Due to the lack of a proper imaging approach, a veracious pH map of normal and abnormal cell is still rare. In this work, we presented a rhodamine-salicylaldehyde combination (Rh-SA2) as a novel pH probe, which has dual sensitive units for both acidic and basic environment. This dual sensitive probe acts like a chameleon in living cells and offers the doubling guarantees for endocellular pH mapping. Moreover, a quantitative measurement of cellular pH changes was allowed and the endocellular pH values under drug-associated stimuli were also investigated.
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http://dx.doi.org/10.1038/srep15540 | DOI Listing |
J Exp Clin Cancer Res
January 2025
Hepatology Laboratory, Solid Tumors Program, CIMA, CCUN, University of Navarra, Pamplona, Spain.
Background: Pancreatic ductal adenocarcinoma (PDAC) is a highly aggressive cancer with limited treatment options and a poor prognosis. The critical role of epigenetic alterations such as changes in DNA methylation, histones modifications, and chromatin remodeling, in pancreatic tumors progression is becoming increasingly recognized. Moreover, in PDAC these aberrant epigenetic mechanisms can also limit therapy efficacy.
View Article and Find Full Text PDFTalanta
January 2025
State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, PR China. Electronic address:
Formaldehyde (HCHO) is a harmful volatile organic pollutant, which is commonly found in interior decoration and furniture products. Therefore, it is necessary to develop a gas sensor that can quickly and accurately detect formaldehyde for human health and environmental protection. In order to achieve this goal, in this work, SnS/SnO heterostructure was synthesized by in-situ sulfurization process on the basis of SnO nanospheres, and its formaldehyde sensing performance was studied.
View Article and Find Full Text PDFBiosens Bioelectron
January 2025
Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China; Food Safety Research Institute, HuBei University, Wuhan, China. Electronic address:
There is a phenomenon of combined contamination of fungal toxins, of which aflatoxin B (AFB) is the most toxic, and deoxynivalenol (DON) contamination is common. The use of antigens for double or multiple testing of mycotoxins is easy to cause environmental pollution, and surrogate antigens have become necessary. The small molecule and susceptibility to genetic modification of nanobodies can be used to develop alternative antigens for mycotoxins.
View Article and Find Full Text PDFBiosens Bioelectron
December 2024
Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China. Electronic address:
Multi-signal-based self-calibrating biosensors have become a research focus due to their superior accuracy and sensitivity in recent years. Herein, the potential-resolved differential ECL immunoassay based on dual co-reactants regulation was developed. Meso-tetra(4-carboxyphenyl)porphyrin (TCPP) functionalized zirconium dioxide (ZrO) composites (TCPP-ZrO) was first synthesized using TCPP as the luminophore and ZrO as the enhancer and stabilizer.
View Article and Find Full Text PDFAnal Chem
January 2025
Key Laboratory of Medicinal Chemistry for Natural Resource of Yunnan, University Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China.
Ethylenediamine (EDA), as an important chemical raw material and fine chemical intermediate, has been widely applied in various industries. Real-time monitoring of EDA is highly desirable in daily life due to its potential threat to human health. Herein, we report a molecular probe named 4,4'-(9-carbazole-3,6-diyl)bis(1-(naphthalen-2-ylmethyl)pyridin-1-ium) iodide (p-N-DPC·I) with ratiometric luminescent and colorimetric dual-mode responses toward EDA, endowing a highly sensitive and selective detection method for its real-time monitoring.
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