scholarly journals Structural and Theoretical Basis for Ligand Exchange on Thiolate Monolayer Protected Gold Nanoclusters

2012 ◽  
Vol 134 (32) ◽  
pp. 13316-13322 ◽  
Author(s):  
Christine L. Heinecke ◽  
Thomas W. Ni ◽  
Sami Malola ◽  
Ville Mäkinen ◽  
O. Andrea Wong ◽  
...  
Keyword(s):  
Ligand Exchange ◽  
Theoretical Basis ◽  
Gold Nanoclusters

Silver-Assisted Thiolate Ligand Exchange Induced Photoluminescent Boost of Gold Nanoclusters for Selective Imaging of Intracellular Glutathione

2018 ◽  
Vol 30 (6) ◽  
pp. 1947-1955 ◽  
Author(s):  
Xueqi Hu ◽  
Youkun Zheng ◽  
Junyu Zhou ◽  
Danjun Fang ◽  
Hui Jiang ◽  
...  
Keyword(s):  
Ligand Exchange ◽  
Gold Nanoclusters ◽  
Thiolate Ligand ◽  
Intracellular Glutathione

Switching the subcellular organelle targeting of atomically precise gold nanoclusters by modifying the capping ligand

2018 ◽  
Vol 54 (66) ◽  
pp. 9222-9225 ◽  
Author(s):  
Ying Yang ◽  
Shuxin Wang ◽  
Shuang Chen ◽  
Yuhua Shen ◽  
Manzhou Zhu
Keyword(s):  
Fluorescence Imaging ◽  
Ligand Exchange ◽  
Gold Nanoclusters ◽  
Subcellular Organelle ◽  
Photodynamic Activity ◽  
Organelle Targeting

Here, we have achieved the target switching fluorescence imaging and photodynamic activity of hydrosoluble AuNCs from lysosomes to mitochondria through ligand exchange.

Tailoring the luminescence of atomic clusters via ligand exchange reaction mediated post synthetic modification

2020 ◽  
Vol 22 (7) ◽  
pp. 3959-3964
Author(s):  
Srestha Basu ◽  
Chirantan Gayen ◽  
Santanu Dolai ◽  
Anumita Paul
Keyword(s):  
Exchange Reaction ◽  
Ligand Exchange ◽  
Gold Nanoclusters ◽  
Gold Clusters ◽  
Atomic Clusters ◽  
Luminescence Properties ◽  
Ligand Exchange Reaction ◽  
Technological Challenge

Modulation of luminescent characteristics of atomic gold clusters is an important technological challenge for broadening their futuristic applications. Post synthetic modification of histidine stabilized gold nanoclusters via ligand exchange reaction with cysteine is one such viable route towards modulation of the luminescence properties of gold nanoclusters.

Acetylide-for-thiolate and thiolate-for-acetylide exchange on gold nanoclusters

Nanoscale ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 6239-6242 ◽  
Author(s):  
Christopher A. Hosier ◽  
Ian D. Anderson ◽  
Christopher J. Ackerson
Keyword(s):  
Ligand Exchange ◽  
Gold Nanoclusters ◽  
Exchange Reactions ◽  
Bond Strengths

New ligand-exchange reactions are reported for thiolate- and acetylide-protected gold nanoclusters, which are rationalized through bond strengths and enthalpy arguments.

scholarly journals Ligand exchange reactions on thiolate-protected gold nanoclusters

2021 ◽  
Author(s):  
Yanan Wang ◽  
Thomas Bürgi
Keyword(s):  
Exchange Reaction ◽  
Ligand Exchange ◽  
Gold Nanoclusters ◽  
Exchange Reactions ◽  
Ligand Exchange Reaction ◽  
Modification Method ◽  
Post Synthesis

As a versatile post-synthesis modification method, ligand exchange reaction exhibits great potential to extend the space of accessible nanoclusters. In this review, we sumarized this process for thiolate-protected gold nanoclusters....

scholarly journals Transformation from [Au25(SCH2CH2CH2CH3)18]0 to Au28(SCH2CH(CH3)Ph)21 gold nanoclusters: gentle conditions is enough

2019 ◽  
Vol 55 (99) ◽  
pp. 14914-14917 ◽  
Author(s):  
Yanan Wang ◽  
Belén Nieto-Ortega ◽  
Thomas Bürgi
Keyword(s):  
Exchange Reaction ◽  
Ligand Exchange ◽  
Gold Nanoclusters ◽  
Ligand Exchange Reaction ◽  
Mild Conditions

Herein we report the transformation of [Au25(SR)18]0 into Au28(SR)21 induced by ligand exchange reaction under mild conditions.

Video-Enhanced Microscopy--Better Visibility of Plant Cell Structures

1982 ◽  
Vol 40 ◽  
pp. 182-185
Author(s):  
N.S. Allen ◽  
R.D. Allen
Keyword(s):  
Diffraction Pattern ◽  
Theoretical Basis ◽  
Numerical Aperture ◽  
Gain Control ◽  
Control Unit ◽  
Camera Control ◽  
Variable Gain ◽  
Contrast Method ◽  
Fine Detail ◽  
Cell Structures

Various methods of video-enhanced microscopy combine TV cameras with light microscopes creating images with improved resolution, contrast and visibility of fine detail, which can be recorded rapidly and relatively inexpensively. The AVEC (Allen Video-enhanced Contrast) method avoids polarizing rectifiers, since the microscope is operated at retardations of λ/9- λ/4, where no anomaly is seen in the Airy diffraction pattern. The iris diaphram is opened fully to match the numerical aperture of the condenser to that of the objective. Under these conditions, no image can be realized either by eye or photographically. Yet the image becomes visible using the Hamamatsu C-1000-01 binary camera, if the camera control unit is equipped with variable gain control and an offset knob (which sets a clamp voltage of a D.C. restoration circuit). The theoretical basis for these improvements has been described.

Severe Paradoxical Dysphonia in Two Young Women

1993 ◽  
Vol 2 (3) ◽  
pp. 52-55 ◽  
Author(s):  
Michael Collins ◽  
Robert McDonald ◽  
Robert Stanley ◽  
Timothy Donovan ◽  
C. Frank Bonebrake
Keyword(s):  
Young Women ◽  
Theoretical Basis ◽  
Therapeutic Regimen ◽  
Instrumental Data ◽  
Relationship Of ◽  
The Relationship

This report describes an unusual and persistent dysphonia in two young women who had taken a therapeutic regimen of isotretinoin for intractable acne. We report perceptual and instrumental data for their dysphonia, and pose a theoretical basis for the relationship of dysphonia to this drug. We also provide recommendations for reducing the risk of acquiring a dysphonia during the course of treatment with isotretinoin.

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