98%
921
2 minutes
20
Stimuli-responsive upconversion nanoparticle (UCNP)-poly--isopropylacrylamide (pNIPAM)/DNA core-shell microgels with tunable sizes and programmable functions have been prepared. Thanks to the near-infrared (NIR)-responsive UCNP cores and thermosensitive polymeric shells, functional DNA-incorporated microgels with high DNA activity and loading efficiency are obtained, and the activity of the loaded DNA structures can be smartly regulated by NIR illumination and temperature simultaneously.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1039/d4sm00258j | DOI Listing |
Nat Commun
July 2025
Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University; NHC Key Laboratory of Myopia and Related Eye Diseases, Shanghai, China.
Photothermal therapy (PTT), a vanguard strategy in cancer/ocular neovascularization treatment, has attracted considerable attention owing to its precision, controllability, high efficacy, and minimal side effects. Nevertheless, its inherent limitations necessitate innovative solutions. One promising strategy is to develop reagents with enhanced photothermal conversion efficiency under long-wavelength laser irradiation.
View Article and Find Full Text PDFACS Appl Mater Interfaces
June 2025
Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
Photon upconversion via triplet-triplet annihilation (TTA-UC) is a promising technology for environmentally responsive sensing, characterized by delayed fluorescence and anti-Stokes shifts. However, it faces quantification challenges due to intensity-based detection limitations, such as fluorophore concentration, excitation source instability, and environmental scattering. To address these issues, we report a time-resolved fluorescence strategy that exploits the intrinsic delayed fluorescence lifetime of TTA-UC systems as a robust, concentration-independent parameter for the quantitative spatiotemporal mapping of environmental stimuli.
View Article and Find Full Text PDFACS Appl Bio Mater
April 2025
Institute of Chemistry, São Paulo State University, Araraquara, São Paulo 14800-060, Brazil.
Nanocarrier systems with multifunctional capabilities hold great potential for targeted cancer therapy, particularly for breast cancer treatment. Metal-organic frameworks (MOFs) are notable for their high porosity and, in some cases, biocompatibility, with ZIF-8 being particularly advantageous due to its pH-sensitive degradability, enabling selective drug release in tumor environments. Additionally, lanthanide-doped upconversion nanoparticles (UCNPs) offer unique optical properties that enhance both imaging and therapeutic applications.
View Article and Find Full Text PDFACS Appl Mater Interfaces
August 2024
Department of Chemical Biology and Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.
Adv Colloid Interface Sci
August 2024
School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia; The Biophotonics and Mechano-Bioengineering Lab, The University of Sydney, Sydney, New South Wales 2006, Australia. Electronic address:
Stimuli-responsive polymeric micelles have emerged as a revolutionary approach for enhancing the in vivo stability, biocompatibility, and targeted delivery of functional nanoparticles (FNPs) in biomedicine. This article comprehensively reviews the preparation methods of these polymer micelles, detailing the innovative strategies employed to introduce stimulus responsiveness and surface modifications essential for precise targeting. We delve into the breakthroughs in utilizing these micelles to selectively deliver various FNPs including magnetic nanoparticles, upconversion nanoparticles, gold nanoparticles, and quantum dots, highlighting their transformative impact in the biomedical realm.
View Article and Find Full Text PDF