bluuebunny/crossref_metadata_2025_split huggingface dataset:
Metallic Interface Induced Ionic Redistribution within Amorphous MoO3 Films
Authors: Paparoni Francesco , Mijit Emin , Kazim Shafaq , Minicucci Marco , Pinto Nicola , D'Elia Alessandro , Macis Salvatore , Kim Changyoung , Huh Soonsang , Gunnella Roberto , Marcelli Augusto , DiCicco Andrea , Rezvani Seyed Javad 
Published: July 2022

AbstractThe phase evolution and ionic redistribution in amorphous MoO3 films, deposited on metallic aluminium (Al) and copper (Cu) substrates and subjected to distinct thermal treatments, are systematically investigated in this work. It is shown that the metallic interface significantly modifies the formation and dynamics of oxygen vacancies within the resulted structure, reducing the oxygen content of the MoO3 up to x < 2.94. The concentration of the oxygen vacancies can also be extended to the bulk via thermal treatment up to 400 °C. It is demonstrated that the MoO3 structure on metallic substrates is affected either by the diffusion of the metallic atoms inserted from the interface, which results in a formation of the meta‐stable alloy phases in case of Cu, or by the introduction of the oxygen vacancies into the crystalline matrix in case of Al. The oxygen vacancy density in the MoO3 films with a metallic interface can be tuned via optimal choice of the metal and treatment parameters such as temperature and oxygen partial pressure. Furthermore, the intrinsic defects present in the amorphous structure enhance the ionic mobility and diffusion of the metallic ions inside the crystalline structure.
Structural Oxygen Vacancies and Crystalline Defects in Iron Vanadate with Multiple Redox Centers Boosting Surface Migration for High‐Performance Zinc‐Ion Battery
Authors: Liu Yang , Liu Chang Lin , Gong Yun 
Published: July 2022

AbstractFe0.22V2O5(H2O)0.5 (FeVO) and Mn0.22V2O5(H2O)0.5 (MnVO) nanobelts with rich crystalline defects are synthesized by a facile one‐step hydrothermal approach. Their largest interlayer spacings are 10.6 Å and Rietveld refinement demonstrates the lamellar hydrated Fe3+ pillars in FeVO link different V–O–V layers via covalent bonds. Furthermore, all their V centers are five‐coordinated by O atoms, which is lower than the maximum coordination number of V (6), demonstrating that there are abundant oxygen vacancies (denoted as structural deficiency) in FeVO due to the lack of oxygen ligands, which can promote the migration of Zn2+ along the (001) surface of FeVO with a low energy barrier of 0.88 eV, as evidenced by density functional theory (DFT) simulations. FeVO exhibits an excellent capacity of 598 mAh g–1 at 0.1 A g–1 and long‐term cycling performance with a capacity retention of more than 80% over 1800 cycles at 5 A g–1, which is associated with the dual defects (structural oxygen vacancies and crystalline defects) and the extra capacity provided by the interconversion of Fe3+ ↔ Fe2+. Furthermore, a series of ex situ characterizations of the FeVO electrode reveal the co‐(de)intercalation of Zn2+/H+ and surface migration mechanism.
Double‐Layer Quantum Dots as Interfacial Layer to Enhance the Performance of CsPbI3 Solar Cells
Authors: Zhang Yi , Li Zhizai , Chen HuanYu , Xu Youkui , Lei Yutian , Peng Guoqiang , Zhou Xufeng , Wang Qian , Jin Zhiwen 
Published: July 2022

