Results 41 to 50 of about 26,686 (294)

Integrated Digital Microfluidic Platform for Colorimetric Sensing of Nitrite [PDF]

open access: yesACS Omega, 2020
In this paper, a palm-size digital microfluidic (DMF) platform integrated with colorimetric analysis was developed for quantifying the concentration of nitrite. To realize the on-chip repeatable colorimetric analysis, a novel printed circuit board (PCB)-based DMF chip was designed with an embedded aperture on the actuator electrode, forming a vertical ...
Zhen Gu   +4 more
openaire   +3 more sources

Membrane-based portable colorimetric gaseous chlorine sensing probe

open access: yes, 2020
Highly toxic chlorine gas imposes serious health risks in the workplace. The ability to on-site, real-time monitoring of instantaneous and time-weighted average (TWA) chlorine gas concentrations in a simple, sensitive, accurate, and reliable manner would
Zhao, Huijun   +4 more
core   +1 more source

A Hybrid Electrochemical−Colorimetric Sensing Platform for Detection of Explosives

open access: yesJournal of the American Chemical Society, 2009
A highly selective, sensitive, and low-cost hybrid sensing platform is developed based on extraordinary properties of explosives in an ionic liquid and an integrated electrochemical and colorimetric approach.
Forzani, Erica S.   +9 more
openaire   +3 more sources

Colorimetric Systems for the Detection of Bacterial Contamination: Strategy and Applications

open access: yesBiosensors, 2022
Bacterial contamination is a public health concern worldwide causing enormous social and economic losses. For early diagnosis and adequate management to prevent or treat pathogen-related illnesses, extensive effort has been put into the development of ...
Dong-Min Kim, Seung-Min Yoo
doaj   +1 more source

Colorimetric Gas Sensing Washable Threads for Smart Textiles [PDF]

open access: yesScientific Reports, 2019
AbstractA fabrication method for a stable entrapment of optically responsive dyes on a thread substrate is proposed to move towards a detection system that can be integrated into clothing. We use the dyes 5,10,15,20-Tetraphenyl-21H,23H-porphine manganese(III) chloride (MnTPP), methyl red (MR), and bromothymol blue (BTB), for a proof-of-concept.
Rachel E. Owyeung   +2 more
openaire   +2 more sources

Taking advance of isotropic-to-anisotropic morin-modified silver nanoparticles for simultaneous colorimetric sensing of trivalent chromium and iron ions

open access: yesChemical Physics Impact, 2023
Taking into account colorimetric sensing purposes of silver nanoparticles (AgNPs), a convenient system for simultaneous detection of multiple metal ions has been more challenging and less exploited.
Trung Dang-Bao   +4 more
doaj   +1 more source

Multiformity of Photoelectron Storages in Functionalized Carbon Nitrides Enabling Reversible and Adaptable Colorimetric Sensing

open access: yes, 2021
Colorimetric sensing has been widely used for centuries across diverse fields, thanks to easy operation with no electricity and uncompromised high sensitivity. However, the limited number of chromogenic systems hampers its broader applications.
Zhixin, Zhou   +10 more
core   +1 more source

Fluorescent and Colorimetric Electrospun Nanofibers for Heavy-Metal Sensing [PDF]

open access: yesBiosensors, 2017
The accumulation of heavy metals in the human body and/or in the environment can be highly deleterious for mankind, and currently, considerable efforts have been made to develop reliable and sensitive techniques for their detection. Among the detection methods, chemical sensors appear as a promising technology, with emphasis on systems employing ...
Idelma Terra   +3 more
openaire   +3 more sources

A Review on Colorimetric Sensing of Tumor Markers Based on Enzyme-Mimicking Nanomaterials

open access: yes, 2021
Nanomedicine is an arising field that exploits nanotechnology concepts for pioneered therapy and diagnostics. Colorimetric sensors for tumor markers have displayed interesting benefits compared to conventional systems in clinical laboratory diagnosis ...
Filik, Hayati   +2 more
core   +1 more source

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

open access: yesMolecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano   +6 more
wiley   +1 more source

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