_name, b.banner_script, b.banner_remarks, b.banner_file_name, b.banner_placement, bd.content_type, bd.content_id from `tbl_banner` as `b` inner join `tbl_banner_detail` as `bd` on `bd`.`banner_id` = `b`.`banner_id` inner join `users` as `u` on `u`.`id` = `b`.`updated_by` where `b`.`banner_ebook` = 1 and `bd`.`content_type` = 'B' and `bd`.`content_id` = 3710 and `b`.`banner_from_date` <= 1739847815 and `b`.`banner_to_date` >= 1739847815 and `b`.`banner_status` = 'A' order by `b`.`banner_id` desc
      1.05msalphaeurekaselec_live_10_06_2022Banner.php#95
      Bindings
      • 0: 1
      • 1: B
      • 2: 3710
      • 3: 1739847815
      • 4: 1739847815
      • 5: A
      Backtrace
      • 13. app/Models/Banner.php:95
      • 14. app/Http/helpers.php:404
      • 17. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 18. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    • select count(*) as aggregate from `uc_cart_products` where cart_id='448224f8f8d8f5f5288bba3902b4a813'
      230μsalphaeurekaselec_live_10_06_2022Cart.php#271
      Backtrace
      • 15. app/Models/Cart.php:271
      • 16. view::layouts._header:260
      • 18. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 20. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    App\Models\Chapter
    1Chapter.php#?
    App\Models\Ebook
    1Ebook.php#?
        _token
        Vcil2jops15aEYc7rpKG0iiTVSjw9PTfKAPBDHlB
        uc_cart_id
        448224f8f8d8f5f5288bba3902b4a813
        _previous
        array:1 [ "url" => "https://alpha.eurekaselect.com/chapter/22770" ]
        _flash
        array:2 [ "old" => [] "new" => [] ]
        PHPDEBUGBAR_STACK_DATA
        []
        path_info
        /chapter/22770
        status_code
        200
        
        status_text
        OK
        format
        html
        content_type
        text/html; charset=UTF-8
        request_query
        []
        
        request_request
        []
        
        request_headers
        0 of 0
        array:17 [ "x-https" => array:1 [ 0 => "1" ] "host" => array:1 [ 0 => "alpha.eurekaselect.com" ] "priority" => array:1 [ 0 => "u=0, i" ] "cookie" => array:1 [ 0 => "wayfindertarget=eyJpdiI6ImZRWFEvUXZYdjhlcWwyM0pVUHZXNGc9PSIsInZhbHVlIjoieGdMbGU0SWczSDNaRzUyRmpoTHJqNDBPRDZCRmVVUEJNLzNuRm93VWVxTT0iLCJtYWMiOiIxMDc2Y2U5ZWE0MGVmMWY4OTE4MTQ4OGI4YzZmODg3ZDdkZTJiOGEzNmFlZmM0MjQ0ZDVkM2Y1NTBhNDI2NzgzIiwidGFnIjoiIn0%3D; XSRF-TOKEN=eyJpdiI6IlRDMVc1WHlWUTJPQlNnbjcrYUFvY1E9PSIsInZhbHVlIjoiUHJZT2JEMXRNMytEcFJHSnM3eTJ5KzNyaHlsNnkvUjJyNmE2ZkE3UCswMmhMSlNkSDRlSzNtYTRnUFV4SWd1M0o1QlRIdVMxV3pJOWhYd3RLUWNHNjJXMXpGODBzQkhVaFpITFZhb294WXpycEZBeXZZN1RJR29JWnY2MjFOaVgiLCJtYWMiOiIxZmJiOTJjODkwMzI2ZDg3MGIwY2EwNWU1OGVkNmI0M2Q5NmFmNTYxMTYyOGU1MzJkMDgzMmMwYWE5Mjk2OTA2IiwidGFnIjoiIn0%3D; alphaeurekaselectnet_session=eyJpdiI6ImdObTVhS1VUU3BaeEZldlhGTnJ0NWc9PSIsInZhbHVlIjoiRzF5TmdDSFFzclhJalFPSGZwVjlvUW53U0VXOWlyUXZNRFhHR2x0U2JmME5Lc3ZEbVI5d2hSUmhmdTRTVTZhQTRZOEFDek91STdSb1ZJWXFycU5ZUW53L1VWVnhZZGVKM2J4V0ZaMUtOMGFRQWFYWHNPMWhHcVNWL2N2OUxyS1IiLCJtYWMiOiIxNDAxNTQ0NmIxMzI1ODJjMzIwMzgzNjVmZDJkODZhOTE2NTQwNGVlZTZkZjg1ZjlkZDZkZjgwM2YwOGJhNzBjIiwidGFnIjoiIn0%3Dwayfindertarget=eyJpdiI6ImZRWFEvUXZYdjhlcWwyM0pVUHZXNGc9PSIsInZhbHVlIjoieGdMbGU0SWczSDNaRzUyRmpoTHJqNDBPRDZCRmVVUEJNLzNuRm93VWVxTT0iLCJtYWMiOiIxMDc2Y2U5ZWE0MGVm" ] "accept-encoding" => array:1 [ 0 => "gzip, deflate, br, zstd" ] "sec-fetch-dest" => array:1 [ 0 => "document" ] "sec-fetch-user" => array:1 [ 0 => "?1" ] "sec-fetch-mode" => array:1 [ 0 => "navigate" ] "sec-fetch-site" => array:1 [ 0 => "none" ] "accept" => array:1 [ 0 => "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7" ] "user-agent" => array:1 [ 0 => "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)" ] "upgrade-insecure-requests" => array:1 [ 0 => "1" ] "sec-ch-ua-platform" => array:1 [ 0 => ""Windows"" ] "sec-ch-ua-mobile" => array:1 [ 0 => "?0" ] "sec-ch-ua" => array:1 [ 0 => ""HeadlessChrome";v="129", "Not=A?Brand";v="8", "Chromium";v="129"" ] "cache-control" => array:1 [ 0 => "no-cache" ] "pragma" => array:1 [ 0 => "no-cache" ] ]
        request_cookies
        0 of 0
        array:3 [ "wayfindertarget" => null "XSRF-TOKEN" => "Vcil2jops15aEYc7rpKG0iiTVSjw9PTfKAPBDHlB" "alphaeurekaselectnet_session" => "zackxzR0vQ4kpIETkaDywQ2ScC8QZWf3Jn8wbxPV" ]
        response_headers
        0 of 0
        array:5 [ "content-type" => array:1 [ 0 => "text/html; charset=UTF-8" ] "cache-control" => array:1 [ 0 => "no-cache, private" ] "date" => array:1 [ 0 => "Tue, 18 Feb 2025 03:03:35 GMT" ] "set-cookie" => array:2 [ 0 => "XSRF-TOKEN=eyJpdiI6Im5mMHAwbkJ4LzlSOVZ0RXFwcy9QRHc9PSIsInZhbHVlIjoiOHlHUGkyUVN3cDlKUW5GbkRtc0xXajJYVENTa0xwZ0pEQkJQbmVYdEJaMkhpK2xwdGxuMEd0UE5MVEN4b3V1NzFNaFZJbk1NS0s5Tm9HcC96Snpzek9kNXNEQmlQNHJTbXZMT3oxR3B2SCtteTBRSU10VkpkRWsxM3p5bU55L0siLCJtYWMiOiI4MDkwYmQwNTE0NjNjMDVlNmUwNDhhNTdhMjUzMjc3YjA3NmQzNDVhNTVhODUyNTNkNTA0NWVjMGFkYmE1MzAzIiwidGFnIjoiIn0%3D; expires=Thu, 