linear maleimide-functionalized poly(ethylene glycol) peg-mi Search Results


linear maleimide-functionalized poly(ethylene glycol) peg-mi  (JenKem Inc)
90
JenKem Inc linear maleimide-functionalized poly(ethylene glycol) peg-mi
A) Reducing-microenvironment- or light-sensitive hydrogels were formed by reacting B) an aryl-thiol end <t>functionalized</t> poly(ethylene glycol) macromolecular precursor (PEG-4-MPA) or a photodegradable aryl-thiol end functionalized PEG (PEG-4-PD-MPA) with a <t>maleimide-end</t> functionalized PEG (PEG-2-MI) and a maleimide functionalized low molecular heparin (Heparin-MI) via a Michael-type reaction in an aqueous microenvironment. Low molecular weight proteins, such as growth factors (FGF-2 in the present study), cytokines, and immunomodulatory agents, can be incorporated within the hydrogel during network formation utilizing heparin-associated receptor-ligand interactions for protein retention. C) Aryl-thiol based succinimide thioether linkages exchange with free thiols in solution leading to the formation of a relatively stable alkyl-thiol (i.e., cysteine) based succinimide thioether linkage, resulting in hydrogel degradation. D) The photolabile o-nitrobenzyl moieties undergo irreversible photoisomerization in response to cytocompatible doses of long wavelength UV or visible light, yielding ketone and amide products.
Linear Maleimide Functionalized Poly(ethylene Glycol) Peg Mi, supplied by JenKem Inc, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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A) Reducing-microenvironment- or light-sensitive hydrogels were formed by reacting B) an aryl-thiol end functionalized poly(ethylene glycol) macromolecular precursor (PEG-4-MPA) or a photodegradable aryl-thiol end functionalized PEG (PEG-4-PD-MPA) with a maleimide-end functionalized PEG (PEG-2-MI) and a maleimide functionalized low molecular heparin (Heparin-MI) via a Michael-type reaction in an aqueous microenvironment. Low molecular weight proteins, such as growth factors (FGF-2 in the present study), cytokines, and immunomodulatory agents, can be incorporated within the hydrogel during network formation utilizing heparin-associated receptor-ligand interactions for protein retention. C) Aryl-thiol based succinimide thioether linkages exchange with free thiols in solution leading to the formation of a relatively stable alkyl-thiol (i.e., cysteine) based succinimide thioether linkage, resulting in hydrogel degradation. D) The photolabile o-nitrobenzyl moieties undergo irreversible photoisomerization in response to cytocompatible doses of long wavelength UV or visible light, yielding ketone and amide products.

Journal: Advanced healthcare materials

Article Title: Controlling the release of small, bioactive proteins via dual mechanisms with therapeutic potential

doi: 10.1002/adhm.201700713

Figure Lengend Snippet: A) Reducing-microenvironment- or light-sensitive hydrogels were formed by reacting B) an aryl-thiol end functionalized poly(ethylene glycol) macromolecular precursor (PEG-4-MPA) or a photodegradable aryl-thiol end functionalized PEG (PEG-4-PD-MPA) with a maleimide-end functionalized PEG (PEG-2-MI) and a maleimide functionalized low molecular heparin (Heparin-MI) via a Michael-type reaction in an aqueous microenvironment. Low molecular weight proteins, such as growth factors (FGF-2 in the present study), cytokines, and immunomodulatory agents, can be incorporated within the hydrogel during network formation utilizing heparin-associated receptor-ligand interactions for protein retention. C) Aryl-thiol based succinimide thioether linkages exchange with free thiols in solution leading to the formation of a relatively stable alkyl-thiol (i.e., cysteine) based succinimide thioether linkage, resulting in hydrogel degradation. D) The photolabile o-nitrobenzyl moieties undergo irreversible photoisomerization in response to cytocompatible doses of long wavelength UV or visible light, yielding ketone and amide products.

Article Snippet: 4-arm amine-functionalized poly(ethylene glycol) (PEG-4-NH 2 , M n ~ 10,000 g/mol) and linear maleimide-functionalized poly(ethylene glycol) (PEG-MI, M n ~ 5,000 g/mol) were purchased from JenKem Technology USA Inc. (Allen, TX).

Techniques: Molecular Weight