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- FluxMPS™ Minimum Essential Medium (MEM), High Glucose, NEAA & 25mM HEPES w/o L-Glutamine, Sodium Pyruvate, Sodium Bicarbonate: 1X Liquid
FluxMPS™ Minimum Essential Medium (MEM), High Glucose, NEAA & 25mM HEPES w/o L-Glutamine, Sodium Pyruvate, Sodium Bicarbonate: 1X Liquid
Microfluidics Suitable, quadruple-stage ultra-filtered (0.1 µm ×2 + 0.04 µm ×2) 1X liquid MEM High Glucose + NEAA + 25 mM HEPES formulation engineered for primary neurons and related primary cell models on organ-on-a-chip (OoC) and microphysiological system (MPS) platforms. A quadruple-stage train (0.1 µm ×2 + 0.04 µm ×2) reaches a 0.04 µm final cut-off, five times finer than the 0.22 µm membranes used for conventional sterile filtration. NEAA is pre-loaded to reduce metabolic burden on primary cells, and 25 mM HEPES (pKa 7.3 at 37°C) provides robust CO2-independent pH buffering in a formulation that omits L-Glutamine, Sodium Pyruvate, and Sodium Bicarbonate for full user-defined metabolic control.
- High Glucose (4.5 g/L) supports energy-demanding primary cell types.
- NEAA pre-loaded — reduces metabolic burden and ammonia accumulation from de novo synthesis.
- 25 mM HEPES (pKa 7.3 at 37°C) provides CO2-independent pH buffering — ideal for open-air handling, flow cytometry prep, and atmospheric incubation.
- Quadruple-stage filtration train (0.1 µm ×2 + 0.04 µm ×2) reaching a 0.04 µm final pore size, with 0.1 µm mycoplasma-retentive filtration applied at every stage.
- Endotoxin release specification < 0.05 EU/mL (LAL, USP <85>), controlled per manufacturing batch.
- Formulated without L-Glutamine, Sodium Pyruvate, or Sodium Bicarbonate for complete user-defined metabolic and buffering control.
- Manufactured under an ISO 13485:2016 quality management system with a per-lot Certificate of Analysis.
- Media familyMEM High Glucose + NEAA + 25mM HEPES
- Glucose4500 mg/L (4.5 g/L, High Glucose)
- HEPES25 mM, pKa 7.3 at 37°C
- L-GlutamineNot added
- Sodium PyruvateNot added
- pH (USP <791>)7.4
- Osmolality (USP <785>)235–275 mOsm/kg H2O
- Endotoxin (USP <85>)< 0.05 EU/mL
- Filtration0.1 µm ×2 + 0.04 µm ×2
- Shelf Life12 months from date of manufacture, unopened
Engineered for primary cell culture where standard media fails
MEM with Earle's Salts is a foundational medium for primary cell biology — but conventional 0.22 µm filtered MEM passes mycoplasma-sized organisms, subvisible particulates, and endotoxin that can alter primary cell phenotype. FluxMPS™ is built to reduce these failure modes while preserving the full nutritional profile primary cells depend on.
Microchannel-safe purity
0.04 µm final filtration and USP <788> particulate testing help keep microfluidic channels and chip geometries free of clogging particulate.
Primary cell–optimized formulation
MEM + Earle's Salts + NEAA is an established base for primary fibroblasts, neurons, epithelial, and vascular cells.
HEPES: CO2-stable pH
25 mM HEPES helps prevent pH drift during open-air suspension handling, flow cytometry prep, and multi-well assay setup outside CO2 incubators.
Low endotoxin release specification
< 0.05 EU/mL endotoxin release specification, controlled per manufacturing batch, supports work with endotoxin-sensitive primary fibroblast, neuronal, and epithelial cultures.
NEAA reduces metabolic burden
Pre-loaded NEAA reduces the de novo synthesis burden on primary cells, which may improve viability in low-serum conditions and reduce ammonia accumulation.
Customization on demand
pH, glucose, HEPES concentration, and component modifications available. Contact support@diagnocine.com.
Quadruple-stage filtration system
Four serial filtration stages reaching a final 0.04 µm polish under ISO Class 5 aseptic fill conditions. The train is a repeated prefilter + final-filter pair, run twice in series: each 0.04 µm final filter is protected by its own dedicated 0.1 µm prefilter.
