نتایج جستجو برای: colloidal material

تعداد نتایج: 380977  

Journal: :Theory, Culture & Society 2021

This paper argues that an exploration of colloids can help us situate human social life within a wider understanding the sociality and animacy matter. Colloids are substances such as sols, foams, powders, gels, doughs pastes exhibit complex shifting macroscale physical properties do not conform to standard conceptions solids, liquids or gases. behave in creative ways because their topological e...

2015
Jahnelle C. Jordan Melissa H. Lash Morgan V. Fedorchak Joseph J. McCarthy Steven R. Little

INTRODUCTION Each year, there are about 3 million musculoskeletal surgeries performed in the United States. Two primary therapeutic methods used to repair musculoskeletal damage, specifically concerning bone damage, are autografts and allografts. Autografting, involves removing bone material from a secondary site on the patient for implantation at the damaged site, while allografting encompasse...

Journal: :Journal of the American Chemical Society 2005
Alexander V Goponenko Sanford A Asher

We modeled the stimulated hydrogel volume transitions of a material which binds Pb2+ and is used as a photonic crystal chemical sensing material. This material consists of a polymerized crystalline colloidal array (PCCA) hydrogel which contains a crown ether molecular recognition group. The PCCA is a polyacrylamide hydrogel which embeds a crystalline colloidal array (CCA) of monodisperse polyst...

1999
G. J. C. Underwood R. J. Parkes

Measurements of microbial extracellular polymeric substances (EPS) of natural field populations are required to understand the processes of biogenic stabilization and the microbial ecology of intertidal sediments. EPS in sediments can be measured by the phenol-sulfuric acid assay to measure carbohydrate concentration in sediment samples. We conducted comparative studies of storage and extractio...

A. R. Khoshroo M. Mazloum-Ardakani, M. Yavari

Colloidal quantum dots offer broad tuning of semiconductor band structure via the quantum size effect. In this paper, we present a detailed investigation on the influence of the thickness of colloidal lead sulfide (PbS) nanocrystals (active layer) to the photovoltaic performance of colloidal quantum dot solar cells. The PbS nanocrystals (QDs) were synthesized in a non-coordinating solvent, 1-oc...

2014
M. C. Monte M. Sánchez A. Blanco C. Negro J. Tijero

Conventional methods used for the quantification of adherent material contained in a pulp suspension propose either filtration of the sample, which may lead to loss of sticky material in the filtrate, or dilution of the pulp, which may cause destabilization of the dissolved and colloidal material; thus, leading to unreliable results. In 1998, the Cellulose and Paper Group of University Complute...

Journal: :Journal of environmental quality 2004
A J Bednar D B Gent J R Gilmore T C Sturgis S L Larson

Thorium concentrations at Kirtland Air Force Base training sites in Albuquerque, NM, have been previously described; however, the mechanisms of thorium migration were not fully understood. This work describes the processes affecting thorium mobility in this semiarid soil, which has implications for future remedial action. Aqueous extraction and filtration experiments have demonstrated the collo...

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