A perylene diimide-based near-IR ratiometric sensor for detection of Cu2+ ions: ensemble for discrimination of CN− and S2− ions

2020 ◽  
Vol 12 (6) ◽  
pp. 758-767 ◽  
Author(s):  
Poonam Sharma ◽  
Prabhpreet Singh
Keyword(s):  
Perylene Diimide ◽  
Near Ir ◽  
Ratiometric Sensor

We have designed a perylene diimide-based near-IR ratiometric chemosensor for detection of Cu2+ ions and this complex was explored as an ensemble for discrimination of CN− and S2− ions.

Self-assembled vesicle and rod-like aggregates of functionalized perylene diimide: reaction-based near-IR intracellular fluorescent probe for selective detection of palladium

2016 ◽  
Vol 4 (21) ◽  
pp. 3750-3759 ◽  
Author(s):  
Prabhpreet Singh ◽  
Lalit Singh Mittal ◽  
Vanita Vanita ◽  
Kapil Kumar ◽  
Amandeep Walia ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Hela Cells ◽  
Perylene Diimide ◽  
Selective Detection ◽  
Near Ir ◽  
Absorbance Changes ◽  
Self Assembled ◽  
Ratiometric Absorbance

Aggregates ofPS-PDIafter Pd0based depropargylation show de-aggregation and near-IR, ratiometric absorbance changes in water and live HeLa cells.

Multifunctional metallo-supramolecular interlocked hexagonal microstructures for the detection of lead and thiols in water

2018 ◽  
Vol 54 (68) ◽  
pp. 9482-9485 ◽  
Author(s):  
Prabhpreet Singh ◽  
Lalit Singh Mittal ◽  
Kapil Kumar ◽  
Poonam Sharma ◽  
Gaurav Bhargava ◽  
...  
Keyword(s):  
Self Assembly ◽  
Perylene Diimide ◽  
Near Ir ◽  
Ir Detection

We report metallo-supramolecular interlocked hexagonal self-assembly associated with the near-IR detection of Pb2+ ions and thiols in water using a perylene diimide probe.

scholarly journals Near-IR oxime-based solvatochromic perylene diimide probe as a chemosensor for Pd species and Cu2+ ions in water and live cells

2020 ◽  
Vol 19 (4) ◽  
pp. 504-514 ◽  
Author(s):  
Poonam Sharma ◽  
Sandeep Kaur ◽  
Satwinderjeet Kaur ◽  
Prabhpreet Singh
Keyword(s):  
Perylene Diimide ◽  
Live Cells ◽  
Near Ir

A near-IR colorimetric and fluorescent perylene diimide probe for detection of Pd0 (7.9 × 10−8 M) and Cu2+ (3.4 × 10−7 M) in water and live cells with solvatochromic properties is designed and synthesized.

Surface Brightness Scale of Galactic Cepheids

1999 ◽  
Vol 190 ◽  
pp. 561-562
Author(s):  
G. P. Di Benedetto
Keyword(s):  
Surface Brightness ◽  
Variable Stars ◽  
Giant Stars ◽  
Near Ir

An accurate calibration of the surface brightness scaleSVas a function of the near-IR color (V–K) has been recently measured for non-variable Galactic dwarf and giant stars. It can be shown that this correlation can be applied to theSVscale of Galactic Cepheid variable stars, which are of major cosmological interest.

Plasmon-assisted interaction of Si with light, for cancer hyperthermia and electromagnetic energy harvest

2020 ◽  
Vol 92 (2) ◽  
pp. 20101
Author(s):  
Behnam Kheyraddini Mousavi ◽  
Morteza Rezaei Talarposhti ◽  
Farshid Karbassian ◽  
Arash Kheyraddini Mousavi
Keyword(s):  
Silicon Nanowires ◽  
Metallic Nanoparticles ◽  
Near Infrared ◽  
Optical Transition ◽  
Electromagnetic Energy ◽  
Energy Harvest ◽  
Absorption Enhancement ◽  
Ir Absorption ◽  
Absorption Mechanism ◽  
Near Ir

Metal-assisted chemical etching (MACE) is applied for fabrication of silicon nanowires (SiNWs). We have shown the effect of amorphous sheath of SiNWs by treating the nanowires with SF6 and the resulting reduction of absorption bandwidth, i.e. making SiNWs semi-transparent in near-infrared (IR). For the first time, by treating the fabricated SiNWs with copper containing HF∕H2O2∕H2O solution, we have generated crystalline nanowires with broader light absorption spectrum, up to λ = 1 μm. Both the absorption and photo-luminescence (PL) of the SiNWs are observed from visible to IR wavelengths. It is found that the SiNWs have PL at visible and near Infrared wavelengths, which may infer presence of mechanisms such as forbidden gap transitions other can involvement of plasmonic resonances. Non-radiative recombination of excitons is one of the reasons behind absorption of SiNWs. Also, on the dielectric metal interface, the absorption mechanism can be due to plasmonic dissipation or plasmon-assisted generation of excitons in the indirect band-gap material. Comparison between nanowires with and without metallic nanoparticles has revealed the effect of nanoparticles on absorption enhancement. The broader near IR absorption, paves the way for applications like hyperthermia of cancer while the optical transition in near IR also facilitates harvesting electromagnetic energy at a broad spectrum from visible to IR.

NEAR IR FARADAY ROTATION ON YIG DOPED WITH TETRAVALENT AND PENTAVALENT ELEMENTS

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-969-C8-970 ◽  
Author(s):  
F. D'Orazio ◽  
F. Giammaria ◽  
F. Lucari ◽  
G. Parone
Keyword(s):  
Faraday Rotation ◽  
Near Ir

Results of Spatial Structure of Atmosphere Radiation in a Spectral Range (1.5–2) µm Research

2018 ◽  
pp. 7-13
Author(s):  
Anton M. Mishchenko ◽  
Sergei S. Rachkovsky ◽  
Vladimir A. Smolin ◽  
Igor V . Yakimenko
Keyword(s):  
Spatial Structure ◽  
Unmanned Aerial Vehicle ◽  
Wavelength Range ◽  
Spectral Range ◽  
Near Ir ◽  
Optoelectronic Systems ◽  
Aerial Vehicle

Results of experimental studying radiation spatial structure of atmosphere background nonuniformities and of an unmanned aerial vehicle being the detection object are presented. The question on a possibility of its detection using optoelectronic systems against the background of a cloudy field in the near IR wavelength range is also considered.

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