{"id":6822,"date":"2026-07-05T12:14:28","date_gmt":"2026-07-05T10:14:28","guid":{"rendered":"https:\/\/zencellowl.com\/?page_id=6822"},"modified":"2026-07-05T12:17:03","modified_gmt":"2026-07-05T10:17:03","slug":"zebrafish-larvae-toxicity-monitoring","status":"publish","type":"page","link":"https:\/\/zencellowl.com\/zh\/zebrafish-larvae-toxicity-monitoring\/","title":{"rendered":"Zebrafish Larvae Toxicity Monitoring"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"6822\" class=\"elementor elementor-6822\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bc05c59 e-flex e-con-boxed e-con e-parent\" data-id=\"bc05c59\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4d2a9ba elementor-widget elementor-widget-html\" data-id=\"4d2a9ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Montserrat:wght@400;500;600;700;800&display=swap\" rel=\"stylesheet\">\n<style>\n.zf * { box-sizing: border-box; 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}\n\n\/* RELATED TOX *\/\n.zf-related { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-top: 40px; }\n.zf-rel-card { border: 1.5px solid var(--border); border-radius: 10px; padding: 22px; background: var(--white); text-decoration: none !important; display: block; transition: all .25s; }\n.zf-rel-card:hover { border-color: var(--teal); box-shadow: 0 6px 20px rgba(58,174,160,0.1); transform: translateY(-2px); }\n.zf-rel-tag { font-size: 10px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--teal); margin-bottom: 8px; }\n.zf-rel-card h4 { font-size: 14px; font-weight: 700; color: var(--navy); margin-bottom: 6px; line-height: 1.4; }\n.zf-rel-card p  { font-size: 13px; color: var(--gray); line-height: 1.6; }\n\n\/* FAQ *\/\n.zf-faq { margin-top: 40px; }\n.zf-faq details { border-bottom: 1px solid var(--border); }\n.zf-faq summary { padding: 18px 4px; font-size: 15px; font-weight: 600; color: var(--navy); cursor: pointer; list-style: none; 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}\n}\n@media(max-width:600px) {\n  .zf-grid3 { grid-template-columns: 1fr; }\n  .zf-related { grid-template-columns: 1fr; }\n  .zf-btn-ghost { margin-left: 0; margin-top: 10px; display: inline-block; }\n  .zf-xyz { flex-direction: column; }\n}\n<\/style>\n\n<div class=\"zf\">\n\n<!-- HERO -->\n<section class=\"zf-hero\">\n  <div class=\"zf-eyebrow\">zenCELL owl \u00b7 Zebrafish Applications<\/div>\n  <h1>Zebrafish Larvae Toxicity Monitoring \u2014 <span>Continuous, Brightfield, Unattended<\/span><\/h1>\n  <p class=\"zf-hero-lead\">Monitor developmental toxicity in zebrafish larvae continuously over time \u2014 morphology changes, survival, behavioral endpoints \u2014 brightfield time-lapse inside your incubator. 24 wells simultaneously. No fluorescent labels required.<\/p>\n  <a href=\"https:\/\/zencellowl.com\/live-remotedemo\/\" class=\"zf-btn\">Book Free Demo<\/a>\n  <a href=\"https:\/\/zencellowl.com\/brightfield-live-cell-imaging\/\" class=\"zf-btn zf-btn-ghost\">All Brightfield Applications \u2192<\/a>\n<\/section>\n\n<!-- STATS -->\n<div class=\"zf-stats\">\n  <div class=\"zf-stat\"><div class=\"n\">24<\/div><div class=\"l\">Wells simultaneously<\/div><\/div>\n  <div class=\"zf-stat\"><div class=\"n\">5 min<\/div><div class=\"l\">Minimum imaging interval<\/div><\/div>\n  <div class=\"zf-stat\"><div class=\"n\">72h+<\/div><div class=\"l\">Continuous monitoring<\/div><\/div>\n  <div class=\"zf-stat\"><div class=\"n\">0<\/div><div class=\"l\">Fluorescent labels needed<\/div><\/div>\n  <div class=\"zf-stat\"><div class=\"n\">\u20ac14k<\/div><div class=\"l\">One-time \u00b7 no annual fee<\/div><\/div>\n<\/div>\n\n<!