290831

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Experimental measurements of particle deposition in three proximal lung bifurcation models with an idealized mouth-throat.

Y Zhang et al.

Journal of aerosol medicine : the official journal of the International Society for Aerosols in Medicine, 18(4), 460-473 (2005-12-29)

In this paper, particle deposition in three idealized proximal lung bifurcation models with an idealized mouth-throat were investigated experimentally. These bifurcation models included (1) a small symmetric bifurcation, (2) an intermediate asymmetric bifurcation, and (3) a large symmetric bifurcation. An

Wetting-Dewetting oscillations of liquid films during solution-mediated vacuum deposition of rubrene.

Yui Ishii et al.

Langmuir : the ACS journal of surfaces and colloids, 23(12), 6864-6868 (2007-05-15)

We found a novel oscillating phenomenon associated with surface wetting during the vacuum deposition of an organic semiconductor (rubrene) on a liquid film (bis(2-ethylhexyl)sebacate, B2EHS). In-situ observations by an optical microscope revealed that the oscillation was associated with the growth

Textile-based sampling for potentiometric determination of ions.

Grzegorz Lisak et al.

Analytica chimica acta, 877, 71-79 (2015-05-24)

Potentiometric sensing utilizing textile-based micro-volume sampling was applied and evaluated for the determination of clinically (Na(+), K(+), Cl(-)) and environmentally (Cd(2+), Pb(2+) and pH) relevant analytes. In this technological design, calibration solutions and samples were absorbed into textiles while the

Spectrophotometric determination of various polyanions with polymeric film optodes using microtiter plate reader.

Nedime Dürüst et al.

Analytica chimica acta, 699(1), 107-112 (2011-06-28)

Polycation-sensitive membrane optodes based on the chromoionophore 2',7'-dichlorofluorescein octadecylester (DCFOE) have previously been developed and used for determination of heparin via a titrimetric method. In this study, it is shown that some other important polyanions such as PPS (pentosan polysulfate)

Increased fine particle deposition in women with asymptomatic nonspecific airway hyperresponsiveness.

M Kohlhäufl et al.

American journal of respiratory and critical care medicine, 159(3), 902-906 (1999-03-02)

Previous studies suggest that lung function tests using monodisperse aerosols can help to identify early stages of lung diseases. We investigated intrapulmonary particle loss and aerosol bolus dispersion-a marker of convective gas transport-in 32 women with asymptomatic nonspecific bronchial hyperresponsiveness

Promoting activity of di(2-ethylhexyl)phthalate in rat liver foci bioassay.

D Oesterle et al.

Journal of cancer research and clinical oncology, 114(2), 133-136 (1988-01-01)

The plasticizer DEHP but not DEHS exerted a weak promoting effect in a 12-week rat liver foci bioassay, using weanling female Sprague-Dawley rats. The effect was similar after doses of 200 and 500 mg/kg body weight, given 3 times weekly

Zielinska, R.,

Analytical Chemistry, 451, 243-243 (2006)

Respiratory tract deposition of ultrafine particles in subjects with obstructive or restrictive lung disease.

P J Anderson et al.

Chest, 97(5), 1115-1120 (1990-05-01)

To evaluate the effects of lung disease on deposition of inhaled ultrafine particles (less than 0.1 micron diameter), we measured total respiratory tract deposition of nonhygroscopic particles of 0.02 to 0.24 micron in five subjects with obstructive lung disease and

Micro-miniature autonomous optical sensor array for monitoring ions and metabolites 1: design, fabrication, and data analysis.

Koji Tohda et al.

Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 22(3), 383-388 (2006-05-31)

A micro-miniature array of sensing capsules for optical monitoring of pH, potassium and glucose is described. Optode technology translates the respective ionic levels into variable colors of ionophore/dye/polymeric liquid micro-beads stuffed into individual capsules. Glucose is monitored indirectly, by coupling

The statistical evolution of multiple generations of oxidation products in the photochemical aging of chemically reduced organic aerosol.

Kevin R Wilson et al.

Physical chemistry chemical physics : PCCP, 14(4), 1468-1479 (2011-12-14)

The heterogeneous reactions of hydroxyl radicals (OH) with squalane and bis(2-ethylhexyl) sebacate (BES) particles are used as model systems to examine how distributions of reaction products evolve during the oxidation of chemically reduced organic aerosol. A kinetic model of multigenerational

Aerosol-derived airway morphometry (ADAM) in patients with lung emphysema diagnosed by computed tomography--reproducibility, diagnostic information and modelling.

B Lehnigk et al.

European journal of medical research, 12(2), 74-83 (2007-03-21)

Gravitational deposition of monodisperse particles can be used to determine effective airway diameter (EAD). The aim of our study was to assess intraindividual variability of EAD in healthy subjects and patients with emphysema, to compare EAD in patients with different

Determination of complex formation constants of 18 neutral alkali and alkaline earth metal ionophores in poly (vinyl chloride) sensing membranes plasticized with bis (2-ethylhexyl) sebacate and o-nitrophenyloctylether.

Qin Y, et al.

Analytica Chimica Acta, 421(2), 207-220 (2000)

Investigation of Sensitivities and Drift Effects of the Arrayed Flexible Chloride Sensor Based on RuO2/GO at Different Temperatures.

Tseng S, et al.

Sensors, 18(2), 632-632 (2018)

Fast synthesis of platinum nanopetals and nanospheres for highly-sensitive non-enzymatic detection of glucose and selective sensing of ions.

Irene Taurino et al.

Scientific reports, 5, 15277-15277 (2015-10-31)

Novel methods to obtain Pt nanostructured electrodes have raised particular interest due to their high performance in electrochemistry. Several nanostructuration methods proposed in the literature use costly and bulky equipment or are time-consuming due to the numerous steps they involve.

