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Innovative graphene oxide sensor detects low concentrations of nitrate in water

Innovative graphene oxide sensor detects low concentrations of nitrate in water

A new study published in the Chemosensors journal introduces a novel approach to nitrate ion detection using all-solid-state ion-selective electrodes enabled by graphene oxide as an ion-to-electron transducer. Nitrate ions play a critical role in the nitrogen cycle in natural ecosystems, such as in soils and aquatic environments. However, their levels have dramatically increased due to modern agricultural practices. The excessive use of inorganic fertilizers has led to high concentrations of nitrate in surface and groundwater, posing significant environmental and health risks. Eutrophication, which is a phenomenon caused by nutrient overload in water bodies, results in uncontrolled algae growth, oxygen depletion, and poor water quality. This negatively impacts biodiversity, fisheries, and recreational activities. Moreover, if nitrate concentration exceeds a certain level (the value established by the European Union is 50mg/L), water may become unsuitable for consumption, potentially leading to severe health issues such as colorectal cancer and thyroid disease. INL researchers have developed an innovative sensor that can robustly detect low concentrations of nitrate in water. Despite being effective, traditional methods for nitrate detection are time-consuming and expensive. Electrochemical sensors offer a promising alternative due to their simplicity, cost-effectiveness, and rapid response time – particularly potentiometric ion-selective electrodes. However, early […]

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III Summer School Materials for Energy Transition taking place in Aveiro, 22-24 June

III Summer School Materials for Energy Transition taking place in Aveiro, 22-24 June

The much-anticipated 3rd Edition of the Summer School on Materials for Energy Transition is set to take place in Aveiro from June 22 to 24. This event promises to be a significant milestone in the advancement of research and collaboration in the field of energy materials. Pedro Salomé, a key organizer of the Summer School and Group Leader at the INL – International Iberian Nanotechnology Laboratory, underscored the event’s crucial role in promoting sustainable energy solutions. “The development of new materials is fundamental for the transition to sustainable energy systems,” Salomé stated. “By bringing together researchers, experts, and industry members, we are fostering an environment where innovative ideas can flourish and practical solutions can be developed.” Jennifer Teixeira, a staff researcher at INL and also a member of the organizing committee, highlighted the event’s significance within the European context. “Europe is at the forefront of the global energy transition, and events like this are essential for maintaining our leadership,” Teixeira explained. “By focusing on materials science, we address one of the key challenges in achieving more efficient and sustainable energy solutions. This Summer School is not only about sharing knowledge but also about inspiring the next generation of scientists to […]

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INL advances nanotechnology for Smart City future

INL advances nanotechnology for Smart City future

This year at the Open Day, more than 1000 visitors had the chance to discover the new demonstrator ‘Smart City’, showcasing a fusion of advanced nanotechnologies developed at INL. ‘Smart City’ not only highlights INL’s research and development in nanotechnology but also exemplifies the potential of these technologies to foster smart, sustainable urban environments. At the heart of this demonstrator are MEMS, or Micro-Electromechanical Systems. These small, integrated devices combine electrical and mechanical components to perform functions such as sensing, controlling, and actuating on a micro-scale. They can produce or sense micro-motion or micro-forces, making them indispensable in sectors ranging from automotive and medical to telecommunications and electronics. The transformative potential of MEMS lies in their ability to significantly alter how humans interact with technology and their surroundings. At the core of this ‘Smart City’ is the Sensible Car project, which highlights the development of intelligent sensors essential for autonomous driving. These sensors enable comprehensive perception of surroundings, real-time precise location updates, and flawless action execution. INL’s contribution to this project includes the creation of two-dimensional MEMS mirrors, diffractive optical elements, tuneable filters, and lenses, all integrated into a LiDAR system. LiDAR, or Light Detection and Ranging, measures distances by […]

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INL engages the next generation with “Researchers at Schools” initiative

INL engages the next generation with “Researchers at Schools” initiative

In an ongoing effort to bridge the gap between nanotechnology research and the younger generation, INL is actively participating in the European Commission’s flagship initiative, “Researchers at Schools“. This initiative is designed to promote direct interaction between researchers and students, encouraging a deeper understanding of science, nanotechnology, and research activities among young minds. Last Friday marked a significant day for the “Researchers at Schools” program, with INL researchers visiting various educational institutions to engage with students and teachers, kick-starting the project SCIGLO – European Researchers’ Night. Raquel Queirós visited a primary school in Maia, where she interacted with a lively class of 26 students. The session aimed to introduce the basics of science and nanotechnology, sparking curiosity and excitement among the young learners. Miguel Cerqueira headed to Ponte da Barca, addressing 64 secondary school students from the 11th and 12th grades at Agrupamento de Escolas de Ponte da Barca. The discussions focused on advanced research topics, the impact of scientific discoveries on society, and potential career paths in the field of nanotechnology. Centro de Ciência Viva Guimarães invited Catarina Moura and Mariam Debs to lead a science communication workshop for school teachers. This event was part of the Picto_Ciência III […]

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INL Welcomes Microscopy Enthusiasts for International Day of Light Celebration

