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Follow Stian defending his thesis!

On Friday June 16, at 12.00 in Auditorium 2, Science Bldg, MSc Stian Hersvik Hegdahl will defend his thesis «From waste to bio-oil: Hydrothermal liquefaction of digested sewage sludge in small and large scale.»

Å utnytte avfallsprodukter på en bedre måte, kan gjøre oss mindre avhengige av råolje, noe som er et nøkkelpunkt for å redusere CO2-utslippene i atmosfæren.

I denne avhandlingen brukes avfallsproduktet kloakkslam etter anaerob utråtning (utråtnet kloakkslam) som råstoff i en studie for å produsere produkter med høyere verdi. Som prosess benyttes hydrotermisk omdanning, som er en depolymeringsprosess brukt for å produsere bioolje fra kloakkslam ved hjelp av høy temperatur og høyt trykk. Det er gjort en systematisk tilnærming ved gjennomføring av hydrotermisk omdanning på utråtnet kloakkslam ved bruk av eksperimentelle design for å bestemme hvordan de forskjellige resultatene påvirkes ved justeringer i variablene som brukes. Disse resultatene innebærer blant annet oljeutbytte, karbongjenvinning, og forholdstallene hydrogen/karbon og oksygen/karbon. I tillegg er de produserte biooljene analysert for å bestemme sammensetningen av oljene, for igjen å finne industrielle bruksområder for oljen.

Brave mountaineers – a travelogue

A small yet dedicated delegation set off from mount Ulriken Sunday morning @10. The conditions were perfect, with crystal blue skies and wind speed nothing but a light breeze. The pace was comfortable, and companionship excellent. As for wildlife, only a few ravens were spotted in addition to lots of sheep, but they were not very wild. We enjoyed our lunch next to the picturesque Tarlebøvannet, and had a short pitstop at Brushytten for ice cream and refreshments. Finally, we reached Fløyen around 15:00.

Hopefully more will join on the next hike, and in particular our fixed-term colleagues from out of town, like PhDs and Postdocs.

Master presentations June 12.-16.

All our master exams include the candidates presenting their projects and project results. These presentation are open to everybody to attend and you are hereby encouraged to do so when it fits in! Here is a list of presentations coming up next week:

Anders Emil Stange (Chemistry) presents his thesis “Carotenoid content in algal epiphytes: A qualitative and quantitative DAD-HPLC analytical study” 12th of June at 11:00 in room 3069 (Tripletten)

Alexander Osland Ehamparam (Integrated Teacher Programme in Science and Mathematics) presents his thesis: “Ein kvalitativ studie av dialog mellom elevar og lærar rundt praktisk arbeid i kjemi” 12th of June at 10:00 in auditorium 3.

Kristin Watnedal Olsen (Medical Technology) presents her thesis: “PD-1 Receptor Occupancy Assay for Mass Cytometry” 13th of June at 10:00 in meeting room 25.1 and 5.2 in the Lab building at Haukeland University Hospital

Yacine Saada (Chemistry) presents his thesis “D – ∆ν – correlations in MRI for mapping wettability changes in porous media” 14th of June at 10:15 in room 3069 (Tripletten)

Adila Alim (Pharmacy) presents her thesis Multifasettert analyse av stabilitet og reologiske egenskaper i forbindelse med formulering av karbamidkremer” on 16th of June at 13:30 in room 3069 (Tripletten)

Masterseremoni 2023

På fredag (2. juni) var Aulaen fyllt med bachlor- og masterstudentar som fullfører sine grader i inneverande studieår. Etter lunsj hadde det matematisk-naturvitenskapelige fakultetet invitert alle studentar som har fullført eller kjem til å fullføre ein mastergrad studieåret 2022/2023 til årets masterseremoni. Seremonien er ei feiring av våre flotte ferdige kandidatar, med taler, musikk og pomp og prakt! Eit fast innslag i seremonien er utdeling av diplom, og utdanningsleiar Monica stod for dette på vegne av Kjemisk institutt.

Foto: Kjetil Ullaland

Department Lecture by professor Kyoko Nozaki

The Department Lecture given by professor Nozaki today, on Catalytic Hydrogenolysis of Carbon–Oxygen and Carbon–Nitrogen Bonds toward the Effective Use of Unutilized Carbon Resources, was a pure gift and source of joy to any chemically inclined person! She underscored that there many new chemical reactions to be discovered and developed, to provide a basis for a sustainable society!

 

Prof. Nozaki is a world-leading researcher in homogeneous catalysis and is renowned for her pioneering and transformative contributions to organic and polymer synthesis processes spanning from fundamental discovery, insight, and method development to sustainable industrial application of materials and processes. She also enjoys the synthesis of beautiful molecules. She was the first female professor to be hired at Tokyo University’s School of Engineering. Her brilliance has been recognized through numerous international awards.

 

Congrats to dr. Louise

The evaluation committee, including opponents Dag Erlend Olberg and Nina Kann, newly minted philosophiae doctor Louise Bergsjø Sand, and main supervisor Bengt Erik Haug were all pleased and happy about Louise’s performance today! Our congratulations to Louise and thanks to all contributors with assigned roles as well as all those showing up in the lecture room!

Tina and Torgils hit the news with great pop-sci story

 

This week, the TV2 News at 9 pm offered a treat: a great presentation of the research collaboration within pharmacognosy – from botany and natural products chemistry, to compounds with promising biological activity of relevance to cancer treatment and antiviral therapy.  Once again, Dorentina (Tina) Osmani and Torgils Fossen did a great job at explaining and demonstrating! The «Once again» part is a pointer to the effort made at the Opplev Marineholmen science fair by the same two researchers!

