I am required to work from home as a result of either campus closure or self-isolation, am I able to charge supplies related to telework (e.g., laptop, printer, office supplies, etc.) to a grant? 

These types of expenses are considered administrative costs (indirect costs), and generally are not appropriate as a direct cost unless specifically approved by the sponsor. You may wish to talk with your supervisor about your needs in order to be set up to work remotely.