Similar Publications

Elucidating Manganese Single-Atom Doping: Strategies for Fluorescence Enhancement in Water-Soluble Red-Emitting Carbon Dots and Applications for FL/MR Dual Mode Imaging.

Adv Sci (Weinh)

January 2025

Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan, 250061, China.

The absence of the enhancement of fluorescence in carbon dots (CDs) through doping with transition metal atoms (TMAs) hinders the advancement of multi-modal bio-imaging CDs with high photoluminescence quantum yield (PLQY). Herein, Mn-atomically-doped R-CDs (R-Mn-CDs) with a high PLQY of 41.3% in water is presented, enabling efficient in vivo dual-mode fluorescence/magnetic resonance (MR) imaging.

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Background: Histological grade is an acknowledged prognostic factor for breast cancer, essential for determining clinical treatment strategies and prognosis assessment. Our study aims to establish intra- and peritumoral radiomics models using T2WI and DWI MR sequences for predicting the histological grade of breast cancer.

Methods: 700 breast cancer cases who had MRI scans before surgery were included.

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Triggered by the vulnerability to atherosclerotic plaques, cardiovascular diseases (CVDs) have become a main reason for high mortality worldwide. Thus, there is an urgent need to develop functional molecular imaging modalities to improve the detection rate of vulnerable plaques. In this study, polyethyleneimine (PEI) was coated on the surface of mesoporous silica nanoprobes (MSN) loaded with GdO (MSN@GdO), followed by coupling the fluorescent dye carboxylated heptamethine cyanine (IR808), and then the dextran sulfate (DS) was modified on the surface of MSN@GdO@IR808 by electrostatic adsorption, to construct a targeted and pH-responsive magnetic resonance (MR)/near-infrared fluorescence imaging (NIRF) dual-modal nanoprobe (MSN@GdO@IR808@DS nanoparticles).

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Reactive Oxygen and Nitrogen Species - "Nanosweeper" for Rheumatoid Arthritis Theranostics by Macrophage Reprogramming.

ACS Appl Mater Interfaces

December 2024

National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.

Excessive reactive oxygen and nitrogen species (RONS) accumulation in joints are significant variables that affect the course of rheumatoid arthritis (RA). Scavenging of RONS to remodel macrophage homeostasis is a potentially powerful treatment for RA. Here, a visualized "nanosweeper" by functionalizing ultrasmall Gd/FeO nanoparticles with thiol-polyethylene glycol-phosphoric acid and 2-(3-(2-aminophenyl)ureido) ethyl methacrylate hydrochloride (APUEMA), namely GIA NPs, can simultaneously scavenge both nitric oxide (NO) and reactive oxygen species (ROS), as well as enhance magnetic resonance imaging (MRI) for the diagnosis and therapy of RA.

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Functionalized Iron Oxide Nanoparticles for Both Dual-Modal Imaging and Erythropoiesis.

ACS Appl Mater Interfaces

December 2024

Guangdong Provincial Key Laboratory of Advanced Biomaterials, Shenzhen Key Laboratory of Smart Healthcare Engineering, Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Road, Nanshan District, Shenzhen, Guangdong 518055, P. R. China.

Cancer-related anemia (CRA), a complication of cancer, is considered the primary cause of high mortality for cancer patients. Safe and effective theranostics are desirable for realizing the high diagnostic accuracy of tumors and ameliorating CRA in the clinic. However, the available theranostics do not support dual-modal imaging and the amelioration of CRA at the same time.

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