bluuebunny/crossref_metadata_2025_split huggingface dataset:
3D Printing of Mechanically Elastic, Self‐Adhesive, and Biocompatible Organohydrogels for Wearable and Breathable Strain Sensors
Authors: Guo Binbin , Zhong Yukun , Song Xiaoxia , Chen Xiaoteng , Zhou Peng , Zhao Fuxin , Bai Jiaming 
Published: December 2022

AbstractOrganohydrogel‐based strain sensors have gained increasing attention in the fields of real‐time healthcare and motion detection due to their excellent flexibility, stretchability, and skin‐like compliance. However, the fundamental attributes, such as mechanical elasticity, self‐adhesiveness, and biocompatibility, are challenging to be simultaneously obtained in organohydrogels, limiting their applications in wearable electronics. Additionally, traditional organohydrogels need to be fixed to the surface of the human skin and suffer from inferior breathability, resulting in complicated operations and severe uncomfortableness, respectively. Herein, a multifunctional organohydrogel is designed for wearable strain sensor by a facile digital light processing (DLP) 3D printing technology. By rationally tailoring the chemical (poly(N‐acryloylmorpholine)/poly(ethylene glycol) diacrylate) and physical (poly(N‐acryloylmorpholine)/poly(ethylene glycol) diacrylate and glycerin/water) cross‐linking networks, the organohydrogel exhibits promising water absorption/retention, high stretchability, impressive elasticity, and promising fatigue resistance. Additionally, good ionic conductivity, inherent self‐adhesiveness, and biocompatibility are simultaneously achieved. On the basis of the multifunctionalities, 3D multihole organohydrogels are designated as wearable and breathable strain sensors, facilitating the manipulation without any fixation and increasing the wear comfortableness. It is believed that 3D printed multihole organohydrogels show great potential in wearable flexible electronics.
Selective Release of Excitatory‐Inhibitory Neurotransmitters Emulated by Unipolar Synaptic Transistors via Gate Voltage Amplitude Modulation
Authors: Chen Ye , Hua Jing , Li Yueqing , Zhang Qi , Shao He , Li Wen , Ling Haifeng , Xu Xiangxing , Huang Wei , Yi Mingdong 
Published: December 2022

AbstractOrganic field‐effect transistor (OFET) memory devices are benefiting from their independent gate modulation advantages for hardware implementation of synaptic functionalities. However, the imitation of selective release of excitatory–inhibitory neurotransmitters in a unipolar synaptic OFET is challenging due to the unbalanced mobile carrier concentration. Here, a p‐type synaptic OFET memory with CsPbBr3 quantum dots (QDs) as nano‐floating gates (NFGs) is developed, which can emulate both the excitatory–inhibitory responses of the biological synapse and their reconfigurable nature. By controlling the offset difference between stimulus voltage and reading voltage, the concomitant and independently expressed excitatory and inhibitory responses are successfully implemented in a negative gate modulation manner, but without introducing an ambipolar semiconductor or additional optical terminal. This reconfigurable modulation is ascribed to the dynamic competition between external electric field and built‐in electric field assisted by charge trapping in shallow traps. The proposed gate voltage‐offset method can be generally adapted to other unipolar synaptic OFETs. These results provide insight into OFET memory devices for building neuromorphic hardware elements with tailorable synaptic plasticity.
Recent Progress and Challenges of Bismuth‐Based Halide Perovskites for Emerging Optoelectronic Applications
Authors: Chen Xu , Jia Mochen , Xu Wen , Pan Gencai , Zhu Jinyang , Tian Yongtao , Wu Di , Li Xinjian , Shi Zhifeng 
Published: December 2022

