Upcoming Group Meetings
Welcome to our group home page! It’s all about interfaces for us!
We are physical/analytical chemistry group with strong emphasis on the development of novel methods towards understanding the uniqueness and complexity of the Nanoworld. We utilize cutting-edge Atomic Force Microscopy (AFM) based techniques to study physical and chemical properties at the nanoscale. Our work is strongly interdisciplinary and collaborative in nature with researchers from other fields of science and engineering.
Our present efforts lie in the following three major research themes:
Nanoscience/Materials Science with the focus on size-dependent electrical, mechanical, and (photo)-reactivity studies that encompass organic and inorganic nano- and macro-dimensional solids with unique properties
Atmospheric/Environmental Chemistry with the focus on the development and application of AFM based methods toward direct measurements of individual submicrometer organic/inorganic aerosol properties that include humidity-dependent 3D morphology, water uptake, and surface tension
Biochemistry/Biophysics with the focus on the development of novel molecular recognition force-based methods to study unbinding interactions between various proteins (e.g. enzymes) and ligands (e.g. drugs, inhibitors) on a single molecule level
Atmospheric/Environmental Chemistry work in our lab is funded by National Science Foundation through center for aerosol impacts on chemistry of the environment (CAICE)
We invite you to explore our site, learn about our exciting research, and join us to discover fascinating chemistry unique to the Nanoworld!
11/18/19 - Congrats to Samantha for successfully defending her master's thesis!
10/21/19 - Congrats to Chathuri (Graduate College Post-comprehensive Research Fellowship) & Al (ACS Regional Graduate Student Award)!
10/07/19 - Congratulations to our long-term collaborator and colleague, Elias Hasenecz from the Stone group, for his 1st first-author publications in ACS Earth and Space Chemistry!
09/03/19 - Our group meetings are open to anyone interested in joining the Tivanski group. Please contact email@example.com if you wish to attend!
09/01/19 - Congratulations to Al for his 1st, first-author publication in ACS Nano letters.
08/01/19 - Congratulations to our former SSTP student, Vishnu, on winning the Best Poster Award at the SSTP Poster Presentation.
07/15/19 - Congratulations to Dr. Kamal K. Ray, for successfully defending his Ph.D. He will continue his academic endeavors as a postdoctoral fellow with Professor Heather Allen, from Ohio State University.
05/20/19 - Congratulations to Kamal for his first, 1st author publication in the journal of Analytical Chemistry!
05/08/19 - Chathuri passed the comprehensive exam. Congratulations!
04/15/19 - The new edition of The Aerosol Times is out!
04/01/19 - Congratulations to Hansol for being selected for the ACS Division of Analytical Chemistry Graduate Fellowship!
02/10/19 - The latest February edition of The Aerosol Times is here!
02/01/19 - Hansol was recently featured in the Loyola University Chicago's Chemistry department news: Link
01/18/19 - Hansol was recently featured in a graduate student spotlight: Link
01/06/19 - Happy new year! The latest edition of The Aerosol Times is here!
12/12/18 - We would like to welcome Al Tiba and Samantha Wigley as the two new graduate students in our group. Welcome!
11/04/18 - Alexei, Hansol and Chathuri participated in the 2018 CAICE Kick-off meeting in San Diego, California!
10/21/18 - Chathuri gave a ACS Midwest regional conference presentation titled, "Impact of dry versus deposition towards quantifying the organic volume fraction of model SSA"
10/15/18 - Thanks to our colleagues in UW-Madison, for inviting us to participate in the annual Wisconsin Science Festival!
10/5/18 - Congrats to Thiranjeewa, for winning the GSS travel award!
9/30/18 - Congratulations to Hansol, who won three awards, GPSG research grant, GPSG travel award, and GSS travel award!
8/29/18 - For those of you interested in our research group, Hansol, Thiranjeewa, and Kamal will give their ACS presentations again on Friday, 9:30 a.m. on the 31st in E231 during our group meeting! Please do not hesitate to email firstname.lastname@example.org if you would like to sit in.
8/24/18 - Kamal gave an ACS Boston National meeting presentation on, "Study of the Phase State and Viscoelastic Properties of Individual Substrate Deposited Model Aerosol Systems by Atomic Force Microscopy'.
