Peg 258

Manufactured by Merck Group

PEG 258 is a polyethylene glycol-based product used in various laboratory applications. It serves as a solvent, dispersant, or lubricant. The core function of PEG 258 is to facilitate the solubilization, dispersion, or modification of other substances in laboratory settings.

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Lab products found in correlation

Peg 700, by Merck Group (2 mentions) Darocur 1173, by Novartis (1 mentions) Rhodamine b, by Merck Group (1 mentions) Darocur 1173, by Merck Group (1 mentions)

Spelling variants of this product

PEG-DA-258 (3 citations)

2 protocols using peg 258

Photocrosslinkable Microswimmer Fabrication

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The microswimmers were fabricated using a mixture of photo-crosslinkable
polyethylene glycol (PEG) and a photo-initiator. The mixture consisted of 40%
(v/v) PEG diacrylate with a molecular weight of 700 (PEG700, from
Sigma-Aldrich), 25% (v/v) PEG with a molecular weight of 258 (PEG 258, from
Sigma-Aldrich), 15% (v/v) photo-initiator
2-Hydroxy-2-methyl-1-phenyl-propan-1-one (Darocur 1173, from Ciba), 15% (v/v) TE
buffer (100 TE, from OmniPur), and 5% (w/v) fluorescein.

Ahmed D., Lu M., Nourhani A., Lammert P.E., Stratton Z., Muddana H.S., Crespi V.H, & Huang T.J. (2015). Selectively manipulable acoustic-powered microswimmers. Scientific Reports, 5, 9744.

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Photosensitive PEG Hydrogels for Microrobotics

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The photosensitive polymer mixture used in this project consists of photo-cross-linkable polyethylene glycols (PEGs) and a photo-initiator. The ratios of each component in the mixture were: 50% (v/v) PEG diacrylate with a molecular weight of 700 (PEG 700, Sigma-Aldrich), 30% (v/v) PEG diacrylate with a molecular weight of 258 (PEG 258, Sigma-Aldrich), 15% (v/v) TE buffer (100 TE, Sigma-Aldrich), and 5% (v/v) photo-initiator 2-hydroxy-2-methyl-1-phenyl-propan-1-one (Darocur 1173, Sigma-Aldrich) as photo-initiator. In addition, a droplet (~50 μl) each of fluorescent Rhodamine B (Sigma-Aldrich) and food dye were added to facilitate the focusing of the photomask and to achieve better contrast for the microrobots suspended in DI water.

Dillinger C., Nama N, & Ahmed D. (2021). Ultrasound-activated ciliary bands for microrobotic systems inspired by starfish. Nature Communications, 12, 6455.

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