SNAIA 2019 – Smart NanoMaterials: Advances, Innovation and Applications, École Nationale Supérieure de Chimie, Paris

Internationally known experts, including industry leaders, will join the 2nd European conference on Smart Nanomaterials to discuss the most critical technological advances, innovations and new practical applications in smart technologies. SNAIA2019 will provide a unique platform to meet, share knowledge and establish links between experts from academia and industry in the emerging fields of Wearable and Printed (Opto)Electronics, CMOS Photonics, Quantum Computing, Artificial Intelligence, OptoGenetics, Smart Coatings and Thin Films.

SNAIA 2018 Prize Winners

Congratulations to all the Prize Winners at the First European Conference on Smart Nanomaterials: Applications, Innovation and Advances (SNAIA 2018).

Four prizes were sponsored by the Royal Society of Chemistry. Read more about the winners here http://blogs.rsc.org/nr/2019/02/12/congratulations-to-the-prize-winners-at-snaia2018/?doing_wp_cron=1550177750.7013831138610839843750.

A further prize was sponsored by the EPSRC Centre for Doctoral Training in Metamaterials (XM2 CDT). Read more about the prize and the winner here http://blogs.exeter.ac.uk/xm2news/snaia-2018/.

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POEM 2019

 

We are currently organising a conference – Photonic and Optoelectronic Materials (POEM) 2019.

The programme committee are now accepting abstracts for both oral and poster presentations. The abstract submission deadline is 1 March 2019.

The conference will take place University College London from 9th to 12th of April 2019. More information on POEM 2019 can be found at www.poem2019.com

More than 200 attendees will meet at this Conference and exhibition. POEM 2019 will provide a unique platform to meet, share knowledge and establish links between experts from academia and industry. The conference topics will include:

  • 2D materials

  • IV element-based photonic materials and devices

  • Chalcogenide materials

  • Quantum Dots and Nanowires

  • Organic materials

  • Liquid Crystals and Fluid Nanocomposites​

The conference programme will incorporate the following symposia:

  • 2D Material Symposium

  • Liquid Crystal Symposium

  • THz Optoelectronics and Photonics Symposium

  • Nanophotonics Symposium

  • Energy Materials Symposium

  • Metamaterials and Plasmonic Devices Symposium

  • Smart Biosensors and Bioanalytical Systems Symposium

  • Microscopy and Microspectroscopy of Nanomaterials Symposium

We already have an exciting list of Keynote and Invited Speakers lined up for this event: https://www.poem2019.com/speakers

We look forward to seeing you there.

Multi-layer graphene as a selective detector for future lung cancer biosensing platforms

figures (5) (003)Our latest article on the feasibility of using patterned multi-layer graphene for the detection of volatile organic compounds – typical biomarkers of lung cancer – has just been published in the Royal Society of Chemistry’s journal Nanoscale.

Read the article here: https://pubs.rsc.org/en/content/articlelanding/2019/nr/c8nr08405j#!divAbstract

Highly selective, fast detection of specific lung-cancer biomarkers (CMs) in exhaled human breath is vital to the development of enhanced sensing devices. Today, e-nose is a promising approach for the diagnosis of lung cancer. Nevertheless, considerable challenges to early-stage disease diagnostics still remain: e.g. decrease in sensor sensitivities in the presence of water vapor, sensor drift leading to the inability to calibrate exactly, relatively short sensor lifetimes, and difficulty discriminating between multiple diseases. However, there is a wide scope for breath diagnostics techniques, and all advanced electrodes applicable to e-nose devices will benefit them. Here, we present the promising sensing capabilities of bare multi-layer graphene (MLG) as a proof of concept for advanced e-nose devices and demonstrate its utility for biomolecule discrimination of the most common lung CMs (ethanol, isopropanol, and acetone). We report on a comparative study involving exposure of the three CM solutions on flat MLG (f-MLG) and patterned MLG (p-MLG) electrodes, where the electrical conductivity of p-MLG is significantly increased while applying acetone. Based on sensitivity tests, we demonstrate the ability to monitor the electrical response of graphene electrodes employing graphene of various wettabilities. Specifically, the f-MLG electrode displays almost 2 times higher sheet resistance (30 Ω sq−1) compared to the hydrophilic p-MLG (12 Ω sq−1). We show significant sensitivity to selected specific molecules of pristine f-MLG and p-MLG while applying CM solutions with a 1.4 × 105 ppm concentration. Finally, we show the selectivity of f-MLG and p-MLG-based sensors when exposed to 2.0 × 105 ppm solutions containing different CM combinations. Both sensors were selective in particular to acetone, since the presence of acetone leads to a sheet resistance increase. We demonstrate that an advanced e-nose approach integrated with MLG electrodes has significant potential as a design concept for utilization of molecular detection at variable concentrations such as in early-stage disease diagnosis. This early-stage approach will provide convenient and reusable complex monitoring of CMs compared to typical contact sensors which require target analysis and are limited by disposable measuring. Moreover, further integration of the Internet of Things will introduce advanced e-nose devices as a biotechnological innovation for disease resilience with the potential for commercialization.

Article Published: Self-Assembled QD Crystals

Our latest research article on the optical properties of self-assembled quantum dot crystals has just been published as an Accepted Manuscript in the Journal of Materials Chemistry C.

https://pubs.rsc.org/en/content/articlelanding/2018/tc/c8tc04780d#!divAbstract

This research was undertaken as part of our collaborative work with ITMO University, St Petersburg, Russia. In this paper, quantum dot (QD) self-assembly into ordered superstructures has been analysed, along with the evolution of their morphological and optical properties. QD self-assembly occurs through two distinct stages (homo- and hetero-geneous), leading to the formation of supercrystals with a layered morphology. Analysis of the optical properties throughout the superstructures’ growth has shown that the absorption and photoluminescence (PL) bands are blue shifted, retaining almost the same PL lifetimes as in the initial QD solution. The supercrystals formed possess a further unique optical property caused by their layered morphology; namely, a four-fold symmetry characterized by strong birefringence. Such supercrystals may be used for the fabrication of microscale optical paths with high extinction coefficients and specific polarization properties for novel optoelectronic devices.

Microscopy and Analysis article published

An article we wrote on ‘Probing Raman Scattering for Particle Tracking’ has been published in Micrcoscopy and Analysis: http://www.microscopyebooks.com/Europe/Supplements/2018/September/https://lnkd.in/dmsEkyd

The article presents a summary of the current achievements of our ongoing investigations using Raman spectroscopy to characterise and track particles of different materials. Microscopy and Analysis is the leading international journal for microscopists, with over 46,000 subscribers and 120,000 readers worldwide. The journal is distributed free of charge.