8/23/18 - Thiranjeewa gave an ACS Boston National meeting presentation on, "Single Molecule Level Studies of Enzyme-ligand Interactions Using Molecular Recognition Atomic Force Spectroscopy".
8/21/18 - Hansol gave an ACS Boston National meeting presentation on, "Surface Tension Measurements of Model and Nascent SSA Using AFM". Thank you for those who attended the talk! Thiranjeewa and Kamal will also be giving presentations in the next few days.
8/01/18 - We welcome new incoming graduate students! Please do not hesitate to contact us with any questions.
7/27/18 - REU and SSTP students have presented their summer research at the University of Iowa. Thank you for your hard work!
7/01/18 - We welcome James and Riley, who will be participating in the summer SSTP research program in our group!
6/01/18 - We welcome Margaret and Courtney, who will be participating in the summer REU research program in our group!
5/28/18 - Congrats to Thiranjeewa for receiving the Teaching Assistant of the Year award in Principles of Physical Chemistry!
5/20/18 - Alexei and Hansol gave invited talks about aerosol research in San Diego, California for Phase IIA/B CAICE meeting!
4/26/18 - 6th graders from Benton Community schools visited our laboratory and saw how our research makes an impact in the world!
4/22/18 - Tivanski group members participated in the annual Sri Lankan Student Association New Year Festival in Iowa City.
4/6/18 - Happy birthday Chathuri!
4/2/18 - Congrats to Kamal & Hansol for receiving the Graduate College Summer Fellowship!
3/30/18 - Welcome, Maddie to the Tivanski group!
3/22/18 - Our aerosol research was featured on the March edition of The Aerosol Times!
3/9/18 - We welcome the prospective graduate students that are visiting! Please do not hesitate to send us emails or stop by to chat!
2/3/18 - Congrats to Hansol for receiving the Graduate Student Award in Environmental Chemistry Award from ACS!
1/9/18 - Congrats to Hansol for receiving the Local Section Outreach Volunteer of the Year Award from ACS!
12/25/17 - Welcome, Eddie to the Tivanski group!
12/20/17 - Welcome, Chathuri to the Tivanski group!
10/11/17 - Congratulations to Thiranjeewa for winning the Graduate College Post-Comprehensive Research Award!
10/6/17 - Hansol's 3 Minute Thesis titled "Aerosols: Mother Nature's Weapon Against Global Warming"
8/25/17 - Congrats to Hansol for receiving the Certificate of Merit from ACS!
8/25/17 - Kamal, Hansol, and Dr.Tivanski each gave national conference ACS oral presentations about our latest research on sea spray aerosols
8/1/17 - Congrats to Hansol for receiving the Excellence Award for mentoring in the CLEAR program!
7/1/17 - Congrats to Jonic for the "Best Poster" award!
6/9/17 - Kamal's Midwest Organic Solid State Chemistry Symposium titled"Modulation of Electrical Conductivity of Boronic Ester Adduct Host by pi Rich Organic Guests"
5/22/17 - Hansol and Dr.Tivanski fly to San Diego for the CAICE Year 4 site visit from NSF
5/3/17 - Thiranjeewa passed COMPS!
5/1/17 - We welcome Jonic, a highschool student from China, who will be working with us over the summer through the Secondary Student Training Program
4/25/17 - Hansol passed COMPS!
4/24/17 - Thiranjeewa's physical/environmental chemistry seminar titled"Exploring Biomechanical Interactions at the Nanoscale"
4/22/17 - Kamals' Iowa Academy of Science oral presentation titled "Mechanical Properties of Individual Substrate-deposited Sea Spray Aerosol Particles"
4/21/17 - Hansol volunteered as a judge in Iowa Academy of Science to evaluate oral presentations from bright highschool students in Iowa
4/1/17 - Congrats to Kamal, who received Graduate College Summer Fellowship!
3/9/17 - Hansol leaves from Pittcon to Madison for a 2-week long collaborative experiment with colleagues from UC-Davis and UW-Madison
3/8/17 - Hansol's Pittcon talk titled "Measuring Surface Tension from Sub- to Super-Saturated Regimes of Submicrometer SIngle Particles Using AFM"
2/27/17 - Hansol's physical/environmental chemistry seminar titled " From Sea Spray Aerosol to Clouds: Surface Tension from Sub- to Super-Saturated Regimes of Single Particles"