-- WHY ZEBRAFISH -->\n<div style=\"background:var(--off);\">\n  <div class=\"zf-w\">\n    <div class=\"zf-label\">Why Zebrafish for Toxicity Testing?<\/div>\n    <h2 class=\"zf-h2\">The Vertebrate Model <span>Between Cell Culture and Rodent<\/span><\/h2>\n    <p class=\"zf-lead\">Zebrafish larvae bridge the gap between in vitro cell assays and expensive rodent models. Transparent, rapidly developing, and genetically 70% homologous to humans \u2014 they enable in vivo toxicity readouts at high throughput and low cost. No ethical approval required before independent feeding (before 5 dpf in most jurisdictions).<\/p>\n    <div class=\"zf-grid3\">\n      <div class=\"zf-card\">\n        <div class=\"zf-card-icon\">\ud83d\udc1f<\/div>\n        <h3>Transparent & visible<\/h3>\n        <p>Zebrafish larvae are optically transparent in early life stages \u2014 internal organs, heart, vasculature and morphological changes all visible in brightfield without staining.<\/p>\n      <\/div>\n      <div class=\"zf-card\">\n        <div class=\"zf-card-icon\">\u26a1<\/div>\n        <h3>Fast development<\/h3>\n        <p>Key developmental milestones occur within 24\u2013120 hours post-fertilization. Drug effects on development, organ formation, and survival are observable within days, not weeks.<\/p>\n      <\/div>\n      <div class=\"zf-card\">\n        <div class=\"zf-card-icon\">\ud83e\uddec<\/div>\n        <h3>Vertebrate toxicology<\/h3>\n        <p>70% genetic homology with humans. Drug-induced developmental toxicity, cardiotoxicity, hepatotoxicity and neurotoxicity \u2014 all detectable in larval zebrafish at relevant concentrations.<\/p>\n      <\/div>\n      <div class=\"zf-card\">\n        <div class=\"zf-card-icon\">\ud83d\udcca<\/div>\n        <h3>High-throughput compatible<\/h3>\n        <p>One larva per well in 24-well plates. 24 concentrations or conditions screened simultaneously. Continuous time-lapse captures the full kinetic toxicity profile \u2014 not just the endpoint.<\/p>\n      <\/div>\n      <div class=\"zf-card\">\n        <div class=\"zf-card-icon\">\ud83d\udcb0<\/div>\n        <h3>Low cost per data point<\/h3>\n        <p>Compared to rodent studies: faster, cheaper, higher throughput, and ethically preferable. Zebrafish larval assays are increasingly accepted in early-phase drug safety screening.<\/p>\n      <\/div>\n      <div class=\"zf-card\">\n        <div class=\"zf-card-icon\">\ud83d\udd2c<\/div>\n        <h3>Label-free brightfield<\/h3>\n        <p>Morphology changes, survival, heart rate, and locomotion \u2014 all measurable in brightfield. No dyes required. No phototoxicity. Monitor the same larvae continuously for 72+ hours.<\/p>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n<!-- WHAT YOU MEASURE -->\n<div class=\"zf-w\">\n  <div class=\"zf-label\">Brightfield Toxicity Endpoints<\/div>\n  <h2 class=\"zf-h2\">What You Can Measure <span>Without Fluorescence<\/span><\/h2>\n  <p class=\"zf-lead\">The following endpoints are measurable by brightfield time-lapse with zenCELL owl \u2014 no fluorescent labels, no staining, no protocol modification beyond standard zebrafish husbandry.<\/p>\n  <div class=\"zf-metrics\">\n    <div class=\"zf-metric\">\n      <div class=\"zf-metric-num\">1<\/div>\n      <div>\n        <h4>Survival & mortality over time<\/h4>\n        <p>Continuous monitoring captures the exact timepoint of lethality \u2014 not just a 24h or 48h endpoint count. LC50 kinetics from a single experiment across 24 concentrations.