John Gregory

11.6k total citations · 4 hit papers
117 papers, 9.2k citations indexed

About

John Gregory is a scholar working on Water Science and Technology, Industrial and Manufacturing Engineering and Physical and Theoretical Chemistry. According to data from OpenAlex, John Gregory has authored 117 papers receiving a total of 9.2k indexed citations (citations by other indexed papers that have themselves been cited), including 68 papers in Water Science and Technology, 22 papers in Industrial and Manufacturing Engineering and 16 papers in Physical and Theoretical Chemistry. Recurrent topics in John Gregory's work include Coagulation and Flocculation Studies (59 papers), Electrostatics and Colloid Interactions (16 papers) and Minerals Flotation and Separation Techniques (10 papers). John Gregory is often cited by papers focused on Coagulation and Flocculation Studies (59 papers), Electrostatics and Colloid Interactions (16 papers) and Minerals Flotation and Separation Techniques (10 papers). John Gregory collaborates with scholars based in United Kingdom, China and United States. John Gregory's co-authors include Jinming Duan, Mehmet Ali Yükselen, Wenzheng Yu, Sándor Bárány, Luiza C. Campos, Peter Jarvis, S.A. Parsons, Bruce Jefferson, Charles R. O’Melia and Hongxiao Tang and has published in prestigious journals such as Nature, Circulation and Nature Communications.

In The Last Decade

John Gregory

113 papers receiving 8.7k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Coagulation by hydrolysing metal salts

2003 1.4k citations John Gregory et al. Advances in Colloid and Interface Science profile →
Approximate expressions for retarded van der waals interaction

1981 705 citations John Gregory Journal of Colloid and Interface Science profile →
A review of floc strength and breakage

2005 594 citations Peter Jarvis, Bruce Jefferson et al. Water Research profile →
Rates of flocculation of latex particles by cationic polymers

1973 366 citations John Gregory Journal of Colloid and Interface Science profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
John Gregory United Kingdom	46	5.8k	2.1k	1.6k	941	939	117	9.2k
Charles R. O’Melia United States	39	4.0k 0.7×	783 0.4×	1.4k 0.9×	804 0.9×	883 0.9×	79	7.1k
Jacques Buffle Switzerland	58	2.2k 0.4×	1.1k 0.5×	1.5k 0.9×	1.8k 1.9×	902 1.0×	232	11.7k
Peter J. Scales Australia	49	2.3k 0.4×	781 0.4×	1.6k 1.0×	141 0.1×	1.1k 1.2×	237	7.7k
Denis M. O’Carroll Canada	46	2.5k 0.4×	576 0.3×	3.4k 2.1×	1.1k 1.1×	160 0.2×	124	7.9k
Constantinos V. Chrysikopoulos Greece	48	2.5k 0.4×	542 0.3×	763 0.5×	319 0.3×	263 0.3×	149	5.6k
Desmond F. Lawler United States	29	3.7k 0.6×	525 0.3×	2.5k 1.6×	376 0.4×	111 0.1×	118	5.6k
Zhaohui Li China	63	4.7k 0.8×	1.3k 0.6×	2.1k 1.3×	871 0.9×	123 0.1×	484	15.6k
A.J. Karabelas Greece	54	4.9k 0.9×	462 0.2×	4.2k 2.6×	349 0.4×	153 0.2×	238	8.9k
William A. Arnold United States	60	3.3k 0.6×	1.2k 0.6×	2.5k 1.6×	3.1k 3.3×	221 0.2×	277	12.9k
J. Hoigné Switzerland	17	5.0k 0.9×	1.6k 0.8×	1.0k 0.6×	2.1k 2.2×	214 0.2×	28	7.9k

Countries citing papers authored by John Gregory

Since Specialization

Citations

This map shows the geographic impact of John Gregory'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 John Gregory with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John Gregory more than expected).

Fields of papers citing papers by John Gregory

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John Gregory. 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 John Gregory. The network helps show where John Gregory may publish in the future.

Co-authorship network of co-authors of John Gregory

This figure shows the co-authorship network connecting the top 25 collaborators of John Gregory. A scholar is included among the top collaborators of John Gregory 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 John Gregory. John Gregory is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Graham, Nigel, et al.. (2025). Benzene Ring-Driven Metal Hydrolysis and Floc Formation in Coagulation: Mechanistic Insights from Organic Structural Units. Environmental Science & Technology. 59(45). 24619–24630.

