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JOURNAL ARTICLE
Joachim Pander, Johannes Kuhn, Roser Casas-Mulet, Luis Habersetzer, Juergen Geist
Longer durations of warmer weather, altered precipitation, and modified streamflow patterns driven by climate change are expected to impair ecosystem resilience, exposing freshwater ecosystems and their biota to a severe threat worldwide. Understanding the spatio-temporal temperature variations and the processes governing thermal heterogeneity within the riverscape are essential to inform water management and climate adaptation strategies. We combined UAS-based imagery data of aquatic habitats with meteorological, hydraulic, river morphology and water quality data to investigate how key factors influence spatio-temporal stream heterogeneity on a diurnal basis within different thermal regions of a large recently restored Danube floodplain...
February 6, 2024: Science of the Total Environment
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JOURNAL ARTICLE
Adel Abdel-Moneim, Rania Mahmoud, Gamal Allam, Basant Mahmoud
UNLABELLED: The metabolic syndrome (MetS) is a serious public health issue that affects people all over the world. Notably, insulin resistance, prothrombotic activity, and inflammatory state are associated with MetS. This study aims to explore the relationship between cytokines and tumor necrosis factor-α (TNF-α), pancreatic-derived factor (PANDER), and interleukin (IL-)-37 and the accumulation of MetS components. Eligible participants were divided into four groups as follows: group 1, patients with dyslipidemia; group 2, patients with dyslipidemia and obesity; group 3, patients with dyslipidemia, obesity, and hypertension; and group 4, patients with dyslipidemia, obesity, hypertension, and hyperglycemia...
January 2024: Indian Journal of Clinical Biochemistry: IJCB
#3
JOURNAL ARTICLE
Alejandro Galán-González, Piotr Pander, Roderick C I MacKenzie, Leon Bowen, Dagou A Zeze, Robert J Borthwick, Richard L Thompson, Fernando B Dias, Mujeeb Ullah Chaudhry
We report on the mechanism of enhancing the luminance and external quantum efficiency (EQE) by developing nanostructured channels in hybrid (organic/inorganic) light-emitting transistors (HLETs) that combine a solution-processed oxide and a polymer heterostructure. The heterostructure comprised two parts: (i) the zinc tin oxide/zinc oxide (ZTO/ZnO), with and without ZnO nanowires (NWs) grown on the top of the ZTO/ZnO stack, as the charge transport layer and (ii) a polymer Super Yellow (SY, also known as PDY-132) layer as the light-emitting layer...
December 20, 2023: ACS Photonics
#4
JOURNAL ARTICLE
Piotr Pander, Andrey V Zaytsev, Amit Sil, Glib V Baryshnikov, Farhan Siddique, J A Gareth Williams, Fernando B Dias, Valery N Kozhevnikov
The high luminescence efficiency of cyclometallated iridium(iii) complexes, including those widely used in OLEDs, is typically attributed solely to the formally spin-forbidden phosphorescence process being facilitated by spin-orbit coupling with the Ir(iii) centre. In this work, we provide unequivocal evidence that an additional mechanism can also participate, namely a thermally activated delayed fluorescence (TADF) pathway. TADF is well-established in other materials, including in purely organic compounds, but has never been observed in iridium complexes...
December 6, 2023: Chemical Science
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JOURNAL ARTICLE
Marc G Vervloet, Hilda Ji de Jong, Jan Pander, Jetty A Overbeek
BACKGROUND: Knowledge on prevalence, comorbidities and consequences of chronic kidney disease (CKD) is mandatory to estimate the potential of cardiovascular risk management on a population level. We studied the prevalence of CKD with or without type 2 diabetes mellitus (T2D) and/or heart failure and its cardiorenal complications in The Netherlands. METHODS: A descriptive cross-sectional and longitudinal cohort study was performed, using data from the Dutch PHARMO Data Network...
