bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sequential Inkjet Printing of Lysozyme and Tyrosinase on Polyamide Fabric: Sustainable Enzyme Binding on Textile Surface
Authors: Biswas Tuser T. , Yu Junchun , Nierstrasz Vincent A. 
Published: July 2022

AbstractAn ink containing tyrosinase catalyzes the tyrosine residues on lysozyme protein to bind it on a plasma‐treated polyamide‐6,6 (PA) fabric. Inkjet printing enables controlled and sequential deposition of two enzymes on PA which is necessary for proper binding. The effect of different printing sequences on crosslinking stability and enzymatic activity is presented. The lysozyme bound on the fabric shows satisfactory antimicrobial activity. The printed fabric retains about 68% of the ink activity when tyrosinase is printed before lysozyme. Further, this fabric retains about 24% of the initial activity up to four reuses. The fabric shows acceptable inhibition of bacterial growth and retains almost half of its initial activity when cold stored for a month. This work shows the potential of protein binding on textile surface using various means of sustainable technologies, namely enzyme, inkjet, and plasma.
Pt Single Atoms on TiO2 Polymorphs—Minimum Loading with a Maximized Photocatalytic Efficiency
Authors: Qin Shanshan , Denisov Nikita , Sarma Bidyut Bikash , Hwang Imgon , Doronkin Dmitry E. , Tomanec Ondrej , Kment Stepan , Schmuki Patrik 
Published: July 2022

AbstractFor more than 20 years, Pt/TiO2 represents the benchmark photocatalyst/co‐catalyst platform for photocatalytic hydrogen (H2) generation. Here, single atom (SA) Pt is decorated on different polymorphs of TiO2 (anatase, rutile, and the mixed phase of P25) using a simple immersion anchoring approach. On P25 and anatase, Pt SAs act as highly effective co‐catalyst for pure water splitting with a photocatalytic H2 evolution activity (4600 µmol h−1 g−1)—on both polymorphs, SA deposition yields a significantly more active photocatalyst than those decorated with classic Pt nanoparticles or conventional SA deposition approaches. On rutile, Pt SAs provide hardly any co‐catalytic effect. Most remarkable, for P25, the loading of Pt SAs from precursor solution with a very low concentration (<1 ppm Pt) leads already to a maximized co‐catalytic effect. This optimized efficiency is obtained at 5.3 × 105 atoms µm−2 (at macroscopic loading of 0.06 at%)—for a higher concentration of Pt (a higher density of SAs), the co‐catalytic efficiency is significantly reduced due to H2/O2 recombination. The interactions of the SA Pt with the different polymorphs that lead to this high co‐catalytic activity of SA Pt at such low concentrations are further discussed.
High‐Performance MAPbI3/PM6:Y6 Perovskite/Organic Hybrid Photodetectors with a Broadband Response
Authors: Zhang Yu , Qin Zilun , Nie Weiqing , Li Yaqian , Huo Xiaomin , Song Dandan , Qiao Bo , Xu Zheng , Wageh Swelm , Al‐Ghamdi Ahmed , Zhao Suling 
Published: July 2022

AbstractBroadband photodetectors have a wide range of applications in the fields of biomedical sensing, environmental monitoring, optical communications, and space exploration. Since light absorbed by MAPbX3 perovskite materials is mainly located within the visible light region, the detection range of perovskite photodetectors is limited. To broaden the detection range for these types of photodetectors and, thus, enhance the number of possible application scenarios, a non‐fullerene acceptor Y6 is introduced that strongly absorbs light in the near‐infrared band and alongside PM6 forms an organic bulk heterojunction. This results in the expansion of the absorption range due to the formation of a supplementary absorption layer onto the perovskite layer. In this paper, the effects of the newly introduced organic layer on the device performance are studied. Through the synergistic effects of the perovskite and the organic layer, a high‐performance self‐powered perovskite/organic hybrid broadband photodetector can be realized, which contains a wide detection range from ultraviolet and visible light to near‐infrared (300–1000 nm). After its optimization, the device exhibits a high external quantum efficiency value that is as high as 80% in the visible–near‐infrared band, a short response time in the region of 803/698 ns, and a large linear dynamic range of 143 dB.
Flexible and Transferable Silver Nanowire Liquid Crystal Polymer Film Obtained via Photo‐Alignment Programming
Authors: Sang Jingxin , Zhang Juan , Feng Hange , Sun Jiatong , Shang Jianhua , Zhang Yihong , Zhao Shuguang , Neyts Kristiaan , Chigrinov Vladimir 
Published: July 2022

