ProtipTM Ultra-Micro / Micro / Macro Pipette Tips

Overview

The ProtipTM Ultra-Micro / Micro / Macro Pipette Tips are precision-engineered, single-use polymeric pipette tips designed for high-efficiency sample handling in clinical diagnostics, molecular biology, and neuropharmacological research laboratories. Unlike conventional silica-based solid-phase extraction (SPE) media or passive polymer tips, ProtipTM tips integrate a proprietary hydrophilic polymer matrix that enables significantly enhanced binding capacity for biomolecules—including peptides, small-molecule drugs, metabolites, and nucleic acid fragments—via optimized hydrogen bonding and dipole–dipole interactions. This architecture delivers 5–10× higher binding efficiency compared to standard siliconized or untreated polypropylene tips, reducing analyte loss during transfer and minimizing carryover in sequential assays. The system is engineered for compatibility with standard positive-displacement and air-displacement pipettors across three volumetric tiers, supporting reproducible microscale processing under GLP-compliant workflows.

Key Features

• Three-tiered volume optimization: Ultra-Micro (1–10 µL), Micro (10–100 µL), and Macro (100–500 µL) formats ensure precise adaptation to assay scale—from high-sensitivity neurochemical profiling to routine clinical QC testing.
• Proprietary hydrophilic polymer coating uniformly applied via plasma-assisted surface grafting, ensuring batch-to-batch consistency and eliminating leachables detectable by LC-MS/MS.
• Binding capacities calibrated per tier: 0.2 µL (Ultra-Micro), 1.5 µL (Micro), and 9 µL (Macro) of target analyte solution—validated using bovine serum albumin (BSA) and cortisol standards per ISO 8655 Annex C protocols.
• Autoclavable up to 121°C for 15 minutes (per ASTM F1724), enabling integration into sterile diagnostic workflows without compromising binding integrity.
• Low-binding polypropylene body with tapered tip geometry minimizes residual volume (<0.5% retention) and supports laminar flow delivery—critical for viscous CSF or plasma-derived samples.

Sample Compatibility & Compliance

ProtipTM tips demonstrate validated compatibility with human cerebrospinal fluid (CSF), whole blood lysates, tissue homogenates (brain, hippocampus, spinal cord), and pharmacokinetic plasma matrices. Binding performance remains stable across pH 4.0–9.5 and ionic strengths up to 500 mM NaCl—enabling direct use in unbuffered clinical specimens. All lots comply with ISO 13485:2016 for medical device manufacturing, and are certified free of detectable RNase, DNase, human DNA, and endotoxin (<0.01 EU/mL, per USP ). Documentation packages include full traceability to raw material lot numbers and third-party biocompatibility reports (ISO 10993-5 cytotoxicity, ISO 10993-10 sensitization).

Software & Data Management

While ProtipTM tips operate as consumables without embedded electronics, their usage is fully trackable within LIMS environments (e.g., Thermo Fisher SampleManager, LabVantage) via GS1-compliant 2D data matrix barcodes printed on individual tip racks. Each barcode encodes lot number, expiration date, sterilization batch ID, and tier-specific calibration certificate hash. Integration with electronic lab notebooks (ELNs) such as Benchling or LabArchives supports audit-trail generation aligned with FDA 21 CFR Part 11 requirements for electronic records and signatures. Full documentation—including CoA, CoC, and ISO 17025-accredited test reports—is accessible via secure portal with role-based access control.

Applications

• Pre-analytical enrichment of low-abundance neuroactive compounds (e.g., acetylcholine, GABA, serotonin) from microliter-volume CSF samples prior to UHPLC-MS/MS quantification.
• High-recovery transfer of pharmacologically active metabolites in ADME studies involving rat brain microdialysates.
• Minimizing adsorptive loss during serial dilution of monoclonal antibody therapeutics in potency assays (USP ).
• Routine QC pipetting in CLIA-certified clinical labs performing therapeutic drug monitoring (TDM) for antiepileptic or psychotropic agents.
• Automated liquid handling platforms (e.g., Hamilton STAR, Tecan Freedom EVO) requiring consistent tip performance across 10,000+ cycles without clogging or deformation.

FAQ

Are ProtipTM tips compatible with positive-displacement pipettors?
Yes—mechanical tolerances adhere to ISO 8655-2:2022 dimensional specifications for both air-displacement and positive-displacement systems.
Can I use these tips for RNA isolation workflows?
They are not intended as standalone RNA capture devices but significantly reduce RNA loss during transfer steps in column-based or magnetic bead protocols (validated with QIAGEN RNeasy and Thermo Fisher MagJET kits).
Do you provide lot-specific binding validation data?
Each shipment includes a Certificate of Analysis listing binding capacity verification against BSA and cortisol reference standards, measured gravimetrically and spectrophotometrically per ISO/IEC 17025 procedures.
Is shelf-life affected by ambient humidity exposure?
Tips are supplied in nitrogen-flushed, aluminum-laminated blister packaging; stability is guaranteed for 36 months at 15–25°C and ≤60% RH.
Are ProtipTM tips suitable for regulated GMP manufacturing environments?
Yes—full regulatory dossiers, including extractables/leachables studies and change control history, are available under NDA/MAA submission support agreements.