Polyethylene Glycol Fusion of Nerve Accidents: Evaluation of the Method and Scientific Applicability
Traumatic peripheral nerve accidents current a specific problem handy surgeons as mechanisms of nerve-healing pose severe limitations to reaching full practical restoration. The lack of distal axonal segments by way of Wallerian degeneration results within the lack of neuromuscular junctions and irreversible muscle atrophy. Present strategies of restore rely upon the outgrowth of proximal nerve fibers following direct end-to-end restore or hole restore methods.
Investigational methods in nerve restore utilizing polyethylene glycol (PEG) nerve fusion have been proven to bypass Wallerian degeneration by instantly restoring nerve axonal continuity, thus leading to a speedy and extra full practical restoration. The aim of this text is to evaluate the present literature surrounding this novel approach for traumatic nerve restore, paying explicit consideration to the underlying physiology of nerve therapeutic and the present functions of PEG fusion within the laboratory and scientific setting. This text additionally serves to establish areas of future investigation to additional set up validity and feasibility and encourage the interpretation of PEG fusion into scientific use.

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Polyethylene glycol 8000 |
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GC0902-500G | Glentham Life Sciences | 500 g | EUR 74.4 |
Polyethylene glycol 6000 |
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GC2342-100G | Glentham Life Sciences | 100 g | EUR 52.8 |
Polyethylene glycol 6000 |
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GC2342-1KG | Glentham Life Sciences | 1 kg | EUR 74.4 |
Polyethylene glycol 6000 |
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GC2342-500G | Glentham Life Sciences | 500 g | EUR 58.8 |
Polyethylene glycol 400 |
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GC3481-100G | Glentham Life Sciences | 100 g | EUR 49.2 |
Polyethylene glycol 400 |
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GC3481-1KG | Glentham Life Sciences | 1 kg | EUR 78 |
Polyethylene glycol 400 |
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GC3481-250G | Glentham Life Sciences | 250 g | EUR 55.2 |
Polyethylene glycol 400 |
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GC3481-500G | Glentham Life Sciences | 500 g | EUR 63.6 |
Polyethylene glycol 400 |
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GC3481-5KG | Glentham Life Sciences | 5 kg | EUR 183.6 |
Polyethylene glycol 300 |
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GC9998-100G | Glentham Life Sciences | 100 g | EUR 48 |
Polyethylene glycol 300 |
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GC9998-1KG | Glentham Life Sciences | 1 kg | EUR 74.4 |
Polyethylene glycol 300 |
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GC9998-250G | Glentham Life Sciences | 250 g | EUR 52.8 |
Polyethylene glycol 300 |
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GC9998-500G | Glentham Life Sciences | 500 g | EUR 62.4 |
Polyethylene glycol 300 |
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GC9998-5KG | Glentham Life Sciences | 5 kg | EUR 170.4 |
Polyethylene glycol 4000 |
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GX6931-100G | Glentham Life Sciences | 100 g | EUR 52.8 |
Polyethylene glycol 4000 |
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GX6931-1KG | Glentham Life Sciences | 1 kg | EUR 74.4 |
Polyethylene glycol 4000 |
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GX6931-500G | Glentham Life Sciences | 500 g | EUR 58.8 |
Polyethylene Glycol - 200 |
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S-3126 | Scientific Laboratory Supplies | 1ML | EUR 38.76 |
Polyethylene Glycol - 400 |
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S-3127 | Scientific Laboratory Supplies | 1ML | EUR 77.52 |
Polyethylene Glycol - 600 |
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S-3128 | Scientific Laboratory Supplies | 1ML | EUR 38.76 |
Polyethylene Glycol (PEG) Antibody |
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20-abx132170 | Abbexa |
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Polyethylene Glycol (PEG) Antibody |
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abx021053-100ug | Abbexa | 100 ug | EUR 1045.2 |
Polyethylene Glycol (PEG) Antibody |
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abx021054-100ug | Abbexa | 100 ug | EUR 1045.2 |
PEG 4000 (Polyethylene glycol) |
