Contact Information

On campus

I'm located in room 259 of Colburn Lab. If you come up the main staircase in Colburn, once you're at the top of the stairs, you'll want to swing around to the wing behind you on the left.


During the spring and fall semesters, I'm typically on campus from 7:30-4:30 on workdays. Summer is a little less predictable. My calendar below holds all my classes, office hours, and appointments. If there are gaps between "busy" events, I should be available, so feel free to email to set up an appointment or drop in! If my door is open, you're welcome to visit!

Office hours are posted in the calendar below. Please note that these are just the "guaranteed" hours; you are welcome to stop by whenever I am available. The last day for these office hours is the last day of classes.

I have an open-door policy, and I'm usually around my office or elsewhere in Colburn. There's a note on my door if something unusual is happening.

Spring semester office hours run from the first week of February through most of May, except on days when classes are not in session. Fall hours run from late August through mid-December.

Calendar of Appointments

Use the tabs at the upper right of the calendar to switch between week/month/agenda view as necessary. I have tried to force the default to the Eastern time zone, but please note that your personal settings may override this.



Every March and October, I will email the link to my advising appointments to my advising list. If you lose the email or link, please contact me directly. If you miss appointment, please revisit the sign-up page (if appointments are still available) or email me to reschedule (my calendar is below).

I am assigned about thirty students from the Class of 2019 to formally advise, and we will meet in person at least once per semester. If you are not one of my advisees but have questions about the overall curriculum, I am happy to discuss them with you.


E-mail is definitely the best way to make sure you have my attention. I check my e-mail multiple times per day, but not continuously. I try to respond to e-mails within 24 hours during the workweek (and most weekends). Please consider the probability of delays on weekends and holidays (and when I am away for conferences).

Recommendation Letters

Please see here. Please consider what you could expect me to write on your behalf before making any requests. I am typically happy to write letters for you if we have worked together in some significant way so that I can write with specific details that make my recommendation strong.

Mailing Address

Joshua Enszer, Ph.D.
University of Delaware
Department of Chemical & Biomolecular Engineering
150 Academy Street - Colburn Lab
Newark, DE 19716