bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chemiluminescence resonance energy transfer-based multistage nucleic acid amplification circuits for MiRNA detection with low background
Authors: Kang Nana , Weng Benrui , Liu Sijia , Yang Huiran , Wang Siyuan , Liu Yaqi , Ran Jiabing , Liu Hanghang , Deng Zhangshuang , Yang Changying , Wang Huimin , Wang Fuan 
Published: May 2023

The CRET-based multi-stage DNA circuit is a general sensing strategy for the sensitive and specific miRNA detection, which achieved amplified CRET signal transduction of target and realized the intracellular miRNA imaging with low background.
Intrinsic point defects and the n- and p-type dopability in α- and β-Bi2O3 photocatalysts
Authors: Wang Jincheng , Liu Zuoyin , Kong Bo , An Xinyou , Zhang Min , Wang Wentao 
Published: May 2023

The n- or p-type doping mechanisms in α- and β-Bi2O3 photocatalysts are systemically explored under the different thermal equilibrium growth conditions using hybrid density functional calculations.
Efficient electroreduction of CO to acetate using a metal–azolate framework with dicopper active sites
Authors: Zhu Hao-Lin , Han Yu-Xuan , Liao Pei-Qin , Chen Xiao-Ming 
Published: May 2023

The dicopper site in a metal–azolate framework result in an enhanced electroreduction selectivity and current density of CO for yielding acetate.
Research on eigenparameters and detection methods for single‐phase‐to‐ground faults in non‐effectively grounded distribution systems
Authors: Sheng Wanxing , Song Xiaohui 
Published: May 2023

AbstractNon‐effectively grounded power distribution systems (NGDS) are widely used in China and other countries. However, over a long time, single‐phase‐to‐ground faults (SGF) have been misjudged or omitted by the monitoring system, threatening the security of the power supply system and human safety. Based on the reason analysis for the omitted and misjudged SGFs in NGDS, the concept of NGDS fault eigenparameters to correctly reflect fault characteristics and a method of SGF detection based on fault eigenparameters are proposed. Then, the detection mechanism of phase voltage and fault current resistive elements for SGF is revealed. The variation characteristics of typical fault parameters changing with distribution system scale (parameter) and fault transition resistance, such as residual voltage and Zero‐sequence current (iA‐iO), are analysed. The eigenparameters of SGF in certain NGDS with specific scales/parameters are also proposed, which can correctly reflect the fault characteristics under different transition resistances.
Impact of probe-induced abdominal compression on two-dimensional shear wave elastography measurement of split liver transplants in children
Authors: Groth Michael , Fischer Lutz , Herden Uta , Brinkert Florian , Beime Jan , Deindl Philipp , Adam Gerhard , Herrmann Jochen 
Published: May 2023

Purpose To evaluate the effect of probe-induced abdominal compression of split liver transplants (SLT) in children on 2D-shear wave elastography (SWE) values.
Materials and Methods Data from 11 children (4.7 ± 4.8 years) who had undergone SLT and SWE were evaluated retrospectively. Elastograms were obtained with probes placed in an epigastric, midline position on the abdominal wall, with no and slight compression, using convex and linear transducers. For each identically positioned probe and condition, 12 serial elastograms were obtained and the SLT diameter was measured. Liver stiffness and degree of SLT compression were compared.
Results Slight probe pressure resulted in SLT compression, with a shorter distance between the cutis and the posterior margin of the liver transplant than in the measurement with no pressure (curved array, 5.0 ± 1.1 vs. 5.9 ± 1.3 cm, mean compression 15 %± 8 %; linear array, 4.7 ± 0.9 vs. 5.3 ± 1.0 cm, mean compression 12 %± 8 %; both p < 0.0001). The median liver stiffness was significantly greater with slight pressure than with no pressure (curved transducer, 13.38 ± 3.0 vs. 7.02 ± 1.7 kPa, p < 0.0001; linear transducer, 18.53 ± 7.1 vs. 9.03 ± 1.5 kPa, p = 0.0003).
Conclusion Slight abdominal compression can significantly increase SWE values in children with left-lateral SLT. To obtain meaningful results and reduce operator dependency in free-hand examinations, probe pressure must be controlled carefully.
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Importance and potential of simulation training in interventional radiology
Authors: Kreiser Kornelia , Sollmann Nico , Renz Martin 
Published: May 2023

