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Nanoscale analysis with DNA-graphene origami

Nanoscale analysis with DNA-graphene origami

In a recently published study in Advanced Materials Interfaces, INL researchers have developed a new sensor that merges DNA origami with graphene to achieve unique accuracy in detecting molecular motion. Nieder’s group at INL, together with Alpuim’s group (INL) and Thorsten-Lars Schmidt  (Kent State University), developed this innovative sensor that could have significant potential for applications in medicine and environmental monitoring. The sensor combines DNA origami structures and a graphene layer functionalised to interact with fluorescent markers. These markers emit light, and their fluorescence behaviour – specifically its duration – changes based on their proximity to the graphene. By applying electrical signals, researchers can control this distance, enabling them to track movements as small as two nanometres. “The novelty here is that we can actually gate the graphene and sense the effects of this electrostatic approach in the fluorescent behaviour of the fluorophores,” explains João Azevedo, first author of the study. The team used Fluorescence Lifetime Imaging Microscopy (FLIM), a technique that measures the time fluorescence lasts, to achieve this high-resolution sensing. Unlike traditional fluorescence intensity methods, FLIM is less affected by photobleaching, a process where fluorescent markers lose their ability to emit light after prolonged exposure. By focusing on lifetime […]

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Denis Santos explores the critical role of sensors in ensuring safety and efficiency within the H2 Green Valley Agenda

Denis Santos explores the critical role of sensors in ensuring safety and efficiency within the H2 Green Valley Agenda

At INL, innovation is at the core of our mission to address global challenges. Dr. Denis Santos, a Research Engineer in the Piteira Research Group since 2023, is advancing sensor technology with applications ranging from biomedical fields to energy systems. In this interview, Denis Santos explores the critical role of sensors in ensuring safety and efficiency within the H2 Green Valley Agenda, Portugal’s leading green hydrogen initiative. He discusses how working on large-scale projects shapes innovation, balancing cutting-edge research with market needs, and emphasizes the importance of public trust in the scalability of hydrogen systems. With experience at CERN, Denis Santos offers a unique perspective on transforming research into real-world applications through industry partnerships and technology transfer. His work highlights the power of collaboration in building a sustainable, safe energy future. Dive into this interview to learn how advanced sensor technologies are shaping the path toward a greener tomorrow. In what ways could your work in sensors contribute to monitoring safety and efficiency in the green hydrogen value chain for the H2 Green Valley Agenda? Hydrogen holds great promise in both the stationary and transportation energy sectors since no harmful emissions are produced during its combustion and it is generally considered […]

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INL Hosts “Empowering Research Careers: HRS4R & CoARA in Focus”

INL Hosts “Empowering Research Careers: HRS4R & CoARA in Focus”

Last Thursday, November 14th, 2024, INL brought together leading experts in research governance, HR strategy, and leadership for a day-long event entitled “Empowering Research Careers: HRS4R & CoARA in Focus”. The event provided an opportunity for participants to delve into the impact of the Human Resources Strategy for Researchers (HRS4R) and the European Coalition for Advancing Research Assessment (CoARA) on research careers, while fostering meaningful discussions about leadership and professional growth. The morning session opened with a warm welcome and a thought-provoking lineup of guest speakers: with Isabelle Halleux, Head of the Project Management Office at the Luxembourg Institute of Socio-Economic Research (LISER), highlighted the transformative impact of HRS4R on researchers and their careers; Barbora Wahlová, an HR Strategy Consultant, presented insights into employee assessment as a pathway to career advancement, sharing strategies for supporting researchers’ professional development; Miklós Gyorffi provided an overview of CoARA and its potential influence at INL, setting the stage for future engagements with this European initiative; and Bruno Béu, representing the Portuguese National Chapter of CoARA, offered a closer look at the national-level implementation and its relevance to INL. A roundtable discussion moderated by Lorena Diéguez followed, allowing speakers to answer specific questions about the […]

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INL Hosts Key Seminar on Critical Mineral Resources and Battery Value Chain

INL Hosts Key Seminar on Critical Mineral Resources and Battery Value Chain

On November 12, the International Iberian Nanotechnology Laboratory hosted a significant seminar titled “Critical Mineral Resources and the Battery Value Chain: Opportunities and Challenges for Portugal.” Organized by Battery Cluster Portugal and the Cluster Portugal Mineral Resources Association, the event attracted over 150 experts, industry representatives, and government officials. The gathering focused on Portugal’s strategic role in the battery sector and the vital mineral resources required for battery production, aiming to explore innovative strategies and address industry challenges. The session opened with remarks from Portugal’s Secretary of State for Energy, Professor Maria João Pereira, who emphasized the country’s commitment to advancing sustainable energy solutions. Dr. Joaquim Nunes de Almeida, Director of DG GROW at the European Commission, followed with an outline of the EU’s strategic guidelines for managing critical mineral resources, highlighting Europe’s efforts to secure these essential resources as the demand for batteries and renewable technologies grows. Throughout the day, panel discussions led by companies, academic institutions, and industry stakeholders delved into topics such as technological innovation, sustainability, and the integration of advanced materials into the battery supply chain. Moderated by leading universities, these sessions provided insights into the opportunities and challenges Portugal faces in building a resilient, sustainable […]

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Nanodiamonds bring new hope for Parkinson’s research with advanced neuronal sensing

Nanodiamonds bring new hope for Parkinson’s research with advanced neuronal sensing

