Magnetic luminescent hybrid nanoparticles Fe3O4/BaMoO4:Dy3+ (MLHNPs) were successfully synthesized by the co-precipitation method using ethylene glycol. The MLHNPs are functionalized with β-cyclodextrin (CD) using 3-aminopropyl triethoxysilane (APTES). The surface functionalization of nanoparticles and their conjugation have been confirmed via powder XRD, FTIR, HRTEM, and PL analyses. The feasibility of functionalized MLHNPs as nanocarriers for hydrophobic drugs (triazole derivatives) was verified by studying the uptake and release profile using a triazole derivative as a hydrophobic drug. In addition, the photoluminescence spectroscopy results confirmed the optical imaging capability of MLHNPs. The outcomes of loading and release disclose that this system is likely to be a suitable tool as a hydrophobic drug carrier.
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http://dx.doi.org/10.1039/d0dt02314k | DOI Listing |
Angew Chem Int Ed Engl
January 2025
Jilin University, College of Electronic Science and Engineering, State Key Laboratory of Integrated Optoelectronics, Qianjin Avenue 2699, Changchun, 130012, Changchun, CHINA.
Stable luminescent diradicals, characterized by the presence of two unpaired electrons, exhibit unique photophysical properties that are sensitive to external stimuli such as temperature, magnetic fields, and microwaves. This sensitivity allows the manipulation of their spin states and luminescence, setting them apart from traditional closed-shell luminescent molecules and luminescent monoradicals. As a result, luminescent diradicals are emerging as promising candidates for a variety of applications.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India.
Bacterial bots are potent vehicles in cancer theranostics where bacteria are used typically as cargos for drug delivery. However, living bacteria themselves may aid in their efficiency in killing the tissues. For example, living bacteria may be functionalized with magnetic and luminescent nanoparticles along with drugs in order to achieve the targeted delivery and release of payloads that would include the bacteria.
View Article and Find Full Text PDFAdv Mater
January 2025
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
Van der Waals (vdWs) materials are promising candidates for hetero-integration with silicon photonics toward miniaturization and integration. VdWs materials like molybdenum telluride and black phosphorus, despite being prominent, exhibit air sensitivity, and their room temperature emissions can be significantly broadened by tens of meV. Here, a self-encapsulation strategy is developed to scalably synthesize robust 2D vdWs ErOCl with sub-meV narrow emissions at the telecom C-band.
View Article and Find Full Text PDFChem Commun (Camb)
January 2025
Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Madhya Pradesh, 462066, India.
Adv Sci (Weinh)
January 2025
Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510000, China.
Immunochromatographic assays (ICAs) provide simple and rapid strategies for bacterial diagnosis but still suffer from the problems of low sensitivity and high dependency on paired antibodies. Herein, the broad-spectrum capture and detection capability of the antibody-free electropositive nanoprobe are clarified for bacteria for the first time and an ultrasensitive fluorescent ICA platform is constructed for the simultaneous diagnosis of multiple pathogens. A magnetic multilayer quantum dot nanocomposite with an amino-embedded SiO shell (MagMQD@Si) is designed to enrich bacteria from solutions effectively, offer high luminescence, and reduce background signals on test strips, thus greatly improving the sensitivity and stability of ICA technique for pathogen.
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