Cellular and Tissue Models

Integrated in vitro, tissue-engineered, and ex vivo testing provides mechanistic and performance-data to support product optimization, risk assessment, regulatory submissions, and successful clinical translation. iFyber evaluates biocompatibility, biological response, functional performance, and safety across diverse biomaterials, medical devices, and investigational therapeutics to help teams advance safe, effective products efficiently from early development through preclinical evaluation.

In Vitro Biocompatibility Testing

In vitro biocompatibility testing evaluates how biomaterials, medical devices, and investigational compounds interact with mammalian cells under controlled laboratory conditions. These studies help researchers assess cytotoxicity, metabolic activity, proliferation, membrane integrity, morphology, and biological responses that inform material selection, product optimization, and regulatory decision‑making.

iFyber's Capabilities in In Vitro Testing

iFyber designs biocompatibility studies around the intended use of each technology, tailoring assay formats to support ISO 10993 compliance, product development needs, and regulatory submissions. Our team also investigates unexpected or failed biocompatibility results, identifies potential causes, and develops follow‑up studies to resolve technical challenges efficiently.

Capabilities Include:

  • In vitro biocompatibility screening
  • Customized assay design
  • Investigation of failed biocompatibility results
  • Biological response characterization
  • Support for ISO 10993 and regulatory submissions
  • Collaborative troubleshooting and study refinement
MTT Assay

The MTT assay provides a quantitative assessment of cellular metabolic activity as an indicator of cell viability. The MTT assay has been demonstrated to be a relevant predictor of in vivo biocompatibility performance, highlighting its usefulness as a screening assay for new biomaterials or investigational compounds.

Alamar Blue Assay

The Alamar Blue assay provides a quantitative assessment of cellular metabolic activity as an indicator of cell viability. Its non-destructive nature makes it particularly useful for monitoring cellular responses to biomaterials or investigational compounds while preserving cells for subsequent analyses. This approach provides a sensitive and reliable method for evaluating cytocompatibility and can complement other viability assays in the characterization of cellular responses.

Live/Dead Staining

The LIVE/DEAD staining provides a complementary assessment of cell viability by simultaneously evaluating intracellular activity and plasma-membrane integrity. - This multiparametric approach is useful for characterizing cellular responses and for guiding subsequent mechanistic testing.

Other Available Assays

Other available in vitro services include TUNEL Assay, BRDU Assay, Bright Field Microscopy, Neutral Red Uptake, Trypan Blue Exclusion, Bacterial Reverse Mutation Assay, Platelet activation, Hemolysis assay. Assays are selected and configured according to the test article, biological question, and applicable study requirements.

Advanced Cellular Models (2D and 3D)

Advanced 2D and 3D cellular models extend conventional screening by incorporating tissue architecture, multiple cell types, biomaterials, and relevant microbial or viral challenges. These systems provide more context-specific evaluation of product performance, safety, efficacy, cell-material interactions, and host-pathogen responses while maintaining experimentally controlled conditions.

iFyber's Capabilities in Advanced Cellular Models

iFyber develops advanced cellular systems that incorporate bacteria, viruses, and engineered tissues to evaluate product performance under more physiologically relevant conditions. These platforms enable researchers to investigate how products, materials, and engineered tissue systems perform in complex biological environments, supporting evaluation across antimicrobial, immune, biomaterial, and tissue engineering applications.

Capabilities Include:

  • Bacteria–cell co‑culture systems (including macrophage activation and Gram‑positive/Gram‑negative challenges)
  • Virus–cell co‑culture systems for infectivity and inactivation testing
  • Tissue engineering platforms
  • Scaffold characterization (physical and chemical evaluation)
  • Biological performance evaluation
  • Cell infiltration and recellularization studies
  • Biomaterial degradation analysis
2D Cell Culture Assays

2D cell culture assays provide foundational controlled, quantitative platforms for investigating cellular behavior and treatment response. iFyber uses scratch assays to monitor migration-dependent closure of a defined gap in epithelial or fibroblast monolayers and Transwell-based assays to quantify cell migration or invasion across porous membranes. These approaches, along with broader 2D cell and tissue model development, support early‑stage screening and comparative evaluation of biomaterials, devices, and therapeutic candidates.

3D In vitro Assay (HEE)

iFyber’s Human Epidermis Equivalent (HEE) model provides a stratified, three-dimensional epidermal tissue system for evaluating treatment effects in a more tissue-relevant context than monolayer culture. This platform can be used to assess tissue response, irritation-related endpoints, barrier-associated effects, or product performance.

