4965
The pressure-tight and leak-free fluidic cell enables active and fast switch between liquid photopolymers , even including micro-/nano-particle suspensions , which could potentially lead to facile 3D printing of multi-material metallic/ceramic structures or heterogeneous biomaterials .
 concept or principle: pressure-tight; concept or principle: leak-free; machine or equipment: fluidic cell; material: liquid photopolymers; material: micro-/nano-particle suspensions; material: lead; manufacturing process: 3D printing; concept or principle: multi-material; material: metallic/ceramic; material: heterogeneous biomaterials
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: pressure-tight, leak-free, fluidic cell, liquid photopolymers, micro-/nano-particle suspensions, lead, 3D printing, multi-material, metallic/ceramic, heterogeneous biomaterials 
Answer:
 concept or principle: pressure-tight; concept or principle: leak-free; machine or equipment: fluidic cell; material: liquid photopolymers; material: micro-/nano-particle suspensions; material: lead; manufacturing process: 3D printing; concept or principle: multi-material; material: metallic/ceramic; material: heterogeneous biomaterials