bluuebunny/crossref_metadata_2025_split huggingface dataset:
Molecular Tuning of a Benzene‐1,3,5‐Tricarboxamide Supramolecular Fibrous Hydrogel Enables Control over Viscoelasticity and Creates Tunable ECM‐Mimetic Hydrogels and Bioinks
Authors: Hafeez Shahzad , Aldana Ana A. , Duimel Hans , Ruiter Floor A. A. , Decarli Monize Caiado , Lapointe Vanessa , van Blitterswijk Clemens , Moroni Lorenzo , Baker Matthew B. 
Published: March 2023

AbstractTraditional synthetic covalent hydrogels lack the native tissue dynamics and hierarchical fibrous structure found in the extracellular matrix (ECM). These dynamics and fibrous nanostructures are imperative in obtaining the correct cell/material interactions. Consequently, the challenge to engineer functional dynamics in a fibrous hydrogel and recapitulate native ECM properties remains a bottle‐neck to biomimetic hydrogel environments. Here, the molecular tuning of a supramolecular benzene‐1,3,5‐tricarboxamide (BTA) hydrogelator via simple modulation of hydrophobic substituents is reported. This tuning results in fibrous hydrogels with accessible viscoelasticity over 5 orders of magnitude, while maintaining a constant equilibrium storage modulus. BTA hydrogelators are created with systematic variations in the number of hydrophobic carbon atoms, and this is observed to control the viscoelasticity and stress‐relaxation timescales in a logarithmic fashion. Some of these BTA hydrogels are shear‐thinning, self‐healing, extrudable, and injectable, and can be 3D printed into multiple layers. These hydrogels show high cell viability for chondrocytes and human mesenchymal stem cells, establishing their use in tissue engineering applications. This simple molecular tuning by changing hydrophobicity (with just a few carbon atoms) provides precise control over the viscoelasticity and 3D printability in fibrillar hydrogels and can be ported onto other 1D self‐assembling structures. The molecular control and design of hydrogel network dynamics can push the field of supramolecular chemistry toward the design of new ECM‐mimicking hydrogelators for numerous cell‐culture and tissue‐engineering applications and give access toward highly biomimetic bioinks for bioprinting.
Dihydroxyterephthalate—A Trojan Horse PET Counit for Facile Chemical Recycling
Authors: Lee Ting‐Han , Forrester Michael , Wang Tung‐ping , Shen Liyang , Liu Hengzhou , Dileep Dhananjay , Kuehl Baker , Li Wenzhen , Kraus George , Cochran Eric 
Published: March 2023

AbstractHere, low‐energy poly(ethylene terephthalate) (PET) chemical recycling in water: PET copolymers with diethyl 2,5‐dihydroxyterephthalate (DHTE) undergo selective hydrolysis at DHTE sites, autocatalyzed by neighboring group participation, is demonstrated. Liberated oligomeric subchains further hydrolyze until only small molecules remain. Poly(ethylene terephthalate‐stat‐2,5‐dihydroxyterephthalate) copolymers were synthesized via melt polycondensation and then hydrolyzed in 150–200 °C water with 0–1 wt% ZnCl2, or alternatively in simulated sea water. Degradation progress follows pseudo‐first order kinetics. With increasing DHTE loading, the rate constant increases monotonically while the thermal activation barrier decreases. The depolymerization products are ethylene glycol, terephthalic acid, 2,5‐dihydroxyterephthalic acid, and bis(2‐hydroxyethyl) terephthalate dimer, which could be used to regenerate virgin polymer. Composition‐optimized copolymers show a decrease of nearly 50% in the Arrhenius activation energy, suggesting a 6‐order reduction in depolymerization time under ambient conditions compared to that of PET homopolymer. This study provides new insight to the design of polymers for end‐of‐life while maintaining key properties like service temperature and mechanical properties. Moreover, this chemical recycling procedure is more environmentally friendly compared to traditional approaches since water is the only needed material, which is green, sustainable, and cheap.
Electronic/Optoelectronic Memory Device Enabled by Tellurium‐based 2D van der Waals Heterostructure for in‐Sensor Reservoir Computing at the Optical Communication Band
Authors: Zha Jiajia , Shi Shuhui , Chaturvedi Apoorva , Huang Haoxin , Yang Peng , Yao Yao , Li Siyuan , Xia Yunpeng , Zhang Zhuomin , Wang Wei , Wang Huide , Wang Shaocong , Yuan Zhen , Yang Zhengbao , He Qiyuan , Tai Huiling , Teo Edwin Hang Tong , Yu Hongyu , Ho Johnny C. , Wang Zhongrui , Zhang Hua , Tan Chaoliang 
Published: March 2023