<\/p>\n      <\/div>\n    <\/div>\n    <div class=\"zf-metric\">\n      <div class=\"zf-metric-num\">2<\/div>\n      <div>\n        <h4>Morphological abnormalities<\/h4>\n        <p>Body axis defects, pericardial edema, yolk sac absorption, tail malformations \u2014 visible in brightfield. Captured automatically at every timepoint without handling the larvae.<\/p>\n      <\/div>\n    <\/div>\n    <div class=\"zf-metric\">\n      <div class=\"zf-metric-num\">3<\/div>\n      <div>\n        <h4>Heart rate & cardiac toxicity<\/h4>\n        <p>Rhythmic cardiac contractions are visible as motion in brightfield time-lapse. Bradycardia, tachycardia, and arrhythmia detectable by frame-to-frame motion analysis.<\/p>\n      <\/div>\n    <\/div>\n    <div class=\"zf-metric\">\n      <div class=\"zf-metric-num\">4<\/div>\n      <div>\n        <h4>Hatching success & timing<\/h4>\n        <p>Delayed or failed hatching is a sensitive developmental toxicity endpoint. Continuous imaging captures hatching time per well \u2014 not reliant on manual observation.<\/p>\n      <\/div>\n    <\/div>\n    <div class=\"zf-metric\">\n      <div class=\"zf-metric-num\">5<\/div>\n      <div>\n        <h4>Locomotor activity changes<\/h4>\n        <p>Hypo- or hyperactivity induced by neurotoxic compounds visible as movement in time-lapse brightfield. Quantifiable as frame-to-frame pixel displacement over time.<\/p>\n      <\/div>\n    <\/div>\n    <div class=\"zf-metric\">\n      <div class=\"zf-metric-num\">6<\/div>\n      <div>\n        <h4>Body length & growth inhibition<\/h4>\n        <p>Growth retardation is a dose-dependent toxicity endpoint. Body length measured from brightfield images at each timepoint \u2014 no anaesthesia, no handling required.<\/p>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n<!-- WORKFLOW -->\n<div style=\"background:var(--off);\">\n  <div class=\"zf-w\">\n    <div class=\"zf-label\">Step-by-Step Protocol<\/div>\n    <h2 class=\"zf-h2\">Zebrafish Larval Toxicity Assay \u2014 <span>Continuous Time-Lapse<\/span><\/h2>\n    <p class=\"zf-lead\">Compatible with standard 24-well plates. Works alongside your existing zebrafish facility incubator. No system modifications required.<\/p>\n    <div class=\"zf-steps\">\n      <div class=\"zf-step\">\n        <div class=\"zf-step-num\">1<\/div>\n        <div>\n          <h4>Embryo collection & dechorionation<\/h4>\n          <p>Collect zebrafish embryos at the desired developmental stage (typically 4\u201324 hpf). Dechorionate if required for your assay. Transfer one embryo or larva per well into a 24-well plate with E3 medium.<\/p>\n          <span class=\"zf-badge\">Standard zebrafish husbandry<\/span>\n        <\/div>\n      <\/div>\n      <div class=\"zf-step\">\n        <div class=\"zf-step-num\">2<\/div>\n        <div>\n          <h4>Compound addition<\/h4>\n          <p>Add test compound, control, or vehicle to each well. Recommended: 500 \u00b5L E3 medium per well. DMSO concentration \u22640.1% for solvent controls. 24 conditions in one plate.<\/p>\n          <span class=\"zf-badge\">24 concentrations simultaneously<\/span>\n        <\/div>\n      <\/div>\n      <div class=\"zf-step\">\n        <div class=\"zf-step-num\">3<\/div>\n        <div>\n          <h4>Place plate on zenCELL owl inside incubator<\/h4>\n          <p>Place the 24-well plate directly on zenCELL owl inside your zebrafish incubator (28\u00b0C). Connect via USB-C to your PC. No temperature disruption \u2014 the device operates inside the incubator.<\/p>\n          <span class=\"zf-badge\">\u23f1 Setup &lt;5 minutes<\/span>\n        <\/div>\n      <\/div>\n      <div class=\"zf-step\">\n        <div class=\"zf-step-num\">4<\/div>\n        <div>\n          <h4>Configure imaging & start<\/h4>\n          <p>Set imaging interval (5\u201360 minutes recommended for zebrafish larvae), experiment duration (24\u2013120 hours), and select wells. AI autofocus calibrates per well. Press start \u2014 system runs unattended.