Results 231 to 240 of about 1,870,567 (303)

P,N,S‐Co‐Doped Red‐Emissive Carbon Dots for Microenvironment‐Sensitive Organelle Imaging and Monitoring Cellular Redox Processes

open access: yesSmall, EarlyView.
Phosphorus‐, nitrogen‐, and sulfur‐co‐doped red‐emissive carbon dots (PNS‐R‐CDs) enable ON–OFF–ON ClO−/GSH redox sensing and microenvironment‐responsive subnuclear imaging, providing a versatile fluorescent nanoplatform for monitoring localized oxidative stress and intracellular heterogeneity.
Amanda Ana Pinheiro   +5 more
wiley   +1 more source

Detection of l-arginine. [PDF]

open access: yesRSC Adv
Al-Qaysi WW, Faris RA, Abbas AK.
europepmc   +1 more source

Tailored Molecular Scissor Unlocks the Autocatalytic Potential of Hybridization Chain Reaction for Tunable Signal Amplification

open access: yesSmall, EarlyView.
We establish a recycling chain reaction (RCR) using a single hairpin, H3, which disassembles HCR assemblies to unlock the inherent autocatalytic potential of HCR. Conventional HCR is redefined as the fully constrained state (H3 = 0) of RCR. Tuning H3 ratios enables dynamic control over DNA assembly, providing a compact platform for biomolecular ...
Ting Li   +5 more
wiley   +1 more source

Engineering Carbon Nanotube Quantum Well Defects With Recognition Tripeptides for Optical Detection of Extracellular Vesicles in Plasma

open access: yesSmall, EarlyView.
A three‐residue peptide bioconjugated onto a carbon nanotube quantum defect turns the near‐infrared emission of quantum defects into a reporter of integrins on intact extracellular vesicles, directly in human plasma. The sensor reveals that healthy fibroblast vesicles carry as much RGD‐binding integrin as cancer‐derived ones, an adhesion‐associated ...
In‐Jun Hwang   +9 more
wiley   +1 more source

Fenestrated Microneedle Biosensor for Continuous In Vivo Lactate Monitoring in Interstitial Fluid

open access: yesSmall, EarlyView.
A fenestrated microneedle biosensor enables continuous transdermal monitoring of lactate in interstitial fluid while protecting the functional sensing interface during insertion into the skin. The platform delivers sensitive electrochemical lactate detection and distinguishes metabolic profiles in healthy and type 2 diabetic‐obese mice, and captures ...
Masoud Khazaei   +5 more
wiley   +1 more source

Eco-friendly method for the analysis of the soluble fraction of parabens leached from sludge of a hospital wastewater treatment plant-proof of concept. [PDF]

open access: yesAnal Bioanal Chem
Patiño SB   +7 more
europepmc   +1 more source

Revisiting small‐molecule fluorescent probes in food freshness detection

open access: yesSmart Molecules, EarlyView.
Fluorescent probes serve as versatile tools for food freshness monitoring. This review summarizes recent advances in probes targeting biogenic amines, hydrogen sulfide, pH values, and other key spoilage markers, highlighting their design principles, sensing mechanisms, and practical applications in food quality monitoring. Abstract Food spoilage driven
Xinrui Wang   +5 more
wiley   +1 more source

A multifunctional near‐infrared dual‐channel off‐on‐off probe for sequential detection of fluoride and hypochlorous acid: Multimatrix applications

open access: yesSmart Molecules, EarlyView.
This multifunctional, sequence‐specific probe (DHM) enables stepwise detection: fluoride triggers red/near‐infrared emission via cleavage, then hypochlorous acid induces blue fluorescence. It achieves fast, selective visual detection in environmental samples, foods, and in vivo models.
Tongtong Li   +10 more
wiley   +1 more source

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