AbstractCsPbI3 has drawn constant interest in the field of perovskite solar cells (PSCs), due to its remarkable photovoltaic performance and thermal stability. Nonetheless, further development of CsPbI3 PSCs requires solving larger energy loss problem, which is primarily caused by charge recombination and energy band mismatch at the interface. Here, a double‐layer interface engineering concept is introduced that uses CsPbBr3 and CsPbCl3 colloidal quantum dots (QDs) to reduce energy loss. Characterization results suggest that the QDs interfacial layer not only improves the quality of CsPbI3 film through passivating the defects on the film surface and grain boundaries (GBs), but also optimizes energy level structure and establishes additional charge transport paths to facilitate hole transportation. As a result, the power conversion efficiency (PCE) of the device with double‐layer QDs covering is boosted to 18.89% from 17.26%. Its moisture stability is enhanced as well. This work of designing double‐layer QDs provides a new idea for interface engineering, and further manifests the great potential of QDs as interfacial layer.
Lithographic Patterning of Nanoscale Arrays of the Oxidase Enzyme CotA: Effects on Activity and Stability
Authors: Fruncillo Silvia , Toh Yeow Teck , Blanford Christopher F. , Su Xiaodi , Liu Hong , Wong Lu Shin 
Published: July 2022

AbstractThis study compares the enzymatic activity of nanoscale arrays bearing the oxidase CotA that are produced by two lithographic methods: polymer pen lithography (PPL), a scanning probe lithography for small‐area fabrication (≈1 cm2); and stepper photolithography, a large‐scale method (>300 cm2) used in the microelectronics sector. In both cases, arrays of 600 nm gold features are produced and functionalized with CotA through a bioconjugation method that gives uniform protein orientation. The enzyme activity of these arrays is then quantified over 100 days. The enzyme arrays produced by photolithography give higher oxidation activities immediately after fabrication but degrade more rapidly when compared to those produced by PPL. This result is due to the poorer passivation on the bulk surface of photolithographically produced arrays, resulting in a greater amount of non‐specifically adsorbed enzymes. However, once the results are adjusted to account for the differences in passivation and surface area, it is found that the enzymes immobilized on the gold features give essentially the same activity regardless of the lithographic method used. Thus, these results suggest PPL is a suitable method for prototyping biodevices prior to scale‐up, provided that due consideration is given to the design of the fabricated features.
A Comparative Study of Silver Microflakes in Digitally Printable Liquid Metal Embedded Elastomer Inks for Stretchable Electronics
Authors: Zu Wuzhou , Ohm Yunsik , Carneiro Manuel Reis , Vinciguerra Michael , Tavakoli Mahmoud , Majidi Carmel 
Published: July 2022

AbstractPrinted soft conductive materials for stretchable electronics should have low electrical resistivity, high strain limit, and stable electrical properties when stretched. Previously, it has been shown that a bi‐phasic ink composed of silver (Ag) microflakes, eutectic gallium−indium (EGaIn) alloy, and styrene isoprene (SIS) block copolymer is a promising formulation for printed soft electronics and has the potential to satisfy the necessary criteria. In this study, further improvements to the ink formulation are explored, with a focus on how the choice of Ag microflakes affects the electrical and electromechanical properties of the composite. By using specific Ag microflakes, AgInGa‐SIS inks that have conductivity as high as 6.38 × 105 S m−1 and a strain limit of over 1000%, with low electromechanical coupling can be synthesized. More broadly, when comparing the composite with different silver flakes, there is a 176% relative difference in conductivity, >600% difference in strain limit, and 277% relative difference in electromechanical coupling. To demonstrate the applicability of these inks for various use cases such as wearable bioelectronics, interconnects are printed for connecting electronic breakout boards with microcontrollers that provide a stable electrical connection when stretched, and the interconnects and electrodes of a wearable electrocardiography system that monitors the heart pulses in real‐time.
Chiral Perovskite Nanoplatelets Exhibiting Circularly Polarized Luminescence through Ligand Optimization
Authors: Hubley Austin , Bensalah‐Ledoux Amina , Baguenard Bruno , Guy Stephan , Abécassis Benjamin , Mahler Benoit 
Published: July 2022

