The Adsorption of Gelatin on Silver Bromide

Berendsen, R.; Borginon, H.

doi:10.1080/00223638.1968.11737461

Cited by 17 publications

(12 citation statements)

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“…From the results on the competitive adsorption of a cyanine dye, Curme and Natale113 concluded that gelatin adsorbs onto silver bromide particles and that maximum adsorption occurs around the IEP. The data on the heat of adsorption by Berendsen and Borginon114 indicated that the binding energy increases at pH values below the IEP and remains roughly constant above the IEP. The adsorption isotherms of gelatin on AgBr both above and below the IEP were measured by Kragh and Peacock 115.…”

Section: Polarization‐induced Attraction and Polyampholyte Adsorptionmentioning

confidence: 98%

Polyampholytes

Dobrynin

Colby

Rubinstein

2004

J Polym Sci B Polym Phys

308

373

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Polyampholytes are charged polymers with both positively and negatively charged groups. The conformation of these polymers in solutions strongly depends on the distribution of charged monomers along the polymer backbone and their environment. In this review we summarize the current level of understanding of such amphoteric polymers in solutions and their interactions with surfaces and polyelectrolytes. © 2004 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 42: 3513–3538, 2004

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Section: Polarization‐induced Attraction and Polyampholyte Adsorptionmentioning

confidence: 98%

Polyampholytes

Dobrynin

Colby

Rubinstein

2004

J Polym Sci B Polym Phys

308

373

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“…However, the adsorption properties of polyampholytes are fundamental to the understanding their technological utilizations. Many experimental studies have been made on the adsorption of gelatin, − especially onto the silver halide crystal surface, reflecting the practical interest in its photographic use. It was shown experimentally that the adsorption of gelatin on a charged surface occurs even when both the polymer and the surface have the same net (negative) charge .…”

Section: Introductionmentioning

confidence: 99%

Adsorption of a Polyampholyte Chain on a Charged Surface

1997

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We discuss the adsorption of a single polyampholyte chain with degree of polymerization N carrying Nf charges, (Nf + positive and Nf - negative charges) on a charged surface with σ charges per unit area. The adsorption is due to the electrostatic polarization of the polyampholyte chain, which acquires a dipole moment in the surface electric field. Symmetric Gaussian polyampholytes with equal numbers of positive and negative charges adsorb if the surface charge density σ is larger than (1/al B N)· (1/f 1/2) (l B is the Bjerrum length and a is the bond size). Polyampholyte chains carrying a charge of the same sign as the surface can also adsorb if the surface charge is large enough. For a typical asymmetry |f - − f +| ≈ (f/N)1/2, the adsorption threshold is σ > (1/al B N 3/4)(1/f 1/4). The effect of the added salt on the adsorption is considered. Finally, we determine the adsorption threshold of a collapsed polyampholyte globule.

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“…Truth be told, the settling properties of polyampholytes were perceived by Faraday over 150 years prior, where the solution of gold colloidal particles was stabilized by gelatin (a polypeptide protein). Toward the start of the twentieth century, this property of gelatin was effectively executed by the photographic business to balance out silver bromide sols [8][9][10]. Furthermore, the factor by which DNA interacts with histones and responsible for bundling DNA with chromosomes is the presence of the charged groups on the DNA molecule [11,12].…”

Section: Imentioning

confidence: 99%

A Review on Polyelectrolytes (PES) and Polyelectrolyte Complexes (PECs)

Bhattarai¹,

Ghimire²

2020

IJERT

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Polyelectrolytes are polymers of oppositely charged ions and their properties differ profoundly than their repeating units. Over recent years, much advancement has been made in the synthesis, characterization and application of polyelectrolytes and polyelectrolyte complexes (PECs). There are two kinds of PECs structure: ladder-like structure and scrambled egg model. There are number of elements that influence the synthesis and stability of PEC. Polyelectrolyte complexes are classified based on the type of macromolecules and bonds involved in complexation. It has many applications as flocculation agents, dispersant agents and super-plasticizers. This present article focuses mainly on the polyelectrolytes and polyelectrolyte complexes, their preparation and uses.

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The Adsorption of Gelatin on Silver Bromide

Cited by 17 publications

References 0 publications

Polyampholytes

Polyampholytes

Adsorption of a Polyampholyte Chain on a Charged Surface

A Review on Polyelectrolytes (PES) and Polyelectrolyte Complexes (PECs)

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