A Highly Selective Reaction-Based Two-Photon Probe for Copper(I) in Aqueous Media

ChemPlusChem ◽  
2013 ◽  
Vol 78 (8) ◽  
pp. 785-788 ◽  
Author(s):  
Debabrata Maity ◽  
Bidyut Sarkar ◽  
Sudipta Maiti ◽  
T. Govindaraju
The Analyst ◽  
2011 ◽  
Vol 136 (10) ◽  
pp. 2139 ◽  
Author(s):  
Lingzhi Liu ◽  
Xiaohu Dong ◽  
Yan Xiao ◽  
Wenlong Lian ◽  
Zhihong Liu

RSC Advances ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 6131-6131
Author(s):  
Aamir A. Khan ◽  
Susan K. Fullerton-Shirey ◽  
Scott S. Howard

Correction for ‘Easily prepared ruthenium-complex nanomicelle probes for two-photon quantitative imaging of oxygen in aqueous media’ by Aamir A. Khan et al., RSC Adv., 2015, 5, 291–300.


Nanoscale ◽  
2014 ◽  
Vol 6 (17) ◽  
pp. 10413-10422 ◽  
Author(s):  
Jelena Dimitrijevic ◽  
Lisa Krapf ◽  
Christopher Wolter ◽  
Christian Schmidtke ◽  
Jan-Philip Merkl ◽  
...  

CdSe/CdS-Quantum-dots-quantum-rods are encapsulated by PI-b-PEG shells and transferred into various aqueous media to study their stability and performance as probes for two-photon laser scanning microscopy.


2015 ◽  
Vol 51 (85) ◽  
pp. 15570-15573 ◽  
Author(s):  
Subhamay Pramanik ◽  
Vandana Bhalla ◽  
Hwan Myung Kim ◽  
Hardev Singh ◽  
Hyo Won Lee ◽  
...  

AIEE active HPB based TPE probe exhibited modulation of self-assembled architecture in presence of H2S and was utilized for TPM imaging for detection of H2S in HeLa cells.


2016 ◽  
Vol 20 (08n11) ◽  
pp. 1002-1015 ◽  
Author(s):  
Claude P. Gros ◽  
Clément Michelin ◽  
Griet Depotter ◽  
Nicolas Desbois ◽  
Koen Clays ◽  
...  

Three zwitterionic meso-substituted A3B- and AB2C-porphyrins containing one sulfonato alkylpyridinium substituent and three or two alkoxy-substituted phenyl groups were synthesized in good yield and fully characterized as to their physicochemical properties by a variety of techniques. This new series of inner salt donor-acceptor meso-substituted porphyrin derivatives were prepared for possible application as amphiphilic probes for membrane insertion in the area of combined second-harmonic and two-photon fluorescence cellular microscopy. To this end, the linear and nonlinear optical properties of the compounds were characterized, together with their electrochemical and spectroelectrochemical properties in non-aqueous media. The neutral design of such molecules enabled us to determine their second order non-linear properties, both by Electric Field Induced Second Harmonic Generation and Hyper–Rayleigh Scattering. Two-photon absorption cross sections of these dyes were also measured by the two-photon induced fluorescence method. The zwitterionic nature of the inner salt results in very specific solvent-dependent redox-properties, which could be rationalized in terms of solvent-dependent ion-pairing. The overall data electrochemical and photophysical data indicates that these new porphyrinic systems should be good probes for membrane potential sensing.


2004 ◽  
Vol 845 ◽  
Author(s):  
Koichi Baba ◽  
Tymish Y. Ohulchanskyy ◽  
Qingdong Zheng ◽  
Tzu-Chau Lin ◽  
Earl J. Bergey ◽  
...  

ABSTRACTNear infrared fluorescent dyes have a significant potential in biological applications. However, many of these organic dyes are hydrophobic and/or their fluorescence is quenched in aqueous media. Nanoparticle technology has been utilized to overcome the hydrophobic property of these dyes, but there remain problems in their fabrication. To overcome these problems, a novel fabrication technique for incorporating hydrophobic dyes in a biodegradable polymer nanoparticle has been developed. An infrared emitting dye (D1) and a two photon excitable fluorescent dye (BT101) were selected as prototypic dyes for incorporation. The D1 nanocrystal dye shows quenched emission in aqueous media. Upon encapsulation in a polymeric nanoparticle, its emission at 1.1 to 1.35 μm was recovered. BT101 dye doped nanoparticles demonstrated significant increase in fluorescent yield in aqueous media as compared to the free dye. In addition, several different sizes of BT101 doped polymer nanoparticles were fabricated (c.a. 35 nm to 100 nm in size). The fluorescence intensity was found to increase with the particle size. The investigation of uptake of BT101 nanocrystal and BT101 doped PLGA nanoparticles by culture cells revealed the importance of polymer coating of dye for efficient cell imaging.


2019 ◽  
Vol 11 (18) ◽  
pp. 2415-2421 ◽  
Author(s):  
Ejaj Ahmmed ◽  
Somenath Lohar ◽  
Sumanta Ghatak ◽  
Sumit Kumar Hira ◽  
Partha Pratim Manna ◽  
...  

A new structurally characterised non-fluorescent non-cytotoxic probe (LH) selectively senses trace level hypochlorite ions in aqueous medium at pH 7.4 by turn-on ICT based fluorescence through thioacetyl cleavage applicable in bioimaging.


2015 ◽  
Vol 6 (7) ◽  
pp. 4335-4342 ◽  
Author(s):  
Subhankar Singha ◽  
Dokyoung Kim ◽  
Basab Roy ◽  
Sunderraman Sambasivan ◽  
Hyunsoo Moon ◽  
...  

Structural factors governing the poor emission of dipolar dyes in aqueous media are identified, leading to new acedan derivatives with brighter fluorescence and enhanced two-photon properties.


2020 ◽  
Vol 8 (7) ◽  
pp. 1422-1431 ◽  
Author(s):  
Yu-Jia Fu ◽  
San-San Shen ◽  
Xiao-Feng Guo ◽  
Hong Wang

A water-soluble fluorescent probe based on SiNDs for H2S detection can be used in both fully aqueous media and living cells.


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