Influence of environment on wetting properties of common polymers for Skin-Device Interfaces
Notice bibliographique
Résumé
Many non-invasive personal healthcare devices suffer from poor, occlusive skin contact. This disrupts physiological interface microclimate and device functionality. Surface engineering can provide multifunctional surfaces which precisely control and regulate microclimates at the skin-device interface. The regulation efficacy through surface engineering is contingent upon both the material and intrinsic surface properties, as well as the topology design. In particular, the wettability plays a crucial role in regulating these microclimate conditions. Before introducing surface engineering for developing innovative skin-device interfaces, the wetting behaviour of the materials needs to be determined. The polymeric materials polydimethylsiloxane (PDMS), polyvinyl chloride (PVC), polypropylene (PP), and polyethylene (PE) are commonly used in non-invasive personal healthcare devices. Existing studies indicate an impact of temperature and relative humidity (RH) on the wetting properties, as characterised by the contact angle (CA). Nevertheless, most studies have been conducted under ambient conditions (20°C and 50% RH), on different materials, or are in disagreement regarding the climate dependence of polymer wettability. This study applies advanced characterisation and evaluation methods to set a reference for the wetting behaviour of the mentioned polymers in their untreated state. A custom climate chamber was designed and built in which temperature and humidity can be separately controlled. In this chamber, droplets can be applied on a surface, after which the CA can be measured using a goniometer. In this controlled environment, the CA of PP, PVC, PE and PDMS substrates was determined as a function of relative humidity (RH 10 to 90%) and temperature (5 to 50°C). The systematic and comprehensive study shows that although the CA is significantly different for almost all polymers, there is no significant dependence of the CA on either humidity or temperature for PP, PVC and PE. The water CA of PDMS exhibits a linear temperature dependency at a constant RH, while the CA measured with diiodomethane suggests a linearly inverse dependence on RH. We conclude that the influence of these climate conditions on the wettability of these polymers is negligible. For improvement of the device- skin interface we will therefore focus on engineering surface engineering strategies for microclimate regulation.Many non-invasive personal healthcare devices suffer from poor, occlusive skin contact. This disrupts physiological interface microclimate and device functionality. Surface engineering can provide multifunctional surfaces which precisely control and regulate microclimates at the skin-device interface. The regulation efficacy through surface engineering is contingent upon both the material and intrinsic surface properties, as well as the topology design. In particular, the wettability plays a crucial role in regulating these microclimate conditions. Before introducing surface engineering for developing innovative skin-device interfaces, the wetting behaviour of the materials needs to be determined. The polymeric materials polydimethylsiloxane (PDMS), polyvinyl chloride (PVC), polypropylene (PP), and polyethylene (PE) are commonly used in non-invasive personal healthcare devices. Existing studies indicate an impact of temperature and relative humidity (RH) on the wetting properties, as characterised by the contact angle (CA). Nevertheless, most studies have been conducted under ambient conditions (20°C and 50% RH), on different materials, or are in disagreement regarding the climate dependence of polymer wettability. This study applies advanced characterisation and evaluation methods to set a reference for the wetting behaviour of the mentioned polymers in their untreated state. A custom climate chamber was designed and built in which temperature and humidity can be separately controlled. In this chamber, droplets can be applied on a surface, after which the CA can be measured using a goniometer. In this controlled environment, the CA of PP, PVC, PE and PDMS substrates was determined as a function of relative humidity (RH 10 to 90%) and temperature (5 to 50°C). The systematic and comprehensive study shows that although the CA is significantly different for almost all polymers, there is no significant dependence of the CA on either humidity or temperature for PP, PVC and PE. The water CA of PDMS exhibits a linear temperature dependency at a constant RH, while the CA measured with diiodomethane suggests a linearly inverse dependence on RH. We conclude that the influence of these climate conditions on the wettability of these polymers is negligible. For improvement of the device- skin interface we will therefore focus on engineering surface engineering strategies for microclimate