Impact of the physical-chemical properties of poly(lactic acid)-poly(ethylene glycol) polymeric nanoparticles on biodistribution.

Nanoparticle (NP) formulations are inherently polydisperse making their structural characterization and justification of specifications complex. It is essential, however, to gain an understanding of the physico-chemical properties that drive performance in vivo. To elucidate these properties, drug-containing poly(lactic acid) (PLA)-poly(ethylene glycol) (PEG) block polymeric NP formulations (or PNPs) were sub-divided into discrete size fractions and analyzed using a combination of advanced techniques, namely cryogenic transmission electron microscopy, small-angle neutron and X-ray scattering, nuclear magnetic resonance, and hard-energy X-ray photoelectron spectroscopy.

Pregnant women's perceptions of antenatal care and utilisation of digital health tools in Magu District, Tanzania: a qualitative study.

Antenatal care is essential to promote maternal health. Prior research has focused on barriers women face to attending antenatal care, and improving quality of care is seen as a precondition for better attendance. Digital health tools are seen as a promising instrument to increase the quality of healthcare.

Understanding women's decision-making process for birth location in Tanzania based on individual women's reproductive pathways: a life-course perspective.

Background: Determinants for women's care seeking for birth in low-income setting are multifactorial and remain poorly understood. A life course approach can assist to structure the interplay of the different factors that lead to women seeking care or not.

Objective: In this study we aimed to explore individual women's reproductive pathways, and increase understanding of how important life events including previous pregnancy and birth experiences can help us to understand individual choices made for care seeking during childbirth.

A Costimulatory CAR Improves TCR-based Cancer Immunotherapy.

T-cell receptors (TCR) recognize intracellular and extracellular cancer antigens, allowing T cells to target many tumor antigens. To sustain proliferation and persistence, T cells require not only signaling through the TCR (signal 1), but also costimulatory (signal 2) and cytokine (signal 3) signaling. Because most cancer cells lack costimulatory molecules, TCR engagement at the tumor site results in incomplete T-cell activation and transient antitumor effects.