bluuebunny/crossref_metadata_2025_split huggingface dataset:
Colloidal Quantum Dot Solar Cells: Progressive Deposition Techniques and Future Prospects on Large‐Area Fabrication
Authors: Zhao Qian , Han Rui , Marshall Ashley R. , Wang Shuo , Wieliczka Brian M. , Ni Jian , Zhang Jianjun , Yuan Jianyu , Luther Joseph M. , Hazarika Abhijit , Li Guo‐Ran 
Published: January 2022

AbstractColloidally grown nanosized semiconductors yield extremely high‐quality optoelectronic materials. Many examples have pointed to near perfect photoluminescence quantum yields, allowing for technology‐leading materials such as high purity color centers in display technology. Furthermore, because of high chemical yield, and improved understanding of the surfaces, these materials, particularly colloidal quantum dots (QDs) can also be ideal candidates for other optoelectronic applications. Given the urgent necessity toward carbon neutrality, electricity from solar photovoltaics will play a large role in the power generation sector. QDs are developed and shown dramatic improvements over the past 15 years as photoactive materials in photovoltaics with various innovative deposition properties which can lead to exceptionally low‐cost and high‐performance devices. Once the key issues related to charge transport in optically thick arrays are addressed, QD‐based photovoltaic technology can become a better candidate for practical application. In this article, the authors show how the possibilities of different deposition techniques can bring QD‐based solar cells to the industrial level and discuss the challenges for perovskite QD solar cells in particular, to achieve large‐area fabrication for further advancing technology to solve pivotal energy and environmental issues.
Magnetic Domain Confined Printing of Programmable Organic Microcrystal Assemblies for Information Encryption
Authors: Yin Baipeng , Jia Hao , Chen Rui , Chang Qingda , Feng Jiangang , Gao Hanfei , Wu Yuchen , Jiang Lei , Zhang Chuang 
Published: January 2022

AbstractLarge‐scale assembly of organic micro/nanocrystals into well‐defined patterns with programmable structures is essential for applications such as information encryption at both high data density and high security level. Here, a magnetic‐field‐assisted approach that produces programmable assemblies of organic microcrystals with various shapes and orientations, using the magnetic domains of the underlying ferromagnetic metal microarrays as the printing templates, is developed. The diamagnetic microcrystals tend to aggregate in the regions of minimal field strength, and thus their assembly behavior is precisely controlled by the local field distribution on top of magnetic domains on substrate. The dynamic assembly process of microcrystal assemblies can be programmed upon the sequence of applied field, and their shape changes are ≈100% reproducible on a large scale (>20 000 sites over 1 cm2). These features of magnetically programmable assemblies are ideally suited for information encryption, for which the encryption–decryption–erasing of multilevel information from a QR‐code pattern based on the microcrystal assemblies under magnetic field is demonstrated.
Targeting the RT loop of Src SH3 in Platelets Prevents Thrombosis without Compromising Hemostasis
Authors: Mao Jianhua , Zhu Kongkai , Long Zhangbiao , Zhang Huimin , Xiao Bing , Xi Wenda , Wang Yun , Huang Jiansong , Liu Jingqiu , Shi Xiaofeng , Jiang Hao , Lu Tian , Wen Yi , Zhang Naixia , Meng Qian , Zhou Hu , Ruan Zheng , Wang Jin , Luo Cheng , Xi Xiaodong 
Published: January 2022

AbstractConventional antiplatelet agents indiscriminately inhibit both thrombosis and hemostasis, and the increased bleeding risk thus hampers their use at more aggressive dosages to achieve adequate effect. Blocking integrin αIIbβ3 outside‐in signaling by separating the β3/Src interaction, yet to be proven in vivo, may nonetheless resolve this dilemma. Identification of a specific druggable target for this strategy remains a fundamental challenge as Src SH3 is known to be responsible for binding to not only integrin β3 but also the proteins containing the PXXP motif. In vitro and in vivo mutational analyses show that the residues, especially E97, in the RT loop of Src SH3 are critical for interacting with β3. DCDBS84, a small molecule resulting from structure‐based virtual screening, is structurally validated to be directed toward the projected target. It specifically disrupts β3/Src interaction without affecting canonical PXXP binding and thus inhibits the outside‐in signaling‐regulated platelet functions. Treatment of mice with DCDBS84 causes a profound inhibition of thrombosis, equivalent to that induced by extremely high doses of αIIbβ3 antagonist, but does not compromise primary hemostasis. Specific targets are revealed for a preferential inhibition of thrombosis that may lead to new classes of potent antithrombotics without hemorrhagic side effects.
Dissipative Organization of DNA Oligomers for Transient Catalytic Function
Authors: Deng Jie , Liu Wei , Sun Mo , Walther Andreas 
Published: January 2022