Yang, Bingqian, Long Tian, Peng Zhou, et al.. (2025). Nanonet trapping for effective removal of nanoplastics by iron coagulation. Nature Communications. 16(1). 5998–5998. 5 indexed citations

Sibbald, R. Gary & John Gregory. (2025). Connecting Wound Bed Preparation 2024, Therapeutic Index, and Covert and Overt Infection. Advances in Skin & Wound Care. 38(1). 53–55.

Chiu, Ernest S., et al.. (2023). Debridement: Technical Considerations and Treatment Options for the Interprofessional Team. Advances in Skin & Wound Care. 36(4). 180–187. 9 indexed citations

Moruzzi, Rodrigo Braga, et al.. (2020). Nonintrusive investigation of large Al-kaolin fractal aggregates with slow settling velocities. Water Research. 185. 116287–116287. 27 indexed citations

Moruzzi, Rodrigo Braga, et al.. (2017). Fractal dimension of large aggregates under different flocculation conditions. The Science of The Total Environment. 609. 807–814. 70 indexed citations

Gregory, John & Sándor Bárány. (2011). Adsorption and flocculation by polymers and polymer mixtures. Advances in Colloid and Interface Science. 169(1). 1–12. 382 indexed citations

Yu, Wenzheng, John Gregory, & Luiza C. Campos. (2011). Breakage and re-growth of flocs: Effect of additional doses of coagulant species. Water Research. 45(20). 6718–6724. 59 indexed citations

Liu, Ting, Zhonglin Chen, Wenzheng Yu, Jimin Shen, & John Gregory. (2011). Effect of two-stage coagulant addition on coagulation-ultrafiltration process for treatment of humic-rich water. Water Research. 45(14). 4260–4268. 78 indexed citations

10.

Sam, Susan, et al.. (2010). The Effect of Ozone on the Reversibility of Floc Breakage: Suspensions with High Humic Acid Content. Ozone Science and Engineering. 32(6). 435–443. 5 indexed citations

11.

Yu, Wenzheng, et al.. (2010). Effect of Coagulation and Applied Breakage Shear on the Regrowth of Kaolin Flocs. Environmental Engineering Science. 27(6). 483–492. 19 indexed citations

12.

Yu, Wenzheng, John Gregory, & Luiza C. Campos. (2010). Breakage and re-growth of flocs formed by charge neutralization using alum and polyDADMAC. Water Research. 44(13). 3959–3965. 70 indexed citations

13.

Gregory, John. (2009). Optical monitoring of particle aggregates. Journal of Environmental Sciences. 21(1). 2–7. 19 indexed citations

14.

Gregory, John. (2008). Monitoring particle aggregation processes. Advances in Colloid and Interface Science. 147-148. 109–123. 213 indexed citations

15.

Jarvis, Peter, Bruce Jefferson, John Gregory, & S.A. Parsons. (2005). A review of floc strength and breakage. Water Research. 39(14). 3121–3137. 594 indexed citations breakdown →

16.

Yükselen, Mehmet Ali & John Gregory. (2002). Breakage and Re-formation of Alum Flocs. Environmental Engineering Science. 19(4). 229–236. 66 indexed citations

17.

Gregory, John. (1993). Review OF Chemistry of the Solid-Water Interface. Processes at the Mineral-Water and Particle-Water Interface in Natural Systems, by Werner Stumm.. Journal of Colloid and Interface Science. 159(2). 520–520. 2 indexed citations

18.

Gregory, John. (1978). KINETIC ASPECTS OF POLYMER ADSORPTION AND FLOCCULATION. UCL Discovery (University College London). 1 indexed citations

19.

Gregory, John. (1977). STABILITY AND FLOCCULATION OF COLLOIDAL PARTICLES. UCL Discovery (University College London). 9 indexed citations

20.

Gregory, John. (1976). EFFECT OF CATIONIC POLYMERS ON COLLOIDAL STABILITY OF LATEX-PARTICLES. UCL Discovery (University College London). 3 indexed citations

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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