Bulky Counterions: Enhancing the Two-Photon Excited Fluorescence of Gold Nanoclusters

Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry
Franck BertorelleRodolphe Antoine

Abstract

Increasing fluorescence quantum yields of ligand-protected gold nanoclusters has attracted wide research interest. The strategy consisting in using bulky counterions has been found to dramatically enhance the fluorescence. In this Communication, we push forward this concept to the nonlinear optical regime. We show that by an appropriate choice of bulky counterions and of solvent, a 30-fold increase in two-photon excited fluorescence (TPEF) signal at ≈600 nm for gold nanoclusters can be obtained. This would correspond to a TPEF cross-section in the range of 0.1 to 1 GM.

References

Nov 10, 2001·Annual Review of Biomedical Engineering·P T SoK M Berland
Aug 9, 2008·Journal of the American Chemical Society·Sandeep A PatelRobert M Dickson
Jan 7, 2009·Journal of the American Chemical Society·Jianping XieJackie Y Ying
Nov 13, 2012·Nanoscale·Xavier Le GuévelMarc Schneider
May 9, 2013·Accounts of Chemical Research·Sung Hei YauTheodore Goodson
Oct 1, 2014·Nanoscale·Isabelle Russier-AntoinePierre-François Brevet
Jun 11, 2015·Journal of the American Chemical Society·Kyunglim PyoDongil Lee
Jun 26, 2015·Analytical Chemistry·Antonin SoleilhacRodolphe Antoine
Mar 13, 2013·Chemical Physics Letters·Sangram L RautIgnacy Gryczynski
Jan 15, 2016·Nanoscale·Isabelle Russier-AntoineRodolphe Antoine
Jan 30, 2016·Physical Chemistry Chemical Physics : PCCP·Željka SanaderVlasta Bonačić-Koutecký
Aug 13, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Katarzyna BrachKatarzyna Matczyszyn
Jan 18, 2018·Current Opinion in Biomedical Engineering·David R MillerAndrew K Dunn

❮ Previous
Next ❯

Citations

May 2, 2018·Nanoscale·Magdalena WaszkielewiczMarek Samoc
Mar 7, 2019·Chemical Society Reviews·Xi Kang, Manzhou Zhu
May 14, 2019·Physical Chemistry Chemical Physics : PCCP·Hussein FakhouriRodolphe Antoine
Jul 12, 2019·Chemical Society Reviews·Joanna Olesiak-BanskaMarek Samoc
Oct 28, 2019·Physical Chemistry Chemical Physics : PCCP·Martina PerićVlasta Bonačić-Koutecký

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.