Background Simulation training is a common method in many medical disciplines and is used to teach content knowledge, manual skills, and team skills without potential patient danger.
Methods Simulation models and methods in interventional radiology are explained. Strengths and weaknesses of both simulators for non-vascular and vascular radiological interventions are highlighted and necessary future developments are addressed.
Results Both custom-made and commercially available phantoms are available for non-vascular interventions. Interventions are performed under ultrasound guidance, with computed tomography assistance, or using mixed-reality methods. The wear and tear of physical phantoms can be countered with in-house production of 3D-printed models. Vascular interventions can be trained on silicone models or hightech simulators. Increasingly, patient-specific anatomies are replicated and simulated pre-intervention. The level of evidence of all procedures is low.
Conclusion Numerous simulation methods are available in interventional radiology. Training on silicone models and hightech simulators for vascular interventions has the potential to reduce procedural time. This is associated with reduced radiation dose for both patient and physician, which can also contribute to improved patient outcome, at least in endovascular stroke treatment. Although a higher level of evidence should be achieved, simulation training should already be integrated into the guidelines of the professional societies and accordingly into the curricula of the radiology departments.
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Synthesis and Evaluation of Fluorous-Tagged and Polystyrene-Supported Precursors for Fluoro-benziodoxole
Authors: Valliant John F. , Murphy Graham K. , Racicot Léanne 
Published: May 2023

AbstractFluoro-benziodoxole, a fluorinated hypervalent iodine (HVI) reagent, has been prepared by fluoride exchange with fluorous- or polystyrene-based sulfonyloxy-benziodoxole precursors. Key to this strategy was the facile O-sulfonylation of a common hydroxy-benziodoxole precursor with sulfonyl chlorides, which enabled the easy synthesis and evaluation of previously unknown fluorous- or polystyrene-based fluoride exchange precursors. Fluorination of a fluorous-tagged iodane led to fluoro-benziodoxole in 67% yield in 10 minutes with TBAF, whereas fluoride exchange on the polystyrene-supported iodane led to the fluoro-benziodoxole in 82 ± 5% yield upon reacting with TBAF for 10 minutes.
Endoscopic resection of early esophageal tumors in patients with cirrhosis or portal hypertension: a multicenter observational study
Authors: Simonnot Mathilde , Deprez Pierre H. , Pioche Mathieu , Albuisson Eliane , Wallenhorst Timothée , Caillol Fabrice , Koch Stéphane , Coron Emmanuel , Archambeaud Isabelle , Jacques Jérémie , Basile Paul , Caillo Ludovic , Degand Thibault , Lepilliez Vincent , Grandval Philippe , Culetto Adrian , Vanbiervliet Geoffroy , Camus Duboc Marine , Gronier Olivier , Leal Carina , Albouys Jérémie , Chevaux Jean-Baptiste , Barret Maximilien , Schaefer Marion 
Published: May 2023

Background Liver cirrhosis and esophageal cancer share several risk factors, such as alcohol intake and excess weight. Endoscopic resection is the gold standard treatment for superficial tumors. Portal hypertension and coagulopathy may increase the bleeding risk in these patients. This study aimed to assess the safety and efficacy of endoscopic resection for early esophageal neoplasia in patients with cirrhosis or portal hypertension.
Methods This retrospective multicenter international study included consecutive patients with cirrhosis or portal hypertension who underwent endoscopic resection in the esophagus from January 2005 to March 2021.
Results 134 lesions in 112 patients were treated, including by endoscopic submucosal dissection in 101 cases (75 %). Most lesions (128/134, 96 %) were in patients with liver cirrhosis, with esophageal varices in 71 procedures. To prevent bleeding, 7 patients received a transjugular intrahepatic portosystemic shunt, 8 underwent endoscopic band ligation (EBL) before resection, 15 received vasoactive drugs, 8 received platelet transfusion, and 9 underwent EBL during the resection procedure. Rates of complete macroscopic resection, en bloc resection, and curative resection were 92 %, 86 %, and 63 %, respectively. Adverse events included 3 perforations, 8 delayed bleedings, 8 sepsis, 6 cirrhosis decompensations within 30 days, and 22 esophageal strictures; none required surgery. In univariate analysis, cap-assisted endoscopic mucosal resection was associated with delayed bleeding (P = 0.01).
Conclusions In patients with liver cirrhosis or portal hypertension, endoscopic resection of early esophageal neoplasia appeared to be effective and should be considered in expert centers with choice of resection technique, following European Society of Gastrointestinal Endoscopy guidelines to avoid undertreatment.
ortho-Heterobimetallic Arylene Complex: A New Platform for Regioselective Difunctionalization
Authors: Duan Xin-Fang , Wei Yi-Ming , Ma Xiao-Di 
Published: May 2023

