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Objective: The purpose of this study was to compare the diagnostic value of nanocarbon suspensions and methylene blue injections in sentinel lymph node biopsies of patients with breast cancer based on the dye method.
Methods: A systematic search of the PubMed, Embase, Cochrane Library (Central) and Web of Science (SCI Expanded) databases was performed to determine the diagnostic value of carbon nanoparticles in Chinese databases (China National Knowledge Infrastructure (CNKI), VIP, Wanfang, Chinese Biomedical Literature Database (CBM)) for identifying methylene blue in sentinel lymph node biopsies of patients with breast cancer. The QUADAS2 quality evaluation tool of Review Manager 5.4 was used to evaluate the quality of the included studies. Meta-Disc 1.4 software was used to calculate the extracted valid data and perform a heterogeneity test. STATA 14.0 software was selected to conduct a sensitivity analysis, and Deek's publication bias test was used for the included studies.
Results: In 17 articles, the binding sensitivity of nanocarbons was 0.93 (0.90-0.95), the binding specificity was 0.98 (0.97-0.99), the binding sensitivity of methylene blue was 0.89 (0.85-0.92), and the binding specificity was 0.94 (0.92-0.95). The AUC value of the nanocarbon SROC was 0.9827 (SE = 0.0062), and the AUC value of methylene blue was 0.9495 (SE = 0.0139).
Conclusion: Nanocarbon methylene blue is a more satisfactory dye tracer for sentinel lymph node biopsy in breast cancer patients and should be considered a first-line diagnostic agent.
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http://dx.doi.org/10.7717/peerj.19546 | DOI Listing |
J Fluoresc
September 2025
Chemical Engineering Department, College of Engineering, University of Ha'il, P.O. Box 2440, 81441, Ha'il, Saudi Arabia.
This review delivers a focused and critical evaluation of recent progress in the green synthesis of carbon quantum dots (CQDs), with particular attention to state-of-the-art approaches utilizing renewable biomass as precursors. The main objective is to systematically examine innovative, environmentally friendly methods and clarify their direct influence on the core properties and photocatalytic performance of CQDs. The novelty of this review stems from its comprehensive comparison of green synthetic pathways, revealing how specific processes determine key structural, optical, and electronic attributes of the resulting CQDs.
View Article and Find Full Text PDFClin Toxicol (Phila)
September 2025
Division of Medical Toxicology, Ronald O. Perelman Department of Emergency Medicine, NYU Grossman School of Medicine, New York, NY, USA.
RSC Adv
September 2025
Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University Chennai Tamil Nadu 602105 India.
A free radical polymerization approach was applied to synthesize different carboxymethyl cellulose-grafted poly(acrylamide) hydrogels (Hyd) composited with biochar, magnetic biochar, and magnetic biochar decorated with ZIF-67 to decontaminate methylene blue (MB) from water media. Biochar was obtained from walnut shells (WS) by a pyrolysis method, and magnetic biochar (WS/CoFeO) and biochar-decorated ZIF-67 (WS/CoFeO/ZIF-67) were prepared by chemical co-precipitation and hydrothermal methods, respectively. An increase in the amount of these particles by up to 10 wt% enhanced the removal performance.
View Article and Find Full Text PDFCureus
August 2025
Acute Medicine, Weston General Hospital, University Hospitals Bristol and Weston, Weston-super-Mare, GBR.
Methemoglobinemia is an uncommon yet potentially life-threatening condition that results from the oxidation of iron from the ferrous (Fe²⁺) to the ferric (Fe³⁺) state, rendering hemoglobin unable to effectively transport oxygen. This translates into a state of functional hypoxia despite adequate arterial oxygen tension. Among the various causes of acquired methemoglobinemia, recreational inhalation of alkyl nitrites, widely known as "poppers," is a notable but underrecognized trigger.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. Electronic address:
Lignin, a negatively charged, three-dimensional natural biopolymer, serves as an ideal support for metal catalysts due to its abundant functional groups and tunable chemical properties, which enable strong metal coordination and effective immobilization. Herein, we demonstrate a lignin-mediated Co/O co-doped AgS, symbolized as L-AgCoOS, bimetal oxysulfide catalyst via a facile hydrolysis method for the efficient reduction of toxic phenolic compounds (4-nitrophenol, 4-NP), organic dyes (methyl orange (MO), methylene blue (MB), rhodamine B (RhB), and heavy metal ions Cr(VI)) under dark conditions. Lignin, used to immobilize catalysts, also contributes to increasing the number of active catalytic sites and enhancing catalytic activity.
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