Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Paul Kippax"'
Publikováno v:
Journal of Pharmaceutical Sciences. 108:3515-3520
Particle size analysis in the pharmaceutical industry has long been a source of debate regarding how best to define measurement accuracy; the degree to which the result of a measurement or calculation conforms to the true value. Defining a “true”
Publikováno v:
Powder Technology. 250:75-83
Powder processing operations can give rise to tribo-electrification of particles. The resulting electrostatic force can cause segregation/agglomeration of particles as well as their adhesion to the walls of the processing equipment, adversely affecti
Publikováno v:
Powder Technology. 240:88-94
The relationship between bulk powder cohesion and ease of powder dispersion is of interest for many applications including particle characterisation and drug delivery from dry powder inhalers. Quasi-static bulk powder testing is used to evaluate powd
Autor:
Paul Kippax, David Alexander Vodden Morton, Ian Larson, Peter Stewart, Srinivas Ravindra Babu Behara
Publikováno v:
International Journal of Pharmaceutics. 421:72-81
The purpose of the current investigation is to understand the kinetics of de-agglomeration (k(d)) of micronised salbutamol sulphate (SS) and lactohale 300 (LH300) under varying air flow rates (30-180l min(-1)) from three dry powder inhaler devices (D
Autor:
Peter Stewart, Srinivas Ravindra Babu Behara, Ian Larson, Paul Kippax, David Alexander Vodden Morton
Publikováno v:
Chemical Engineering Science. 66:5284-5292
The purpose of this study was to understand the kinetics of emptying of micronised salbutamol sulphate (SS) and lactohale 300 (LH300) under varying air flow rates (30–180 L min −1 ) from three dry powder inhaler devices, Rotahaler ® (RH), Monodo
Autor:
Srinivas Ravindra Babu Behara, Paul Kippax, Ian Larson, Peter Stewart, David Alexander Vodden Morton
Publikováno v:
Chemical Engineering Science. 66:1640-1648
The purpose of this study was to characterise the cohesive behaviour of powders by measuring aerosolisation at a sequence of different flow rates, i.e. flow titration. Salbutamol sulphate and Lactohale 300 were model cohesive materials. Laser diffrac
Autor:
David Alexander Vodden Morton, Michelle P. McIntosh, Srinivas Ravindra Babu Behara, Peter Stewart, Paul Kippax, Ian Larson
Publikováno v:
European Journal of Pharmaceutical Sciences. 42:210-219
Purpose The purpose of this study was to understand the behaviour of cohesive powder mixtures of salbutamol sulphate (SS) and micronized lactose (LH300) at ratios of SS:LH300 of 1:1, 1:2, 1:4 and 1:8 under varying air flow conditions. Methods Aerosol
Autor:
Philippe Begat, Jagdeep Shur, John N. Staniforth, Robert Price, David Alexander Vodden Morton, Paul Kippax
Publikováno v:
Journal of Pharmaceutical Sciences. 98:2770-2783
The aim of this study was to determine the aerosolisation and aerodynamic properties of model inhalation particles (salbutamol sulphate and budesonide) upon coprocessing with force control agents (FCAs)-leucine, lecithin and magnesium stearate. Copro
Publikováno v:
International Journal of Pharmaceutics. 371:99-105
Mathematical models are available which predict aerosol deposition in the respiratory system assuming that the aerosol concentration and size are constant during inhalation. In this study, we constructed a sinusoidal breathing model to calculate the
Publikováno v:
Powder Technology. 134:243-248
Ultrasonic attenuation spectroscopy is a recently developed technique for rapid characterisation of particulate suspensions at high concentrations. Implementation of the full Epstein–Carhart–Allegra–Hawley model, which is used to transform ultr