1. J Chen, CL Horton, RM Metzger, “Isothermal cycles of the n-docosanol monolayer: effect of temperature & targeted surface pressure”, 93rd ACS Colloid & Surface Science Symposium, June 2019, Atlanta, GA
2. J Chen, “Top-down analysis of β-lactoglobulin involving disulfide bond cleavages”, 67th ASMS Conference on Mass Spectrometry, June 2019, Atlanta, GA
3. J Chen, S Panthi, “Lipidomic analysis of meibomian gland secretions from the tree shrew: identification of candidate tear lipids critical for reducing evaporation”, ARVO 2019, Apr. 2019, Vancouver, BC, Canada
4. J Chen, “Characterizing cysteine modifications in β-lactoglobulin by top-down mass spectrometry”, 66th ASMS Conference on Mass Spectrometry, June 2018, San Diego, CA
5. J Chen, KK Nichols, JJ Nichols, “Untargeted mass spectrometry analysis of lipids in human tears”, ARVO 2018, Apr. 2018, Honolulu, HI (selected as a “hot topic” by the Conference, top 2% of all posters).
6. J Meadows, J Chen, KK Nichols, “The effects of omega-6:omega-3 fatty acid ratios on the lipidome from human meibomian gland epithelial cells treated with and without 13-cis retinoic acid”, ARVO 2018, Apr. 2018, Honolulu, HI
7. J Chen, “Quantifying tear lipid molecules by mass spectrometry for dry eye studies”, Spring 2018 BME Seminar Series, Department of Biomedical Engineering, University of Alabama at Birmingham, Feb. 2018, Birmingham, AL (Oral)
8. J Meadows, J Chen, KK Nichols, “Evaluation of trypsin-free collection techniques to optimize lipidomic analysis of immortalized human meibomian gland epithelial cells in culture”, The American Academy of Optometry’s 95th Annual Meeting, Oct. 2017, Chicago, IA (Oral)
9. J Chen, KK Nichols, “Characterizing human meibum by shotgun lipidomics, MS/MSall and successive polarity switching”, 65th ASMS Conference on Mass Spectrometry, June, 2017, Indianapolis, IN
10. J Chen, KK Nichols, “Chain length and saturation levels of molecular species of neutral lipids in dry eye patients”, ARVO 2017, May 2017, Baltimore, MD
11. J Meadows, J Chen, KB Green, JJ Nichols, KK Nichols, “Relation between dietary fat intake and meibum lipids”, The American Academy of Optometry’s 95th Annual Meeting, Nov., 2016, Anaheim, CA
12. J Chen, KK Nichols, “Compositional analysis of ω-hydroxy fatty acid-based diesters in human meibum”, TFOS 2016, September, 2016, Montpellier, France
13. J Meadows, J Chen, KB Green, JJ Nichols, KK Nichols, “Toward an understanding of the roles of meibum lipids and dietary fat in dry eye diseases”, The 8th International Conference on the Tear Film & Ocular Surface: Basic Science and Clinical Relevance, September, 2016, Montpellier, France
14. J Chen, KB Green, KK Nichols, “Differentially expressed nonpolar lipids in meibum of dry eye: Post-menopausal women vs. contact lens-wearers”, 64th ASMS Conference on Mass Spectrometry, June, 2016, San Antonio, TX
15. J Chen, KK Nichols, “Composition of diesters in human meibum”, ARVO 2016, June, 2016, Seattle, WA
16. J Meadows, J Chen, K Dionne, KK Nichols, “Identification of lipid species produced by differentiated immortalized human meibomian gland epithelial cells”, ARVO 2016, May, 2016, Seattle, WA
17. S Panthi, J Chen, L Wilson, JJ Nichols, “Evaluation of extraction and mass spectrometry methods for detection of possible lipid mediators of inflammation in tears”, ARVO 2016, May, 2016, Seattle, WA
18. J Chen, KK Nichols, “Shotgun lipidomic analysis of human meibum by MS/MSall with successive switching between positive and negative detection modes”, Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, Mar., 2016, Atlanta, GA (Oral)
19. J Meadows, J Chen, K Basso, K Nichols, “Differential expression of lipid species in human meibum across dry eye subgroups”, The American Academy of Optometry’s 94th Annual Meeting, Oct., 2015, New Orleans, LA
20. J Chen, KB Green, KK Nichols, “Label-free quantification of isomeric wax esters by direct infusion ESI MS/MS: a study of human meibomian gland secretions”, 63rd ASMS Conference on Mass Spectrometry, May, 2015, Saint Louis, MS
21. J Chen, J Keirsey, KB Green, KK Nichols, “Differentially expressed non-polar lipids in human meibum of dry eye disease”, ARVO 2015, May, 2015, Denver, CO
