Revisiting Background Signals and the Electrochemical Windows of Au, Pt, and GC Electrodes in Biological Buffers

2019 ◽  
Vol 2 (9) ◽  
pp. 6808-6816 ◽  
Author(s):  
Bo-Chang Lai ◽  
Jhih-Guang Wu ◽  
Shyh-Chyang Luo
Keyword(s):  
Biological Buffers

scholarly journals Rapid Dissolution of ZnO Nanoparticles Induced by Biological Buffers Significantly Impacts Cytotoxicity

2017 ◽  
Vol 30 (8) ◽  
pp. 1641-1651 ◽  
Author(s):  
Josh E. Eixenberger ◽  
Catherine B. Anders ◽  
Rebecca J. Hermann ◽  
Raquel J. Brown ◽  
Kongara M. Reddy ◽  
...  
Keyword(s):  
Zno Nanoparticles ◽  
Rapid Dissolution ◽  
Biological Buffers

The effects of biological buffers TRIS, TAPS, TES on the stability of lysozyme

2018 ◽  
Vol 112 ◽  
pp. 720-727 ◽  
Author(s):  
Pavani Pannuru ◽  
Anjeeta Rani ◽  
Pannuru Venkatesu ◽  
Ming-Jer Lee
Keyword(s):  
The Stability ◽  
Biological Buffers

scholarly journals Sonication-enabled rapid production of stable liquid metal nanoparticles grafted with poly(1-octadecene-alt-maleic anhydride) in aqueous solutions

Nanoscale ◽  
2018 ◽  
Vol 10 (42) ◽  
pp. 19871-19878 ◽  
Author(s):  
Yiliang Lin ◽  
Jan Genzer ◽  
Weihua Li ◽  
Ruirui Qiao ◽  
Michael D. Dickey ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Liquid Metal ◽  
Aqueous Solutions ◽  
Metal Nanoparticles ◽  
Rapid Production ◽  
Biological Buffers

We demonstrate sonication-enabled production of liquid metal nanoparticles grafted with poly(1-octadecene-alt-maleic anhydride) in water that remain stable in biological buffers.

scholarly journals Comparison of zwitterionic N-alkylaminomethanesulfonic acids to related compounds in the Good buffer series

2010 ◽  
Vol 6 ◽  
Author(s):  
Robert D Long ◽  
Newton P Hilliard ◽  
Suneel A Chhatre ◽  
Tatiana V Timofeeva ◽  
Andrey A Yakovenko ◽  
...  
Keyword(s):  
Sulfonic Acid ◽  
Aqueous Solubility ◽  
Carbon Chain ◽  
Secondary Amines ◽  
Ammonium Ion ◽  
X Ray ◽  
Crystallographic Structures ◽  
Related Compounds ◽  
Sulfonic Acid Groups ◽  
Biological Buffers

Several N-alkyl and N,N-dialkylaminomethanesulfonic acids were synthesized (as zwitterions and/or sodium salts) to be tested for utility as biological buffers at lower pH levels than existing Good buffer compounds (aminoalkanesulfonates with a minimum of two carbons between amine and sulfonic acid groups as originally described by Norman Good, and in common use as biological buffers). Our hypothesis was that a shorter carbon chain (one carbon) between the amino and sulfonic acid groups should lower the ammonium ion pK a values. The alkylaminomethanesulfonate compounds were synthesized in aqueous solution by reaction of primary or secondary amines with formaldehyde/sodium hydrogensulfite addition compound. The pK a values of the ammonium ions of this series of compounds (compared to existing Good buffers) was found to correlate well with the length of the carbon chain between the amino and sulfonate moeties, with a significant decrease in amine basicity in the aminomethanesulfonate compounds (pK a decrease of 2 units or more compared to existing Good buffers). An exception was found for the 2-hydroxypiperazine series which shows only a small pK a decrease, probably due to the site of protonation in this compound (as confirmed by X-ray crystal structure). X-ray crystallographic structures of two members of the series are reported. Several of these compounds have pK a values that would indicate potential utility for buffering at pH levels below the normal physiological range (pK a values in the range of 3 to 6 without aqueous solubility problems) – a range that is problematic for currently available Good buffers. Unfortunately, the alkylaminomethanesulfonates were found to degrade (with loss of their buffering ability) at pH levels below the pK a value and were unstable at elevated temperature (as when autoclaving) – thus limiting their utility.

scholarly journals Synthesis of Gold Nanoparticles with Buffer-Dependent Variations of Size and Morphology in Biological Buffers

2016 ◽  
Vol 11 (1) ◽  
Author(s):  
Syed Rahin Ahmed ◽  
Sangjin Oh ◽  
Rina Baba ◽  
Hongjian Zhou ◽  
Sungu Hwang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Size And Morphology ◽  
Biological Buffers

Binding thermodynamics of divalent metal ions to several biological buffers

2020 ◽  
Vol 691 ◽  
pp. 178721
Author(s):  
Chang-Qing Xiao ◽  
Qing Huang ◽  
Yu Zhang ◽  
Hong-Quan Zhang ◽  
Lu Lai
Keyword(s):  
Metal Ions ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
Binding Thermodynamics ◽  
Biological Buffers

Inhibited fragmentation of mAbs in buffered ionic liquids

2015 ◽  
Vol 51 (38) ◽  
pp. 8089-8092 ◽  
Author(s):  
Romiza R. Mazid ◽  
R. Vijayaraghavan ◽  
Douglas R. MacFarlane ◽  
Christina Cortez-Jugo ◽  
Wenlong Cheng
Keyword(s):  
Ionic Liquids ◽  
Enzymatic Degradation ◽  
Next Generation ◽  
Biological Buffers

Choline-based buffered ionic liquids have been demonstrated to greatly inhibit enzymatic degradation of antibodies, and are promising as next-generation biological buffers.

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