AbstractAlthough 2D materials are widely explored for data storage and neuromorphic computing, the construction of 2D material‐based memory devices with optoelectronic responsivity in the short‐wave infrared (SWIR) region for in‐sensor reservoir computing (RC) at the optical communication band still remains a big challenge. In this work, an electronic/optoelectronic memory device enabled by tellurium‐based 2D van der Waals (vdW) heterostructure is reported, where the ferroelectric CuInP2S6 and tellurium channel endow this device with both the long‐term potentiation/depression by voltage pulses and short‐term potentiation by 1550 nm laser pulses (a typical wavelength in the conventional fiber optical communication band). Leveraging the rich dynamics, a fully memristive in‐sensor RC system that can simultaneously sense, decode, and learn messages transmitted by optical fibers is demonstrated. The reported 2D vdW heterostructure‐based memory featuring both the long‐term and short‐term memory behaviors using electrical and optical pulses in SWIR region has not only complemented the wide spectrum of applications of 2D materials family in electronics/optoelectronics but also paves the way for future smart signal processing systems at the edge.
Rational Design of Layered MnO2@Graphene with Hierarchical Structure for Flexible Quasisolid‐State Aqueous Zinc‐Ion Battery via Laser Activation
Authors: Zhong Xiaoqiu , Yang Chao , Zhao Yongqing , Qiu Jianhui , Zang Limin 
Published: March 2023

AbstractAqueous zinc‐ion battery (AZIB) based on Zn//MnO2 is considered as one of the most promising energy storage devices. However, the poor Zn2+ storage kinetics and structural integrity of MnO2 affect its electrochemical performance. In this work, the vertically aligned multilayer graphene sheets (VGS) are in situ formed on the graphite paper via laser activation, and then MnO2 nanoflakes are coated on the VGS by electrochemical deposition, leading to the layered MnO2@graphene with hierarchical structure. The MnO2 nanoflakes coated on the VGS not only have improved charges transfer and structural integrity owing to the conductive skeleton, but also expose more accessible area to the electrolyte. In addition, the inner layer of graphite paper maintains its original structure, which can serve as current collector and endow the composite materials with good flexibility. In light of this rational design, the coin‐type AZIB assembled with layered MnO2@graphene as cathode shows a maximum capacity of 363.6 mAh g−1. Furthermore, a flexible quasisolid‐state AZIB is fabricated, which also exhibits superior electrochemical performance and flexibility (97.0% capacity retention after 1000 bending cycles). This work provides a feasible and effective strategy to develop flexible MnO2@graphene as cathode for high‐performance rechargeable Zn//MnO2 AZIB by rational design of the structure.
Comprehensive Evaluation of Industrial Potentials for Indoor Organic Photovoltaic Materials via a New Figure of Merit
Authors: Gao Yuan , Yu Yue , Guo Jing , Sun Rui , Wang Tao , Wang Wei , Min Jie 
Published: March 2023

AbstractAlthough the power conversion efficiencies (PCEs) of indoor organic photovoltaic (IOPV) continue increasing toward the 30% milestone, important factors (e.g., operation stability and cost potential) for industrial application are neglected, thus resulting in a lack of overall top‐down thinking to evaluate the commercialization potential of IOPVs. By introducing five active layer systems to analyze their efficiency–stability–cost gaps, a standardized indoor industrial figure of merit (i‐FOMindoor) concept is proposed as a reliable approach to evaluate their industrial viability. This i‐FOMindoor contains extracted energy density (including PCE, T80 lifetime, and input power density) and material cost (including synthesis complexity and material usage). To inspire a broader interest, the correlations between active layer thickness, efficiency–stability–cost gap, and i‐FOMindoor are also investigated. Impressively, the levelized cost of energy of IOPVs is less sensitive to the active layer thickness in comparison to the outdoor OPVs. Inspired by this i‐FOMindoor, an outdoor i‐FOM is also proposed for industrial potential evaluation of OPV materials in real external environments.
Disentangling Dual Emission Dynamics in Lead Bromide Perovskite
Authors: Fang Hong‐Hua , Duim Herman , Loi Maria Antonietta 
Published: March 2023

