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  • Royal Society of Chemistry (RSC)  (8)
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  • Royal Society of Chemistry (RSC)  (8)
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  • 1
    Online Resource
    Online Resource
    Phosphole-N-phenylmaleimide [4+2] cycloadducts as synthetic equivalents of nucleophilic phosphinidenes
    Royal Society of Chemistry (RSC) ; 2009
    In:  Chemical Communications , No. 18 ( 2009), p. 2589-
    Details
    In: Chemical Communications, Royal Society of Chemistry (RSC), , No. 18 ( 2009), p. 2589-
    Type of Medium: Online Resource
    ISSN: 1359-7345 , 1364-548X
    URL: Article
    DOI: 10.1039/b901154d
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2009
    detail.hit.zdb_id: 1472881-3
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  • 2
    Online Resource
    Online Resource
    Metformin and cyanidin 3- O -galactoside from Aronia melanocarpa synergistically alleviate cognitive impairment in SAMP8 mice
    Royal Society of Chemistry (RSC) ; 2021
    In:  Food & Function Vol. 12, No. 21 ( 2021), p. 10994-11008
    Details
    In: Food & Function, Royal Society of Chemistry (RSC), Vol. 12, No. 21 ( 2021), p. 10994-11008
    Abstract: Cyanidin 3- O -galactoside (Cy3Gal) from Aronia melanocarpa has been reported to alleviate cognitive impairment. Metformin for preventing the neurodegenerative disease is attracting increasing attention. However, the neuroprotective and metabolic health promoting both of their effects are not clear. We chose the senescence accelerated mouse prone 8 (SAMP8) as a model of spontaneous learning and memory impairment. This study aimed to investigate the synergistic neuroprotective effect of metformin and Cy3Gal by behavioral and histopathological assays and metabolite analysis in SAMP8 mice. The SAMR1 mice were the normal group, and the SAMP8 mice were divided into five groups, including the SAMP8 model group, the donepezil (1 mg kg −1 , ig) group, the metformin (100 mg kg −1 , ig) group, the Cy3Gal (25 mg kg −1 , ig) group, and the combination of metformin plus Cy3Gal (Met + Cy3Gal, 100 mg kg −1 , 25 mg kg −1 , ig) group. The behavior experiments showed that the SAMP8 mice treated with metformin and Cy3Gal showed improved spatial learning and memory compared to the SAMP8 model group. The number of neurons in the Met + Cy3Gal group was significantly higher than that in the SAMP8 group and the Met + Cy3Gal group showed significantly reduced Aβ aggregation in the brain, which was elevated in SAMP8 mice. Compared with SAMP8 mice, the Met + Cy3Gal group showed decreased indole, methyl esters and ketones and increased short-chain fatty acids and alcohols in feces and urine by regulating the fatty acid biosynthesis and degradation. This study confirmed the neuroprotective effects of coadministration of metformin and cyanidin 3- O -galactoside in the SAMP8 mice, and suggested its positive effect on postponing the progression of Alzheimer's disease.
    Type of Medium: Online Resource
    ISSN: 2042-6496 , 2042-650X
    URL: Article
    DOI: 10.1039/D1FO02122B
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2021
    detail.hit.zdb_id: 2578152-2
    SSG: 21
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Wound dressing change facilitated by spraying zinc ions
    Royal Society of Chemistry (RSC) ; 2020
    In:  Materials Horizons Vol. 7, No. 2 ( 2020), p. 605-614
    Details
    In: Materials Horizons, Royal Society of Chemistry (RSC), Vol. 7, No. 2 ( 2020), p. 605-614
    Type of Medium: Online Resource
    ISSN: 2051-6347 , 2051-6355
    URL: Article
    DOI: 10.1039/C9MH01255A
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2020
    detail.hit.zdb_id: 2744250-0
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  • 4
    Online Resource
    Online Resource
    Ultrasmall iridium nanoparticles on graphene for efficient nitrogen reduction reaction
    Royal Society of Chemistry (RSC) ; 2022
    In:  New Journal of Chemistry Vol. 46, No. 12 ( 2022), p. 5464-5469
    Details
    In: New Journal of Chemistry, Royal Society of Chemistry (RSC), Vol. 46, No. 12 ( 2022), p. 5464-5469
    Abstract: Electrochemical N 2 fixation using renewable electricity in water provides a renewable route for artificial NH 3 synthesis, whereas developing active and selective catalysts is highly necessary for an efficient N 2 reduction reaction (NRR) process. In this work, we report ultrasmall iridium nanoparticles on reduced graphene oxide (Ir/RGO) as an effective NRR electrocatalyst, achieving an NH 3 yield of 55.6 μg h −1 mg −1 with a faradaic efficiency of 15.3% at −0.3 V (RHE), outperforming most previously reported catalysts. Density functional theory calculations reveal that Ir is active for the NRR, while the RGO can further boost the NRR activity of supported Ir by imparting the enriched electrons on Ir that induce the upshift of the d-band center, resulting in enhanced N 2 adsorption and a decreased energy barrier for the potential-determining step.