AbstractThe self‐assembly of silver nanowires (AgNWs) with a high aspect ratio is highly desirable for practical applications; however, several challenges still exist. Herein, a non‐contact, simple, large‐scale, micro‐domain photo‐alignment technology is proposed to align AgNWs in a liquid crystal polymer (LCP) film, resulting in a high order parameter (above 0.9). The AgNWs are precisely controlled to have planar alignment and twisted nematic structures in micro‐multi‐domains. The AgNW/LCP precursor is frozen to shape the film via ultraviolet crosslinking, allowing it to be easily peeled off and transferred to various flexible and other functional substrates. The aligned AgNWs can be used to improve the mechanical properties of LCP films, as they exhibit high elongation‐at‐break and high strength‐at‐break. The AgNW/LCP film can also be further programmed by micro‐multi‐domain photo‐alignment for use in flexible and wearable devices.
Copper‐Catalyzed Oxidative 1,2‐Alkylarylation of Styrenes with Unactivated C(sp3)‐H Alkanes and Electron‐Rich Aromatics via C(sp3)‐H/C(sp2)‐H Functionalization
Authors: Jiang Hui‐Min , Sun Qing , Jiang Jin‐Peng , Qin Jing‐Hao , Ouyang Xuan‐Hui , Song Ren‐Jie 
Published: July 2022

AbstractWe have disclosed an alkenes dicarbofunctionalization method to introduce alkyl and electron‐rich aryl across the C=C bond of styrenes under copper catalyst and oxidative conditions, leading to construct C(sp3)‐C(sp2)/C(sp3)‐C(sp3) bonds via dual C−H functionalization. This method realizes the synthesis of 1,1‐diarylalkanes, which are very important skeleton in natural products and drug molecules, through the grafting of electron‐rich aromatics, including indoles, pyrroles, trisubstituted aromatic.magnified image
One Pot Access to 2′‐Aryl‐2,3′‐Bithiophenes via Twofold Palladium‐Catalyzed C−X/C−H Coupling Associated to a Pd‐1,4‐Migration
Authors: Liu Linhao , Doucet Henri 
Published: July 2022

AbstractThe reactivity of 1,2‐dihalobenzenes in palladium catalyzed polyheteroarylation via C−H bond functionalization was investigated. The first catalytic cycle using thiophene as the heteroarene gives the expected 2‐(2‐bromophenyl)thiophenes. In the course of the second catalytic cycle, in the presence of heteroarenes having a free C3‐position, a partial Pd‐1,4‐migration occurred giving rise to aryl‐substituted biheteroarenes such as 2′‐aryl‐2,3′‐bithiophenes as well as the expected 1,2‐di(thiophen‐2‐yl)benzenes. The best selectivities in favor of the formation of 2′‐aryl‐2,3′‐bithiophenes were obtained with electron‐rich 1,2‐dihalobenzenes. A wide variety of thiophene derivatives bearing useful functions such as formyl, acetyl, cyclopropylmethanone, 2‐methyl‐1,3‐dioxolane, ester, nitrile or chloro was tolerated allowing to prepare poly‐functionalized 2′‐aryl‐2,3′‐bithiophenes. Moreover, this one pot preparation of 2′‐aryl‐2,3′‐bithiophenes employs a low loading of an air stable commercially available palladium source associated to an inexpensive base.magnified image
Mammary Leukocyte‐Assisted Nanoparticle Transport Enhances Targeted Milk Trace Mineral Delivery
Authors: Cai Jie , Peng Jie , Zang Xinwei , Feng Juan , Li Ruocheng , Ren Peng , Zheng Bingzhu , Wang Jiaying , Wang Juan , Yan Mi , Liu Jianxin , Deng Renren , Wang Diming 
Published: July 2022

