Comment on ‘‘In situ photoluminescence spectral study of porous Si in HF aqueous solution’’ [Appl. Phys. Lett. 65, 1653 (1994)]

1995 ◽  
Vol 66 (21) ◽  
pp. 2912-2913 ◽  
Author(s):  
M. Davison ◽  
K. P. O’Donnell ◽  
U. M. Noor ◽  
D. Uttamchandani ◽  
L. E. A. Berlouis
Keyword(s):  
Aqueous Solution ◽  
Spectral Study ◽  
Porous Si

In situphotoluminescence spectral study of porous Si in HF aqueous solution

1994 ◽  
Vol 65 (13) ◽  
pp. 1653-1655 ◽  
Author(s):  
T. Wadayama ◽  
S. Yamamoto ◽  
A. Hatta
Keyword(s):  
Aqueous Solution ◽  
Spectral Study ◽  
Porous Si

scholarly journals Radiation-initiated high strength chitosan/lithium sulfonate double network hydrogel/aerogel with porosity and stability for efficient CO2 capture

RSC Advances ◽  
2021 ◽  
Vol 11 (33) ◽  
pp. 20486-20497
Author(s):  
Zhiyan Liu ◽  
Rui Ma ◽  
Wenjie Du ◽  
Gang Yang ◽  
Tao Chen
Keyword(s):  
Aqueous Solution ◽  
High Strength ◽  
Beam Radiation ◽  
Chitosan Hydrogel ◽  
Double Network ◽  
Electron Beam Radiation ◽  
Freeze Dried ◽  
Urea Aqueous Solution ◽  
Capture Capacity

Chitosan hydrogel is regenerated from alkali/urea aqueous solution and the lithium sulfonate second network is introduced by electron beam radiation-initiated in situ free radical polymerization. The freeze-dried aerogel has CO2 capture capacity.

Fabrication of monodisperse polypyrrole/SBA-15 composite for the selective removal of Cr(Ⅵ) from aqueous solutions

2021 ◽  
Author(s):  
Liang Wang ◽  
Peng Gao ◽  
Mengxin Liu ◽  
Ziqing Huang ◽  
Shixia Lan ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Adsorption Process ◽  
In Situ Polymerization ◽  
Selective Removal ◽  
Factors Affecting

Monodisperse polypyrrole/SBA-15 composite (PPy/SBA-15) was fabricated by in-situ polymerization and used for Cr(Ⅵ) adsorption from aqueous solution. PPy/SBA-15 was characterized by numerous approaches. Factors affecting the Cr(Ⅵ) adsorption process included...

Three-Dimensional Porous Si and SiO2 with In Situ Decorated Carbon Nanotubes As Anode Materials for Li-ion Batteries

2017 ◽  
Vol 9 (21) ◽  
pp. 17807-17813 ◽  
Author(s):  
Junming Su ◽  
Jiayue Zhao ◽  
Liangyu Li ◽  
Congcong Zhang ◽  
Chunguang Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Anode Materials ◽  
Three Dimensional ◽  
Li Ion Batteries ◽  
Porous Si ◽  
Li Ion

The Conversion of Methyl-2-Acetoxyethyl-2′-Chloroethylamine to an Acetylcholine-Like Aziridinium Ion and its Action on the Isolated Guinea Pig Ileum

1972 ◽  
Vol 50 (8) ◽  
pp. 798-808 ◽  
Author(s):  
M. Hirst ◽  
C. H. Jackson
Keyword(s):  
Aqueous Solution ◽  
Guinea Pig ◽  
Muscle Tone ◽  
Recovery Period ◽  
Induced Responses ◽  
Agonist Activity ◽  
Guinea Pig Ileum ◽  
Aziridinium Ion ◽  
Treatment Responses

Methyl-2-acetoxyethyl-2′-chloroethylamine (acetyicholine-mustard) isomerizes in aqueous solution to form a cyclic ion, N-methyl-N-(2-acetoxyethyl)aziridinium, which structurally resembles acetylcholine. It is a potent stimulant of the guinea pig ileum, being approximately one-sixth as potent as acetylcholine at pH 7.4 and one-third as potent at pH 8.4. The agonist activity is inhibited by atropine, by preincubation with acetylcholinesterase, and pretreatment with thiosulfate ion. Mepyramine does not inhibit the stimulant action.One hour exposures of ileum segments to concentrations of acetylcholine-mustard in excess of those producing maximal responses, followed by a 1 h recovery period, did not produce evidence of postsynaptic receptor alkylation. Post-treatment responses to acetylcholine were slightly depressed, but these reductions were not related to the incubation concentrations of the agonist haloalkylamine. Pilocarpine-induced responses were unaltered by this treatment whereas 5-hydroxytryptamine responses were slightly potentiated and histamine responses were slightly and inconsistently modified.These treatments produced persistent, dose-related increases in muscle tone, an effect consistent with accumulations of spontaneously liberated acetylcholine and possibly caused by inhibition of in situ acetylcholinesterase.Ostensibly, the evidence suggests that the acetylcholine-like aziridinium ion can stimulate, but not inhibit, the muscarinic receptors of the guinea pig ileum.

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