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1
0.1 µm Prefiltration I
Large particulate, cell debris and protein aggregate removal; protects the first 0.04 µm cartridge.
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2
0.04 µm Final filtration I
First 0.04 µm pass; retains sub-micron particulates and microaggregates that pass a standard 0.22 µm filter.
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3
0.1 µm Prefiltration II
Second dedicated prefilter, protecting the second 0.04 µm cartridge.
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4
0.04 µm Final filtration II — Polish
Ultimate polishing filter; aseptic fill and finish in a validated ISO Class 5 (Class 100) environment.
Performance vs. conventional media
© Diagnocine® — DCP-MEMGH-QPB1X
Primary cell models and OoC applications
FluxMPS™ DCP-MEMGH-QPB1X is formulated for primary neurons and related primary cell models, with 0.04 µm filtration purity supporting microfluidic platform compatibility.
Automated Bioreactors & Robotics
An optional 0.01 µm (10 nm) ultra nano-filtered MPS Grade variant of this formulation is available on request for automated bioreactor and robotic liquid-handling systems.
- Total Particulate Exclusion: 0.01 µm filtration removes nanoparticulate aggregates the 0.04 µm tier does not.
- Valve & Sensor Protection: Reduces micro-fouling risk in delicate chip and valve geometries.
- Extended Perfusion Stability: Supports consistent nutrient delivery over long-duration perfusion culture.
Inquiry Required: Contact support@diagnocine.com for the 0.01 µm MPS Grade variant.
Neuronal Chips & Brain-on-Chip
MEM + Earle’s Salts + NEAA is a well-established base for primary cortical neurons, DRG neurons, and iPSC-derived neuronal networks in compartmentalized chips.
Epithelium-on-Chip
MEM with NEAA supports primary epithelial cells and barrier integrity in transwell and microfluidic TEER-monitored platforms.
Primary Fibroblast & Stromal Models
MEM with NEAA is a classical base for primary dermal, lung, and cardiac fibroblasts in low-serum or serum-free OoC conditions.
Vascular Cell Culture
Earle’s Salts ionic balance supports vascular smooth muscle cells and primary endothelial co-culture models on vascular-on-chip platforms.
Organ-on-a-Chip & MPS
0.04 µm filtered MEM helps prevent particulate clogging in sub-100 µm neuronal and epithelial chip microchannels.
Microscopy & Optical Sensing
Ultra-low particulate load from quadruple-stage filtration supports confocal microscopy, TEER sensor readouts, and biosensor integration on primary cell chips. This formulation contains phenol red (11 mg/L); a phenol red–free variant is available on request for applications requiring minimal optical background.
Analytical release specifications
Every lot released against the full specification matrix. CoA: support@diagnocine.com.
| Parameter | Specification |
|---|---|
| Formulation | [+] Phenol Red, [+] HEPES (25 mM), [+] Calcium, [+] Magnesium, [+] High Glucose (4500 mg/L) | [-] L-Glutamine, [-] Sodium Bicarbonate, [-] Sodium Pyruvate |
| Appearance | Orange-to-red colored, clear solution |
| Glucose | 4500 mg/L (4.5 g/L, High Glucose) |
| HEPES | 25 mM (5958 mg/L), pKa 7.3 at 37°C |
| NEAA | Present |
| L-Glutamine | Not added |
| Sodium Pyruvate | Not added |
| pH USP <791> | 7.4 |
| Osmolality USP <785> | 235–275 mOsm/kg H2O |
| Total ingredients | 35 components across 4 categories |
| Parameter | Specification |
|---|---|
| Endotoxin USP <85> BET | < 0.05 EU/mL (per batch) |
| Sterility USP <71> | No growth / 14 days |
| Mycoplasma | 0.1 µm mycoplasma-retentive filtration (not tested per lot) |
| Particulate ≥10 µm USP <788> | NMT 25/mL |
| Particulate ≥25 µm USP <788> | NMT 3/mL |
| Water purity | Type 1, 18.2 MΩ·cm |
| Manufacturing std. | ISO 13485:2016 |
| Fill environment | ISO Class 5 (Class 100) |
| Parameter | Specification |
|---|---|
| Storage temperature | 2–8°C, away from light |
| Freeze-thaw | Do not freeze |
| Shelf life | 12 months from date of manufacture, unopened |
| Shipping condition | Cold pack |
| CO2 requirement | CO2-independent — 25 mM HEPES alone maintains pH 7.2–7.4 at 37°C without gas supplementation |
| Parameter | Specification |
|---|---|
| Raw material grade | Reagent / cell culture grade |
| Traceability | Full lot traceability per ISO 13485 |
| Manufacturing QMS ISO | ISO 13485:2016 certified |
| UNSPSC | 41116155 — Molecular biology and cell culture growth media (UNv260801) |
| Regulatory alignment | 21 CFR Part 820 (QMSR) aligned |
| Production method | Micro-batch, per-lot QC release |
| Available pack sizes | 500 mL, 1000 mL |
| Intended use | Research Use Only (RUO) |
Full composition (mg/L)
MEM High Glucose + NEAA + 25mM HEPES: 35 ingredients per lot, with CAS numbers where established. NEAA components are listed under AMINO ACIDS. HEPES (25 mM = 5958 mg/L, CAS 7365-45-9) is listed under OTHERS.
