Optical Features of Lanthanide Luminescent Hydrogel Based on Polyethylene Glycol with Silica Nanoparticles

2021 ◽  
Vol 13 (1) ◽  
pp. 123-130
Author(s):  
Zhihuan Zhao ◽  
Yao Wang ◽  
Haoyang Jiang ◽  
Jixian Liu ◽  
Linjun Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polyethylene Glycol ◽  
Silica Nanoparticles ◽  
Optoelectronic Devices ◽  
Hybrid Hydrogel ◽  
Peg Hydrogels ◽  
Polymer Hybrid ◽  
Hybrid Hydrogels ◽  
Potential Applications

Inorganic/polymer hybrid hydrogels generally exhibit excellent mechanical properties, while extra function include luminescence are extremely explored due to the further application in sensors and optoelectronic devices. Herein, we report the rare-earth (RE) complex/silica nanoparticles (SNs) luminescent hybrid polyethylene glycol (PEG) hydrogels showing stable luminescence. The hybrid hydrogels coordinated with RE (Eu3+) complex are fabricated via a convenient in situ photocrosslinked procedure. The coordination polymers showed red luminescent color under the 365 nm UV irradiation. Furthermore, the hybrid hydrogel exhibited long luminescence lifetime. These properties of hybrid luminescent hydrogel gave rise to a great improvement in the potential applications as a soft material.

Compatibilization of Polypropylene/Corn Starch Plasticized with Diethanol Amine

2012 ◽  
Vol 610-613 ◽  
pp. 475-479
Author(s):  
Jia Hao Qiu ◽  
Pin Gan Song ◽  
Shen Yuan Fu ◽  
Xian Xun Ge ◽  
Bing Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Corn Starch ◽  
Intermolecular Hydrogen Bonding ◽  
Starch Granules ◽  
Reactive Compatibilization ◽  
Hydrogen Bonding Interactions ◽  
Potential Applications ◽  
Plasticized Starch ◽  
Reduction Effect

In the presented paper, diethanol amine is employed to plasticize corn starch, and plasticized starch is incorporated into polypropylene to create semibio-based composites with the aid of compatibilizer, maleic anhydride-grafted PP (PPMA). Compared with PP/starch blend, the presence of diethanol amine changes the morphology and increases the plasticity of starch due to the reduction effect of intermolecular hydrogen bonding interactions. Adding PPMA could reduce the dispersed size of starch granules in the polymer matrix due to in situ reactive compatibilization. Addition of 30 wt% PPMA decreases the starch granules size from ~10 μm to ~5 μm, and increases the tensile strength from 16 MPa for PP/plasticized starch to 30 MPa, increased by 87.5%. Thus, as-created bio-composites with improved mechanical properties will find many potential applications such as packaging.

scholarly journals Swelling Dynamics of a DNA-Polymer Hybrid Hydrogel Prepared Using Polyethylene Glycol as a Porogen

Gels ◽  
2015 ◽  
Vol 1 (2) ◽  
pp. 219-234 ◽  
Author(s):  
Ming Gao ◽  
Kamila Gawel ◽  
Bjørn Stokke
Keyword(s):  
Polyethylene Glycol ◽  
Hybrid Hydrogel ◽  
Polymer Hybrid

scholarly journals Simple synthesis of gold-decorated silica nanoparticles by in situ precipitation method with new plasmonic properties

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Lizbet León Félix ◽  
Joaquin Martinez Porcel ◽  
Fermín Fidel Herrera Aragón ◽  
David Gregorio Pacheco-Salazar ◽  
Marcelo Henrique Sousa
Keyword(s):  
Surface Plasmon Resonance ◽  
Silica Nanoparticles ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Photothermal Therapy ◽  
Precipitation Method ◽  
Ambient Conditions ◽  
Simple Method ◽  
Potential Applications

AbstractWe describe a simple method for the preparation of gold-decorated silica (SiO2) nanoparticles (NPs) by the in situ precipitation method using simple BH4− ions reduction as a procedure, where BH4− ions are adsorbed onto PEI-functionalized SiO2 NPs for stabilizing and reducing gold ions onto PEI-SiO2 surface in water under ambient conditions. The result was 3-nm gold nanoshell NPs attached to SiO2 core (~ 75 nm) with a surface plasmon resonance (SPR) at ~ 680 nm. SPR band is associated with Au NP aggregates that arise from strong interparticle interaction. This is an alternative to the gold-seeding methods and the use of anionic gold species for the obtention of gold-decorated SiO2 NPs with an important red-shift in UV–Vis absorption and with potential applications in biosensors and photothermal therapy.

Multiscale Characterization of the Mechanical Properties of Fibrin and Polyethylene Glycol (PEG) Hydrogels for Tissue Engineering Applications

2021 ◽  
pp. 2100366
Author(s):  
Christian Jose Garcia Abrego ◽  
Lens Dedroog ◽  
Olivier Deschaume ◽  
Jolan Wellens ◽  
Anja Vananroye ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tissue Engineering ◽  
Polyethylene Glycol ◽  
Engineering Applications ◽  
Peg Hydrogels

Synthesis of flexible poly(l-lactide)-b-polyethylene glycol-b-poly(l-lactide) bioplastics by ring-opening polymerization in the presence of chain extender

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 423-429
Author(s):  
Yodthong Baimark ◽  
Wuttipong Rungseesantivanon ◽  
Natcha Prakymoramas
Keyword(s):  
Mechanical Properties ◽  
Polyethylene Glycol ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Chain Extender ◽  
Degree Of Crystallinity ◽  
Melt Flow ◽  
Gel Content ◽  
Ce Content

AbstractPoly(l-lactide)-b-polyethylene glycol-b-poly(l-lactide) (PLLA-PEG-PLLA) is found to be more flexible than PLLA due to the flexibility of PEG middle blocks. Melt flow and mechanical properties of PLLA-PEG-PLLA were improved through post melt blending with a chain extender (CE). In this work, in situ chain-extended PLLA-PEG-PLLAs were synthesized by ring-opening polymerization in the presence of Joncryl® CE. The influence of CE content (1.0, 2.0, and 4.0 phr) on the gel content, melt flow index (MFI), thermal properties, and mechanical properties of the obtained in situ chain-extended PLLA-PEG-PLLAs was investigated. The gel content of in situ chain-extended PLLA-PEG-PLLA increased while the MFI and degree of crystallinity significantly decreased with increasing CE content. The in situ chain-extended PLLA-PEG-PLLA with 1.0 phr CE showed the best tensile properties. The extensibility of in situ chain-extended PLLA-PEG-PLLA films decreased when the CE contents were higher than 1.0 phr. These in situ chain-extended PLLA-PEG-PLLA films can be used as highly flexible bioplastics.

Influence of in situ -generated silica nanoparticles on EPDM morphology, thermal, thermomechanical, and mechanical properties

2014 ◽  
Vol 36 (5) ◽  
pp. 825-833 ◽  
Author(s):  
T.H. Mokhothu ◽  
A.S. Luyt ◽  
D. Morselli ◽  
F. Bondioli ◽  
M. Messori
Keyword(s):  
Mechanical Properties ◽  
Silica Nanoparticles

scholarly journals Encapsulation of BSA in hybrid PEG hydrogels: stability and controlled release

RSC Advances ◽  
2021 ◽  
Vol 11 (49) ◽  
pp. 30887-30897
Author(s):  
Corine Tourné-Péteilh ◽  
Maeva Barège ◽  
Mathieu Lions ◽  
Jean Martinez ◽  
Jean-Marie Devoisselle ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Controlled Release ◽  
Bovine Serum Albumin ◽  
Sol Gel ◽  
Fine Tuning ◽  
Peg Hydrogels ◽  
Good Insight ◽  
Hybrid Hydrogels ◽  
Model Protein ◽  
Protein Bovine Serum Albumin

Silylated hybrid hydrogels of polyethylene glycol were designed to trap, stabilize and release a model protein (bovine serum albumin). Fine-tuning sol–gel reactions lead to sustained release of BSA over weeks, with good insight of protein stability.

scholarly journals Injectable, self-healing mesoporous silica nanocomposite hydrogels with improved mechanical properties

Nanoscale ◽  
2021 ◽  
Author(s):  
A. Zengin ◽  
J. P. O. Castro ◽  
P. Habibovic ◽  
S. H. van Rijt
Keyword(s):  
Mechanical Properties ◽  
Mesoporous Silica ◽  
Mechanical Strength ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Self Healing ◽  
Peg Hydrogels ◽  
Nanocomposite Hydrogels ◽  
Promising Strategy ◽  
Silica Nanocomposite

Nanocomposites created by dynamic crosslinking of mesoporous silica nanoparticles to PEG hydrogels represents a promising strategy to confer mechanical strength and rapid self-healing capabilities to hydrogels.

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