Chemical & Biological Engineering: Recent submissions
Now showing items 1-20 of 53
-
Light-Based 3D Printing of Hydrogels with High-Resolution Channels
(2019-01)Hydrogels are soft, water-based gels with widespread applications in personal care products, medicine and biomedical engineering. Many applications require structuring the hydrogel into complex three-dimensional (3D) shapes. ... -
Conversion of sugars and biomass to furans using heterogeneous catalysts in biphasic solvent systems
(2018-09)Within the last decade, interest in using biphasic systems for producing furans from biomass has grown significantly. Biphasic systems continuously extract furans into the organic phase, which prevents degradation reactions ... -
Self-paced, Active Problem-Solving Using Immediate Feedback (IF-AT; Scratch-off) Forms in Large Classes
(2018-05)In-class example problems that students work out on their own using active problem-solving are typically well received and help the students better learn the material; however, they are difficult to enact in large classes ... -
Microbial community changes during a toxic cyanobacterial bloom in an alkaline Hungarian lake
(2018-08)The Carpathian Basin is a lowland plain located mainly in Hungary. Due to the nature of the bedrock, alluvial deposits, and a bowl shape, many lakes and ponds of the area are characterized by high alkalinity. In this study, ... -
CD103 (aE integrin) undergoes endosomal trafficking in human dendritic cells, but does not mediate epithelial adhesion
(2018-12)Dendritic cell (DC) expression of CD103, the α subunit of αEβ7 integrin, is thought to enable DC interactions with E-cadherin-expressing gastrointestinal epithelia for improved mucosal immunosurveillance. In the stomach, ... -
Zosteric acid and salicylic acid bound to a low density polyethylene surface successfully control bacterial biofilm formation
(2018-04)The active moieties of the anti-biofilm natural compounds zosteric (ZA) and salicylic (SA) acids have been covalently immobilized on a low density polyethylene (LDPE) surface. The grafting procedure provided new non-toxic ... -
Phosphate starvation response controls genes required to synthesize the phosphate analog arsenate
(2018-05)Environmental arsenic poisoning affects roughly 200 million people worldwide. The toxicity and mobility of arsenic in the environment is significantly influenced by microbial redox reactions, with arsenite (AsIII ) being ... -
A large-scale multiomics analysis of wheat stem solidness and the wheat stem sawfly feeding response, and syntenic associations in barley, Brachypodium, and rice
(2018-02)The wheat stem sawfly (WSS), Cephus cinctus Norton (Hymenoptera: Cephidae), is an important pest of wheat and other cereals, threatening the quality and quantity of grain production. WSS larvae feed and develop inside the ... -
First characterization of a biphasic, switch-like DNA amplification
(2018-03)We report the first DNA amplification chemistry with switch-like characteristics: the chemistry is biphasic, with an expected initial phase followed by an unprecedented high gain burst of product oligonucleotide in a second ... -
Opportunities and Trade-offs among BECCS and the Food, Water, Energy, Biodiversity, and Social Systems Nexus at Regional Scales
(2018-01)Carbon dioxide must be removed from the atmosphere to limit climate change to 2°C or less. The integrated assessment models used to develop climate policy acknowledge the need to implement net negative carbon emission ... -
Competitive resource allocation to metabolic pathways contributes to overflow metabolisms and emergent properties in cross-feeding microbial consortia
(2018-04)Resource scarcity is a common stress in nature and has a major impact on microbial physiology. This review highlights microbial acclimations to resource scarcity, focusing on resource investment strategies for chemoheterotrophs ... -
Spatiotemporal modeling of laser tissue soldering using photothermal nanocomposites
(2017-10)OBJECTIVE: Laser tissue soldering using photothermal solders is a technology that facilitates rapid sealing using heat-induced changes in the tissue and the solder material. The solder material is made of gold nanorods ... -
Quantifying Cathode Water Transport via Anode Relative Humidity Measurements in a Polymer Electrolyte Membrane Fuel Cell
(2017-08)A relative humidity (RH) measurement based on pressure drop analysis is presented as a diagnostic tool to experimentally quantify the amount of excess water on the cathode side of a polymer electrolyte membrane fuel cell ... -
A 21 000-year record of fluorescent organic matter markers in the WAIS Divide ice core
(2017-05)Englacial ice contains a significant reservoir of organic material (OM), preserving a chronological record of materials from Earth's past. Here, we investigate if OM composition surveys in ice core research can provide ... -
Combining existing numerical models with data assimilation using weighted least-squares finite element methods
(2017-01)A new approach has been developed for combining and enhancing the results from an existing computational fluid dynamics model with experimental data using the weighted least-squares finite element method (WLSFEM). Development ... -
Microbial formation of labile organic carbon in Antarctic glacial environments
(2017-04)Roughly six petagrams of organic carbon are stored within ice worldwide. This organic carbon is thought to be of old age and highly bioavailable. Along with storage of ancient and new atmospherically deposited organic ... -
Biofilms on glacial surfaces: hotspots for biological activity
(2016-06)Glaciers are important constituents in the Earth’s hydrological and carbon cycles, with predicted warming leading to increases in glacial melt and the transport of nutrients to adjacent and downstream aquatic ecosystems. ... -
Evaluation of a 2-aminoimidazole variant as adjuvant treatment for dermal bacterial infections
(2017-01)2-Aminoimidazole (2-AI)-based compounds have been shown to efficiently disrupt biofilm formation, disperse existing biofilms, and resensitize numerous multidrug-resistant bacteria to antibiotics. Using Pseudomonas aeruginosa ... -
Effects of Spatial Localization on Microbial Consortia Growth
(2017-01)Microbial consortia are commonly observed in natural and synthetic systems, and these consortia frequently result in higher biomass production relative to monocultures. The focus here is on the impact of initial spatial ... -
Influence of silicon on high-temperature (600°C) chlorosilane interactions with iron
(2017-02)High-temperature (>500 °C) chlorosilane gas streams are prevalent in the manufacture of polycrystalline silicon, the feedstock for silicon-based solar panels and electronics. This study investigated the influence of ...