<\/p>\n          <span class=\"zf-badge\">Fully automated \u00b7 no manual timepoints<\/span>\n        <\/div>\n      <\/div>\n      <div class=\"zf-step\">\n        <div class=\"zf-step-num\">5<\/div>\n        <div>\n          <h4>Monitor remotely & export data<\/h4>\n          <p>Check brightfield images from any PC at any time. After experiment: export AVI time-lapse video per well, PNG image stack, and CSV data. Compatible with ImageJ for morphological quantification.<\/p>\n          <span class=\"zf-badge\">Export: AVI \u00b7 PNG \u00b7 CSV \u00b7 ImageJ<\/span>\n        <\/div>\n      <\/div>\n    <\/div>\n    <div class=\"zf-highlight\">\n      <p>zenCELL owl captures <strong>the full kinetic toxicity profile<\/strong> \u2014 not just T24 or T48 endpoints. Onset of cardiac toxicity at T6, hatching at T36, behavioral changes at T72 \u2014 all captured automatically in a single unattended experiment.<\/p>\n      <div class=\"zf-hl-stat\"><div class=\"n\">24<\/div><div class=\"u\">Conditions \u00b7 one plate<\/div><\/div>\n      <div class=\"zf-hl-stat\"><div class=\"n\">120h<\/div><div class=\"u\">Max. monitoring duration<\/div><\/div>\n      <div class=\"zf-hl-stat\"><div class=\"n\">0<\/div><div class=\"u\">Manual timepoints<\/div><\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n<!-- XYZ STAGE ADVANCED -->\n<div class=\"zf-w\">\n  <div class=\"zf-label\">Advanced Capability<\/div>\n  <h2 class=\"zf-h2\">Full Zebrafish Imaging with <span>XYZ Stage Add-on<\/span><\/h2>\n  <div class=\"zf-xyz\">\n    <div class=\"zf-xyz-icon\">\ud83d\udd2d<\/div>\n    <div>\n      <h3>Stitch & Track Full Zebrafish Larvae \u2014 with the zenCELL owl XYZ SCAN Stage<\/h3>\n      <p>The standard zenCELL owl FOV (1.08 mm\u00b2) covers early-stage embryos and behavioral monitoring of larvae. For full-body imaging of larger larvae (3\u20135 dpf, 3\u20134 mm body length), the optional <strong>zenCELL owl XYZ SCAN Stage Add-on<\/strong> enables automatic image stitching \u2014 multiple adjacent FOVs are captured and merged into a single full-body brightfield image per larva per timepoint.<\/p>\n      <p>This enables full morphological quantification \u2014 body axis length, organ area, yolk sac absorption \u2014 across all 24 wells, continuously, without handling the larvae. Contact us for current XYZ stage specifications and zebrafish alignment plate compatibility.<\/p>\n      <div class=\"zf-xyz-chips\">\n        <span class=\"zf-xyz-chip\">Full-body image stitching<\/span>\n        <span class=\"zf-xyz-chip\">96-well compatible<\/span>\n        <span class=\"zf-xyz-chip\">Automated multi-position<\/span>\n        <span class=\"zf-xyz-chip\">Body length quantification<\/span>\n        <span class=\"zf-xyz-chip\">Organ area analysis<\/span>\n        <span class=\"zf-xyz-chip\">Contact us for specs<\/span>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\n     VERGLEICHSTABELLE: zenCELL owl vs. VAST BioImager vs. DanioVision vs. ACQUIFER\n     Einf\u00fcgen VOR dem FAQ-Block auf \/zebrafish-larvae-toxicity-monitoring\/\n\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 -->\n\n<div style=\"background:#fff;\">\n  <div class=\"zf-w\">\n    <div class=\"zf-label\">System Comparison<\/div>\n    <h2 class=\"zf-h2\">zenCELL owl vs. <span>Known Zebrafish Imaging Systems<\/span><\/h2>\n    <p class=\"zf-lead\">Four systems are commonly used for zebrafish imaging and toxicity screening. Each covers a different use case \u2014 here is where they differ and when zenCELL owl is the right choice.