3D Ex vivo Assay

iFyber’s ex vivo assays use biologically relevant tissue substrates to evaluate treatment performance. Porcine tissue models support multispecies biofilm studies that model key features of contaminated or infected wounds, while human viable skin models enable induction of burn, wound infections, and assessment of wound closure, bacterial burden, and cytokine release.

Tissue-engineered and Ex Vivo Models

Tissue-engineered and ex vivo models bridge the gap between cell-based assays and more complex preclinical studies by preserving key aspects of tissue architecture, extracellular matrix, and multicellular interactions. These models help researchers assess efficacy, troubleshoot unexpected safety results, and understand product behavior across escalating biological complexity.

iFyber's Capabilities in Tissue Modeling

iFyber evaluates device and therapeutic interactions across tissue‑engineered and ex vivo systems, supporting both efficacy and safety assessments. Our team troubleshoots failed biocompatibility results, designs follow‑up studies and develops model systems ranging from monolayer cultures to human viable skin to address specific development needs.

Capabilities Include:

  • 3D cell and tissue model development
  • Cell–biomaterial interaction studies (stem cells, immune cells, osteoblasts, endothelial cells, PBMCs, M1/M2 polarization)
  • Human viable skin models for wound healing, infection, and cytokine/growth factor analysis
  • Mammalian–microbial and cell–virus co‑culture systems
  • Decellularization and demineralization workflows
  • Recellularization assays for cell infiltration and biomaterial degradation
  • ISO‑aligned biocompatibility and safety testing
  • Skin irritation testing using 3D tissue models
  • Endotoxin and pyrogenicity assays

Mechanistic and Functional Response Analysis

Mechanistic and functional response analysis and integrates physical, chemical, mechanical, and biological measurements to characterize biomaterials and tissue‑engineered systems under application-relevant conditions. These studies help researchers understand durability, degradation, mechanical behavior, and functional performance relevant to clinical use.

iFyber's Capabilities in Mechanistic and Functional Response Analysis

iFyber characterizes material properties, evaluates changes over time, and assesses functional performance using physical, chemical, and biological testing approaches. These studies support product development, performance validation, and regulatory activities.

Capabilities Include:

  • Comprehensive physical characterization
  • Thermal analysis and decomposition profiling
  • Surface area and particle size evaluation
  • Porosity and interconnectivity assessment
  • Mechanical property testing
  • Molecular weight analysis
  • Pre‑/post‑study material comparison
  • Sterilization impact assessment

Beyond Standard CRO Testing

Loop-Mediated Isothermal Amplification

Augment Your R&D Team with Expertise or Resources

We are a contract research organization offering preclinical testing solutions that include fractional access to a team of multidisciplinary scientists who can integrate into your existing R&D team and are trained to see the big picture including incorporating quality and regulatory guidance, an understanding of patient and market needs, and more.

Loop-Mediated Isothermal Amplification
2 scientists collaborating suggesting High-touch CRO support.

High-Touch, Personalized Attention

Good science, shorter turnaround times, and quality communication are staples of iFyber. Our team goes the extra step to understand your needs and ensure experiments deliver valuable insights needed to complete research projects on budget & on time.

2 scientists collaborating suggesting High-touch CRO support.
Two R&D scientists from a CRO talking while in a lab.

Move Through Complex FDA/Regulatory Requirements

Our understanding of the regulated development environment provides a framework for laboratory activities. We are committed to working with your team to deliver integrated solutions that meet complex quality and regulatory demands.

Two R&D scientists from a CRO talking while in a lab.
Preclinical CRO completing preclinical research services.

Scientist-to-Scientist Collaboration

We have a stable of highly capable scientists who ask questions, listen, and provide solutions as your development needs require. They are ready to contribute to your team, solve problems, or offer another point of view.

Preclinical CRO completing preclinical research services.
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We Deliver Insights, Not Just Data

We take a partnership approach. We’ll help guide you on what scientific services you need, choose methods, and design experiments to provide actionable information. Once the experiment is complete, we’ll provide insight and context on what it means, recommended next steps, and more.

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Experienced Project Managers

Our processes achieve a clear development path with intentional communication, defined timelines, and comprehensive reporting that aim to get you answers in less time.
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A Trusted, Global-Serving Contract Research Organization

Engage with iFyber’s Scientific Team

Connect with iFyber to explore how cellular and tissue models can support your product development.