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81300

Sigma-Aldrich

Poli(etilenglicol)

average MN 20,000, hydroxyl

Sinónimos:

PEG

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About This Item

Fórmula lineal:
H(OCH2CH2)nOH
Número de CAS:
25322-68-3
Número MDL:
MFCD00081839
Código UNSPSC:
12352104
ID de la sustancia en PubChem:
24887748
NACRES:
NA.23
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Nombre del producto

Poli(etilenglicol), average Mn 20,000

Formulario

flakes

Nivel de calidad

200

mol peso

average Mn 20,000

mp

63-66 °C

Ω-final

hydroxyl

α-final

hydroxyl

cadena SMILES

C(CO)O

InChI

1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2

Clave InChI

LYCAIKOWRPUZTN-UHFFFAOYSA-N

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Descripción general

El polietilenglicol (PEG) es un polímero hidrófilo. Puede sintetizarse fácilmente mediante la polimerización aniónica de apertura de anillo del óxido de etileno, en una gama de pesos moleculares y variedad de grupos finales. Cuando cuando establece enlaces cruzados en redes, el PEG puede tener un elevado contenido de agua, formando “hidrogeles”. La formación del hidrogel puede iniciarse mediante la reticulación del PEG por radiación ionizante o mediante la formación enlaces cruzados covalentes de macrómeros de PEG con extremos de cadena reactivos. El PEG es un material adecuado para aplicaciones biológicas ya que no desencadena una respuesta inmunitaria.

Aplicación

EL PEG se ha utilizado para modificar proteínas y péptidos terapéuticos para aumentar su solubilidad y reducir su toxicidad.

Los hidrogeles de PEG fotopolimerizados tienen aplicaciones emergentes en la fabricación de barreras bioactivas e inmunoaislantes para la encapsulación de células.[1]

Otras notas

Peso molecular: Mn 16,000-24,000

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
BCCM7806
BCCM0488
BCCK9194
BCCJ4738
BCCH3137

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Xu Zhang et al.
Langmuir : the ACS journal of surfaces and colloids, 28(40), 14330-14337 (2012-09-20)
Understanding the interface between DNA and nanomaterials is crucial for rational design and optimization of biosensors and drug delivery systems. For detection and delivery into cells, where high concentrations of cellular proteins are present, another layer of complexity is added.
Carrie F Olson-Manning
Molecular biology and evolution, 37(8), 2257-2267 (2020-03-21)
Metabolic networks are complex cellular systems dependent on the interactions among, and regulation of, the enzymes in the network. Although there is great diversity of types of enzymes that make up metabolic networks, the models meant to understand the possible
Chien-Chi Lin et al.
Biomaterials, 32(36), 9685-9695 (2011-09-20)
Hydrogels provide three-dimensional frameworks with tissue-like elasticity and high permeability for culturing therapeutically relevant cells or tissues. While recent research efforts have created diverse macromer chemistry to form hydrogels, the mechanisms of hydrogel polymerization for in situ cell encapsulation remain
Teagan E Bate et al.
Soft matter, 15(25), 5006-5016 (2019-06-06)
Self-organization of kinesin-driven, microtubule-based 3D active fluids relies on the collective dynamics of single microtubules. However, the connection between macroscopic fluid flows and microscopic motion of microtubules remains unclear. In this work, the motion of single microtubules was characterized by
Oliver J Harrison et al.
Cell reports, 30(8), 2655-2671 (2020-02-27)
Non-clustered δ1- and δ2-protocadherins, close relatives of clustered protocadherins, function in cell adhesion and motility and play essential roles in neural patterning. To understand the molecular interactions underlying these functions, we used solution biophysics to characterize binding of δ1- and
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Degradable Poly(ethylene glycol) Hydrogels for 2D and 3D Cell Culture

Progress in biotechnology fields such as tissue engineering and drug delivery is accompanied by an increasing demand for diverse functional biomaterials. One class of biomaterials that has been the subject of intense research interest is hydrogels, because they closely mimic the natural environment of cells, both chemically and physically and therefore can be used as support to grow cells. This article specifically discusses poly(ethylene glycol) (PEG) hydrogels, which are good for biological applications because they do not generally elicit an immune response. PEGs offer a readily available, easy to modify polymer for widespread use in hydrogel fabrication, including 2D and 3D scaffold for tissue culture. The degradable linkages also enable a variety of applications for release of therapeutic agents.

Versatile Cell Culture Scaffolds: Bio-orthogonal Click

Designing biomaterial scaffolds mimicking complex living tissue structures is crucial for tissue engineering and regenerative medicine advancements.

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Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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