Get value from Database to send email Laravel

Email send is working but using a query to get the user's email value, the email send does not work and no error is showing also this is what I've tried

This is working:

    use PHPMailer\PHPMailer;
    
    use Mail;
    
    use Illuminate\Database\Eloquent\Model;
    
    use Illuminate\Support\Facades\DB;
    
        class userController extends Controller
        {

    public function user_send_email_caller(Request $request)
    {     
            $username = session()->get('username');

            Mail::send('mail', array('name'=> $username), function($message)  {
            $message
            ->from('email@example.com', 'test')
            ->to('email@example.com', 'name')
            ->subject('subject');
         });
    }
}

This one with query doesn't work

    use PHPMailer\PHPMailer;
    
    use Mail;
    
    use Illuminate\Database\Eloquent\Model;
    
    use Illuminate\Support\Facades\DB;
    
        class userController extends Controller
        {

    public function user_send_email_caller(Request $request)
    {     
          $email = DB::table('sample_table')->select('user_email')->where('id_user','=', 
          '1')->get();

            Mail::send('mail', array('name'=> $email), function($message)  {
            $message
            ->from('email@example.com', 'test')
            ->to('email@example.com', 'name')
            ->subject('subject');
         });  
    }
}

via Chebli Mohamed