Results 81 to 90 of about 373,370 (270)

Straining free-standing graphene [PDF]

open access: yesScience, 2020
2D Materials Graphene is known, at least theoretically, to have a very high stiffness, which has been difficult to measure experimentally. Part of the challenge is being able to stretch and monitor a free-standing single-crystal monolayer of graphene instead of one that is supported. Cao et al.
openaire   +1 more source

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley   +1 more source

Free-Standing GaMnAs Nanomachined Sheets for van der Pauw Magnetotransport Measurements

open access: yesMicromachines, 2016
We report on the realization of free-standing GaMnAs epilayer sheets using nanomachining techniques. By optimizing the growth conditions of the sacrificial Al0.75Ga0.25As layer, free-standing metallic GaMnAs (with ~6% Mn) microsheets (with TC ~85 K) with
Jae-Hyun Lee   +6 more
doaj   +1 more source

Electronic structures of [111]-oriented free-standing InAs and InP nanowires

open access: yes, 2015
We report on a theoretical study of the electronic structures of the [111]-oriented, free-standing, zincblende InAs and InP nanowires with hexagonal cross sections by means of an atomistic $sp^{3}s^{*} $, spin-orbit interaction included, nearest-neighbor,
Chen, Ke-Qiu   +3 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Free-standing supramolecular hydrogel objects by reaction-diffusion

open access: yesNature Communications, 2017
Reaction-diffusion controls the spatial formation of many natural structures but is rarely applied to organic materials. Here, the authors couple reaction-diffusion to the self-assembly of a supramolecular gelator, introducing a strategy to forming soft,
Matija Lovrak   +6 more
doaj   +1 more source

Making ARPES Measurements on Corrugated Monolayer Crystals: Suspended Exfoliated Single-Crystal Graphene

open access: yes, 2011
Free-standing exfoliated monolayer graphene is an ultra-thin flexible membrane, which exhibits out of plane deformation or corrugation. In this paper, a technique is described to measure the band structure of such free-standing graphene by angle-resolved
Alberto Morgante   +10 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Mechanical Properties of Magnetron Sputtered Free Standing Mg-Ag Alloy Films

open access: yesFrontiers in Materials, 2019
Magnesium based alloys gained great interest for medical biodegradable applications. Limitations arise from high corrosion rates and mechanical properties of the Mg based alloys.
Lea K. Jessen   +2 more
doaj   +1 more source

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