| Component | CAS Number | mg/L |
|---|---|---|
| INORGANIC SALTS | ||
| Calcium chloride dihydrate | 10035-04-8 | 265.000 |
| Magnesium sulfate anhydrous | 7487-88-9 | 97.720 |
| Potassium chloride | 7447-40-7 | 400.000 |
| Sodium chloride | 7647-14-5 | 6800.000 |
| Sodium dihydrogen phosphate anhydrous | 7558-80-7 | 122.000 |
| Component | CAS Number | mg/L |
|---|---|---|
| AMINO ACIDS | ||
| Glycine | 56-40-6 | 7.500 |
| L-Alanine | 56-41-7 | 8.900 |
| L-Arginine hydrochloride | 1119-34-2 | 126.000 |
| L-Asparagine monohydrate | 5794-13-8 | 15.000 |
| L-Aspartic acid | 56-84-8 | 13.300 |
| L-Cystine dihydrochloride | 30925-07-6 | 31.300 |
| L-Glutamic acid | 56-86-0 | 14.700 |
| L-Histidine hydrochloride monohydrate | 5934-29-2 | 42.000 |
| L-Isoleucine | 73-32-5 | 52.000 |
| L-Leucine | 61-90-5 | 52.000 |
| L-Lysine hydrochloride | 657-27-2 | 72.500 |
| L-Methionine | 63-68-3 | 15.000 |
| L-Phenylalanine | 63-91-2 | 32.000 |
| L-Proline | 147-85-3 | 11.500 |
| L-Serine | 56-45-1 | 10.500 |
| L-Threonine | 72-19-5 | 48.000 |
| L-Tryptophan | 73-22-3 | 10.000 |
| L-Tyrosine disodium salt dihydrate | 69847-15-0 | 51.900 |
| L-Valine | 72-18-4 | 46.000 |
| Component | CAS Number | mg/L |
|---|---|---|
| VITAMINS | ||
| Choline chloride | 67-48-1 | 1.000 |
| D-Ca-Pantothenate | 137-08-6 | 1.000 |
| Folic acid | 59-30-3 | 1.000 |
| Nicotinamide | 98-92-0 | 1.000 |
| Pyridoxal hydrochloride | 65-22-5 | 1.000 |
| Riboflavin | 83-88-5 | 0.100 |
| Thiamine hydrochloride | 67-03-8 | 1.000 |
| OTHERS | ||
| i-Inositol | 87-89-8 | 2.000 |
| D-Glucose | 50-99-7 | 4500.000 |
| HEPES | 7365-45-9 | 5958.000 |
| Phenol red sodium salt | 34487-61-1 | 11.000 |
Manufacturing & compliance
Every FluxMPS™ product is manufactured and released under a multi-layer quality system.
ISO 13485:2016 Quality Management
Manufactured under ISO 13485:2016–certified facilities. Final QA at Diagnocine R&D Center, Totowa, NJ, USA.
Ultrapure Type 1 Water
18.2 MΩ·cm feed water — controls trace-metal and organic-carbon contaminants.
ISO Class 5 Fill & Finish
Aseptic fill in validated ISO Class 5 (Class 100) laminar-flow workstations.
