Rudy Ghosh | NovaCentrix: What level of feature resolution and repeatability can be achieved with NovaCentrix's gold inks using aerosol printing?
00:05:08 - 00:05:18
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Summary of the clip:
What level of feature resolution and repeatability can be achieved with NovaCentrix's gold inks using aerosol printing?
NovaCentrix has been collaborating with equipment manufacturers like Optomec and Inksure to test and refine their gold inks for aerosol printing. This collaborative effort allows for thorough screening and testing, leading to significant advancements in feature resolution and process repeatability. The speaker highlights the ability to achieve sub-10 micron features in certain cases, demonstrating the potential for high-resolution applications. Furthermore, these fine features are not just achievable but also repeatable and reproducible, which is crucial for industrial applications.
The work with gold inks and aerosol printing has yielded promising results, particularly in achieving fine features with high repeatability. This is attributed to the close collaboration with equipment manufacturers and the in-house testing capabilities of NovaCentrix. The ability to create repeatable sub-10 micron features opens up possibilities for various advanced applications where precision and consistency are paramount.
The collaboration with universities, such as the University of Santiago de Compostela, further validates the capabilities of NovaCentrix's gold inks. The use of these inks in commemorative merchandise, specifically aerosol-printed gold on pens, showcases the aesthetic appeal and printability of the material. More importantly, the research conducted with these inks has led to the creation of high aspect ratio structures for biomedical applications, demonstrating the functional capabilities of the printed gold.
In this short video, you can learn:
* The feature resolution achievable with NovaCentrix gold inks using aerosol printing.
* The importance of collaboration with equipment manufacturers in ink development.
* The application of aerosol-printed gold in creating high aspect ratio structures for biomedical uses.
📋 **Clip Abstract:** This segment discusses the capabilities of NovaCentrix's gold inks in aerosol printing, highlighting the achievement of sub-10 micron features with high repeatability and reproducibility. It also touches on collaborative work with equipment manufacturers and universities, showcasing applications in commemorative merchandise and biomedical devices.
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#GoldInks, #AerosolPrinting, #Sub10MicronFeatures, #HighAspectRatio, #BiomedicalDevices, #AdvancedElectronics
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Advanced ink solutions designed for fine-line printing with high-aspect ratios
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00:03:05 - 00:04:36
Why are traditional copper and silver printed electronics failing in the next generation of biocompatible sensors?
Why are traditional copper and silver printed electronics failing in the next generation of biocompatible sensors?
In the world of printed electronics, moving away from bulk materials introduces severe physical challenges. While bulk copper is highly conductive, micro- and nano-scale porous networks of copper suffer from rapid oxidation, significantly reducing reliability. Silver inks have historically served as the benchmark for environmental stability and conductivity, but they still fall short when exposed to corrosive biological environments or placed in direct contact with living tissue.
To bridge this gap, gold nanoparticle inks have emerged as a disruptive material class. Gold offers unmatched oxidation resistance and superb chemical inertness, making it uniquely suited for high-reliability applications. Crucially, its inherent biocompatibility allows printed circuits to interface directly with biological systems without triggering adverse reactions or material degradation.
NovaCentrix's gold ink platform caters to these diverse processing demands by offering both high and low viscosity formulations. High-viscosity formulations are engineered for screen printing and direct-write dispensing, while low-viscosity dispersions are optimized for high-resolution aerosol jetting, inkjet printing, and flexographic systems, giving manufacturers a versatile additive toolset.
In this short video, you can learn:
* Why porous copper networks fail due to oxidation and how silver acts as an intermediate fix.
* The key chemical and biological advantages of gold nanoparticle inks over traditional materials.
* How formulation viscosity is tailored for screen printing, inkjet, and aerosol jet systems.
📋 **Clip Abstract** This clip explores the transition from copper and silver to gold nanoparticle inks for high-reliability printed electronics. It explains how gold overcomes oxidation challenges and enables direct biocompatibility for medical sensors and devices.
#GoldNanoparticleInks, #BiocompatibleSensors, #AerosolJetPrinting, #ConductiveInks, #PrintedElectronics, #Bioelectronics
00:11:55 - 00:13:30
Can printed additive electronics finally match the material performance of PVD and CVD vacuum-deposited thin films?
Can printed additive electronics finally match the material performance of PVD and CVD vacuum-deposited thin films?
Historically, achieving high-performance electronics required expensive, subtraction-based vacuum technologies like Physical Vapor Deposition (PVD) or Chemical Vapor Deposition (CVD). However, recent breakthroughs in gold nanoparticle ink formulation are allowing scientists to achieve comparable material qualities using purely additive, atmospheric printing processes. This shifts the economic and environmental paradigm of high-resolution device fabrication.
Through electrohydrodynamic jeting (EHJ) processes, this gold ink platform can achieve ultra-fine line widths down to sub-10 micron scales, approaching 5 microns in resolution. This extreme precision is coupled with versatile substrate compatibility, allowing successful directly-printed biosensors on low-cost materials like off-the-shelf glossy photo paper.
Furthermore, the resulting printed gold structures are stable enough to interface directly with live cells and tissue. This performance bridge—achieving sub-10 micron resolution, direct paper printing, and bio-compatibility—proves that liquid-phase nanoparticle sintering can now rival traditional cleanroom fabrication methods for advanced sensors and thermoelectric generators.
In this short video, you can learn:
* How printed gold inks achieve the thin-film material properties of PVD and CVD processes.
* The mechanics of EHJ printing to reach sub-10 micron (5-micron scale) resolutions.
* How low-cost substrates like glossy photo paper can host advanced electrochemical sensors.
📋 **Clip Abstract** This clip compares advanced gold nanoparticle printing to traditional vacuum deposition methods like PVD and CVD. It demonstrates how sub-10 micron printing resolution can be achieved additively on everyday substrates for high-performance bio-electronics.
#ElectrohydrodynamicJetting, #GoldNanoparticleInk, #LiquidPhaseSintering, #PaperElectronics, #AdditiveElectronics, #Bioelectronics
00:08:07 - 00:09:55
How can we print 3D micro-electrode arrays with aspect ratios greater than ten using gold nanoparticles?
How can we print 3D micro-electrode arrays with aspect ratios greater than ten using gold nanoparticles?
Aerosol jet printing, also known as nano jet printing, is redefining what is possible in digital additive manufacturing. By utilizing a non-contact, digital delivery system, this method enables the fabrication of ultra-fine features on non-planar and curved 3D surfaces. When coupled with advanced gold inks, it opens up new horizons for creating high-performance microstructures without the need for lithographic masks.
A striking demonstration of this capability is the layer-by-layer printing of high-aspect-ratio structures. By iteratively depositing concentric rings of gold nanoparticle ink, researchers have built dense, vertical arrays with aspect ratios exceeding ten. This unique printing dynamic allows for the creation of intricate hollow structures, mimicking silicon vias or micro-needles on demand.
These 3D micro-electrode arrays (MEAs) are printed directly onto thermoplastic polyurethane (TPU). TPU serves as an ideal substrate because it is highly flexible, stretchable, and biocompatible. The resulting gold-on-TPU arrays exhibit excellent cellular adhesion and growth support, as confirmed by immunofluorescence imaging, marking a major milestone for tissue engineering and bio-electronic interfaces.
In this short video, you can learn:
* The non-contact digital mechanics of aerosol jet printing on curved and 3D surfaces.
* How layer-by-layer additive deposition achieves aspect ratios greater than ten.
* The integration of gold nanoparticle arrays with flexible TPU for advanced bio-electronics.
📋 **Clip Abstract** This clip highlights the use of aerosol jet printing to fabricate high-aspect-ratio gold micro-electrode arrays. It shows how layer-by-layer digital deposition on flexible TPU substrates enables new avenues for biocompatible devices.
#AerosolJetPrinting, #GoldNanoparticles, #MicroElectrodeArrays, #ThermoplasticPolyurethane, #Bioelectronics, #FlexibleElectronics