Persistent luminescence nanoparticles (PLNPs) emitting in the NIR window (700-1700 nm) have shown great promise in the field of fluorescence imaging due to their unique properties, including the absence of in situ excitation and low optical scattering in tissues. However, they are still facing some challenges, such as irregular shape, wide size distribution and poor persistent luminescence performance. Here, we report a facile mesoporous template method for synthesizing mSiO@ZnCaGaO:Cr,Yb (mSiO@ZCGO) persistent luminescent nanoparticles, which show a regular morphology and a size of about 69 nm. In addition, these nanocrystals exhibit persistent luminescence in multi-NIR windows, the first infrared window (∼696 nm of Cr emission) and second infrared window (∼1000 nm of Yb emission). Under illumination of a 254 nm UV lamp for 10 min, the persistent time of Cr ions and Yb ions lasted more than 120 min and 10 min, respectively. In particular, the NIR persistent emission of mSiO@ZCGO could be stimulated by soft X-ray, which is beneficial to long-term imaging in deep tissues. The optical penetration length of Yb ions persistent luminescence was evaluated to be 2.8 mm. These results demonstrate the great promise of mSiO@ZCGO for deep-tissue bio-imaging.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d0tb02552f | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
In Situ Slow-Release Hydrogen Sulfide Therapeutics for Advanced Disease Treatments.
Small
January 2025
Department of Neurosurgery, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China.
Hydrogen sulfide (HS) gas therapygarners significant attention for its potential to improve outcomes in various disease treatments. The quantitative control of HS release is crucial for effective the rapeutic interventions; however, traditional researchon HS therapy frequently utilizes static release models and neglects the dynamic nature of blood flow. In this study, we propose a novel slow-release in-situ HS release model that leverages the dynamic hydrolysis of HS donorswithin the bloodstream.
View Article and Find Full Text PDFQuaternized and boronic acid dual-functional CoAg nanozymes for label-free, stable, sensitive, and rapid quantitation detection of the bacterial total concentration.
Anal Chim Acta
February 2025
School of Pharmacy, China Pharmaceutical University, Nanjing, China. Electronic address:
Background: Foodborne pathogenic bacteria lead to a significant increase in illnesses and fatalities annually. In the early stage of a pathogenic bacterial infection, the concentration of bacteria in food is lower than the detection limit of most technology which enhances the difficulty in diagnosis. It is a serious challenge for researchers to develop a rapid, sensitive, accurate, and stable pathogenic bacterial determination method without costly equipment and highly skilled operators.
View Article and Find Full Text PDFActivatable red/near-infrared aqueous organic phosphorescence probes for improved time-resolved bioimaging.
Natl Sci Rev
February 2025
Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China.
Organic red/near-infrared (NIR) room-temperature phosphorescence (RTP) holds significant potential for autofluorescence-free bioimaging and biosensing due to its prolonged persistent luminescence and exceptional penetrability. However, achieving activatable red/NIR organic RTP probes with tunable emission in aqueous solution remains a formidable challenge. Here we report on aqueous organic RTP probes with red/NIR phosphorescence intensity and lifetime amplification.
View Article and Find Full Text PDFLong Persistent Luminescence in Cu-Doped SrGaGeO for Information Storage and Encryption.
Inorg Chem
January 2025
Center of Advanced Optoelectronic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.
Information storage and encryption are the key technologies for modern information transmission. However, most optical information storage technologies based on long persistent luminescent (PersL) only have one fixed response mode, which is easy to imitate, limiting their security in advanced information storage and encryption applications. Besides, the cost of rare earth-doped PersL materials restricts their wide application.
View Article and Find Full Text PDFPhotochromic Sodalites: From Natural Minerals to Advanced Applied Materials.
Acc Chem Res
January 2025
Mineralogical Society of Antwerp, Boterlaarbaan 225, 2100 Deurne, Belgium.
ConspectusWhile photochromic natural sodalites, an aluminosilicate mineral, were originally considered as curiosities, articles published in the past ten years have radically changed this perspective. It has been proven that their artificial synthesis was easy and allowed compositional tuning. Combined with simulations, it has been shown that a wide range of photochromic properties were achievable for synthetic sodalites (color, activation energy, reversibility, etc.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!