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10.1016/j.colcom.2020.100356 http://scihub22266oqcxt.onion/10.1016/j.colcom.2020.100356 33520676!7833638!33520676     free     free     free Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Colloid+Interface+Sci+Commun 2021 ; 40 (ä): 100356 Nephropedia Template TP {{tp|p=33520676|t=2021. Spectroscopic investigation on the affinity of SARS-CoV-2 spike protein to gold nano-particles |pdf=|usr=}}{{33520676}} gab.com Text Spectroscopic investigation on the affinity of SARS-CoV-2 spike protein to gold nano-particles JO: Colloid Interface Sci Commun http://www.kidney.de/pget.php?&tw=1&pmid=33520676 #FOAvip The affinity of the SARS-CoV-2 spike protein (S protein) to gold nano-particles was examined through spectral shifts of SPR (Surface Plasmon Resonance) band. Gold nano-colloidal particles are sensitive to the conformational change of the protein adsorbed over the particles' surface. As the pH value was gradually lowered from approximately neutral pH to an acidic pH (ca. pH 2), all mixtures of S protein with the gold colloids >/=30 nm in diameter exhibited a drastic red-shift of the average SPR band peak at one pH value more than that observed for bare gold colloids. The surface coverage fraction (Theta) of S protein over the nano-particle's surface was extracted and all showed relatively small coverage values (i.e., Theta ~ 0.30). The SPR band peak shift was also examined as the pH values were hopped between pH ~ 3 and pH ~ 10 (pH hopping). As the pH values hopped, an alternation of the average SPR band peaks were observed. A significant amplitude of an alternation was especially observed for the mixture of S protein with gold >/=30 nm of gold size implying the reproduction of pH induced reversible protein folding. We hypothesize that the pH hopping scheme captured a reversible transition between folded or Down conformation (pH >/= ~7) and unfolded or Up (pH ~ 3) conformation of RBD (receptor binding domain). The acidic condition may also dimerize the S protein through RBD. The Up conformation or dimerization of S protein are considered to be connected to the other gold nano particles forming gold nano-particle aggregates. Twit Text FOAVip Spectroscopic investigation on the affinity of SARS-CoV-2 spike protein to gold nano-particles ????Colloid Interface Sci Commun http://www.kidney.de/pget.php?&tw=1&pmid=33520676 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=33520676 #FOAvip English Wikipedia <ref>{{Cite pmid|33520676}}</ref> Spectroscopic investigation on the affinity of SARS-CoV-2 spike protein to gold nano-particles #MMPMID33520676 Yokoyama K; Ichiki A Colloid Interface Sci Commun 2021[Jan]; 40 (ä): 100356 PMID33520676show ga The affinity of the SARS-CoV-2 spike protein (S protein) to gold nano-particles was examined through spectral shifts of SPR (Surface Plasmon Resonance) band. Gold nano-colloidal particles are sensitive to the conformational change of the protein adsorbed over the particles' surface. As the pH value was gradually lowered from approximately neutral pH to an acidic pH (ca. pH 2), all mixtures of S protein with the gold colloids >/=30 nm in diameter exhibited a drastic red-shift of the average SPR band peak at one pH value more than that observed for bare gold colloids. The surface coverage fraction (Theta) of S protein over the nano-particle's surface was extracted and all showed relatively small coverage values (i.e., Theta ~ 0.30). The SPR band peak shift was also examined as the pH values were hopped between pH ~ 3 and pH ~ 10 (pH hopping). As the pH values hopped, an alternation of the average SPR band peaks were observed. A significant amplitude of an alternation was especially observed for the mixture of S protein with gold >/=30 nm of gold size implying the reproduction of pH induced reversible protein folding. We hypothesize that the pH hopping scheme captured a reversible transition between folded or Down conformation (pH >/= ~7) and unfolded or Up (pH ~ 3) conformation of RBD (receptor binding domain). The acidic condition may also dimerize the S protein through RBD. The Up conformation or dimerization of S protein are considered to be connected to the other gold nano particles forming gold nano-particle aggregates. äSpectroscopic investigation on the affinity of SARS-CoV-2 spike protei(epmc).pdf DeepDyve Pubget Overpricing