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PB0431 | Bio Basic | 500g | EUR 75.66 |
PEG 6000 (Polyethylene glycol) |
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PB0432 | Bio Basic | 500g | EUR 75.66 |
PEG 8000 (Polyethylene glycol) |
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PB0433 | Bio Basic | 500g | EUR 75.66 |
PEG Antibody / Polyethylene Glycol |
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R20194-100UG | NSJ Bioreagents | 100ug | EUR 489 |
PEG Antibody / Polyethylene Glycol |
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R20194BTN-50UG | NSJ Bioreagents | 50ug | EUR 489 |
BSA Conjugated Polyethylene Glycol (PEG) |
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4-CPX163Ge11 | Cloud-Clone |
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Description: Recombinant Pan-species Polyethylene Glycol expressed in: E.coli |
OVA Conjugated Polyethylene Glycol (PEG) |
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4-CPX163Ge21 | Cloud-Clone |
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Description: Recombinant Pan-species Polyethylene Glycol expressed in: E.coli |
Polyethylene Glycol (PEG) Antibody (Biotin) |
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abx021052-005mg | Abbexa | 0.05 mg | EUR 978 |
Polyethylene Glycol (PEG) ELISA Kit |
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20-abx258764 | Abbexa |
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Polyethylene Glycol (PEG) Protein (BSA) |
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20-abx651925 | Abbexa |
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Polyethylene Glycol (PEG) Protein (OVA) |
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20-abx651926 | Abbexa |
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Polyethylene Glycol (PEG) CLIA Kit |
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20-abx490560 | Abbexa |
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General Polyethylene Glycol (PEG) ELISA Kit |
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CEX163Ge-10x96wellstestplate | Cloud-Clone | 10x96-wells test plate | EUR 7248.6 |
Description: This is Competitive Enzyme-linked immunosorbent assay for detection of General Polyethylene Glycol (PEG) in serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids. |
General Polyethylene Glycol (PEG) ELISA Kit |
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CEX163Ge-1x48wellstestplate | Cloud-Clone | 1x48-wells test plate | EUR 702.12 |
Description: This is Competitive Enzyme-linked immunosorbent assay for detection of General Polyethylene Glycol (PEG) in serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids. |
General Polyethylene Glycol (PEG) ELISA Kit |
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CEX163Ge-1x96wellstestplate | Cloud-Clone | 1x96-wells test plate | EUR 951.6 |
Description: This is Competitive Enzyme-linked immunosorbent assay for detection of General Polyethylene Glycol (PEG) in serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids. |
General Polyethylene Glycol (PEG) ELISA Kit |
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CEX163Ge-5x96wellstestplate | Cloud-Clone | 5x96-wells test plate | EUR 3922.2 |
Description: This is Competitive Enzyme-linked immunosorbent assay for detection of General Polyethylene Glycol (PEG) in serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids. |
General Polyethylene Glycol (PEG) ELISA Kit |
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4-CEX163Ge | Cloud-Clone |
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Description: Enzyme-linked immunosorbent assay based on the Competitive Inhibition method for detection of General Polyethylene Glycol (PEG) in samples from serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids with no significant corss-reactivity with analogues from other species. |
D-alpha-Tocopherol polyethylene glycol succinate |
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GK2339-25G | Glentham Life Sciences | 25 g | EUR 180 |
D-alpha-Tocopherol polyethylene glycol succinate |
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GK2339-5G | Glentham Life Sciences | 5 g | EUR 84 |
General Polyethylene Glycol ELISA Kit (PEG) |
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RK00701 | Abclonal | 96 Tests | EUR 687.6 |
High Sensitivity Polyethylene Glycol (PEG) ELISA Kit |
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DEIA6158 | Creative Diagnostics | 96T | EUR 1398 |