AbstractChiral halide perovskite nanocrystals have many applications in next‐generation optoelectronic devices due to their interaction with polarized light. Through careful selection of chiral organic surface ligands, control over the circular dichroism (CD) and circularly polarized luminescence (CPL) of these materials can be achieved. However, while recent developments of CD‐active perovskites have seen significant advances, effective CPL remains a challenge. Here, colloidal perovskite nanoplatelets are synthesized exhibiting room temperature CPL with dissymmetry factors up to glum = 4.3 × 10−3 and gabs = 8.4 × 10−3. Methylammonium lead bromide nanoplatelets are synthesized with a mixture of chiral dimethylbenzylammonium ligands and achiral octylammonium ligands, the precise ratio of which is shown to be critical to achieving high g‐factors. The competitive binding of these surface ligands is investigated using 1H NMR, and an equilibrium model is used to demonstrate the ligand affinity. The magnitude of CPL and CD is quantitatively shown to exhibit a linear correlation, such that glum = 0.40 × gabs. Last, by screening several amines with close structures, it is shown that subtle differences in ligand structure have significant impact on the resulting nanoplatelets CD signal. These findings provide new insights for the effective design of perovskites exhibiting CPL and facilitate the development of high‐performance devices based on circularly polarized luminescence.
Supersensitive Ratiometric Thermometry and Manometry Based on Dual‐Emitting Centers in Eu2+/Sm2+‐Doped Strontium Tetraborate Phosphors
Authors: Zheng Teng , Sójka Małgorzata , Woźny Przemysław , Martín Inocencio R. , Lavín Víctor , Zych Eugeniusz , Lis Stefan , Du Peng , Luo Laihui , Runowski Marcin 
Published: July 2022

AbstractThe concept of optical temperature sensing using band intensity ratio is considered as one of the most effective, self‐reference, non‐invasive, and rapid detection techniques for the local temperature in natural or engineered systems. In this work, for the first time a divalent lanthanide‐co‐doped dual‐center system, i.e., SrB4O7:Eu2+/Sm2+ phosphors, working as a bifunctional ratiometric sensor of temperature and pressure is employed. With temperature alterations, the Eu2+/Sm2+ luminescence intensity ratio and the emission lifetime of Sm2+ are significantly changed, showing unprecedentedly high relative sensitivity of 45.6 and 3.17% K‐1, respectively. Moreover, in the pressure range from ≈10 to 40 GPa, the intensity ratio of the Eu2+/Sm2+ emissions shows strong pressure dependence and can be utilized for pressure monitoring, with high pressure relative sensitivity of ≈13.8% GPa‐1. The superior performance indicates that the developed dual‐center Eu2+/Sm2+‐co‐doped SrB4O7 phosphors are promising candidates for supersensitive optical sensing applications. The findings open a new approach of designing optical temperature and pressure sensors.
Room‐Temperature Phosphorescence Enhanced by Narrowing Down ΔEST through Tuning Excited States Energy Levels
Authors: Liang Dong , Jia Ji‐Hui , Yang Mingxue , Cai Xian‐Bao , Yu Rongmin , Lu Can‐Zhong 
Published: July 2022

AbstractIn this work, two spiro‐type compounds are investigated with similar molecular structure and stacking structure. By simply altering the acceptor's heteroatoms, a strategy to enhance room temperature phosphorescence (RTP) performance is presented. The intersystem crossing process can effectively be accelerated by reducing the energy gap between the singlet and triplet states (ΔEST) through adjusting the molecular energy level. Besides, thermally activated delayed fluorescence (TADF) is emerging in dilute solution due to such small ΔEST. This is helpful for deeply understanding the mechanism of competition in different radiative decay pathways (RTP and TADF).
An Induced Pluripotent Stem Cell‐Derived Neuromuscular Junction Platform for Study of the NGLY1‐Congenital Disorder of Deglycosylation
Authors: Sasserath Trevor , Robertson Ashley L. , Mendez Roxana , Hays Tristan T. , Smith Ethan , Cooper Helena , Akanda Nesar , Rumsey John W. , Guo Xiufang , Farkhondeh Atena , Pradhan Manisha , Baumgaertel Karsten , Might Matthew , Rodems Steven , Zheng Wei , Hickman James J. 
Published: July 2022

