Results 221 to 230 of about 9,550 (296)
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ACS Nano
Herein, we propose a paper-based laboratory via enzyme-free nucleic acid amplification and nanomaterial-assisted cation exchange reactions (CERs) assisted single-cell-level analysis (PLACS).
Yaqin He +11 more
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Herein, we propose a paper-based laboratory via enzyme-free nucleic acid amplification and nanomaterial-assisted cation exchange reactions (CERs) assisted single-cell-level analysis (PLACS).
Yaqin He +11 more
semanticscholar +1 more source
Nanoscale, 2019
Three-dimensional (3D) DNA walking machines inspired by natural molecular machines have attracted significant attention due to their high walking efficiency and signal amplification capability.
Ting-Ting Wu +6 more
semanticscholar +1 more source
Three-dimensional (3D) DNA walking machines inspired by natural molecular machines have attracted significant attention due to their high walking efficiency and signal amplification capability.
Ting-Ting Wu +6 more
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Fluorometer for endoscopic diagnosis of tumors
Medical Physics, 1984A filter fluorometer suitable for endoscopic applications has been developed for detection and characterization of superficial tumors by the fluorescence of a previously injected, tumor‐specific agent, hematoporphyrin derivative. Fluorescence is excited by violet light conducted through a fiberoptic lightguide in the endoscope, and the fluorescence ...
A E, Profio, D R, Doiron, J, Sarnaik
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A Spot Fluorometer for Protein Determination
Hoppe-Seyler´s Zeitschrift für physiologische Chemie, 1979An apparatus is described which allows spot fluorometry in situ for quantitative evaluation of protein spots stained with a fluorochrome (Hoechst 2495).
H G, Zimmer, F, Kiehl, V, Neuhoff
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Spectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy, 2019
Technological advances have widely improved the field of research as spectroscopic methods are now flexible in analyzing different sample matrix. There have been various methods used in applications of spectrofluorometer, but some were costly, time ...
John Adrian A Pascua +4 more
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Technological advances have widely improved the field of research as spectroscopic methods are now flexible in analyzing different sample matrix. There have been various methods used in applications of spectrofluorometer, but some were costly, time ...
John Adrian A Pascua +4 more
semanticscholar +1 more source
Sensors and actuators. B, Chemical, 2018
A new fluorescent reagent, 4,5-dimethoxyphthalaldehyde (M2OPA) is synthesized for the determination of ammonium in environmental waters. M2OPA has a similar molecular structure as o-phthalaldehyde (OPA), a commonly used fluorescent probe for ammonium ...
Min Zhang +3 more
semanticscholar +1 more source
A new fluorescent reagent, 4,5-dimethoxyphthalaldehyde (M2OPA) is synthesized for the determination of ammonium in environmental waters. M2OPA has a similar molecular structure as o-phthalaldehyde (OPA), a commonly used fluorescent probe for ammonium ...
Min Zhang +3 more
semanticscholar +1 more source
ACS Sensors, 2018
The sensitive simultaneous detection of multiple biomarkers is critical for the early diagnosis of diseases. Electrochemiluminescence (ECL) offers outstanding advantages, e.g., low background, over other optical sensing techniques.
Yan-Qin Lv +6 more
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The sensitive simultaneous detection of multiple biomarkers is critical for the early diagnosis of diseases. Electrochemiluminescence (ECL) offers outstanding advantages, e.g., low background, over other optical sensing techniques.
Yan-Qin Lv +6 more
semanticscholar +1 more source
Phase and modulation fluorometer
Journal of Scientific Instruments, 1961The instrument, which is designed for the measurement of fluorescence decay times of 10-7-10-9 s, comprises a 10 Mc/s hydrogen discharge lamp, fast photomultiplier, variable delay line and detector circuit for phase and modulation analysis of light signals from the lamp and specimen.
J B Birks, D J Dyson
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Design of a Clinical Fluorometer for Intraoral Use
The Journal of the American Dental Association, 1971A simple fluorometer has been designed for intraoral measurement of fluorescence. The instrument uses a mercury penlight source, fiber optics, filter, and a commercial detection system. Use of ultraviolet illumination for oral diagnosis is described in the preceding article.
J J, Hefferren, J B, Hall
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Handheld Fluorometers for Lab-on-a-Chip Applications
IEEE Transactions on Biomedical Circuits and Systems, 2009We describe the design, fabrication, and performance of a class of simple handheld fluorometers. The devices consist of a sensor along with an integrated optical filter packaged in a handheld format. The sensor is a differential active pixel sensor with in-pixel correlated double sampling fabricated in a 0.5-mu m 2-poly 3-metal complementary metal ...
Nicole M. Nelson +5 more
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