Product Description
LIGHT LABS is proud to offer the CELLTREAT Cell Scraper with Lifter Blade (Cat # 229311) — a premium, sterile, individually wrapped cell scraper engineered for the gentle, efficient harvesting of adherent cells from tissue culture flasks, dishes, plates, and bottles using a natural raking motion. The 229311 features a 25cm handle and a 20mm "Lifter" blade — the blade is positioned perpendicular to the handle, enabling a raking or pulling motion that gets under cells and lifts them from the growth surface, making it particularly effective for detaching adherent cell types that require a different mechanical approach than the standard parallel scraping motion.
The distinction between the Lifter blade and the Scraper blade is critical for optimizing cell harvest technique. The parallel "Scraper" blade (229310 for 25cm handle, 229315 for 39cm handle) works like a windshield wiper — sweeping across the flask surface in a back-and-forth motion. The perpendicular "Lifter" blade of the 229311, by contrast, works like a garden rake — the researcher pulls toward themselves, getting underneath cells and lifting them from the surface. Many researchers find the Lifter blade particularly effective for cell types that tend to slide under the blade rather than detach when using the scraper motion.
Like all CELLTREAT cell scrapers, the 229311 features a soft, pliable TPE blade that conforms to flask surface contours without scratching or scoring polystyrene, maximizing cell recovery while preserving cell viability. The rigid ABS handle provides ergonomic grip with sufficient rigidity for efficient force transfer. Every scraper is certified nonpyrogenic and individually packaged in a sterile paper/poly wrapper. LIGHT LABS is your trusted source for CELLTREAT laboratory plasticware.
KEY FEATURES
- 20mm Lifter blade positioned perpendicular to the handle — enables natural raking/pulling motion for getting under cells and lifting them from the growth surface
- Distinct from Scraper blade (229310/229315) which is positioned parallel to the handle for windshield wiper-style sweeping motion — choose based on your preferred harvest technique and cell type
- 25cm handle — standard length suitable for T-25, T-75, and smaller format dishes and plates; for larger T-150/T-182/T-225/T-300 flasks, see 39cm handle versions
- Soft, pliable TPE (thermoplastic elastomer) blade — flexible blade conforms to flask surface contours without scratching or scoring polystyrene; outperforms hard plastic blades
- Rigid ABS handle — ergonomic grip with sufficient rigidity for efficient force transfer to blade tip
- Certified nonpyrogenic and RNase-/DNase-free
- Sterile — gamma irradiated; individually wrapped in paper/poly wrappers for single-use sterility assurance
- Every case printed with lot number for quality traceability
- Fisher Scientific Catalog No. 50-201-975
SPECIFICATIONS
| Attribute | Detail |
|---|---|
| Catalog Number | 229311 |
| Fisher Scientific Catalog No. | 50-201-975 |
| Brand | CELLTREAT Scientific Products |
| Product Name | Cell Scraper — 25cm Handle, 20mm Lifter Blade |
| Handle Length | 25 cm |
| Blade Width | 20 mm |
| Blade Type | Lifter (perpendicular to handle — raking motion) |
| Handle Material | ABS (Acrylonitrile Butadiene Styrene) |
| Blade Material | TPE (Thermoplastic Elastomer) — soft, pliable |
| Sterility | Sterile (gamma irradiated) |
| Certifications | Nonpyrogenic, RNase-free, DNase-free |
| Packaging | Individually wrapped (paper/poly); 100/case |
| Lot Traceability | Lot number printed on every case |
| Quantity | 100/case |
BLADE TYPE GUIDE — CHOOSING THE RIGHT CELLTREAT CELL SCRAPER
| Blade Type | Position | Motion | Best For |
|---|---|---|---|
| Lifter (229311, 229316) | Perpendicular to handle | Raking/pulling motion | Getting under cells; lifting from surface |
| Scraper (229310, 229315) | Parallel to handle | Windshield wiper/sweeping motion | Standard scraping across flask surface |
| Pivoting (229312) | Free-rotating | Any angle | Accessing corners and angles of culture vessels |
APPLICATIONS
- Adherent cell harvesting from tissue culture flasks, dishes, multi-well plates, and bottles
- Cell detachment using raking/lifting motion preferred over parallel scraping
- Enzymatic digestion-free cell detachment for sensitive cell types
- Cell viability-preserving harvest for flow cytometry, downstream assays, and cryopreservation
- Cell counting and subculture preparation from smaller-format culture vessels (T-25, T-75)
- Protein extraction and cell lysis protocols requiring complete cell removal
- Applications where cells tend to slide under parallel scraper blades