AbstractThere are many neurological rare diseases where animal models have proven inadequate or do not currently exist. NGLY1 deficiency, a congenital disorder of deglycosylation, is a rare disease that predominantly affects motor control, especially control of neuromuscular action. In this study, NGLY1‐deficient, patient‐derived induced pluripotent stem cells (iPSCs) are differentiated into motoneurons (MNs) to identify disease phenotypes analogous to clinical disease pathology with significant deficits apparent in the NGLY1‐deficient lines compared to the control. A neuromuscular junction (NMJ) model is developed using patient and wild type MNs to study functional differences between healthy and diseased NMJs. Reduced axon length, increased and shortened axon branches, MN action potential (AP) bursting, and decreased AP firing rate and amplitude are observed in the NGLY1‐deficient MNs in monoculture. When transitioned to the NMJ‐coculture system, deficits in NMJ number, stability, failure rate, and synchronicity with indirect skeletal muscle stimulation are observed. This project establishes a phenotypic NGLY1 model for investigation of possible therapeutics and investigations into mechanistic deficits in the system.
A Stable Three‐Dimensional Porous Carbon as a High‐Performance Anode Material for Lithium, Sodium, and Potassium Ion Batteries
Authors: Younis Umer , Qayyum Fizzah , Muhammad Imran , Yaseen Muhammad , Sun Qiang 
Published: July 2022

AbstractExtensive efforts are devoted to the design of new carbon materials with improved specific capacity for metal ion batteries (MIBs). One of the effective strategies for such material design is to change the structural unit. Recently, tetracene‐based nanoribbons have been synthesized (Chem. Eur. J. 2019, 25, 12074), which can be used as a basic building block to design a 3D porous TC60 as demonstrated in this work. Based on first‐principles calculations, it is found that the 3D‐TC60 shows high dynamical and thermal stability. Furthermore, the 3D‐TC60 with its unique porosity and various adsorption sites can work as a high‐performance anode material for Li, Na, and K‐ion batteries with high specific capacity of 706, 706, 466 mAhg−1; low diffusion barrier of 0.25, 0.11, 0.08 eV; small volume change of 0.88, 1.96, 2.94%; and average voltage of 0.19, 0.24, 0.50 V, respectively. These intriguing findings suggest the promising prospect of tetracene based materials for battery technology.
Highly Sensitive and Selective Gas Sensors Based on NiO/MnO2@NiO Nanosheets to Detect Allyl Mercaptan Gas Released by Humans under Psychological Stress
Authors: Li Chunyan , Choi Pil Gyu , Masuda Yoshitake 
Published: July 2022

AbstractNiO nanosheets are synthesized in situ on gas sensor chips using a facile solvothermal method. These NiO nanosheets are then used as gas sensors to analyze allyl mercaptan (AM) gas, an exhaled biomarker of psychological stress. Additionally, MnO2 nanosheets are synthesized onto the surfaces of the NiO nanosheets to enhance the gas‐sensing performance. The gas‐sensing response of the NiO nanosheet sensor is higher than that of the MnO2@NiO nanosheet sensor. The response value can reach 56.69, when the NiO nanosheet sensor detects 40 ppm AM gas. Interestingly, a faster response time (115 s) is obtained when the MnO2@NiO nanosheet sensor is exposed to 40 ppm of AM gas. Moreover, the selectivity toward AM gas is about 17–37 times greater than those toward confounders. The mechanism of gas sensing and the factors contributing to the enhance gas response of the NiO and MnO2@NiO nanosheets are discussed. The products of AM gas oxidized by the gas sensor are identified by gas chromatography‐mass spectrometry (GC/MS). AM gas detection is an unprecedented application for semiconductor metal oxides. From a broader perspective, the developed sensors represent a new platform for the identification and monitoring of gases released by humans under psychological stress, which is increasing in modern life.
Large Exchange Bias, High Dielectric Constant, and Outstanding Ionic Conductivity in a Single‐Phase Spin Glass
Authors: Ghazanfari Mohammad R. , Santhosh Archa , Siemensmeyer Konrad , Fuß Friederike , Staab Lennart , Vrijmoed Johannes C. , Peters Bertram , Liesegang Moritz , Dehnen Stefanie , Oeckler Oliver , Jerabek Paul , Thiele Günther 
Published: July 2022