<\/p>\n\n    <!-- TABLE -->\n    <div style=\"overflow-x:auto; border-radius:12px; box-shadow:0 4px 20px rgba(0,0,0,0.06); margin-top:32px;\">\n      <table style=\"width:100%; border-collapse:collapse; font-size:13px; min-width:700px;\">\n        <thead>\n          <tr>\n            <th style=\"padding:14px 16px; font-size:11px; text-transform:uppercase; letter-spacing:.5px; font-weight:700; text-align:left; background:#1a2e3a; color:#fff; border-radius:12px 0 0 0;\">Feature<\/th>\n            <th style=\"padding:14px 16px; font-size:11px; text-transform:uppercase; letter-spacing:.5px; font-weight:700; text-align:center; background:#3aaea0; color:#fff;\">zenCELL owl<\/th>\n            <th style=\"padding:14px 16px; font-size:11px; text-transform:uppercase; letter-spacing:.5px; font-weight:700; text-align:center; background:#2d3748; color:rgba(255,255,255,0.75);\">VAST BioImager<\/th>\n            <th style=\"padding:14px 16px; font-size:11px; text-transform:uppercase; letter-spacing:.5px; font-weight:700; text-align:center; background:#2d3748; color:rgba(255,255,255,0.75);\">DanioVision<\/th>\n            <th style=\"padding:14px 16px; font-size:11px; text-transform:uppercase; letter-spacing:.5px; font-weight:700; text-align:center; background:#2d3748; color:rgba(255,255,255,0.75); border-radius:0 12px 0 0;\">ACQUIFER HIVE<\/th>\n          <\/tr>\n        <\/thead>\n        <tbody>\n\n          <tr style=\"background:#f4f8f8;\">\n            <td style=\"padding:12px 16px; font-weight:600; color:#1a2e3a; border-bottom:1px solid #f0f0f0;\">Primary use case<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:700;\">Continuous time-lapse toxicity monitoring \u2014 kinetic, 24-well, unattended<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">High-content morphological imaging \u2014 single timepoint, oriented larvae<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">Behavioral locomotion tracking \u2014 activity, light\/dark response<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">Automated fluorescence HCS \u2014 plate-based, multi-channel<\/td>\n          <\/tr>\n\n          <tr>\n            <td style=\"padding:12px 16px; font-weight:600; color:#1a2e3a; border-bottom:1px solid #f0f0f0;\">Imaging modality<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:700;\">\u2713 Brightfield \u00b7 label-free<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">Brightfield + fluorescence<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">Brightfield (IR video)<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">Brightfield + fluorescence (multi-channel)<\/td>\n          <\/tr>\n\n          <tr style=\"background:#f4f8f8;\">\n            <td style=\"padding:12px 16px; font-weight:600; color:#1a2e3a; border-bottom:1px solid #f0f0f0;\">Continuous time-lapse<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:700;\">\u2713 Every 5 min \u00b7 72h+ unattended<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#c0392b;\">\u2717 Single timepoint per load<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:600;\">\u2713 Video tracking \u00b7 short intervals<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:600;\">\u2713 Multi-timepoint possible<\/td>\n          <\/tr>\n\n          <tr>\n            <td style=\"padding:12px 16px; font-weight:600; color:#1a2e3a; border-bottom:1px solid #f0f0f0;\">Inside incubator<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:700;\">\u2713 Any standard incubator \u00b7 28\u00b0C<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#c0392b;\">\u2717 