Results 31 to 40 of about 2,736 (189)

Fast repetition rate fs pulsed lasers for advanced PLIM microscopy [PDF]

Journal of Innovative Optical Health Sciences, 2019
Simultaneous metabolic and oxygen imaging is promising to follow up therapy response, disease development and to determine prognostic factors. FLIM of metabolic coenzymes is now widely accepted to be the most reliable method to determine cellular ...
Sviatlana Kalinina, Alexander Jelzow, Tobias Plötzing, Angelika Rück   +3 more
doaj   +1 more source

Imaging Oxygen Pressure in the Rodent Retina by Phosphorescence Lifetime [PDF]

, 2006
Many diseases of the eye, especially those causing inner retinal neovascularization (diabetic retinopathy, retinopathy of prematurity, sickle cell disease, etc.) have regional hypoxia as either a primary causative or early contributory factor. This is particularly true for diabetic retinopathy, the leading cause of blindness for individuals between 20 ...
David F, Wilson, Sergei A, Vinogradov, Pavel, Grosul, Newman, Sund, M Noel, Vacarezza, Jean, Bennett   +5 more
openaire   +2 more sources

Intracellular oxygen: Similar results from two methods of measurement using phosphorescent nanoparticles [PDF]

Journal of Innovative Optical Health Sciences, 2014
The ability to resolve the spatio-temporal complexity of intracellular O2 distribution is the "Holy Grail" of cellular physiology. In an effort to obtain a minimally invasive approach to the mapping of intracellular O2 tensions, two methods of ...
David Lloyd, Catrin F. Williams, K. Vijayalakshmi, M. Kombrabail, Nick White, Anthony J. Hayes, Miguel A. Aon, G. Krishnamoorthy   +7 more
doaj   +1 more source

Induction of long-lived room temperature phosphorescence of carbon dots by water in hydrogen-bonded matrices

Nature Communications, 2018
A long phosphorescence lifetime is desirable for imaging and detection, however, phosphorescence is often quenched in aqueous environments limiting applications. Here, Li et al.
Qijun Li, Ming Zhou, Mingyang Yang, Qingfeng Yang, Zhixun Zhang, Jing Shi   +5 more
doaj   +1 more source

Bone analysis using an aggregation‐induced emission‐active iridium complex

Aggregate, 2023
Fluorescent analysis of bone provides valuable insights into bone structures. However, conventional dyes suffer from low specificity on bone tissue, small stokes shift, short fluorescent lifetime, and aggregation‐caused quenching effect, which result in ...
Xianpeng Zhang, Xinling Liu, Hongwen Yu, Shuang Shen, Junchao Zhi, Zhen Gao, Jingqi Xin, Jiaqi Song, Liang Shao, Caiting Meng, Feifei An, Taotao Huo, Shichang Liu, Ye Zhang, Li Xu, Guanying Li   +15 more
doaj   +1 more source

pH-Responsive N^C-Cyclometalated Iridium(III) Complexes: Synthesis, Photophysical Properties, Computational Results, and Bioimaging Application

Molecules, 2021
Herein we report four [Ir(N^C)2(L^L)]n+, n = 0,1 complexes (1–4) containing cyclometallated N^C ligand (N^CH = 1-phenyl-2-(4-(pyridin-2-yl)phenyl)-1H-phenanthro[9,10-d]imidazole) and various bidentate L^L ligands (picolinic acid (1), 2,2′-bipyridine (2),
Anastasia I. Solomatina, Daria O. Kozina, Vitaly V. Porsev, Sergey P. Tunik   +3 more
doaj   +1 more source

One‐Pot Synthesis of Deep Blue Hydrophobic Carbon Dots with Room Temperature Phosphorescence, White Light Emission, and Explosive Sensor

Advanced Electronic Materials, 2022
Bright luminescent hydrophobic carbon dots receive significant attention on account of their potential utility in bio‐imaging, sensors, and creating a full range of colors in displays.
Sudhakar Pagidi, Hari Krishna Sadhanala, Kusha Sharma, Aharon Gedanken   +3 more
doaj   +1 more source

Polymeric Nanoparticles with Embedded Eu(III) Complexes as Molecular Probes for Temperature Sensing

Molecules, 2022
Three novel luminescent Eu(III) complexes, Eu1–Eu3, have been synthesized and characterized with CHN analysis, mass-spectrometry and 1H NMR spectroscopy.
Kirill M. Kuznetsov, Vadim A. Baigildin, Anastasia I. Solomatina, Ekaterina E. Galenko, Alexander F. Khlebnikov, Victor V. Sokolov, Sergey P. Tunik, Julia R. Shakirova   +7 more
doaj   +1 more source

Novel NIR-Phosphorescent Ir(III) Complexes: Synthesis, Characterization and Their Exploration as Lifetime-Based O₂ Sensors in Living Cells

Molecules, 2022
A series of [Ir(N^C)2(N^N)]+ NIR-emitting orthometalated complexes (1–7) has been prepared and structurally characterized using elemental analysis, mass-spectrometry, and NMR spectroscopy.
Ilya S. Kritchenkov, Vitaliya G. Mikhnevich, Victoria S. Stashchak, Anastasia I. Solomatina, Daria O. Kozina, Victor V. Sokolov, Sergey P. Tunik   +6 more
doaj   +1 more source

Aggregation-Induced Ignition of Near-Infrared Phosphorescence of Non-Symmetric [Pt(C^N*N’^C’)] Complex in Poly(caprolactone)-based Block Copolymer Micelles: Evaluating the Alternative Design of Near-Infrared Oxygen Biosensors

Biosensors, 2022
In the present work, we described the preparation and characterization of the micelles based on amphiphilic poly(ε-caprolactone-block-ethylene glycol) block copolymer (PCL-b-PEG) loaded with non-symmetric [Pt(C^N*N’^C’)] complex (Pt1) (where C^N*N’^C’: 6-
Nina A. Zharskaia, Anastasia I. Solomatina, Yu-Chan Liao, Ekaterina E. Galenko, Alexander F. Khlebnikov, Pi-Tai Chou, Pavel S. Chelushkin, Sergey P. Tunik   +7 more
doaj   +1 more source