Two-photon fluorescence imaging and spectroscopy of nanostructured organic materials using a photon scanning tunneling microscope

2000 ◽  
Vol 76 (1) ◽  
pp. 1-3 ◽  
Author(s):  
Yuzhen Shen ◽  
Daniel Jakubczyk ◽  
Faming Xu ◽  
Jacek Swiatkiewicz ◽  
Paras N. Prasad ◽  
...  
Keyword(s):  
Fluorescence Imaging ◽  
Scanning Tunneling Microscope ◽  
Organic Materials ◽  
Scanning Tunneling ◽  
Tunneling Microscope ◽  
Two Photon ◽  
Imaging And Spectroscopy ◽  
Two Photon Fluorescence ◽  
Photon Scanning Tunneling Microscope ◽  
Photon Fluorescence

STM of freeze-fracture replicas: Problems and promises

1993 ◽  
Vol 51 ◽  
pp. 68-69
Author(s):  
J. T. Woodward ◽  
J. A. N. Zasadzinski
Keyword(s):  
Scanning Tunneling Microscope ◽  
Organic Materials ◽  
Freeze Fracture ◽  
Atomic Resolution ◽  
Scanning Tunneling ◽  
Tunneling Microscope ◽  
Molecular Scale ◽  
Organic Surfaces ◽  
Metal Layers ◽  
Conductive Surfaces

The Scanning Tunneling Microscope (STM) offers exciting new ways of imaging surfaces of biological or organic materials with resolution to the sub-molecular scale. Rigid, conductive surfaces can readily be imaged with the STM with atomic resolution. Unfortunately, organic surfaces are neither sufficiently conductive or rigid enough to be examined directly with the STM. At present, nonconductive surfaces can be examined in two ways: 1) Using the AFM, which measures the deflection of a weak spring as it is dragged across the surface, or 2) coating or replicating non-conductive surfaces with metal layers so as to make them conductive, then imaging with the STM. However, we have found that the conventional freeze-fracture technique, while extremely useful for imaging bulk organic materials with STM, must be modified considerably for optimal use in the STM.

Lysosomal targeted NIR photosensitizer for photodynamic therapy and two-photon fluorescent imaging

2021 ◽  
Author(s):  
Ruiyuan Liu ◽  
Yuping Zhou ◽  
Di Zhang ◽  
Genghan He ◽  
Chuang Liu ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Fluorescence Imaging ◽  
Near Infrared ◽  
Fluorescent Imaging ◽  
High Fidelity ◽  
Design And Synthesis ◽  
Two Photon ◽  
Two Photon Fluorescence ◽  
Photon Fluorescence

Design and synthesis of near-infrared (NIR) emissive fluorophore for imaging of organelle and photodynamic therapy has received enormous attention. Hence, NIR emissive fluorophore of high-fidelity lysosome targeting, two-photon fluorescence imaging,...

Enhanced Two-Photon Fluorescence Imaging and Therapy of Cancer Cells via Gold@Bridged Silsesquioxane Nanoparticles

Small ◽  
2014 ◽  
Vol 11 (3) ◽  
pp. 295-299 ◽  
Author(s):  
Jonas Croissant ◽  
Marie Maynadier ◽  
Olivier Mongin ◽  
Vincent Hugues ◽  
Mireille Blanchard-Desce ◽  
...  
Keyword(s):  
Cancer Cells ◽  
Fluorescence Imaging ◽  
Two Photon ◽  
Bridged Silsesquioxane ◽  
Two Photon Fluorescence ◽  
Photon Fluorescence

A lysosome-targeted near-infrared photosensitizer for photodynamic therapy and two-photon fluorescence imaging

2021 ◽  
Author(s):  
Yinuo Tu ◽  
Weikang Xia ◽  
Xu Wu ◽  
Lei Wang
Keyword(s):  
Photodynamic Therapy ◽  
Fluorescence Imaging ◽  
Near Infrared ◽  
Two Photon ◽  
Two Photon Fluorescence ◽  
Photon Fluorescence

Organelle-targeted two-photon near-infrared photosensitizers are highly desirable for photodynamic therapy (PDT) of cancer. Herein, in this contribution, we have developed a 2-dicyanomethylenethiazole based D-π-A structured near-infrared photosensitizer (TTR). TTR depicts...

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