Thermo Scientific Nunc Cell Scraper 32 cm Case of 250 Scrapers

Thermo Scientific™ Nunc™ Disposable Cell Scrapers, 32 cm (179707) – Case of 250

The Thermo Scientific™ Nunc™ Cell Scraper (179707) is a medical-grade, sterile fluid-handling tool engineered for the mechanical harvesting of adherent cell cultures. Featuring a 32 cm overall handle length, this scraper is structurally optimized for reach and dexterity within high-capacity culture vessels such as 150 cm² to 225 cm² (T-150/T-225) flasks and large roller bottles. The device utilizes an ergonomic, co-molded **pivoting thermoplastic elastomer (TPE) blade** that adjusts its pitch relative to the plastic surface, ensuring a smooth, low-shear scrape. Supplied as a commercial facility case of 250 individually wrapped scrapers, this single-use consumable guarantees clean, high-yield cell recovery while safeguarding the structural integrity of sensitive surface proteins and membranes.

Technical Performance & Architecture

• Pivoting Thermoplastic Elastomer Blade: Outfitted with a flexible, ultra-smooth TPE blade that effortlessly pivots around the handle axis. This dynamic movement allows the blade to remain flush against the contoured curves, corners, and flat floors of culture flasks, ensuring complete coverage without requiring harsh hand twisting.
• Low-Shear Mechanical Harvesting: Specially engineered to minimize physical cell lysis (cell bursting) during scraping. The blade edge cleanly lifts tenacious cell sheets (such as macrophages or tightly adherent cell lines) while preserving high cell viability and protecting delicate surface receptors from enzymatic degradation caused by trypsinization.
• Extended 32 cm Reach: The elongated, rigid polystyrene handle provides excellent leverage and extends deep into large-volume cell expansion vessels. This minimizes the risk of the operator's gloved hand contacting the flask neck, reducing external touch-contamination entry vectors.
• Individually Sealed Aseptic Security: Every cell scraper is packed inside its own sterile, peel-apart paper/plastic blister pouch. This configuration maintains a true aseptic boundary right up to the moment of use under the biosafety cabinet, supporting strict cGMP compliance.

Product Specifications

• Model Number / Catalog No: 179707
• Primary Manufacturer: Thermo Scientific™ (Nunc™ Product Portfolio)
• Overall Handle Length: 32 cm (~12.6 inches | Optimized for T-150, T-225, and Roller Bottles)
• Blade Width Dimensions: 1.8 cm (~0.7 inches)
• Material Chemistry: Rigid Polystyrene (Handle) / Flexible Thermoplastic Elastomer (Blade)
• Color Morphology: Clinical White Handle with a Teal/Blue Blade Profile
• Sterility Status: Certified Sterile via Gamma Irradiation (Individually pouched)
• Purity Baseline: Certified Non-Pyrogenic and Non-Cytotoxic to support delicate primary and stem cell lines
• Packaging Configuration: Case of 250 Scrapers (Individually wrapped units organized neatly within a tracking-coded master carton)

Key Benefits & Applications

• Enzyme-Free Harvesting Loops: The premier choice for harvesting cells when downstream assays (such as flow cytometry, receptor binding studies, or western blotting) require completely intact membrane proteins that would otherwise be cleaved by trypsin or Accutase®.
• High-Yield Adherent Cell Recovery: Maximizes total cell pellet retrieval from the interior walls of large-scale production vessels, leaving zero patches of unharvested biomaterial in tight corners.
• Downstream Functional Assays: Preserves high viability in sensitive primary cultures, microglial loops, and stem-cell-derived lines, ensuring accurate metabolic readouts in kinetic screening setups.
• **Multi-Vessel Standardization:** Provides procurement managers with a uniform, multi-vessel compatible harvesting tool that can be universally deployed across diverse cell line scaling teams.

Thermo Scientific™ and Nunc™ are registered commercial trademarks of Thermo Fisher Scientific Inc. Catalog number 179707 specifies the 32 cm length model with a pivoting blade. For small-scale harvesting inside 6-well plates or T-25/T-75 flasks, the shorter 22 cm Nunc cell scraper variant (Catalog number 179693) should be substituted instead.