AbstractThe development of synthetic non‐equilibrium systems opens doors for man‐made life‐like materials. Yet, creating distinct transient functions from artificial fuel‐driven structures remains a challenge. Building on our ATP‐driven dynamic covalent DNA assembly in an enzymatic reaction network of concurrent ATP‐powered ligation and restriction, we introduce ATP‐fueled transient organization of functional subunits for various functions. The programmability of the ligation/restriction site allows to precisely organize multiple sticky‐end‐encoded oligo segments into double‐stranded (ds) DNA complexes. We demonstrate principles of ATP‐driven organization into sequence‐defined oligomers by sensing barcode‐embedded targets with different defects. Furthermore, ATP‐fueled DNAzymes for substrate cleavage are achieved by transiently ligating two DNAzyme subunits into a dsDNA complex, rendering ATP‐fueled transient catalytic function.
Dissymmetric Chiral Poly(diphenylacetylene)s: Secondary Structure Elucidation and Dynamic Luminescence
Authors: Tarrío Juan José , Rodríguez Rafael , Fernández Berta , Quiñoá Emilio , Freire Félix 
Published: January 2022

AbstractThe secondary structure of a dissymmetric and chiral poly(diphenylacetylene) (PDPA) is elucidated by combining the data from NMR experiments (regioregular head to tail structure), Raman and IR studies (E configuration of the polyene double bonds), and high‐resolution AFM images (helical pitch, packing angle and orientation of the external helix). As a result, an E‐transoidal polyene backbone describing three coaxial helices is obtained. Theoretical electronic circular dichroism (ECD) studies of the structure show a good correspondence between experimental and theoretical data and allow one to decipher that the first Cotton band is generated by the poly(diphenylacetylene) core and not only by the polyene backbone. The dynamic behavior of poly‐(S)‐2 is also demonstrated by a helix inversion effect produced by conformational changes at the pendant groups when annealed in solvents with different donor abilities. This phenomenon is accompanied by an inversion of the circular polarized luminescence of the PDPA (CPL switch).
Binary Solvent Regulated Architecture of Ultra‐Microporous Hydrogen‐Bonded Organic Frameworks with Tunable Polarization for Highly‐Selective Gas Separation
Authors: Ding Xiaojun , Liu Zeyu , Zhang Yusheng , Ye Gang , Jia Jianfeng , Chen Jing 
Published: January 2022

AbstractA binary solvent synthetic strategy is proposed for the construction of C2‐symmetric molecule‐based hydrogen‐bonded organic frameworks (HOFs) with permanent ultra‐micropores and surface polarization derived from tunable coplanar open oxygen atoms. The activated HOFs BTBA‐1 a and PTBA‐1 a show highly selective separation of CO2/N2 with a record high ideal adsorbed solution theory (IAST) selectivity >2000 under ambient temperature and pressure.
Novel Quinolizine AIE System: Visualization of Molecular Motion and Elaborate Tailoring for Biological Application**
Authors: He Benzhao , Huang Jiachang , Zhang Jianyu , Sung Herman H. Y. , Lam Jacky W. Y. , Zhang Zhijun , Yan Saisai , Wang Dong , Zhang Jing , Tang Ben Zhong 
Published: January 2022

AbstractMolecular motions are ubiquitous in nature and they immutably play intrinsic roles in all actions. However, exploring appropriate models to decipher molecular motions is an extremely important but very challenging task for researchers. Considering aggregation‐induced emission (AIE) luminogens possess their unique merits to visualize molecular motions, it is particularly fascinating to construct new AIE systems as models to study molecular motion. Herein, a novel quinolizine (QLZ) AIE system was constructed based on the restriction intramolecular vibration (RIV) mechanism. It was demonstrated that QLZ could act as an ideal model to visualize single‐molecule motion and macroscopic molecular motion via fluorescence change. Additionally, further elaborate tailoring of this impressive core achieved highly efficient reactive oxygen species production and realized fluorescence imaging‐guided photodynamic therapy applications, which confirms the great application potential of this new AIE‐active QLZ core. Therefore, this work not only provides an ideal model to visualize molecular motion but also opens a new way for the application of AIEgens.
Synthesis and investigation of antioxidant and antimicrobial activity of new pyrazinopyrroloazepine derivatives using Fe3O4/CuO/ZnO@MWCNT MNCs as organometallic nanocatalyst by new MCRs
Authors: Soleimani Amiri Somayeh , Hossaini Zinatossadat , Azizi Zahra 
Published: January 2022

