Graphene-Info | Graphene industry portal - Page 2

Graphene-based surface offers long-term scalable frost prevention

Researchers from Northwestern University and University of California have developed a strategy that prevents frost formation - the team reported a hybrid surface design that passively controls the diffusion of water vapor over a surface to sustain flat frost-free regions for long periods of time. The hybrid anti-frosting technique can prevent frosting for potentially weeks at a time and is scalable, durable and fabricated through 3D printing.

The team found that tweaking the texture of any surface and adding a thin layer of graphene oxide prevents 100% of frost from forming on surfaces for one week or potentially even longer. This is 1,000 times longer than current, state-of-the-art anti-frosting surfaces. As a bonus, the new scalable surface design is also resistant to cracks, scratches and contamination.

Read the full story Posted: Nov 01,2024

Bio Graphene Solutions announces successful graphene-enhanced concrete trial

Bio Graphene Solutions (BGS) has shared results of a successful trial with "one of North America’s premier precast concrete manufacturers", which reportedly saw a significant material improvement and cost savings using the BGS patent-pending organic graphene admixture.

Looking to reduce its cement content by 10%, the manufacturer ultimately saw an overall admixture cost reduction of 47% as it eliminated the need for a lubricating aid commonly used to improve concrete workability. Reducing cement is a goal for many manufacturers given its high cost both economically and environmentally (due to high carbon content). In addition to cost savings, the manufacturer is said to have observed that concrete strength tests exceeded expectations, withstanding 8,000 to 17,000 lbs of pressure without stress cracking/breaking, and that the new admixture provided 28 day strength at 43% above the requirement. In addition, there were no flowability or friction issues reported, and no significant sagging or workability noted. The results were said to have met or exceeded the manufacturer’s existing standard, while fitting seamlessly into their existing process.

Read the full story Posted: Oct 31,2024

Inkjet printed silver/graphene flexible composite electrodes enable high-performance supercapacitors

Researchers at the Technical University of Liberec (Czech Republic) and Lodz University of Technology (Poland) have developed a silver/graphene flexible composite electrode using inkjet printing technology for high-performance supercapacitors. 

The scientists chose rGO as the primary material for the electrode active layer. The rGO active layer was in-situ printed and reduced on the polypropylene non-woven fabric, and silver nanoparticles were simultaneously inserted and reduced to increase the interlayer spacing of the rGO active layer, which effectively reduced the self-stacking effect of rGO and improved the overall electrochemical performance. 

Read the full story Posted: Oct 31,2024

Novel graphene-based sensor system rapidly detects toxic gas

Researchers at the University of Virginia, Ajou University and Soongsil University have developed an AI-powered system that mimics the human sense of smell to detect and track toxic gases in real time. Using advanced artificial neural networks combined with a network of sensors, the system quickly identifies the source of harmful gases like nitrogen dioxide (NO₂) that poses severe respiratory health risks.

Schematic of biological and artificial olfactory receptor. Biological receptors interact with odor molecules through specific binding, whereas artificial receptors use catalytic dissociation by Pd nano-islands for selective gas molecule adsorption on graphene surfaces. Image credit: Science Advances

The artificial olfactory receptor features nano-islands of metal-based catalysts that cover a graphene surface on the heterostructure of an AlGaN/GaN two-dimensional electron gas (2DEG) channel. Catalytically dissociated NO2 molecules bind to graphene, thereby modulating the conductivity of the 2DEG channel and allowing the system to detect gas leaks with extreme sensitivity.

Read the full story Posted: Oct 30,2024

INBRAIN Neuroelectronics raises $50 million Series B to advance graphene-based brain-computer interface technology

INBRAIN Neuroelectronics, a brain-computer interface therapeutics (BCI-Tx) company developing graphene-based neural technologies, has announced the closing of a $50 million Series B financing round. The round was led by imec.xpand with new investors EIC Fund, Fond ICO Next Tech, CDTI-Innvierte and Avançsa. Existing investors Asabys Partners, Aliath Bioventures and Vsquared also participated, bringing the total amount raised since inception to $68 million.

In addition to the Series B round, INBRAIN also secured additional funding and support from Merck KGaA to advance the clinical development of its technology in Merck’s therapeutic areas of interest. This partnership will boost the translation of INBRAIN’s platform to human use, expanding its impact across both central and peripheral nervous system applications.

Read the full story Posted: Oct 29,2024

First Graphene shares financial update

First Graphene has reported a promising quarter ending September 2024, with significant developments including a collaboration to enhance perovskite solar cells and a research initiative in the hydrogen sector

The company has generated approximately A$164,000 (almost USD$108,000) in income, capitalizing on graphene sales and development programs, and is looking to expand its market presence with new commercial opportunities in various sectors. These strategic moves aim to boost revenue and enhance shareholder value.

Read the full story Posted: Oct 29,2024

CRX Coatings launches new graphene-enhanced coating for marine applications

CRX Coatings, a Tennessee-based company specializing in graphene-formulated coatings, has entered into the boating industry by launching its new X21 Foul Release Bottom Paint.

CRX Coatings has developed a non-ablative, copper free, biocide-free graphene formula specifically for marine applications. Their innovative approach reportedly ensures maximum performance and durability for boat owners.

Read the full story Posted: Oct 29,2024