Researchers at INL – International Iberian Nanotechnology Laboratory from Nieder research group, in collaboration with ICVS and iBiMED, are pioneering the use of functionalised nanodiamonds. This innovative approach offers a highly precise method to monitor neuronal activity at the cellular level, advancing our understanding of Parkinson’s disease. This breakthrough, published in ACS Applied Materials & Interfaces, could help understand the complex biological shifts occurring in the brains of patients suffering from neurodegenerative diseases, potentially leading to earlier diagnosis and personalised treatment. Parkinson’s disease, which affects over 10 million people worldwide, is characterised by the gradual loss of dopamine-producing neurons in the brain. This leads to motor symptoms such as tremors, difficulty with balance, and slowed movement. Studying these neurons at the single-cell level is crucial to understanding the disease’s progression. However, existing methods for observing neuronal activity, such as microelectrode arrays and patch-clamp techniques, have significant limitations, including poor spatial resolution and invasiveness. A promising alternative comes from the world of nanotechnology. Nanodiamonds are tiny diamond particles, just a few nanometres in size, known for their exceptional stability and biocompatibility. When these nanodiamonds contain special defects called nitrogen-vacancy centres, they gain unique optical and magnetic properties, making them a powerful […]

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Sinfonia Project Concludes with a Resounding Success at the II ‘Total-Nanosafe’ International Conference in Braga

Sinfonia Project Concludes with a Resounding Success at the II ‘Total-Nanosafe’ International Conference in Braga

Braga recently hosted the closing event of the Sinfonia Project, where over 100 participants celebrated the successful culmination of a four-year journey dedicated to advancing nanosafety. The II ‘Total-Nanosafe’ International Conference served as the platform for this milestone, bringing together global experts to explore the intersection of nanotechnology, human health, and environmental impact. Pioneering Discussions in Nanosafety This year’s conference provided a comprehensive view of the latest nanosafety advancements, featuring discussions on nanotoxicology, organ-on-a-chip models, in vitro-in vivo bridging, in silico methods, and the environmental impact of nanomaterials. The event highlighted key trends shaping the future of nanosafety, underscoring a commitment to safe and sustainable nanotechnology development. Conference Highlights The conference opened with a welcome cocktail on November 6, followed by sessions on November 7 and 8. Professor Ulla Vogel from Denmark’s National Research Centre for the Working Environment delivered an impactful keynote on nanoparticle toxicology, focusing on occupational health risks related to nanoparticles, including cancer, cardiovascular disease, and fertility impacts. Presentations from INL and other leading institutions covered diverse research topics, such as the effects of silver nanoparticles on lung-barrier function, skin-on-chip safety models, and the impacts of black carbon on aging. These studies highlighted the scope of nanosafety […]

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Revolutionising Water Quality Monitoring: An Interview with Najib Ben Messaoud

Revolutionising Water Quality Monitoring: An Interview with Najib Ben Messaoud

We’re excited to introduce Dr. Najib Ben Messaoud, a Research Fellow in the Water Quality Research Group at INL. With a distinguished background in nanotechnology and sensing strategies, Najib’s work focuses on developing advanced methods for detecting water contaminants. His dedication to creating reliable tools for water monitoring spans health, environmental, and agricultural applications. In this interview, Najib shares insights into his journey, recent projects, and the impact of urbanization on water quality monitoring. Could you briefly describe your academic and professional background in water quality research? I hold a PhD in Engineering Physics with a specialization in nanotechnology sciences from the High School of Sciences and Technologies, Hammam Sousse, Tunisia. During my PhD, I focused on designing nanostructured electrodes and electrochemical (bio)sensors to detect carcinogenic substances in water. My journey in water quality research began about a decade ago during my master’s project, which involved detecting perchlorate in water. In 2019, I joined INL as a Research Associate, where I contributed to developing a portable system to quantify Aeromonas salmonicida in water. Since 2021, in my role as a Research Fellow, I have engaged in multiple projects related to water quality, including those focused on detecting nanomaterials, nitrite, and nitrate in […]

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Stamp-sized microchip that imitates the human brain could speed up treatments for Alzheimer’s [republished]

Stamp-sized microchip that imitates the human brain could speed up treatments for Alzheimer’s [republished]

A human brain-on-a-chip sounds like something from a science fiction film, a gadget powering its cyborg villain.  Discover how INL’s innovative stamp-sized microchip is transforming healthcare and data security. Learn about this ultra-small technology and its impact on future applications. Chemical and biological engineer Dr Raquel Rodrigues at the INL – International Iberian Nanotechnology Laboratory (INL) in Braga, Portugal, believes that such a device will be key to developing more effective treatments for serious neurological disorders, such as Alzheimer’s. “The brain is a very complex and puzzling organ,” said Rodrigues. “We need electronic monitoring of cells and experimental parts so we can learn how it works.” Your brain on a chip Thanks to research funding from the EU, Rodrigues and fellow researchers at the INL were able to build a unique brain-emulating microchip as part of a two-year research effort called BrainChip4MED that concluded in February 2024. The research included a 12-month secondment to Brigham and Women’s Hospital, part of Harvard Medical School and pioneers in the development of organs-on-a-chip (OoC) and biosensors. The ingenious, thumbnail-sized device developed by the researchers looks similar to chips in computers or smartphones, but is much more complex.  “ The brain is a very complex and […]

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