Sodium persulfate: A contact allergen present in hot tub shock treatment

2021 ◽  
Author(s):  
Connie S. Scoggins ◽  
Melodi J. Whitley ◽  
Amber R. Atwater

2008 ◽  
Vol 39 (2) ◽  
pp. 1-48
Author(s):  
DOUG BRUNK
Keyword(s):  


2011 ◽  
Vol 41 (6) ◽  
pp. 48
Author(s):  
DAMIAN McNAMARA


2014 ◽  
Vol 2 (2) ◽  
pp. 85-90
Author(s):  
Ryszard J. Mądry ◽  
Jerzy Strużyna ◽  
Sergey Antonov ◽  
Tomasz Korzeniowski ◽  
Magdalena Bugaj ◽  
...  


HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1091G-1091
Author(s):  
Anne K. Hurley ◽  
B. Greg Cobb

Cucumis sativus, L., `Poinsett' seedlings were grown under artificial light in 40% modified Hoagland's solution until an average plant plastochron index of 4.73 was reached. Plants were then placed in solutions of (1) 0 mM NaCl, (2) 80 mM NaCl (salt-shock), or (3) placed in a dropwise gradient solution of NaCl and Hoagland's until the final concentration of 80 mM NaCl was reached at 41 hours. Leaves of the 80 mM shock treatment wilted immediately, but recovered turgor within 6 hours. Leaves of 80 mM gradient did not wilt at anytime. The control and gradient treatments had relative growth rates which were similar to each other, but RGR decreased in the shock treatment. Invertase activity was measured in the roots at 24, 41, and 48 hours after initial treatment. Invertase activity of shock treatment increased significantly over the controls at 24 hours. The 80mM gradient was not significantly different than either treatment. Four isozymes of α– galactosidase were detected. The relative intensities of the bands varied with time and treatment. One invertase band was resolved in roots on 8% native acrylamide gels. SDS gels indicated increases in proteins in the gradient treatment compared to the control and the 80 mM shock treatment.



BMJ ◽  
1942 ◽  
Vol 2 (4265) ◽  
pp. 397-398
Keyword(s):  




Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1877
Author(s):  
Kai-Hung Yang ◽  
Gabriella Lindberg ◽  
Bram Soliman ◽  
Khoon Lim ◽  
Tim Woodfield ◽  
...  

Recent advances highlight the potential of photopolymerizable allylated gelatin (GelAGE) as a versatile hydrogel with highly tailorable properties. It is, however, unknown how different photoinitiating system affects the stability, gelation kinetics and curing depth of GelAGE. In this study, sol fraction, mass swelling ratio, mechanical properties, rheological properties, and curing depth were evaluated as a function of time with three photo-initiating systems: Irgacure 2959 (Ig2959; 320–500 nm), lithium phenyl-2,4,6-trimethylbenzoylphosphinate (LAP; 320–500 nm), and ruthenium/sodium persulfate (Ru/SPS; 400–500 nm). Results demonstrated that GelAGE precursory solutions mixed with either Ig2959 or LAP remained stable over time while the Ru/SPS system enabled the onset of controllable redox polymerization without irradiation during pre-incubation. Photo-polymerization using the Ru/SPS system was significantly faster (<5 s) compared to both Ig2959 (70 s) and LAP (50 s). Plus, The Ru/SPS system was capable of polymerizing a thick construct (8.88 ± 0.94 mm), while Ig2959 (1.62 ± 0.49 mm) initiated hydrogels displayed poor penetration depth with LAP (7.38 ± 2.13 mm) in between. These results thus support the use of the visible light based Ru/SPS photo-initiator for constructs requiring rapid gelation and a good curing depth while Ig2959 or LAP can be applied for photo-polymerization of GelAGE materials requiring long-term incubation prior to application if UV is not a concern.



1937 ◽  
Vol 37 (5) ◽  
pp. 494-498
Author(s):  
Joseph Wortis ◽  
Jeff Roberts


2021 ◽  
Vol 9 (2) ◽  
pp. 105071
Author(s):  
Paraskevi Ntzoufra ◽  
John Vakros ◽  
Zacharias Frontistis ◽  
Sotirios Tsatsos ◽  
Georgios Kyriakou ◽  
...  


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