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  • Royal Society of Chemistry (RSC)  (30)
  • 2020-2024  (30)
  • 2024  (30)
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  • Royal Society of Chemistry (RSC)  (30)
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  • 2020-2024  (30)
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  • 2024  (30)
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  • 1
    Online Resource
    Online Resource
    A capillary-based centrifugal indicator equipped with in situ pathogenic bacteria culture for fast antimicrobial susceptibility testing
    Royal Society of Chemistry (RSC) ; 2024
    In:  The Analyst Vol. 149, No. 8 ( 2024), p. 2420-2427
    Details
    In: The Analyst, Royal Society of Chemistry (RSC), Vol. 149, No. 8 ( 2024), p. 2420-2427
    Abstract: Antimicrobial resistance has become a major global health threat due to the misuse and overuse of antibiotics. Rapid, affordable, and high-efficiency antimicrobial susceptibility testing (AST) is among the effective means to solve this problem. Herein, we developed a capillary-based centrifugal indicator (CBCI) equipped with an in situ culture of pathogenic bacteria for fast AST. The bacterial incubation and growth were performed by macro-incubation, which seamlessly integrated the capillary indicator. Through simple centrifugation, all the bacterial cells were confined at the nanoliter-level capillary column. The packed capillary column height could linearly reflect the bacterial count, and the minimum inhibitory concentration (MIC) was determined based on the difference in the column height between the drug-added groups and the control group. The AST results could easily be determined by the naked eye or smartphone imaging. Thus, the CBCI realized the combination of macro-bacterial incubation and early micro assessment, which accelerated the phenotypic AST without complex microscopic counting or fluorescent labelling. The whole operation process was simple and easy to use. AST results could be determined for E. coli ATCC strains within 3.5 h, and the output results for clinical samples were consistent with the hospital reports. We expect this AST platform to become a useful tool in limiting antimicrobial resistance, especially in remote/resource-limited areas or in underdeveloped countries.
    Type of Medium: Online Resource
    ISSN: 0003-2654 , 1364-5528
    URL: Article
    DOI: 10.1039/D3AN02144K
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2024
    detail.hit.zdb_id: 210747-8
    detail.hit.zdb_id: 1472713-4
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  • 2
    Online Resource
    Online Resource
    Selective nickel-catalyzed disulfuration of alkyl halides with di/trithiosulfonates
    Royal Society of Chemistry (RSC) ; 2024
    In:  Organic Chemistry Frontiers Vol. 11, No. 11 ( 2024), p. 3196-3203
    Details
    In: Organic Chemistry Frontiers, Royal Society of Chemistry (RSC), Vol. 11, No. 11 ( 2024), p. 3196-3203
    Abstract: The utilization of electrophilic di/trithiosulfonates in nickel-catalyzed reductive coupling for selective conversion has rarely been investigated, and the activation modes are also unclear and challenging. Here we report the selective reductive disulfuration of a wide variety of alkyl halides using di/trithiosulfonate reagents enabled by a simple dual-role nickel catalyst and reductant. This excellent selectivity can be achieved through ligand regulation. Mechanistic studies suggest that the key aspect of this reaction could be the employment of the differential reduction potential of PhSO 2 (S) n R ( n = 2, 3; R = alkyl) favoring reduction to alkyl tetrasulfide species for selective thiolation in a controllable fashion. This strategy might provide new opportunities and mechanistic insights for nickel-catalyzed coupling of di/trithiosulfonate reagents with various alkyl halides to access valuable disulfide products with good functional group compatibility.
    Type of Medium: Online Resource
    ISSN: 2052-4129
    URL: Article
    DOI: 10.1039/D4QO00411F
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2024
    detail.hit.zdb_id: 2757215-8
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  • 3
    Online Resource
    Online Resource
    Extrapolation study for determining the time since injury in a rat subcutaneous hematoma model utilizing ATR-FTIR spectroscopy
    Royal Society of Chemistry (RSC) ; 2024
    In:  Analytical Methods Vol. 16, No. 8 ( 2024), p. 1272-1280
    Details
    In: Analytical Methods, Royal Society of Chemistry (RSC), Vol. 16, No. 8 ( 2024), p. 1272-1280
    Abstract: The determination of the time of an injury has been a major problem in forensic science due to the lack of objective, reliable and portable methods. In this study, a subcutaneous hemorrhage model in rats was established over six days, and attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy coupled with chemometrics was used to determine the time since injury. Initial principal component analysis (PCA) showed variance among hematoma sites. Subsequently, spectral data were acquired to establish a dependable partial least square (PLS) regression model with predictive abilities. The root mean square error of cross-validation (RMSECV) and the root mean square error of prediction (RMSEP) values produced by a genetic algorithm (GA) were 0.64 d ( R 2 = 0.88) and 0.57 d ( R 2 = 0.90), respectively. Few variables were involved in the model, and significantly better results were obtained in comparison to the conventional full-spectrum PLS model. In combination with the results of variable importance in projection (VIP) scores, all components, including proteins, nucleic acids and phospholipids, provided inferences regarding the samples at different time points; additionally, amide I and II bands represented the secondary structure of proteins and provided the largest contribution. Based on our preliminary study, the combination of swift and nondamaging ATR-FTIR spectroscopy with chemometrics could prove to be an advantageous approach for gauging the age of an injury in the forensic field.
