What's the difference between alum and cation?

Alum


Definition:

  • (n.) A double sulphate formed of aluminium and some other element (esp. an alkali metal) or of aluminium. It has twenty-four molecules of water of crystallization.
  • (v. t.) To steep in, or otherwise impregnate with, a solution of alum; to treat with alum.

Example Sentences:

  • (1) Although alum adsorbed allergen could induce IgE synthesis in mice primed with liposome entrapped allergen the increase in serum specific IgE levels was lower than the animals primed and challenged with alum adsorbed allergen.
  • (2) Effective adjuvanticity as measured by the titre of the anti-peptide or anti-protein response in mice varied in the order: Algammulin, Montanide ISA 50 greater than or equal to Freund's adjuvant, Montanide ISA 708, 721, 70 much greater than alum, Squalene Arlacel greater than SAF-1.
  • (3) IgE levels in nude mice were estimated by the one-step single radial radiodiffusion method antisera prepared by immunization of guinea pigs with an IgE-rich fraction obtained from sera of normal mice infected with Nippostrongylus brasiliensis and immunized with DNP-ovalbumin in alum gel.
  • (4) Over 90% of the anti-OVA antibodies were of the IgGl isotype with both adjuvants; OVA in alum induced slightly more IgGl anti-OVA antibodies than cFA.
  • (5) Sections are brought to water, stained in Delafield's alum hematoxylin for 10 minutes, washed in tap water for 10 minutes, counterstained in 1% Procion brillant orange M-GS for 15 minutes and washed in distilled water for 10 minutes.
  • (6) The antibody responses of animals immunised with keyhole limpet hemocyanin (KLH) in Freund's Incomplete Adjuvant (FIA), diethylaminoethyl dextran (DEAE-dextran) and aluminium hydroxide (alum) were compared with the response to antigen administered in the absence of adjuvants.
  • (7) Wash thoroughly in water and place in 4% iron alum solution for two hours.
  • (8) The stability of ragweed extracts as measured by Antigen E content is markedly enhanced with little loss after 15 month storage at 4 degrees C, when the extract is prepared as an alum precipitated suspension.
  • (9) The choice of the carrier seemed to play an important role for both the level and maintenance of the secondary IgG response, attained as a consequence of a booster immunization with TT-alum.
  • (10) Six commercially available clostridial vaccines comprising one oil-emulsion, two alum-precipitated and three aluminum hydroxide adjuvanted preparations, each containing between two and seven antigenic components, were administered to groups of 10 rabbits and eight sheep in accordance with manufacturers' recommendations.
  • (11) So those undesirable gastric mucosa side effects that can be observed or presumed by the intake of NaF and CaF2 + alum are presumably neglibile.
  • (12) We reported previously that CBA mice pretreated with dinitrophenyl-Bordetella pertussis (DNP-BP) conjugates exhibited sharply decreased anti-DNP IgE, and increased IgG2a antibodies following immunization with DNP-ovalbumin (DNP-OA) in alum.
  • (13) An experimental review of the Feulgen and gallocyanine-chrome-alum stains for quantitative cytophotometry of DNA in tissue sections yielded information on the preparation and staining of tissue for quantitative absorbance microspectrophotometry.
  • (14) Alum, due to its safety and efficacy remains the drug of first choice for persistent vesical hematuria.
  • (15) Antibodies to the preparation were induced in rabbits by using alum as an adjuvant.
  • (16) Prior inoculation of mice with alum-adsorbed anti-idiotype potentiated the immune response to a subsequent inoculation with either native HBsAg particles or with a synthetic HBsAg peptide.
  • (17) Genetically modified M (pre-S2+S; P31) protein (M-P31c) particles were formulated into a vaccine (TGP-943) through adsorption on to an alum adjuvant.
  • (18) Sequential treatment with 5 X Denhardt's solution followed by gelatin-chrome alum resulted in enhanced specificity of labelling and excellent chromosome morphology, as well as reduced levels of background.
  • (19) Despite positive staining reactions with the presumptive neurosecretory stains, paraldehyde-fuchsin and chrome-alum-hematoxylin, ultrastructurally these glands exhibit many non-neural characteristics.
  • (20) Primary immunization with alum prepared using AlK(SO4)2 and adjuvant enhanced IgE production in the guinea pig.

