Interaction of metal particles with adsorbed dye molecules: absorption and luminescence

1980 ◽  
Vol 5 (9) ◽  
pp. 368 ◽  
Author(s):  
A. M. Glass ◽  
P. F. Liao ◽  
J. G. Bergman ◽  
D. H. Olson
Keyword(s):  
Metal Particles ◽  
Dye Molecules ◽  
Adsorbed Dye Molecules

Adsorption and degradation of synthetic dyes on the mycelium of Trametes versicolor

1998 ◽  
Vol 38 (4-5) ◽  
pp. 233-238 ◽  
Author(s):  
Yuxin Wang ◽  
Jian Yu
Keyword(s):  
Adsorption Capacity ◽  
Trametes Versicolor ◽  
White Rot ◽  
White Rot Fungus ◽  
Fungal Mycelium ◽  
Maximum Adsorption Capacity ◽  
Synthetic Dyes ◽  
Dye Molecules ◽  
Adsorption Affinity ◽  
Adsorbed Dye Molecules

Adsorption and degradation of three synthetic dyes with representative chromophores (azo, anthraquinone and indigo) were investigated on living mycelium of white rot fungus, Trametes versicolor. The maximum adsorption capacity (Qmax) and adsorption affinity (K) of the dead and living fungal mycelia to the three dyes were measured and estimated by using the Langmuir model; Qmax has a range from 50 to 105 mg dye/g dry mycelium and K from 17 to 120 mg dye/L. The adsorbed dye molecules could be degraded by the extracellular and/or intracellular enzymes that were produced by a 10-day old fungal mycelium after the essential nitrogen nutrient (NH4+) had been consumed completely. Fungal mycelium was saturated by the dyes in one hour and its adsorption capacity was regenerated at different rates depending on dye structure and enzymes. Compared to the enzymatic regeneration of dye-saturated living mycelium (8-19 mg dye/g dry mycelium. h), physical desorption of adsorbed dye molecules was consistent ranging from 2-3 mg dye/g dry mycelium. h.

scholarly journals Studies of Molecular Adsorbates at Interfaces by Optical Second-Harmonic Generation

1983 ◽  
Vol 3 (1-6) ◽  
pp. 279-292 ◽  
Author(s):  
H. W. K. Tom ◽  
T. F. Heinz ◽  
Y. R. Shen
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Dye Molecules ◽  
Molecular Adsorbates ◽  
Nitrobenzoic Acid ◽  
Optical Second Harmonic Generation ◽  
Fused Quartz ◽  
Adsorbed Dye Molecules ◽  
Quartz Substrates

Optical second-harmonic generation (SHG) is surface-specific and has the sensitivity to detect submonolayers of molecules. It can be applied to study molecular adsorbates at the interface between any two centrosymmetric media. This has been demonstrated by using dye and p-nitrobenzoic acid (PNBA) molecules adsorbed on smooth fused quartz substrates as examples. With resonant SHG, the S0 → S2 transition of the adsorbed dye molecules was measured. From the polarization dependence of the SHG, the orientation of PNBA at both the air/quartz and the ethanol/quartz interfaces was deduced. By varying the concentration of PNBA in ethanol, an adsorption isotherm for PNBA at the ethanol/quartz interfaces was also obtained.

Radiation pattern of fluorescence from surface adsorbed dye molecules

1991 ◽  
Vol 48-49 ◽  
pp. 863-866 ◽  
Author(s):  
H. Sano ◽  
G. Mizutani ◽  
S. Ushioda
Keyword(s):  
Radiation Pattern ◽  
Dye Molecules ◽  
Adsorbed Dye Molecules

Sensitized anti-Stokes luminescence centers in microcrystals of Zn0.6Cd0.4S solid solutions with adsorbed dye molecules and few-atomic silver clusters

2008 ◽  
Vol 51 (3) ◽  
pp. 244-250
Author(s):  
O. V. Ovchinnikov ◽  
E. A. Kosyakova ◽  
L. Yu. Leonova ◽  
M. S. Smirnov ◽  
A. B. Evlev ◽  
...  
Keyword(s):  
Solid Solutions ◽  
Silver Clusters ◽  
Dye Molecules ◽  
Luminescence Centers ◽  
Atomic Silver ◽  
Adsorbed Dye Molecules ◽  
Anti Stokes

Fluorescence Decay of Adsorbed Dye Molecules on Solid Surfaces

1984 ◽  
Vol 85 (1) ◽  
pp. K73-K76 ◽  
Author(s):  
V. A. Bespalov ◽  
V. F. Kiselev ◽  
G. S. Plotnikov ◽  
A. M. Saletskii
Keyword(s):  
Fluorescence Decay ◽  
Solid Surfaces ◽  
Dye Molecules ◽  
Adsorbed Dye Molecules
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