# Calculation of the polymer orientation near a nanoparticle surface

**URL:** <https://gromacs.bioexcel.eu/t/calculation-of-the-polymer-orientation-near-a-nanoparticle-surface/7874>\
**Category:** User discussions\
**Created:** [December 17, 2023, 1:28pm UTC](https://gromacs.bioexcel.eu/t/calculation-of-the-polymer-orientation-near-a-nanoparticle-surface/7874 "2023-12-17T13:28:26Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Narges](https://avatars.discourse-cdn.com/v4/letter/n/7993a0/32.png) [@Narges](https://gromacs.bioexcel.eu/u/Narges)\
**Post date:** [December 17, 2023, 1:28pm UTC](https://gromacs.bioexcel.eu/t/calculation-of-the-polymer-orientation-near-a-nanoparticle-surface/7874/1 "2023-12-17T13:28:26Z")

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GROMACS version:2022.3  
GROMACS modification: Yes/No

Hi all,

I want to study the orientation of polymer chains near a spherical nanoparticle. Is there any command in GROMACS to calculate it directly?