Current Members

Principal Investigator

Dr. Xin Yan
Associate Professor
Email: xyan@tamu.edu
Phone: (979) 862 2142

Department of Chemistry
3255 TAMU, 580 Ross St.
College Station, TX 77843
Office: CHEM 1027
Labs: CHEM 1017, 1020, 1021, 1024, 21, 45

Dr. Xin Yan earned her Ph.D. in Chemistry from Purdue University with Prof. Graham Cooks and performed postdoctoral research with Prof. Richard Zare at Stanford University. She joined Texas A&M University as an Assistant Professor in 2018 and was promoted to Associate Professor in 2024. Her research group focuses on reactive microdroplet mass spectrometry and applies it to address the deficiencies in lipidomics and expedite transition metal catalysis discovery. Her research program has been recognized by the NSF CAREER award, NIH MIRA, Sloan Research Fellowship, ACS Arthur F. Findeis Award, IUPAC Emerging Innovator Award, and American Society for Mass Spectrometry (ASMS) Research Award. She also received the Montague Center for Teaching Excellence Scholar Award and the Association of Former Students College-Level Distinguished Teaching Award.

Postdoctoral Associates


Dr. Jiaxin Feng

Postdoctoral Associate
Email: jxfeng@tamu.edu

Office: CHEM 1025

Arrival time: 3/2022



Dr. Feng received her PhD in Chemistry from Tsinghua University. Her research focuses on developing mass spectrometry-based methods for biomolecular analysis. She is currently developing techniques for precise quantification of on-tissue lipids through mass spectrometry imaging. Additionally, She is very interested in designing new isobaric mass tags for quantitative proteomics studies. Outside the lab, She enjoys watching movies and playing games with friends. 


Dr. Ramidi Gopal Reddy

Postdoctoral Associate
Email: ramidigopal@tamu.edu

Office: CHEM 1025

Arrival time: 11/2022



Dr. Reddy was awarded his MS in Organic chemistry by Osmania University, and his PhD in chemical sciences by the CSIR-Indian Institute of Chemical Technology, Hyderabad, India. His research centers on the synthesis of complex natural products, the development of new synthetic methodologies, and process development of API’s. Dr. Reddy's current research interests focus on designing and synthesizing different tag-labels for in-depth lipid structure identification and accurate relative quantification. His hobbies include playing cricket and watching movies. 

Dr. Henadeera Appuhamilage Done Disni Gunasekera

Postdoctoral Associate
Email: disni07@tamu.edu

Office: CHEM 1026

Arrival time: 8/2023



Dr. Gunasekera received her PhD from Wayne State University with Dr. Long Luo. During her PhD studies, she performed electroorganic synthesis using alternating-current electrolysis. Her current research focuses on developing new electrochemical approaches for synthesizing boron-containing compounds and transition metal catalytic reactions. During her free time, she enjoys traveling, spending time with her family and friends, and trying out new food recipes. 

Graduate Students


Xi Chen (Cici)

Graduate Student
Email: cici2019@tamu.edu

Office: CHEM 1025

Arrival time: 8/2019


Xi received her B.S. in Chemistry from Fudan University. Delving into the intricate world of mass spectrometric analysis, she is interested in lipids. Her focus lies in unraveling their structural difference, quantifying their abundance, and unveiling their spatial distribution through mass spectrometry imaging. Also, she aims to illuminate the role these molecules play in biological systems, shedding light on crucial pathways and potential therapeutic targets. In her spare time, she likes to sleep, or simply stay in a quiet place and let her mind wander. She tends to do something repetitive but also creative, such as knitting, to help her relax and refresh.


Dallas Freitas

Graduate Student
Email:dallasf@tamu.edu

Office: CHEM 1025

Arrival time: 8/2019


Dallas obtained a B.S. in Chemistry from the University of Hawaii at Hilo where he studied aberrant calcium signaling in neuroblastoma. Currently, Dallas’s research focuses on the analysis of lipids using surface sampling mass spectrometry techniques such as DESI and LESA, and developing methods to better utilize these existing technologies. Dallas’s research interests include method development for lipidomic studies and novel ionization techniques. In his free time, Dallas likes to play with his dog Winston, sightseeing around Texas, tubing, and playing Overwatch. 


Madison Edwards

Graduate Student
Email: edwar173@tamu.edu

Office: CHEM 1025

Arrival time: 8/2020



Madison holds a B.S. in biochemistry and a B.A. in classical studies from Purdue University. Currently, her research centers on enhancing reactivities at interfaces. She developed an interfacial microreactor to facilitate thin-film electromigration and accelerate surface reactions to enable small-volume biofluid mass spectrometric analyses. Furthermore, as part of the NSF Center for Single-Entity Nanochemistry and Nanocrystal Design, she leverages microdroplet reaction acceleration and develops a high-throughput mass spectrometry platform to examine the impact of nanoparticle heterogeneity on catalytic reactions. Madison's hobbies include baking sourdough, playing games with friends, and hiking.


