In situ target enzyme-activated near-infrared fluorescent probe: A case study of CYP2J2 using three-fragmentary molecular assembly engineering

2021 ◽  
Vol 328 ◽  
pp. 129034 ◽  
Author(s):  
Yanpeng Dai ◽  
Tianzi Xue ◽  
Hefang Ji ◽  
Pan Zhang ◽  
Dongdong Zhang ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Near Infrared ◽  
Molecular Assembly ◽  
Target Enzyme

scholarly journals Chemical separation of acrylic color components enabling the identification of the pigment spectroscopic response

2021 ◽  
Vol 136 (2) ◽  
Author(s):  
Dario Barni ◽  
Luisa Raimondo ◽  
Anna Galli ◽  
Rossella Yivlialin ◽  
Simone Caglio ◽  
...  
Keyword(s):  
Analytical Method ◽  
Diffuse Reflectance ◽  
Near Infrared ◽  
Chemical Properties ◽  
Chemical Separation ◽  
Spectroscopic Techniques ◽  
Characteristic Response ◽  
Color Components

AbstractAcrylic colors are mixtures of several components that can be identified as pigments, binders, and fillers, so that, when analyzed, the characteristic response of the different components may not be recognizable. This limits the accuracy of spectroscopic techniques, nonetheless particularly useful as they are noninvasive and can be applied in situ on real artworks. Here, a method is proposed to chemically separate and identify the different components of acrylic colors, in order to be able to study their spectroscopic response separately, in particular by ultraviolet–visible–near-infrared diffuse reflectance. The results clearly show that the chemical and analytical method developed here is fully reliable, with the advantage of clearly separating the response of the different components without any change of their chromatic/chemical properties. As a case study, the new method is applied here to original acrylic colors used by the Italian artist Ico Parisi, in view of building a spectra database.

In-Situ Imaging of Azoreductase Activity in the Acute and Chronic Ulcerative Colitis Mice by a Near-Infrared Fluorescent Probe

2019 ◽  
Vol 91 (16) ◽  
pp. 10901-10907 ◽  
Author(s):  
Yang Tian ◽  
Yongfei Li ◽  
Wen-Li Jiang ◽  
Dong-Ye Zhou ◽  
Junjie Fei ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Fluorescent Probe ◽  
Chronic Ulcerative Colitis ◽  
Near Infrared ◽  
Azoreductase Activity ◽  
In Situ Imaging

scholarly journals A practical strategy to design and develop an isoform-specific fluorescent probe for a target enzyme: CYP1A1 as a case study

2017 ◽  
Vol 8 (4) ◽  
pp. 2795-2803 ◽  
Author(s):  
Zi-Ru Dai ◽  
Lei Feng ◽  
Qiang Jin ◽  
Hailing Cheng ◽  
Yan Li ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Specific Probe ◽  
Practical Strategy ◽  
Target Enzyme

A practical strategy was proposed and successfully used to design and develop an isoform-specific probe for a given enzyme.

In Situ Imaging of Cysteine in the Brains of Mice with Epilepsy by a Near-Infrared Emissive Fluorescent Probe

2020 ◽  
Vol 92 (3) ◽  
pp. 2802-2808 ◽  
Author(s):  
Songjiao Li ◽  
Dan Song ◽  
Weijing Huang ◽  
Zhen Li ◽  
Zhihong Liu
Keyword(s):  
Fluorescent Probe ◽  
Near Infrared ◽  
In Situ Imaging

A distinctive mitochondrion-targeting, in situ-activatable near-infrared fluorescent probe for visualizing sulfur dioxide derivatives and their fluctuations in vivo

2020 ◽  
Vol 8 (9) ◽  
pp. 1914-1921 ◽  
Author(s):  
Lintao Zeng ◽  
Tianhong Chen ◽  
Bao-Quan Chen ◽  
Hou-Qun Yuan ◽  
Ruilong Sheng ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Fluorescent Probe ◽  
Near Infrared ◽  
Mitochondria Targeting

A mitochondria-targeting and in situ-activatable near-infrared fluorescent probe has been developed for imaging sulfur dioxide derivatives and their fluctuations in vivo.

scholarly journals Origin and Circulation of Calcarenite Artifacts in the Area of Montescaglioso between 6th and 3rd Century BC: An Interdisciplinary Approach

Heritage ◽  
2019 ◽  
Vol 2 (1) ◽  
pp. 467-489
Author(s):  
Dimitris Roubis ◽  
Claudia Sciuto
Keyword(s):  
Near Infrared ◽  
Raw Materials ◽  
Interdisciplinary Approach ◽  
Spectral Signature ◽  
Trade Patterns ◽  
Tool Marks ◽  
Molecular Features

The study of stone artifacts and their provenance is an important proxy for understanding the entangled relationship between humans and geological resources. In this paper, we explore the potentialities of an interdisciplinary approach combining in situ documentation of tool marks and characterization of stone types using a near infrared (NIR) portable probe. We argue that this protocol is useful for collecting screening data on objects that cannot be moved or sampled. NIR spectra describe textural and molecular features of the materials and can be used to achieve a preliminary characterization of raw materials. We present a case study from the territory of Montescaglioso (Basilicata, near Matera, Italy), where we combined the analysis of a calcarenite (limestone) quarry, in Masseria D’Alessio, which was exploited since the 6th century BC, as well as artifacts of the same chronology from surveys and excavations in the surroundings. The aim was to collect preliminary data about the distribution of the particular calcarenite extracted from the quarry and identify exploitation and trade patterns. The data were processed using multivariate statistics to highlight the relevant spectral information and perform supervised classification of spectral features. Documentation of tool marks and the process of stone working were combined with the spectral signature of the artifacts to link the stone types to the description of their extraction/carving methods.

scholarly journals In situ visualization of ozone in the brains of mice with depression phenotypes by using a new near-infrared fluorescence probe

2019 ◽  
Vol 10 (9) ◽  
pp. 2805-2810 ◽  
Author(s):  
Ping Li ◽  
Jijuan Wang ◽  
Xin Wang ◽  
Qi Ding ◽  
Xiaoyi Bai ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Near Infrared ◽  
Fluorescence Probe ◽  
Near Infrared Fluorescence ◽  
In Situ Visualization

A near-infrared fluorescent probe was exploited to sensitively visualize ozone in the brains of mice with depression phenotypes in situ.

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