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Ibrahim studied the fabrication of a novel porous electrode scaffold made from stainless steel 316L powder using selective laser sintering by careful selection of process parameters and also how the property such as porosity , electrical conductivity and optical microscopy measurements were used to investigate the properties of the fabricated sample .
 manufacturing process: fabrication; engineering feature: porous electrode scaffold; material: stainless steel; material: powder; manufacturing process: selective laser sintering; concept or principle: process parameters; concept or principle: property; material: as; machanical property: electrical conductivity; process characterization: optical microscopy; concept or principle: properties; concept or principle: fabricated
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 manufacturing process: fabrication; engineering feature: porous electrode scaffold; material: stainless steel; material: powder; manufacturing process: selective laser sintering; concept or principle: process parameters; concept or principle: property; material: as; machanical property: electrical conductivity; process characterization: optical microscopy; concept or principle: properties; concept or principle: fabricated