    Type of Medium: Online Resource
    ISSN: 1144-0546 , 1369-9261
    URL: Article
    DOI: 10.1039/D1NJ05843F
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2022
    detail.hit.zdb_id: 1472933-7
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  • 5
    Online Resource
    Online Resource
    Theoretical insights into the central “acceptor” bridge function on the whole visible light and near-infrared emission in tetraphenylpyrazine-based luminogens
    Royal Society of Chemistry (RSC) ; 2022
    In:  New Journal of Chemistry Vol. 46, No. 35 ( 2022), p. 16932-16940
    Details
    In: New Journal of Chemistry, Royal Society of Chemistry (RSC), Vol. 46, No. 35 ( 2022), p. 16932-16940
    Abstract: Tetraphenylpyrazine (TPP) is a conspicuous heterocyclic fluorophore with an aggregation-enhanced emission (AEE) character. In general, the TPP building block is considered either a molecular rotor or an electron acceptor in the construction of its derivatives. Therefore, a faint-blue emission is expected in its solution. Herein, we concentrated on a series of unusual DTPP-A type analogues, where two TPP units (DTPP) were connected using the electron-accepting group (A), i.e. , benzodiazine (BQ), benzothiadiazole (BZ), thienyldioxide (TO), naphthothiadiazole (NZ) and benzobisthiadiazole (B2Z). The excited-state properties of two experimentally available compounds (DTPP-BZ and DTPP-TO) and three theoretically designed molecules (DTPP-BQ, DTPP-NZ and DTPP-B2Z) were studied by employing time-dependent density functional theory coupled with thermal vibration correlation function formalism. The tetrahydrofuran solvent environment was mimicked through the polarizable continuum model. It was found that the TPP components turned into electronic donors in these DTPP-A type systems, and the emission color widened from blue to red and even to near-infrared upon increasing the electron-accepting ability of the central bridge. The excitons localized on the central “acceptor” bridge offer sufficient orbital overlaps and contribute to the effective radiative transition. The rotation behaviors of the phenyls in the TPP components are also restricted upon such linkage, which could reduce the relaxation energy and give rise to a much slower non-radiative decay process. Thus, the emission of the bridged systems is boosted in solution though TPP itself is an AEE element. The present study provides a valuable strategy for the molecular design of heterocycle-containing emitters with whole visible light and near-infrared emission.
    Type of Medium: Online Resource
    ISSN: 1144-0546 , 1369-9261
    URL: Article
    DOI: 10.1039/D2NJ03596K
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2022
    detail.hit.zdb_id: 1472933-7
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  • 6
    Online Resource
    Online Resource
    Polymerization of methylsilylenes into polymethylsilanes or polycarbosilanes after dechlorination of dichloromethylsilanes?
