Influence of Solute Properties on Release of p-Aminobenzoic Acid Esters from Silicone Rubber: Theoretical Considerations

Roseman, Theodore J.; Yalkowsky, Samuel H.

doi:10.1002/jps.2600631040

Cited by 12 publications

(5 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the T. Higuchi model can be extended to take into account the effects of diffusion across unstirred boundary layers (Roseman & Yalkowsky 1974, Ibrahim & Jibril 2005. The process of diffusion can be described if D e can be determined.…”

Section: Derivation Of Parametersmentioning

confidence: 99%

“…Meanwhile, this release system belongs to the matrixcontrolled release when b 2 K 2 ( at (Roseman & Yalkowsky 1974). Because of the high hydrophobicity and compactness of mixture matrix of paraffin wax and rosin, D s is far less than D a .…”

Section: Derivation Of Parametersmentioning

confidence: 99%

“…Slow-release inhibitors would be directly added in landfills, and there is no boundary perturbation in the process of releasing. Therefore, the T. Higuchi model can be extended to take into account the effects of diffusion across unstirred boundary layers (Roseman & Yalkowsky 1974, Ibrahim & Jibril 2005. When diffusion across unstirred boundary layers is considered, and when the total inhibitor concentration (A) is much greater than the solubility of the drug in the matrix (C), then the amount of drug release per unit surface area can be defined by the equation (Atterholt et al 1999):…”

Section: Derivation Of Parametersmentioning

confidence: 99%

“…Because of the high hydrophobicity and compactness of mixture matrix of paraffin wax and rosin, D s is far less than D a . Meanwhile, this release system belongs to the matrixcontrolled release when b 2 K 2 ( at (Roseman & Yalkowsky 1974). So, Equation (8) can be simplified as below:…”

Section: Derivation Of Parametersmentioning

confidence: 99%

See 3 more Smart Citations

Slow-release of methanogenic inhibitors derived from encapsulated calcium carbide using paraffin wax and/or rosin: matrix optimization and diffusion characteristics

Zhao

Zhang

et al. 2010

Waste Manag Res

View full text Add to dashboard Cite

Acetylene has been found to significantly inhibit biological activity of methanogens and thus might be applicable for reducing the generation and emission of methane from municipal solid waste landfills. However, acetylene is gaseous and so it is considered physically infeasible to directly apply this gas to waste in landfill conditions. In the present study, a novel acetylene release mechanism was tested, using a matrix of acetylene entrapped in high hydrophobic paraffin wax and/or rosin and calcium carbide capsules with a ratio of 1.0 g g(-1) matrix and a diameter of 10 mm to facilitate the gradual release of acetylene. A diffusion mechanism model (Q = &b.gamma; × t (0.5)) for the matrix was derived based on the T. Higuchi equation, and the effective diffusion coefficients (D(e)) were acquired by linear fitting. Additionally, it was found that D(e) remained constant when the rosin content was up to more than 20% g g(-1) matrix.

show abstract

Section: Derivation Of Parametersmentioning

confidence: 99%

Section: Derivation Of Parametersmentioning

confidence: 99%

Section: Derivation Of Parametersmentioning

confidence: 99%

Section: Derivation Of Parametersmentioning

confidence: 99%

See 2 more Smart Citations

Slow-release of methanogenic inhibitors derived from encapsulated calcium carbide using paraffin wax and/or rosin: matrix optimization and diffusion characteristics

Zhao

Zhang

et al. 2010

Waste Manag Res

View full text Add to dashboard Cite

show abstract

“…One explanation for this persistence could be that the disparlure molecule is relatively large (MW = 282.504 g/mol) with a 19C chain, which is longer than the chains of pheromones in the majority of insects managed using mating disruption [ 20 ]. Therefore, disparlure exhibits zero-order release for longer time [ 23 ] and has a higher partitioning coefficient compared to some of the other synthetic pheromones, which leads to creation of significant persistent or “ghost” effect [ 24 ]. This is also supported by reports on long-term absorption and re-emission of disparlure from human tissues [ 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Efficacies and Second-Year Effects of SPLAT GM™ and SPLAT GM™ Organic Formulations

Onufrieva

Hickman

Leonard

et al. 2014

Insects

View full text Add to dashboard Cite

Mating disruption is the primary control tactic used against the gypsy moth, Lymantria dispar (L.) (Lepidoptera: Lymantriidae) under the gypsy moth Slow the Spread (STS) program. In this paper, we present the results of the multiyear study designed to evaluate a new liquid SPLAT GM™ (ISCA Tech, Riverside, CA, USA) Organic formulation, which is approved by the USDA to meet National Organic Program Standards for use in organic certified farms, for its ability to disrupt gypsy moth mating, and to evaluate the environmental persistence of SPLAT GM™ and SPLAT GM™ Organic formulations. Environmental persistence of the pheromone beyond the year of application is a significant concern since STS relies on trap catch data to evaluate treatment success. The study was conducted in 2007–2012 in forested areas in Virginia and Wisconsin, USA. We observed that SPLAT GM™ Organic reduced gypsy moth trap catch by ≥90% for 10 weeks in a similar manner as SPLAT GM™ and Hercon Disrupt® II (Hercon Environmental, Emigsville, PA, USA). Although we observed persistent effects in all products one year after application, the persistence observed in SPLAT GM™ and SPLAT GM™ Organic was significantly lower than that of Hercon Disrupt® II plastic laminated flakes.

show abstract

Pharmaceutical Sciences—1974: Literature Review of Pharmaceutics

Haleblian¹,

Goodhart²

1975

Journal of Pharmaceutical Sciences

View full text Add to dashboard Cite

Influence of Solute Properties on Release of p-Aminobenzoic Acid Esters from Silicone Rubber: Theoretical Considerations

Cited by 12 publications

References 13 publications

Slow-release of methanogenic inhibitors derived from encapsulated calcium carbide using paraffin wax and/or rosin: matrix optimization and diffusion characteristics

Slow-release of methanogenic inhibitors derived from encapsulated calcium carbide using paraffin wax and/or rosin: matrix optimization and diffusion characteristics

Efficacies and Second-Year Effects of SPLAT GM™ and SPLAT GM™ Organic Formulations

Pharmaceutical Sciences—1974: Literature Review of Pharmaceutics

Contact Info

Product

Resources

About