AbstractNanoparticles are applied as versatile platforms for drug/gene delivery in many applications owing to their long‐retention and specific targeting properties in living bodies. However, the delivery mechanism and the beneficial effect of nanoparticle‐retention in many organisms remain largely uncertain. Here, the transport and metabolism of mineral nanoparticles in mammary gland during lactation are explored. It is shown that maternal intravenous administration of iron oxide nanoparticles (IONPs; diameter: ≈11.0 nm, surface charge: −29.1 mV, surface area: 1.05 m2 g−1) provides elevated iron delivery to mammary gland and increased iron secretion into breast milk, which is inaccessible by classical iron‐ion transport approaches such as the transferrin receptor‐mediated endocytic pathway. Mammary macrophages and neutrophils are found to play dominant roles in uptake and delivery of IONPs through an unconventional leukocyte‐assisted iron secretion pathway. This pathway bypasses the tight iron concentration regulation of liver hepcidin‐ferroportin axis and mammary epithelial cells to increase milk iron‐ion content derived from IONPs. This work provides keen insight into the metabolic pathway of nanoparticles in mammary gland while offering a new scheme of nutrient delivery for neonate metabolism regulation by using nanosized nutrients.
Topologically Protected All‐Optical Memory
Authors: Choi Seou , Kim Jungmin , Kwak Jeonghun , Park Namkyoo , Yu Sunkyu 
Published: July 2022

AbstractThe in‐memory processor has played an essential role in overcoming the von Neumann bottleneck, which arises from the partition of memory and a processing unit. Although photonic technologies have recently attracted attention for ultrafast and power‐efficient in‐memory computing, the realization of an all‐optical in‐memory processor remains a challenge. This difficulty originates from the contradiction between robustness and sensitivity in wave dynamics, requiring both noise‐immune memory states and modulation‐sensitive transitions between these states. Here, a building block that provides an all‐optical transition between topologically protected memory states is proposed. A nonlinear photonic molecule that satisfies parity‐time (PT) symmetry, revealing multiple oscillation quenching states with different degeneracies determined by PT‐symmetric phases is investigated. In terms of topology for dynamical systems, these quenching states support topologically protected dynamical trajectories suitable for stable memory states. An all‐optical bidirectional transition between these states, which allows incoherent memory switching is demonstrated. The result provides design criteria for all‐optical in‐memory processors with multilevel operations, enabling the classical‐wave counterpart of electronic memristors.
Frost risk in canola and carinata as a function of sowing date in the agricultural central region of South America
Authors: Verocai Maximiliano , Castro Marina , Manasliski Santiago , Mazzilli Sebastián R. 
Published: July 2022

AbstractCrop cycles in spring canola (Brassica napus L.) and carinata (Brassica carinata A. Braun) are controlled by temperature and photoperiod. In the central region of South America, which accounts for 90% of South American rapeseed crop production, farmers seek to sow as early as possible to maximize yield even though early sowing dates expose crops to a higher probability of frost occurrence that had not been quantified before. Our objective was to model phenology for one spring cultivar of canola (‘Rivette’) and one of carinata (‘Avanza 641’) and assess the probability of frost occurrence during flowering and grain filling in the central region of South America. For the estimation of frost risk, we modeled phenology resulting from 15 April to 15 August sowing dates at 12 locations (from 31.16° to 34.20° S latitude). We assumed that the critical period spans from 100 to 500 growing degree days (GDD) after flowering. Under early sowing dates, carinata tends to have a longer cycle (200 GDD more than canola) although both crops had a similar cycle length under a late sowing date. Predicted and observed flowering dates showed an average difference of 1.6 and 0.95 d for canola and carinata, respectively. Carinata has a lower probability of suffering frost events, and early sowing dates result in a greater exposure to frost damage. The results of this work will enable farmers and stakeholders to know the potential frost risk when defining a sowing date for canola and carinata.
Bisphenol A enhances apoptosis, fibrosis, and biochemical fluctuations in the liver of adult male rats with possible regression after recovery
Authors: Amin Mohammed Ahmed Shehata , Sonpol Hany M. A. , Gouda Rehab Hassan Elbanna , Aboregela Adel Mohamed 
Published: July 2022

