Electrochemical reduction of carbon dioxide (CO2) to fuels and chemicals provides a promising solution for renewable energy storage and utilization. Among the many possible reaction pathways, CO2 ...conversion to carbon monoxide (CO) is the first step in the synthesis of more complex carbon‐based fuels and feedstocks, and holds great significance for the chemical industry. Herein, recent advances in heterogeneous catalysts for selective CO evolution from electrochemical reduction of CO2 are described. With Au catalysts as a paradigm, principles for catalyst design including size, morphology, and grain boundary densities tuning, surface modifications, as well as metal‐support interaction are comprehensively summarized, which shed light on the development of other transition metal catalysts targeting efficient CO2‐to‐CO conversion. In addition, recently emerged novel materials including transition metal single‐atom catalysts, which present significantly different catalytic behaviors compared to their bulk counterparts and thus open up many unexpected opportunities, are summarized. Furthermore, the technical aspects with respect to large‐scale production of CO are presented, focusing on the full‐cell design and implementation. Finally, short comments related to the future direction of real‐word CO2 electrolysis for CO supply are provided in terms of catalyst optimization and technical breakthrough.
Electrocatalytic CO2 reduction, powered by renewable energy sources, has provided a promising route for delocalized energy storage, chemical production applications, and more importantly, closing the carbon loop. The progress of CO2 electroreduction to CO is reviewed by introducing the recent advances in heterogeneous catalysts and the technical breakthroughs in large‐scale production of CO.
Retraction: Tingting Zheng, Intelligent distribution system of university student dormitory based on data fusion optimisation algorithm, IET Software 2023 (https://doi.org/10.1049/sfw2.12100).
The ...above article from IET Software, published online on 1 February 2023 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the Editor‐in‐Chief, Hana Chockler, the Institution of Engineering and Technology (the IET) and John Wiley and Sons Ltd. This article was published as part of a Guest Edited special issue. Following an investigation, the IET and the journal have determined that the article was not reviewed in line with the journal’s peer review standards and there is evidence that the peer review process of the special issue underwent systematic manipulation. Accordingly, we cannot vouch for the integrity or reliability of the content. As such we have taken the decision to retract the article. The authors have been informed of the decision to retract.
Traditional therapeutic and diagnostic tools exhibit serious side effects, poor selectivity, and sensitivity. Herein, a multifunctional CuPc@HG@BN theranostic platform composed of hexagonal boron ...nitride nanosheets (h‐BNNS), conjugated DNA oligonucleotide, and copper(II) phthalocyanine (CuPc) was developed in which the CuPc molecule played double key roles in photodynamic therapy (PDT) as well as in situ monitoring and imaging of miR‐21 by surface‐enhanced Raman spectroscopy (SERS). Owing to the designed circle amplification of miRNA and high SERS effects of CuPc on h‐BNNS, miR‐21 responsive concentration was achieved as low as 0.7 fm in live cells. Both in vitro and in vivo data demonstrated that the integrated nanoplatform showed remarkable enhancement in PDT efficiency with minimized damage to the normal tissues. The developed probe was also successfully utilized for early monitoring and guiding the early therapy, realizing tumor elimination.
A theranostic nanoplatform composed of h‐BN nanosheets, conjugated DNA oligonucleotide, and copper(II) phthalocyanine was constructed for SERS in situ monitoring of miR‐21 and photodynamic therapy. Real‐time monitoring of miR‐21 with this ultrasensitive, highly selective, and accurate theranostic nanoplatform has been successfully utilized for guiding early theranostics to improve breast cancer therapy efficiency.
Photodynamic therapy (PDT), as a non-invasive therapeutic modality that is alternative to radiotherapy and chemotherapy, is extensively investigated for cancer treatments. Although conventional ...organic photosensitizers (PSs) are still widely used and have achieved great progresses in PDT, the disadvantages such as hydrophobicity, poor stability within PDT environment and low cell/tissue specificity largely limit their clinical applications. Consequently, nano-agents with promising physicochemical and optical properties have emerged as an attractive alternative to overcome these drawbacks of traditional PSs. Herein, the up-to-date advances in the fabrication and fascinating applications of various nanomaterials in PDT have been summarized, including various types of nanoparticles, carbon-based nanomaterials, and two-dimensional nanomaterials, etc. In addition, the current challenges for the clinical use of PDT, and the corresponding strategies to address these issues, as well as future perspectives on further improvement of PDT have also been discussed.