AbstractIn this study, we synthesized pyrazinopyrroloazepine derivatives in high yields using multicomponent reactions of isatoic anhydride, N‐methylimidazole, alkyl bromides, activated acetylenic compounds, ethyl glycinate and methyl aziridine in the presence of Fe3O4/CuO/ZnO@MWCNT as a high performance catalyst in water at room temperature. The Fe3O4/CuO/ZnO@MWCNT synthesizes using Petasites hybridus rhizome water extract as a green media and moderate base. As well Fe3O4/CuO/ZnO@MWCNT MNCs show a good improvement in the yield of the product and displayed significant reusable activity. Investigation of antioxidant ability of synthesized compounds using radical trapping of diphenyl‐picrylhydrazine (DPPH) and ferric reduction power experiment is another purpose in this research. Because of having two NH groups in the synthesized compounds, these compounds shown the good antioxidant activity relative two standards. Compound 7c was shown excellent antioxidant activity. Also, the antimicrobial activity of some synthesized compounds proved by employing the disk diffusion test on gram‐positive and gram‐negative bacteria. The pyrazinopyrroloazepines 7a, 7c, 7d and 7f have the maximum effect on Escherichia coli compared with gram‐positive and gram‐negative bacteria because of good inhibition zone diameter. This procedure has some benefits such as short reaction time, product with excellent yields, simple catalyst and products separation.
Synthesis and catalytic application of a curcumin‐based bio‐MOF in one‐pot preparation of tetrahydroquinazolinone derivatives via Biginelli reaction
Authors: Movaheditabar Parviz , Javaherian Mohammad , Nobakht Valiollah 
Published: January 2022

AbstractIn this work, a new curcumin‐based bidentate linker ligand, CurOAc, including two –COO−moieties at positions‐4 in phenyl rings, was designed, synthesized, and characterized. Accordingly, its corresponding zinc‐organic framework, Zn‐CurOAc, as a bio‐metal–organic framework (MOF) has been prepared and evaluated in the one‐pot three‐component Biginelli condensation reaction of substituted aromatic aldehydes, urea, and dimedone in ethanol. Zn‐CurOAc shows an excellent catalytic performance for the synthesis of tetrahydroquinazolinone derivatives at room temperature with high turnover frequency (TOF) values (5.43–10.86 h−1). The chemical structure of Zn‐CurOAc was characterized by fourier‐transform infrared spectroscopy (FT‐IR), X‐ray diffraction (XRD), inductively coupled plasma optical emission spectrometry (ICP‐OES), field emission‐scanning electron microscopy (FE‐SEM), transmission electron microscope (TEM), energy dispersive X‐ray (EDX), differential thermal analysis (DTA), and thermogravimetric analysis (TGA) techniques. This new catalytic approach was proceeded by the excellent isolated yields, short reaction times, and easy workup.
Performance evaluation on particle‐reinforced rigid/flexible composites via fused deposition modeling3Dprinting
Authors: Zhou Ning , Yang Shuochen , Liu Yanyue , Tuo Xiaohang , Gong Yumei , Guo Jing 
Published: January 2022

AbstractThe diversity of filament consumables is the basis for developing of fused deposition modeling (FDM) 3D printing industry. At the same time, the blending of matrix materials and the addition of reinforcing materials are the manufacturing difficulties of this composite 3D printing consumable. In this article, poly(lactic acid) (PLA)/thermoplastic polyurethane (TPU)/organic montmorillonite (OMMT) composites were manufactured to systematically study the characteristics and laws of these composites. Both the rigid matrix PLA and the flexible matrix TPU played advantages in multi‐component composites, while the blended matrix balanced their characteristics. OMMT added with 5% wt not only improved the mechanical and thermal properties of matrix materials but also affected the processability and practicability of composite consumables. The distribution of OMMT particles in the composites was quantitatively analyzed through image processing technology. PLA/TPU/OMMT FDM 3D printed samples as a representative composite system were selected to evaluate the general performance of particle‐reinforced 3D printed composites, and to provide reference for the research and development based on this type of 3D printed products.
Eomes and T‐bet, a dynamic duo regulating NK cell differentiation
Authors: Zhang Jiang , Rousseaux Noémi , Walzer Thierry 
Published: January 2022