Cation


Definition:

  • (n.) An electro-positive substance, which in electro-decomposition is evolved at the cathode; -- opposed to anion.

Example Sentences:

  • (1) The actions of the polyvalent cationic dye Ruthenium Red and the enzyme neuraminidase were studied at the frog neuromuscular junction.
  • (2) Interaction of viable macrophages with cationic particles at 37 degrees C resulted in their "internalization" within vesicles and coated pits and a closer apposition between many segments of plasmalemma than with neutral or anionic substances.
  • (3) On the other hand, the hydrophilic reagents, 1-ethyl-3-[3-(dimethylamino)-propyl]carbodiimide and N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline, did not affect organic cation transport.
  • (4) Kup is a separate K+ uptake system with relatively little discrimination in the transport of the cations K+, Rb+, and Cs+.
  • (5) To selectively stain polyanionic macromolecules of growth plate cartilage and to prevent artifacts induced by aqueous fixation, proximal tibial growth plates were excised from rats, slam-frozen, and freeze-substituted in 100% methanol containing the cationic dye Alcian blue.
  • (6) In general, enzyme activity was strongly reduced by heavy metal inorganic cations; less strongly by organometallic cations, some anions, and certain pesticides; and weakly inhibited by light metal cations and organometallic and organic compounds.
  • (7) Conflicting reports exist on the postprandial response of serum cationic trypsin like immunoreactivity (SCTLI).
  • (8) Frequent measurement of serum cation and appropriate replacement are recommended when high dose Cisplatin containing regimen is used in chemotherapy of neoplasms.
  • (9) Binding is inhibited by divalent and trivalent cations (Cd2+ and La3+ being most potent) and other calcium channel drugs (1,4 dihydropyridines, phenylalkylamines, benzothiazepines).
  • (10) The planar 7H-pyridocarbazole cations form stacks approximately parallel to b. Interactions between stacks occur by weak van der Waals forces.
  • (11) Bio-Rex 70, a carboxylic acid cation exchanger, is studied as a biological ion-exchanger resin model for cellular cytoplasm.
  • (12) 45Calcium has been used to compare the kinetics for the transport and bioaccumulation of this regulatory cation in keratinocyte cultures of a kindred with HPS (i.e., one HPS homozygote, one HPS obligate heterozygote, one normal family member, and healthy adult controls).
  • (13) Although GTP most potently inhibited [125I]beta h-endorphin binding in the presence of sodium, inhibition of [125I]beta h-endorphin binding by GTP was also observed in the presence of the monovalent cations lithium and potassium, but not the divalent cations magnesium, calcium, or manganese.
  • (14) The fungicidal activity of six rabbit neutrophil cationic peptides (NP) against resting (dormant) spores, preincubated (swollen) spores, and hyphae of Aspergillus fumigatus and Rhizopus oryzae was examined.
  • (15) No significant relationship was found between these urinary cations and blood pressure.
  • (16) Cation concentrations were determined in a stratified subsample (n = 89) of the study group.
  • (17) The cation leak identified in this manner is not prelytic, and it is fully reversible.
  • (18) Na+ could not be replaced for growth by any other cations or substances.
  • (19) When the concentration of Ca2+ in the medium was raised to 10 mM was the only extracellular divalent cation present, the depolarization in response to A23187 was increased to 11-8 mV.
  • (20) Mn2+ had dual effects, stimulating the ECP release in the absence of Mg2+ and Ca2+, and inhibiting the release in the presence of these cations.