scholarly journals Polyamide 6.6 separates oil/water due to its dual underwater oleophobicity/underoil hydrophobicity: Role of 2D and 3D porous structures

2019 ◽  
Vol 466 ◽  
pp. 282-288 ◽  
Author(s):  
Pei Zhao ◽  
Ning Qin ◽  
Carolyn L. Ren ◽  
John Z. Wen
2021 ◽  
Vol 5 (1) ◽  
pp. 97-128
Author(s):  
Jichao Zhang ◽  
Lifang Liu ◽  
Yang Si ◽  
Jianyong Yu ◽  
Bin Ding

This review focuses on the preparation of electrospun nanofibers with selective wettability (hydrophobic–oleophilic, hydrophilic–oleophobic, and switchable properties) and porous structure (2D and 3D porous structures) for emulsion separation.


2021 ◽  
pp. 105501
Author(s):  
W.H. Wu ◽  
D.G. Eskin ◽  
A. Priyadarshi ◽  
T. Subroto ◽  
I. Tzanakis ◽  
...  

10.28945/3018 ◽  
2006 ◽  
Author(s):  
Anton Nijholt

There are many ways to present information to visitors and users of 2D and 3D interface environments. In these virtual environments we can provide visitors with simulations of real environments, including simulations of presenters in such environments (a lecturer, a sales agent, a receptionist, a museum guide) and including audience participation in these environments. Our research aims at generating presentations from available multimedia information. In particular, we would like to see the generation of presentations by embodied conversational agents that employ verbal and nonverbal capabilities. In the past we have seen the introduction of embodied agents and robots that take the role of a museum guide, a news presenter, a teacher, a receptionist, or someone who is trying to sell insurance, houses or tickets. In all these cases the embodied agent needs to explain and to describe. The automatic generation of presentations and presentation agents from information sources is still too ambitious a task. Therefore we look at research from the perspective of the design of tools that can support presenters or can help to provide natural access to presentations and lectures. Can we use a given collection of sheets and maybe other accessible media sources to design, create and generate an embodied presenter? Among others we discuss manual annotation of available information and the way in which presenter agents can use it. Clearly, the development of tools for these purposes is a first step towards automating the generation of presentations and presentation agents.


2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Sarika Singh ◽  
Eric Prestat ◽  
Liang-Feng Huang ◽  
James M. Rondinelli ◽  
Sarah J. Haigh ◽  
...  
Keyword(s):  

2019 ◽  
Vol 20 (23) ◽  
pp. 6017 ◽  
Author(s):  
Prospero Civita ◽  
Diana M. Leite ◽  
Geoffrey Pilkington

The role of astrocytes in the glioblastoma (GBM) microenvironment is poorly understood; particularly with regard to cell invasion and drug resistance. To assess this role of astrocytes in GBMs we established an all human 2D co-culture model and a 3D hyaluronic acid-gelatin based hydrogel model (HyStem™-HP) with different ratios of GBM cells to astrocytes. A contact co-culture of fluorescently labelled GBM cells and astrocytes showed that the latter promotes tumour growth and migration of GBM cells. Notably, the presence of non-neoplastic astrocytes in direct contact, even in low amounts in co-culture, elicited drug resistance in GBM. Recent studies showed that non-neoplastic cells can transfer mitochondria along tunneling nanotubes (TNT) and rescue damaged target cancer cells. In these studies, we explored TNT formation and mitochondrial transfer using 2D and 3D in vitro co-culture models of GBM and astrocytes. TNT formation occurs in glial fibrillary acidic protein (GFAP) positive “reactive” astrocytes after 48 h co-culture and the increase of TNT formations was greater in 3D hyaluronic acid-gelatin based hydrogel models. This study shows that human astrocytes in the tumour microenvironment, both in 2D and 3D in vitro co-culture models, could form TNT connections with GBM cells. We postulate that the association on TNT delivery non-neoplastic mitochondria via a TNT connection may be related to GBM drug response as well as proliferation and migration.


Materials ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 5714
Author(s):  
Ha-Jin Lee ◽  
Won San Choi

Air and water pollution pose an enormous threat to human health and ecosystems. In particular, particulate matter (PM) and oily wastewater can cause serious environmental and health concerns. Thus, controlling PM and oily wastewater has been a great challenge. Various techniques have been reported to effectively remove PM particles and purify oily wastewater. In this article, we provide a review of the recent advancements in air filtration and oil/water separation using two- and three-dimensional (2D and 3D) bulk materials. Our review covers the advantages, characteristics, limitations, and challenges of air filters and oil/water separators using 2D and 3D bulk materials. In each section, we present representative works in detail and describe the concepts, backgrounds, employed materials, fabrication methods, and characteristics of 2D and 3D bulk material-based air filters and oil/water separators. Finally, the challenges, technical problems, and future research directions are briefly discussed for each section.


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