Robust manufacturable antibacterial surfaces enabled by superhard plasmon-enhanced photocatalytic materials.
Lead Research Organisation:
Imperial College London
Department Name: Physics
Abstract
Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.
Organisations
People |
ORCID iD |
| Rupert Oulton (Principal Investigator) | |
| Peter Petrov (Co-Investigator) |
Publications
Doiron B
(2023)
Optimizing Hot Electron Harvesting at Planar Metal-Semiconductor Interfaces with Titanium Oxynitride Thin Films.
in ACS applied materials & interfaces
Ehiasarian A
(2022)
Real-time monitoring of plasma synthesis of functional materials by high power impulse magnetron sputtering and other PVD processes: towards a physics-constrained digital twin
in Journal of Physics D: Applied Physics
Ehiasarian A
(2024)
Novel high-efficiency plasma nitriding process utilizing a high power impulse magnetron sputtering discharge
in Journal of Vacuum Science & Technology A
Kaur A
(2023)
Development of Nanopackaging for Storage and Transport of Loaded Lipid Nanoparticles.
in Nano letters
Purandare Y
(2023)
Improving tribocorrosion resistance of a medical grade CoCrMo alloy by the novel HIPIMS nitriding technique
in Journal of Science: Advanced Materials and Devices
Wang Y
(2023)
Toward Fabrication of Devices Based on Graphene/Oxide Multilayers.
in ACS applied electronic materials
Wang Y
(2023)
Deposition of Nanocrystalline Multilayer Graphene Using Pulsed Laser Deposition
in Crystals
Yao Q
(2023)
Crystalline AuNP-Decorated Strontium Niobate Thin Films: Strain-Controlled AuNP Morphologies and Optical Properties for Plasmonic Applications.
in ACS applied nano materials
| Title | Characterisation of hot electron activity in metal films |
| Description | We have developed a technique to measure the activity and mobility of photo excited hot electrons at a metal surface. The technique uses ultrafast pump probe spectroscopy to measure a transient change in the metal surface's reflection due to the generation of hot electrons at the surface. By scanning the pump beam position in space relative to the fixed probe beam, the diffusion of hot carriers can be determined. Mobile hot carriers are expected to be available for initiating chemical reactions. In the current grant, yea re using this to study how effective the hot carriers in various metal films used for prosthetic implants might be for anti-microbial function. |
| Type Of Material | Technology assay or reagent |
| Year Produced | 2024 |
| Provided To Others? | No |
| Impact | This tool allows us the characterise hot electron generation and function in any metal film. We are using it here, to understand the availability of hot electrons for anti-microbial function in prosthetic implants. |
| Title | Deposition of High-Quality Plasmonically-Active Transition Metal Nitrides at Low Temperature |
| Description | Plasmonic materials are finding a growing range of applications for sensing, medical treatments and photocatalysis. Standard plasmonic materials utilise gold nanoparticles which have a high performance however are unstable in many environments due to their proclivity to diffuse and degrade. Transition metal nitrides are ceramics, which have similar plasmonic activity to gold, are stable and resist harsh environments including high temperature, corrosion, and mechanical wear. Despite these attributes transition metal nitrides are not widely used as plasmonic materials due to their high melting point, which makes it difficult to synthesise them with high purity unless very high temperatures are used. This limits their applicability. The method developed at Sheffield Hallam University during uses a highly ionised plasma environment to grow these materials. The highly ionised flux available arrives with high energy at the substrate and provides sufficient energy for growth without the bulk of the material reaching elevated temperatures. The method relies on the plasma produced by High-Power Impulse Magnetron Sputtering, which was developed and upscaled at Sheffield Hallam University. It uses high power densities to create extremely dense plasma containing active species. It produces very dense ceramic films with excellent optical performance. |
| Type Of Material | Technology assay or reagent |
| Year Produced | 2023 |
| Provided To Others? | No |
| Impact | The new method extends the applicability of plasmonic materials to environments which are harsh - including exposure to high temperature, corrosion and intense mechanical wear. It also imparts an antimicrobial function through a photocatalytic reaction. The robust antimicrobial materials will be used in high-touch public spaces, e.g. hospitals as well as orthopaedic instruments and implants. |
| URL | https://www.shu.ac.uk/research/specialisms/materials-and-engineering-research-institute/what-we-do/t... |
| Title | Spatially resolved Anti-Stokes Raman Spectroscopy |
| Description | We have implemented a spatially resolved Raman spectroscopy set to measure Stokes and Anti-Stokes responses. The system is sensitive by employing feedback controlled positioning of laser excitation allowing for long integration times. In this way, we are able to measure the temperature of hot carriers. This has application in the analysis of hot carriers. |
| Type Of Material | Technology assay or reagent |
| Year Produced | 2024 |
| Provided To Others? | No |
| Impact | This tool enables us to observe directly the hot electron population and to distinguish this from the lattice temperature of metal nanostructures. This will aid in the understanding of photo catalysis and anti-microbial function of metal nanostructures and films. |
| Description | Article about the 13th International Conference on HIPIMS in Galvanotechnik Magazine in Germany |
