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906808

Sigma-Aldrich

Water-soluble TPO based nanoparticle photoinitiator

contains ionic surfactant

Sinónimos:

Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, TPO

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About This Item

UNSPSC Code:
12352005
NACRES:
NA.25

form

powder or solid

color

white to off-white

SMILES string

O=P(C1=CC=CC=C1)(C(C2=C(C)C=C(C)C=C2C)=O)C3=CC=CC=C3

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Application

The water-dispersible photoinitiator nanoparticle contains 10% (w/w) of the type I photoinitiator diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide (TPO). TPO is highly efficient but water-insoluble. This water-soluble TPO based photoinitiator enables rapid 3D printing of structures prepared in aqueous solutions while bringing environmental advantages by using low-energy curing systems and avoiding the need for solvents.

The extinction coefficient of the new water-dispersible nanoparticles of TPO is more than 300 times larger than the best and most used commercially available water-soluble photoinitiator, Irgacure 2959. The TPO nanoparticles absorb significantly in the range from 385 to 420 nm, making them suitable for use in commercially available, low-cost, light-emitting diode-based 3D printers and UV-curing devices.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Repr. 2 - Skin Irrit. 2 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificados de análisis (COA)

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3D printing of responsive hydrogels for drug-delivery systems
Magdassi S. et al.
Journal of 3D printing in medicine, 1(4), 219-229 (2017)
Amol A Pawar et al.
Science advances, 2(4), e1501381-e1501381 (2016-04-07)
In the absence of water-soluble photoinitiators with high absorbance in the ultraviolet (UV)-visible range, rapid three-dimensional (3D) printing of hydrogels for tissue engineering is challenging. A new approach enabling rapid 3D printing of hydrogels in aqueous solutions is presented on

Artículos

Water-Soluble Photoinitiators

Water-dispersible photoinitiator nanoparticles enable novel formulations for 3D bioprinting, tissue engineering, and device manufacturing.

Water-Soluble Photoinitiators

Water-dispersible photoinitiator nanoparticles enable novel formulations for 3D bioprinting, tissue engineering, and device manufacturing.

Water-Soluble Photoinitiators

Water-dispersible photoinitiator nanoparticles enable novel formulations for 3D bioprinting, tissue engineering, and device manufacturing.

Water-Soluble Photoinitiators

Water-dispersible photoinitiator nanoparticles enable novel formulations for 3D bioprinting, tissue engineering, and device manufacturing.

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