AbstractThe multigram synthesis of K2[Fe3S4] starting from K2S and FeS is presented, and its electronic and magnetic properties are investigated. The title compound obtains a defect variant of the K[Fe2Se2] structure type. Dielectric and impedance measurements indicate a dielectric constant of 1120 at 1 kHz and an outstanding ionic conductivity of 24.37 mS cm–1 at 295 K, which is in the range of the highest reported value for potential solid‐state electrolytes for potassium‐ion batteries. The Seebeck coefficient of the n‐type conductor amounts to −60 µV K−1 at 973 K. The mismatch of the measured electrical resistivity and the predicted metal‐like band structure by periodic quantum chemical calculations indicates Mott insulating behavior. Magnetometry demonstrates temperature‐dependent, large exchange bias fields of 35 mT, as a consequence of the coexistence of spin glass and antiferromagnetic orderings due to the iron vacancies in the lattice. In addition, the decreasing training effects of 34% in the exchange bias are identified at temperatures lower than 20 K. These results demonstrate the critical role of iron vacancies in tuning the electronic and magnetic properties and a multifunctional material from abundant and accessible elements.
Are Polymer‐Based Electrolytes Ready for High‐Voltage Lithium Battery Applications? An Overview of Degradation Mechanisms and Battery Performance
Authors: Cabañero Martínez Maria Angeles , Boaretto Nicola , Naylor Andrew J. , Alcaide Francisco , Salian Girish D. , Palombarini Flavia , Ayerbe Elixabete , Borras Mateu , Casas‐Cabanas Montserrat 
Published: July 2022

AbstractHigh‐voltage lithium polymer cells are considered an attractive technology that could out‐perform commercial lithium‐ion batteries in terms of safety, processability, and energy density. Although significant progress has been achieved in the development of polymer electrolytes for high‐voltage applications (> 4 V), the cell performance containing these materials still encounters certain challenges. One of the major limitations is posed by poor cyclability, which is affected by the low oxidative stability of standard polyether‐based polymer electrolytes. In addition, the high reactivity and structural instability of certain common high‐voltage cathode chemistries further aggravate the challenges. In this review, the oxidative stability of polymer electrolytes is comprehensively discussed, along with the key sources of cell degradation, and provides an overview of the fundamental strategies adopted for enhancing their cyclability. In this regard, a statistical analysis of the cell performance is provided by analyzing 186 publications reported in the last 17 years, to demonstrate the gap between the state‐of‐the‐art and the requirements for high‐energy density cells. Furthermore, the essential characterization techniques employed in prior research investigating the degradation of these systems are discussed to highlight their prospects and limitations. Based on the derived conclusions, new targets and guidelines are proposed for further research.
A phase II study of neoadjuvant capecitabine, oxaliplatin, and irinotecan (XELOXIRI) in patients with locally advanced rectal cancer
Authors: Matsuda Chu , Kudo Toshihiro , Morimoto Yoshihiro , Kagawa Yoshinori , Tei Mitsuyoshi , Ide Yoshihito , Miyoshi Norikatsu , Takahashi Hidekazu , Uemura Mamoru , Takemasa Ichiro , Satoh Taroh , Mizushima Tsunekazu , Murata Kohei , Doki Yuichiro , Eguchi Hidetoshi ,   Multicenter Clinical Study Group of Osaka, Colorectal Cancer Treatment Group (MSCSGO)
Published: July 2022

