Search results for: Na Yu

Items from 1 to 20 out of 282 results

article

Catalytic Enantioselective Synthesis of Inherently Chiral Calix[4]arenes via Sequential Povarov Reaction and Aromatizations

Shaoze Yu, Mengyao Yuan, Wansen Xie, Zidan Ye, more

Angewandte Chemie International Edition > 63 > 45 > n/a - n/a

Inherently chiral calix[4]arenes represent a unique type of chiral molecules with significant applications, yet their catalytic enantioselective synthesis remains largely underexplored. We report herein the catalytic enantioselective synthesis of inherently chiral calix[4]arenes through the sequential organocatalyzed enantioselective Povarov reaction and aromatizations. The chiral phosphoric acid...

article

Catalytic Enantioselective Synthesis of Inherently Chiral Calix[4]arenes via Sequential Povarov Reaction and Aromatizations

Shaoze Yu, Mengyao Yuan, Wansen Xie, Zidan Ye, more

Angewandte Chemie > 136 > 45 > n/a - n/a

article

m‐Aminophenylacetylene induces maternal care in a predatory spider

Yunru Chen, Na Yu, Shuchen Dong, Guanqun Li, more

Insect Science > 31 > 5 > 1569 - 1578

Maternal care is critically important for the survival of offspring in various animals. Spiders in the family Lycosidae are known for their hunting ability and maternal care behaviors. Predation on newly hatched spiderlings (pulli) by mother spiders decreases when they come into contact, and they carry the pulli on their dorsal surface. However, the factors inducing maternal care in lycosid spiders...

article

Prediction of total volatile basic nitrogen (TVB‐N) in fish meal using a metal‐oxide semiconductor electronic nose based on the VMD‐SSA‐LSTM algorithm

Pei Li, Zhaopeng Li, Yangting Hu, Shiya Huang, more

Journal of the Science of Food and Agriculture > 104 > 13 > 7873 - 7884

BACKGROUND The total volatile basic nitrogen (TVB‐N) is the main indicator for evaluating the freshness of fish meal, and accurate detection and monitoring of TVB‐N is of great significance for the health of animals and humans. Here, to realize fast and accurate identification of TVB‐N, in this article, a self‐developed electronic nose (e‐nose) was used, and the mapping relationship between the gas...

article

Suppression of Thermally Induced Surface Traps in Colloidal Quantum Dot Solids via Ultrafast Pulsed Light (Small 36/2024)

Eon Ji Lee, Wonjong Lee, Tae Ho Yun, Hyung Ryul You, more

Small > 20 > 36 > n/a - n/a

Colloidal Quantum Dot Solids In article number 2400380, Jongchul Lim, Changyong Yim, Jongmin Choi, and co‐workers present a novel approach for annealing thin films composed of PbS quantum dots using an ultrafast pulsed light in solar cells. This method operates on a millisecond timescale and effectively suppresses hydroxylation and oxidation on the quantum dot surface, which are typically induced...

article

Suppression of Thermally Induced Surface Traps in Colloidal Quantum Dot Solids via Ultrafast Pulsed Light

Eon Ji Lee, Wonjong Lee, Tae Ho Yun, Hyung Ryul You, more

Small > 20 > 36 > n/a - n/a

Thermal annealing (TA) of colloidal quantum dot (CQD) films is considered an important process for recent high‐performing CQD solar cells (SCs) due to its beneficial effects on CQD solids, including enhanced electrical conductivity, denser packing of CQD films, and the removal of organic residues and solvents. However, the conventional TA for CQDs, which requires several minutes, leads to hydroxylation...

article

Precisely Regulating Intermolecular Interactions and Molecular Packing of Nonfused‐Ring Electron Acceptors via Halogen Transposition for High‐Performance Organic Solar Cells

Xiaobin Gu, Rui Zeng, Yuqi Hou, Na Yu, more

Angewandte Chemie International Edition > 63 > 34 > n/a - n/a

The structure of molecular aggregates is crucial for charge transport and photovoltaic performance in organic solar cells (OSCs). Herein, the intermolecular interactions and aggregated structures of nonfused‐ring electron acceptors (NFREAs) are precisely regulated through a halogen transposition strategy, resulting in a noteworthy transformation from a 2D‐layered structure to a 3D‐interconnected packing...

article

Precisely Regulating Intermolecular Interactions and Molecular Packing of Nonfused‐Ring Electron Acceptors via Halogen Transposition for High‐Performance Organic Solar Cells

Xiaobin Gu, Rui Zeng, Yuqi Hou, Na Yu, more

Angewandte Chemie > 136 > 34 > n/a - n/a

article

Synergistic Bulk and Surface Engineering for Expeditious and Durable Reversible Protonic Ceramic Electrochemical Cells Air Electrode