AbstractRecently, metal halide perovskites have attracted extensive attentions owing to their superior optoelectronic properties in various device applications, such as solar cells, photodetectors, light‐emitting diodes, lasing, photocatalysis, etc. Up to now, the state‐of‐the‐art developments of perovskite‐based devices are most using the lead‐halide perovskite system. However, the presence of lead (Pb) in these devices, which is insidious bioaccumulative hazard to human bodies, and a poor stability against light, heat, and humidity hamper their practical applications and future commercialization. Therefore, the scientific community is searching for low‐toxicity and environmental‐friendly lead‐free perovskite‐type materials as a back‐up strategy. Among the possible Pb‐substitution strategies, the trivalent bismuth cation (Bi3+) possesses the same electronic configuration as Pb2+, and some emerging Bi‐based perovskites and derivatives are experimentally characterized, which exhibit comparable optoelectronic properties to the Pb‐based perovskites. In this review, a comprehensive overview of currently explored Bi‐based halide perovskites is reported, with an emphasis on their synthesis methods, structural diversity, photophysical properties, and their current and potential applications in various optoelectronic categories. Finally, this review is finished with a critical outlook into the current challenges and development prospects of Bi‐based halide perovskites toward the versatile optoelectronic applications.
Efficient and Thermally Robust Broadband Near‐Infrared Emission in a Garnet Ca3MgHfGe3O12:Cr3+ Phosphor
Authors: Li Chaojie , Zhong Jiyou 
Published: December 2022

AbstractNear‐infrared (NIR) spectroscopy based on phosphor‐converted light‐emitting‐diode (pc‐LED) has promising applications in food quality analysis, security monitoring, medical diagnosis, and bioimaging fields, stimulating the demand of developing NIR phosphors with high‐performance. Herein, a highly efficient and thermally robust Ca3MgHfGe3O12:Cr3+ NIR phosphor is discovered, which exhibits a broadband NIR emission (λem = 800 nm) covering 700 to 1100 nm region with an internal quantum efficiency as high as 90.7% when excited by 460 nm blue light. Moreover, the emission intensity at 423 K retains 84.5% of that at room temperature. The highly efficient and thermally robust luminescence of this material is mainly ascribed to the ultrawide bandgap of host, extremely weak electron–photon coupling effect, defect‐free, and highly structural rigidity. The NIR pc‐LED device fabricated by using the optimized Ca3Mg0.97Hf0.97Ge3O12:0.06Cr3+ phosphor combined with blue (λem = 455 nm) LED chip produces an excellent NIR output power of 49.5 mW @ 11.5% under a driving current of 150 mA, which indicates a superiority to the device fabricated by using the well‐known efficient ScBO3:Cr3+ phosphor under the same condition. Therefore, this work not only provides a promising broadband NIR material, but also highlights the design rules for searching high‐performance NIR materials toward spectroscopy applications.
Light‐Triggered Nickel‐Catalyzed Azide−Alkyne Cycloaddition for the Preparation of 1,5‐Disubstituted 1,2,3‐Triazoles
Authors: Abadie Baptiste , Almansa Axel , He Ouchan , Massip Stéphane , Molton Florian , Duboc Carole , Vincent Jean‐Marc 
Published: December 2022

AbstractWhen irradiated by UVA, a Ni(II) precatalyst integrating a benzophenone chromophore in its structure catalyzes the regioselective cycloaddition of alkynes and azides to produce 1,5‐disubsituted 1,2,3‐triazoles with 1,5:1,4 regioisomer ratios ranging from 1.7:1 to >20:1. Speciation and reactivity studies revealed that the reaction most likely proceeds through a Ni(I)/Ni(III) catalytic cycle.magnified image
Enantioselective Synthesis of Benzothiazolines from Fluoroalkyl Ketones Using Chiral Imidazoline−Phosphoric Acid Catalysts
Authors: Iizuka Yuka , Wada Tatsumi , Ogura Kazuki , Takehara Tsunayoshi , Suzuki Takeyuki , Nakamura Shuichi 
Published: December 2022

