23 research outputs found

    Media 1: Principle and characteristics of 3D display based on random source constructive interference

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    Originally published in Optics Express on 14 July 2014 (oe-22-14-16863

    Chemiluminescent Labels Released from Long Spacer Arm-Functionalized Magnetic Particles: A Novel Strategy for Ultrasensitive and Highly Selective Detection of Pathogen Infections

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    Previously, the unique advantages provided by chemiluminescence (CL) and magnetic particles (MPs) have resulted in the development of many useful nucleic acid detection methods. CL is highly sensitive, but when applied to MPs, its intensity is limited by the inner filter-like effect arising from excess dark MPs. Herein, we describe a modified strategy whereby CL labels are released from MPs to eliminate this negative effect. This approach relies on (1) the magnetic capture of target molecules on long spacer arm-functionalized magnetic particles (LSA-MPs), (2) the conjugation of streptavidin-alkaline phosphatase (SA-AP) to biotinylated amplicons of target pathogens, (3) the release of CL labels (specifically, AP tags), and (4) the detection of the released labels. CL labels were released from LSA-MPs through LSA ultrasonication or DNA enzymolysis, which proved to be the superior method. In contrast to conventional MPs, LSA-MPs exhibited significantly improved CL detection, because of the introduction of LSA, which was made of water-soluble carboxymethylated β-1,3-glucan. Detection of hepatitis B virus with this technique revealed a low detection limit of 50 fM, high selectivity, and excellent reproducibility. Thus, this approach may hold great potential for early stage clinical diagnosis of infectious diseases

    Catalytic Enantioselective Nucleophilic α‑Chlorination of Ketones with NaCl

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    Catalytic enantioselective α-chlorination of ketones is a highly desirable process. Different from the conventional approaches that employ corrosive electrophilic chlorination reagents, the process disclosed here employs nucleophilic chloride, aqueous NaCl solution, and even seawater, as green inexpensive chlorine sources. This mechanistically distinct and electronically opposite approach provides facile access to diverse highly enantioenriched acyclic α-chloro ketones that are less straightforward by conventional approaches. With a chiral thiourea catalyst, a range of racemic α-keto sulfonium salts underwent enantioconvergent carbon–chlorine bond formation with high efficiency and excellent enantioselectivity under mild conditions. The sulfonium motif plays a crucial triple role by permitting smooth dynamic kinetic resolution to take place via a chiral anion binding mechanism in a well-designed phase-transfer system. This protocol represents a new general platform for the asymmetric nucleophilic α-functionalization of carbonyl compounds

    Additional file 2 of DNMT3A mutation promotes leukemia development through NAM-NAD metabolic reprogramming

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    Additional file 2: Table S2. The mRNA expression level of NAMPT in AML obtained from the Oncomine database

    Selection of HBsAg-Specific DNA Aptamers Based on Carboxylated Magnetic Nanoparticles and Their Application in the Rapid and Simple Detection of Hepatitis B Virus Infection

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    Aptamers are short single-stranded DNA or RNA oligonucleotides and can be selected from synthetic combinatorial libraries in vitro. They have a high binding affinity and specificity for their targets. Agarose gels, nitrocellulose membranes, and adsorptive microplates are often used as carriers to immobilize targets in the SELEX (systematic evolution of ligands by exponential enrichment) process, but the subsequent separation step is tedious and time-consuming. Therefore, we used magnetic nanoparticles (MNPs) as carriers to immobilize the target, hepatitis B surface antigen (HBsAg), which is convenient for fast magnetic separation. In this study, we first selected DNA aptamers against HBsAg by immobilizing HBsAg on the surface of carboxylated MNPs. The ssDNA library of each selection round was prepared by asymmetric PCR amplification for the next selection round. To obtain aptamer sequences, the final selected products were purified by gel electrophoresis, then cloned, and sequenced. DNA aptamers that specifically bind to HBsAg were successfully obtained after 13 selection rounds. The selected aptamers were used to construct a chemiluminescence aptasensor based on magnetic separation and immunoassay to detect HBsAg from pure protein or actual serum samples. There was a linear relationship between HBsAg concentration and chemiluminescent intensity in the range of 1–200 ng/mL. The aptasensor worked well even in the presence of interfering substances and was highly specific in the detection of HBsAg in serum samples, with a detection limit 0.1 ng/mL lower than the 0.5 ng/mL limit of an ELISA in use at the hospital. This aptasensor can contribute to better detection of hepatitis B virus infection

    Image_4_The efficacy of cognitive behavioral therapy for cancer: A scientometric analysis.TIF

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    Cognitive behavioral therapy (CBT) is one of the most recognized psychological interventions to improve the overall quality of life of cancer survivors. To analyze current research trends in the field of the link between CBT and cancer and to provide potential future research directions, we conducted the scientometric analysis. The study was conducted on all documents in this field from 2012 to 2022 retrieved from Web of Science. Then Biblioshiny, VOSviewer software, and CiteSpace software were used for getting the information of article postings and citations, countries, institutions, journals, authors, and keywords. The number of documents about the link between CBT and cancer from 2012 to 19 July 2022, was 619, with 476 of articles and 143 of reviews. The number of annual publications has been fluctuating, with the highest number of publications in 2020. The country with the maximum number of publications and citations was the US. The University of Houston was the organization with the highest quantity of publications and total link strength (TLS). Psycho-Oncology was the most active journal in the field and has the highest h-index. Zvolensky MJ was the author with the highest quantity of publications. The most cited keywords were “Quality-of-life,” “Cognitive-behavioral therapy,” “Depression,” “Cognitive therapy” and “Breast-cancer.” And as evidenced by the keyword citations, the focus of this research area has gradually shifted to the mental health of patients and the underlying pathogenesis. The impact of CBT in cancer treatment is now well established and has gradually evolved toward symptom-specific treatment. However, the relationship between CBT and cancer has not been further developed. Future research is needed to be further developed in the identification of a generic formula for CBT in cancer and the exploration of mechanisms of CBT and cancer.</p