AbstractPurposeAddition of perioperative multi‐agent chemotherapy to the treatment strategy for locally advanced rectal cancer (LARC) may be a promising option. We conducted a phase II study to evaluate the safety and efficacy of capecitabine combined with oxaliplatin and irinotecan (XELOXIRI) as triplet neoadjuvant chemotherapy in patients with LARC.MethodsPatients received neoadjuvant irinotecan and oxaliplatin and capecitabine and then underwent total mesorectal excision. The primary study endpoint was the pathological complete response (pCR) rate.ResultsBetween June 2013 and December 2016, 55 patients were enrolled in the study. Forty‐two (77.8%) of 54 completed the study protocol. The pCR rate was 7.7% (95% CI 3.0% to 18.2%). The 3‐year local recurrence rate was 3.9%, the 3‐year disease‐free survival (DFS) rate was 77.3, and the 3‐year overall survival rate was 96.0%.ConclusionXELOXIRI neoadjuvant chemotherapy appears to be feasible and efficacious for patients with LARC. Although neoadjuvant XELOXIRI alone did not yield our expected pCR rate, the local recurrence rate, 3‐year DFS, and measures of safety met current standards.
Congenital myopathy as a new phenotype caused by two undescribed variants in ASCC1 gene
Authors: Sharova Margarita , Guseva Darya , Kurenkov Alexey , Novoselova Olga , Murtazina Aysylu , Skoblov Mikhail 
Published: July 2022

AbstractWe present a patient with congenital myopathy and an inborn epiphysiolysis of the ulna. Whole‐exome sequencing analysis revealed two novel mutations in Activation Signal Cointegrator Complex 1 (ASCC1) gene in a compound heterozygous state—a splicing variant c.395‐2A>G and a deletion of the first two coding exons. Homozygous and compound heterozygous LoF variants in ASCC1 gene lead to a severe phenotype of spinal muscular atrophy with congenital bone fractures 2 (SMABF2). All patients described to date presented with a severe muscular hypotony, inborn fractures, and passed away shortly after birth while our proband had moderate hypotony, no fractures, but epiphysiolysis and he was 3.5 years old at the time of examination. To explain the phenotype of our patient, we performed an RNA analysis of all family members. We discovered that the c.395‐2A>G variant results in two aberrant mRNA isoforms. We also validated the deletion of two exons in ASCC1 gene that lead to the increased expression of this truncated transcript by 1.8 times. To investigate the possible impact of this deletion on the phenotype we predicted a new Kozak sequence in exon 4 that could lead to the formation of a truncated protein with shortened KH domain and a full RNA ligase‐like domain. We suggest that this unexpectedly different phenotype of the proband with ASCC1‐related disorder could be explained by the presence of the truncated protein with an increased expression.
Mechanistic Studies of Carbon Monoxide Release from Norborn‐2‐en‐7‐one CORMs
Authors: Bell Nathan T. , Payne China M. , Sammut Ivan A , Larsen David S. 
Published: July 2022

AbstractA study has been performed to determine the factors that control carbon monoxide (CO) release from 3a‐bromo‐norborn‐2‐en‐7‐one‐based organic CO‐releasing molecules (oCOms). Such molecules have recently become of interest for the therapeutic potential of targeted delivery of the gasotransmitter CO, however the mechanism controlling the release of CO has not been comprehensively studied. Elucidation of this mechanism would enable tuning of the rate of CO release to specific therapeutic needs, such as acute vs chronic administration. By the synthesis and evaluation of substituted oCOms, CO release has been shown to be controlled by a rate‐determining E1cB(irr)‐type elimination of HBr followed by rapid chelotropic decomposition to give CO and a substituted phthalimide byproduct. Based on this result we report the successful rational design and synthesis of water‐soluble oCOms with targeted half‐lives intermediate to those reported previously.