AbstractRegioselective ortho difunctionalization of arenes is highly desirable yet challenging in organic synthesis. Here, we briefly discuss various methods for ortho difunctionalization of arenes and highlight a novel ortho-heterobimetallic arylene complex enabled by heterobimetallic synergism, which shows great potential in regioselective ortho difunctionalizations.1	Introduction2	Distinct Reactivity of C–Fe and C–Ti Bonds3	E/E′ ODFs by Fe/Ti-Heterobimetallic Intermediate4	Nu/E ODFs by Fe/Ti -Heterobimetallic Intermediate5	Summary and Outlook
Hierarchical Supramolecular Nanostructures of Cyclic Hydrogen-Bonding Catemers in Dibenzo[a,c]phenazinecarboxylic Acid Discotic Liquid Crystals
Authors: Ong Chi Wi , Lee Shern-Long , Chen Yi-Ru , Zhang Yong-Yun , Yeh Ming-Che , Ye Kai-shiang , Hsieh Shu-Chen , Cheng Kum-Yi , Chen Chun-hsien 
Published: May 2023

AbstractThe hydrogen-bonding motif of dibenzo[a,c]phenazinecarboxylic acids can be enforced to form hierarchical cyclic hydrogen-bonded trimers for creating a 3D Colh assembly at the mesophase, as demonstrated by X-ray diffraction. Scanning tunneling microscopy was used to characterize the formation of the cyclic trimers. Atomic force microscopy revealed the formation of nanopillars on a hydrophilized silica surface upon annealing from isotropic to room temperature.
Synthetic Studies toward the Myrioneuron Alkaloids
Authors: Smith Myles W. , Aquilina Jake M. 
Published: May 2023

AbstractThe Myrioneuron alkaloids are a relatively small family of plant-derived alkaloids that present an intriguing array of structural intricacy and biological properties. As such, these natural products have drawn interest from the synthetic community, resulting in creative total syntheses of several family members. This review showcases recent synthetic efforts towards these polycyclic alkaloids.1	Introduction1.1	Biological Activity1.2	Proposed Biosynthesis2	Synthetic Studies toward the Myrioneuron Alkaloids2.1	Total Synthesis of Myrioxazines A and B2.2	Total Synthesis of Myrionine, Myrionidine, and Schoberine2.3	Total Synthesis of Myrifabrals A and B2.4	Total Synthesis of Myrioneurinol3	Conclusions and Outlook
Safety of Drainless Donor Closure in DIEP Flap-Based Breast Reconstruction: A Prospective Analysis Using Ultrasound
Authors: Kim Jina , Lee Kyeong-Tae , Mun Goo-Hyun 
Published: May 2023

Abstract
Background Although drainless donor closure with progressive tension suture (PTS) technique has been attempted to further reduce donor morbidity in deep inferior epigastric perforator (DIEP) flap-based breast reconstruction, its clinical safety has not yet been fully elucidated. This study prospectively investigated donor morbidity after DIEP flap elevation and drain-free donor closure.
Methods A prospective cohort study was performed on 125 patients who underwent DIEP flap-based breast reconstruction and drainless donor closure. Postoperatively, the donor site was evaluated repetitively using ultrasonography. Development of donor complications, including any fluid accumulation and seroma (defined as detection of fluid accumulation after postoperative one month), was prospectively noted, and independent predictors for the adverse events were evaluated.
Results On ultrasound examination conducted within postoperative 2 weeks, 48 patients were detected to have fluid accumulation at the donor site, which were more frequently detected in cases of delayed reconstruction and those with lesser number of PTS conducted. The majority of those events (95.8%) were resolved with one- or two-times ultrasound-guided aspirations. Five patients (4.0%) showed persistent fluid accumulation after postoperative 1 month, which were successfully treated with repetitive aspiration without requiring reoperation. No other abdominal complications developed except for three of delayed wound healing. On multivariable analyses, harvesting larger-sized flap and conducting lesser number of PTS were independent predictors for the development of fluid accumulation.
Conclusion The results of this prospective study suggest that drainless donor closure of the DIEP flap with meticulous placement of PTS followed by postoperative ultrasound surveillance appears to be safe and effective.
Direct measurement of charge trap depth in polymer nanocomposites
Authors: Suzuki Haruto , Kubo Yugo , Sekiguchi Yoitsu , Kobayashi Masaki , Kumada Akiko , Sato Masahiro 
Published: May 2023