Xi Chen, Na Yu, Yufei Song, Tong Liu, more

Advanced Materials > 36 > 32 > n/a - n/a

Reversible protonic ceramic electrochemical cells (R‐PCECs) offer the potential for high‐efficiency power generation and green hydrogen production at intermediate temperatures. However, the commercial viability of R‐PCECs is hampered by the sluggish kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) within conventional air electrodes operating at reduced temperatures...

article

Disorder‐Broadened Phase Boundary with Enhanced Amorphous Superconductivity in Pressurized In₂Te₅

Yi Zhao, Tianping Ying, Lingxiao Zhao, Juefei Wu, more

Advanced Materials > 36 > 27 > n/a - n/a

As an empirical tool in materials science and engineering, the iconic phase diagram owes its robustness and practicality to the topological characteristics rooted in the celebrated Gibbs phase law free variables (F) = components (C) – phases (P) + 2. When crossing the phase diagram boundary, the structure transition occurs abruptly, bringing about an instantaneous change in physical properties and...

article

Simple‐Structured Acceptor with Highly Interconnected Electron‐Transport Pathway Enables High‐Efficiency Organic Solar Cells

Xiaobin Gu, Rui Zeng, Tengfei He, Guanqing Zhou, more

Advanced Materials > 36 > 23 > n/a - n/a

Achieving desirable charge‐transport highway is of vital importance for high‐performance organic solar cells (OSCs). Here, it is shown how molecular packing arrangements can be regulated via tuning the alkyl‐chain topology, thus resulting in a 3D network stacking and highly interconnected pathway for electron transport in a simple‐structured nonfused‐ring electron acceptor (NFREA) with branched alkyl...

article

Soil condition determines how crop residues affect soil compressive characteristics

Jing An, Shuai Shao, Na Yu, Qingfeng Fan, more

European Journal of Soil Science > 75 > 3 > n/a - n/a

Excessive soil compaction is a major cause of environmental problems and reduced agricultural soil productivity. Soil conditions can affect soil compressive characteristics. The application of organic materials reduces soil susceptibility to compaction. However, the direct effect of incorporated organic matter and interactions among soil conditions and incorporated organic materials on soil compressive...

article

Precisely Manipulating Molecular Packing via Tuning Alkyl Side‐Chain Topology Enabling High‐Performance Nonfused‐Ring Electron Acceptors

Ziyang Han, Cai'e Zhang, Tengfei He, Jinhua Gao, more

Angewandte Chemie International Edition > 63 > 10 > n/a - n/a

In the development of high‐performance organic solar cells (OSCs), the self‐organization of organic semiconductors plays a crucial role. This study focuses on the precisely manipulation of molecular assemble via tuning alkyl side‐chain topology in a series of low‐cost nonfused‐ring electron acceptors (NFREAs). Among the three NFREAs investigated, DPA‐4, which possesses an asymmetric alkyl side‐chain...

article

Precisely Manipulating Molecular Packing via Tuning Alkyl Side‐Chain Topology Enabling High‐Performance Nonfused‐Ring Electron Acceptors

Ziyang Han, Cai'e Zhang, Tengfei He, Jinhua Gao, more

Angewandte Chemie > 136 > 10 > n/a - n/a

article

Optimal allocation of urban and rural water supply in coastal water shortage cities: The case of Yingkou City

Yufeng Lv, Na Yu, Haibo Sun, Hongpeng Li, more

Irrigation and Drainage > 73 > 1 > 257 - 269

Coastal cities play a significant role in regional economic development and national water resource supply. However, the shortage of water resources in coastal cities has become a bottleneck for sustainable economic, social and ecological development. As a typical coastal city in Liaoning province, China, Yingkou has a relatively developed economy, but faces increasingly serious water shortages. Taking...

article

An OBP gene highly expressed in non‐chemosensory tissues affects the phototaxis and reproduction of Spodoptera frugiperda

Wei‐Kang Han, Feng‐Xian Tang, Yang‐Yang Yan, Yan Wang, more

Insect Molecular Biology > 33 > 1 > 81 - 90

Insect odorant binding proteins (OBPs) were initially regarded as carriers of the odorants involved in chemosensation. However, it had been observed that a growing number of OBP genes exhibited broad expression patterns beyond chemosensory tissues. Here, an OBP gene (OBP31) was found to be highly expressed in the larval ventral nerve cord, adult brain and male reproductive organ of Spodoptera frugiperda...

article

In Situ Photoisomerization of an Azobenzene‐Based Triple Helicate with a Prolonged Thermal Relaxation Time

