Results 31 to 40 of about 2,387 (173)

Recycling Polyurethane Materials: A Comparison of Polyol from Glycolysis with Micronized Polyurethane Powder in Particleboard Applications

open access: yesBioResources, 2014
Three different types of recycled polyurethane (PUR) material, two in powder form from a pulverizing process (one < 50 µm and one < 250 µm) and one in polyol form from a glycolysis process, were used as substitutes for polymeric methylene diphenyl ...
An Mao, Rubin Shmulsky, Qi Li, Hui Wan
doaj   +1 more source

Hair analysis of formoterol as a novel tool to assess long‐term inhalation medication adherence: Data from the TRICOLON trial

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Aim The aim of this paper is to examine inhaled formoterol concentrations in hair and assess the potential of hair analysis as a tool for measuring long‐term adherence, by validation with objective data from digital inhalers. Methods Hair samples and digital inhaler data were collected from patients with COPD in 10 hospitals in the Netherlands as part ...
Liz J. A. Cuperus   +44 more
wiley   +1 more source

Flow Profiles Identify Sources of Poor Metered Dose Inhaler TechniqueTake-Home Points

open access: yesCHEST Pulmonary
Background: Inhaled medications are commonly used as therapy for obstructive lung disease (OLD); however, poor technique from pressurized metered dose inhalers (pMDIs) can severely limit drug delivery and therapeutic efficacy.
Stuart D. King, BS   +5 more
doaj   +1 more source

Twenty years of inhaler therapy: A nationwide drug utilization study

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Aims This study aimed to map nationwide trends and prescribing patterns in inhaler use from 2004 to 2023. In light of evolving clinical guidelines and attention to the environmental impact of inhalers within recent years, we also examined variation in prescribing behaviour and patient‐level treatment choices. Methods Using nationwide health registries,
Katrine Bitsch Johansen   +5 more
wiley   +1 more source

In Vitro Performance of Valved Holding Chambers in Paediatric Asthma Controller Therapy

open access: yesActa Paediatrica, EarlyView.
ABSTRACT Aim Research on the drug delivery of inhaled corticosteroids and combination medications via valved holding chambers (VHCs) with children's breathing patterns is limited. We aimed to evaluate the in vitro performance of commercially available VHCs without facemasks under preschooler breathing conditions, focusing on total delivered dose and ...
Laura Ojanperä   +2 more
wiley   +1 more source

Dynamic Characterization of Frequency Response of Shock Mitigation of a Polymethylene Diisocyanate (PMDI) Based Rigid Polyurethane Foam

open access: yesLatin American Journal of Solids and Structures
Kolsky compression bar experiments were conducted to characterize the shock mitigation response of a polymethylene diisocyanate (PMDI) based rigid polyurethane foam, abbreviated as PMDI foam in this study. The Kolsky bar experimental data was analyzed in
Bo Song, Kevin Nelson
doaj   +1 more source

Glycemic and Renal Effects of SGLT2 Inhibitors in Monogenic Diabetes: A Real‐World National Study

open access: yesDiabetes, Obesity and Metabolism, EarlyView.
ABSTRACT Aims Evidence regarding the efficacy and safety of sodium–glucose cotransporter 2 inhibitors (SGLT2i) in monogenic diabetes is limited. We evaluated real‐world metabolic, renal, and safety outcomes of SGLT2i therapy in adults with monogenic diabetes.
Estelle Audrain   +15 more
wiley   +1 more source

Designing chiral organic small molecules for circularly polarized light detection via group theory

open access: yesInfoMat, Volume 8, Issue 8, August 2026.
The chiral point group determines the arrangement of the μ‐m of chiral organic small molecules, thereby influencing their chiral photoelectric properties. In particular, chiral molecules with the D2 point group can effectively align the μ‐m to be either 0° or 180°, an effective strategy for high‐performance circularly polarized light photodetectors ...
Zhenping Li   +10 more
wiley   +1 more source

Chemical modification of tannin/furanic rigid foams by isocyanates and polyurethanes

open access: yesMaderas: Ciencia y Tecnología, 2014
Tannin/furanic rigid foams were modifi ed by either polymeric 4,4’ diphenylmethane diisocyanate (pMDI) or a one-component polyurethane still presenting reactive isocyanate groups (PUR).
X. Li   +4 more
doaj  

Nanocomposites of Rigid Polyurethane Foam and Graphene Nanoplates Obtained by Exfoliation of Natural Graphite in Polymeric 4,4′-Diphenylmethane Diisocyanate

open access: yesNanomaterials, 2022
The influence of graphene nanoplates (GNPs) obtained by the ecofriendly exfoliation of natural graphite has been addressed on the mechanical and thermal insulating properties of rigid polyurethane foams (RPUFs).
Se-Ra Shin, Dai-Soo Lee
doaj   +1 more source

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