Decoding cellular processes requires visualization of the spatial distribution and dynamic interactions of biomolecules. It is therefore not surprising that innovations in imaging technologies have facilitated advances in biomedical research. The advent of super-resolution imaging technologies has empowered biomedical researchers with the ability to answer long-standing questions about cellular processes at an entirely new level. Fluorescent probes greatly enhance the specificity and resolution of super-resolution imaging experiments. Here, we introduce key super-resolution imaging technologies, with a brief discussion on single-molecule localization microscopy (SMLM). We evaluate the chemistry and photochemical mechanisms of fluorescent probes employed in SMLM. This Review provides guidance on the identification and adoption of fluorescent probes in single molecule localization microscopy to inspire the design of next-generation fluorescent probes amenable to single-molecule imaging.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10100239 | PMC |
http://dx.doi.org/10.1002/anie.202204745 | DOI Listing |
RSC Adv
January 2025
Laboratory of Bioorganic & Natural Products Chemistry, Kobe Pharmaceutical University 4-19-1, Motoyamakita, Higashinada Kobe Hyogo 658-8558 Japan
Fluorogenic probes containing the β-ketoester structure were developed for selective hydrazine detection. The probe equipped with a cyclopropane moiety, having reduced steric hindrance, showed a higher reaction rate than its dimethyl counterpart. In live cell imaging, the probe detects intracellular hydrazine with minimal cytotoxicity.
View Article and Find Full Text PDFACS Appl Bio Mater
January 2025
Department of Chemistry, Michigan Technological University, Houghton, Michigan 49931, United States.
This paper presents the development of near-infrared (NIR) fluorescent probes, and , engineered from hemicyanine dyes with 1,8-naphthalic and rhodamine derivatives for optimized photophysical properties and precise mitochondrial targeting. Probes and exhibit absorption peaks at 737 nm and low fluorescence in phosphate-buffered saline (PBS) buffer. Notably, their fluorescence intensities, peaking at 684 () and 702 nm (), increase significantly with viscosity, as demonstrated through glycerol-to-PBS ratio experiments.
View Article and Find Full Text PDFAdv Healthc Mater
January 2025
School of Biomedical Engineering, McMaster University, 1280 Main Street West Hamilton, Hamilton, Ontario, L8S 4L7, Canada.
Inspired by the emerging potential of photoluminescent hydrogels, this work unlocks new avenues for advanced biosensing, bioimaging, and drug delivery applications. Carbon quantum dots (CDs) are deemed particularly promising among various optical dyes, for enhancing polymeric networks with superior physical and chemical properties. This study presents the synthesis of CDs derived from Prunella vulgaris, a natural plant resource, through a single-step hydrothermal process, followed by their uniform integration into hydrogel matrices via an in situ free radical graft polymerization.
View Article and Find Full Text PDFJ Oleo Sci
January 2025
Faculty of Science and Technology, Tokyo University of Science.
Bile salts, present in the gastrointestinal tract as biosurfactants, play a crucial role in emulsifying and solubilizing fat-soluble nutrients and drugs, thereby facilitating their absorption. However, the cellular permeation of bile acid-mixed micelles solubilized with lipophilic substances remains inadequately explored. To comprehend the cell permeation behavior of bile salts and their mixed micelles, giant unilamellar vesicles (GUVs) were employed as a cell-mimetic system, prepared with dioleylphosphatidylcholine (DOPC).
View Article and Find Full Text PDFColloids Surf B Biointerfaces
December 2024
Key Laboratory of Marine Drug, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts, Qingdao Marine Science and Technology Center, Qingdao 266237, China. Electronic address:
In situ cell imaging plays a crucial role in studying physiological and pathological processes of cells. Proximity ligation assay (PLA) and rolling circle amplification (RCA) are commonly used to study the abundance and interactions of biological macromolecules. The most frequently applied strategy to visualize the RCA products is with single-fluorophore probe, however, cellular auto-fluorescence and unbound fluorescent probes could interfere with RCA products, leading to non-specific signals.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!