Chemistry-An Asian Journal
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2022
·Vol. 17
·期 13
·e202200141
·
IF 4.839
Shuai-Cong Huo,Yao Li,De-Xiang Zhang,Qi Zhou,Ying Yang,Herbert W. Roesky
Graphical A series of digermylenes R(EGeL) 2 (L=CH[C(Me)N(Ar)] 2 , Ar=2,6- i Pr 2 C 6 H 3 ; E=O, R=1,3-C 6 H 4 ( 1 ), 1,4-C 6 H 4 ( 2 ), Me 2 C(CH 2 ) 2 ( 3 ); E=NH, R=1,4-C 6 H 4 ( 4) , 1,4-C 6 H 10 , ( 5 ); E=C(O)O, R=1,3-C 6 H 4 ( 6 )) were synthesized by the nucleophilic addition of diphenols, diol, diamines and dicarboxylic acids, respectively, with L′Ge (L′=HC[C(CH 2 )N(Ar)]C(Me)N(Ar), Ar=2,6- i Pr 2 C 6 H 3 ). Treatment of the obtained digermylene 1,3-C 6 H 4 (OGeL) ( 1 ) with sulfur, selenium, and CuX (X=Cl, Br, I, C 6 F 6 ) is also explored. A series of digermylenes R(EGeL) 2 (L=CH[C(Me)N(Ar)] 2 , Ar=2,6- i Pr 2 C 6 H 3 ; E=O, R=1,3-C 6 H 4 ( 1 ), 1,4-C 6 H 4 ( 2 ), Me 2 C(CH 2 ) 2 ( 3 ); E=NH, R=1,4-C 6 H 4 ( 4) , 1,4-C 6 H 10 ( 5 ); E=C(O)O, R=1,3-C 6 H 4 ( 6 )) were synthesized by the reactions of L′Ge (L′=HC[C(CH 2 )N(Ar)]C(Me)N(Ar), Ar=2,6- i Pr 2 C 6 H 3 ) with selected diphenols, diol, diamines, and o -/ m -phthalic acids, respectively. Treatment of digermylene 1,3-C 6 H 4 (OGeL) 2 ( 1 ) with sulfur, selenium and CuX (X=Cl, Br, I) led to the formation of 1,3-C 6 H 4 [OGe(S)L] 2 ( 8 ), 1,3-C 6 H 4 [OGe(Se)L] 2 ( 9 ), and (CuX) 2 [1,3-C 6 H 4 (OGeL) 2 ] 2 (X=Cl ( 10 ), Br ( 11 ), I ( 12 )), respectively. The obtained products were characterized by melting point, elemental analysis, FT-IR, 1 H and 13 C NMR spectroscopy, and single-crystal X-ray diffraction.
研究领域:
无机化学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2022
·
IF 8.025
Xin Wang,Xinyu Sun,Tong Bu,Ke Xu,Lihua Li,Mingyan Li,Ruixia Li,Li Wang
The elaborate design of an ingenious hydrogel-assisted photothermal therapy (PTT) platform is a promising strategy for treating bacterial wound infections. Herein, a new generation of germanene nanocrystals (Ge NCs) with excellent photothermal performance are prepared via an ice-bath sonication liquid-phase exfoliation technique. Whereafter, by crosslinking interaction between chitosan and zinc acetate, as well as self-assembly property between Ge NCs and chitosan, we successfully construct an innovative germanene-modified chitosan antimicrobial hydrogel (CS/Ge NCs 0.8 ) integrating capture and killing bacteria performances. When co-cultured with bacteria, CS/Ge NCs 0.8 hydrogel with the positive charge can adsorb and restrict bacteria in the range of PTT destruction. Once the near-infrared laser is introduced, CS/Ge NCs 0.8 hydrogel will effectively convert light energy into localized heat, further inducing bacterial death. By this entirely novel modality, CS/Ge NCs 0.8 hydrogel exhibits marvelous antibacterial property against E. coli and S. aureus in vitro. Furthermore, in vivo studies demonstrate that CS/Ge NCs 0.8 hydrogel possesses the ability to significantly rescue S. aureus -induced skin wound infections, suggesting CS/Ge NCs 0.8 hydrogel can be served as an antibacterial dressing. Strikingly, this is the first-ever report of CS/Ge NCs 0.8 hydrogel in the antibacterial field, which may spur a wave of developing Ge-based biomaterials to benefit biomedical applications.
研究领域:
生物医学工程
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材料科学
·
微生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SENSORS
·
2025
·Vol. 25
·期 8
·2530
·
IF 3.5
Junting Zhang,Jiexin Chen,Shuojia Zheng,Da Zhang,Shaojuan Luo,Huixia Luo
HighlightsWhat are the main findings?A facile chemical strategy was developed for the synthesis of two-dimensional Te-doped GeH nanostructures with atomic-level precision and structural integrity.The Te-GeH-based photoelectrochemical (PEC) photodetectors exhibit high responsivity (708.5 µA/W) and ultrafast response speeds (92 ms rise/526 ms decay) under zero-bias conditions, demonstrating excellent broadband photoresponse.What is the implication of the main finding?The introduction of Te atoms enables effective modulation of the electronic structure in the GeH system. Owing to the comparable atomic radius between Te and Ge, efficient doping is achieved without disrupting the host lattice. In addition, the high electronegativity of Te induces electron redistribution and facilitates the formation of a built-in electric field, thereby optimizing charge separation and transport behavior. This approach provides a novel pathway for the functional design of Zintl-phase-derived two-dimensional materials, with broad implications for advanced optoelectronic applications.This doping strategy significantly enhances the photoelectrochemical performance of GeH-based photodetectors and enables the scalable fabrication of 2D nanomaterials with tunable optoelectronic properties. The resulting Te-GeH nanostructures offer improved carrier dynamics and reduced recombination, serving as a promising material platform for next-generation self-powered broadband photodetectors.Two-dimensional (2D) Xenes, including graphene where X represents C, Si, Ge, and Te, represent a groundbreaking class of materials renowned for their extraordinary electrical transport properties, robust photoresponse, and Quantum Spin Hall effects. With the growing interest in 2D materials, research on germanene-based systems remains relatively underexplored despite their potential for tailored optoelectronic functionalities. Herein, we demonstrate a facile and rapid chemical synthesis of tellurium-doped germanene hydride (Te-GeH) nanostructures (NSs), achieving precise atomic-scale control. The 2D Te-GeH NSs exhibit a broadband optical absorption spanning ultraviolet (UV) to visible light (VIS), which is a critical feature for multifunctional photodetection. Leveraging this property, we engineer photoelectrochemical (PEC) photodetectors via a simple drop-casting technique. The devices deliver excellent performance, including a high responsivity of 708.5 µA/W, ultrafast response speeds (92 ms rise, 526 ms decay), and a wide operational bandwidth. Remarkably, the detectors operate efficiently at zero-bias voltage, outperforming most existing 2D-material-based PEC systems, and function as self-powered broadband photodetectors. This work not only advances the understanding of germanene derivatives but also unlocks their potential for next-generation optoelectronics, such as energy-efficient sensors and adaptive optical networks.
研究领域:
材料科学
·
光学工程
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）