Micro-Batch Precision
Small-batch, per-lot tested with a Certificate of Analysis issued for every lot.
Endotoxin — USP <85> BET
Release specification < 0.05 EU/mL by LAL assay; controlled per manufacturing batch (see batch-level quality control note below).
Particulate — USP <788> Method 1
NMT 25/mL (≥10 µm), NMT 3/mL (≥25 µm); light obscuration.
Osmolality — USP <785>
Target: 235–275 mOsm/kg H2O.
Documentation & CoA
Full CoA with raw-material traceability available for every lot on request.
- Endotoxin — LAL assay, USP <85> Bacterial Endotoxins Test; assay sensitivity 0.005 EU/mL; release specification < 0.05 EU/mL
- pH, osmolality, conductivity, appearance and clarity
- Sterility
How DCP-MEMGH-QPB1X compares
FluxMPS™ DCP-MEMGH-QPB1X vs. conventional 0.22 µm–filtered MEM High Glucose + NEAA formulations.
| Parameter | DCP-MEMGH-QPB1X (FluxMPS™) | Conventional MEM High Glucose (0.22 µm filtered) | Standard DMEM (0.22 µm) |
|---|---|---|---|
| Grade | Microfluidics Suitable | Standard grade | Standard grade |
| MEM High Glucose + NEAA + HEPES-only — no L-Glutamine, no Pyruvate, no Bicarbonate | check_circle Yes | cancel No | cancel No |
| Final filtration pore size | 0.04 µm | 0.22 µm | 0.22 µm |
| Number of filtration stages | 4 (Quadruple-stage) | 1 | 1 |
| Mycoplasma-retentive filtration (0.1 µm) | check_circle Yes | cancel No | cancel No |
| Endotoxin (release specification) | FluxMPS™ — < 0.05 EU/mL | Corning classical liquid media — < 0.25 EU/mL Sigma-Aldrich DMEM complete medium — ≤ 2 EU/mL Gibco classical DMEM — Not specified (recorded per lot) |
|
| USP <788> Method 1 particulate tested | check_circle Yes | cancel No | cancel No |
| Water quality | Type 1, 18.2 MΩ·cm | Purified water | Purified water |
| Manufacturing QMS | ISO 13485:2016 | ISO 9001 or none | ISO 9001 or none |
| Microfluidic channel compatibility | check_circle Microfluidics Suitable | cancel Risk of clogging | cancel Risk of clogging |
| Custom formulation | check_circle Yes | cancel No | cancel No |
Comparison figures from published supplier specifications, accessed 2 September 2026. Suppliers that publish no numeric endotoxin specification are shown as "Not specified".
Frequently asked questions
Common questions about FluxMPS™ DCP-MEMGH-QPB1X.
Supporting literature
Key publications supporting MEM High Glucose + NEAA + 25mM HEPES in primary cell OoC applications.
- Eagle H. Amino acid metabolism in mammalian cell cultures. Science. 1959;130:432–437. doi:10.1126/science.130.3373.432
- Huh D, et al. Reconstituting organ-level lung functions on a chip. Science. 2010;328:1662–1668. doi:10.1126/science.1188302
- Bhatia SN, Ingber DE. Microfluidic organs-on-chips. Nat Biotechnol. 2014;32:760–772. doi:10.1038/nbt.2989
- Novak R, et al. Robotic fluidic coupling and interrogation of multiple vascularized organ chips. Nat Biomed Eng. 2020;4:407–420. doi:10.1038/s41551-019-0497-x
- Campisi M, et al. 3D self-organized microvascular model of the human blood-brain barrier. Biomaterials. 2018;180:117–129. doi:10.1016/j.biomaterials.2018.07.014
- Jang KJ, et al. Human kidney proximal tubule-on-a-chip. Integr Biol. 2013;5:1119–1129. doi:10.1039/c3ib40049b
- Schimek K, et al. Integrating biological vasculature into a multi-organ-chip microsystem. Lab Chip. 2013;13:3588–3598. doi:10.1039/c3lc50217a
- Luni C, et al. High-efficiency cellular reprogramming with microfluidics. Nat Methods. 2016;13:446–452. doi:10.1038/nmeth.3832
- Sung JH, et al. Microfabricated mammalian organ systems. Lab Chip. 2013;13:1201–1212. doi:10.1039/c3lc41017j