AbstractMetal halide perovskites exhibit intriguing properties for optoelectronic and electronic applications. Understanding their intrinsic photoexcitation and band‐tail dynamics is essential for exploring novel functionality and improving device performance. This report addresses the band‐tail luminescence of lead bromide perovskite (APbBr3) single crystals, where A is methylammonium, formamidinium, and cesium. Using time‐resolved photoluminescence (PL) spectroscopy, the dynamics of well‐defined dual emission peaks are unambiguously resolved from the picosecond to the microsecond scale. Whereas the long‐lived states exhibit similar recombination dynamics at high temperatures, a clear, fast transition occurs between the high and low energy states at low temperatures, indicating direct communication between these two states. These time‐resolved PL spectra shed light on the intrinsic optical properties of metal halide perovskites.
Highly‐Selective Harvesting of (6,4) SWCNTs Using the Aqueous Two‐Phase Extraction Method and Nonionic Surfactants
Authors: Podlesny Blazej , Hinkle Kevin R. , Hayashi Keita , Niidome Yoshiaki , Shiraki Tomohiro , Janas Dawid 
Published: March 2023

AbstractMonochiral single‐walled carbon nanotubes (SWCNTs) are indispensable for advancing the technology readiness level of nanocarbon‐based concepts. In recent times, many separation techniques have been developed to obtain specific SWCNTs from raw unsorted materials to catalyze the development in this area. This work presents how the aqueous two‐phase extraction (ATPE) method can be enhanced for the straightforward isolation of (6,4) SWCNTs in one step. Introducing nonionic surfactant into the typically employed mixture of anionic surfactants, which drive the partitioning, is essential to increasing the ATPE system's resolution. A thorough analysis of the parameter space by experiments and modeling reveals the underlying interactions between SWCNTs, surfactants, and phase‐forming agents, which drive the partitioning. Based on new insight gained on this front, a separation mechanism is proposed. Notably, the developed method is highly robust, which is proven by isolating (6,4) SWCNTs from several raw SWCNT materials, including SWCNT waste generated over the years in the laboratory.
Atomic Insights into Advances and Issues in Low‐Temperature Electrolytes
Authors: Hou Ruilin , Guo Shaohua , Zhou Haoshen 
Published: March 2023

AbstractThe design of low‐temperature electrolytes is a key technology to improve the low‐temperature performance of electrochemical energy storage devices and expand their application fields. However, the current design strategies for low‐temperature electrolytes remain in the optimization of formula, without systematic and in‐depth consideration of the internal relationship between the fundamental interactions and performances of electrolytes at low temperature. Here, starting from the four fundamental interactions among cations, anions, and solvents in the electrolyte, this review for the first time analyzes the temperature‐dependent mechanisms of their interactions and corresponding physicochemical properties of electrolytes from atomic insights. Then, the research progress in low‐temperature electrolytes is summarized according to the relationships of these interactions. The possible new development directions in the future are also pointed out. This review provides a theoretical reference for the design of low‐temperature electrolytes.
Genome‐scale transcriptomic insights into the mature growth dynamic of tobacco leaves
Authors: Yang Jinpeng , Wan Di , Qiao Baoming , Yu Jun , Li Zongping , Liu Daisong , Lv Peijun , Hu Jinwen , Rao Xiongfei , Xu Fangsen , Wang Sheliang , Yang Chunlei 
Published: March 2023