November 13, 2023: BMC Nephrology
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JOURNAL ARTICLE
Piotr Pander, Andrey V Zaytsev, Larissa Gomes Franca, Fernando B Dias, Valery N Kozhevnikov
In this work, we introduce a spiro-fluorene unit into a phenylpyridine (CN)-type ligand as a simple way to deplanarize the structure and increase the solubility of the final platinum(II)···complex. Using a spiro-fluorene unit, orthogonal to the main coordination plane of the complex, reduces intermolecular interactions, leading to increased solubility but without significantly affecting the ability of the complex to form Pt···Pt dimers and excimers. This approach is highly important in the design of platinum(II) complexes, which often suffer from low solubility due to their mainly planar structure, and offers an alternative to the use of bulky alkyl groups...
October 31, 2023: Inorganic Chemistry
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JOURNAL ARTICLE
Ling Pei, Fenghua Lai, Wenzhan Chen, Rui Zeng, Nan Chen, Yanbing Li, Haipeng Xiao, Xiaopei Cao
AIM: To clarify whether pancreatic derived factor (PANDER) predicts the remission of impaired glucose tolerance (IGT) due to lifestyle intervention among women with history of gestational diabetes mellitus (GDM). METHODS: IGT women with GDM history in a prospective cohort study were enrolled at 4-12 weeks postpartum and grouped based on PANDER level at recruitment. After lifestyle intervention, glucose metabolism examined was performed at one year postpartum. The relation between PANDER level and glycemic outcome was analyzed with logistic regression and receiver operating characteristic (ROC) curves...
August 30, 2023: Diabetes Research and Clinical Practice
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JOURNAL ARTICLE
Daisuke Kitayama, Adam Pander, Yuto Hama, Hiroyuki Takahashi
To achieve high-speed, large-capacity communication, next-generation mobile communication systems will require manipulation of the propagation of sub-terahertz waves in the propagation channel. In this paper, we propose the use of a novel split-ring resonator (SRR) structure as a metasurface unit cell for manipulating the linearly polarized incident and transmission waves used in mobile communication systems. In this SRR structure, the gap is twisted by 90° to efficiently use cross-polarized scattered waves...
June 19, 2023: Optics Express
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JOURNAL ARTICLE
Maryam Kianpour, Ching-Wen Huang, Pichpisith Pierre Vejvisithsakul, Jaw-Yuan Wang, Chien-Feng Li, Meng-Shin Shiao, Cheng-Tang Pan, Yow-Ling Shiue
The objectives were to identify the functional domains of a potential oncoprotein, cell migration inducing hyaluronidase 2 (CEMIP2), evaluate its expression levels and roles in colorectal cancer (CRC), and develop an aptamer-based nanoparticle for targeted therapy. Data mining on TCGA identified that CEMIP2 might play oncogenic roles in CRC. In a local cohort, CEMIP2 mRNA levels significantly stepwise increase in CRC patients with higher stages, and high CEMIP2 confers worse disease-free survival. In addition, CEMIP2 mRNA levels significantly correlated to hyaluronan levels in sera from CRC patients...
June 21, 2023: International Journal of Biological Macromolecules
#10
EDITORIAL
Heidi L Lujan, Stephen E DiCarlo
Pre-clinical medical education has lost its way. In fact, it seems that pre-clinical medical education has forgotten its mission and has become focused on assembly line efficiency and profits. Administrators and students are increasingly considering pre-clinical medical education as a market with credentials (access to USMLE Step 1 or COMLEX Level 1) the commodity and students the consumers. Consider that, once banned, for-profit medical schools are on the rise in the USA. In response to these changes, medical schools are adopting corporate models, cutting costs, and seeking profit-making opportunities...
June 1, 2023: Advances in Physiology Education
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JOURNAL ARTICLE
Paulina H Marek-Urban, Karolina A Urbanowicz, Karolina Wrochna, Piotr Pander, Agata Blacha-Grzechnik, Simone T Hauer, Henning R V Berens, Krzysztof Woźniak, Thomas J J Müller, Krzysztof Durka
Invited for the cover of this issue are Krzysztof Durka and co-workers at Warsaw University of Technology, University of Warsaw, Silesian University of Technology and Heinrich-Heine-Universität. The image depicts the generation of singlet oxygen by the BODIPY photosensitizer. Read the full text of the article at 10.1002/chem.202300680.