AbstractBisphenol A (BPA) is an environmental contaminant that might be harmful. Human exposure to BPA can occur during the fetal and postnatal periods and extends throughout life. This study aimed to estimate the effects of oral administration of BPA on rat liver and assess the possibility of recovery after cessation. Adult male albino rats were orally administered with BPA (50 mg/kg body weight) for 8 weeks, and then one group was left to recover for 4 weeks. Histological, immunohistochemical, biochemical, and quantitative real‐time polymerase chain reaction assessments were performed. Loss of hepatic architecture, vascular dilatation congestion, and exudation, as well as cellular vacuolation, fat accumulation, and pyknotic nuclei were detected. Furthermore, inflammatory infiltration, localized metaplasia, and excessive collagen deposition in the portal triad were observed. Expression of Bcl‐2‐associated X protein and transforming growth factor beta 1 was prominent, denoting apoptosis and fibrosis. After the administration of BPA, serum levels of alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, total bilirubin, cholesterol, triglycerides, and low‐density lipoproteins were enhanced. Additionally, total protein, albumin, and high‐density lipoproteins decreased. After a recovery for 4 weeks, hepatic cellular and vascular pathologies returned to normal, except for some inflammatory infiltration. Regarding biochemical affection, most of the parameters were directed toward normal during recovery. However, most of them were still significantly different from controls. This explored BPA hepatotoxicity from structural and functional aspects, and the possible spontaneous reversibility was confirmed. However, the precise mechanisms underlying hepatotoxicity or recovery need more in‐depth investigations.
Current challenges of biomass refinery and prospects of emerging technologies for sustainable bioproducts and bioeconomy
Authors: Asghar Ayesha , Sairash Sairash , Hussain Nazim , Baqar Zulqarnain , Sumrin Aleena , Bilal Muhammad 
Published: July 2022

AbstractThe depletion of fossil resources and the resulting global warming are the primary motivators for moving from a fossil‐based to a biobased economy. Biorefineries, like petro‐based refineries, offer a green and sustainable option for producing marketable biobased goods through decarbonization pathways, hence upgrading the bioeconomy. In the context of the industrial revolution, economic and environmental sustainability are critical in adopting biorefinery systems. However, biorefineries still face numerous hurdles. There are numerous technological, economic, ecological, sociological and long‐term issues throughout the biorefinery production chain. The key difficulties facing biorefineries today are acceptance in the present market of the ‘fossil‐based economy’, the composition and availability of feedstock, the quantities needed to meet the market demand, the efficiency of the resource recovery, techno‐economic viability and sustainability. Life cycle assessment may provide a thorough input on the environmental setting during process optimization, minimizing the biorefinery project's environmental impact. In this review, we outline the bottlenecks and obstacles that biorefineries face while producing biofuels from biomass, as well as how biotechnology and modern technology might help researchers to overcome them. Biorefineries need to optimize their biomass usage to generate products that properly fit the market expectations. These items should be cost‐effective when compared with fossil fuels. Currently, 85–90% of petroleum refinery output is used to make fuels, with only 10–15% going to the petrochemical industry to make organic compounds. To precisely match market demands, the biorefinery should produce the same proportion of fuels and organic compounds. To overcome the challenges, biofermentation, membrane technologies and oxidation processes, among other developing technologies, are drawing interest in several areas of biorefinery. Biorefinery systems necessitate a systematic process for identifying impacts and assessing their long‐term viability. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.
Relationship between achieving Sustainable Development Goals and promoting optimal care and prevention of birth defects globally
Authors: Kancherla Vijaya , Roos Nathalie , Walani Salimah R. 
Published: July 2022

AbstractBirth defects affect eight million newborns annually worldwide. About 8% of global under‐5 mortality is attributable to birth defects. The United Nations (UN) Sustainable Development Goals (SDGs) have set 17 global goals for human growth and development to be achieved by 2030 using multi‐sectorial approaches. The third goal (SDG‐3) focuses on ensuring healthy lives and promoting well‐being; achieving SDG‐3 improves birth defects care and prevention. However, we aimed to show how achieving other SDGs also influence optimal care and prevention of birth defects. SDGs focused on poverty reduction, access to nutritious food, universal health coverage, equitable education, gender equality, environment, inclusivity through infrastructure innovation, and strengthening social justice is crucial to addressing social determinants of health for individuals and families affected by birth defects. Understanding birth defects in the context of several relevant SDGs will allow practitioners, researchers, and policymakers to leverage the momentum generated by SDGs and make a case for commitment and allocation of funding and resources for advancing birth defects surveillance, care, and prevention. SDGs are built on principles of equity and social justice and we urge policy‐makers to approach birth defects using various SDGs as a catalyst. The synergy between several SDGs helps to optimize birth defect outcomes and prevention. Our effort to present a more comprehensive look at various SDGs and their relationship with birth defects is parallel to several other health advocacy groups conducting a similar mapping exercise, thus bringing to the forefront millions of lives that are impacted by birth defects worldwide.
Black and minority ethnic student teachers' stories as empirical documents of hidden oppressions: Using the personal to turn towards the structural
Authors: Warner Diane 
Published: July 2022

