C sharp - grab objet in unity

The following code is used to grab objects in Unity, but when the object is grabbed it stops detecting collisions with everything that doesn't have a rigidbody. Can someone help me to prevent this from happening and so that when the object is in my hand it detects collisions?


using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CogerObjeto : MonoBehaviour
{
public GameObject handPoint;

private GameObject pickedObject = null;



// Update is called once per frame
void Update()
{
if (pickedObject != null)
{
if (Input.GetKey("r"))
{
pickedObject.GetComponent<Rigidbody>().useGravity = true;

pickedObject.GetComponent<Rigidbody>().isKinematic = false;

pickedObject.gameObject.transform.SetParent(null);

pickedObject = null;
}


}


}


private void OnTriggerStay(Collider other)
{
if (other.gameObject.CompareTag("Objeto"))
{
if (Input.GetKey("e") && pickedObject == null)
{
other.GetComponent<Rigidbody>().useGravity = false;

other.GetComponent<Rigidbody>().isKinematic = true;

other.transform.position = handPoint.transform.position;

other.gameObject.transform.SetParent(handPoint.gameObject.transform);

pickedObject = other.gameObject;
}
}
}

}