Hydrogels form a special class of form-stable, elastic materials that consist of a (polymer) network and a large amount of water. In this project you will use advanced nonlinear spectroscopic techniques to study biological hydrogels and supramolecular hydrogels. Biological hydrogels have a network formed by protein-polysaccharide chains, and typically contain 90-99% water. These hydrogels are ubiquitous in nature and perform important biological functions. Supramolecular hydrogels contain relatively small molecular components that reversibly assemble via hydrogen bonds and hydrophobic interactions into fibrils or bundels. Supramolecular hydrogels can already be form-stable and elastic while containing an astonishingly large amount (>99.9%) of water. As a result of the non-covalent nature of these interactions, supramolecular hydrogels are highly responsive to external stimuli like changes in temperature, pH, and exposure to light, thus allowing an easy control of their visco-elastic properties. For some supramolecular hydrogels, a small change in temperature already suffices to switch the state of the system between a liquid aqueous solution and a form-stable elastic hydrogel.
In this project you will study the molecular-scale structure and dynamics of the water and the polymer network of biological and supramolecular hydrogels, using femtosecond two-dimensional infrared spectroscopy and polarization-resolved femtosecond infrared spectroscopy. The obtained information will clarify how the macroscopic viscoelastic and responsive properties of hydrogels are determined by the structure and dynamics of the polymer network and the water molecules of the hydrogel.
You have a Masters degree in physics or physical chemistry. Experience with femtosecond lasers and/or nonlinear spectroscopy is a bonus.
The position is intended as full-time (40 hours / week, 12 months / year) appointment in the service of the Netherlands Foundation of Scientific Research Institutes (NWO-I) for the duration of four years, with a starting salary of gross € 2,590 per month and a range of employment benefits. After successful completion of the PhD research a PhD degree will be granted. Several courses are offered, specially developed for PhD-students. AMOLF assists any new foreign PhD-student with housing and visa applications and compensates their transport costs and furnishing expenses.
The Ultrafact Spectroscopy group studies the molecular-scale structural dynamics of complex liquids like water and aqueous solutions, and solids (e.g. ice and metal-organic-frameworks). This research is carried out with advanced (nonlinear) spectroscopic techniques including femtosecond two-dimensional infrared spectroscopy, vibrational surface sum-frequency generation, and GHz-THz dielectric relaxation spectroscopy.
AMOLF is highly committed to an inclusive and diverse work environment. Hence, we greatly encourage candidates from any personal background and perspective to apply.Commercial activities in response to this ad are not appreciated.
Science Park 104, 1098 XG, Amsterdam
This application process is managed by the employer (AMOLF). Please contact the employer for questions regarding your application.
Please contact the employer for questions regarding your application.
Tip: save this job as favorite in your AcademicTransfer account. This gives you an immediate overview and makes it easy to find the job later on. No account yet? Create it now and take advantage of other useful functionalities too!
Make sure to apply no later than 31 Jul 2023 23:59 (Europe/Amsterdam).
We like to make it easy for you, sign in for these and other useful features: