Publications by authors named "Fuhrer M"

Van der Waals electrode integration is a promising strategy to create nearly perfect interfaces between metals and 2D materials, with advantages such as eliminating Fermi-level pinning and reducing contact resistance. However, the lack of a simple, generalizable pick-and-place transfer technology has greatly hampered the wide use of this technique. We demonstrate the pick-and-place transfer of prefabricated electrodes from reusable polished hydrogenated diamond substrates without the use of any sacrificial layers due to the inherent low-energy and dangling-bond-free nature of the hydrogenated diamond surface.

View Article and Find Full Text PDF

Background: Cystic Fibrosis is caused by recessively inherited variants of the cystic fibrosis transmembrane regulator. It is associated with diverse clinical presentations that can affect the respiratory, digestive, and reproductive systems and inhibit nutrient absorption and growth.

Main Body: The current estimation of people affected by Cystic Fibrosis is likely underestimated as this disease remains undiagnosed in countries with limited diagnostic capacity.

View Article and Find Full Text PDF

Two-dimensional semiconducting transition metal dichalcogenides are promising materials for optoelectronic applications due to their strongly bound excitons. While bright excitons have been thoroughly scrutinized, dark excitons have been much less investigated, as they are not directly observable with far-field spectroscopy. However, with their nonzero momenta, dark excitons are significant for applications requiring long-range transport or coupling to external fields.

View Article and Find Full Text PDF

Intercalation is a promising technique to modify the structural and electronic properties of 2D materials on the wafer scale for future electronic device applications. Yet, few reports to date demonstrate 2D intercalation as a viable technique on this scale. Spurred by recent demonstrations of mm-scale sensors, we use hydrogen intercalated quasi-freestanding bilayer graphene (hQBG) grown on 6H-SiC(0001), to understand the electronic properties of a large-area (16 mm) device.

View Article and Find Full Text PDF

In a patient with permanent neonatal syndromic diabetes clinically similar to cases with ONECUT1 biallelic mutations, we identified a disease-causing deletion located upstream of ONECUT1. Through genetic, genomic, and functional studies, we identified a crucial regulatory region acting as an enhancer of ONECUT1 specifically during pancreatic development. This enhancer region contains a low-frequency variant showing a strong association with type 2 diabetes and other glycemic traits, thus extending the contribution of this region to common forms of diabetes.

View Article and Find Full Text PDF

The kagome metal FeSn consists of alternating layers of kagome-lattice FeSn and honeycomb Sn and exhibits great potential for applications in future low-energy electronics and spintronics because of an ideal combination of topological phases and high-temperature magnetic ordering. Robust synthesis methods for ultrathin FeSn films, as well as an understanding of their air stability, are crucial for its development and long-term operation in future devices. In this work, we realize large-area, <10 nm thick, epitaxial FeSn thin films and explore the oxidation process synchrotron-based photoelectron spectroscopy using oxygen and water dosing, as well as air exposure.

View Article and Find Full Text PDF
Article Synopsis
  • The study examines a female carrier of a genetic mutation in the IKBKG gene, which is linked to conditions like ectodermal dysplasia and ectodermal dysplasia and immunodeficiency in males and incontinentia pigmenti (IP) in females, leading to a condition called NEMO-NDAS, characterized by autoinflammatory symptoms.
  • Researchers used various techniques, including RT-PCR and nanopore sequencing, to analyze gene expression and protein levels in the patient and her mother compared to healthy controls.
  • Findings revealed that the patient exhibited autoinflammatory symptoms without immunodeficiency, attributed to a non-skewed X-inactivation, alternative splicing of the IKBKG gene, and increased levels of
View Article and Find Full Text PDF

Background: Caring for parents continuing pregnancy after learning about a severe life-limiting condition in their unborn is challenging. Most existing studies focus on affected families, whereas research on the subjective experience of care professionals is scarce.

Aim: We aimed to (1) explore experiences and needs of involved care professionals, (2) obtain information about existing care structures, and (3) identify requirements for a structured perinatal palliative care program.

View Article and Find Full Text PDF
Article Synopsis
  • * Treatment options varied; two patients received intravenous immunoglobulins, with one recovering slowly and the other needing a stem cell transplant, while two others were treated with immunosuppressive therapy.
  • * Despite the challenges, all patients are currently alive, highlighting that VZV-related BMF is a serious condition that may necessitate stem cell transplantation for recovery.
View Article and Find Full Text PDF
Article Synopsis
  • The Quantum Anomalous Hall (QAH) insulators enable resistance-free charge transport via special edge states, but current systems face limitations with topological protection, especially at higher temperatures.
  • A study using a scanning tunneling microscope reveals that the exchange gap in the QAH insulator 5-layer MnBiTe varies significantly, with fluctuations linked to magnetic disorder rather than surface defects, compromising the stability of these edge states.
  • Applying a small magnetic field can restore the exchange gap in regions affected by disorder, highlighting the importance of managing magnetic disorder to utilize the unique properties of QAH insulators effectively.
View Article and Find Full Text PDF

Three-dimensional Dirac semimetals with square-net non-symmorphic symmetry, such as ternary ZrXY (X = Si, Ge; Y = S, Se, Te) compounds, have attracted significant attention owing to the presence of topological nodal lines, loops, or networks in their bulk. Orbital symmetry plays a profound role in such materials as the different branches of the nodal dispersion can be distinguished by their distinct orbital symmetry eigenvalues. The presence of different eigenvalues suggests that scattering between states of different orbital symmetry may be strongly suppressed.