regulation.Many non-invasive personal healthcare devices suffer from poor, occlusive skin contact. This disrupts physiological interface microclimate and device functionality. Surface engineering can provide multifunctional surfaces which precisely control and regulate microclimates at the skin-device interface. The regulation efficacy through surface engineering is contingent upon both the material and intrinsic surface properties, as well as the topology design. In particular, the wettability plays a crucial role in regulating these microclimate conditions. Before introducing surface engineering for developing innovative skin-device interfaces, the wetting behaviour of the materials needs to be determined. The polymeric materials polydimethylsiloxane (PDMS), polyvinyl chloride (PVC), polypropylene (PP), and polyethylene (PE) are commonly used in non-invasive personal healthcare devices. Existing studies indicate an impact of temperature and relative humidity (RH) on the wetting properties, as characterised by the contact angle (CA). Nevertheless, most studies have been conducted under ambient conditions (20°C and 50% RH), on different materials, or are in disagreement regarding the climate dependence of polymer wettability. This study applies advanced characterisation and evaluation methods to set a reference for the wetting behaviour of the mentioned polymers in their untreated state. A custom climate chamber was designed and built in which temperature and humidity can be separately controlled. In this chamber, droplets can be applied on a surface, after which the CA can be measured using a goniometer. In this controlled environment, the CA of PP, PVC, PE and PDMS substrates was determined as a function of relative humidity (RH 10 to 90%) and temperature (5 to 50°C). The systematic and comprehensive study shows that although the CA is significantly different for almost all polymers, there is no significant dependence of the CA on either humidity or temperature for PP, PVC and PE. The water CA of PDMS exhibits a linear temperature dependency at a constant RH, while the CA measured with diiodomethane suggests a linearly inverse dependence on RH. We conclude that the influence of these climate conditions on the wettability of these polymers is negligible. For improvement of the device- skin interface we will therefore focus on engineering surface engineering strategies for microclimate regulation.Many non-invasive personal healthcare devices suffer from poor, occlusive skin contact. This disrupts physiological interface microclimate and device functionality. Surface engineering can provide multifunctional surfaces which precisely control and regulate microclimates at the skin-device interface. The regulation efficacy through surface engineering is contingent upon both the material and intrinsic surface properties, as well as the topology design. In particular, the wettability plays a crucial role in regulating these microclimate conditions. Before introducing surface engineering for developing innovative skin-device interfaces, the wetting behaviour of the materials needs to be determined. The polymeric materials polydimethylsiloxane (PDMS), polyvinyl chloride (PVC), polypropylene (PP), and polyethylene (PE) are commonly used in non-invasive personal healthcare devices. Existing studies indicate an impact of temperature and relative humidity (RH) on the wetting properties, as characterised by the contact angle (CA). Nevertheless, most studies have been conducted under ambient conditions (20°C and 50% RH), on different materials, or are in disagreement regarding the climate dependence of polymer wettability. This study applies advanced characterisation and evaluation methods to set a reference for the wetting behaviour of the mentioned polymers in their untreated state. A custom climate chamber was designed and built in which temperature and humidity can be separately controlled. In this chamber, droplets can be applied on a surface, after which the CA can be measured using a goniometer. In this controlled environment, the CA of PP, PVC, PE and PDMS substrates was determined as a function of relative humidity (RH 10 to 90%) and temperature (5 to 50°C). The systematic and comprehensive study shows that although the CA is significantly different for almost all polymers, there is no significant dependence of the CA on either humidity or temperature for PP, PVC and PE. The water CA of PDMS exhibits a linear temperature dependency at a constant RH, while the CA measured with diiodomethane suggests a linearly inverse dependence on RH. We conclude that the influence of these climate conditions on the wettability of these polymers is negligible. For improvement of the device- skin interface we will therefore focus on engineering surface engineering strategies for microclimate regulation.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,001 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».