Results 21 to 30 of about 427,538 (258)

A Threshold-Limited Fluorescence Probe for Viscosity

Frontiers in Chemistry, 2019
Viscosity of body fluid is an established biomarker of pathological conditions. Abnormality of cellular viscosity occurs when cells are challenged with external stresses.
Zuhai Lei, Zuhai Lei, Kai Xin, Shaobing Qiu, Liling Hou, Xiangming Meng, Youjun Yang   +6 more
doaj   +1 more source

Fluorescence of molecular probe and its diffusion in a biological liquid [PDF]

Компьютерные исследования и моделирование, 2012
The results of theoretical researches of molecular probe diffusion as well as its impact to probe fluorescence spectra are represented in this paper. The case with compound introduction to biological liquid as an injection has been considered.
Valeriya Sergeevna Maryakhina, Vyacheslav Vasilevich Gunkov   +1 more
doaj   +1 more source

Multi-carbon dots and aptamer based signal amplification ratiometric fluorescence probe for protein tyrosine kinase 7 detection

Journal of Nanobiotechnology, 2021
Background Protein tyrosine kinase 7 (PTK 7) is a membrane receptor, which can be found in various kinds of cancers. In view of this, detection of PTK 7 in the peripheral circulation would be an effective way for the early diagnosis of cancer. Results In
Yunsu Ma, Yuan Wang, Yongjie Liu, Lujia Shi, Dongzhi Yang   +4 more
doaj   +1 more source

An Optical Fiber Sensor Based on Fluorescence Lifetime for the Determination of Sulfate Ions

Sensors, 2021
A new optical fiber sensor based on the fluorescence lifetime was prepared for specific detection of sulfate ion concentration, where 1,1′-(anthracene-9,10-diylbis(methylene))bis(3-(dodecylcarbamoyl)pyridin-1-ium) acted as the sulfate fluorescent probe ...
Liyun Ding, Panfeng Gong, Bing Xu, Qingjun Ding   +3 more
doaj   +1 more source

A Customized Two Photon Fluorescence Imaging Probe Based on 2D scanning MEMS Mirror Including Electrothermal Two-Level-Ladder Dual S-Shaped Actuators

Micromachines, 2020
We report the design and characterization of a two-photon fluorescence imaging miniature probe. This customized two-axis scanning probe is dedicated for intraoperative two-photon fluorescence imaging endomicroscopic use and is based on a micro-electro ...
Hussein Mehidine, Min Li, Jean-Francois Lendresse, Francoise Bouvet, Huikai Xie, Darine Abi Haidar   +5 more
doaj   +1 more source

Peptide-Conjugated Quantum Dots Act as the Target Marker for Human Pancreatic Carcinoma Cells

Cellular Physiology and Biochemistry, 2016
Background/Aims: In the present study, we describe a novel and straightforward approach to produce a cyclic- arginine-glycine-aspartic (RGD)-peptide-conjugated quantum dot (QD) probe as an ideal target tumor biomarker.
Shuang-ling Li, Jing Yang, Xiao-fei Lei, Jian-na Zhang, Hong-li Yang, Kun Li, Chang-qing Xu   +6 more
doaj   +1 more source

Fabricated AIE-Based Probe to Detect the Resistance to Anoikis of Cancer Cells Detached from Tumor Tissue

Cells, 2022
(1) Background: Resisting anoikis is a vital and necessary characteristic of malignant cancer cells, but there is no existing quantification method.
Ya-Nan Chang, Yuelan Liang, Jiayi Wang, Ziteng Chen, Ruyu Yan, Kui Chen, Juan Li, Jiacheng Li, Haojun Liang, Gengmei Xing   +9 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Construction of Fluorescent Probe System Based on Click-Declick Chemical Reaction for Hg2+ Detection [PDF]

Shipin Kexue
Based on the click chemical reaction between hybrid rhodamine and thiol compounds and the declick chemical reaction caused by the coordinative interaction between thiol compounds and mercury ions, a ternary system of coumarin hybrid rhodamine probe, 1,3 ...
TAO Jian, CHENG Jie, SUN Zhiyuan, YIN Yuyun, YANG Jingjing, ZHANG Rufan, SUN Pengjuan, CAI Shuo, QU Lingbo, YANG Ran
doaj   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source