AbstractT‐bet and Eomes are two related transcription factors (TFs) that regulate the differentiation of cytotoxic lymphocytes such as Natural Killer (NK) cells and CD8 T cells. Recent genome‐wide analyses suggest they have complementary roles in instructing the transcriptional program of NK cells, although their DNA binding sites appear to be very similar. In this essay, we discuss the mechanisms that could specify their action, addressing their expression profile, the cofactors they interact with, as well as their roles in the epigenetic regulation of chromatin accessibility. Based on the recent literature on these TFs, we propose different models to describe how they regulate gene expression in NK cells at steady state, or in the context of activation or exhaustion. We also discuss recent findings in the field of CD8 T cell differentiation and residency, where Eomes and T‐bet appear to be major regulators, and the parallels that can be drawn between mechanisms of NK and CD8 T cell differentiation and trafficking.
Strategies for Interference of Insulin Fibrillogenesis: Challenges and Advances
Authors: Sen Shantanu , Ali Rafat , Onkar Akanksha , Ganesh Subramaniam , Verma Sandeep 
Published: January 2022

AbstractThe discovery of insulin came with very high hopes for diabetic patients. In 2021, the world celebrated the 100th anniversary of the discovery of this vital hormone. However, external use of insulin is highly affected by its aggregating tendency that occurs during its manufacturing, transportation, and improper handling which ultimately leads to its pharmaceutically and biologically ineffective form. In this review, we aim to discuss the various approaches used for decelerating insulin aggregation which results in the enhancement of its overall structural stability and usage. The approaches that are discussed are broadly classified as either a measure through excipient additions or by intrinsic modifications in the insulin native structure.
Effect of Alkynyl Group on Reactivity in Photoaffinity Labeling with 2‐Thienyl‐Substituted α‐Ketoamide
Authors: Moriyama Takahiro , Mizukami Daiki , Yoritate Makoto , Usui Kazuteru , Takahashi Daisuke , Ota Eisuke , Sodeoka Mikiko , Ueda Tadashi , Karasawa Satoru , Hirai Go 
Published: January 2022

AbstractMinimalist photo‐reactive probes, which consist of a photo‐reactive group and a tag for detection of target proteins, are useful tools in chemical biology. Although several diazirine‐based and aryl azide‐based minimalist probes are available, no keto‐based minimalist probe has yet been reported. Here we describe minimalist probes based on a 2‐thienyl‐substituted α‐ketoamide bearing an alkyne group on the thiophene ring. The 3‐alkyne probe showed the highest photo‐affinity labeling efficiency.
An Incremental System To Predict the Effect of Different London Dispersion Donors in All‐meta‐Substituted Azobenzenes
Authors: Di Berardino Chiara , Strauss Marcel A. , Schatz Dominic , Wegner Hermann A. 
Published: January 2022

AbstractPredictive models based on incremental systems exist for many chemical phenomena, thus allowing easy estimates. Despite their low magnitude in isolated systems London dispersion interactions are ubiquitous in manifold situations ranging from solvation to catalysis or in biological systems. Based on our azobenzene system, we systematically determined the London dispersion donor strength of the alkyl substituents Me, Et, iPr up to tBu. Based on this data, we were able to implement an incremental system for London dispersion for the azobenzene scheme. We propose an equation that allows the prediction of the effect of change of substituents on London dispersion interactions in azobenzenes, which has to be validated in similar molecular arrangements in the future.
Influence of the droplet trajectory on the resulting droplet deformation and droplet size distribution in high‐pressure homogenizer orifices
Authors: Preiss Felix Johannes , Rütten Eva , Tröster Alexander , Gräf Volker , Karbstein Heike Petra 
Published: January 2022

AbstractHigh‐pressure homogenization is a commonly used process to produce emulsions with a droplet size of less than 1 μm. During the process, a pre‐emulsion is pumped with a pressure of several mega Pascal through a disruption unit, where the droplets are deformed and subsequently broken up in the turbulent area of the disruption unit. The scope of this investigation is to determine the influence of the droplet trajectory on the droplet size distribution of emulsions of different viscosity ratios or interfacial tension. Measurements of the droplet deformation prior to the droplet breakup using image‐processing tools complemented the observations. In addition, computational fluid dynamics simulations were performed to determine the stress history on the droplet trajectories. It was found that droplets on a trajectory close to the wall are more deformed when leaving the disruption unit compared to droplets on the centreline. The deformation of droplets at the edge of the jet increases downstream the disruption unit until it is finally disrupted. The simulation results support the experimental data, as it can be shown that shear and strain stresses on the trajectories close to the wall significantly exceed the stresses on the trajectories on the centreline. For an emulsion with a viscosity ratio greater than 3, droplets on a trajectory close to the wall resulted in smaller droplets and narrower droplet size distribution, while no significant influence was found for smaller viscosity ratios. Lowering the interfacial tension results in a stronger deformation, which was more pronounced for lower viscosity ratios (λ ≈ 3).
Valorization of soybean oil residue through advanced technology of graphene oxide modified membranes for tocopherol recovery
Authors: do Nascimento Nicole Novelli , Vieira Ana Carolina , Tardioli Paulo Waldir , Bergamasco Rosângela , Vieira Angélica Marquetotti Salcedo 
Published: January 2022