View Article and Find Full Text PDF

Background: Elevated TCRαβCD4CD8 double-negative T cells (DNT) and serum biomarkers help identify FAS mutant patients with autoimmune lymphoproliferative syndrome (ALPS). However, in some patients with clinical features and biomarkers consistent with ALPS, germline or somatic FAS mutations cannot be identified on standard exon sequencing (ALPS-undetermined: ALPS-U).

Objective: We sought to explore whether complex genetic alterations in the FAS gene escaping standard sequencing or mutations in other FAS pathway-related genes could explain these cases.

View Article and Find Full Text PDF

The highly tunable band structure of the zero-energy Landau level (zLL) of bilayer graphene makes it an ideal platform for engineering novel quantum states. However, the zero-energy Landau level at high electric fields has remained largely unexplored. Here we present magnetotransport measurements of bilayer graphene in high transverse electric fields.

View Article and Find Full Text PDF

Coherent optical manipulation of electronic bandstructures via Floquet Engineering is a promising means to control quantum systems on an ultrafast time scale. However, the ultrafast switching on/off of the driving field comes with questions regarding the limits of the Floquet formalism (which is defined for an infinite periodic drive) through the switching process and to what extent the transient changes can be driven adiabatically. Experimentally addressing these questions has been difficult, in large part due to the absence of an established technique to measure coherent dynamics through the duration of the pulse.

View Article and Find Full Text PDF

Photonic crystals (PhCs) are a kind of artificial structures that can mold the flow of light at will. Polaritonic crystals (PoCs) made from polaritonic media offer a promising route to controlling nano-light at the subwavelength scale. Conventional bulk PhCs and recent van der Waals PoCs mainly show highly symmetric excitation of Bloch modes that closely rely on lattice orders.

View Article and Find Full Text PDF

For mixed MoW carbide catalysts, the relationship between synthesis conditions, evolution of (mixed) phases, extent of mixing, and catalytic performance of supported Mo/W carbides remains unclear. In this study, we prepared a series of carbon nanofiber-supported mixed Mo/W-carbide catalysts with varying Mo and W compositions using either temperature-programmed reduction (TPR) or carbothermal reduction (CR). Regardless of the synthesis method, all bimetallic catalysts (Mo:W bulk ratios of 1:3, 1:1, and 3:1) were mixed at the nanoscale, although the Mo/W ratio in individual nanoparticles varied from the expected bulk values.

View Article and Find Full Text PDF

The presence of the van der Waals gap in layered materials creates a wealth of intriguing phenomena different to their counterparts in conventional materials. For example, pressurization can generate a large anisotropic lattice shrinkage along the stacking orientation and/or a significant interlayer sliding, and many of the exotic pressure-dependent properties derive from these mechanisms. Here we report a giant piezoresistivity in pressurized β'-InSe.

View Article and Find Full Text PDF

Unlabelled: Only a few acute hospital inpatient units dedicated to pediatric palliative care (PPC) patients exist today. Clinical data on the patients and care provided at specialized acute PPC inpatient units (PPCUs) are scarce. This study aims at describing patient and care characteristics on our PPCU to learn about the complexity and relevance of inpatient PPC.

View Article and Find Full Text PDF

Background: Radiographic knee osteoarthritis (OA) severity and clinical severity are often dissociated. Artificial intelligence (AI) aid was shown to increase inter-rater reliability in radiographic OA diagnosis. Thus, AI-aided radiographic diagnoses were compared against AI-unaided diagnoses with regard to their correlations with clinical severity.

View Article and Find Full Text PDF

The electronic correlations (e.g. unconventional superconductivity (SC), chiral charge order and nematic order) and giant anomalous Hall effect (AHE) in topological kagome metals AVSb (A = K, Rb, and Cs) have attracted great interest.

View Article and Find Full Text PDF

Background: Guidelines recommend shared decision making (SDM) between neonatologists and parents when a decision has to be made about the continuation of life-sustaining treatment (LST). In a previous study, we found that neonatologists and parents at a German Level-III Neonatal Intensive Care Unit performed SDM to a variable but overall small extent. However, we do not know whether parents in Germany prefer an extent of more or sharing.

View Article and Find Full Text PDF

We demonstrate a large-area passivation layer for graphene by mechanical transfer of ultrathin amorphous GaO synthesized on liquid Ga metal. A comparison of temperature-dependent electrical measurements of millimeter-scale passivated and bare graphene on SiO/Si indicates that the passivated graphene maintains its high field effect mobility desirable for applications. Surprisingly, the temperature-dependent resistivity is reduced in passivated graphene over a range of temperatures below 220 K, due to the interplay of screening of the surface optical phonon modes of the SiO by high-dielectric-constant GaO and the relatively high characteristic phonon frequencies of GaO.

View Article and Find Full Text PDF

The potential of carbon supported Mo and W carbides to replace Pt is shown for the hydrogenation of cinnamaldehyde. Although the carbide catalysts are 4-6 times less active, both the carbides and Pt are selective towards CC hydrogenation. Unlike Pt, the carbides additionally form β-methylstyrene.

View Article and Find Full Text PDF

In Germany, research on experiences and care pathways of parents continuing pregnancy after a life-limiting fetal diagnosis is scarce. There are several recommendations but few structured programs. We aimed to explore experiences and needs of parents, reconstruct their care pathways, and identify requirements for a perinatal palliative care program.

View Article and Find Full Text PDF

Solid sorbents are essential for developing technologies that directly capture CO from air. In solid sorbents, metal oxides and/or alkali metal carbonates such as potassium carbonate (KCO) are promising active components owing to their high thermal stability, low cost, and ability to chemisorb the CO present at low concentrations in air. However, this chemisorption process is likely limited by internal diffusion of CO into the bulk of KCO.

View Article and Find Full Text PDF