Skip to main content

McLean Research Group Announcements

Amelia Taylor and Sael Sohni Receive Undergraduate Research Awards


Undergraduate researcher Amelia Taylor receives the Merck Index Award and the Outstanding Chemistry Research Award, and undergraduate researcher Sael Sohni receives the Department’s Analytical Chemistry Award. Congratulations!

Congratulations to Dr. Davis and Dr. Harris on Their Successful Dissertation Defense


Dr. Don Davis’ dissertation is titled “Multidimensional Separations in Complex Biological Matrices Utilizing Chromatography, Ion Mobility, and Mass Spectrometry.”

Dr. Rachel Harris’ dissertation is titled “Analysis of Biopolymers Using Structurally Selective Analytical Techniques in Combination with Mass Spectrometry”.

John McLean Leads Arts and Science Grand Challenge Initiative


Prof. McLean leads the recently launched Advancing Solutions to Climate and Ecological Needs and Discoveries (ASCEND) Initiative. It is one of six Grand Challenge Initiatives supported by the College of Arts and Science.

Read more…

Congratulations to Dr. Poland and Dr. Picache for Successfully Defending Their Dissertation


Dr. James Poland dissertation (Defended February 2020) is titled “Method Development towards Probing the Gut Metabolome using Reverse Phase Liquid Chromatography-Ion Mobility-Mass Spectrometry.”

Dr. Jackie Picache’s dissertation is titled “Strategies for Improving Multiomic Metabolite Identifications Using Compound Libraries, Machine Learning, and Structural Mass Spectrometry”.

Katie Leaptrot Given 2020 Postdoc Honorable Mention Award


Dr. Leaptrot has received a Postdoc Honorable Mention Award from the Vanderbilt Postdoctoral Association and Office of Postdoctoral Affairs for her scientific work and mentoring efforts.

Read more…

McLean Research Group Featured in Chemical & Engineering News


The lab is featured in a news article that appeared today in C&EN and highlights IM-MS technologies along with the Unified Collision Cross Section Compendium initiated in the McLean lab.

Amelia Taylor Receives EAS Student Research Award


Another big congrats to undergraduate student Amelia Taylor for winning a Student Research Award for the Eastern Analytical Symposium!

McLean Research Group Retools for Hand Sanitizer Production


In collaboration with Prof. Janet Macdonald, the McLean Group (Andrzej Balinski and Prof. John McLean) are leveraging their chemical expertise to produce hand sanitizer for Vanderbilt and the greater Nashville area.

The chemical formulations utilized in these efforts yield a high-quality product that exceeds current FDA regulations and WHO recommendations for compounding gels with high antiviral efficacy.

An initial production run of 80 gallons has been completed, with additional product available upon request.

See the MyVU story …

Amelia Taylor Named Goldwater Scholar


Congratulations to undergraduate student Amelia Taylor for receiving a Goldwater Scholarship!

Read more…

McLean Group in Minimal Operation Status


In response to the COVID-19 pandemic, the McLean Research Group has transitioned to remote, off-campus operational status, effective immediately. We have enacted a Continuity of Operation Plan to ensure continued maintenance and upkeep of critical research instrumentation and infrastructure. Weekly group meetings have transitioned to a virtual format, and we are continuing to work on manuscripts, grants, and data workups remotely.

Bailey Rose Receives 2020 Graduate Student Travel Award from the American Society for Mass Spectrometry (ASMS)


Bailey was selected to receive a 2020 ASMS Graduate Student Travel Award. Go meet her at the annual ASMS conference!

Jaqueline Picache Named Runner Up for Prize for Research Excellence


Congratulations to Jackie Picache for becoming the runner-up for the Richard N. Armstrong Prize for Research Excellence in Chemical Biology Research!

