Filtration for Medical & Biotech Applications
Protein filtration, cell separation and cell culture each call for different membrane materials and pore sizes. Our PES, Nylon, PVDF and PP hollow-fiber membranes provide options for development teams to discuss, from material specifications and pore-size analysis to packaging dimensions, as they plan further testing and development.
Illustrative image (AI-generated), not a real product/facility photo or test evidence.
Positioning
mbranfiltra makes microfiltration hollow-fiber membranes using the NTV-IPS phase-inversion process, which casts an asymmetric pore structure, in PES, Nylon, PVDF and PP, and continues research on adjusting membrane pore size. Specific medical and biotech uses require assessment against material specifications, test data and applicable requirements.
Applications
Protein filtration
Cell concentration, separation and culture
Hemodialysis
Vaccine filtration
Exosomes
These are application areas, not case studies or validated results. Suitability for each use depends on your process, regulations and validation; this is not a medical-device or sterility claim.
Click an image to open it full size
- Membrane pore structure System brochure p2 ↗
- EV recovery and marker analysis (brochure experiment, 60 nm) System brochure p2 ↗
- BenQ Dialysis automated TFF system (BenQ Dialysis equipment) System brochure p5 ↗
BenQ Qflow hollow fiber filter with mbranfiltra mPES membrane
Designed for tangential flow filtration (TFF): purification, concentration and diafiltration. BenQ Dialysis's brochure also shows research-use concentration and separation of extracellular vesicles (EVs / exosomes).
- Customized series S100 / S180 / S350: pore size 60 or 100 nm, filtering surface 100 / 180 / 350 cm² (system brochure p2)
- Flow rate @10000/s: 200 / 358 / 716 ml/min; maximum operating pressure 30 psi (60 nm) / 26 psi (100 nm)
- Standard series: lab, pilot and process sizes, MWCO / pore size 10 kDa – 0.65 μm (system brochure p3–p4)
Qflow-Neo is BenQ Dialysis's automated TFF separation system (equipment, system brochure p5); it is listed separately from the filters.
Specifications, standards and uses are as printed in BenQ Dialysis's brochures, which state that specifications may change without notice.
Technical Overview
| Item | Detail |
|---|---|
| Materials | PES and Nylon (hydrophilic polymers); PVDF and PP (hydrophobic polymers) |
| Format | Self-supporting microfiltration hollow-fiber membrane (HF-MF) |
| Structure | Asymmetric pore structure formed by NTV-IPS phase inversion |
| Pore size | Adjustable through the technology to suit different uses |
| Laboratory and analysis | Capillary flow porometer (CFP) and water-quality analyzer; analysis of customer materials and water samples |
Need pore-size distribution, protein-binding or flow data for your process?
Tell us your application, membrane material and operating conditions. We will reply with the specifications and test reports we can provide for a suitable model.
Third-party Test Results
| Test | Result |
|---|---|
| SGS test report | Per SGS report PX/2020/A011301 (sample MF02-M1, 2020-10-23): E. coli removal rate above 99.9%. Applies to this sample only, not the whole product line. |
| ISO 10993-5 | Cytotoxicity test, per report M62-200500018001 (ISO 10993-5, 2020-05): grade 2/mild, 22.2% viability reduction — not cytotoxic under the test conditions. Applies to this sample only. |
| BENQ test report | Per BenQ Dialysis Technology report BDT-NT-231207 (sample MF002, 2023-12-20): E. coli clearance rate above 99.9%. Applies to this sample only, not the whole product line. |
| Taiwan–US inspection | Per Taiwan–US Testing Technology (SUPERLAB) report M61-200200105 (mfd. 2019/12, 2020-02-13; pages 1–2 of the same 5-page report): no residual plasticizers or heavy metals detected. Applies to this sample only, not the whole product line. |
Report number, tested sample, date and method are shown with each report scan below. Each result applies only to the specific sample and date tested, not a blanket guarantee across the whole product line; the two Taiwan–US results below are two pages of the same 5-page report, not two separate tests.
Each result applies to its own tested sample and conditions; they are not one combined specification.
SGS Test Report No. PX/2020/A011301 — sample MF02-M1, tested 2020-10-23. Water filtered at 1.6 L/min for 5 min; E. coli reduced from 5.7×10³ to <1 CFU/100mL (removal rate >99.9%).
Cytotoxicity Test Report No. M62-200500018001 (per ISO 10993-5:2009) — sample: hollow-fiber membrane cartridge material (no specific model stated), tested 2020-05. MTT assay + morphology on L929 mouse fibroblasts, 24 h co-culture with a 10% serum extract. Result: cytotoxicity grade 2 (mild); 100% extract reduced viability 22.2% vs. control. Conclusion: not cytotoxic under the test conditions.
BenQ Dialysis Technology Test Report No. BDT-NT-231207 — sample MF002 (faucet-mounted purifier), tested 2023-12-20. 700 mL of pure water filtered through the sample; E. coli reduced from 2.2×10³ to <1 CFU/100mL (clearance rate >99.9%).
Taiwan-US Testing Technology (SUPERLAB) Report No. M61-200200105 (page 2 of 5) — sample: hollow-fiber membrane cartridge material, manufactured 2019/12 (no specific model stated), tested 2020-02-13. 9 plasticizers tested (DMP, DEP, DIBP, BBP, DBP, DEHP, DNOP, DINP, DIDP), detection limit 0.05 ppm. Result: none detected.
Taiwan-US Testing Technology (SUPERLAB) Report No. M61-200200105 (page 1 of 5 — the same report as the plasticizer result above) — same sample, tested 2020-02-13. 6 heavy metals tested (arsenic, lead, copper, mercury, cadmium, zinc). Result: none detected.
Customization
Material selection
PES, Nylon, PVDF and PP membranes are available.
Custom packaging
Multiple sizes to suit customer needs.
New formats
We flexibly develop new product formats with customers.
Supply for OEM products
Hollow fibers are supplied to filter-module and cartridge manufacturers for their end products; discuss your project with us.
How to get documents
- 1. Tell us your need
Send the form with your application, model or specification.
- 2. We check
Our technical and sales team confirms what we can provide.
- 3. We reply
We reply by email. The test-report scans above are already viewable directly on this page; complete technical specifications and other documents are not offered as a direct online download and must be requested this way.
Looking for a filtration partner?
Request technical data or samples, or discuss customization.
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