    Type of Medium: Online Resource
    ISSN: 1759-9660 , 1759-9679
    URL: Article
    DOI: 10.1039/D3AY01898A
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2024
    detail.hit.zdb_id: 2515210-5
    detail.hit.zdb_id: 2619048-5
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  • 4
    Online Resource
    Online Resource
    DLM–GelMA/tumor slice sandwich structured tumor on a chip for drug efficacy testing
    Royal Society of Chemistry (RSC) ; 2024
    In:  Lab on a Chip Vol. 24, No. 15 ( 2024), p. 3718-3727
    Details
    In: Lab on a Chip, Royal Society of Chemistry (RSC), Vol. 24, No. 15 ( 2024), p. 3718-3727
    Abstract: The in vitro recapitulation of tumor microenvironment is of great interest to preclinical screening of drugs. Compared with culture of cell lines, tumor organ slices can better preserve the complex tumor architecture and phenotypic activity of native cells, but are limited by their exposure to fluid shear and gradual degradation under perfusion culture. Here, we established a decellularized liver matrix (DLM)–GelMA “sandwich” structure and a perfusion-based microfluidic platform to support long-term culture of tumor slices with excellent structural integrity and cell viability over 7 days. The DLM–GelMA was able to secrete cytokines and growth factors while providing shear protection to the tumor slice via the sandwich structure, leading to the preservation of the tumor microenvironment where immune cells (CD3, CD8, CD68), tumor-associated fibroblasts (α-SMA), and extracellular matrix components (collagen I, fibronectin) were well maintained. Furthermore, this chip presented anti-tumor efficacy at cisplatin (20 μM) on tumor patients, demonstrating our platform's efficacy to design patient-specific treatment regimens. Taken together, the successful development of this DLM–GelMA sandwich structure on the chip could faithfully reflect the tumor microenvironment and immune response, accelerating the screening process of drug molecules and providing insights for practical medicine.
    Type of Medium: Online Resource
    ISSN: 1473-0197 , 1473-0189
    URL: Article
    DOI: 10.1039/D4LC00278D
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2024
    detail.hit.zdb_id: 2083768-9
    detail.hit.zdb_id: 2056646-3
    SSG: 12
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  • 5
    Online Resource
    Online Resource
    Heuristic process prediction model for screening optimal green entrainers based on TAC and LCA impacts utilizing PSE concepts
    Royal Society of Chemistry (RSC) ; 2024
    In:  Green Chemistry Vol. 26, No. 11 ( 2024), p. 6735-6747
    Details
    In: Green Chemistry, Royal Society of Chemistry (RSC), Vol. 26, No. 11 ( 2024), p. 6735-6747
    Abstract: The key to extractive distillation separation lies in screening a suitable entrainer. Based on chemical process system engineering (PSE) concepts, a novel heuristic process prediction model is proposed with a minimized process economic cost index (PECI) for the efficient screening of an optimal green entrainer with the advantages of cost-effectiveness, environmental friendliness, and sustainability, followed by outlining the principles of characterizations and mathematical modeling in chemical ED processes. The relationships of α HC/SOL and NTR with Q R , TAC, PECI, and LTEDI indicated that the heuristic process prediction model was scientifically valid as well as efficient. Moreover, the proposed model progresses from binomial intersecting influencing factors to trinomial juxtaposing influencing factors; summarizes and discloses the system's theoretical rules and influencing elements of the changes in parameters and their relative volatility, avoiding the new azeotropes in the solvent recovery column; reduces the workloads of process simulation and optimization of distillation processes from ( M × N ) times to (1 + N ) times; can be extended efficiently and accurately to provide the targeted prediction and systematic theoretical principles for separating different feed azeotropes, predicting and screening organic solvents, ionic liquids, deep eutectic solvents, and mixed solvents with the optimal TAC and environmental friendliness (AP and GWP) and sustainability (FETP, HTP, and TETP) as LCA impacts; has broad predictability and applicability combined with different process optimization algorithms; and provides infinite composite patterns and opportunities for integrating and developing innovative optimization module algorithms for future green chemical separation processes.