May 26, 2023: Chemistry: a European Journal
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JOURNAL ARTICLE
Radosław Motyka, Klaudia Nastula, Piotr Pander, Damian Honisz, Mateusz Tomczyk, Karol Erfurt, Agata Blacha-Grzechnik
Fullerenes have been long investigated for application as singlet oxygen sources. Even though they possess high photosensitizing efficiency, their practical use is still limited, mostly because of insufficient absorption of visible and/or near-infrared light. This limitation can be overcome by introducing organic chromophores that absorb longer-wavelength light, either by covalent attachment to C60 or by its encapsulation in a polymeric matrix. In this work, we investigated the photosensitizing properties of the C60 molecule functionalized with organic units comprising thiophene or selenophene rings...
March 24, 2023: Materials
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JOURNAL ARTICLE
Piotr Pander, Larissa Gomes Franca, Fernando B Dias, Valery N Kozhevnikov
Alkylation of one of the phenolic hydroxyl groups in a salen-type tetradentate ligand changes the coordination mode from O^N^N^O to the cyclometallating C^N^N^O type. The ligand was used to synthesize a new cyclometalated luminescent Pt(II) complex 2 . While in solution the complex is poorly luminescent, in the solid state the emission is reinstated, which allowed one to evaluate complex 2 as a phosphorescent emitter in organic light-emitting diodes. 2 displays external quantum efficiency (EQE) = 9.1% and a maximum luminance of 9000 cd m-2 in a vacuum-deposited device...
March 30, 2023: Inorganic Chemistry
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JOURNAL ARTICLE
Paulina H Marek-Urban, Karolina A Urbanowicz, Karolina Wrochna, Piotr Pander, Agata Blacha-Grzechnik, Henning R V Berens, Krzysztof Woźniak, Thomas J J Müller, Krzysztof Konrad Durka
A synthetic approach to two regioisomeric π-electron extended [1,4]thiaborins anellated with two benzothiophene units was developed. Obtained boracycles exhibit different electronic properties of the central thiaborin ring reflected in their different aromatic characters, boron Lewis acidity and UV-Vis spectroscopic behavior. Thiaborins were converted to boron dipyrromethene (BODIPY) complexes. Their emission spectra exhibit two distinct bands resulting from 1LE and 1CT transitions. Strong near infrared phosphorescence in Zeonex thin films at 77 K indicates efficient intersystem crossing and formation of triplet states...
March 29, 2023: Chemistry: a European Journal
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JOURNAL ARTICLE
Carina B Fialho, Tiago F C Cruz, Ana I Rodrigues, Maria José Calhorda, Luís F Vieira Ferreira, Piotr Pander, Fernando B Dias, Jorge Morgado, António L Maçanita, Pedro T Gomes
Six new four-coordinate tetrahedral boron complexes, containing 9-borafluoren-9-yl and diphenylboron cores attached to orthogonal fluorine- and chlorine-substituted 8-quinolinolato ligand chromophores, have been synthesised, characterised, and applied as emitters in organic light-emitting diodes (OLEDs). An extensive steady-state and time-resolved photophysical study, in solution and in the solid state, resulted in the first-time report of delayed fluorescence (DF) in solid films of 8-quinolinolato boron complexes...
March 23, 2023: Dalton Transactions: An International Journal of Inorganic Chemistry
#16
JOURNAL ARTICLE
Marc Ledendecker, Paul Paciok, Wojciech T Osowiecki, Marc Pander, Marc Heggen, Daniel Göhl, Gaurav A Kamat, Andreas Erbe, Karl J J Mayrhofer, A Paul Alivisatos
Core-shell particles with thin noble metal shells represent an attractive material class with potential for various applications ranging from catalysis to biomedical and pharmaceutical applications to optical crystals. The synthesis of well-defined core-shell architectures remains, however, highly challenging. Here, we demonstrate that atomically-thin and homogeneous platinum shells can be grown via a colloidal synthesis method on a variety of gold nanostructures ranging from spherical nanoparticles to nanorods and nanocubes...