She will present her work this afternoon at the Student Research Symposium organized by the Vanderbilt Institute of Chemical Biology: See the Event Page

Jackie Picache presenting her work at ASMS. (Photo courtesy of Dr. Katie Leaptrot)

Jaqueline Picache Receives American Society for Mass Spectrometry (ASMS) Graduate Student Travel Award


Graduate student Jackie Picache has been presented an ASMS Graduate Student Travel Award to this year’s ASMS conference for her work on the Unified Collision Cross Section (CCS) Compendium.

A webcast of her presentation titled “Development of a Unified Collision Cross Section Compendium for Compound Annotation and Chemical Class Prediction” can be found here:

The McLean Research Group Members Presenting at the 2019 ASMS Conference


The following McLean Research Group members will be presenting at the 2019 American Society for Mass Spectrometry (ASMS) Conference:

Oral Presentations (Webcast Link):

Bailey S. Rose “Integrated Multidimensional Liquid Chromatography-Ion Mobility-Tandem Mass Spectrometry (LC-IM-MS/MS) Workflow for High Confidence Annotations in Global Untargeted Lipidomics”,
Jody C. May “Advanced Temporal Multiplexing and Peak Deconvolution for Improved Sensitivity and Resolution in Ion Mobility-Mass Spectrometry Analysis”,
Katrina L. Leaptrot “Conformational Lipid Atlas for High Confidence Lipidomics”,
Jaqueline A. Picache “Development of a Unified Collision Cross Section Compendium for Compound Annotation and Chemical Class Prediction”

Poster Presentations:

Berkley M. Ellis “Bacteria Fight Club: Mapping Microbial Interactions for Drug Discovery”,
Don E. Davis, Jr. “Biomarker Discovery and Validation for Delirium Syndrome Using Mass Spectrometry-Based Metabolomics Analysis of Serum Samples”,
Rachel A. Harris “Evaluation of Surface Induced Dissociation in Conjunction with Ion Mobility-Mass Spectrometry for Lipid Structural Characterization”,
Emanuel Zlibut “Copper Complexation Strategies for Differentiating Amino Acid Enantiomers by Ion Mobility”

Berkley Ellis and Jaqueline Picache Given International Poster Award in Vietnam


Jackie Picache and Berk Ellis were awarded 1st Place for presenting their research at the 2019 Analytica Trade Fair in Ho Chi Minh City in Vietnam.

Dr. Leaptrot Receives Best Poster Award at 13th Annual VPA Symposium


We are proud to announce that McLean Research Group postdoc, Katie Leaptrot, received a Best Poster Award for presenting her work on high confidence lipidomics at the 2019 Vanderbilt Postdoctoral Association’s (VPA) Symposium.

Read more about her work here:


Congratulations to Drs. Caleb Morris and Tiffany Crescentini!

Both McLean Group graduate students successfully defended their dissertation work. Dr. Morris’ dissertation is titled “Molecular Descriptor on the Basis of Structural Analysis in Ion Mobility-Mass Spectrometry”. Dr. Crescentini’s dissertation is titled “Mass Spectrometry: An Approach to Characterizing Polyurethane Polymers”.

Don E. Davis, Jr. Selected for MSACL 2019 US Young Investigator Educational Grant


McLean Research Group graduate student Don E. Davis, Jr. will receive one of this year’s U.S. Young Investigator Educational Grants for the Mass Spectrometry: Applications in the Clinical Lab (MSACL) Annual Conference.

Center for Innovative Technology Launches LinkedIn Page


The Center for Innovative Technology (CIT; Director: Prof. John A. McLean) provides full-service small molecule omics analyses at Vanderbilt University and for external collaborators and has now launched a LinkedIn page in addition to their website.

To get updates about the CIT, follow them here:

Jaqueline Picache Receives ASMS Fall Workshop Travel Award


Jackie recently received a travel award from the American Society for Mass Spectrometry to attend the Fall Workshop about “Metabolomics Informatics“.

