The first-ever positronium image of a phantom made of heart myxoma and adipose tissue- publication in Science Advances.
Our collegues Colleagues from the Department of Experimental Particle Physics and its Applications and the Department of Medical Physics of our Institute made the first positron imaging of a phantom made of heart myxoma and adipose tissue.
In vivo assessment of cancer and precise location of altered tissues at initial stages of molecular disorders are important diagnostic challenges. Positronium is copiously formed in the free molecular spaces in the patient’s body during positron emission tomography (PET). The positronium properties vary according to the size of inter- and intramolecular voids and the concentration of molecules in them such as, e.g., molecular oxygen, O2; therefore, positronium imaging may provide information about disease progression during the initial stages of molecular alterations. Current PET systems do not allow acquisition of positronium images. This study presents a new method that enables positronium imaging by simultaneous registration of annihilation photons and deexcitation photons from pharmaceuticals labeled with radionuclides. The first positronium imaging of a phantom built from cardiac myxoma and adipose tissue is demonstrated. It is anticipated that positronium imaging will substantially enhance the specificity of PET diagnostics.
J-PET group has tested symmetry between charged leptonic matter and antimatter - paper in Nature Communications.
Charged lepton system symmetry under combined charge, parity, and time-reversal transformation (CPT) remains scarcely tested. Despite stringent quantum-electrodynamic limits, discrepancies in predictions for the electron–positron bound state (positronium atom) motivate further investigation, including fundamental symmetry tests. While CPT noninvariance effects could be manifested in non-vanishing angular correlations between final-state photons and spin of annihilating positronium, measurements were previously limited by knowledge of the latter. Here, we demonstrate tomographic reconstruction techniques applied to three-photon annihilations of ortho-positronium atoms to estimate their spin polarisation without magnetic field or polarised positronium source. We use a plastic-scintillator-based positron-emission-tomography scanner to record ortho-positronium (o-Ps) annihilations with single-event estimation of o-Ps spin and determine the complete spectrum of an angular correlation operator sensitive to CPT-violating effects. We find no violation at the precision level of 10−4, with an over threefold improvement on the previous measurement.Nature Communications 12 (2021) Article number: 5658
Frans Habraken Best Paper Award 2021 for Dr. Katarzyna Gajos
I am delighted to inform you that the editors of the Applied Surface Science journal (IF = 6.707) honored Dr. Katarzyna Gajos with the "Frans Habraken Best Paper Award 2021" for the work "Surface density dependent orientation and immunological recognition of antibody on silicon: TOF-SIMS and surface analysis of two covalent immobilization methods ”(DOI: 10.1016 / j.apsusc.2020.146269).
This award, commemorating Professor Frans Habraken, longtime editor of Applied Surface Science, has been awarded annually since 2014 to the first (or corresponding) author, aged up to 30, of the best scientific article published in this journal in the previous year. When choosing, the team of editors is guided by criteria such as the originality of the work, its scientific significance, and the interest of readers.
The distinguished work describes the research carried out by the team from the M. Smoluchowski Institute of Physics at the Jagiellonian University, composed of dr Katarzyna Gajos, mgr Klaudia Szafraniec, prof. dr hab. Andrzej Budkowski, in collaboration with Dr. Panagiota Petrou from NCSR DEMOKRITOS from Athens. Using TOF-SIMS Secondary Ion Mass Spectroscopy, the dominant orientation of the detection molecules (antibodies) was determined directly depending on the density of their coverage of the biosensor surface. As the orientation of antibodies is crucial for antigen recognition, the presented studies can help improve biosensors' efficiency and sensitivity by optimizing the methods of coating the biosensor surface with antibodies.
Professor nomination - prof. Monika Marzec
On 17 June 2021 the President of the Republic of Poland Andrzej Duda signed the professor nomination of dr hab. Monika Marzec from our Institute.
Presentations of candidates for the positions of assistant and assistant professors - June 10, 2021Ladies and gentlemen,
Director of the Institute of Physics Marian Smoluchowski, the Jagiellonian University kindly informs that the presentations of candidates for the positions of assistant and assistant professors will take place on June 10, 2021 on the MSTeams platform according to the attached schedule.
Persons wishing to participate in public auditions of candidates and having an e-mail account in the "uj.edu.pl" domain (and thus access to the UJ organization in Microsoft Teams) can join the "UJ-WFAIS IFMS Candidate Presentations" team created for this purpose access code: uwef9by
To do this, in the Microsoft Teams application, select the "Teams" tab and then "All Teams" -> "Join a team or create a new one" -> "Join a team by entering the code" and enter the above access code. In the event of technical problems, please contact us at the following address :firstname.lastname@example.org.
People who do not have an e-mail account in the "uj.edu.pl" domain and want to join the team are asked to send a message to the following address :email@example.com in order to gain access by June 9 this year at the latest. until 12:00. After gaining access to the "UJ-WFAIS IFMS Candidate Presentations" team, please enter the "General" channel where the scheduled meeting (candidates' presentations) will take place.
We invite all interested parties IFMS Director
Institute deadline for submitting applications for promotion to the position of university professor
I would like to inform you that applications for promotion to the position of university professor should be submitted to the secretary's office of the Director of the Institute of Physics of the Jagiellonian University M Smoluchowski with Mr. Alicja Mysłek, by June 1, 2021.
The above date is earlier than the date set by the Dean of WFAIS. However, according to §10 point 1 of the promotion procedure, "The Dean of the Faculty shall submit an application for promotion to the position of university professor from the director of the institute in which the academic teacher who is a candidate for promotion is employed". Therefore, I would like to have time to read the conclusions calmly.
/ Director of the Institute of Physics of the Jagiellonian University M. Smoluchowski /
Competition for two ADIUNKT positions in the group of research and teaching staff at the Institute of Physics in the field of physics or biophysics - ad expired
The Rector of the Jagiellonian University announces a competition for two ADIUNKT positions in the group of research and teaching staff at the Institute of Physics at the Faculty of Physics, Astronomy and Applied Computer Science of the Jagiellonian University in the field of physics or biophysics.
Competition start date: April 28, 2021
The deadline for submitting applications is May 28, 2021
The competition will be adjudicated by June 24, 2021
Competition for the position of an ASSISTANT at the Institute of Physics of the Jagiellonian University in the field of physics or biophysics - ad expired
The Rector of the Jagiellonian University announces a competition for the position of ASSISTANT in the group of research and teaching staff at the Institute of Physics of the Jagiellonian University at the Faculty of Physics, Astronomy and Applied Computer Science of the Jagiellonian University in the field of physics or biophysics.
Professor nomination - prof. Jakub Rysz
On February 11, 2021 the President of the Republic of Poland Andrzej Duda signed the professor nomination of dr hab. Jakub Rysz from our Institute.
Professor nomination - prof. Janusz Brzychczyk
On January 20, 2021 the President of the Republic of Poland, Andrzej Duda, signed the professor nomination of dr hab. Janusz Brzychczyk from our Institute..
Professor nominations - prof. Piotr Cyganik, Hubert Harańczyk, Ewa Stępień
On 4 January 2021 the President of the Republic of Poland Andrzej Duda signed the professor nomination of dr hab. Piotr Cyganik, dr hab. Hubert Harańczyk and dr hab. Ewa Stępień from our Institute..