get_posts filtering by post_name

Replies: 1

I’m trying to get the latest post filtering by post_name but I’m getting all posts and no filtering is being applied:

$args = array(
    'post_type' => 'sla_slider',
	'tax_query' => array(
        array(
          'taxonomy' => 'category_tax',
          'field' => 'id',
          'terms' => 35, //pages
          'include_children' => false
        )
      ),
		'post_name' => 'molecular-services', //it doesn't filter
      	'posts_per_page' => 1,
        'orderby' => 'date',
        'order' => 'DESC'
        );
$posts = get_posts($args);

Any idea of where I’m doing wrong? Tks!