Abstract
Polymer nanocomposites (PNCs) exhibit excellent electrical properties owing to charge trapping provided by nanofillers. However, the role of nanofillers in trap formation at the microscopic level is poorly understood. In this study, we propose a method to determine the charge trap depth of nanofillers in PNCs using x-ray photoelectron spectroscopy (XPS) measurements and first-principles calculations. The low-density polyethylene (PE)/TiO2 nanocomposite is selected as the measurement target as it was previously reported the charges are trapped by TiO2 loading to PE. We observe TiO2 can serve as a trap for holes, and the trap depth is determined to be 0.9 eV. Furthermore, the computed charge trap depth calculated by G
0
W
0 calculation, which reproduce the experimental band gap, is comparable to the XPS result, which strongly supports the validity of our method. In addition, owing to the quantitative evaluation of the electronic structure, it was shown that the charge trap depth of the nanofiller can be controlled by tuning the surface dipole with surface modification of the nanofiller. The approach proposed in this study to determine the charge trap depth of nanofillers provides the prospect of designing PNCs with desirable properties from the atomic or molecular level.
Thickness-dependent optical characteristics of WS2 flakes prepared by Au- and Ag-assisted exfoliation
Authors: Cho Eunseo , Nguyen Anh Thi , Lim Seoyeong , Cho Jungyoon , Song Jungeun , Kwon Soyeong , Kim Dong-Wook 
Published: May 2023

Abstract
WS2 flakes with a number of layers (N
WS2) ranging from 1 to 10 are exfoliated on ultraflat template-stripped Au and Ag layers. The apparent colors of WS2/Au and WS2/Ag strongly depend on the underlying metal layers as well as N
WS2. The measured and calculated optical reflectance spectra are in good agreement, confirming the identification of N
WS2 for each flake. The absorption in the WS2 flake for WS2/Au (A
WS2–Au) and WS2/Ag (A
WS2–Ag) is calculated: the maximum value of A
WS2–Ag for N
WS2 = 10 (∼0.93) is much larger than that of A
WS2–Au (∼0.5). As expected, the local maxima of A
WS2–Au and A
WS2–Ag for each N
WS2 are found near the exciton resonance wavelengths of WS2. The largest peak of A
WS2–Ag is located close to the C exciton resonance wavelength, and the peak position shows a redshift with increasing N
WS2. Despite the extremely small flake thickness, the optical resonant modes can appear in WS2/Au and WS2/Ag, according to the anticipated phase shifts of light. These resonant modes can explain how N
WS2 and the metal layer affect the optical characteristics of the WS2/metal structures.
Non-equivalent nature of acetylenic bonds in typical square graphynes and intricate negative differential resistance characteristics
Authors: Nath Subhadip , Sekhar Mondal Niladri , Bandyopadhyay Arka , Mondal Rajkumar , Jana Debnarayan 
Published: May 2023

Abstract
The role of acetylenic linkage in determining the exotic band structures of 4, 12, 2- and 4, 12, 4- graphynes is reported. The Dirac bands, as confirmed by both density functional theory and tight-binding calculations, are robust and stable over a wide range of hopping parameters between

s
p

-

s
p

-hybridized carbon atoms. The shifting of the crossing points of the Dirac bands along the k-path of these two square graphynes is found to be in opposite direction with the hopping along with the acetylenic bond. A real space decimation scheme has also been adopted for understanding this interesting behavior of the band structure of these two graphynes. The condition for the appearance of a nodal ring in the band structure has been explored and critically tested by appropriate Boron-Nitrogen doping. Moreover, both the graphynes exhibit negative differential resistance in their current–voltage characteristics, with 4, 12, 2- graphynes showing superiority.
Optical properties of liquid pure copper by density functional theory
Authors: Kato Susumu , Ono Shota , Sunahara Atsushi , Sato Yuji , Tsukamoto Masahiro 
Published: May 2023

Abstract
The optical properties of pure liquid copper were investigated using density functional theory with the Quantum ESPRESSO package. The effects of structural changes were investigated by comparing the electron density of states and imaginary part of the dielectric function between the crystalline and liquid states with densities near the melting point. The results indicated that the effect of interband transitions remains in the structural changes near the melting point.
A highly sensitive sensor for carcinoembryonic antigen based on AlGaN/GaN high-electron-mobility transistors
Authors: Huang WeiSun , Hu Shengjie , Jiang Xuecheng , Weng Yuyan , Liu Yu , Tang Xue , Yang Guofeng , Wang Xun , Lu Naiyan 
Published: May 2023