Jackie Picache

Jaqueline Picache Awarded V-CBI Training Grant


We are pround to announce that Jackie has been awarded a Vanderbilt Chemistry-Biology Interface (V-CBI) Training Award by Vanderbilt Institute for Chemical Biology under NIH grant 5T32GM065086. Five out of 16 nominated students were selected for a one-year appointment. Her project is entitled “Development of the Biomedical Integrated Online Profiler for Real-time Omics (BIOPRO) to Probe Biochemical Unknowns”.

Read more here:

Dr. James Dodds

Congratulations to Dr. James N. Dodds!


James successfully defended his dissertation entitled “Investigation of Separation Strategies for Bioanalytical Methods: Chromatography, Ion Mobility, and Mass Spectrometry”.

McLean Research Group Releases Unified Collision Cross Section Compendium


The Compendium is an online interactive tool that utilizes empirically-measured ion mobility collision cross sections to annotate molecular signals from untargeted experiments.

Launch the interactive CCS Compendium can be accessed here:

Jaqueline A. Picache, Bailey S. Rose, Andrzej Balinski, Katrina L. Leaptrot, Jody C. May, Stacy D. Sherrod, and John A. McLean, “Collision Cross Section Compendium to Annotate and Predict Multi-omic Compound Identities”, Chemical Science 10, 983-993 (2018). DOI: 10.1039/C8SC04396E.

Nadjali A. Chung Awarded Vanderbilt Institute of Chemical Biology (VICB) Fellowship


New McLean Group member Nadjali has received a Vanderbilt Institute of Chemical Biology Fellowship from Vanderbilt University. Great work, Nadjali!

Don E. Davis, Jr.

Don E. Davis, Jr. Receives Graduate Assistance in Areas of National Need (GAANN) Fellowship


Don has recently been awarded a Graduate Assistance in Areas of National Need Fellowship by the Department of Education. Congratulations, Don!

Bailey S. Rose Awarded Vanderbilt Institute of Chemical Biology (VICB) Fellowship


Bailey just received a Vanderbilt Institute of Chemical Biology Fellowship from Vanderbilt University. Congratulations, Bailey!

Welcome Emanuel Zlibut, Bailey Rose, and Nadjali Chung to the McLean Research Group!


We are glad to welcome Mr. Emanuel Zlibut, Ms. Bailey Rose, and Ms. Nadjali Chung as new graduate students in the McLean Group.

From left to right: Isaiah Speight (Hanusa lab, VU), NOBCChE president Dr. Emanuel Waddell (University of Alabama, Huntsville), Vanderbilt Professor Dr. Renã A. S. Robinson; Don E Davis, Jr. (McLean Research Group), and Marsalas D. Whitaker (Co-Founder of SweetBio, Inc.)

Don E. Davis, Jr. Elected as Treasurer for Nashville Chapter of the National Organization for the Professional Advancement of Black Chemists and Chemical Engineers (NOBCChE)


We are pleased to announce that McLean Research Group graduate student Don E. Davis, Jr. was recently elected to serve on the executive board of the local NOBCChE chapter in the position of Treasurer. Congratulations, Don!

Bailey S. Rose

Bailey S. Rose Receives Mitchum E. Warren Graduate Research Fellowship


McLean Research Group graduate student Bailey Rose just received a Mitchum Warren Fellowship from Vanderbilt University. Congratulations, Bailey!

Jackie Picache

Welcome Jaqueline Picache to the McLean Research Group!


We have recently welcomed Jackie Picache as a new graduate student into the McLean Group.

Jackie’s research will focus on high content, high throughput phenotypic profiling assay for in vitro/vivo systems utilizing fluorescent microscopy and high resolution mass spectrometry.

Center for Innovative Technology Launches Website


The Center for Innovative Technology (CIT; Director: Prof. John A. McLean) is a full-service, collaborative molecular omics analytical facility specializing in a range of cutting edge mass spectrometry and confocal microscopy techniques.

For more information regarding our capabilities and services, please visit our website: