Graphene oxide/polyaniline nanostructures: transformation of 2D sheet to 1D nanotube and in situ reduction

2012 ◽  
Vol 48 (88) ◽  
pp. 10862 ◽  
Author(s):  
Utpal Rana ◽  
Sudip Malik
Keyword(s):  
Graphene Oxide ◽  
In Situ Reduction

Physicochemical properties of geopolymer composites with DFT calculations of in-situ reduction of graphene oxide

2021 ◽  
Author(s):  
Amun Amri ◽  
Ahmad Ainun Najib ◽  
Monita Olivia ◽  
Mohammednoor Altarawneh ◽  
Aman Syam ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Dft Calculations ◽  
Physicochemical Properties ◽  
In Situ Reduction ◽  
Geopolymer Composites

scholarly journals Graphene Oxide-Embedded Extracellular Matrix- Derived Hydrogel as a Multiresponsive Platform for 3D Bioprinting Applications

2021 ◽  
Vol 7 (3) ◽  
Author(s):  
Laura Rueda-Gensini ◽  
Julian A Serna ◽  
Javier Cifuentes ◽  
Juan C Cruz ◽  
Carolina Muñoz-Camargo
Keyword(s):  
Graphene Oxide ◽  
Mechanical Stability ◽  
Light Exposure ◽  
Structural Characteristics ◽  
Elastic Response ◽  
Cellular Interaction ◽  
3D Bioprinting ◽  
In Situ Reduction ◽  
Crosslinking Degree

Decellularized extracellular matrices (dECMs) have shown enormous potential for the biofabrication of tissues due to their biomimetic properties that promote enhanced cellular interaction and tissue regeneration. However, biofabrication schemes requiring electrostimulation pose an additional constraint due to the insulating properties of natural materials. Here, we propose a methacryloyl-modified decellularized small intestine submucosa (SISMA) hydrogel, embedded with graphene oxide (GO) nanosheets, for extrusion-based 3D bioprinting applications that require electrostimulation. Methacryloyl biochemicalmodification is performed to enhance the mechanical stability of dECM constructs by mediating photo-crosslinking reactions, and a multistep fabrication scheme is proposed to harness the bioactive and hydrophilic properties of GO and electroconductive properties of reduced GO. For this, GO was initially dispersed in SISMA hydrogels by exploiting its hydrophilicity and protein adsorption capabilities, and in situ reduction was subsequently performed to confer electroconductive abilities. SISMA-GO composite hydrogels were successfully prepared with enhanced structural characteristics, as shown by the higher crosslinking degree and increased elastic response upon blue-light exposure. Moreover, GO was homogeneously dispersed without affecting photocrosslinking reactions and hydrogel shear-thinning properties. Human adipose-derived mesenchymal stem cells were successfully bioprinted in SISMA-GO with high cell viability after 1 week and in situ reduction of GO during this period enhanced the electrical conductivity of these nanostructures. This work demonstrates the potential of SISMA-GO bioinks as bioactive and electroconductive scaffolds for electrostimulation applications in tissue engineering and regenerative medicine.

Surface-conductive UHMWPE fibres via in situ reduction and deposition of graphene oxide

2018 ◽  
Vol 148 ◽  
pp. 167-176 ◽  
Author(s):  
Kui Wang ◽  
Mingqiao Liu ◽  
Changyuan Song ◽  
Lu Shen ◽  
Peng Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
In Situ Reduction

scholarly journals In-situ reduction by Joule heating and measurement of electrical conductivity of graphene oxide in a transmission electron microscope

2D Materials ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 031001
Author(s):  
Simon Hettler ◽  
David Sebastian ◽  
Mario Pelaez-Fernandez ◽  
Ana M Benito ◽  
Wolfgang K Maser ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Graphene Oxide ◽  
Electron Microscope ◽  
Transmission Electron Microscope ◽  
Joule Heating ◽  
In Situ Reduction ◽  
Transmission Electron
Sign in / Sign up

Export Citation Format

Share Document