June 6, 2022: Communications Chemistry
#17
JOURNAL ARTICLE
Marzena Pander, Rodrigo Gil-San-Millan, Pedro Delgado, Cristina Perona-Bermejo, Urszula Kostrzewa, Karol Kaczkowski, Dominik J Kubicki, Jorge A R Navarro, Wojciech Bury
We use the free radical polymerization initiator 4,4'-azobis(cyanovaleric acid) coordinated to the open metal sites of metal-organic frameworks (MOFs) to give rise to highly uniform MOF/polymer hybrids. We demonstrate this strategy on two robust zirconium MOFs (NU-1000 and MOF-808), which are the most effective catalysts for degradation of chemical warfare nerve agents. The resulting hybrid materials maintain their hydrolytic catalytic activity and have substantially improved adhesion to polypropylene and activated carbon textile fibers, yielding highly robust MOF/polymer/textile hybrid systems...
January 19, 2023: Materials Horizons
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JOURNAL ARTICLE
Mateusz Urban, Paulina H Marek-Urban, Krzysztof Durka, Sergiusz Luliński, Piotr Pander, Andrew P Monkman
10H-Dibenzo[b,e][1,4]thiaborinine 5,5-dioxide (SO2B)-a high triplet (T1 =3.05 eV) strongly electron-accepting boracycle was successfully utilised in thermally activated delayed fluorescence (TADF) emitters PXZ-Dipp-SO2B and CZ-Dipp-SO2B. We demonstrate the near-complete separation of highest occupied and lowest unoccupied molecular orbitals leading to a low oscillator strength of the S1 →S0 CT transition, resulting in very long ca. 83 ns and 400 ns prompt fluorescence lifetimes for CZ-Dipp-SO2B and PXZ-Dipp-SO2B, respectively, but retaining near unity photoluminescence quantum yield...
January 9, 2023: Angewandte Chemie
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JOURNAL ARTICLE
Richard Gallon, Rachel Phelps, Christine Hayes, Laurence Brugieres, Léa Guerrini-Rousseau, Chrystelle Colas, Martine Muleris, Neil A J Ryan, D Gareth Evans, Hannah Grice, Emily Jessop, Annabel Kunzemann-Martinez, Lilla Marshall, Esther Schamschula, Klaus Oberhuber, Amedeo A Azizi, Hagit Baris Feldman, Andreas Beilken, Nina Brauer, Triantafyllia Brozou, Karin Dahan, Ugur Demirsoy, Benoît Florkin, William Foulkes, Danuta Januszkiewicz-Lewandowska, Kristi J Jones, Christian P Kratz, Stephan Lobitz, Julia Meade, Michaela Nathrath, Hans-Jürgen Pander, Claudia Perne, Iman Ragab, Tim Ripperger, Thorsten Rosenbaum, Daniel Rueda, Tomasz Sarosiek, Astrid Sehested, Isabel Spier, Manon Suerink, Stefanie-Yvonne Zimmermann, Johannes Zschocke, Gillian M Borthwick, Katharina Wimmer, John Burn, Michael S Jackson, Mauro Santibanez-Koref
BACKGROUND & AIMS: Constitutional mismatch repair deficiency (CMMRD) is a rare recessive childhood cancer predisposition syndrome caused by germline mismatch repair (MMR) variants. Constitutional microsatellite instability (cMSI) is a CMMRD diagnostic hallmark and may associate with cancer risk. We quantified cMSI in a large CMMRD patient cohort to explore genotype-phenotype correlations, using novel MSI markers selected for instability in blood. METHODS: Three CMMRD, one Lynch syndrome (LS), and two control blood samples were genome sequenced to >120x depth...
December 28, 2022: Gastroenterology
#20
JOURNAL ARTICLE
Paulina Powroźnik, Barbara Solecka, Piotr Pander, Wiesław Jakubik, Fernando B Dias, Maciej Krzywiecki
Rapid and accurate detection of lethal volatile compounds is an emerging requirement to ensure the security of the current and future society. Since the threats are becoming more complex, the assurance of future sensing devices' performance can be obtained solely based on a thorough fundamental approach, by utilizing physics and chemistry together. In this work, we have applied thermal desorption spectroscopy (TDS) to study dimethyl methylophosphate (DMMP, sarin analogue) adsorption on zinc phthalocyanine (ZnPc), aiming to achieve the quantification of the sensing mechanism...
December 16, 2022: Sensors
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