Syuan-Ting Guo (Alex)

Graduate Student
Email: alexkuo0918@tamu.edu

Office: CHEM 1025

Arrival time: 8/2020


Alex received his B.S. in Chemistry from National Taiwan University. Alex's research interests include native mass spectrometry for biophysical studies, including thermodynamic and kinetic study of enzymatic protein in COVID-19 and oligomerization process of lipidation therapeutic peptides. He is also interested in hydrogen-deuterium exchange mass spectrometry to resolve the regional level dynamic of analyte-of-interest. His hobbies are jogging and weight training.


Erin Hirtzel

Graduate Student
Email: ehirtzel@tamu.edu 

Office: CHEM 1025

Arrival time: 8/2021


Erin received a B.S. in Chemistry from York College of Pennsylvania with minors in French and mathematics. Currently, her research focuses on leveraging aziridination for the characterization and quantification of lipids and augmenting their ionization efficiency. In her work with the NSF Center for Single-Entity Nanochemistry and Nanocrystal Design, she has interfaced high-throughput electrochemistry with mass spectrometry for reaction screening. In her free time, Erin enjoys rock climbing, board games, and digital painting. 


Annesha Sengupta

Graduate Student
Email: asengupta22@tamu.edu

Office: CHEM 1025

Arrival time: 8/2022




Annesha received her B.S. in Chemistry from Drury University. Her research focuses on mass spectrometric method development for lipid structural characterization. She is currently working on the development of novel reaction screening platforms to study transition metal catalysis under both direct and alternate current electrolysis conditions. During her free time, she enjoys dancing and choreographing classical Indian dance forms and painting to destress. 


Hongyuan Yang

Graduate Student
Email: yhy0221@tamu.edu

Office: CHEM 1025

Arrival time: 8/2022


Hongyuan received his B.S. in applied chemistry from Northeastern University. His research interests lie in developing mass spectrometric methods and informatics platforms for lipid structure characterization and quantification, as well as integrating these technologies with biological challenges. Hongyuan likes playing DOTA2 and other video games during his free time. 


Huiying Guo

Graduate Student
Email: huiying@tamu.edu

Office: CHEM 1025

Arrival time: 8/2022


Huiying received her B.S. in Chemistry from the University of Science and Technology of China. Her research focuses on mass spectrometry-based strategies development for lipid metabolic pathways investigation in disease and treatment. Currently, she is working on the development of bioconjugation strategies for single-cell lipid analysis. She‘s a cat person, a real foodie, and enjoys going to concerts. 


Chia-Lung Tsai (Michael)

Graduate Student
michael99663344@tamu.edu

Office: CHEM 1026

Arrival time: 8/2023



Michael received his B.S and M.S in chemistry from National Tsing Hua University. He is interested in lipid identification, peptidomics, and protein-ligand studies using Mass Spectrometry, he is currently focused on developing a novel tag for lipid isomer characterization. His hobbies include working out, driving, and watching movies. His favorite molecule is Galactose.




Li-Cyun Chen (Leon

Graduate Student
leonlicyunchen@tamu.edu

Office: CHEM 1025

Arrival time: 8/2024



Leon received both a B.S. and an M.S. in Chemistry from National Taiwan University, where his research focused on mass spectrometry and advanced imaging techniques like MALDI, DESI, and nanoDESI. During his M.S., he worked on improving MALDI-MSI spatial resolution through tissue expansion and development of MSI sample preparation methods. Currently, he is interested in mass spectrometry, polymer chemistry, and organic chemistry. Outside the lab, he enjoys biking, swimming, photography, and connecting with his worldwide friends through some fun video games. 


Hope Coffinberger

Graduate Student
hcoffinberger@tamu.edu

Office: CHEM 1025

Arrival time: 8/2024



Hope received a B.S. in Pharmaceutical Chemistry from Saint Joseph’s University with a minor in mathematics.  Her previous research focused on methodological development of vacuum Matrix Assisted Ionization MS (vMAI), including use of filter paper as substrate for sample introduction.  Her current research interests include mass spectrometry, and proteomics. Hope enjoys reading comics, playing video games, and baking in her free time. 



Undergraduate Researchers


Joohan Kim

Undergraduate Researcher
Email: joohan427@tamu.edu

Arrival time: 1/2022



Aidan Slagter

Undergraduate Researcher
Email: as88295@tamu.edu

Arrival time: 8/2022



Armani Bedoy

Undergraduate Researcher
Email: armanib00@tamu.edu

Arrival time: 1/2022

 





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