Missed the news story? Do not despair – visit TV2 news archive!

Follow Louise defending her thesis!

On Thursday May 25, at 10.30–13.00 in Auditorium 2, Science Bldg, MSc Louise Bergsjø Sand will defend her thesis «Synthetic studies toward [18F]-fluorination of solid-supported silyl ethers». In this work, the foundations have been laid for a new method for 18F radiolabelling of peptides and other biologically relevant molecules. In addition, peptide-based tracers for PET imaging have been prepared.

A number of different silyl ethers have been prepared to investigate fluorine-initiated breaking of silicon-oxygen bonds for radiolabeling of biologically relevant molecules. Synthesis of silanes and chlorosilanes with different substitution patterns has laid the foundation for further stability studies and exploration of fluorination conditions. The preparation of Si-O bonds was challenging for the sterically hindered di-tert-butyl analogues, while for the diisopropyl analogues silyl ethers with varied functionality on the aromatic ring (azide, aldehyde, ethers) were made. One silyl ether analogue was immobilized on the solid phase and fluorinations of both non-immobilized and immobilized precursor were successful. Testing of [18F]-fluorination of the solid-phase precursor at the PET center at Haukeland University Hospital gave promising results. Further studies of reaction conditions are necessary to be able to illuminate the full potential of the method.

Three peptide-based tracers suitable for studying activation of the immune system have also been prepared. These contain various chelators that can be coordinated to metallic radioisotopes. The three precursors will be radiolabeled with [68Ga], and potentially [64Cu], and will be studied further by our partners in Tromsø.

Personnel
Louise Bergsjø Sand (b. 1992) holds a master’s degree in chemistry (UiB, 2016). The doctoral work has been financed by UiB and the Trond Mohn Foundation, and the project has been carried out at both the Department of Chemistry at UiB and at the PET center at Haukeland Hospital (HUS). The main supervisor has been Prof. Bengt Erik Haug (Department of Chemistry, UiB) and co-supervisors have been Ole Heine Kvernenes (PET center, HUS) and Emmet Mc Cormack (K2, HUS).

Important step toward a total makeover of the Science Bldg and beyond

For those who reads Norwegian: Les dekanens blog denne veka (temaet ser du i utklippet under)!

For those who prefers English, please continue below the picture!

 

Important steps toward a fully modernized campus – the Nygårdshøyden South project

(the Dean’s blog, google translated and slightly revised:)

This week we have received good news from the Ministry of Education (KD)! KD has given us a written order for Assignment For Project (OFP), which means that we are allowed a less industrious path than what is usual in this type of large construction project.

This decision has been taken by KD and the Ministry of Finance on the basis of the analysis note Nygårdshøyden sør (NGHS) – Science building and Fysikkbygget – need for total rehabilitation, which was sent to KD last spring. MatNat at all levels, the Real Estate Department (EIA) and the management at UiB have done extensive and thorough work, and the ministries agree that rehabilitation of the Science and Physics building is a good framework for our project. Thank you all for your efforts thus far!

This also means that we avoid the task of generating (unrealistic) alternatives for relocating MatNat with subsequent extensive documentation. We at MatNat almost take it for granted that the faculty should be part of the knowledge environment at Høyden, and that we should have a close collaboration with the city’s other players. It is the premise that has led us to invest heavily in the rehabilitation and reuse of buildings, which is also the only sensible thing to do in light of the green shift.

We will take the good work that has already been done with us further into the process. In OFP, in collaboration with EIA, we will, among other things, work further with goals and results, infrastructure needs, cost estimates, implementation plan and organisation. We will investigate two different concepts for rehabilitation. The completed OFP will then undergo external evaluation, and our aim is to get the go-ahead to start the preliminary project as soon as possible.

We are now working in parallel with Allégaten 64. Since January this year, EIA and the UiB management have had frequent and ongoing dialogue with KD. Here, too, there are several points that need to be clarified, but we hope for good news on that front before the summer holidays.

For us, it feels as if we are escaping a penalty round, others might say that we have found a shortcut. No matter how you describe it, there is no doubt that the solid, thorough work that has been done so far has been absolutely crucial for NGHS to have taken an important step forward this week.

Welcome to Alexey!

Alexey Nesterenko is our new Postdoctoral Fellow who has joined the Department to contribute in simulating lipid membranes and carbohydrates, and to do biomacromolecular force field validation, under supervision of Markus Miettinen. Most days, you will find him at CBU@Marineholmen.

Alexey got his PhD in a field between computational chemistry and electrochemistry in 2014 at the Frumkin Institute of Physical Chemistry and Electrochemistry, whereupon he held positions at various research institutes in Moscow and at the  Moscow State University. At Frumkin, Alexey studied lipid membranes with experimental, theoretical and computational methods. His PhD was focused on investigating the structure of electrical double layer at the lipidwater interface, which was done by assembling results of MD simulation and experimental results of cation adsorption measurements. He demonstrated how to compute accurately an adsorption constant and binding site density from MD simulation. Further he continued working with this lab analyzing lipid monolayer molecular structure and polycation adsorption on anionic lipid membranes.

In 20142022, Alexey worked in Laboratory of Molecular Basis of Embryogenesis, where they studied and simulated pattern formation in early amphibian embryo using mathematical modeling with partial differential equations. He demonstrated there both experimentally and theoretically how difference in adsorption of growth factors onto heparin extracellular matrix could play role in pattern formation. Until very recently, he worked on advanced data analysis of mass-spectrometry data, including metabolomics and proteomics data in different experiments with rodent stroke and oxidative stress in eukaryotic cell lines. 

, mai 9, 2023. Category: Person.
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