Rudy Ghosh | NovaCentrix: How does NovaCentrix approach customizing silver ink formulations to meet specific end-user requirements?
00:08:38 - 00:08:42
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How does NovaCentrix approach customizing silver ink formulations to meet specific end-user requirements?
The speaker transitions to discussing silver inks, a more conventional material system for NovaCentrix. A key aspect of their approach is working closely with end-users to customize ink formulations. This involves understanding the specific requirements of the application and tailoring the ink properties accordingly. The speaker suggests that even if an off-the-shelf ink is close to meeting the needs (e.g., 85% of the way there), NovaCentrix is willing to collaborate to provide a finalized, optimized solution.
This collaborative approach is particularly valuable in industries with rigorous requirements, such as the automotive sector. The speaker highlights instances where NovaCentrix has worked with automotive customers to fine-tune ink formulations to meet their specific performance criteria. This demonstrates a commitment to providing tailored solutions rather than simply offering generic products.
The speaker encourages potential customers to explore the available technical data sheets (TDS) on the NovaCentrix website and request samples for testing. This allows users to evaluate the performance of the inks in their specific applications. Furthermore, the speaker reiterates the willingness of NovaCentrix to provide customized solutions based on the user's testing and feedback, emphasizing their commitment to meeting individual customer needs.
In this short video, you can learn:
* NovaCentrix's approach to customizing silver ink formulations.
* The importance of collaboration with end-users in ink development.
* The availability of technical data and samples for customer evaluation.
📋 **Clip Abstract:** This segment focuses on NovaCentrix's approach to customizing silver ink formulations, emphasizing collaboration with end-users to meet specific application requirements. It highlights their willingness to tailor ink properties and provide optimized solutions.
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#SilverInk, #InkFormulation, #MaterialCustomization, #ConductiveInks, #Automotive, #PrintedElectronics
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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