Description: High Sensitivity Polyethylene Glycol (PEG) ELISA Kit is High Sensitivity ELISA for the Measurement of PEG and PEGylated Proteins. |
ELISA kit for General PEG (Polyethylene Glycol) |
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ELK8264 | ELK Biotech | 1 plate of 96 wells | EUR 446.4 |
Description: A competitive Inhibition ELISA kit for detection of Polyethylene Glycol from General in samples from blood, serum, plasma, cell culture fluid and other biological fluids. |
Polyethylene Glycol (PEG) Polyclonal Antibody (Pan-species) |
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4-PAX163Ge01 | Cloud-Clone |
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Description: A Rabbit polyclonal antibody against Pan-species Polyethylene Glycol (PEG) |
Polyethylene Glycol (PEG) Polyclonal Antibody (Pan-species), APC |
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4-PAX163Ge01-APC | Cloud-Clone |
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Description: A Rabbit polyclonal antibody against Pan-species Polyethylene Glycol (PEG). This antibody is labeled with APC. |
Polyethylene Glycol (PEG) Polyclonal Antibody (Pan-species), Biotinylated |
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4-PAX163Ge01-Biotin | Cloud-Clone |
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Description: A Rabbit polyclonal antibody against Pan-species Polyethylene Glycol (PEG). This antibody is labeled with Biotin. |
Polyethylene Glycol (PEG) Polyclonal Antibody (Pan-species), Cy3 |
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4-PAX163Ge01-Cy3 | Cloud-Clone |
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Description: A Rabbit polyclonal antibody against Pan-species Polyethylene Glycol (PEG). This antibody is labeled with Cy3. |
Polyethylene Glycol (PEG) Polyclonal Antibody (Pan-species), FITC |
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4-PAX163Ge01-FITC | Cloud-Clone |
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Description: A Rabbit polyclonal antibody against Pan-species Polyethylene Glycol (PEG). This antibody is labeled with FITC. |
Polyethylene Glycol (PEG) Polyclonal Antibody (Pan-species), HRP |
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4-PAX163Ge01-HRP | Cloud-Clone |
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Description: A Rabbit polyclonal antibody against Pan-species Polyethylene Glycol (PEG). This antibody is labeled with HRP. |
Polyethylene Glycol (PEG) Polyclonal Antibody (Pan-species), PE |
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4-PAX163Ge01-PE | Cloud-Clone |
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Description: A Rabbit polyclonal antibody against Pan-species Polyethylene Glycol (PEG). This antibody is labeled with PE. |
Polyethylene glycol 4000, BP, Ph. Eur., USP/NF grade |
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GC0009-1KG | Glentham Life Sciences | 1 kg | EUR 81.6 |
Polyethylene glycol 300, BP, Ph. Eur., USP/NF grade |
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GC0220-1L | Glentham Life Sciences | 1 l | EUR 88.8 |
Polyethylene glycol 400, BP, Ph. Eur., USP/NF grade |
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GC0231-1L | Glentham Life Sciences | 1 l | EUR 79.2 |
Polyethylene glycol 8000, BP, Ph. Eur., USP/NF grade |
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GC2100-1KG | Glentham Life Sciences | 1 kg | EUR 94.8 |
Polyethylene Glycol (PEG) Polyclonal Antibody (Pan-species), APC-Cy7 |
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4-PAX163Ge01-APC-Cy7 | Cloud-Clone |
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Description: A Rabbit polyclonal antibody against Pan-species Polyethylene Glycol (PEG). This antibody is labeled with APC-Cy7. |
Mouse Anti-PEG mAb [Anti-Polyethylene glycol monoclonal antibody] |
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57000 | AAT Bioquest | 50 ug | EUR 199 |
Fluorescein aldehyde [5-FAM aldehyde] |
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9000 | AAT Bioquest | 5 mg | EUR 318 |
Diethylene glycol |
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abx184672-5g | Abbexa | 5 g | EUR 226.8 |
Ethylene glycol |
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20-abx184690 | Abbexa |
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Propranolol glycol |
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B6474-100 | ApexBio | 100 mg | EUR 321.6 |
Triethylene glycol |
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HY-W017440 | MedChemExpress | 100mg | EUR 129.6 |
Tetraethylene glycol |