Influence of intrinsic particle properties on the assessment of convective gas transport by aerosol bolus technique.

H Schulz et al.

Experimental lung research, 22(4), 393-407 (1996-07-01)

Aerosol bolus measurements are increasingly being used in patients and healthy subjects to assess convective gas transport and mixing in the lungs. To investigate the extent to which intrinsic particle properties confound parameters derived for the assessment of intrapulmonary transport

Comparability of portable nanoparticle exposure monitors.

Christof Asbach et al.

The Annals of occupational hygiene, 56(5), 606-621 (2012-07-04)

Five different portable instrument types to monitor exposure to nanoparticles were subject to an intensive intercomparison measurement campaign. Four of them were based on electrical diffusion charging to determine the number concentration or lung deposited surface area (LDSA) concentration of

Bereczki, R.,

Analytical Chemistry, 569, 42-42 (2006)

Intersubject variability in particle deposition does not explain variability in responsiveness to methacholine.

B L Laube et al.

The American review of respiratory disease, 146(3), 808-809 (1992-09-01)

Sensitive and selective detection of trace copper in standard alloys, food and biological samples using a bulk optode based on N,N'-(4,4'-ethylene biphenyl) bis(3-methoxy salicylidine imine) as neutral carrier.

Majid Arvand et al.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 107, 280-288 (2013-02-26)

In this paper, an optical sensing film has been proposed for sensitive determination of copper (ІІ) ion in aqueous solutions. The copper sensing membrane was prepared by incorporating N,N'-(4,4'-ethylene biphenyl) bis(3-methoxy salicylidine imine) as ionophore in the plasticized PVC membrane

Developing ultra-high gas permeance PVDF hollow fibers for air filtration applications.

Wang L, et al.

Separation and Purification Technology, 205(2), 184-195 (2018)

Experimental evaluation of oil mists using a semivolatile aerosol dichotomous sampler.

Seung Won Kim et al.

Journal of occupational and environmental hygiene, 7(4), 203-215 (2010-02-05)

The sampling performance of the semivolatile aerosol dichotomous sampler (SADS) was tested and compared with existing vapor and particle sampling methods: filtration, electrostatic precipitation, and vapor adsorption. Seven different test fluids were used to generate test droplets, and their concentrations

Intersubject variability in particle deposition does not explain variability in responsiveness to methacholine.

P J Anderson et al.

The American review of respiratory disease, 144(3 Pt 1), 649-654 (1991-09-01)

How variable is the deposition of inhaled methacholine (MCH) in the respiratory tract during a challenge test? Does this variability contribute to the variability of airway responsiveness? To examine these questions we estimated the deposition of polydisperse MCH droplets by

Jain, A.K. et al.

Electrochimica Acta, 51(12), 2006-2006 (2006)

Interindividual variability in nasal filtration as a function of nasal cavity geometry.

Guilherme J M Garcia et al.

Journal of aerosol medicine and pulmonary drug delivery, 22(2), 139-155 (2009-05-09)

Interindividual variability in nasal filtration is significant due to interindividual differences in nasal anatomy and breathing rate. Two important consequences arise from this variation among humans. First, devices for nasal drug delivery may furnish quite different doses in the nasal

Assessment of regional deposition of inhaled particles in human lungs by serial bolus delivery method.

C S Kim et al.

Journal of applied physiology (Bethesda, Md. : 1985), 81(5), 2203-2213 (1996-11-01)

Detailed regional deposition of inhaled particles was investigated in young adults (n = 11) by use of a serial bolus aerosol delivery technique. A small bolus (45 ml half-width) of monodisperse aerosols [1-, 3-, and 5-microns particle diameter (Dp)] was

Aerosol bolus dispersion and effective airway diameters in mildly asthmatic children.

H Schulz et al.

The European respiratory journal, 8(4), 566-573 (1995-04-01)

The contribution of aerosol techniques, the estimation of aerosol bolus dispersion and effective airway dimensions, to the clinical diagnosis of paediatric asthma was studied. In 47 children, aged 11 +/- 2 yrs, with mild asthma (forced expiratory volume in one

Quantitative deposition of ultrafine stable particles in the human respiratory tract.

F J Wilson et al.

Journal of applied physiology (Bethesda, Md. : 1985), 58(1), 223-229 (1985-01-01)

Theoretical models of particle deposition in the respiratory tract predict high fractional deposition for particles of less than 0.1 micron, but there are few confirming experimental data for those predictions. We have measured the deposition fraction of a nonhygroscopic aerosol

Effect of electrostatic charge on deposition of uniformly charged monodisperse particles in the nasal extrathoracic airways of an infant.

Mehdi Azhdarzadeh et al.

Journal of aerosol medicine and pulmonary drug delivery, 28(1), 30-34 (2014-04-03)

The fraction of inhaled particles depositing in the nasal extrathoracic airways determines the amount of particles delivered to the lungs of infants. Electrostatic charge on particles can affect this deposition, and for this reason, deposition of charged aerosol particles in

Convective mixing in human respiratory tract: estimates with aerosol boli.

J Heyder et al.

Journal of applied physiology (Bethesda, Md. : 1985), 64(3), 1273-1278 (1988-03-01)

Convective gas mixing in the respiratory tract of 17 healthy male subjects was studied by an aerosol bolus technique. The monodisperse 1 micron di(2-ethylhexyl)sebacate droplets we used behaved as a nondiffusing gas. As the bolus was inspired to different depths

[Pulmonary diagnosis with model aerosols. II: Aerosol bolus dispersion--a marker for convection gas transport. Basic principles and initial clinical results].

M Kohlhäufl et al.

Pneumologie (Stuttgart, Germany), 53(1), 50-56 (1999-03-26)

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