AbstractThe first enantioselective synthesis of cyclic N,S‐ketals having tetrasubstituted chiral center through intramolecular cyclization between carbonyl compounds and aminothiols has been developed. The reaction of fluoroalkyl ketones with aminobenzenethiols using a chiral imidazoline−phosphoric acid catalyst afforded products in high yields with high enantioselectivity. The observed enantioselectivity is explained using preliminary mechanistic information.magnified image
Visible‐Light‐Driven Hydrophosphorylation of Azobenzenes Enabled by trans‐to‐cis Photoisomerization
Authors: Yang Jingya , Wang Cunhui , Zhou Hongyan , Kong Qianqian , Ma Wentong 
Published: December 2022

AbstractA visible‐light‐driven hydrophosphorylation of azobenzenes with diarylphosphine oxides was successfully developed. The reaction proceeded smoothly under blue light irradiation at room temperature without any photocatalyst required, providing a mild approach for this transformation with new strategy. Of important note is that the visible light‐driven trans‐to‐cis photoisomerization of azobenzenes was found to be the key for the process of the reaction, highlighting this underestimated reactivity of azobenzenes in visible‐light‐promoted mechanism.magnified image
Photoinduced Ligand‐to‐Metal Charge Transfer of Carboxylates: Decarboxylative Functionalizations, Lactonizations, and Rearrangements
Authors: Gavelle Sigrid , Innocent Milan , Aubineau Thomas , Guérinot Amandine 
Published: December 2022

AbstractIn the quest for sustainable processes, the selection of resources and catalysts is of central importance. Carboxylic acids, which are abundant, stable and ideally biobased feedstocks, can be considered as attractive platforms towards a range of functionalized molecules. A recent resurgence of photoinduced ligand‐to‐metal charge transfer (LMCT) of carboxylates led to tremendous developments in the field of earth‐abundant metal mediated, visible‐light induced (non)‐decarboxylative transformations of carboxylic acids. These reactions combine the use of available starting materials, low‐consuming energy source and abundant catalysts. Besides these undeniable advantages, they also provide mild, highly selective and innovative conditions towards complex molecule functionalization. The objective of this review is to give an overview of the recent advances in LMCT of carboxylates with a special focus on mechanistic aspects of these transformations.magnified image
Review of the Intelligent Sensor‐Memory‐Control Fusion Systems
Authors: Chen Yixuan , Wu Xinyue , Shen Junhao , Huang Zepeng , Wang Zhongrui , Lyu Liangjian , Bi Hengchang , Wu Xing , Shen Guozhen 
Published: December 2022

AbstractThe ability to sense light, heat, and touch is vital for human beings, underpinning the interaction between humans and the environment. To mimic the biological perception system, the sensory system converts external light, heat, and mechanical inputs into electrical signals, then processing and storing the data in digital hardware before providing feedback. However, modern digital sensing‐processing systems based on the von Neumann architecture are facing significant challenges in power consumption and latency due to the unprecedented increase in data size and algorithm complexity. A promising solution is to integrate sensors, memory, and control. Here the “state‐of‐the‐art” fusion systems involved in the sensing of visual, olfactory, tactile, visual signals, and control is reviewed. The challenges in high performance and reliability are also discussed.
Recent Advances in Nanodrug Delivery System for Tumor Combination Treatment Based on Photothermal Therapy
Authors: Qin Jiamin , Wang Xiaoxia , Fan Guojuan , Lv Yanna , Ma Jinlong 
Published: December 2022

AbstractAlthough photothermal therapy (PTT) can act on tumors alone, resulting in tumor shrinkage or even eradication, this effect is short‐lived, and the tumor may regrow. Thus, the most helpful contribution of PTT to cancer therapy is to employ it in conjunction with other tumor therapies, such as chemotherapy, immunotherapy, photodynamic therapy, gene therapy, radiotherapy therapy, and multiple combination therapy to boost treatment efficacy. This paper covers the benefits and drawbacks of combining photothermal therapy with various therapeutic approaches by the nanodrug delivery system and the possibilities and obstacles of clinical combination therapy.
Anisotropic Melting Path of Charge‐Ordering Insulator in LSMO/STO Superlattice
Authors: Zhang Bangmin , Yang Ping , Ding Jun , Chen Jingsheng , Chow Gan Moog 
Published: December 2022