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GK2619-100G | Glentham Life Sciences | 100 g | EUR 57.6 |
Diethylene glycol |
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GK2667-100ML | Glentham Life Sciences | 100 ml | EUR 50.4 |
Ethylene glycol |
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GK7641-100ML | Glentham Life Sciences | 100 ml | EUR 45.6 |
Ethylene glycol |
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GK7641-1L | Glentham Life Sciences | 1 l | EUR 64.8 |
Ethylene glycol |
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GK7641-500ML | Glentham Life Sciences | 500 ml | EUR 52.8 |
Ethylene glycol |
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GK7641-5L | Glentham Life Sciences | 5 l | EUR 136.8 |
Dipropylene glycol |
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GD3668-100G | Glentham Life Sciences | 100 g | EUR 55.2 |
Dipropylene glycol |
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GD3668-250G | Glentham Life Sciences | 250 g | EUR 60 |
Dipropylene glycol |
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GD3668-25G | Glentham Life Sciences | 25 g | EUR 50.4 |
Hexylene glycol |
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HY-B0903 | MedChemExpress | 100mg | EUR 142.8 |
Glycol salicylate |
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HY-B2208 | MedChemExpress | 5g | EUR 142.8 |
Ethylene glycol |
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ED0199 | Bio Basic | 250ml | EUR 70.44 |
Propylene Glycol |
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PRG3800 | ScyTek Laboratories | 1 Gal. | EUR 254.4 |
Propylene Glycol |
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PRG500 | ScyTek Laboratories | 500 ml | EUR 105.6 |
Propylene Glycol |
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PRG999 | ScyTek Laboratories | 1000 ml | EUR 147.6 |
Sclareol Glycol |
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TBZ2734 | ChemNorm | 20mg | Ask for price |
Dipropylene Glycol |
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S-1751 | Scientific Laboratory Supplies | 1ML | EUR 72.96 |
Ethylene glycol |
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S-1952 | Scientific Laboratory Supplies | 1ML | EUR 39.9 |
Propylene Glycol |
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S-3212 | Scientific Laboratory Supplies | 1ML | EUR 38.76 |
Tetraethylene glycol |
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S-3457 | Scientific Laboratory Supplies | 1ML | EUR 143.64 |
Tetrapropylene glycol |
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S-3471 | Scientific Laboratory Supplies | 1ML | EUR 83.22 |
Triethylene glycol |
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S-3703 | Scientific Laboratory Supplies | 1ML | EUR 90.06 |
Tripropylene Glycol |
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S-3766 | Scientific Laboratory Supplies | 1ML | EUR 93.48 |
Diethylene glycol |
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S-3848 | Scientific Laboratory Supplies | 1ML | EUR 90.06 |
Poly(propylene glycol) |
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abx186548-1kg | Abbexa | 1 kg | EUR 360 |
1-Azidohexaethylene Glycol |
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20-abx186618 | Abbexa |
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Propylene glycol, 99% |
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GK2653-100ML | Glentham Life Sciences | 100 ml | EUR 44.4 |
Propylene glycol, 99% |
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GK2653-1L | Glentham Life Sciences | 1 l | EUR 58.8 |
Propylene glycol, 99% |
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GK2653-2500ML | Glentham Life Sciences | 2500 ml | EUR 81.6 |
Propylene glycol, 99% |
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GK2653-250ML | Glentham Life Sciences | 250 ml | EUR 49.2 |
Propylene glycol, 99% |
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GK2653-500ML | Glentham Life Sciences | 500 ml | EUR 52.8 |
Propylene glycol, 99% |
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GK2653-5L | Glentham Life Sciences | 5 l | EUR 118.8 |
Ethylene glycol dimethacrylate |
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S-1954 | Scientific Laboratory Supplies | 1ML | EUR 71.82 |
Triethylene glycol dimethacrylate |
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S-3704 | Scientific Laboratory Supplies | 1ML | EUR 71.82 |
EP Reagent Biuret Reagent |
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1011601 | Scientific Laboratory Supplies | 1L | EUR 42.18 |
EP Reagent Iodoplatinate Reagent |