    Royal Society of Chemistry (RSC) ; 2016
    In:  RSC Advances Vol. 6, No. 25 ( 2016), p. 21048-21055
    Details
    In: RSC Advances, Royal Society of Chemistry (RSC), Vol. 6, No. 25 ( 2016), p. 21048-21055
    Type of Medium: Online Resource
    ISSN: 2046-2069
    URL: Article
    DOI: 10.1039/C5RA27889A
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2016
    detail.hit.zdb_id: 2623224-8
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  • 7
    Online Resource
    Online Resource
    Using machine learning to screen non-graphite carbon materials based on Na-ion storage properties
    Royal Society of Chemistry (RSC) ; 2022
    In:  Journal of Materials Chemistry A Vol. 10, No. 14 ( 2022), p. 8031-8046
    Details
    In: Journal of Materials Chemistry A, Royal Society of Chemistry (RSC), Vol. 10, No. 14 ( 2022), p. 8031-8046
    Abstract: Non-graphite carbon materials are composed of basic carbon layer units, such as soft carbon, hard carbon, and reduced oxide graphene, and an increasing number of studies on various non-graphite carbon materials are being performed in sodium-ion batteries (SIBs). However, it is difficult to relate the different non-graphite anodes, and a systematic analysis of the correlation between the non-graphite carbon structure and sodium storage properties is lacking. Moreover, there is no strategy to screen for high-performance electrode materials by using the database from the Web of Science. In this study, the effects of crystallinity, an essential attribute of basic microstructural units, on the sodium storage properties have been identified and analyzed. The key structural parameters characterizing the crystallinity were explored. A structure–property database was built based on these parameters ( L a , L c , d 002 , and I D / I G ) and the main performance data. The data analysis results were used in conjunction with thermodynamic and kinetic analysis to systematically evaluate the effects of these parameters on the sodium storage performance. Finally, machine learning was used to effectively screen for optimal structural parameters, and a standardized process was proposed for the preparation of high-performance electrode materials programmatically, enabling the continuously updated database to effectively guide the scientific research and engineering application of non-graphite carbon materials.
    Type of Medium: Online Resource
    ISSN: 2050-7488 , 2050-7496
    URL: Article
    DOI: 10.1039/D1TA10588D
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2022
    detail.hit.zdb_id: 2702232-8
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  • 8
    Online Resource
    Online Resource
    Theoretical characterization of two-photon fluorescent probes for nitric oxide detection: sensing mechanism, photophysical properties and protonation effects
    Royal Society of Chemistry (RSC) ; 2023
    In:  Physical Chemistry Chemical Physics Vol. 25, No. 29 ( 2023), p. 19932-19942
    Details
    In: Physical Chemistry Chemical Physics, Royal Society of Chemistry (RSC), Vol. 25, No. 29 ( 2023), p. 19932-19942
    Abstract: Nitric oxide (NO) is an important signal molecule in biological systems and is correlated with many physiological processes and pathological diseases. To date, numerous fluorescent probes based on o -diamino aromatics have been designed and synthesized for NO detection utilizing the principle of photoinduced electron transfer (PET). However, the underlying PET mechanism has rarely been validated, and a systematic computational study on the photophysical properties is urgently desired. In this study, we used a theoretical protocol to comparatively investigate the sensing mechanism, photophysical properties and protonation effects of two emblematic probes NINO and PYSNO in aqueous solution, which combines a polarizable continuum model (PCM), time-dependent density functional theory (TD-DFT) and thermal vibration correlation function formalism (TVCF). Our findings reveal that the weak emission of NINO is due to activated PET with negative driving energy and blocked fluorescence with significant charge separation. In contrast, the poor luminescence of PYSNO is caused by the facilitated non-radiative dissipation, even though the fluorescence emission remains unobstructed. Although NINO has been successfully used in two-photon microscopy for detecting NO, we suggest that PYSNO possesses a superior two-photon absorption (TPA) cross section in the near-infrared region. The protonation effects suggest that both probes can function effectively in practical acidic lysosomal environments. Our study opens a new avenue for understanding the mechanism and predicting the properties of two-photon fluorescent probes for NO detection, thus aiding the rational design of efficient fluorescent sensors.
    Type of Medium: Online Resource
    ISSN: 1463-9076 , 1463-9084
    URL: Article
    DOI: 10.1039/D3CP01091K
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2023
    detail.hit.zdb_id: 1476283-3
    detail.hit.zdb_id: 1476244-4
    detail.hit.zdb_id: 1460656-2
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