AbstractMultiple phases coexist in manganite with simultaneously active couplings, and the transition among them depends on the relative intensities of different interactions. However, the melting path with variable intensities is unclear. The concentration and the ordering of oxygen vacancy in previous work are found to induce ferromagnetic charge‐ordering insulator phase in [(La0.7Sr0.3MnO3)10/(SrTiO3)5]n superlattice, which translates into metallic phase with magnetic field H and temperature T. In the current work, the H‐T phase diagram for current I//[100] and I//[110] shows a large difference with H normal to the film plane, which is ascribed to the response of a variable range of hopping process to H with the in‐plane anisotropic hopping probability of charge carrier. With H rotating from the out‐of‐plane to the in‐plane direction, the preferred occupancy of the orbital causes a decrease of spin‐orbital coupling and lowers the activation energy, inducing a gentler melting process of a charge‐ordering insulator. This work shows that the melting path of a charge‐ordering insulator phase can be largely modulated in manganite with anisotropy.
Lead‐Free Cesium Manganese Halide Nanocrystals Embedded Glasses for X‐Ray Imaging
Authors: Li Kai , Zhang Wenchao , Niu Luyue , Ye Ying , Ren Jing , Liu Chao 
Published: December 2022

AbstractThe toxicity of heavy‐metal Pb and instability of lead‐based halide perovskite nanomaterials are main factors to impede their practical applications in the fields of solar cells, LEDs and scintillators. In this paper, all inorganic lead‐free cesium manganese halide nanocrystals are synthesized in glass for the first time. Red photoluminescence with broad PL band, negligible self‐absorption and a high photoluminescence quantum yield of 41.8% is obtained. In addition, modulating halide component can change the Mn2+ ions coordination environment to obtain tunable photoluminescence from red to green. More importantly, cesium manganese halide nanocrystals embedded glasses exhibit outstanding long‐term stabilities. Theses cesium manganese halide nanocrystals embedded glasses are also highly stable against high energy irradiation and exhibit highly efficient radioluminescence, making them promising for high‐resolution X‐ray imaging. These results demonstrate that cesium manganese halide nanocrystals embedded glasses are promising eco‐friendly candidates for applications in light‐emitting diodes and scintillators.
A Thermal and Enzymatic Dual‐Stimuli Responsive DNA‐Based Nanomachine for Controlled mRNA Delivery
Authors: Li Feng , Sun Xiaolei , Yang Jing , Ren Jin , Huang Mengxue , Wang Shengqi , Yang Dayong 
Published: December 2022

AbstractThe extreme instability of mRNA makes the practical application of mRNA‐based vaccines heavily rely on efficient delivery system and cold chain transportation. Herein, a DNA‐based nanomachine, which achieves programmed capture, long‐term storage without cryopreservation, and efficient delivery of mRNA in cells, is developed. The polythymidine acid (Poly‐T) functionalized poly(N‐isopropylacrylamide) (DNA‐PNIPAM) is synthesized and assembled as the central compartment of the nanomachine. The DNA‐PNIPAM nano‐assembly exhibits reversible thermal‐responsive dynamic property: when lower than the low critical solution temperature (LCST, ≈32 °C) of PNIPAM, the DNA‐PNIPAM transforms into extension state to expose the poly‐T, facilitating the hybridization with polyadenylic acid (Poly‐A) tail of mRNA; when higher than LCST, DNA‐PNIPAM re‐assembles and achieves an efficient encapsulation of mRNA. It is remarkable that the DNA‐PNIPAM nano‐assembly realizes long‐term storage of mRNA (≈7 days) at 37 °C. Biodegradable 2‐hydroxypropyltrimethyl ammonium chloride chitosan is assembled on the outside of DNA‐PNIPAM to facilitate the endocytosis of mRNA, RNase‐H mediating mRNA release occurs in cytoplasm, and efficient mRNA translation is achieved. This work provides a new disign principle of nanosystem for mRNA delivery.
Dual‐Triggered Near‐Infrared Persistent Luminescence Nanoprobe for Autofluorescence‐Free Imaging‐Guided Precise Therapy of Rheumatoid Arthritis
Authors: Wang Ruoping , Shi Junpeng , Zhang Qian , Peng Qiang , Sun Xia , Song Liang , Zhang Yun 
Published: December 2022