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1046300 | Scientific Laboratory Supplies | 200ML | EUR 360.24 |
EP Reagent Methoxyphenylacetic Reagent |
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1053601 | Scientific Laboratory Supplies | 100ML | EUR 354.54 |
EP Reagent Molybdovanadic Reagent |
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1056700 | Scientific Laboratory Supplies | 100ML | EUR 42.18 |
EP Reagent Phosphomolybdotungstic Reagent |
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1065000 | Scientific Laboratory Supplies | 100ML | EUR 161.88 |
D2 Lamp Series 2 1000 to 9000 |
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LDCEC111 | Scientific Laboratory Supplies | EACH | EUR 583.68 |
Inoculation Loop 10ul Light Blue PK 9000 |
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OS10-02 | Scientific Laboratory Supplies | PK9000 | EUR 550.48 |
Kinesis Piston Varian 9000 9010 9012 230 |
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CHR6311 | Scientific Laboratory Supplies | EACH | EUR 322.62 |
EP Reagent Sulfomolybdic Reagent R3 |
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1086500 | Scientific Laboratory Supplies | 1L | EUR 287.28 |
Azlon 150ml Scoop Polyethylene |
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SCO1030 | Scientific Laboratory Supplies | PK5 | EUR 27.44 |
Azlon 1000ml Scoop Polyethylene |
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SCO1032 | Scientific Laboratory Supplies | PK5 | EUR 53.69 |
Azlon 1500ml Scoop Polyethylene |
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SCO1034 | Scientific Laboratory Supplies | EACH | EUR 23.58 |
Snap cap 8mm Polyethylene |
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8PEC1 | Scientific Laboratory Supplies | PK1000 | EUR 84.36 |
Select Cap 16mm Polyethylene |
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TUB0124 | Scientific Laboratory Supplies | PK1000 | EUR 53.35 |
Heptaethylene Glycol Monomethyl Ether |
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20-abx180777 | Abbexa |
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Dodecaethylene Glycol Monomethyl Ether |
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20-abx186429 | Abbexa |
|
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O-Methyl-Undecaethylene Glycol |
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20-abx186536 | Abbexa |
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Triethylene glycol monooctyl ether |
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GK6592-1G | Glentham Life Sciences | 1 g | EUR 180 |
Triethylene glycol monooctyl ether |
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GK6592-5G | Glentham Life Sciences | 5 g | EUR 514.8 |
Dipropylene glycol monomethyl ether |
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GK6793-1L | Glentham Life Sciences | 1 l | EUR 74.4 |
Dipropylene glycol monomethyl ether |
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GK6793-500ML | Glentham Life Sciences | 500 ml | EUR 58.8 |
Nonaethylene glycol monododecyl ether |
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HY-108294 | MedChemExpress | 100mg | EUR 129.6 |
Neopentyl glycol diglycidyl ether |
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GX9266-100ML | Glentham Life Sciences | 100 ml | EUR 64.8 |
Neopentyl glycol diglycidyl ether |
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GX9266-1L | Glentham Life Sciences | 1 l | EUR 204 |
Neopentyl glycol diglycidyl ether |
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GX9266-25ML | Glentham Life Sciences | 25 ml | EUR 52.8 |
Neopentyl glycol diglycidyl ether |
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GX9266-500ML | Glentham Life Sciences | 500 ml | EUR 132 |
Poly(propylene glycol) - 1000 |
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S-3131 | Scientific Laboratory Supplies | 1ML | EUR 75.24 |
Dipropylene glycol methyl ether |
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S-4174 | Scientific Laboratory Supplies | 1ML | EUR 74.1 |
Bluing Reagent |
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BRT030 | ScyTek Laboratories | 30 ml | EUR 72 |
Bluing Reagent |
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BRT125 | ScyTek Laboratories | 125 ml | EUR 75.6 |
Bluing Reagent |
|||
BRT3800 | ScyTek Laboratories | 1 Gal. | EUR 220.8 |
Bluing Reagent |
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BRT500 | ScyTek Laboratories | 500 ml | EUR 91.2 |
Bluing Reagent |
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BRT999 | ScyTek Laboratories | 1000 ml | EUR 105.6 |