    Type of Medium: Online Resource
    ISSN: 1463-9262 , 1463-9270
    URL: Article
    DOI: 10.1039/D4GC00129J
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2024
    detail.hit.zdb_id: 1485110-6
    detail.hit.zdb_id: 2006274-6
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  • 6
    Online Resource
    Online Resource
    A bimetallic sulfide FeCoS 4 @rGO hybrid as a high-performance anode for potassium-ion batteries
    Royal Society of Chemistry (RSC) ; 2024
    In:  Chemical Communications Vol. 60, No. 50 ( 2024), p. 6411-6414
    Details
    In: Chemical Communications, Royal Society of Chemistry (RSC), Vol. 60, No. 50 ( 2024), p. 6411-6414
    Abstract: We synthesized a low metal-to-sulfur atomic ratio (0.5) FeCoS 4 , exhibiting high reversible specific capacity. Reduced graphene oxide was covered on the surface to improve the cycling stability and rate performance further. Density functional theory calculations show that composite materials can effectively increase the adsorption energy and enhance the diffusion kinetics.
    Type of Medium: Online Resource
    ISSN: 1359-7345 , 1364-548X
    URL: Article
    DOI: 10.1039/D4CC01026D
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2024
    detail.hit.zdb_id: 215830-9
    detail.hit.zdb_id: 1472881-3
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  • 7
    Online Resource
    Online Resource
    Portable hydroxyl-functionalized coal gangue-based cordierite porous ceramics sheets for effective adsorption of fluorine-containing wastewater
    Royal Society of Chemistry (RSC) ; 2024
    In:  RSC Advances Vol. 14, No. 21 ( 2024), p. 15155-15166
    Details
    In: RSC Advances, Royal Society of Chemistry (RSC), Vol. 14, No. 21 ( 2024), p. 15155-15166
    Abstract: Monolithic adsorbent removal of fluoride from water is considered an effective and non-secondary pollution method. Here, a portable hydroxyl-functionalized coal gangue-based cordierite porous ceramic sheet (ACGC-Fe) is prepared by using coal gangue solid waste with a specific silicon-aluminum-rich composition ratio and a small amount of magnesium oxide as a raw material through powder compression molding and mild chemical modification. The prepared ACGC-Fe can be used to treat fluorine-containing wastewater and the maximum adsorption of fluorine can reach 18.69 mg g −1 . The Langmuir (Freundlich) adsorption isotherm model and pseudo-second-order kinetic model here provided a satisfactory description of the fluoride removal operating mechanism, and it is confirmed that the adsorption mechanism of ACGC-Fe is mainly attributed to the chemisorption of hydrogen bonds (with hydroxyl group) and ionic bonds (with metal), and physical adsorption based on cordierite porous ceramic pores. This research will provide a new idea for designing high-performance materials by mining and analyzing the composition and structure characteristics of coal gangue solid waste itself and broaden the application range of high-value-added coal gangue solid waste.
    Type of Medium: Online Resource
    ISSN: 2046-2069
    URL: Article
    DOI: 10.1039/D4RA01928H
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2024
    detail.hit.zdb_id: 2623224-8
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  • 8
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    Tailoring the molecular size of alkylamine modifiers for fabricating efficient and stable inverted CsPbI 3 perovskite solar cells
    Royal Society of Chemistry (RSC) ; 2024
    In:  Journal of Materials Chemistry C Vol. 12, No. 28 ( 2024), p. 10604-10612
    Details
    In: Journal of Materials Chemistry C, Royal Society of Chemistry (RSC), Vol. 12, No. 28 ( 2024), p. 10604-10612
    Abstract: An inorganic perovskite CsPbI 3 with a suitable bandgap and excellent optoelectronic properties has attracted tremendous attention as a promising absorber in perovskite solar cells (PSCs). A surface modification strategy of introducing organic molecules with functional groups to treat perovskite films has been proven to be an effective route to achieve high-performance PSC devices. However, the effect of the molecular size of modifiers is almost ignored in surface passivation studies. In this work, three alkylamine modifiers with different molecular sizes were incorporated to post-treat CsPbI 3 films to systematically investigate the influence of alkyl chain length on device performance. It was found that the alkylamine treatments can remarkably ameliorate film morphology and interface contact, passivate defects, and increase hydrophobicity, resulting in greatly improved device efficiency and stability. In particular, the CsPbI 3 film treated with 1,5-pentanediamine (PDA) with a suitable chain length acquires optimum results owing to its most efficient passivation effect and suppressed nonradiative recombination. Consequently, the inverted PDA-based CsPbI 3 PSC exhibits a champion power conversion efficiency (PCE) of 19.52%, outperforming the control device with a PCE of 13.43% and other alkylamine-treated devices. Furthermore, both the unencapsulated PDA-treated CsPbI 3 films and PSC devices present considerably enhanced long-term stability. This work highlights the great significance of tailoring the molecular size of interfacial modifiers towards achieving efficient and stable inorganic PSCs.
