TopPette Single-Channel Adjustable Volume Pipette

TopPette Single-Channel Adjustable Volume Pipette

PRIMARY CLINICAL & DIAGNOSTIC USES

1. High-Precision Liquid Handling for Routine Clinical Assays
Primary Use: Provides a manual, single-channel adjustable volume pipette with a lightweight ergonomic body and a digital volume display, used for the accurate and reproducible transfer of patient samples, reagents, calibrators, and controls in routine clinical chemistry, immunoassays, and molecular diagnostics.

How it helps: For the clinical laboratory scientist and medical technologist, the TopPette’s precision piston mechanism delivers systematic error as low as ±2.5% and random error as low as ±1.5% at low volumes (e.g., 2.5 µL), ensuring consistent sample and reagent delivery. The clear digital volume window and smooth adjustment knob minimize setting errors. For the patient, this accuracy directly supports reliable results for critical diagnostic tests such as blood glucose, lipid panels, cardiac enzymes, and infectious disease serology, reducing the risk of misdiagnosis or repeat testing.

2. Versatile Volume Range for Diverse Clinical Applications
Primary Use: Covers a broad volume range from 0.1 µL to 10 mL across multiple models (0.1–2.5 µL, 0.5–10 µL, 2–20 µL, 5–50 µL, 10–100 µL, 20–200 µL, 100–1000 µL, 1000–5000 µL, 1000–10000 µL), allowing the same pipette family to be used for micro-volume PCR setup, medium-volume reagent addition, and large-volume media or buffer preparation.

How it helps: For the laboratory manager, a single pipette platform simplifies inventory management and training across multiple diagnostic applications. Each TopPette is calibrated according to ISO 8655 and supplied with an individual calibration certificate, ready for immediate use. For the patient, the ability to use trusted, consistent instruments across all testing platforms ensures that each sample receives uniform, high-quality handling from extraction to final readout.

3. Ergonomic Design to Minimize Operator Fatigue
Primary Use: Features a lightweight, chemically resistant polymer body, a low-force plunger, a relaxed finger rest, and a contoured handle designed for both right-handed and left-handed users, with a large digital display for unambiguous volume confirmation.

How it helps: For the high-throughput laboratory staff performing hundreds to thousands of pipetting steps daily, the ergonomic design reduces the risk of repetitive strain injury (RSI) and hand fatigue. The smooth plunger action and low ejection force allow comfortable operation over extended shifts. For the patient, this fatigue-reducing design contributes to consistent, error-free sample handling throughout the day, supporting day-to-day reproducibility of diagnostic test results.

4. Autoclavable Lower Assembly for Aseptic Work
Primary Use: The lower portion of the pipette (tip cone and piston assembly) is constructed from autoclavable materials and can be steam-sterilized at 121°C for 20 minutes without disassembly on select models, and the entire pipette body is UV-resistant for routine disinfection.

How it helps: For the cell culture specialist and microbiology technologist, the ability to autoclave the tip cone assembly eliminates the risk of cross-contamination between sensitive cell lines, sterile reagents, or microbial cultures. For the patient, rigorous sterilization of pipetting equipment ensures that specimens and cell-based products are not adulterated by contaminants, maintaining the safety and integrity of diagnostic tests and therapies.

SECONDARY & SUPPORTIVE USES

1. ELISA and immunoassay reagent dispensing: Transfers coating antibodies, blocking buffers, primary antibodies, enzyme conjugates, and substrate solutions into 96-well plates with high accuracy, ensuring uniform well-to-well development for clinical immunology testing.

2. qPCR and PCR master mix preparation: Delivers precise volumes of master mix, primers, probes, template DNA, and nuclease-free water into reaction tubes or plates, minimizing evaporation and cross-contamination for reliable amplification.

3. DNA and RNA extraction procedures: Transfers lysis buffers, binding buffers, wash buffers, and elution solutions during manual or automated nucleic acid purification from blood, tissue, or swab samples.

4. Cell culture media and supplement addition: Adds sterile media, fetal bovine serum, antibiotics, glutamine, and other growth supplements to culture flasks, dishes, or multi-well plates under aseptic conditions.

5. Protein quantification assays: Dispenses Bradford, BCA, or Lowry reagents into cuvettes or microplates, and adds protein standards and samples for concentration determination in research and QC laboratories.

6. Clinical chemistry sample transfer: Transfers patient serum, plasma, or urine from primary collection tubes to analyzer cups, microcuvettes, or multi-well plates for routine chemistry, electrolyte, and metabolite testing.

7. Blood bank and transfusion medicine: Pipettes red blood cell suspensions, antisera, reagent red cells, and saline for ABO/Rh typing, antibody screening, and compatibility testing with high reproducibility.

8. Pharmaceutical quality control: Delivers test solutions, dissolution samples, and QC standards for HPLC, UV-Vis, or other analytical methods where precise volume transfer is mandatory for regulatory compliance.

9. Food safety and environmental testing: Prepares food homogenates, environmental swab eluates, and enrichment broths for pathogen detection assays such as Salmonella, Listeria, and coliform quantification.

10. Forensic DNA analysis: Transfers extracted DNA, PCR products, and allelic ladders for STR profiling in forensic casework, where microliter precision and contamination control are critical.

11. Veterinary diagnostic testing: Processes animal blood, serum, tissue homogenates, and fecal samples for infectious disease testing, vaccine response monitoring, and genetic screening.

12. Drug discovery and compound screening: Dispenses assay buffers, cell suspensions, test compounds, and detection reagents into 96-well or 384-well plates for high-throughput screening campaigns.

13. Academic research and teaching: Serves as a durable, intuitive teaching tool for students learning fundamental pipetting techniques in molecular biology, biochemistry, and clinical laboratory science courses.

14. Next-generation sequencing library preparation: Transfers adapter mixes, indexing reagents, and bead suspensions for size selection and purification during NGS library construction.