Improved electrochemical detection of metals in biological samples using 3D-printed electrode: Chemical/electrochemical treatment exposes carbon-black conductive sites

2020 ◽  
Vol 335 ◽  
pp. 135688 ◽  
Author(s):  
Diego P. Rocha ◽  
André L. Squissato ◽  
Sarah M. da Silva ◽  
Eduardo M. Richter ◽  
Rodrigo A.A. Munoz
2021 ◽  
Author(s):  
Benadict Joseph Xavier ◽  
Umesh N ◽  
Sea-Fue Wang ◽  
Antolin Jesilaa Jesu Amalraj

The quantification of the neurotransmitter dopamine in human biological samples has gained more importance. A good antifouling, and highly selective electrode material is still in high demand. So, to resolve...


RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25702-25709 ◽  
Author(s):  
R. Karthik ◽  
Mani Govindasamy ◽  
Shen-Ming Chen ◽  
Tse-Wei Chen ◽  
J. Vinoth kumar ◽  
...  

An electrochemical sensor based on graphene oxide modified glassy carbon electrode for the determination of anti-cancer drug flutamide.


2021 ◽  
Vol MA2021-02 (57) ◽  
pp. 1858-1858
Author(s):  
Charuksha Walgama ◽  
Nicole Pollok ◽  
Lisa Boatner ◽  
Richard Crooks

Micromachines ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 46 ◽  
Author(s):  
Claudio Manganiello ◽  
David Naso ◽  
Francesco Cupertino ◽  
Orazio Fiume ◽  
Gianluca Percoco

The present research aims to exploit commercially available materials and machines to fabricate multilayer, topologically designed transducers, which can be embedded into mechanical devices, such as soft or rigid grippers. Preliminary tests on the possibility of fabricating 3D-printed transducers using a commercial conductive elastomeric filament, carbon black-filled thermoplastic polyurethane, are presented. The commercial carbon-filled thermoplastic polyurethane (TPU), analyzed in the present paper, has proven to be a candidate material for the production of 3D printed displacement sensors. Some limitations in fabricating the transducers from a 2.85 mm filament were found, and comparisons with 1.75 mm filaments should be conducted. Moreover, further research on the low repeatability at low displacements and the higher performance of the hollow structure, in terms of repeatability, must be carried out. To propose an approach that can very easily be reproduced, only commercial filaments are used.


Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 347 ◽  
Author(s):  
Shib Banerjee ◽  
Stephen Burbine ◽  
Nischay Kodihalli Shivaprakash ◽  
Joey Mead

Currently, material extrusion 3D printing (ME3DP) based on fused deposition modeling (FDM) is considered a highly adaptable and efficient additive manufacturing technique to develop components with complex geometries using computer-aided design. While the 3D printing process for a number of thermoplastic materials using FDM technology has been well demonstrated, there still exists a significant challenge to develop new polymeric materials compatible with ME3DP. The present work reports the development of ME3DP compatible thermoplastic elastomeric (TPE) materials from polypropylene (PP) and styrene-(ethylene-butylene)-styrene (SEBS) block copolymers using a straightforward blending approach, which enables the creation of tailorable materials. Properties of the 3D printed TPEs were compared with traditional injection molded samples. The tensile strength and Young’s modulus of the 3D printed sample were lower than the injection molded samples. However, no significant differences could be found in the melt rheological properties at higher frequency ranges or in the dynamic mechanical behavior. The phase morphologies of the 3D printed and injection molded TPEs were correlated with their respective properties. Reinforcing carbon black was used to increase the mechanical performance of the 3D printed TPE, and the balancing of thermoplastic elastomeric and mechanical properties were achieved at a lower carbon black loading. The preferential location of carbon black in the blend phases was theoretically predicted from wetting parameters. This study was made in order to get an insight to the relationship between morphology and properties of the ME3DP compatible PP/SEBS blends.


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