Results 51 to 60 of about 273,352 (345)

Antibody-Capped Mesoporous Nanoscopic Materials:Design of a Probe for the Selective Chromo-FluorogenicDetection of Finasteride [PDF]

open access: yes, 2012
[EN] The synthesis of capped mesoporous silica nanoparticles (MSN) conjugated with an antibody (AB) as a gatekeeper has been carried out in order to obtain a delivery system able to release an entrapped cargo (dye) in the presence of a target molecule
Amoros del Toro, Pedro   +7 more
core   +2 more sources

Practical Broad-Band Tuning of Dye Lasers by Solvent Shifting [PDF]

open access: yes, 1986
We have operated a dye laser over a broad wavelength range (593.8-667.0nm) by shifting the dye emission profile with incremental changes of solvent composition. This was accomplished with the laser operating continuously, and only minor adjustment of the
Bird, George R.   +3 more
core   +1 more source

Occurrence and a possible mechanism of penetration of natural killer cells into k562 target cells during the cytotoxic interaction [PDF]

open access: yes, 1995
The cytotoxic interaction between cloned human Natural Killer (NK) cells and K562 target cells was studied using confocal laser scanning microscopy (CLSM) and conventional fluorescence microscopy.
de Grooth, B.G.   +6 more
core   +3 more sources

Recent Progress in Small Spirocyclic, Xanthene-Based Fluorescent Probes

open access: yesMolecules, 2020
The use of fluorescent probes in a multitude of applications is still an expanding field. This review covers the recent progress made in small molecular, spirocyclic xanthene-based probes containing different heteroatoms (e.g., oxygen, silicon, carbon ...
Sascha G. Keller   +2 more
doaj   +1 more source

A novel formulation of chitosan nanoparticles functionalized with titanium dioxide nanoparticles

open access: yesJournal of Advanced Pharmaceutical Technology & Research, 2021
Herein, chitosan nanoparticles (CS-NPs) were prepared and functionalized chemically with titanium dioxide nanoparticles (TiO2-NPs) to allow on-demand degradation of CS-NPs, using ultraviolet (UV) irradiation as a trigger.
Nusaiba Al-Nemrawi, Sukaina Nimrawi
doaj   +1 more source

Synthesis, resolution and crystal structures of two enantiomeric rhodamine derivatives

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2017
The title molecule, rac-6′-bromo-3′-diethylamino-3H-spiro[2-benzofuran-1,9′-xanthen]-3-one, C24H20BrNO3, was synthesized and the two enantiomers which formed were separated. The structures of all three compounds were determined and compared with those of
Clifton J. Stephenson   +6 more
doaj   +1 more source

Optical Spectral Study of Rhodamine Dyes Mixture Solution in Chloroform [PDF]

open access: yesEngineering and Technology Journal, 2013
The spectral properties (absorption and fluorescence) of laser dyes (Rhodamine6G, Rhodamine 3GO and Rhodamine B) mixture have been studied. This type of laser dye belongs to the Xanthenes family, it has dissolved in chloroform to prepare (1*10-5 M) in ...
Slafa Ismael Ibrahim   +1 more
doaj   +1 more source

Surface plasmon-mediated far-field emission of laser dye solutions

open access: yes, 2010
Angle-resolved reflection and emission spectra of metal gratings consisting of sub-wavelength grooves and immersed into rhodamine B and rhodamine 19 solutions are presented.
Fick, Jochen, Geiger, Carola
core   +3 more sources

A simplified protocol for detecting two systemic bait markers (Rhodamine B and iophenoxic acid) in small mammals [PDF]

open access: yes, 2003
We developed a method of quantifying levels of fluorescence in the whiskers of wild stoats (Mustela erminea) using fluorescence microscopy and Axiovision 3.0.6.1 software. The method allows for discrimination between natural fluorescence present in or on
Dawidowicz A. L.   +7 more
core   +2 more sources

MicroRNAs delivery into human cells grown on 3D-printed PLA scaffolds coated with a novel fluorescent PAMAM dendrimer for biomedical applications [PDF]

open access: yes, 2018
Many advanced synthetic, natural, degradable or non-degradable materials have been employed to create scaffolds for cell culture for biomedical or tissue engineering applications. One of the most versatile material is poly-lactide (PLA), commonly used as
Abbaszadeh, Zeinab   +7 more
core   +2 more sources

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