A new azobenzene-based chromophore was synthesized to create one-dimensional (1D) nanofibers with aggregation-induced emission enhancement characteristics. The enhanced red fluorescence of the fibrous structures can be switched off via mechanical pressure, friction, or heat by pressing, rubbing, or annealing.
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http://dx.doi.org/10.1039/c4cc06938b | DOI Listing |
Heliyon
December 2024
Department of Chemical Engineering, National Cheng Kung University, Tainan, 702, Taiwan.
Increasing attention has been paid to the detection of explosives due to the occurrence of terrorist attacks around the world. Here, we used free radical polymerization to develop two different types of fluorescent copolymers for use in detecting picric acid. One exhibits aggregation-caused quenching (ACQ) and is called PNNS [poly (-isopropyl acrylamide---hydroxymethyl acrylamide --styrene-pyrene), poly (NIPAAm--NMA--St-Py)].
View Article and Find Full Text PDFBiosens Bioelectron
January 2025
Frontiers Science Center for New Organic Matter, Engineering & Smart Sensing Interdisciplinary Science Center, MOE Key Laboratory of Bioactive Materials, and College of Life Sciences, Nankai University, Tianjin, 300350, China. Electronic address:
Image-guided surgery is crucial for achieving complete tumor resection, reducing postoperative recurrence and improving patient survival. However, current clinical near-infrared fluorescent probes, such as indocyanine green (ICG), face two main limitations: 1) lack of active tumor targeting, and 2) short retention time in tumors, which restricts real-time imaging during surgery. To address these issues, we developed a near-infrared fluorescent probe capable of in situ nanofiber formation within tumor lesions.
View Article and Find Full Text PDFAdv Sci (Weinh)
September 2024
School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, Clinical Translational Research Center of Aggregation-Induced Emission, School of Medicine, The Second Affiliated Hospital, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Guangdong, 518172, P. R. China.
Stimuli-responsive materials exhibiting exceptional room temperature phosphorescence (RTP) hold promise for emerging technologies. However, constructing such systems in a sustainable, scalable, and processable manner remains challenging. This work reports a bio-inspired strategy to develop RTP nanofiber materials using bacterial cellulose (BC) via bio-fermentation.
View Article and Find Full Text PDFAdv Mater
July 2024
National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China.
As one of the most widely used medical devices, sutures face challenges related to surgical site infections (SSIs) and lack of subcutaneous traceability. In the present study, a facile and effective approach using peptide-AIE nanofibers (NFs-K18) to create fluorescent-traceable antimicrobial sutures, which have been applied to four commercially available sutures is developed. The functionalized sutures of PGAS-NFs-K18 and PGLAS-NFs-K18 exhibit fluorescence with excellent penetration from 4 mm chicken breasts.
View Article and Find Full Text PDFJ Control Release
June 2024
College of Marine Life Science, Ocean University of China, Qingdao 266003, PR China. Electronic address:
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