Difei Qiu

659 total citations
18 papers, 506 citations indexed

About

Difei Qiu is a scholar working on Molecular Biology, Radiology, Nuclear Medicine and Imaging and Spectroscopy. According to data from OpenAlex, Difei Qiu has authored 18 papers receiving a total of 506 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Molecular Biology, 11 papers in Radiology, Nuclear Medicine and Imaging and 5 papers in Spectroscopy. Recurrent topics in Difei Qiu's work include Protein purification and stability (13 papers), Monoclonal and Polyclonal Antibodies Research (11 papers) and Glycosylation and Glycoproteins Research (5 papers). Difei Qiu is often cited by papers focused on Protein purification and stability (13 papers), Monoclonal and Polyclonal Antibodies Research (11 papers) and Glycosylation and Glycoproteins Research (5 papers). Difei Qiu collaborates with scholars based in United States, United Kingdom and Germany. Difei Qiu's co-authors include Lawrence W. Dick, Kuang‐Chuan Cheng, David Mahon, Catherine Kim, Mark S. Bolgar, Terence J. Walton, David E. Games, Naresh Chennamsetty, Rajesh Gandhi and Songyan Zheng and has published in prestigious journals such as Analytical Chemistry, Journal of Chromatography A and Journal of Pharmaceutical Sciences.

In The Last Decade

Difei Qiu

18 papers receiving 473 citations

Peers

Countries citing papers authored by Difei Qiu

Since Specialization

Citations

This map shows the geographic impact of Difei Qiu's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Difei Qiu with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Difei Qiu more than expected).

Fields of papers citing papers by Difei Qiu

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Difei Qiu. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Difei Qiu. The network helps show where Difei Qiu may publish in the future.

Co-authorship network of co-authors of Difei Qiu

This figure shows the co-authorship network connecting the top 25 collaborators of Difei Qiu. A scholar is included among the top collaborators of Difei Qiu based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Difei Qiu. Difei Qiu is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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18 of 18 papers shown

#	Work	Indexed citations
1	Characterizing and understanding the formation of cysteine conjugates and other by-products in a random, lysine-linked antibody drug conjugate 2021 ·mAbs ·Difei Qiu, Yande Huang, Naresh Chennamsetty, Scott A. Miller, Michael P. Hay	2
2	Investigation of anomalous charge variant profile reveals discrete pH-dependent conformations and conformation-dependent charge states within the CDR3 loop of a therapeutic mAb 2020 ·mAbs ·(unknown), (unknown), Andrew J. Ilott, Naresh Chennamsetty, Zhihua Liu, Joseph M. Rizzo, Aaron P. Yamniuk, Difei Qiu, (unknown), Mark S. Bolgar	10
3	Cyclization of N-Terminal Glutamic Acid to pyro-Glutamic Acid Impacts Monoclonal Antibody Charge Heterogeneity Despite Its Appearance as a Neutral Transformation 2019 ·Journal of Pharmaceutical Sciences ·(unknown), (unknown), Shujie Lin, Naresh Chennamsetty, Difei Qiu, Mark S. Bolgar	26
4	Comparison of imaged capillary isoelectric focusing and cation exchange chromatography for monitoring dextrose-mediated glycation of monoclonal antibodies in infusion solutions 2018 ·Journal of Chromatography B ·(unknown), (unknown), Difei Qiu, (unknown), (unknown), Mark S. Bolgar, (unknown)	12
5	Improving Mass Spectral Quality of Monoclonal Antibody Middle-Up LC-MS Analysis by Shifting the Protein Charge State Distribution 2018 ·Analytical Chemistry ·(unknown), Difei Qiu, Mark S. Bolgar, Scott A. Miller	8
6	Drug-to-antibody determination for an antibody-drug-conjugate utilizing cathepsin B digestion coupled with reversed-phase high-pressure liquid chromatography analysis 2016 ·Journal of Chromatography A ·(unknown), (unknown), Difei Qiu, (unknown), (unknown), (unknown), Mark S. Bolgar, Amit Katiyar, Girija Krishnamurthy	15
7	Investigating the Degradation Behaviors of a Therapeutic Monoclonal Antibody Associated with pH and Buffer Species 2015 ·AAPS PharmSciTech ·Songyan Zheng, Difei Qiu, Monica Adams, Jinjiang Li, (unknown), Rajesh Gandhi	30
8	A simple reversed phase high-performance liquid chromatography method for polysorbate 80 quantitation in monoclonal antibody drug products 2010 ·Journal of Chromatography B ·(unknown), Lawrence W. Dick, Difei Qiu, (unknown), (unknown), (unknown)	30
9	Isomerization in the CDR2 of a monoclonal antibody: Binding analysis and factors that influence the isomerization rate 2009 ·Biotechnology and Bioengineering ·Lawrence W. Dick, Difei Qiu, (unknown), Kuang‐Chuan Cheng	17
10	Identification and measurement of isoaspartic acid formation in the complementarity determining region of a fully human monoclonal antibody 2009 ·Journal of Chromatography B ·Lawrence W. Dick, Difei Qiu, Kuang‐Chuan Cheng	20
11	Investigation of proteins and peptides from yeastolate and subsequent impurity testing of drug product 2009 ·Biotechnology Progress ·Lawrence W. Dick, (unknown), David Mahon, Difei Qiu, Kuang‐Chuan Cheng	10
12	C‐terminal lysine variants in fully human monoclonal antibodies: Investigation of test methods and possible causes 2008 ·Biotechnology and Bioengineering ·Lawrence W. Dick, Difei Qiu, David Mahon, (unknown), Kuang‐Chuan Cheng	117
13	Peptide mapping of therapeutic monoclonal antibodies: Improvements for increased speed and fewer artifacts 2008 ·Journal of Chromatography B ·Lawrence W. Dick, David Mahon, Difei Qiu, Kuang‐Chuan Cheng	58
14	Evaluation of oligosaccharide methods for carbohydrate analysis in a fully human monoclonal antibody and comparison of the results to the monosaccharide composition determination by a novel calculation 2008 ·Journal of Pharmaceutical and Biomedical Analysis ·(unknown), Difei Qiu, Lawrence W. Dick, Mingyong Zeng, (unknown), Kuang‐Chuan Cheng	16
15	Determination of the origin of the N‐terminal pyro‐glutamate variation in monoclonal antibodies using model peptides 2006 ·Biotechnology and Bioengineering ·Lawrence W. Dick, Catherine Kim, Difei Qiu, Kuang‐Chuan Cheng	95
16	Characterisation of membrane phospholipids and glycolipids from a halophilic archaebacterium by high-performance liquid chromatography/electrospray mass spectrometry 2000 ·Rapid Communications in Mass Spectrometry ·Difei Qiu, (unknown), (unknown), David E. Games, Terence J. Walton	20
17	High-performance liquid chromatography/atmospheric pressure chemical ionization mass spectrometry of phospholipids in Natronobacterium magadii 1999 ·European Journal of Mass Spectrometry ·Difei Qiu, (unknown), Terence J. Walton, (unknown), (unknown)	4
18	Application of high-performance liquid chromatography/electrospray mass spectrometry for the characterization of membrane lipids in the haloalkaliphilic archaebacteriumNatronobacterium magadii 1998 ·Rapid Communications in Mass Spectrometry ·Difei Qiu, (unknown), (unknown), David E. Games, Terence J. Walton	16

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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