Publications by authors named "P M W van Kempen"

Background: Brachytherapy (BT) is routinely used in the treatment of various cancers. Current BT relies on the placement of large sources of radioactivity at the tumor site, requiring applicators that may cause local traumas and lesions. Further, they suffer from inflexibility in where they can be placed and some sources reside permanently in the body, causing potential long-term discomfort.

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Recent investigations into autonomous ingestible microjet devices have demonstrated the feasibility of delivering many drug modalities directly into the gastrointestinal (GI) wall via the oral route. However, the expression and biodistribution of mRNA after such injections remain unexplored. mRNA-lipid nanoparticles (mRNA-LNPs) are promising therapeutics for treating or vaccinating against many diseases and pathogens.

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To quantify concentration and encapsulation efficiency (EE) of mRNA in lipid nanoparticles (LNPs) the RiboGreen assay is extensively used. As part of this assay, a surfactant is used to release mRNA from LNPs for detection with the RiboGreen dye. So far, the surfactant of choice has been Triton X-100, which is harmful to human health and the environment.

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Cardiovascular diseases pose a significant global health challenge, contributing to high mortality rates and impacting overall well-being and quality of life. Nitric oxide (NO) plays a pivotal role as a vasodilator, regulating blood pressure and enhancing blood flow-crucial elements in preventing cardiovascular diseases, making it a prime therapeutic target. Herein, metal-based nanozymes (NZs) designed to induce NO release from both endogenous and exogenous NO-donors are investigated.

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Unlabelled: Microalgal microbiomes play vital roles in the growth and health of their host, however, their composition and functions remain only partially characterized, especially across microalgal phyla. In this study, a natural seawater microbiome was introduced to three distinct, axenic species of microalgae, the haptophyte the chlorophyte and the diatom (previously ), and its divergence and assembly under constant illumination was monitored over 49 days using 16S rRNA amplicon and metagenomic analyses. The microbiomes had a high degree of host specificity in terms of taxonomic composition and potential functions, including CAZymes profiles.

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