AbstractThe harvest time is a key factor for cigar leaves with high quality, which varies greatly depending on the environment. In this study, we performed a growth characterization of the cigar tobacco CX‐26 (Nicotiana tabacum L.) from the cluster stage to the vigorous stage and mature stage. Further, soil plant analysis development measurement of three middle leaves with 67 (T1), 71 (T2), and 75 days (T3) of growth after transplant indicates that the maturity might change from 71 to 75 days of growth. A genome‐scale transcriptome was conducted to explore the gene expression dynamics of this maturity change. A total of 80,502 genes were detected in the CX‐26 leaves, of which 64,611 genes were annotated on the reference genome. T1 and T2 leaves had fewer differential expressing genes (DEGs), while T3 leaves had 26,456 DEGs from T2 leaves, supporting the distinct growth of T3 leaves. Analyses of Gene ontology, Kyoto encyclopedia of genes and genomes identified that DEGs are involved inkey pathways including photosynthesis‐antenna proteins, plant hormone/mitogen‐activated protein kinase signaling pathway, and plant‐pathogen interaction. Abscisic acid and jasmonate acids positively regulate leaf senescence and chlorophyll degradation and were higher in the T3 leaves compared with T1 and T2 leaves. In contrast, the total sugar was reduced in T3 leaves compared with T1 and T2 leaves, indicating the overripe state of the T3 leaves. Furthermore, several photosynthesis‐related enzymes and a transcription factor were highlighted in the gene regulatory network, which might regulate the dynamics of carbohydrate metabolism, lipid metabolism, and energy metabolism. In summary, our study provides insight into the growth state of CX‐26 cigar leaves.
Mn(acac)3 as a Remarkably Efficient Oxidant: Mediation of the Radical Addition/Cyclization Cascade of Boronic Acids with Isocyanides
Authors: Wang Xiao‐Feng , Wu Yu‐Xiang , Xia Yi‐Ran , Yuan Yong‐Jun , Xu Xiao‐Ping , Ji Shun‐Jun 
Published: March 2023

AbstractA remarkably efficient protocol for the mediation of Mn(III) to the radical addition/cyclization cascade of boronic acids with isocyanides leading to 3‐aminoquinoline derivatives is established. A reasonable explanation to the high reactivity of the Mn(III) salt was suggested. Application of the synthetic method to the late‐stage modification of drug molecules was also presented.
Brief training in ultrasound equips novice clinicians to accurately and reliably measure jugular venous pressure in obese patients
Authors: Pettit Nicholas A. , Pedroja Benjamin S. , Li Hsin Fang , Sutcliffe Michael 
Published: March 2023

AbstractIntroduction/PurposeMeasurement of jugular venous pressure (JVP) by novice clinicians can be unreliable, particularly when evaluating obese patients. Measurement of JVP using ultrasound (uJVP) is simple to perform and provides accurate measurements. This study evaluated whether students and residents inexperienced with ultrasound could rapidly be taught to measure JVP using ultrasound in obese patients with the same accuracy as cardiologists measuring JVP via physical examination. Additionally, this study also evaluated the correlation between qualitative and quantitative JVP assessment.MethodsThis prospective, blinded study compared uJVP measurements performed by novice clinicians after brief training to JVP measurements performed by cardiologists (cJVP) on physical examination. Association between uJVP and cJVP was assessed using linear correlation, agreement and bias were assessed using the Bland–Altman analysis and inter‐rater reliability of uJVP was assessed using intraclass correlation coefficient (ICC). The association between qualitative and quantitative JVP assessment was assessed using linear correlation.ResultsNovice clinicians (n = 16) obtained 34 measurements from 26 patients (mean BMI 35.5) and reported moderate‐to‐high confidence in all measurements. uJVP correlated well with cJVP (r = 0.73) with an average error of 0.06 cm. The estimated uJVP ICC was 0.83 (95% CI = 0.44, 0.96). Qualitative uJVP had only a moderate correlation (r = 0.63) to quantitative uJVP.DiscussionNovice clinicians often have difficulty assessing JVP on physical examination, particularly in obese patients. Our findings show a high degree of correlation between JVP measurements performed by novice clinicians using ultrasound compared with JVP measurements made by experienced cardiologists on physical examination. Furthermore, novice clinicians were able to be trained quickly, their measurements were determined to be accurate and precise and they expressed moderate‐to‐high confidence in their results.ConclusionsAfter brief training, novice clinicians were able to accurately assess JVP in obese patients as compared to measurements made by experienced cardiologists on physical examination. Results suggest that ultrasound may greatly improve novice clinicians’ JVP assessment accuracy, particularly in obese patients.
On‐Surface Synthesis of Polyphenylene Wires Comprising Rigid Aliphatic Bicyclo[1.1.1]Pentane Isolator Units
Authors: Yang Biao , Niu Kaifeng , Cao Nan , Grover Nitika , Zhao Wenchao , Riss Alexander , Björk Jonas , Auwärter Willi , Barth Johannes V. , Senge Mathias O. 
Published: March 2023