    Type of Medium: Online Resource
    ISSN: 2050-7526 , 2050-7534
    URL: Article
    DOI: 10.1039/D4TC01871K
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2024
    detail.hit.zdb_id: 2702245-6
    detail.hit.zdb_id: 2705156-0
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  • 9
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    Shiny Quantum Dots: Synthesis, Properties, and Electroluminescent Light-emitting Diodes
    Royal Society of Chemistry (RSC) ; 2024
    In:  Journal of Materials Chemistry A
    Details
    In: Journal of Materials Chemistry A, Royal Society of Chemistry (RSC)
    Abstract: Quantum dots (QDs) are widely used in optoelectronics owing to their fascinating luminescent properties, high stability, and structural characteristics, especially in electroluminescent light-emitting diodes (EL-LEDs). In this review, we introduce the structures, fabrication methods, and optical properties of QDs, including traditional QDs (TQDs), perovskite QDs (PQDs), and carbon dots (CDs). In addition, an overview of recent research and development of QDs used in EL-LEDs is provided. The performance enhancement of EL-LEDs via the synthesis of precisely controlled TQDs and PQDs, ligand engineering, and device architecture optimization as well as possible solutions for CDs used as emissive layer materials in LEDs are also discussed. Finally, we reflect on the challenges and opportunities of current QD research.
    Type of Medium: Online Resource
    ISSN: 2050-7488 , 2050-7496
    URL: Article
    DOI: 10.1039/D4TA03218G
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2024
    detail.hit.zdb_id: 2702232-8
    detail.hit.zdb_id: 2696984-1
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  • 10
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    Ultrasmall iron oxide nanoparticles with MRgFUS for enhanced magnetic resonance imaging of orthotopic glioblastoma
    Royal Society of Chemistry (RSC) ; 2024
    In:  Journal of Materials Chemistry B Vol. 12, No. 20 ( 2024), p. 4833-4842
    Details
    In: Journal of Materials Chemistry B, Royal Society of Chemistry (RSC), Vol. 12, No. 20 ( 2024), p. 4833-4842
    Abstract: Ultrasmall iron oxide nanoparticles (USIO NPs) are expected to become the next generation T 1 contrast agents; however, their diagnostic and therapeutic potential for primary brain tumors (such as glioblastoma multiforme, GBM) is yet to be explored. At present, the main challenge is the effective hindering of biological barriers, including the blood–brain barrier (BBB) and the blood–brain tumor barrier (BBTB). Herein, we aimed to investigate whether the USIO NPs, in combination with MR-guided focused ultrasound (MRgFUS), could intensify MR imaging of GBM. In this study, we presented zwitterionic USIO NPs for enhanced MR imaging of both xenografted and orthotopic GBM mouse models. We first synthesized citric-stabilized USIO NPs with a size of 3.19 ± 0.76 nm, modified with ethylenediamine, and decorated with 1,3-propanesultone (1,3-PS) to form USIO NPs-1,3-PS. The obtained USIO NPs-1,3-PS exhibited good cytocompatibility and cellular uptake efficiency. MRgFUS, in combination with microbubbles, provided a non-invasive and safe technique for BBB opening, which, in turn, promoted the delivery of USIO NPs-1,3-PS in orthotopic GBM. This developed USIO NP nanoplatform may improve the precision imaging of solid tumors and therapeutic efficacy in the central nervous system.
    Type of Medium: Online Resource
    ISSN: 2050-750X , 2050-7518
    URL: Article
    DOI: 10.1039/D3TB02966B
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2024
    detail.hit.zdb_id: 2702241-9
    detail.hit.zdb_id: 2705149-3
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