Benchtop \u2014 larvae removed<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#c0392b;\">\u2717 Benchtop only<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">Plate-based \u00b7 environmental control<\/td>\n          <\/tr>\n\n          <tr style=\"background:#f4f8f8;\">\n            <td style=\"padding:12px 16px; font-weight:600; color:#1a2e3a; border-bottom:1px solid #f0f0f0;\">Larva handling required<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:700;\">\u2713 None \u2014 plate stays in incubator<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#c0392b;\">\u2717 Capillary loading per larva<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">Plate transfer per timepoint<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">Automated plate handling<\/td>\n          <\/tr>\n\n          <tr>\n            <td style=\"padding:12px 16px; font-weight:600; color:#1a2e3a; border-bottom:1px solid #f0f0f0;\">Anaesthesia required<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:700;\">\u2713 No \u2014 larvae free-swimming<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#c0392b;\">\u2717 Yes \u2014 for orientation<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:600;\">\u2713 No<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">Depends on assay<\/td>\n          <\/tr>\n\n          <tr style=\"background:#f4f8f8;\">\n            <td style=\"padding:12px 16px; font-weight:600; color:#1a2e3a; border-bottom:1px solid #f0f0f0;\">Wells simultaneously<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:700;\">\u2713 24 (96 with XYZ stage)<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">Sequential per larva<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:600;\">\u2713 Up to 96<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:600;\">\u2713 Full plate<\/td>\n          <\/tr>\n\n          <tr>\n            <td style=\"padding:12px 16px; font-weight:600; color:#1a2e3a; border-bottom:1px solid #f0f0f0;\">Kinetic toxicity profile<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:700;\">\u2713 Full \u2014 every 5 min over 72h+<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#c0392b;\">\u2717 Endpoint only<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:600;\">\u2713 Behavioral kinetics<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">Multi-timepoint \u00b7 not continuous<\/td>\n          <\/tr>\n\n          <tr style=\"background:#f4f8f8;\">\n            <td style=\"padding:12px 16px; font-weight:600; color:#1a2e3a; border-bottom:1px solid #f0f0f0;\">Fluorescence channels<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">No \u2014 brightfield only<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:600;\">\u2713 Yes \u2014 multi-channel<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">No<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:600;\">\u2713 Yes \u2014 primary strength<\/td>\n          <\/tr>\n\n          <tr>\n            <td style=\"padding:12px 16px; font-weight:600; color:#1a2e3a; border-bottom:1px solid #f0f0f0;\">Price range<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#3aaea0; font-weight:700;\">\u2713 from \u20ac14,000 \u00b7 no annual fee<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">\u20ac80,000\u2013150,000+<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">\u20ac30,000\u201360,000<\/td>\n            <td style=\"padding:12px 16px; text-align:center; border-bottom:1px solid #f0f0f0; color:#6b7c85;\">\u20ac100,000\u2013200,000+<\/td>\n          <\/tr>\n\n          <tr style=\"background:#f4f8f8;\">\n            <td style=\"padding:12px 