AbstractRheumatoid arthritis (RA) is a common, chronic, and highly disabling autoimmune disease characterized by difficult treatment, long disease duration, and easy recurrence. The development and application of high‐sensitivity theranostic probes for RA that will facilitate precise monitoring of disease progression and enable effective treatment are currently hotspots in the field of RA theranostics. In this study, mZMI@HA, a dual‐triggered theranostics nanoprobe, is constructed based on near‐infrared persistent luminescence nanoparticles (NIR‐PLNPs) for precise RA treatment and therapeutic evaluation. This is the first reported use of high‐sensitivity autofluorescence‐free imaging based on NIR‐PLNPs for precise RA treatment and therapeutic evaluation. Compared with the NIR fluorescence imaging probe‐indocyanine green, the signal‐to‐background ratio of persistent luminescence (PersL) imaging is improved nearly 14‐fold. Using PersL imaging to guide photothermal therapy and controllable drug release through NIR/pH‐responsiveness, the progress of collagen‐induced RA is relieved. Additionally, the therapeutic evaluation of RA by PersL imaging is consistent with clinical micro‐computed tomography and histological analyses. This study demonstrates the potential of NIR‐PLNPs for high‐sensitivity imaging‐guided RA treatment, providing a new strategy for RA precise theranostics.
Color‐Tunable and Stable Copper Iodide Cluster Scintillators for Efficient X‐Ray Imaging
Authors: Zhao Wenjing , Wang Yanze , Guo Yuanyuan , Suh Yung Doug , Liu Xiaowang 
Published: December 2022

AbstractThe search for color‐tunable, efficient, and robust scintillators plays a vital role in the development of modern X‐ray radiography. The radioluminescence tuning of copper iodide cluster scintillators in the entire visible region by bandgap engineering is herein reported. The bandgap engineering benefits from the fact that the conduction band minimum and valence band maximum of copper iodide cluster crystals are contributed by atomic orbitals from the inorganic core and organic ligand components, respectively. In addition to high scintillation performance, the as‐prepared crystalline copper iodide cluster solids exhibit remarkable resistance toward both moisture and X‐ray irradiation. These features allow copper iodide cluster scintillators to show particular attractiveness for low‐dose X‐ray radiography with a detection limit of 55  nGy s−1, a value ≈100 times lower than a standard dosage for X‐ray examinations. The results suggest that optimizing both inorganic core and organic ligand for the building blocks of metal halide cluster crystals may provide new opportunities for a new generation of high‐performance scintillation materials.
Organic Phase‐Change Memory Transistor Based on an Organic Semiconductor with Reversible Molecular Conformation Transition
Authors: Hu Yongxu , Zheng Lei , Li Jie , Huang Yinan , Wang Zhongwu , Lu Xueying , Yu Li , Wang Shuguang , Sun Yajing , Ding Shuaishuai , Ji Deyang , Lei Yong , Chen Xiaosong , Li Liqiang , Hu Wenping 
Published: December 2022