BOP reagent |
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5-02141 | CHI Scientific | 25g | Ask for price |
BOP reagent |
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5-02142 | CHI Scientific | 100g | Ask for price |
Chymase reagent |
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30C-CP1129 | Fitzgerald | 5 units | EUR 2622 |
Description: Purified native Human Chymase reagent |
BOP reagent |
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A7015-100000 | ApexBio | 100 g | EUR 240 |
Description: A peptide coupling reagent. Can be used in the preparation of phenyl esters of amino acids which have been shown to be valuable as blocked derivatives of amino acids in the field of peptide synthesis. |
BOP reagent |
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A7015-25000 | ApexBio | 25 g | EUR 135.6 |
Description: A peptide coupling reagent. Can be used in the preparation of phenyl esters of amino acids which have been shown to be valuable as blocked derivatives of amino acids in the field of peptide synthesis. |
Bradford reagent |
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BDE641 | Bio Basic | 100ml | EUR 73.21 |
Beaucage reagent |
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HY-100951 | MedChemExpress | 10mM/1mL | EUR 151.2 |
Ninhydrin Reagent |
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MIC6746 | Scientific Laboratory Supplies | EACH | EUR 31.12 |
Nessler Reagent |
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NESSR | Scientific Laboratory Supplies | 500ML | EUR 148.2 |
Phosphate Reagent |
|||
106199 | Scientific Laboratory Supplies | PK100 | EUR 61.29 |
Chromium Reagent |
|||
1206699 | Scientific Laboratory Supplies | EACH | EUR 141.72 |
Thioacetamide Reagent |
|||
THIOR01 | Scientific Laboratory Supplies | 100ML | EUR 78.66 |
MTS Reagent |
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2808-1000 | Biovision | each | EUR 1188 |
MTS Reagent |
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2808-250 | Biovision | each | EUR 438 |
MTT Reagent |
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2809-1G | Biovision | each | EUR 216 |
MTT Reagent |
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2809-5G | Biovision | each | EUR 652.8 |
Traut's Reagent |
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2330-1000 | Biovision | each | EUR 418.8 |
Traut's Reagent |
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2330-500 | Biovision | each | EUR 248.4 |
BURGESS REAGENT |
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702010 | Survival Technologies | each | Ask for price |
Kinesis Piston Seal Varian 9000 9010 9012 230 (Black) |
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CHR6439 | Scientific Laboratory Supplies | EACH | EUR 42.18 |
Kinesis Piston Seal Varian 9000 9010 9012 230 (Yellow) |
|||
CHR6440 | Scientific Laboratory Supplies | EACH | EUR 28.5 |
Jerrican Polyethylene 5L not Stackable |
|||
FB59633 | Scientific Laboratory Supplies | EACH | EUR 5.47 |
TELOS 20um Polyethylene Frits 70ml |
|||
810-0000-027T | Scientific Laboratory Supplies | PK100 | EUR 81.92 |
Phthalates in Polyethylene Standard - 5g |
|||
CRM-PE001 | Scientific Laboratory Supplies | 5G | EUR 223.44 |
Polyethylene QC Standard Blank - 5g |
|||
CRM-PEBLK | Scientific Laboratory Supplies | 5G | EUR 53.58 |
Polyethylene support for 40 slides |
|||
DD37778 | Scientific Laboratory Supplies | EACH | EUR 95.76 |
Select Cap 12mm Polyethylene Natural |
|||
TUB0122 | Scientific Laboratory Supplies | PK2000 | EUR 71.82 |
C1orf83 antibody |
|||
70R-9000 | Fitzgerald | 50 ug | EUR 560.4 |
Description: Affinity purified rabbit polyclonal C1orf83 antibody |
EIF2AK1 Blocking Peptide |
|||
33R-9000 | Fitzgerald | 100 ug | EUR 216 |
Description: A synthetic peptide for use as a blocking control in assays to test for specificity of EIF2AK1 antibody, catalog no. 70R-3425 |
Hexaethylene glycol phosphoramidite, 1 g |
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46160 | Lumiprobe | 1 g | EUR 223.2 |
Preparation and Properties of Antibacterial Polydopamine and Nano-Hydroxyapatite Modified Polyethylene Terephthalate Synthetic Ligament
- As a consequence of its nice biomechanical property, the polyethylene terephthalate (PET) synthetic ligament has turn into some of the promising allografts for anterior cruciate ligament (ACL) reconstruction. Nevertheless, due to its chemical and organic inertness, PET isn’t a popular scaffold materials for osteoblast progress, which promotes the ligament-bone therapeutic.