INL Welcomes Microscopy Enthusiasts for International Day of Light Celebration

The INL – International Iberian Nanotechnology Laboratory opened its doors this May to welcome microscopy enthusiasts, researchers at all career stages, engineers, and university students, particularly from the fields of science and engineering, in a grand celebration of the International Day of Light (#IDL2024). The event, which marked a global initiative highlighting the importance of light and optical technologies in science, culture, and sustainable development, provided a unique opportunity for participants to delve into the fascinating world of microscopy. The INL’s celebration of #IDL2024 was not only an educational event but also a platform for fostering collaboration and inspiring the next generation of scientists and engineers. By bringing together a diverse group of participants, INL demonstrated its commitment to promoting scientific literacy and innovation. As the event concluded, participants left with a deeper appreciation for the role of light in scientific discovery and a renewed passion for their respective fields. The success of the event underscored the importance of community engagement in science and the ongoing efforts of INL to support and inspire future advancements in nanotechnology and beyond. For more information about upcoming events at INL, please visit our website and follow us on social media. + www.inl.int

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New sustainable graphene production developed at INL

New sustainable graphene production developed at INL

The rising demand for portable electronics, e-textiles, and IoT devices has driven the need for lightweight technologies and miniaturized energy storage solutions. Graphene-based nanomaterials are at the forefront of extensive research due to their chemical stability, high surface area, strength, flexibility, and superior thermal and electrical conductivity. Supercapacitors, known for their fast charge-discharge rates, long lifespan, and simple structure, are becoming essential for energy storage in electronics, electric vehicles, and biomedical devices. They operate by storing charges through the adsorption and desorption of ions at electrode interfaces, achieving power densities over 10,000 W/kg. Microsupercapacitors, which are smaller and lighter versions, are particularly suitable for portable and wearable electronics, offering even higher power densities. The high electrical conductivity and surface area of specific graphene materials make them ideal for these applications. However, current production methods present toxicity and scalability issues that have limited their widespread use. Additionally, the materials need to comply with the requirements of deposition techniques able to guarantee reasonable production throughput. Now, INL researchers have developed a sustainable approach to produce an electrically conductive, graphene-based paste suitable for fabricating flexible devices. The results are reported today in the journal Nano Energy, in a paper by INL researchers, in collaboration with the […]

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INL Open Day 2024: A Celebration of Science and Community

INL Open Day 2024: A Celebration of Science and Community

On Saturday, May 18, 2024, the INL Open Day turned into an extraordinary adventure, thanks to the enthusiastic participation of visitors and the dedicated efforts of our volunteers and researchers. The event welcomed over 1,000 visitors from all corners of the globe, offering them a unique opportunity to experience the thrill of being a scientist for a day. Throughout the day, attendees engaged in 30 hands-on experiments, guided by more than 100 volunteers, researchers, and INL staff members. This immersive experience allowed visitors to explore the vast potential of scientific inquiry and innovation within an environment that nurtures greatness. Participants had the chance to meet our researchers and delve into our state-of-the-art facilities, gaining insights into our unique ecosystem and vibrant community. This event not only showcased the exciting work happening at INL but also reinforced our commitment to enhancing the communities we serve. The INL Open Day was a testament to the power of science to inspire and connect people from diverse backgrounds. We extend our heartfelt gratitude to everyone who joined us on this exceptional and enriching day. Your presence and enthusiasm made the event truly memorable. Thank you for celebrating with us, and we look forward to […]

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INL researchers are integrating light and AI to advance nanotechnology

INL researchers are integrating light and AI to advance nanotechnology

‘What if the brains of future robots are powered by light?’ This was one of the questions INL researcher Bejoys Jacob has been trying to answer during the past years at INL. As artificial intelligence, also known as AI, continues to revolutionise society, scientists are exploring innovative ways to power the brains of future robots. Traditional computer architectures, such as the von Neumann architecture, demand substantial energy consumption to execute AI algorithms. In light of the increasing demand for AI tools and the global push for sustainable energy solutions, researchers are seeking alternative computational architectures inspired by the human brain. At INL, the focus has been on developing a revolutionary architecture powered by light. This ambitious project involves the creation of miniaturised light sources, detectors, and photonic interconnects for a novel photonic integrated circuit architecture. As part of this initiative, Bejoys, who is pursuing a PhD at INL, in the Ultrafast Bio- and Nanophotonics group, in collaboration with Charles III University of Madrid (UC3M), is developing nano- and micro-LEDs based on GaAs III-V semiconductor materials. These LEDs mimic neuronal activity through optical/electrical signals, paving the way for advanced brain-inspired computational architectures. Bejoys explains that “the devices developed through this research […]

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12th Congress of SciComPt Network Addresses Accessibility in Science Communication

12th Congress of SciComPt Network Addresses Accessibility in Science Communication

Yesterday, the halls of the INL – International Iberian Nanotechnology Laboratory echoed the vibrant discussions of scientists, communication professionals, and engaged citizens. The occasion? The highly anticipated 12th Congress of the SciComPt network, themed “Accessibility in Science Through Diverse Languages and Voices.” With a packed auditorium, the congress marked a significant milestone in the ongoing quest for inclusivity in the scientific arena. The event aimed to confront the urgent need for improved accessibility in science communication, recognizing that the responsibility of science extends far beyond the confines of laboratory walls. In today’s fast-paced society, merely granting access to scientific publications is insufficient in empowering citizens to fully engage with scientific knowledge. As science ventures into increasingly intricate and ethically nuanced territories, bridging the gap between scientific expertise and public comprehension becomes paramount. Against this backdrop, the congress emerged as a beacon of hope, shedding light on the pivotal role of science communication in nurturing a more inclusive scientific community. From fostering ongoing dialogues between scientists and society to addressing sensory limitations and diversifying communication channels, the congress explored a myriad of strategies to enhance accessibility in science. Tomorrow, May 10th, the congress enters its final day at the University of […]

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