AbstractPhase‐change semiconductor is one of the best candidates for designing nonvolatile memory, but it has never been realized in organic semiconductors until now. Here, a phase‐changeable and high‐mobility organic semiconductor (3,6‐DATT) is first synthesized. Benefiting from the introduction of electrostatic hydrogen bond (S···H), the molecular conformation of 3,6‐DATT crystals can be reversibly modulated by the electric field and ultraviolet irradiation. Through experimental and theoretical verification, the tiny difference in molecular conformation leads to crystalline polymorphisms and dramatically distinct charge transport properties, based on which a high‐performance organic phase‐change memory transistor (OPCMT) is constructed. The OPCMT exhibits a quick programming/erasing rate (about 3 s), long retention time (more than 2 h), and large memory window (i.e., large threshold voltage shift over 30 V). This work presents a new molecule design concept for organic semiconductors with reversible molecular conformation transition and opens a novel avenue for memory devices and other functional applications.
Solid‐State Fluorescent Carbon Dots with Unprecedented Efficiency from Visible to Near‐Infrared Region
Authors: Xu Bin , Li Jie , Zhang Jing , Ning Huiying , Fang Xiaoqi , Shen Jian , Zhou Heng , Jiang Tianlong , Gao Zhenhua , Meng Xiangeng , Wang Zifei 
Published: December 2022

AbstractDeveloping solid‐state luminescent materials with bright long‐wavelength emissions is of considerable practical importance in light‐emitting diodes (LEDs) but remains a formidable challenge. Here, a novel structure engineering strategy is reported to realize solid‐state fluorescence (FL)‐emitted carbon dots (CDs) from visible to near‐infrared region. This is the first report of such an extended wavelength emission of self‐quenching‐resistant solid‐state CDs. Notably, the quantum yields of these CDs are remarkably improved up to 67.7%, which is the highest value for solid‐state CDs. The surface polymer chains of CDs can efficiently suppress the conjugated sp2 carbon cores from π–π stacking inducing aggregation caused FL quenching, and the redshift of FL emissions is attributed to narrowing bandgap caused by an enlarged sp2 carbon core. Using these CDs as conversion phosphors, the fabrication of white LEDs with adjustable correlated color temperatures of 1882–5019 K is achieved. Moreover, a plant growth LED device is assembled with a blue‐LED chip and deep‐red/near‐infrared‐emitted CDs. Compared with sunlight and white LEDs, the peanuts irradiated by plant growth LED lamp show higher growth efficiency in terms of branches and leaves. This work provides high‐quality solid‐state CD‐based phosphors for LED lighting sources that are required for diverse optoelectronic applications.
MnAl Layered Double Hydroxides: A Robust Host for Aqueous Ammonium‐Ion Storage with Stable Plateau and High Capacity
Authors: Liu Qiang , Ye Fei , Guan Kailin , Yang Yunting , Dong Hongliang , Wu Yuping , Tang Zilong , Hu Linfeng 
Published: December 2022

AbstractRechargeable aqueous batteries based on ammonium‐ions shows great potential in low‐cost energy storage systems owing to their prominent superior characteristics, including ultrafast kinetics, long‐term lifespan, and environmental friendliness. Nevertheless, their development is severely challenged by the fact that the as‐reported cathode materials generally fail to satisfy the requirements on high capacity and stable working voltage simultaneously. Herein, the first NH4+ storage behavior in a MnAl layered double hydroxide (LDH) series is reported. Intriguingly, stable working voltage at 0.2 V is observed in the optimized Mn3Al1‐LDH sample with a high discharge capacity of 183.7 mAh g−1 at 0.1 A g−1. When assembling the rocking‐chair battery using a 3,4,9,10‐perylenetetracarboxylic diimide anode, the full battery delivers a high energy density of 45.8 Wh kg−1, surpassing most of its recently reported counterparts. A rapid amorphization conversion of the LDH cathode during the first charge process is revealed, which should be beneficial to NH4+ isotropic transport accompanied by a highly reversible building/breaking process of hydrogen bonds. The results realize a novel layered inorganic cathode material with superior performance for aqueous ammonium‐ion batteries, and the amorphization conversion to facilitate ion storage provides new insight into electrode design for aqueous batteries.