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vilniustech.lt/..ntal-sciences/6593?lang=2 

Overview

PhD candidate position in Synthesis of metallic 2D-3D nanostructures, using DNA-based templates, and investigation of their application in nanoplasmonics

Open application for a doctoral candidate in the field of Materials engineering
The doctoral candidate position is available in the faculty of the Fundamental sciences department of Chemistry and Bioengineering. Applicants interested in other research topics related to Nano bioengineering are also welcome to apply.

Research topic description
Plasmonic materials are finding increasing applications in a variety of fields. The unique properties of plasmonic materials are due to the oscillations of the plasmons or the movement of the electrons in the collective conduction band with respect to the fixed positive ions. This is often seen in precious metals. When plasmon oscillations are caused by external light sources in certain wavelength ranges, then light at the nanoscale can be manipulated to create points of an extremely strong electromagnetic field. These points can be used to perform single-molecule sensitivity spectroscopy or to develop optical devices with unique properties. Over the last few decades, the discovery of naturally occurring plasmonic materials or the creation of artificially created plasmonic structures has led to the discovery of many unusual plasmonic properties, as well as many applications, including energy capture; imaging of the sub-diffraction limit; biological and molecular sensors used from medical to space research.
The synthesis of plasmonic structures based on traditional nanolithography (top-down) is complex and expensive. Developing mass production of three-dimensional nanostructures using this methodology is not economical. In order to reduce production costs, considerable efforts are being made to develop cheaper and more flexible bottom-up methods, such as the self-assembly of materials into well-defined structures with controlled plasmonic properties.
DNA nanostructures offer new possibilities for the production of solution-phase plasmonic nanostructures with high complexity and hierarchy. In the proposed doctoral thesis, we will summarize the latest achievements in this direction by classifying DNA-based plasmonic nanostructures according to the roles of DNA. The first role of DNA is to: DNA or DNA nanostructures to act as switches for the controlled assembly of metal nanoparticles; second, DNA or DNA nanostructures are templates for the production of plasmonic nanostructures with rationally designed dimensions, morphology, and symmetry. Gold and silver nanoparticles (AuND / AgND) are metal nanoparticles that generate the most intense electromagnetic fields in plasmonics. The doctoral program will focus on the study of plasmonic DNA-Au / Ag nanostructures. There are no industrial and standardized measurement methods for the study of such structures, therefore an integrated Raman spectroscopy and atomic microscopy method will be developed for the study and characterization of hybrid DNA-Au / Ag plasmonic nanostructures.

The selected candidate will work on the PhD thesis under the supervision of Assoc. prof. dr. Ingrida Bružaitė. The successful applicant will have to attend scientific conferences, meetings and internships in the other universities.

Requirements
• Required background: The candidate must be graduated from an engineering school and/or with a Master research degree whose training focuses primarily on solid-state physics, materials science, chemistry, Nano/micro-electronics or related fields. The PhD subject requires a large part of experimental work and a good scientific level in solid-state physics, physico-chemistry and characterization techniques.

• Expected skills and knowledge: We are looking for a highly-motivated student with a strong interest and capacities in materials science. Interpersonal skills, dynamism, rigour and teamwork abilities associated with rapid work in autonomy will be appreciated. Candidates should be fluent in English. In addition, well-written English will be highly appreciated. A previous internship experience in materials sciences research and/or electrical characterizations is expected.
It is a prerequisite you can be present at and accessible to the institution daily.

For more information
Shortlisted candidates will be invited for an interview. The position may not be opened if no qualified candidate is found. Additional information regarding the post may be obtained from Assoc. prof. dr. Ingrida Bružaitė, e-mail: ingrida.bruzaite@vilniustech.lt.

Programme structure

The PhD programme consists of:
· Independent research under supervision;
· Courses for PhD students (approximately 30 ECTS credits);
· Participation in research networks, including placements at other, primarily foreign, research institutions;
· Teaching or another form of knowledge dissemination, which is related to the PhD topic when possible;
· The completion of a PhD thesis.

Apply now! Fall semester 2022/23
Application deadline
24 Aug 2022 23:59:59
Eastern European Time
Studies commence
Sep 1, 2022

Application deadlines apply to citizens of: United States

Apply now! Fall semester 2022/23
Application deadline
24 Aug 2022 23:59:59
Eastern European Time
Studies commence
Sep 1, 2022

Application deadlines apply to citizens of: United States