- In the meantime, in consideration of prevention of potential an infection, the prophylactic injection of antibiotic was used as a post-operative customary process but additionally has the rising threat of bacterial resistance.
- To face these two contradictions, on this article we coated a polydopamine (PDA) nano-layer on the PET ligament and used the coating because the adhesion interlayer to introduce nano-hydroxyapatite (nHA) and silver atoms to the floor of PET ligament.
- Due to the gentle self-polymerization response of dopamine, the thermogravity evaluation (TGA), Raman spectrum, and tensile check outcomes present that the modification process don’t have any detrimental results on the chemical stability and mechanical properties of the PET.
- The outcomes of NIH3T3 cell tradition present that the PDA and nHA may successfully enhance the biocompatibility of PET synthetic ligament for fibroblast progress, and staphylococcus aureus antibacterial check outcomes present that the Ag atom supplied an antibacterial impact for PET ligament.
- As proven on this paper, the nano-PDA coating modification process couldn’t solely protect the benefits of PET but additionally introduce new efficiency traits to PET, which opens the door for additional functionalization of PET synthetic ligament for its superior growth and utility.
Ecotoxicological results of various dimension ranges of industrial-grade polyethylene and polypropylene microplastics on earthworms Eisenia fetida
- The results of microplastics (MPs) on terrestrial organisms stay poorly understood, regardless that soil is a crucial MPs sink. On this examine, the earthworms Eisenia fetida had been uncovered to 0.25% (w/w) of industrial-grade high-density polyethylene (HDPE, 28-145, 133-415 and 400-1464 μm) and polypropylene (PP, 8-125, 71-383 and 761-1660 μm) MPs in an agricultural soil for 28 d.
- The outcomes confirmed that HDPE and PP MPs with completely different dimension ranges may be ingested by E. fetida. Publicity to completely different dimension ranges of HDPE and PP MPs altered the actions of superoxide dismutase, catalase and glutathione S-transferase and induced a rise within the 8-hydroxy-2′-deoxyguanosine stage in E. fetida, suggesting that MPs-induced oxidative stress occurred in E. fetida.
- A dimension and type-dependent toxicity of MPs to E. fetida was demonstrated by the built-in organic response index. As well as, to acquire detailed molecular info on the responses of E. fetida to MPs publicity, transcriptomic evaluation was carried out for E. fetida from HDPE (28-145 μm) and PP (8-125 μm) remedy teams. Transcriptomic evaluation recognized 34,937 and 28,494 differentially expressed genes within the HDPE and PP MPs therapies in contrast with the management, respectively.
- And, publicity to HDPE and PP MPs considerably disturbed a number of pathways carefully associated to neurodegeneration, oxidative stress and inflammatory responses in E. fetida. This examine gives essential info for the ecological threat evaluation of various dimension ranges and forms of industrial-grade MPs.
In the direction of bio-upcycling of polyethylene terephthalate
Over 359 million tons of plastics had been produced worldwide in 2018, with vital progress anticipated within the close to future, ensuing within the world problem of end-of-life administration. The current identification of enzymes that degrade plastics beforehand thought-about non-biodegradable opens up alternatives to steer the plastic recycling trade into the realm of biotechnology. Right here, the sequential conversion of post-consumer polyethylene terephthalate (PET) into two forms of bioplastics is offered: a medium chain-length polyhydroxyalkanoate (PHA) and a novel bio-based poly(amide urethane) (bio-PU).
