scholarly journals Macromolecular crowding and hydrophobic effects on Fmoc-diphenylalanine hydrogel formation in PEG : water mixtures

2015 ◽  
Vol 3 (48) ◽  
pp. 9269-9276 ◽  
Author(s):  
Md. Musfizur Hassan ◽  
Adam D. Martin ◽  
Pall Thordarson
Keyword(s):  
Secondary Structure ◽  
Ethylene Glycol ◽  
Pure Water ◽  
Macromolecular Crowding ◽  
Poly Ethylene Glycol ◽  
Hydrophobic Effects ◽  
Structure Changes ◽  
Hydrogel Formation ◽  
Poly Ethylene ◽  
P Addition

Addition of water triggers gelation in (poly)ethylene glycol (PEG) solutions of peptide gelators, with or without drugs added. The gels are formed by a combination of macromolecular crowding and hydrophobic effects as evident by significant secondary structure changes when compared to gel formed from pure water.

The effect of alkyl side groups on the secondary structure and crystallization of poly(ethylene glycol)-block-polypeptide copolymers

Polymer ◽  
2013 ◽  
Vol 54 (9) ◽  
pp. 2466-2472 ◽  
Author(s):  
Kaixuan Ren ◽  
Yilong Cheng ◽  
Chaoliang He ◽  
Chunsheng Xiao ◽  
Gao Li ◽  
...  
Keyword(s):  
Secondary Structure ◽  
Ethylene Glycol ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Cell-size confinement effect on protein diffusion in crowded poly(ethylene)glycol solution

2018 ◽  
Vol 20 (13) ◽  
pp. 8842-8847 ◽  
Author(s):  
Chiho Watanabe ◽  
Miho Yanagisawa
Keyword(s):  
Ethylene Glycol ◽  
Cell Size ◽  
Molecular Diffusion ◽  
Macromolecular Crowding ◽  
Confinement Effect ◽  
Protein Diffusion ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Glycol Solution ◽  
Size Confinement

Micrometric membrane confinements and macromolecular crowding synergistically regulate molecular diffusion.

scholarly journals Poly(ethylene) glycol hydrogel based on oxa-Michael reaction: Precursor synthesis and hydrogel formation

2017 ◽  
Vol 12 (2) ◽  
pp. 02C414 ◽  
Author(s):  
Hanqi Wang ◽  
Fang Cheng ◽  
Wei He ◽  
Jiaohui Zhu ◽  
Gang Cheng ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Michael Reaction ◽  
Poly Ethylene Glycol ◽  
Precursor Synthesis ◽  
Hydrogel Formation ◽  
Poly Ethylene

Dual mode gelation behavior of silk fibroin microgel embedded poly(ethylene glycol) hydrogels

2016 ◽  
Vol 4 (26) ◽  
pp. 4574-4584 ◽  
Author(s):  
S. Ryu ◽  
H. H. Kim ◽  
Y. H. Park ◽  
C.-C. Lin ◽  
I. C. Um ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Silk Fibroin ◽  
Cross Linking ◽  
Poly Ethylene Glycol ◽  
Dual Mode ◽  
Hydrogel Formation ◽  
Gelation Behavior ◽  
Poly Ethylene

Hydrogel formation by more than two cross-linking mechanisms is preferred for the sophisticated manipulation of hydrogel properties.

Catechol- and ketone-containing multifunctional bottlebrush polymers for oxime ligation and hydrogel formation

2017 ◽  
Vol 8 (32) ◽  
pp. 4707-4715 ◽  
Author(s):  
Rimantas Slegeris ◽  
Brian A. Ondrusek ◽  
Hoyong Chung
Keyword(s):  
Ethylene Glycol ◽  
Ring Opening ◽  
Poly Ethylene Glycol ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization ◽  
Hydrogel Formation ◽  
Poly Ethylene

We report the synthesis of a highly-functional macromonomer, and subsequent crosslinkable poly(ethylene glycol) (PEG)-based bottlebrush polymers prepared via graft-through ring-opening metathesis polymerization (ROMP).

scholarly journals ‘Macromolecular crowding’ is a primary factor in the organization of the cytoskeleton

1992 ◽  
Vol 281 (2) ◽  
pp. 507-512 ◽  
Author(s):  
P Cuneo ◽  
E Magri ◽  
A Verzola ◽  
E Grazi
Keyword(s):  
Ethylene Glycol ◽  
Actin Filaments ◽  
Macromolecular Crowding ◽  
Cytoskeletal Proteins ◽  
Primary Factor ◽  
Poly Ethylene Glycol ◽  
Experimental Conditions ◽  
Actin Bundles ◽  
Poly Ethylene

We propose that, in the cell, the reversible conversion of actin filaments into actin bundles is controlled by the concentration of the macromolecules [we have employed poly(ethylene glycol) 6000 to mimic the macromolecules of the cell] as well as by the nature of the ancillary cytoskeletal proteins that decorate actin filaments. The proposal is based on the following evidence. (1) Under our experimental conditions the transition from filaments into bundles occurs at increasing concentrations of poly(ethylene glycol), with the following sequence: caldesmon-actin, 3%; filamin-actin, 4-5%; caldesmon-tropomyosin-actin, 5-7%; actin, 6-7%; tropomyosin-actin, 9-10%. (2) Under conditions of low osmoelastic stress [3% poly(ethylene glycol)], preformed caldesmon-actin bundles are dissociated by the addition of either tropomyosin or tropomyosin-decorated actin. The dissociation of the bundles promoted by the addition of tropomyosin-decorated actin is faster than that promoted by the addition of tropomyosin.

Block length affects secondary structure, nanoassembly and thermosensitivity of poly(ethylene glycol)-poly(l-alanine) block copolymers

2010 ◽  
Vol 20 (17) ◽  
pp. 3416 ◽  
Author(s):  
Yun Young Choi ◽  
Ji Hye Jang ◽  
Min Hee Park ◽  
Bo Gyu Choi ◽  
Bo Chi ◽  
...  
Keyword(s):  
Secondary Structure ◽  
Block Copolymers ◽  
Ethylene Glycol ◽  
Block Length ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene
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