Jiajia Zhu, Xiao‐Wen Sun, Xintong Yang, Shu‐Na Yu, more

Angewandte Chemie International Edition > 62 > 51 > n/a - n/a

The phosphate‐coordination triple helicates A₂L₃ (A=anion) with azobenzene‐spaced bis‐bis(urea) ligands (L) have proven to undergo a rare in situ photoisomerization (without disassembly of the structure) rather than the typically known, stepwise “disassembly‐isomerization‐reassembly” process. This is enabled by the structural self‐adaptability of the “aniono” assembly arising from multiple relatively...

article

In Situ Photoisomerization of an Azobenzene‐Based Triple Helicate with a Prolonged Thermal Relaxation Time

Jiajia Zhu, Xiao‐Wen Sun, Xintong Yang, Shu‐Na Yu, more

Angewandte Chemie > 135 > 51 > n/a - n/a

article

Loss of ARHGAP40 expression in basal cell carcinoma via CpG island hypermethylation

Na Yu, Bei Yuan, Jian Cai, Jie Liu, more

Experimental Dermatology > 32 > 12 > 2094 - 2101

Basal cell carcinoma (BCC) is the most common malignant tumour arising from the basal cells of the epidermis or follicular structures. The aetiology of BCC is a multifactorial combination of genotype, phenotype and environmental factors. The pathogenesis of BCC remains unclear, with diverse and complex signalling pathways involved. ARHGAP40 is a Rho GTPase‐activating protein (RhoGAP). Rho GTPases...

article

Insecticidal toxicity of ω‐Atypitoxin‐Cs1a and its inhibitory effects on insect voltage‐gated calcium channels

Na Yu, Yangyang Yan, Qianqian Han, Lingchun Zhang, more

Pest Management Science > 79 > 12 > 4879 - 4885

BACKGROUND Excessive use of chemical insecticides raises concerns about insecticide resistance, urging the development of novel insecticides. Peptide neurotoxins from spider venom are an incredibly rich source of ion channel modulators with potent insecticidal activity. A neurotoxin U1‐Atypitoxin‐Cs1a from the spider Calommata signata was annotated previously. It was of interest to investigate its...

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INFONA - science communication portal

Search results for: Na Yu

Catalytic Enantioselective Synthesis of Inherently Chiral Calix[4]arenes via Sequential Povarov Reaction and Aromatizations

Catalytic Enantioselective Synthesis of Inherently Chiral Calix[4]arenes via Sequential Povarov Reaction and Aromatizations

m‐Aminophenylacetylene induces maternal care in a predatory spider

Prediction of total volatile basic nitrogen (TVB‐N) in fish meal using a metal‐oxide semiconductor electronic nose based on the VMD‐SSA‐LSTM algorithm

Suppression of Thermally Induced Surface Traps in Colloidal Quantum Dot Solids via Ultrafast Pulsed Light (Small 36/2024)

Suppression of Thermally Induced Surface Traps in Colloidal Quantum Dot Solids via Ultrafast Pulsed Light

Precisely Regulating Intermolecular Interactions and Molecular Packing of Nonfused‐Ring Electron Acceptors via Halogen Transposition for High‐Performance Organic Solar Cells

Precisely Regulating Intermolecular Interactions and Molecular Packing of Nonfused‐Ring Electron Acceptors via Halogen Transposition for High‐Performance Organic Solar Cells

Synergistic Bulk and Surface Engineering for Expeditious and Durable Reversible Protonic Ceramic Electrochemical Cells Air Electrode

Disorder‐Broadened Phase Boundary with Enhanced Amorphous Superconductivity in Pressurized In₂Te₅

Simple‐Structured Acceptor with Highly Interconnected Electron‐Transport Pathway Enables High‐Efficiency Organic Solar Cells

Soil condition determines how crop residues affect soil compressive characteristics

Precisely Manipulating Molecular Packing via Tuning Alkyl Side‐Chain Topology Enabling High‐Performance Nonfused‐Ring Electron Acceptors

Precisely Manipulating Molecular Packing via Tuning Alkyl Side‐Chain Topology Enabling High‐Performance Nonfused‐Ring Electron Acceptors

Optimal allocation of urban and rural water supply in coastal water shortage cities: The case of Yingkou City

An OBP gene highly expressed in non‐chemosensory tissues affects the phototaxis and reproduction of Spodoptera frugiperda

In Situ Photoisomerization of an Azobenzene‐Based Triple Helicate with a Prolonged Thermal Relaxation Time

In Situ Photoisomerization of an Azobenzene‐Based Triple Helicate with a Prolonged Thermal Relaxation Time

Loss of ARHGAP40 expression in basal cell carcinoma via CpG island hypermethylation

Insecticidal toxicity of ω‐Atypitoxin‐Cs1a and its inhibitory effects on insect voltage‐gated calcium channels

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