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While the quantum dots appear ordered at the macroscale , their stochastic arrangement at the microscale ( via the inkjetted droplet ) provide the randomness necessary to serve as the key element of a Physical Unclonable Function , essentially transforming the 3D printed object itself as an anti-counterfeiting system .
 macroscale, stochastic, microscale, droplet, as, element, 3D printed, as
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 macroscale, stochastic, microscale, droplet, as, element, 3D printed, as