    Image_1_The efficacy of cognitive behavioral therapy for cancer: A scientometric analysis.TIF

    No full text
    Cognitive behavioral therapy (CBT) is one of the most recognized psychological interventions to improve the overall quality of life of cancer survivors. To analyze current research trends in the field of the link between CBT and cancer and to provide potential future research directions, we conducted the scientometric analysis. The study was conducted on all documents in this field from 2012 to 2022 retrieved from Web of Science. Then Biblioshiny, VOSviewer software, and CiteSpace software were used for getting the information of article postings and citations, countries, institutions, journals, authors, and keywords. The number of documents about the link between CBT and cancer from 2012 to 19 July 2022, was 619, with 476 of articles and 143 of reviews. The number of annual publications has been fluctuating, with the highest number of publications in 2020. The country with the maximum number of publications and citations was the US. The University of Houston was the organization with the highest quantity of publications and total link strength (TLS). Psycho-Oncology was the most active journal in the field and has the highest h-index. Zvolensky MJ was the author with the highest quantity of publications. The most cited keywords were “Quality-of-life,” “Cognitive-behavioral therapy,” “Depression,” “Cognitive therapy” and “Breast-cancer.” And as evidenced by the keyword citations, the focus of this research area has gradually shifted to the mental health of patients and the underlying pathogenesis. The impact of CBT in cancer treatment is now well established and has gradually evolved toward symptom-specific treatment. However, the relationship between CBT and cancer has not been further developed. Future research is needed to be further developed in the identification of a generic formula for CBT in cancer and the exploration of mechanisms of CBT and cancer.</p

    Table_1_The efficacy of cognitive behavioral therapy for cancer: A scientometric analysis.docx

    No full text
    Cognitive behavioral therapy (CBT) is one of the most recognized psychological interventions to improve the overall quality of life of cancer survivors. To analyze current research trends in the field of the link between CBT and cancer and to provide potential future research directions, we conducted the scientometric analysis. The study was conducted on all documents in this field from 2012 to 2022 retrieved from Web of Science. Then Biblioshiny, VOSviewer software, and CiteSpace software were used for getting the information of article postings and citations, countries, institutions, journals, authors, and keywords. The number of documents about the link between CBT and cancer from 2012 to 19 July 2022, was 619, with 476 of articles and 143 of reviews. The number of annual publications has been fluctuating, with the highest number of publications in 2020. The country with the maximum number of publications and citations was the US. The University of Houston was the organization with the highest quantity of publications and total link strength (TLS). Psycho-Oncology was the most active journal in the field and has the highest h-index. Zvolensky MJ was the author with the highest quantity of publications. The most cited keywords were “Quality-of-life,” “Cognitive-behavioral therapy,” “Depression,” “Cognitive therapy” and “Breast-cancer.” And as evidenced by the keyword citations, the focus of this research area has gradually shifted to the mental health of patients and the underlying pathogenesis. The impact of CBT in cancer treatment is now well established and has gradually evolved toward symptom-specific treatment. However, the relationship between CBT and cancer has not been further developed. Future research is needed to be further developed in the identification of a generic formula for CBT in cancer and the exploration of mechanisms of CBT and cancer.</p

    Image_3_The efficacy of cognitive behavioral therapy for cancer: A scientometric analysis.TIF

    No full text
    Cognitive behavioral therapy (CBT) is one of the most recognized psychological interventions to improve the overall quality of life of cancer survivors. To analyze current research trends in the field of the link between CBT and cancer and to provide potential future research directions, we conducted the scientometric analysis. The study was conducted on all documents in this field from 2012 to 2022 retrieved from Web of Science. Then Biblioshiny, VOSviewer software, and CiteSpace software were used for getting the information of article postings and citations, countries, institutions, journals, authors, and keywords. The number of documents about the link between CBT and cancer from 2012 to 19 July 2022, was 619, with 476 of articles and 143 of reviews. The number of annual publications has been fluctuating, with the highest number of publications in 2020. The country with the maximum number of publications and citations was the US. The University of Houston was the organization with the highest quantity of publications and total link strength (TLS). Psycho-Oncology was the most active journal in the field and has the highest h-index. Zvolensky MJ was the author with the highest quantity of publications. The most cited keywords were “Quality-of-life,” “Cognitive-behavioral therapy,” “Depression,” “Cognitive therapy” and “Breast-cancer.” And as evidenced by the keyword citations, the focus of this research area has gradually shifted to the mental health of patients and the underlying pathogenesis. The impact of CBT in cancer treatment is now well established and has gradually evolved toward symptom-specific treatment. However, the relationship between CBT and cancer has not been further developed. Future research is needed to be further developed in the identification of a generic formula for CBT in cancer and the exploration of mechanisms of CBT and cancer.</p
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