| Form Of Engagement Activity | A magazine, newsletter or online publication |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | The editor of Galvanotechnik magazine, a premier industrial surface technology publication in Germany dedicated an article to the 13the International Conference on HIPIMS |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://www.leuze-verlag.de/shop/einzelartikel-galvanotechnik/hipims-conference-and-40-years-of-hauz... |
| Description | Arunprabhu Sugumaran - Poster "Realtime control of composition of CrAlYN/CrN coatings deposited by high power impulse magnetron sputtering" at 13th International Conference on HIPIMS |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Policymakers/politicians |
| Results and Impact | Dr Sugumaran presented a poster at the 13th International Conference on HIPIMS |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://www.hipimsconference.com/images/legacy/Book_of_Abstracts-HIPIMS2023.pdf |
| Description | Arutiun Ehiasarian - Topical lecture delivered at the Twenty-third International Summer School on Vacuum, Electron, and Ion Technologies |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Prof Ehiasarian delivered a topical lecture at the Twenty-third International Summer School on Vacuum, Electron, and Ion Technologies |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://www.veit.ie-bas.org |
| Description | Arutiun Ehiasarian - talk "Tough Plasmonic Titanium Nitride Films Deposited by High Power Impulse Magnetron Sputtering" at International Conference on Metallurgical Coatings and Thin Films |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Prof. Ehiasarian delivered a topical lecture at the International Conference on Metallurgical Coatings and Thin Films |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://icmctf2023.avs.org/wp-content/uploads/2020/12/ICMCTF-Tech-Program.pdf |
| Description | Ehiasarian - Short course "Fundamentals of High Power Impulse Magnetron Sputtering " at International Conference on Metallurgical Coatings and Thin Films in USA |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Postgraduate students |
| Results and Impact | Prof. Ehiasarian delivered a Short course on "Fundamentals of High Power Impulse Magnetron Sputtering " at International Conference on Metallurgical Coatings and Thin Films in USA |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://icmctf2023.avs.org/ |
| Description | Ehiasarian - Short course "High Power Impulse Magnetron Sputtering " at Annual Technical Conference o f the Society of Vacuum Coaters in USA |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | Prof. Ehiasarian delivered a full-day Short course "High Power Impulse Magnetron Sputtering " at Annual Technical Conference o f the Society of Vacuum Coaters in USA |
| Year(s) Of Engagement Activity | 2023 |
| URL | http://www.svc.org |
| Description | Ehiasarian - Short course "High Power Impulse Magnetron Sputtering Applications" at 13th International Conference on HIPIMS |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Prof. Ehiasarian delivered a half-day short course on "High Power Impulse Magnetron Sputtering Applications" prior to the 13th International Conference on HIPIMS |
| Year(s) Of Engagement Activity | 2023 |
| URL | http://www.hipimsconference.com |
| Description | Ehiasarian - Short course "High Power Impulse Magnetron Sputtering" at 13th International Conference on HIPIMS |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Professor Ehiasarian delivered a full day short course on "High Power Impulse Magnetron Sputtering" prior to the 13th International Conference on HIPIMS |
| Year(s) Of Engagement Activity | 2023 |
| URL | http://www.hipimsconference.com |
| Description | Ehiasarian - Short course "Practice and Applications of High Power Impulse Magnetron Sputtering " at Annual Technical Conference of the Society of Vacuum Coaters in USA |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | Prof. Ehiasarian delivered a half-day short course "Practice and Applications of High Power Impulse Magnetron Sputtering " at the Annual Technical Conference of the Society of Vacuum Coaters in USA |
| Year(s) Of Engagement Activity | 2023 |
| URL | http://www.svc.org |
| Description | Ehiasarian - Short course on "Advanced Understanding of High Power Impulse Magnetron Sputtering " at International Conference on Metallurgical Coatings and Thin Films in USA |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Postgraduate students |
| Results and Impact | Prof. Ehiasarian delivered a Short course on "Advanced Understanding of High Power Impulse Magnetron Sputtering " at International Conference on Metallurgical Coatings and Thin Films in USA |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://icmctf2023.avs.org/ |
| Description | Ehiasarian - article in Materials World Magazine "Digitalising PVD coating production" |
| Form Of Engagement Activity | A magazine, newsletter or online publication |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | John Yarnall FIMMM and Professor Arutiun Ehiasarian of Sheffield Hallam University, UK, explore the issues around quality and reproducibility of PVD coatings on tool surfaces. |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://www.iom3.org/resource/digitalising-pvd-coating-production.html |
| Description | Ehiasarian - article in SURFACE MATTERS Magazine "UK'S FIRST RESEARCH PLATFORM FOR DIGITALISATION OF PVD PROCESSES AT INDUSTRIAL SCALE" |
