The presence of aluminum atoms in place of silicon atoms in this structure creates negatively charged sites in the structural framework and gives chabazite its cation-exchange properties (dissolved sodium, potassium, magnesium, and calcium readily replacing each other in the interstices), which are important in water softeners.
Quartz tubes were cleaned by immersing them in the mixture of methanol and concentrated HCl (1 1) for 30 min and then in the piranha solution (70/30 v/v of concentrated H2SO4 and 30%H2O2O2) to create negatively charged surfaces for 24 h.
According to the OS model, the PC process includes four steps: (1) In the dark and in the atmospheric ambience, as oxygen plays a role of electron trap state in the metal oxide semiconductor surface, through oxygen adsorption, the electron is captured on the surface and creates negatively charged surface states (or oxygen ions) [O2(g) + e- → O2- ad)].
Removal of methyl-esters from the pectic galacturonic acid residues by pectin methyl-esterase (PME) [ 8] creates negatively charged regions of the homogalacturonan (HG) backbone.
Anionic surfactants (e.g., sodium dodecylsulfate [SDS] and sodium dioctyl sulfosuccinate or [AOT]) form large micelles 68 and create negatively charged interfaces causing metals to bind to reversed micelles and increase the oxidation rates in o/w 14, 33 but showed no effects on oxidation in lipophilic substrates (e.g., limonene) 86.
In fact, upon adding the surfactant, some ALES molecules are adsorbed on the surface of the particles creating a negatively supercharged system (Table 2), through increasing the effective charge on silica surface, which creates high repulsion forces among the silica particles, hence decreasing the agglomeration of the particles.
Create negatively weighted links, with weight -0.2, between each pair of distinct map nodes which share a proposition, predicate, or simple argument as one component of the mapping.
Over time this biased input causes the automatic processing of affective information to be shifted more negatively, creating stable self-reinforcing negative schemata.
PolySia expression on mDCs could thus create a negatively charged capture mechanism to efficiently promote CCL21-directed migration.
This autopoly(ADP-ribosyl)ation creates a negatively charged target at the SSB, which recruits the enzymes required to form the base excision repair multi-protein complex [ 16, 17].
