J Lenfeld

504 total citations
20 papers, 437 citations indexed

About

J Lenfeld is a scholar working on Organic Chemistry, Molecular Biology and Pharmacology. According to data from OpenAlex, J Lenfeld has authored 20 papers receiving a total of 437 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Organic Chemistry, 7 papers in Molecular Biology and 5 papers in Pharmacology. Recurrent topics in J Lenfeld's work include Berberine and alkaloids research (3 papers), Plant-based Medicinal Research (3 papers) and Analytical Chemistry and Chromatography (2 papers). J Lenfeld is often cited by papers focused on Berberine and alkaloids research (3 papers), Plant-based Medicinal Research (3 papers) and Analytical Chemistry and Chromatography (2 papers). J Lenfeld collaborates with scholars based in Czechia, Germany and United Kingdom. J Lenfeld's co-authors include V. Preininger, Jiří Slavík, V. Šimánek, Zuzana Bı́lková, Ian R. Dunkin, David C. Sherrington, Daniel Horák, J. Churáček, Marcela Slováková and O. Motl and has published in prestigious journals such as Polymer, Rapid Communications in Mass Spectrometry and Journal of Chromatography B.

In The Last Decade

J Lenfeld

18 papers receiving 415 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J Lenfeld Czechia	7	199	134	68	62	61	20	437
Graham Foster United Kingdom	10	242 1.2×	237 1.8×	29 0.4×	62 1.0×	35 0.6×	10	453
K. Gbewonyo United States	13	342 1.7×	76 0.6×	194 2.9×	35 0.6×	44 0.7×	22	558
Barbara Podobnik Slovenia	9	317 1.6×	70 0.5×	43 0.6×	88 1.4×	26 0.4×	12	595
Rokuro Okamoto Japan	17	287 1.4×	239 1.8×	37 0.5×	123 2.0×	26 0.4×	49	643
Neal Connors United States	17	458 2.3×	290 2.2×	97 1.4×	78 1.3×	24 0.4×	25	651
Pavel Kyslı́k Czechia	18	602 3.0×	50 0.4×	78 1.1×	111 1.8×	28 0.5×	56	764
Nilesh Rai India	15	142 0.7×	177 1.3×	99 1.5×	140 2.3×	31 0.5×	35	612
Yoichi Mikami Japan	15	470 2.4×	45 0.3×	38 0.6×	151 2.4×	25 0.4×	77	708
Keiko Komagoe Japan	14	250 1.3×	50 0.4×	104 1.5×	81 1.3×	14 0.2×	25	647
Mushtaq A. Aga India	15	201 1.0×	91 0.7×	49 0.7×	36 0.6×	28 0.5×	27	453

Countries citing papers authored by J Lenfeld

Since Specialization

Citations

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

Fields of papers citing papers by J Lenfeld

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J Lenfeld

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

All Works

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20 of 20 papers shown

Kuchař, Ladislav, Befekadu Asfaw, J Lenfeld, et al.. (2010). Semisynthesis of C17:0 isoforms of sulphatide and glucosylceramide using immobilised sphingolipid ceramide N‐deacylase for application in analytical mass spectrometry. Rapid Communications in Mass Spectrometry. 24(16). 2393–2399. 10 indexed citations

Korecká, Lucie, Zuzana Bı́lková, Milan J. Beneš, et al.. (2004). Utilization of newly developed immobilized enzyme reactors for preparation and study of immunoglobulin G fragments. Journal of Chromatography B. 808(1). 15–24. 34 indexed citations

Bı́lková, Zuzana, Marcela Slováková, Daniel Horák, J Lenfeld, & J. Churáček. (2002). Enzymes immobilized on magnetic carriers: efficient and selective system for protein modification. Journal of Chromatography B. 770(1-2). 177–181. 61 indexed citations

Beneš, Michal, et al.. (1996). Diazotizable supports of potential interest as affinity chromatography matrices. Journal of Molecular Recognition. 9(5-6). 701–705. 4 indexed citations

Dunkin, Ian R., J Lenfeld, & David C. Sherrington. (1993). Molecular imprinting of flat polycondensed aromatic molecules in macroporous polymers. Polymer. 34(1). 77–84. 39 indexed citations

Cerná, H, Brigitte Fiala, Pavel Jansa, et al.. (1989). Antiphlogistics in periodontology.. PubMed. 123. 293–302. 1 indexed citations

Lenfeld, J, František Švec, & J. Kálal. (1986). Reactive polymers. LII. Periodate oxidation of poly(2,3‐epoxypropyl methacrylate) bound onto porous glass. Acta Polymerica. 37(1). 31–36. 1 indexed citations

Lenfeld, J & O. Motl. (1986). Antiinflammatory Activity of Conyza canadensis. Planta Medica. 52(5). 430–431. 1 indexed citations

Lenfeld, J, František Švec, & J. Kálal. (1986). Reactive polymers. LV. Periodate oxidation of poly(2,3‐epoxypropyl methacrylate) bound onto silica gel. Acta Polymerica. 37(6). 377–381. 6 indexed citations

10.

Ulrichová, Jitka, et al.. (1986). Comparison of biological activity of some benzo (c)-phenanthridine alkaloids and their structural analogs.. PubMed. 113. 401–7. 1 indexed citations

11.

Lenfeld, J, et al.. (1986). Anti-inflammatory activity of extracts from Conyza canadensis.. PubMed. 41(4). 268–9. 28 indexed citations

12.

Dautzenberg, H., F. Loth, J. Štamberg, & J Lenfeld. (1985). Perlcellulose mit einpolymerisiertem Polyethylenmethacrylattoluensulfonat – Ein neues reaktives Trägermaterial. Acta Polymerica. 36(2). 87–91. 3 indexed citations

13.

Cerná, H, et al.. (1984). Isoquinoline alkaloids in local periodontal disease therapy (preliminary notice).. PubMed. 107. 159–62. 3 indexed citations

14.

Lenfeld, J, et al.. (1982). Surface oriented mercuration of poly(vinylaromatics). Reactive Polymers Ion Exchangers Sorbents. 1(1). 47–50. 2 indexed citations

15.

Ulrichová, Jitka, et al.. (1982). ChemInform Abstract: INHIBITION OF LIVER ALANINE AMINOTRANSFERASE ACTIVITY BY SOME BENZOPHENANTHRIDINE ALKALOIDS. Chemischer Informationsdienst. 13(7). 1 indexed citations

16.

Lenfeld, J, et al.. (1981). Reactive polymers. XLI. Preparation of poly(2,3‐epoxypropyl methacrylate) on silica gel. Acta Polymerica. 32(12). 753–757. 7 indexed citations

17.

Lenfeld, J, et al.. (1981). Antiinflammatory Activity of Quaternary Benzophenanthridine Alkaloids fromChelidonoum majus*,**. Planta Medica. 43(10). 161–165. 232 indexed citations

18.

Lenfeld, J. (1959). [Effect of rat's age and sex on the course of inflammation and on phenylbutazone sensitivity].. PubMed. 8(2). 133–4. 1 indexed citations

19.

Lenfeld, J, et al.. (1958). [Effect of emetine in herpes zoster].. PubMed. 13(2). 71–6. 1 indexed citations

20.

Lenfeld, J, et al.. (1955). [Experimental and clinical investigation of antirheumatic effects of Convallaria and Adonis].. PubMed. 94(27). 738–42. 1 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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