Abstract
We report the synthesis, linear and nonlinear spectroscopy of the paracyclophane-based two-photon absorption (TPA) fluorophores. Two-photon induced fluorescence (TPIF) measurements in water show a substantial decrease in TPA cross section () and fluorescence quantum yield (), relative to toluene. We note that to obtain optimum two-photon action cross sections () in water, one needs to fine tune the intramolecular charge transfer (ICT). Microenvironment modulation using the micellar structure in water increases values similar to those obtained in toluene. The measured values in water are the highest among reported so far, suggesting important guidelines for designing of optimized TPIF molecular-labels.
| Original language | English |
|---|---|
| Journal | Molecular Crystals and Liquid Crystals |
| Volume | 485 |
| DOIs | |
| Publication status | Published - 2008 Jul 24 |
| Externally published | Yes |
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Keywords
- Bioimaging
- Paracyclophane
- TPA molecular label
- Two-photon absorption
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Water-soluble two-photon fluorophores based on paracyclophane. / Woo, Han Young; Bazan, Guillermo C.
In: Molecular Crystals and Liquid Crystals, Vol. 485, 24.07.2008.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Water-soluble two-photon fluorophores based on paracyclophane
AU - Woo, Han Young
AU - Bazan, Guillermo C.
PY - 2008/7/24
Y1 - 2008/7/24
N2 - We report the synthesis, linear and nonlinear spectroscopy of the paracyclophane-based two-photon absorption (TPA) fluorophores. Two-photon induced fluorescence (TPIF) measurements in water show a substantial decrease in TPA cross section () and fluorescence quantum yield (), relative to toluene. We note that to obtain optimum two-photon action cross sections () in water, one needs to fine tune the intramolecular charge transfer (ICT). Microenvironment modulation using the micellar structure in water increases values similar to those obtained in toluene. The measured values in water are the highest among reported so far, suggesting important guidelines for designing of optimized TPIF molecular-labels.
AB - We report the synthesis, linear and nonlinear spectroscopy of the paracyclophane-based two-photon absorption (TPA) fluorophores. Two-photon induced fluorescence (TPIF) measurements in water show a substantial decrease in TPA cross section () and fluorescence quantum yield (), relative to toluene. We note that to obtain optimum two-photon action cross sections () in water, one needs to fine tune the intramolecular charge transfer (ICT). Microenvironment modulation using the micellar structure in water increases values similar to those obtained in toluene. The measured values in water are the highest among reported so far, suggesting important guidelines for designing of optimized TPIF molecular-labels.
KW - Bioimaging
KW - Paracyclophane
KW - TPA molecular label
KW - Two-photon absorption
UR - http://www.scopus.com/inward/record.url?scp=47549111720&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=47549111720&partnerID=8YFLogxK
U2 - 10.1080/15421400801925075
DO - 10.1080/15421400801925075
M3 - Article
VL - 485
JO - Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals
SN - 1542-1406
ER -