{"id":586,"date":"2026-05-14T15:54:59","date_gmt":"2026-05-14T14:54:59","guid":{"rendered":"https:\/\/wheat-quail-856400.hostingersite.com\/?page_id=586"},"modified":"2026-10-26T13:17:42","modified_gmt":"2026-10-26T12:17:42","slug":"fks-tetrazyklinfrei","status":"publish","type":"page","link":"https:\/\/seamlessbio.de\/de\/fbs-tet-free\/","title":{"rendered":"FBS Tet-frei"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"586\" class=\"elementor elementor-586\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-04a1e03 e-con e-atomic-element e-flexbox-base e-default-div e-f89eecf\" data-id=\"04a1e03\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"04a1e03\">\n    \t\t<div class=\"elementor-element elementor-element-c3d5962 elementor-widget elementor-widget-html\" data-id=\"c3d5962\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<section class=\"sb-fbs-tf-page\">\n  <div class=\"sb-fbs-tf-container\">\n\n    <div class=\"sb-fbs-tf-breadcrumbs\">\n      <a href=\"https:\/\/seamlessbio.de\/de\/\">Startseite<\/a>\n      <span>\/<\/span>\n      <a href=\"https:\/\/seamlessbio.de\/de\/fetales-kaelberserum\/\">F\u00f6tales K\u00e4lberserum (FKS)<\/a>\n      <span>\/<\/span>\n      <strong>FBS Tet-frei<\/strong>\n    <\/div>\n\n    <div class=\"sb-fbs-tf-hero\">\n      <div class=\"sb-fbs-tf-hero-text\">\n        <span>SeamlessBio \u2013 F\u00f6tales K\u00e4lberserum<\/span>\n        <h1>FBS Tet-frei<\/h1>\n        <p>\n          F\u00f6tales K\u00e4lberserum s\u00fcdamerikanischen Ursprungs, in Deutschland aufbereitet und qualit\u00e4tsgepr\u00fcft, auf die Abwesenheit von Tetracyclin\nund Tetracyclin-Derivaten untersucht \u2013 zur Verwendung mit den induzierbaren Expressionssystemen Tet-On \/ Tet-Off\n.\n        <\/p>\n        <div class=\"sb-fbs-tf-herobtns\">\n          <a href=\"\/about-us\/contact-imprint\/\" class=\"sb-fbs-tf-btn\">Informationen anfordern<\/a>\n          <a href=\"https:\/\/seamlessbio.de\/de\/produktkategorie\/fetales-kaelberserum\/\" class=\"sb-fbs-tf-btn-outline\">Im Shop ansehen<\/a>\n        <\/div>\n      <\/div>\n      <div class=\"sb-fbs-tf-hero-image\">\n        <img decoding=\"async\" src=\"https:\/\/seamlessbio.de\/wp-content\/uploads\/2026\/06\/fbs-tet-free-flasche.png\" alt=\"FBS Tet-freie Flasche, Herkunft: S\u00fcdamerika, verarbeitet in Deutschland, SeamlessBio\"\n          onerror=\"this.style.display='none'; this.nextElementSibling.style.display='flex';\">\n        <div class=\"sb-fbs-tf-img-fallback\" style=\"display:none;\">Platzhalter f\u00fcr Produktbild<\/div>\n      <\/div>\n    <\/div>\n<!-- BUY BOX (SEO: links to buy pages) -->\n<div class=\"sb-buy-box\" style=\"border:1px solid #cfe9e6;background:#f4fbfa;border-radius:12px;padding:22px 26px;margin:28px auto;max-width:1200px;box-sizing:border-box\">\n<h2 style=\"font-size:22px;line-height:1.3;margin:0 0 6px\">Fetales K\u00e4lberserum (FKS) ab EU-Lager kaufen<\/h2>\n<p style=\"margin:0 0 14px\">Angebot oder kostenloses Testmuster anfordern \u2013 Lager in der EU, ohne Mindestmenge, Chargenreservierung bis zu 36 Monate.<\/p>\n<ul style=\"margin:0;padding-left:20px;columns:2 300px;column-gap:32px\">\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/fks-tetrazyklinfrei-tet-free\/\" style=\"font-weight:700\">Tetrazyklinfreies FKS (Tet-free)<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/fetales-kaelberserum-fks-suedamerika\/\">Fetales K\u00e4lberserum \u2013 Herkunft S\u00fcdamerika<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/fetales-kaelberserum-fks-usa\/\">Fetales K\u00e4lberserum \u2013 Herkunft USA<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/fetales-kaelberserum-fks-australien\/\">Fetales K\u00e4lberserum \u2013 Herkunft Australien<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/fks-low-igg\/\">FKS Ultra Low