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Key Documents

717142

Sigma-Aldrich

Poly(ethylene glycol) dithiol

average Mn 1,000

Synonym(s):

Polyethylene glycol, PEG dithiol

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About This Item

Linear Formula:
HSCH2CH2(OCH2CH2)nSH
UNSPSC Code:
12162002

form

solid

Quality Level

mol wt

average Mn 1,000

reaction suitability

reagent type: cross-linking reagent
reactivity: thiol reactive

mp

29-33 °C

Ω-end

thiol

α-end

thiol

polymer architecture

shape: linear
functionality: homobifunctional

storage temp.

2-8°C

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Application

Thiol functionalized nanoparticles may be used in mucoadhesive drug delivery, synthesis of dithiol terminated amphiphilic diblock copolymer, Bidentate dithiol-poly(ethylene glycol)-poly(d,l-lactide) (SH2-PEG-PDLLA). Gold nanoparticles may be easily functionalized with PEG dithiols by simple ligand exchange.

Other Notes

Molecular weight: Mn 900-1,100

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Nadeau J
Introduction to Experimental Biophysics: Biological Methods for Physical Scientists null
Jian Yang et al.
Biomacromolecules, 15(4), 1346-1354 (2014-03-13)
Thiol-modified nanoparticles have potential applications in mucoadhesive drug delivery and have been examined in this regard for topical ocular delivery. In this paper we provide a simple method for the synthesis of a dithiol terminated amphiphilic diblock copolymer. Bidentate dithiol-poly(ethylene

Articles

The use of hydrogel-based biomaterials for the delivery and recruitment of cells to promote tissue regeneration in the body is of growing interest. This article discussed the application of hydrogels in cell delivery and tissue regeneration.

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.

Devising biomaterial scaffolds that are capable of recapitulating critical aspects of the complex extracellular nature of living tissues in a threedimensional (3D) fashion is a challenging requirement in the field of tissue engineering and regenerative medicine.

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