PET movies are hydrolyzed by a thermostable polyester hydrolase yielding extremely pure terephthalate and ethylene glycol. The obtained hydrolysate is used straight as a feedstock for a terephthalate-degrading Pseudomonas umsongensis GO16, additionally developed to effectively metabolize ethylene glycol, to provide PHA. The pressure is additional modified to secrete hydroxyalkanoyloxy-alkanoates (HAAs), that are used as monomers for the chemo-catalytic synthesis of bio-PU. Briefly, a novel value-chain for PET upcycling is proven that circumvents the pricey purification of PET monomers, including technological flexibility to the worldwide problem of end-of-life administration of plastics.
Fatigue put on check evaluating vitamin-E-blended crosslinked polyethylene and traditional polyethylene in a Posterior Dynamic Stabilization System of the backbone within the laboratory
Background: Though synthetic joints utilizing polyethylene have been developed for varied joints, the event of Posterior Dynamic Stabilization system of the backbone utilizing polyethylene has proceeded at a a lot slower tempo. There aren’t any research which evaluate the abrasion resistance of vitamin-E-blended crosslinked polyethylene (VE) and traditional polyethylene (Virgin) within the spinal area. The aim of this examine was to match the damage resistance of VE and Virgin in a Posterior Dynamic Stabilization System of the backbone.
Strategies: Posterior Dynamic Stabilization System of the backbone makes use of a polyethylene ball as a sliding floor. A fatigue put on check was repeated as much as 1 million cycles at a velocity of ±5°, 1 Hz whereas the rod was being pulled at a load of 50 N. Balls had been in contrast utilizing VE and Virgin in 6 samples every. Ti-6AL-Four V (Ti 64) and Co-Cr-Mo (CoCr) rods had been used. Abrasion loss and form change of the polyethylene balls had been in contrast.
Outcomes: When Ti 64 was used because the rod, the common put on quantity was -0.01 mg (0.02 mg, 0.01 mg, -0.06 mg) for VE, and 0.23 mg (0.18 mg, 0.13 mg, 0.38 mg) for Virgin. When CoCr was used because the rod, the common put on quantity was 0.42 mg (0.71 mg, -0.06 mg, 0.61 mg) for VE, and 0.73 mg (0.72 mg, 0.70 mg, 0.76 mg) for Virgin. Most polyethylene samples confirmed indentations of 0.1 m or much less on the contact level with the set screw. Within the mixture of Virgin and CoCr, a white patch was noticed on the inside aspect of the polyethylene samples, with a most despair of 0.1 mm.
Conclusions: A fatigue put on check confirmed VE to be extra environment friendly in abrasion resistance than Virgin in a Posterior Dynamic Stabilization System of the backbone within the laboratory.
Quantitative evaluation of polyethylene terephthalate and polycarbonate microplastics in sediment collected from South Korea, Japan and the USA
Microplastics (MPs) have emerged as contaminants of public well being and environmental concern. Though research have reported the prevalence of MPs in sediment, quantitative willpower of polyethylene terephthalate (PET) and polycarbonate (PC) concentrations is proscribed. On this examine, marine coastal and freshwater sediment collected from varied places in South Korea, Japan and the USA had been analyzed for PET and PC MPs utilizing a depolymerization methodology of pattern preparation adopted by excessive efficiency liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) detection.
PET MPs had been present in floor sediments from South Korea (n = 20), Japan (n = 4) and the USA (n = 43) at concentrations (dry weight) within the ranges of <MQL-13,000,000 ng/g (median: 6600 ng/g), 3600-5400 ng/g (4400 ng/g) and <MQL-10,000 ng/g (<MQL), respectively. Equally, PC MPs had been discovered within the focus ranges of <MQL-140,000 ng/g (median: 290 ng/g, South Korea), 150-510 ng/g (100 ng/g, Japan) and <MQL-110,000 ng/g (160 ng/g, the USA).
Spatial evaluation of concentrations of PET and PC MPs in sediment from Lake Shihwa watershed in South Korea confirmed a reducing development with rising distance from inland level supply areas (Ansan industrial space). No distinct vertical profiles had been recorded for PET or PC MPs in sediment cores collected from Tokyo Bay (Japan) or inland lakes in Michigan (the USA). The measured concentrations of MPs in sediment present baseline information to guage future traits and for ecological threat evaluation.