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100 项与中国科学院福建物质结构研究所相关的临床结果

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0 项与中国科学院福建物质结构研究所相关的专利（医药）

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4,483

项与中国科学院福建物质结构研究所相关的文献（医药）

2025-01-01·Journal of Colloid and Interface Science

Improving CO2 electroconversion by customizing the hydroxyl microenvironment around a semi-open Co-N2O2 configuration

Article

作者: Wei, Wenbo ; Han, Shu-Guo ; Zhou, Shenghua ; Ma, Dong-Dong ; Wang, San-Mei ; Zhu, Qi-Long

Constructing local microenvironments is one of the important strategies to improve the electrocatalytic performances, such as in electrochemical CO₂ reduction (ECR). However, effectively customizing these microenvironments remains a significant challenge. Herein, utilizing carbon nanotube (CNT) heterostructured semi-open Co-N₂O₂ catalytic configurations (Co-salophen), we have demonstrated the role of the local microenvironment on promoting ECR through regulating the location of hydroxyl groups. Concretely, compared with the maximum Faradaic efficiency (FE) of 62% for carbon monoxide (CO) presented by Co-salophen/CNT without a hydroxyl microenvironment, the designed Co-salophen-OH₃/CNT, featuring hydroxyl groups at the Co-N₂O₂ structural opening, shows remarkable CO₂-to-CO electroreduction activity across a wide potential window, with the FE of CO up to 95%. In particular, through the deuterium kinetic isotope experiments and theoretical calculations, we decoded that the hydroxyl groups act as a proton relay station, promoting the efficient transfer of protons to the Co-N₂O₂ active sites. The finding demonstrates a promising molecular design strategy for enhancing electrocatalysis.

2025-01-01·Biomaterials Advances

Construction of chitosan/carboxylated polyvinyl alcohol/poly(N-isopropylacrylamide) composite antibacterial hydrogel for rapid wound healing

Article

作者: Lai, Jun ; Lin, JinXin ; Li, Lan ; Hong, RuChen ; Mai, DongYi ; Lu, YanJin ; Dai, LiJun

In the realm of skin injury management, the expedited closure of wounds, prevention of scar formation, and enhancement of the healing process are of critical significance. The creation of economical dressings that effectively facilitate swift wound sealing in the initial phase of skin trauma while curbing scar development represents a promising avenue for clinical utility. Within the context of this investigation, we synthesized a novel hydrogel composed of chitosan (CS), carboxylated poly(vinyl alcohol) (PVA-COOH) via a Schiff base reaction between carboxylated PVA and chitosan, yielding networks abundant in amide bonds. Following this, a chitosan/carboxylated PVA/poly(N-isopropylacrylamide) hydrogel (CNP) was engineered by incorporating poly-N-isopropylacrylamide chains for interpenetration at ambient temperature. Our findings indicate that the CNP hydrogel exhibits favorable degradability and swelling characteristics. Moreover, it possesses favorable antimicrobial efficacy and biocompatibility. In a murine full-thickness skin injury model, the hydrogel was found to expedite wound healing by augmenting granulation tissue formation, mitigating wound inflammation, and promoting angiogenesis.

2024-12-01·Nano-Micro Letters

Strongly Coupled Ag/Sn–SnO2 Nanosheets Toward CO2 Electroreduction to Pure HCOOH Solutions at Ampere-Level Current

Article

作者: Cao, Aihui ; Han, Guang ; Zhang, Min ; Gan, Li-Yong ; Xiang, Yucui ; Ding, Junjie ; Zhou, Xiaoyuan ; Ban, Chaogang

AbstractElectrocatalytic reduction of CO2 converts intermittent renewable electricity into value-added liquid products with an enticing prospect, but its practical application is hampered due to the lack of high-performance electrocatalysts. Herein, we elaborately design and develop strongly coupled nanosheets composed of Ag nanoparticles and Sn–SnO2 grains, designated as Ag/Sn–SnO2 nanosheets (NSs), which possess optimized electronic structure, high electrical conductivity, and more accessible sites. As a result, such a catalyst exhibits unprecedented catalytic performance toward CO2-to-formate conversion with near-unity faradaic efficiency (≥ 90%), ultrahigh partial current density (2,000 mA cm−2), and superior long-term stability (200 mA cm−2, 200 h), surpassing the reported catalysts of CO2 electroreduction to formate. Additionally, in situ attenuated total reflection-infrared spectra combined with theoretical calculations revealed that electron-enriched Sn sites on Ag/Sn–SnO2 NSs not only promote the formation of *OCHO and alleviate the energy barriers of *OCHO to *HCOOH, but also impede the desorption of H*. Notably, the Ag/Sn–SnO2 NSs as the cathode in a membrane electrode assembly with porous solid electrolyte layer reactor can continuously produce ~ 0.12 M pure HCOOH solution at 100 mA cm−2 over 200 h. This work may inspire further development of advanced electrocatalysts and innovative device systems for promoting practical application of producing liquid fuels from CO2.

100 项与中国科学院福建物质结构研究所相关的药物交易

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100 项与中国科学院福建物质结构研究所相关的转化医学

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