Discovery of a nontoxic fluorescent molecular probe to "light up" specific cellular organelles is extremely essential to understand dynamics of intracellular components. Here, we report a new nontoxic mitochondria-targeted linear bithiazole compound, containing trifluoroacetyl terminal groups, which emits intense blue fluorescence and stained mitochondria of various cells. Interestingly, the power of fluorescence is completely off when the bithiazole unit is stapled by a carbonyl bridge.
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http://dx.doi.org/10.1021/acsomega.8b03331 | DOI Listing |
Luminescence
January 2025
Department of Chemistry, College of Science, Jouf University, Sakaka, Aljouf, Saudi Arabia.
In the present study, a norfloxacin (NFX) fluorescent probe was tailored for the spectrofluorometric measurement of cefepime (CFP). The proposed approach measured the quenching effect of CFP on the fluorescence intensity of NFX in acetate buffer solution. The obtained results show that CFP strongly quenches the fluorescence of NFX in a static mechanism.
View Article and Find Full Text PDFChemistry
January 2025
University of Hyderabad School of Chemistry, School of Chemistry, School of Chemistry, University of Hyderabad, 500046, Hyderabad, INDIA.
The amorphous/crystalline (A/C) assembly in molecular solids has a direct bearing on their attributes and applications, including mechanical, pharmaceutical, electronic and photophysical. A systematic analysis of the molecular features and interactions that determine the predilection towards the A, C or bi-stable A-C states is critical. This fundamental problem is addressed through an exhaustive investigation of a large family of alkoxyalkyl diaminodicyanoquinodimethanes (ROR'-DADQs); enhancement of their fluorescence from the solution, to the A, to the C state serves as an excellent signature of the phase preference and temporal stability.
View Article and Find Full Text PDFAnticancer Agents Med Chem
January 2025
Laboratory Animal Center, Affiliated Hospital of Chengde Medical University, Chengde, Hebei, 067000, P.R. China.
Objective: The objective of this study is to examine the impact of KW-2478 combined with DDP on colorectal cancer cells both in vitro and in vivo and to elucidate the molecular mechanism of KW-2478 in colorectal cancer.
Methods: qRT-PCR and Western blot were employed to assess HSP90 mRNA and protein expression in normal intestinal epithelial and colorectal cancer cells. DLD-1 and HCT116 were selected for the experiment.
Chem Asian J
January 2025
IISc: Indian Institute of Science, Inorganic and Physical Chemistry, Indian Institute of Science Bangalore, 560012, Bangalore, INDIA.
In this study, we report the design and development of a stable fluorescent probe that is selectively localized in the cytosol of Hela cells. We designed two probes, 1 and 2, with D-π-A (carbazole (Cbz)-vinyl-naphthalimide (NPI)) and A-π-D-π-A (NPI-vinyl-Cbz-vinyl-NPI) architecture, respectively. Probes 1 and 2 exhibit broad photoluminescence (PL) spectra ranging from green (550 nm) to far-red (800 nm) in solutions and aggregated states.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Shanghai Jiao Tong University, Chemistry, 800 Dongchuan Road, Minhang, 200240, Shanghai, CHINA.
Hydrogen sulfide (H2S) plays crucial inflammatory modulating roles, representing a promising candidate for anti-inflammatory therapies. However, current H2S delivery approaches lack sufficient specificity against inflammatory response. Herein, regarding the overexpressed aminopeptidase N (APN) at the inflammation sites, an APN-activated self-immolative carbonyl sulfide (COS)/H2S donor (AlaCOS) was developed for inflammatory response-specific H2S delivery.
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