Robuta

https://vivo.colorado.edu/display/pubid_306759 The contribution of intermolecular forces to phototropic actuation of liquid crystalline elastomers... intermolecular forcescontribution https://www.merriam-webster.com/dictionary/phototropic PHOTOTROPIC Definition & Meaning - Merriam-Webster The meaning of PHOTOTROPIC is of, relating to, or capable of phototropism. definitionmeaningmerriamwebster