22. CK Postnikoff, J Chen, J Keirsey, KB Green, KK Nichols, “Altered regulation of expressed polar meibum lipids in dry eye disease”, ARVO 2015, May, 2015, Denver, CO
23. J Chen, “Major lipid species in human meibomian gland secretions: identification and quantification by mass spectrometry”, University of Alabama at Birmingham Vision Science Research Center Seminar, Oct. 2014, Birmingham, AL (Oral)
24. J Chen, Basso KB, Nichols KK, “Absolute quantification of major neutral lipid species in human meibum by direct infusion ESI-MS ”, 11th Annual Ohio Valley Mass Spectrometry Symposium, Apr., 2014, Columbus, OH (Oral)
25. KK Nichols, J Chen, KB Green, “Identification of lipid biomarkers for dry eye disease in post-menopausal women using shot-gun electrospray mass spectrometry”, 7th International Conference on the Tear Film & Ocular Surface: Basic Science and Clinical Relevance, Sept., 2013, Taormina, Sicily, Italy
26. M Apasega, J Chen, KK Nichols, JJ Nichols, KB Green, “Identification of lipid bio-markers for dry eye disease in post-menopausal women using shotgun electrospray mass spectrometry”, 61st ASMS Conference on Mass Spectrometry, June, 2013, Minneapolis, MN
27. KB Green, J Chen, M Apasega, KK Nichols, JJ Nichols, “Identification of lipid biomarkers for dry eye disease in post-menopausal women using shotgun electrospray mass spectrometry”, Metabolomics Seminar, August, 2012, Columbus, OH
28. J Chen, P Shiyanov, LW Zhang, JJ Schlager, KB Green, “Identification and characterization of phosphorylated proteins by combined top-down MS/MS and MS3 analysis”, 60th ASMS Conference on Mass Spectrometry, May, 2012, Vancouver, CA
29. KK Nichols, J Chen, M Apasega, JJ Nichols, KB Green, “Identification of lipid biomarkers for dry eye disease in post-menopausal women using shotgun electrospray mass spectrometry”, ARVO 2012, May, 2012, Fort Lauderdale, FL
30. J Chen, KB Green, KK Nichols, “Double bond effect on collision-induced dissociation of wax esters in electrospray ionization mass spectrometry analysis”, Pittsburgh Conference 2012, March, 2012, Orlando, FL
31. J Chen, P Shiyanov, JJ Schlager, KB Green-Church, “Pseudo MS3 analysis of protein precursor ions in absence of mobile protons via electrospray ionization and quadrupole time-of-flight mass spectrometry”, 59th ASMS Conference on Mass Spectrometry, June, 2011, Denver, CO
32. J Chen, KB Green-Church, KK Nichols, “Sensitive detection of nonpolar lipids in human meibomian gland secretions via shotgun electrospray ionization-mass spectrometry”, LIPID MAPS Annual Meeting 2011: Lipidomics Impact on Cell Biology, Cancer, and Metabolic Diseases, May, 2011, San Diego, CA
33. J Chen, P Shiyanov, JJ Schlager, KB Green-Church, “Pseudo MS3 analysis of a native disulfide-bonded protein via ESI-Q-TOF mass spectrometry: formation of uncommon types of product ions ”, 8th Annual Ohio Valley Mass Spectrometry Symposium, Apr., 2011, Columbus, OH (Oral)
34. J Chen, P Shiyanov, JJ Schlager, KB Green-Church, “Top-down pseudo MS3 analysis of a native disulfide-bonded protein: fragmentation characteristics in absence of mobile protons and application for protein identification via database search”, 23rd ASMS Sanibel Conference on Mass Spectrometry, Jan., 2011, St. Petersburg Beach, FL
35. J Chen, KB Green-Church, KK Nichols, “Sodium iodide as an additive for sensitive ESI-MS analysis of neutral lipids in human meibomian gland secretions”, 14th ASMS Asilomar Conference on Mass Spectrometry, Oct., 2010, Pacific Grove, CA
36. J Chen, LW Zhang, P Shiyanov, JJ Schlager, KB Green-Church, “Top-down characterization of a native highly intra-linked protein: concurrent cleavages of disulfide and protein backbone bonds”, 58th ASMS Conference on Mass Spectrometry, May, 2010, Salt Lake City, UT
37. J Chen, LW Zhang, P Shiyanov, JJ Schlager, KB Green-Church, “Top-down characterization of a 14 kDa protein highly knotted with four disulfide bonds”, 7th Annual Ohio Valley Mass Spectrometry Symposium, Apr., 2010, Columbus, OH (Oral)