AbstractBicyclo[1.1.1]pentane (BCP) motifs are of growing importance to the pharmaceutical industry as sp3‐rich bioisosteres of benzene rings and as molecular building blocks in materials science. Herein we explore the behavior of 1,3‐disubstituted BCP moieties on metal surfaces by combining low‐temperature scanning tunneling microscopy / non‐contact atomic force microscopy studies with density functional theory modeling. We examine the configuration of individual BCP‐containing precursors on Au(111), their supramolecular assembly and thermally activated dehalogenative coupling reactions, affording polymeric chains with incorporated electronically isolating units. Our studies not only provide the first sub‐molecular insights of the BCP scaffold behavior on surfaces, but also extend the potential application of BCP derivatives towards integration in custom‐designed surface architectures.
Preferential Pyrolysis Construction of Carbon Anodes with 8400 h Lifespan for High‐Energy‐Density K‐ion Batteries
Authors: Yin Jian , Jin Junjie , Chen Cailing , Lei Yongjiu , Tian Zhengnan , Wang Yizhou , Zhao Zhiming , Emwas Abdul‐Hamid , Zhu Yunpei , Han Yu , Schwingenschlögl Udo , Zhang Wenli , Alshareef Husam N. 
Published: March 2023

AbstractCarbonaceous materials are promising anodes for practical potassium‐ion batteries, but fail to meet the requirements for durability and high capacities at low potentials. Herein, we constructed a durable carbon anode for high‐energy‐density K‐ion full cells by a preferential pyrolysis strategy. Utilizing S and N volatilization from a π–π stacked supermolecule, the preferential pyrolysis process introduces low‐potential active sites of sp2 hybridized carbon and carbon vacancies, endowing a low‐potential “vacancy‐adsorption/intercalation” mechanism. The as‐prepared carbon anode exhibits a high capacity of 384.2 mAh g−1 (90 % capacity locates below 1 V vs. K/K+), which contributes to a high energy density of 163 Wh kg−1 of K‐ion full battery. Moreover, abundant vacancies of carbon alleviate volume variation, boosting the cycling stability over 14 000 cycles (8400 h). Our work provides a new synthesis approach for durable carbon anodes of K‐ion full cells with high energy densities.
Southerly winds: Family therapy and Latin America
Authors: Nichterlein Maria 
Published: March 2023

AbstractThis article serves as a conversational and conceptual introduction to this special issue. It is written not in Latin America – as the other articles are – but in Australia and it is written by a Chilean who left Chile due to the ravages that the 16 year long dictatorship had on those lands. Using reflections on my experience – as a citizen and later as a student in psychology and in family therapy – both in that country and since, I touch on post‐colonial issues and on epistemic violence to interrogate ‘invisibilities’ held in mainstream forms of knowledge in the field, invisibilities that come to us from the Western North. Using references to the work of Edward Said and Gabriel García Márquez, the article invites us to review core assumptions and postures in the conceptual frame of systemic work and proposes a methodology that supports alternative forms of knowledge – knowledges of the South – to forge a voice, a resistance to globalising tendencies that threaten to undermine the work we strive to do.
Tannin improves the processability and delays the biodegradability of poly (lactic acid)‐starch‐based thermoset materials produced by injection molding made with renewable compounds
Authors: Moreira Amanda Aleixo , de Carvalho Fabíola Azanha , Bilck Ana Paula , de Paula Maria Tereza , Mali Suzana , Yamashita Fabio , de Oliveira André Luiz Martinez 
Published: March 2023

AbstractThe incorporation of tannin in bio‐composite biodegradable thermoset materials (BTM) based on poly (lactic acid), starch, sugarcane fiber, and nutrient compounds, to achieve an alternative material for conventional plastics processed by injection molding aiming environmental applications was investigated. The biodegradation of injection molded BTM dog‐bone shape specimens prepared with and without incorporation of 1% tannin extract was evaluated up to 60 days with overall characterization by scanning electron microscopy, Fourier transform–infrared spectroscopy, thermogravimetric analyzer, and X‐ray diffraction. The BTM produced with 1% tannin showed reduced molding defects with an increased productivity of up to 82%, improved mechanical properties and reduced biodegradation of samples buried in an organic substrate. Based on physicochemical characterization, the observed delay in biodegradation of BTM induced by tannin is suggested to result from its tight interaction with the starch and lignocellulosic fibers, acting as antimicrobial agent and reducing the hydrophilicity of blends. Natural polyphenols such as tannins are suitable additives to improve the processability of injection molded bio‐composites and to extend the lifetime of biodegradable materials subjected to contact with high microbial load substrates, such as pots and buckets used to grow plants.