Abstract
Carcinoembryonic antigen (CEA) is a well-known biomarker and validated serum biomarker for lung cancer. We introduce a simple label-free method for CEA detection. Specific recognition of CEA was made possible by immobilizing CEA antibodies in the sensing region of AlGaN/GaN high-electron-mobility transistors. The biosensors have a detection limit of 1 fg ml−1 in phosphate buffer solution. This approach has advantages of integration, miniaturization, low cost, and rapid detection compared to other testing methods for lung cancer and could be used in future medical diagnostics.
Visible light driven CZTS QDs/α-Fe2O3-graphene p–n heterojunction for photoelectrochemical water splitting
Authors: Ikram Ashi , Zulfequar Mohammad 
Published: May 2023

Abstract
This work investigates the implication of graphene and Cu2ZnSnS4 (CZTS) quantum dots (QDs) incorporation in the hematite thin film for its use in a photoelectrochemical cell. The thin film has been prepared by decorating the CZTS QDs over graphene-hematite composite by simple chemical approach. In Comparison to graphene modification and CZTS QDs modification separately over hematite thin film, the combination of both has produced more photocurrent. The photocurrent density obtained for CZTS QDs and graphene modified hematite thin film is 1.82 mA cm−2 at 1.23 V/RHE, which is 1.75 higher than pristine hematite. The presence of CZTS QDs over hematite-graphene composite enhances the absorption properties of composite along with creating the p–n junction heterostructure which aids the transportation of the charge carriers. The thin films have been characterized using x-ray diffractometer, Raman spectroscopy, field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy, and diffuse reflectance UV–vis spectroscopy for phase, morphology and optical properties analysis. The enhancement in photoresponse has been justified by Mott-Schottky and transient open circuit potential analysis.
GeAs as an emerging p-type van der Waals semiconductor and its application in p–n photodiodes
Authors: Kim Jung Ho , Han Gang Hee , Moon Byoung Hee 
Published: May 2023

Abstract
van der Waals (vdW) layered materials have shown great potential for future optoelectronic applications owing to their unique and variable properties. In particular, two-dimensional layered materials enable the creation of various circuital building blocks via vertical stacking, e.g. the vertical p–n junction as a key one. While numerous stable n-type layered materials have been discovered, p-type materials remain relatively scarce. Here, we report on the study of multilayer germanium arsenide (GeAs), another emerging p-type vdW layered material. We first verify the efficient hole transport in a multilayer GeAs field-effect transistor with Pt electrodes, which establish low contact potential barriers. Subsequently, we demonstrate a p–n photodiode featuring a vertical heterojunction of a multilayer GeAs and n-type MoS2 monolayer, exhibiting a photovoltaic response. This study promotes that 2D GeAs is a promising candidate for p-type material in vdW optoelectronic devices.
A modified CVD method for the synthesis of monolayer MoS2 and photoelectric improvement by HfO2 passivation
Authors: Ai Zikang , Bao Lingjie , Xiao Bohan , Yuan Jintao , Li Wenfeng , Lin Weiyi , Li Cheng , Cheng Qijin 
Published: May 2023

Abstract
Molybdenum disulfide (MoS2) is an emerging class of new materials with a wide range of potential practical applications. However, the uncontrollability of monolayer MoS2 synthesized by traditional chemical vapor deposition method and the low responsivity of MoS2 photodetectors limit its further development in the field of photoelectric detection. To achieve controlled growth of monolayer MoS2 and construct MoS2 photodetectors with a high responsivity, we propose a novel single crystal growth strategy of high-quality MoS2 by controlling the Mo to S vapor ratio near the substrate, and deposit a layer of hafnium oxide (HfO2) on the surface of MoS2 to enhance the performance of the pristine metal-semiconductor-metal structure photodetector. At a reverse bias of 8 V, the HfO2 passivated MoS2 photodetector features an extremely high responsivity of

1201

AW

−
1

,

a response time of around 0.5 s, and a detectivity of

7.7
×

10

11

Jones
.

Meanwhile, we deeply investigate the effect of the HfO2 layer on the performance of the fabricated MoS2 photodetector and propose a physical mechanism to interpret the obtained experiment results. These results might facilitate a better understanding on the performance modulation of the MoS2 photodetectors and accelerate the development of MoS2-based optoelectronic devices.