AbstractRacism, as a covert but pervasive presence in teacher education in England, remains a major structural issue and its effects on student teachers who are Black and Asian are real and troubling. Their personal stories reveal multiple challenges and present empirical evidence that can usefully be analysed to examine their experience of daily micro‐aggressions and overt racisms in their teacher education and its effect on them. This paper focuses on the stories of three Black and Asian primary student teachers and argues that it is important to see these personal accounts as empirical documents of hidden oppressions because they are significant pointers towards larger, structural and unacknowledged fissures in initial teacher education (ITE). The critical race theory concept of ‘counter story’ is used to analyse the stories and make visible the way that hidden racisms within ITE can silence and disempower these student teachers. The three stories show that these Black and Asian student teachers portray nuance and confusion, wonder and loss of direction at times, alongside a portrayal that their identities are in flux due to the complex and contested discourses with which they are required to engage as minoritised ‘others’ in their teacher education. This study has important implications for teacher educators and senior managers in ITE and presents a challenge for active and sensitive anti‐racist cultures to develop.
Selective Demethoxylation of Guaiacols to Phenols using Supported MoO3 Catalysts
Authors: Yang Huaizhou , Yin Wang , Zhu Xiaotian , Deuss Peter J. , Heeres Hero J. 
Published: July 2022

AbstractLignin‐derived monomers with methoxy substituents are abundantly present in bioliquids derived from lignocellulosic biomass. Examples are the products obtained from the reductive catalytic fractionation of lignin (RCF) and pyrolysis of lignocellulosic biomass and hydrotreated products thereof. An attractive valorization step for these liquids involves demethoxylation to obtain alkylated phenols through selective catalytic hydrodeoxygenation (HDO). Within the context of sustainable chemistry, there is a strong drive to use cheap, non‐precious metal catalysts for this purpose. In this study, the HDO of guaiacol (5 wt% in toluene) was investigated in a continuous fixed‐bed reactor at 380 °C, 20 bar over supported MoO3 catalysts. MoO3 (5 %) supported on TiO2 (P25) was shown to give superior performance compared with MoO3 supported on anatase TiO2, Al2O3, SiO2, Nb2O5, CeO2, and ZrO2. Additional studies involving variation of the Mo loading and process conditions were performed, and the highest selectivity to demethoxylated phenolics like phenol and methylated phenols was 82 % at 97 % conversion of guaiacol. Both 4‐n‐propylguaiacol and a realistic guaiacols‐rich feed isolated from a representative pyrolysis oil were also successfully demethoxylated with the 5 % MoO3/TiO2 catalyst.
Asymmetric Core‐Expanded BOPYOs: Facile Synthesis and Optical Properties
Authors: Su Peng , Wen Liu , Zhou Yongzhu , Yan Jiaying , Yuan Xiaohui , Liu Debao , Zheng Kaibo , Zhang Nuonuo 
Published: July 2022

AbstractN,O‐bidentate BF2 complexes with five‐ and six‐membered core rings have been thoroughly investigated. However, the development of seven‐membered N,O‐boron complexes is still an area to be explored. We have developed BF3 ⋅ OEt2‐induced self‐condensation and coordination reactions based on a single starting material, which had been elucidated by experiment and calculation. This parent asymmetric core‐expanded borondifluoride‐(Z)‐1,3‐di(1H‐pyrrol‐2‐yl)but‐2‐en‐1‐one (BOPYO) showed reactivity with a wide range of aldehydes, thus providing a series of conjugation BOPYOs. Moreover, a BOPYO derivative with a dimethylamino group was developed as a new NIR dye that responds to acid with favorable photophysical properties based on intramolecular charge transfer effect.