The article has improved the contrast rate decomposition method, and based on this, it has compiled the 2007 and 2017 non supplementary input-output table of Shanxi Province. After deducting the ...influence of other provinces, it measures the role of various industries in economic growth. Through comparative analysis with the traditional input-output table, it is found that the role of resource industries in local economic growth has been seriously overestimated.
Developing bifunctional catalysts for both hydrogen and oxygen evolution reactions is a promising approach to the practical implementation of electrocatalytic water splitting. However, most of the ...reported bifunctional catalysts are only applicable to alkaline electrolyzer, although a few are effective in acidic or neutral media that appeals more to industrial applications. Here, a lithium‐intercalated iridium diselenide (Li‐IrSe2) is developed that outperformed other reported catalysts toward overall water splitting in both acidic and neutral environments. Li intercalation activated the inert pristine IrSe2 via bringing high porosities and abundant Se vacancies for efficient hydrogen and oxygen evolution reactions. When Li‐IrSe2 was assembled into two‐electrode electrolyzers for overall water splitting, the cell voltages at 10 mA cm−2 were 1.44 and 1.50 V under pH 0 and 7, respectively, being record‐low values in both conditions.
Lithium‐intercalated iridium diselenide (Li‐IrSe2) is presented, outperforming other reported catalysts toward overall water splitting in both acidic and neutral environments. Li intercalation activated the inert pristine IrSe2 by bringing about high porosities and abundant Se vacancies for efficient hydrogen and oxygen evolution reactions.
The current coronavirus disease 2019 (COVID-19) pandemic presents a global public health challenge. The viral pathogen responsible, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), binds ...to the host receptor ACE2 through its spike (S) glycoprotein, which mediates membrane fusion and viral entry. Although the role of ACE2 as a receptor for SARS-CoV-2 is clear, studies have shown that ACE2 expression is extremely low in various human tissues, especially in the respiratory tract. Thus, other host receptors and/or co-receptors that promote the entry of SARS-CoV-2 into cells of the respiratory system may exist. In this study, we found that the tyrosine-protein kinase receptor UFO (AXL) specifically interacts with the N-terminal domain of SARS-CoV-2 S. Using both a SARS-CoV-2 virus pseudotype and authentic SARS-CoV-2, we found that overexpression of AXL in HEK293T cells promotes SARS-CoV-2 entry as efficiently as overexpression of ACE2, while knocking out AXL significantly reduces SARS-CoV-2 infection in H1299 pulmonary cells and in human primary lung epithelial cells. Soluble human recombinant AXL blocks SARS-CoV-2 infection in cells expressing high levels of AXL. The AXL expression level is well correlated with SARS-CoV-2 S level in bronchoalveolar lavage fluid cells from COVID-19 patients. Taken together, our findings suggest that AXL is a novel candidate receptor for SARS-CoV-2 which may play an important role in promoting viral infection of the human respiratory system and indicate that it is a potential target for future clinical intervention strategies.
With the exponential growth of surveillance videos, quickly retrieving, browse and storing videos has become an urgent problem to be settled down. Video synopsis technology is an effective way to ...solve this problem. However, the existing video synopsis methods ignore the interaction among the moving objects in the original video at the step of optimization rearrangement, because it is difficult to accurately obtain the interactivity among the moving objects. To address this problem, a new video synopsis framework using constructed tube set is proposed. In this framework, we propose a spatio-temporal interaction algorithm to generate the object tube set by detecting and tracking the extracted object tube, which is partitioned by considering spatio-temporal proximity and the vector correlation of tube pairs in the whole video to preserve the interaction among the moving objects in the synopsis video. Furthermore, a frame sequence fusion algorithm based on spatio-temporal constraints is put forward to optimization rearrangement, which introduces frame sequence and frame vessel and determines the start time label of each tube set frame sequence by considering the position where the tube set frame sequence is inserted into the frame vessel. To evaluate the proffered approach, extensive experiments are conducted on testing videos from three public datasets. The experimental results demonstrate that the proposed method achieves superior performance than other state-of-the-art methods.
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