Engineering a Low Environmental Impact Oxygen Generation System Using Algae to Create a Breathable Internal Habitat on Mars

2022 ◽  
Author(s):  
Kara G. Gaiser
Keyword(s):  
Environmental Impact ◽  
Generation System ◽  
Oxygen Generation

The construction of an AIE-based controllable singlet oxygen generation system directed by a supramolecular strategy

2020 ◽  
Vol 56 (53) ◽  
pp. 7301-7304 ◽  
Author(s):  
Weirui Qian ◽  
Minzan Zuo ◽  
Guangping Sun ◽  
Yuan Chen ◽  
Tingting Han ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Aqueous Phase ◽  
Generation System ◽  
Aggregation Induced Emission ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation

An aggregation-induced emission based controllable singlet oxygen generation system has been successfully fabricated in an aqueous phase based on supramolecular host–guest assembly.

A Dynamic Model of a Pressure Swing Oxygen Generation System

1985 ◽  
Vol 107 (2) ◽  
pp. 111-116 ◽  
Author(s):  
J. J. Beaman
Keyword(s):  
Adsorption Process ◽  
Control Synthesis ◽  
Rotary Valve ◽  
Generation System ◽  
Industrial Systems ◽  
Oxygen Generation ◽  
Model Predictions ◽  
Computer Based ◽  
Pressure Swing ◽  
And Control

A full system model for oxygen generation from a pressure swing adsorption process is developed. The system under study has two zeolite packed molecular sieve beds which are cycled with high and low pressure in order to produce oxygen enriched air. These On-Board Oxygen Generation Systems (OBOGS) are to be used for the generation of aircraft crew breathing requirements. These units are much smaller in scale than present industrial systems and are called on to respond to variable demand. These special requirements have led to a reliable computer-based model to simulate the relatively fast transient performance of OBOGS. Besides the two zeolite beds, the system consists of a rotary valve used to cycle the beds, purge orifice, and breathing plenum. The computerized model predictions compare favorably with experiment. The model is presently being used in design and control synthesis studies.

scholarly journals Bacterial growth, communication and guided chemotaxis in 3D bioprinted hydrogel environments

2021 ◽  
Author(s):  
Julia Muller ◽  
Anna C Jakel ◽  
Jonathan Richter ◽  
Markus Eder ◽  
Elisabeth Falgenhauer ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Chemical Interaction ◽  
Fluorescent Proteins ◽  
Three Dimensional ◽  
Spatial Patterning ◽  
Generation System ◽  
Oxygen Generation ◽  
Different Types ◽  
Escherichia Coli Bacteria ◽  
Engineered Bacteria

Bioprinting of engineered bacteria is of great interest for applications of synthetic biology in the context of living biomaterials, but so far only few viable approaches are available for the printing of gels hosting live Escherichia coli bacteria. Here we develop a gentle bioprinting method based on an alginate/agarose bioink that enables precise printing of E.coli into three-dimensional hydrogel structures up to 10 mm in height. Addition of a calcium peroxide-based oxygen generation system enables maturation of fluorescent proteins deep within the printed structures. We utilize spatial patterning with the bioprinter to control different types of chemical interaction between bacteria. We first show quorum sensing-based chemical communication between engineered sender and receiver bacteria placed at different positions inside the bioprint, and then demonstrate the fabrication of barrier structures defined by non-motile bacteria that can guide the movement of chemotactic bacteria inside a gel.

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