3M™ Polisher ST
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About the product
The 3M™ Polisher ST is a fully encapsulated single-use anion exchange (AEX) product. It is intended to reduce host cell protein, viruses, and other negatively charged contaminants in a flow-through polishing chromatography mode in biopharmaceutical process streams. The 3M™ Polisher ST is a synthetic, hybrid purifier containing two complementary AEX-functional media: a quaternary ammonium (“Q”) functional nonwoven and a guanidinium-functional membrane. The Q-functional nonwoven provides reduction of turbidity (when present) and DNA. It also provides a portion of the product’s AEX capacity for HCP and virus reduction. Guanidinium functionalized membrane downstream of the functionalized nonwoven provides additional AEX polishing capacity. The novel guanidinium functionality of the downstream AEX polishing membrane mimics the amino acid, arginine, one of the three positively charged naturally occurring standard amino acids that make up proteins and is responsible for viral clearance and high salt tolerance.
Product details
- The 3M™ Polisher ST is single use multi-mechanism membrane adsorber which contains a Q-functional anion exchange non woven media and guanidinium functionalized membrane. This product removes residual turbidity, DNA and HCP and provides robust virus clearance for improved downstream/polishing purification.
- Single-use technology as a cost-efficient option to increase biomass production by delivering high purity and yield in the downstream polishing unit operation in therapeutic recombinant protein process in biologically relevant operating conditions
- Replaces downstream AEX polishing column for reduction of HCP and virus in a salt tolerant (ST) manner as a single-use solution
- Provides DNA reduction in a salt tolerant (ST) manner compared with conventional Q-functional AEX resins
Suggested Applications
- Performance unaffected by process fluid turbidity up to 40 NTU
- Residual DNA removal, when present, in process stream
Product specifications
| Industries |
Industries
Biopharmaceutical manufacturing |
| Net Weight (Metric) |
Net Weight (Metric)
78 g, 10 g, 1.2 kg, 15.5 g, 1.8 kg, 1.1 kg, 3.8 kg, 12.7 kg |
| Filter Technology |
Filter Technology
Anion exchange chromatography |
| Micron Rating |
Micron Rating
0.8 μm |
| OverallDiameterImperial |
OverallDiameterImperial
3.03 in, 9.49 in |
| Product Series |
Product Series
Polisher ST |
| Legacy SKU |
Legacy SKU
70020347004, 70020347020, 70020346972, 70020347046, 70020349133 |
| categoryName |
categoryName
Chromatography Filters |
| Flow Rate (Imperial) |
Flow Rate (Imperial)
0.005 gal/min, 0.075 gal/min, 0.224 gal/min, 0.037 gal/min, 0.506 gal/min |
| OverallHeightImperial |
OverallHeightImperial
1.77 in, 5.98 in, 3.98 in |
| Overall Height (Imperial) |
Overall Height (Imperial)
3.46 in, 1.89 in, 3.98 in, 2.32 in, 2.99 in, 8.74 in |
| OverallHeightMetric |
OverallHeightMetric
8.8 cm, 10.1 cm |
| FlowRateImperial |
FlowRateImperial
0 gal/min, 0.001 gal/min |
| NetWeightMetric |
NetWeightMetric
72 g |
| End Modification |
End Modification
3/4 in Sanitary Connectors, Luer Lock, 1 1/2 in Sanitary Connectors |
| Category name |
Category name
Chromatography Filters |
| ProductSeries |
ProductSeries
Polisher ST |
| LEGACY_SKU_NO |
LEGACY_SKU_NO
70020346964, 70020346980, 70020347038, 70020347012 |
| Overall Height (Metric) |
Overall Height (Metric)
4.8 cm, 10.1 cm, 4.5 cm, 5.9 cm, 15.2 cm, 7.6 cm, 22.2 cm |
| FlowRateMetric |
FlowRateMetric
1 ml/min, 25 ml/min, 1020 ml/min |
| MicronRating |
MicronRating
0.8 μm |
| OverallDiameterMetric |
OverallDiameterMetric
24.1 cm |
| Catalog number |
Catalog number
BC25, EMP301STX080R, BC4, BC170, EMP710STX080R, EMP770STX080R |
| Flow Rate (Metric) |
Flow Rate (Metric)
25 ml/min, 340 ml/min, 4 ml/min, 170 ml/min, 2.3 l/min, 16 l/min |
| EndModification |
EndModification
1 1/2 in Sanitary Connectors |
| FilterType |
FilterType
Single Use |
| Overall Diameter (Imperial) |
Overall Diameter (Imperial)
1.69 in, 9.49 in, 3.03 in, 17.72 in |
| GLBL_CAT_NBR |
GLBL_CAT_NBR
BC1, BC340, BC1020 |
| Overall Diameter (Metric) |
Overall Diameter (Metric)
7.7 cm, 4.3 cm, 24.1 cm, 45 cm |
| Filter Type |
Filter Type
Single Use |
| Application |
Application
Anion exchange |