IgG (&lt;5 \u00b5g\/ml)<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/fks-hitzeinaktiviert-usa-australien-suedamerika\/\">FKS hitzeinaktiviert<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/fks-es-zell-getestet-suedamerika\/\">ES-Zell-getestetes FKS<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/fks-low-endotoxin-suedamerika\/\">FKS Low Endotoxin (\u22645 EU\/ml)<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/fks-maennlich-testosteron-definiert\/\">FKS m\u00e4nnlich \u2013 Testosteron-definiert<\/a><\/li>\n\n<\/ul>\n<p style=\"margin:14px 0 0\"><a href=\"https:\/\/seamlessbio.de\/de\/request-quote\/\" style=\"font-weight:600\">Angebot anfordern \u2192<\/a><\/p>\n<\/div>\n<!-- \/BUY BOX -->\n\n\n    <div class=\"sb-fbs-tf-grid\">\n\n      <div class=\"sb-fbs-tf-card\">\n        <span>01<\/span>\n        <h3>Tetracyclin-frei<\/h3>\n        <p>\n          Auf das Fehlen von Tetracyclin und Tetracyclin-Derivaten\n\u00fcberpr\u00fcft, die die induzierbare Expression beeintr\u00e4chtigen k\u00f6nnten.\n        <\/p>\n      <\/div>\n\n      <div class=\"sb-fbs-tf-card\">\n        <span>02<\/span>\n        <h3>Tet-On-\/Tet-Off-kompatibel<\/h3>\n        <p>\n          Geeignet f\u00fcr Zelllinien und Assays, die auf Tetracyclin-induzierbaren\nGenexpressionssystemen basieren.\n        <\/p>\n      <\/div>\n\n      <div class=\"sb-fbs-tf-card\">\n        <span>03<\/span>\n        <h3>Stapeldokumentation<\/h3>\n        <p>\n          Bei jeder Lieferung liegen die CoA-, CoO- und TSE\/BSE-Unterlagen bei.\n        <\/p>\n      <\/div>\n\n      <div class=\"sb-fbs-tf-card\">\n        <span>04<\/span>\n        <h3>Lieferung unter Einhaltung der K\u00fchlkette<\/h3>\n        <p>\n          Temperaturgef\u00fchrte Lieferung in die gesamte EU und nach Gro\u00dfbritannien, ohne\nMindestbestellmenge.\n        <\/p>\n      <\/div>\n\n    <\/div>\n\n    <div class=\"sb-fbs-tf-content\">\n\n      <div class=\"sb-fbs-tf-text\">\n        <h2>Warum Tet-freies Serum f\u00fcr die induzierbare Expression wichtig ist<\/h2>\n        <p>\n          Herk\u00f6mmliches f\u00f6tales K\u00e4lberserum kann Spuren von\nTetracyclin oder verwandten Verbindungen enthalten, die aus der veterin\u00e4rmedizinischen Anwendung\nin den Spenderherden stammen. F\u00fcr die meisten Anwendungen in der Zellkultur ist dies\nirrelevant \u2013 bei Experimenten, die auf Tetracyclin-induzierbaren\n(Tet-On\/Tet-Off) Expressionssystemen basieren, kann jedoch bereits eine Spurenverunreinigung\nzu einer unbeabsichtigten, geringf\u00fcgigen Aktivierung oder Leckage des\ninduzierbaren Promotors f\u00fchren und die Versuchsergebnisse verf\u00e4lschen.\n        <\/p>\n        <p>\n          SeamlessBio FBS Tet-Free wird gezielt auf das\n Fehlen von Tetracyclin und dessen Derivaten gepr\u00fcft und bietet somit eine saubere\n Ausgangsbasis f\u00fcr Experimente, bei denen die Kontrolle des induzierbaren Systems\n f\u00fcr die Datenauswertung von entscheidender Bedeutung ist.\n        <\/p>\n      <\/div>\n\n      <div class=\"sb-fbs-tf-list\">\n        <h3>Typische Anwendungsbereiche<\/h3>\n        <ul>\n          <li>Tet-On-\/Tet-Off-induzierbare Expressionssysteme<\/li>\n          <li>Untersuchungen zur bedingten Genexpression<\/li>\n          <li>Induzierbare Knockdown-\/Knockout-Systeme<\/li>\n          <li>Entwicklung stabiler Zelllinien mit induzierbaren Konstrukten<\/li>\n          <li>Molekularbiologische Forschung im akademischen und pharmazeutischen Bereich<\/li>\n        <\/ul>\n      <\/div>\n\n    <\/div>\n\n    <div class=\"sb-fbs-tf-details\">\n      <div>\n        <h3>Produktinformationen<\/h3>\n        <ul>\n          <li>Produkttyp: F\u00f6tales K\u00e4lberserum<\/li>\n          <li>Klasse: Tet-frei<\/li>\n          <li>Screening: Tetracyclin und Derivate<\/li>\n          <li>Dokumentation: CoA \/ CoO \/ TSE-BSE-Erkl\u00e4rung<\/li>\n          <li>Versand: Lieferung unter Einhaltung der K\u00fchlkette<\/li>\n          <li>Herkunft: EU<\/li>\n        <\/ul>\n      <\/div>\n\n      <div>\n        <h3>Auf Anfrage erh\u00e4ltlich<\/h3>\n        <ul>\n          <li>Chargenspezifisch CoA<\/li>\n          <li>Testproben<\/li>\n          <li>Herkunftsangaben<\/li>\n          <li>Sammelreservierung<\/li>\n          <li>Optionen f\u00fcr Gro\u00dfbestellungen<\/li>\n        <\/ul>\n      <\/div>\n    <\/div>\n\n    <div class=\"sb-fbs-tf-related\">\n      <h3>Verwandte FBS-Noten und Ressourcen<\/h3>\n      <div class=\"sb-fbs-tf-related-grid\">\n        <a href=\"https:\/\/seamlessbio.de\/de\/fks-low-endotoxin\/\">FBS Low Endotoxin<\/a>\n        <a href=\"https:\/\/seamlessbio.de\/de\/fks-es-zell-getestet\/\">FBS ES-Zell-getestet<\/a>\n        <a href=\"https:\/\/seamlessbio.de\/de\/fks-hitzeinaktiviert\/\">FBS hitzeinaktiviert<\/a>\n        <a href=\"https:\/\/seamlessbio.de\/de\/fetales-kaelberserum\/\">Alle FBS-Stufen \u2013 \u00dcberblick<\/a>\n      <\/div>\n    <\/div>\n\n    <div class=\"sb-fbs-tf-cta\">\n      <h2>Ben\u00f6tigen Sie Tet-freies FBS f\u00fcr Ihr Expressionssystem?<\/h2>\n      <p>\n        Wenden Sie sich an unser Team, um Informationen zur Verf\u00fcgbarkeit der Chargen, zur Dokumentation und zu den Lieferoptionen\nf\u00fcr FBS Tet-Free zu erhalten.\n      <\/p>\n      <a href=\"\/about-us\/contact-imprint\/\">Kontakt<\/a>\n    <\/div>\n\n  <\/div>\n<\/section>\n\n<style>\n.sb-fbs-tf-page,\n.sb-fbs-tf-page *,\n.sb-fbs-tf-page *::before,\n.sb-fbs-tf-page *::after {\n  box-sizing: border-box;\n}\n\n.sb-fbs-tf-page {\n  background: #ffffff;\n  padding: 70px 40px 90px;\n  font-family: Arial, sans-serif;\n  color: #202020;\n}\n\n.sb-fbs-tf-container {\n  max-width: 1400px;\n  width: 100%;\n  margin: 0 auto;\n}\n\n.sb-fbs-tf-breadcrumbs {\n  display: flex;\n  flex-wrap: wrap;\n  gap: 8px;\n  margin: 0 0 24px;\n  color: #777;\n  font-size: 14px;\n  word-break: break-word;\n}\n\n.sb-fbs-tf-breadcrumbs a {\n  color: #18b7b2 !important;\n  text-decoration: none !important;\n  font-weight: 700;\n}\n\n.sb-fbs-tf-breadcrumbs strong {\n  color: #111;\n  font-weight: 800;\n}\n\n.sb-fbs-tf-hero {\n  display: grid;\n  grid-template-columns: 1.15fr 0.85fr;\n  align-items: center;\n  gap: 40px;\n  padding: 64px 56px;\n  margin-bottom: 48px;\n  border-radius: 30px;\n  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.sb-fbs-tf-cta h2 {\n    font-size: 26px;\n  }\n}\n<\/style>\t\t\t\t<\/div>\n\t\t\n<\/div>\n\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Home \/ Fetal Bovine Serum \/ FBS Tet-Free SeamlessBio \u2014 Fetal Bovine Serum FBS Tet-Free South American-origin fetal bovine serum, processed and quality-controlled in Germany, screened to be free of tetracycline and tetracycline derivatives \u2014 for use with Tet-On \/ Tet-Off inducible expression systems. Request Information View in Shop Product image placeholder Buy fetal bovine [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","footnotes":""},"class_list":["post-586","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Tet-Free FBS \u2013 Tetracycline-Free Fetal Bovine Serum | EU Supplier<\/title>\n<meta name=\"description\" content=\"Tetracycline-free FBS for Tet-On\/Tet-Off inducible expression systems, processed in Germany. Request a quote.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/seamlessbio.de\/de\/fks-tetrazyklinfrei\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tet-Free FBS \u2013 Tetracycline-Free Fetal Bovine Serum | EU Supplier\" \/>\n<meta property=\"og:description\" content=\"Tetracycline-free FBS for Tet-On\/Tet-Off inducible expression systems, processed in Germany. 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