20 Feb 2025 15:03:35 GMT; Max-Age=216000; path=/; secure; samesite=laxXSRF-TOKEN=eyJpdiI6Im5mMHAwbkJ4LzlSOVZ0RXFwcy9QRHc9PSIsInZhbHVlIjoiOHlHUGkyUVN3cDlKUW5GbkRtc0xXajJYVENTa0xwZ0pEQkJQbmVYdEJaMkhpK2xwdGxuMEd0UE5MVEN4b3V1NzFNaFZJb" 1 => "alphaeurekaselectnet_session=eyJpdiI6InBURkVmeE5UaldLZDE2azhMZ1EyN2c9PSIsInZhbHVlIjoiR2VtNGdQclgvMUwxWHk3WlpTQTFvMWJHRStWc0xRTHI0OUVMMnpRTjQ3VHpoUWltT0FoUENKd1o2eEIxNGkyOHpMcFJIYTREeHlXTUVRVHBmbzBXOFkycTZUaXJsQkVuTzkzbnQvVW4xRVpKYjYvUW9ZcjhuZW9JRFZYNitya3IiLCJtYWMiOiI1OWFkMTI4ZjkxOWZkZWNlODZkZDlmMTVhYTljYWI5M2M3MWNmMmEwMTI0OTUyMzA0MzA1ODBjNzIxZjIyMTc3IiwidGFnIjoiIn0%3D; path=/; secure; httponly; samesite=laxalphaeurekaselectnet_session=eyJpdiI6InBURkVmeE5UaldLZDE2azhMZ1EyN2c9PSIsInZhbHVlIjoiR2VtNGdQclgvMUwxWHk3WlpTQTFvMWJHRStWc0xRTHI0OUVMMnpRTjQ3VHpoUWltT0FoUENKd1o" ] "Set-Cookie" => array:2 [ 0 => "XSRF-TOKEN=eyJpdiI6Im5mMHAwbkJ4LzlSOVZ0RXFwcy9QRHc9PSIsInZhbHVlIjoiOHlHUGkyUVN3cDlKUW5GbkRtc0xXajJYVENTa0xwZ0pEQkJQbmVYdEJaMkhpK2xwdGxuMEd0UE5MVEN4b3V1NzFNaFZJbk1NS0s5Tm9HcC96Snpzek9kNXNEQmlQNHJTbXZMT3oxR3B2SCtteTBRSU10VkpkRWsxM3p5bU55L0siLCJtYWMiOiI4MDkwYmQwNTE0NjNjMDVlNmUwNDhhNTdhMjUzMjc3YjA3NmQzNDVhNTVhODUyNTNkNTA0NWVjMGFkYmE1MzAzIiwidGFnIjoiIn0%3D; expires=Thu, 20-Feb-2025 15:03:35 GMT; path=/; secureXSRF-TOKEN=eyJpdiI6Im5mMHAwbkJ4LzlSOVZ0RXFwcy9QRHc9PSIsInZhbHVlIjoiOHlHUGkyUVN3cDlKUW5GbkRtc0xXajJYVENTa0xwZ0pEQkJQbmVYdEJaMkhpK2xwdGxuMEd0UE5MVEN4b3V1NzFNaFZJb" 1 => "alphaeurekaselectnet_session=eyJpdiI6InBURkVmeE5UaldLZDE2azhMZ1EyN2c9PSIsInZhbHVlIjoiR2VtNGdQclgvMUwxWHk3WlpTQTFvMWJHRStWc0xRTHI0OUVMMnpRTjQ3VHpoUWltT0FoUENKd1o2eEIxNGkyOHpMcFJIYTREeHlXTUVRVHBmbzBXOFkycTZUaXJsQkVuTzkzbnQvVW4xRVpKYjYvUW9ZcjhuZW9JRFZYNitya3IiLCJtYWMiOiI1OWFkMTI4ZjkxOWZkZWNlODZkZDlmMTVhYTljYWI5M2M3MWNmMmEwMTI0OTUyMzA0MzA1ODBjNzIxZjIyMTc3IiwidGFnIjoiIn0%3D; path=/; secure; httponlyalphaeurekaselectnet_session=eyJpdiI6InBURkVmeE5UaldLZDE2azhMZ1EyN2c9PSIsInZhbHVlIjoiR2VtNGdQclgvMUwxWHk3WlpTQTFvMWJHRStWc0xRTHI0OUVMMnpRTjQ3VHpoUWltT0FoUENKd1o" ] ]
        session_attributes
        0 of 0
        array:5 [ "_token" => "Vcil2jops15aEYc7rpKG0iiTVSjw9PTfKAPBDHlB" "uc_cart_id" => "448224f8f8d8f5f5288bba3902b4a813" "_previous" => array:1 [ "url" => "https://alpha.eurekaselect.com/chapter/22770" ] "_flash" => array:2 [ "old" => [] "new" => [] ] "PHPDEBUGBAR_STACK_DATA" => [] ]
        ClearShow all
        Date ↕MethodURLData
        #12025-02-18 03:03:35GET/chapter/22770112192