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Open AccessJournal ArticleDOI

Enhanced two-photon absorption with novel octupolar propeller-shaped fluorophores derived from triphenylamine.

TLDR
Novel octupolar fluorophores derived from the symmetrical functionalization of a triphenylamine core with strong acceptor peripheral groups via phenylene-ethynylene linkers have been synthesized and shown to exhibit high fluorescence quantum yields, very large TPA cross-sections in the red-NIR region, and suitable photostability.
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This article is published in Organic Letters.The article was published on 2004-01-08 and is currently open access. It has received 242 citations till now. The article focuses on the topics: Triphenylamine.

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Citations
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Journal ArticleDOI

Multiphoton Absorbing Materials : Molecular Designs, Characterizations, and Applications

TL;DR: Nonlinear Optical Characterizations of Multiphoton Active Materials 1282 5.2.1.
Journal Article

Two-photon polymerization initiators for three-dimensional optical data storage and microfabrication

TL;DR: In this article, a class of π;-conjugated compounds that exhibit large δ (as high as 1, 250 × 10−50 cm4 s per photon) and enhanced two-photon sensitivity relative to ultraviolet initiators were developed and used to demonstrate a scheme for three-dimensional data storage which permits fluorescent and refractive read-out, and the fabrication of 3D micro-optical and micromechanical structures, including photonic-bandgap-type structures.
Journal ArticleDOI

Two-photon absorption and the design of two-photon dyes.

TL;DR: The theory of two-photon absorption is introduced, the wide range of potential applications is surveyed, and emerging structure-property correlations that can serve as guidelines for the development of efficient two-Photon dyes are highlighted.
Journal ArticleDOI

Enhanced two-photon absorption of organic chromophores: theoretical and experimental assessments ∗∗

TL;DR: In this paper, a review of experimental and theoretical methodologies allowing detailed investigation and analysis of two-photon absorption properties of organic chromophores is presented, focusing on symmetric and asymmetric donor/acceptor substitution and branching.
References
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Journal ArticleDOI

Two-Photon Laser Scanning Fluorescence Microscopy

TL;DR: The fluorescence emission increased quadratically with the excitation intensity so that fluorescence and photo-bleaching were confined to the vicinity of the focal plane as expected for cooperative two-photon excitation.
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A survey of Hammett substituent constants and resonance and field parameters

TL;DR: The Hammett equation has been widely used for the study and interpretation of organic reactions and their mechanisms as mentioned in this paper, and it is astonishing that u constants, obtained simply from the ionization of organic acids in solution, can frequently predict successfully equilibrium and rate constants for a variety of families of reactions in solution.
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Finer features for functional microdevices

TL;DR: Micromachines can be created with higher resolution using two-photon absorption, and the results can be higher resolution than previously reported using single photon absorption techniques.
Journal ArticleDOI

Association of human papillomavirus types 16 and 18 E6 proteins with p53.

TL;DR: This study shows that the E6 protein of HPV-16 is capable of binding to the cellular p53 protein, providing further evidence that the human papillomaviruses, the adenovirus type 5, and SV40 may effect similar cellular pathways in transformation.
Journal ArticleDOI

Water-Soluble Quantum Dots for Multiphoton Fluorescence Imaging in Vivo

TL;DR: This work characterized water-soluble cadmium selenide–zinc sulfide quantum dots for multiphoton imaging in live animals and found no evidence of blinking (fluorescence intermittency) in solution on nanosecond to millisecond time scales.
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Frequently Asked Questions (1)
Q1. What contributions have the authors mentioned in the paper "Enhanced two-photon absorption with novel octupolar propeller-shaped fluorophores derived from triphenylamine" ?

In this perspective, the authors have investigated a series of novel three-branched octupolar fluorophores with the aim of optimizing their TPEF cross-section ( σ2φ ) in the NIR region, as well as ensuring suitable photostability.