AbstractSoybean oil deodourization distillate (SODD) is a source of tocopherols used to produce vitamin E, in which α‐tocopherol is the isomer with higher biological activity and value‐added for the food industry. Hence, the aim of the present study was to modify the membrane surface with sulphonic groups, polyethyleneimine, and graphene oxide nanoparticles functionalized with tannic acid to recover SODD α‐tocopherol. First, the SODD saponification step was conducted followed by a liquid–liquid separation, which performed a pre‐concentration of α‐tocopherol approximately 28 times. The unsaponifiable material was dried and diluted in hexane, obtaining the feed solution for the membrane filtration processes. HPLC‐UV/DAD analysis showed that the modified membrane containing 1.12 mg of graphene oxide and 4.50 mg of tannic acid (M3) allowed to recover 82.00% of α‐tocopherol in the concentrate (14.16 wt.% of α‐tocopherol). From the characterizations of the modified membrane, it was observed that M3 presented hydrophobic properties and was able to be reused in two filtration cycles with a 64.39% flow recovery rate and a 71.96% recovery of α‐tocopherol. The results showed that the membrane modification with graphene oxide is a compelling methodology with low energy consumption and is eco‐friendly for the recovery and purification of α‐tocopherol from SODD.
Weekly cisplatin with or without imatinib in advanced chordoma: A retrospective case‐series analysis from the Italian Rare Cancers Network
Authors: Baldi Giacomo G. , Lo Vullo Salvatore , Grignani Giovanni , Vincenzi Bruno , Badalamenti Giuseppe , Mastore Marinella , Buonomenna Ciriaco , Morosi Carlo , Barisella Marta , Frezza Anna Maria , Provenzano Salvatore , Simeone Noemi , Picozzi Fernanda , Mariani Luigi , Casali Paolo G. , Stacchiotti Silvia 
Published: January 2022

BackgroundTo report on a retrospective case‐series analysis of weekly cisplatin (wCDDP) as a single agent or combined with imatinib (wCDDP/I) in patients with advanced chordoma treated within the Italian Rare Cancer Network.MethodsAdult patients with a diagnosis of advanced, brachyury‐positive chordoma, treated from April 2007 to October 2020 with wCDDP or wCDDP/I were retrospectively identified. Imatinib was withheld at the same time as wCDDP. Response according to Response Evaluation Criteria in Solid Tumors, overall survival (OS), and progression‐free survival (PFS) were analyzed.ResultsThirty‐three consecutive patients were identified (wCDDP as front‐line n = 8 [24.2%]; wCDDP as a further line n = 25 [75.8%]; prior imatinib n = 25 [75.8%]; evidence of progression before starting wCDDP n = 33). Of 32 patients evaluable for response (wCDDP, n = 22 [68.8%]; wCDDP/I, n = 10 [31.3%]), best response was stable disease (SD) in 27 patients (84.3%) and progression in 5 patients (15.6%). At a median follow‐up of 54 months, the median OS (m‐OS) was 30.3 months (interquartile range [IQR], 18.1‐56.6), the m‐PFS was 8.0 months (IQR, 5.1‐17.0), the 6‐month PFS rate was 65.2%, and the 12‐month PFS rate was 30.3%. Of 22 patients who received wCDDP, the best response was SD in 18 patients (81.8%) and progression in 4 patients (18.2%), and the m‐PFS was 8.0 months (IQR, 5.1‐17.0 months). Of 10 patients who received treatment with wCDDP/I, the best response was SD in 9 patients (90%) and progression in 1 patient (10%), and the m‐PFS was 9.3 months (IQR, 4.9‐26.5 months).ConclusionsThis series suggests that wCDDP, both as a single agent and combined with imatinib, has antitumor activity in chordoma. Although no dimensional responses were observed, 65% and 30% of previously progressive patients were progression‐free at 6 and 12 months, respectively. A prospective study is warranted.