| Form Of Engagement Activity | A magazine, newsletter or online publication |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | SURFACE MATTERS Newsletter published Sheffield Hallam University's press release about the National HIPIMS Technology Centre's new world class research and innovation capability to drive next generation physical vapour deposition (PVD) processing following major investment in full digitisation of equipment and technology. |
| Year(s) Of Engagement Activity | 2022 |
| URL | https://www.sea.org.uk/news-press/ |
| Description | Ehiasarian - exhibition stand at Advanced Engineering 2023 |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | The National HIPIMS Technology Centre (Ehiasarian and Miles) presented an exhibition stand at the Advanced Engineering Show 2023 at the National Exhibition Centre in Birmingham. Over two days, the stand received more than 100 visitors and collected many visitor contacts. The exhibition was open to all and the stand received enquiries from school students all the way to Professors and CEOs. The work of the project as well as nanotechnology in general was presented and met with keen interest. |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://www.advancedengineeringuk.com/ |
| Description | Ehiasarian - expert panel on Surface Engineering for the Hydrogen Economy. Opportunities and challenges: the industry perspective at 13th International Conference on HIPIMS |
| Form Of Engagement Activity | A formal working group, expert panel or dialogue |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | Ehiasarian participated in expert panel on Surface Engineering for the Hydrogen Economy. Opportunities and challenges: the industry perspective |
| Year(s) Of Engagement Activity | 2023 |
| URL | http://www.hipimsconference.com |
| Description | Ehiasarian - open day for the general public and prospective undergraduate students |
| Form Of Engagement Activity | Participation in an open day or visit at my research institution |
| Part Of Official Scheme? | No |
| Geographic Reach | Regional |
| Primary Audience | Public/other audiences |
| Results and Impact | Participated in a university-wide open day. A alive demonstration of the plasma coating deposition facilities and introduction to the nano-technology coating types produced in house. Answered several questions from visitors of all ages. |
| Year(s) Of Engagement Activity | 2024 |
| Description | Ehiasarian - talk "Transition metal nitride thin films deposited at CMOS compatible temperatures for optoelectronic and plasmonic devices" at Annual Technical Conference of the Society of Vacuum Coaters |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Prof Ehiasarian delivered a talk at the Annual Technical Conference of the Society of Vacuum Coaters |
| Year(s) Of Engagement Activity | 2023 |
| URL | http://www.svc.org |
| Description | Ehiasarian and Hovsepian - exhibition stand at Advanced Engineering 2022 |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | The National HIPIMS Technology Centre (Ehiasarian and Hovsepian) presented an exhibition stand at the Advanced Engineering Show 2022 at the National Exhibition Centre in Birmingham. Over two days, the stand received more than 150 visitors and collected many visitor contacts. The exhibition was open to all and the stand received enquiries from school students all the way to Professors and CEOs. The work of the project as well as nanotechnology in general was presented and met with keen interest. |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://www.advancedengineeringuk.com/ |
| Description | Ethan Muir - Poster "Influence of pulse duration on plasma chemistry and thin film growth of plasmonic Titanium Nitride deposited by HIPIMS" at 13th International Conference on HIPIMS |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Ethan Muir and Prof Ehiasarian presented a poster at the 13th International Conference on HIPIMS |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://www.hipimsconference.com/images/legacy/Book_of_Abstracts-HIPIMS2023.pdf |
| Description | Organised 12th International Conference on High Power Impulse Magnetron Sputtering |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | The project team at Sheffield Hallam University organised and hosted the International Conference on High Power Impulse Magnetron Sputtering in Sheffield in June 2022. The event was attended by more than 120 industrialists and academics from 20 countries. Approximately half of the attendees were from industry. The event this year had a workshop dedicated to nanopatterned antimicrobial surfaces, which generated interest and awareness of the subject. |
| Year(s) Of Engagement Activity | 2022 |
| URL | http://www.hipimsconference.com |
| Description | Organised 13th International Conference on High Power Impulse Magnetron Sputtering |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | The project team at Sheffield Hallam University worked together with Hauzer TechnoCoatings to organise and host the International Conference on High Power Impulse Magnetron Sputtering in Venlo, The Netherlands in June 2022. The event was attended by more than 150 industrialists and academics from 20 countries. Approximately half of the attendees were from industry. The event this year included a workshop dedicated to nanopatterned antimicrobial surfaces, which generated interest and awareness of the subject. |
| Year(s) Of Engagement Activity | 2023 |
| URL | http://www.hipimsconference.com |
| Description | Ryan Bower - talk "Preparation of robust nanostructured antimicrobial surfaces from TiN thin films deposited via HIPIMS" at 13th International Conference on HIPIMS |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Dr Ryan Bower delivered a lecture at the 13th International Conference on HIPIMS in Venlo, The Netherlands |
| Year(s) Of Engagement Activity | 2023 |
| URL | http://www.hipimsconference.com |