38. J Chen, KB Green-Church, KK Nichols, “MS and MS/MS analysis of human meibum lipids with electrospray ionization”, 36th FACSS Conference, Oct., 2009, Louisville, KY
39. J Chen, RL Pitsch, NJ DelRaso, KB Green-Church, JJ Schlager, P Shiyanov, “Exploring biomarkers in rat urine for α-naphthylisothiocyanate induced cholestasis”, 57th ASMS Conference on Mass Spectrometry, May, 2009, Philadelphia, PA
40. KB Green-Church, J Chen, KK Nichols, “Identification of individual lipid components in human meibomian gland secretions with high resolution mass spectrometry”, ARVO 2009 Annual Meeting, May, 2009, Fort Lauderdale, FL
41. J Chen, KB Green-Church, KK Nichols, “Lipidomic analysis of human meibomian gland secretions with electrospray ionization mass spectrometry”, 6th Annual Ohio Valley Mass Spectrometry Symposium, Apr., 2009, Columbus, OH (Oral)
42. J Chen, KB Green-Church, KK Nichols, “Identification of components of major lipid classes in human meibomian gland secretions with electrospray ionization mass spectrometry analysis”, 21st ASMS Sanibel Conference on Mass Spectrometry, Jan., 2009, St. Petersburg Beach, FL
43. J Chen, NK Kaiser, Y Carella, H Huff, JE Bruce, “Top-down analysis of modifications on cysteine 34 of albumin in human serum samples”, 56th ASMS Conference on Mass Spectrometry, June, 2008, Denver, CO (Oral)
44. J Chen, GR Munske, XT Tang, NK Kaiser, Y Carella, H Huff, JE Bruce, “Identification of cysteine 34 amino acid modifications on albumin in human serum samples”, 55th ASMS Conference on Mass Spectrometry, June, 2007, Indianapolis, IN
45. J Chen, DS Hage, “Quantitative analysis of allosteric effects in biological systems: a new approach based on high-performance affinity”, 30th International Symposium on High Performance Liquid Phase Separations and Related Techniques, June, 2006, San Francisco, CA (Oral)
46. J Chen, DM Simeone, DM Lubman, “Serum protein profiling for detection of pancreatic cancer”, 54th ASMS Conference on Mass Spectrometry, May, 2006, Seattle, WA
47. J Chen, DM Simeone, DM Lubman, “Exploring serum biomarkers for pancreatic cancer by prefractionation, 2D-LC separation and mass spectrometry identification”, 53rd ASMS Conference on Mass Spectrometry, June, 2005, San Antonio, TX
48. DS Hage, J Chen, “Quantitative studies of allosteric drug-protein interactions by high performance affinity chromatography: development and evaluation of a new universal model”, 28th International Symposium on High Performance Liquid Phase Separations and Related Techniques, June, 2004, Philadelphia, PA
49. J Chen, DS Hage, “Studies of allosteric interactions and drug-protein binding by high-performance affinity chromatography: a new universal model”, 14th International Symposium on Pharmaceutical and Biomedical Analysis, Sept., 2003, Orlando, FL (Oral)
50. J Chen, DS Hage, “Development of a new approach for the determination of solution phase binding constants by affinity chromatography: studies of drug binding to soluble beta-cyclodextrin on an immobilized HSA column”, Nebraska Academy of Sciences, Apr., 2003, Lincoln, NE (Oral)
51. J Chen, C Ohnmacht, DS Hage, “Studies of phenytoin binding to human serum albumin by high performance affinity chromatography”, Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, Mar., 2003, Orlando, Florida
52. J Chen, C Ohnmacht, DS Hage, “Studies of phenytoin binding to human serum albumin by high performance affinity chromatography”, 37th Midwest Regional American Chemical Society Meeting, Oct., 2002, Lawrence, KS (Oral)
53. J Chen, C Ohnmacht, DS Hage, “Examination of phenytoin binding to human serum albumin by high performance affinity chromatography”, 26th International Symposium on High Performance Liquid Phase Separations and Related Techniques, June, 2002, Montreal, Canada
54. J Chen, C Ohnmacht, DS Hage, “Studies of phenytoin binding to human serum albumin by high performance affinity chromatography”, 36th Midwest Regional American Chemical Society Meeting, Oct., 2001, Lincoln, NE
55. DS Hage, J Chen, “Determination of protein-drug dissociation rates by the peak-decay method”, 14th International Symposium on Affinity Interactions, Apr., 2001, San Carlos, Sonora, Mexico