16px; font-weight:600; color:#1a2e3a;\">Best for<\/td>\n            <td style=\"padding:12px 16px; text-align:center; color:#3aaea0; font-weight:700;\">Kinetic tox monitoring \u00b7 survival \u00b7 morphology over time \u00b7 cardiac \u00b7 behavioral<\/td>\n            <td style=\"padding:12px 16px; text-align:center; color:#6b7c85;\">High-content morphology \u00b7 organ imaging \u00b7 fluorescent transgenic lines<\/td>\n            <td style=\"padding:12px 16px; text-align:center; color:#6b7c85;\">Behavioral screening \u00b7 locomotion \u00b7 light\/dark response \u00b7 neurotoxicity<\/td>\n            <td style=\"padding:12px 16px; text-align:center; color:#6b7c85;\">Fluorescence HCS \u00b7 multi-channel \u00b7 automated plate handling<\/td>\n          <\/tr>\n\n        <\/tbody>\n      <\/table>\n    <\/div>\n\n    <!-- NOTE -->\n    <div style=\"background:#e8f5f4; border-left:4px solid #3aaea0; border-radius:0 8px 8px 0; padding:18px 22px; margin-top:24px;\">\n      <strong style=\"color:#2d8f83; display:block; font-size:14px; margin-bottom:4px;\">When zenCELL owl is the right choice for zebrafish<\/strong>\n      <p style=\"font-size:14px; color:#1a2e3a; line-height:1.7;\">If your assay requires <strong>continuous kinetic monitoring<\/strong> of survival, morphology, cardiac endpoints, or behavioral changes over 24\u2013120 hours \u2014 without anaesthesia, without handling, and without removing larvae from the incubator \u2014 zenCELL owl covers this at a fraction of the cost of VAST or ACQUIFER. For fluorescence-based organ imaging or high-content morphological screening of oriented larvae, VAST BioImager or ACQUIFER are the established tools.<\/p>\n    <\/div>\n\n  <\/div>\n<\/div>\n\n\n<!-- RELATED TOX APPLICATIONS -->\n<div style=\"background:var(--off);\">\n  <div class=\"zf-w\">\n    <div class=\"zf-label\">Related Toxicity Applications<\/div>\n    <h2 class=\"zf-h2\">Complete Toxicity Testing Suite \u2014 <span>Brightfield<\/span><\/h2>\n    <p class=\"zf-lead\">zenCELL owl covers the full spectrum of brightfield toxicity assays \u2014 from in vitro cell-based assays to in vivo zebrafish larval monitoring.<\/p>\n    <div class=\"zf-related\">\n      <a href=\"https:\/\/zencellowl.com\/cytotoxicity-assay\/\" class=\"zf-rel-card\">\n        <div class=\"zf-rel-tag\">In Vitro \u00b7 Cell-Based<\/div>\n        <h4>Cytotoxicity Assay \u2014 Continuous Brightfield<\/h4>\n        <p>Drug-induced cell loss monitored as confluency over time. 24 concentrations in parallel. IC50 kinetics without endpoint staining.<\/p>\n      <\/a>\n      <a href=\"https:\/\/zencellowl.com\/cell-intoxication-assay\/\" class=\"zf-rel-card\">\n        <div class=\"zf-rel-tag\">In Vitro \u00b7 Morphology<\/div>\n        <h4>Cell Intoxication Assay \u2014 Real-Time<\/h4>\n        <p>Toxin-induced morphology changes \u2014 rounding, blebbing, detachment \u2014 quantified as confluency loss over time. Label-free.<\/p>\n      <\/a>\n      <a href=\"https:\/\/zencellowl.com\/organoid-live-cell-imaging\/\" class=\"zf-rel-card\">\n        <div class=\"zf-rel-tag\">3D Models<\/div>\n        <h4>Organoid Drug Response Monitoring<\/h4>\n        <p>Patient-derived organoid drug screening \u2014 size reduction, morphology shifts, growth arrest. Full kinetics, not just an endpoint.<\/p>\n      <\/a>\n    <\/div>\n  <\/div>\n<\/div>\n\n<!-- FAQ -->\n<div class=\"zf-w\">\n  <div class=\"zf-label\">FAQ<\/div>\n  <h2 class=\"zf-h2\">Zebrafish Brightfield Imaging \u2014 <span>Common Questions<\/span><\/h2>\n  <div class=\"zf-faq\">\n    <details open>\n      <summary>What developmental stages of zebrafish are compatible with zenCELL owl?<\/summary>\n      <p>Early embryos (4\u201348 hpf) fit comfortably within the standard 1.08 mm\u00b2 FOV. For larvae at 3\u20135 dpf (3\u20134 mm body length), the XYZ SCAN stage add-on enables image stitching for full-body coverage. Contact us for current specifications and recommendations for your specific experimental stage.<\/p>\n    <\/details>\n    <details>\n      <summary>Do I need fluorescence for zebrafish toxicity screening?<\/summary>\n      <p>For the brightfield endpoints described on this page \u2014 survival, morphology, cardiac motion, hatching, locomotion, body length \u2014 no fluorescence is required. For fluorescence-based endpoints such as GFP reporter lines, fluorescent viability dyes, or organ-specific markers, a fluorescence system is required. zenCELL owl covers the brightfield-compatible subset of zebrafish toxicity assays.<\/p>\n    <\/details>\n    <details>\n      <summary>Can I image zebrafish inside a standard incubator with zenCELL owl?<\/summary>\n      <p>Yes. zenCELL owl is designed to operate inside any standard CO\u2082 incubator. Zebrafish larvae are typically maintained at 28\u00b0C \u2014 within the operating range of zenCELL owl. The device connects via USB-C to a PC outside the incubator. No CO\u2082 is required for zebrafish E3 medium, so standard laboratory incubators (without CO\u2082) work equally well.<\/p>\n    <\/details>\n    <details>\n      <summary>How does brightfield zebrafish monitoring compare to manual observation?<\/summary>\n      <p>Manual zebrafish toxicity assays require removing plates from the incubator at each timepoint, observing each well under a stereomicroscope, and recording endpoints manually. This is time-consuming, introduces temperature variation, and limits temporal resolution to 2\u20134 timepoints per experiment. zenCELL owl captures images every 5\u201360 minutes across all 24 wells simultaneously \u2014 unattended, inside the incubator, for the full duration of the experiment.<\/p>\n    <\/details>\n    <details>\n      <summary>Is zenCELL owl validated for zebrafish imaging?<\/summary>\n      <p>Zebrafish larval monitoring with zenCELL owl is an emerging application based on the validated brightfield time-lapse platform. We are actively building this application and welcome early-access collaborations. If you are working with zebrafish toxicity assays and interested in evaluating zenCELL owl, <a href=\"mailto:info@innome.de\">contact us directly<\/a> to discuss your specific requirements and current system specifications.<\/p>\n    <\/details>\n  <\/div>\n<\/div>\n\n<!-- CTA -->\n<section class=\"zf-cta\">\n  <h2>Monitor Zebrafish Larvae Toxicity \u2014 Continuously<\/h2>\n  <p>Free 20-minute remote demo \u2014 see zenCELL owl brightfield time-lapse live, inside a real incubator. Discuss zebrafish compatibility for your assay.<\/p>\n  <a href=\"https:\/\/zencellowl.com\/live-remotedemo\/\" class=\"zf-btn\">Book Free Demo<\/a>\n  <a href=\"mailto:info@innome.de?subject=Zebrafish%20Brightfield%20Imaging%20Inquiry\" class=\"zf-btn zf-btn-ghost\">Ask About Zebrafish \u2192<\/a>\n<\/section>\n\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>zenCELL owl \u00b7 Zebrafish Applications Zebrafish Larvae Toxicity Monitoring \u2014 Continuous, Brightfield, Unattended Monitor developmental toxicity in zebrafish larvae continuously over time \u2014 morphology changes, survival, behavioral endpoints \u2014 brightfield [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-6822","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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