D. Venkappayya

693 total citations
27 papers, 569 citations indexed

About

D. Venkappayya is a scholar working on Organic Chemistry, Molecular Biology and Oncology. According to data from OpenAlex, D. Venkappayya has authored 27 papers receiving a total of 569 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Organic Chemistry, 9 papers in Molecular Biology and 8 papers in Oncology. Recurrent topics in D. Venkappayya's work include Metal complexes synthesis and properties (8 papers), Microbial Metabolic Engineering and Bioproduction (8 papers) and Inorganic and Organometallic Chemistry (6 papers). D. Venkappayya is often cited by papers focused on Metal complexes synthesis and properties (8 papers), Microbial Metabolic Engineering and Bioproduction (8 papers) and Inorganic and Organometallic Chemistry (6 papers). D. Venkappayya collaborates with scholars based in India. D. Venkappayya's co-authors include R. Manavalan, David Raj Chellappan, D.H. Brown, T. Balasubramanian, G. Aravamudan, S. Sangeetha, K. Geetha, Rajesh Kumar Manavalan, Anwar Kasim and S Kavimani and has published in prestigious journals such as Food and Chemical Toxicology, Talanta and LWT.

In The Last Decade

D. Venkappayya

27 papers receiving 531 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
D. Venkappayya India 12 190 150 149 120 69 27 569
A. Geetha India 15 134 0.7× 114 0.8× 248 1.7× 61 0.5× 50 0.7× 41 733
N. Raaman India 16 212 1.1× 147 1.0× 151 1.0× 45 0.4× 58 0.8× 51 685
Ilija Cvijetić Serbia 16 225 1.2× 100 0.7× 105 0.7× 59 0.5× 24 0.3× 53 583
Grzegorz Świderski Poland 18 359 1.9× 157 1.0× 146 1.0× 65 0.5× 27 0.4× 53 958
Iftikhar Hussain Bukhari Pakistan 18 289 1.5× 136 0.9× 86 0.6× 78 0.7× 30 0.4× 52 945
Susanne Nussbaumer Switzerland 13 117 0.6× 97 0.6× 221 1.5× 118 1.0× 27 0.4× 14 826
Fazli Khuda Pakistan 16 140 0.7× 128 0.9× 143 1.0× 68 0.6× 92 1.3× 55 870
Seema Joshi India 13 299 1.6× 124 0.8× 111 0.7× 74 0.6× 20 0.3× 31 645
Deepika Singh India 15 193 1.0× 50 0.3× 177 1.2× 38 0.3× 63 0.9× 30 748
Abdurrahman Dündar Türkiye 15 102 0.5× 68 0.5× 85 0.6× 45 0.4× 56 0.8× 34 573

Countries citing papers authored by D. Venkappayya

Since Specialization
Citations

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

Fields of papers citing papers by D. Venkappayya

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of D. Venkappayya

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

All Works

20 of 20 papers shown
1.
Kumar, Tarun, et al.. (2014). ESTIMATION OF TOTAL PHENOLIC AND FLAVONOIDS CONTENT FROM EXTRACT OF WRIGHTIA TINCTORIA (ROXB) R. BR. LEAVES AND EVALUATION OF ITS ANTIOXIDANT ACTIVITY. International Journal of Pharma and Bio Sciences. 2 indexed citations
2.
Venkappayya, D., et al.. (2012). An overview of citric acid production. LWT. 50(2). 367–370. 141 indexed citations
3.
Venkappayya, D., et al.. (2010). Beneficial role of β-amyrin from toothbrush tree Salvadora persica in experimental hyperoxaluria.. Asian Journal of Chemistry. 22(8). 6547–6552. 2 indexed citations
4.
Geetha, K., Rajesh Kumar Manavalan, & D. Venkappayya. (2010). Control of urinary risk factors of stone formation by Salvadorapersica in experimental hyperoxaluria. Methods and Findings in Experimental and Clinical Pharmacology. 32(9). 623–623. 14 indexed citations
5.
Manavalan, R., et al.. (2008). Hepatoprotective and antioxidant effects of Commiphora berryi (Arn) Engl bark extract against CCl4-induced oxidative damage in rats. Food and Chemical Toxicology. 46(9). 3182–3185. 96 indexed citations
6.
Naidu, A., et al.. (2008). SYNTHESIS AND BIOLOGICAL EVALUATION OF SOME INDOQUINOXALINE PYRAZOLINES. 3 indexed citations
7.
Venkappayya, D., et al.. (2005). Effect of transition metal ions on the metabolism of Aspergillus niger in the production of citric acid with molasses as substrate. Journal of Scientific & Industrial Research. 64(2). 125–128. 3 indexed citations
8.
Venkappayya, D., et al.. (2005). Natural polymers and their applications. 28 indexed citations
9.
Venkappayya, D., et al.. (2005). Bioconversion of Amorphophallus campanulatus to citric acid by Aspergillus niger-Effect of metal ions on fermentation, modelling studies and correlation of theoretical and experimental parameters. 3 indexed citations
10.
Venkappayya, D., et al.. (2004). Growth kinetics of heavy metal adapted Aspergillus niger during citric acid biosynthesis. Journal of Scientific & Industrial Research. 63(7). 610–613. 4 indexed citations
11.
Manavalan, R., et al.. (2004). Preliminary phytochemical studies on bark of commiphora berryi (arn) engllor.. PubMed. 24(2). 88–91. 4 indexed citations
12.
Venkappayya, D., et al.. (2003). Bioconversion of Colocasia antiquorum and Aponogetonnatans to citric acid by Aspergillus niger: Effect of metal ions and kinetics. Journal of Scientific & Industrial Research. 62(5). 447–452. 4 indexed citations
13.
Sangeetha, S., et al.. (2003). Synthesis of 4-Dicyclohexylaminomethyl Antipyrine and Its Metal Complexes: Spectral Characterization and Evaluation of Thermodynamic Parameters. Russian Journal of Coordination Chemistry. 29(12). 845–851. 18 indexed citations
14.
Venkappayya, D., et al.. (2002). Effect of transition metal cations and anions on the production of citric acid by Aspergillus niger. Indian Journal of Chemical Technology. 9(6). 508–512. 9 indexed citations
15.
Venkappayya, D., et al.. (2002). Synthesis and characterization of cobalt and nickel chelates of 5-dimethylaminomethyl-2-thiouracil and their evaluation as antimicrobial and anticancer agents. Journal of Inorganic Biochemistry. 90(1-2). 22–37. 79 indexed citations
16.
Kasim, Anwar, et al.. (1999). Synthesis, characterisation and antimicrobial activity of metal complexes of N-(1-piperidinobenzyl)acetamide. Zenodo (CERN European Organization for Nuclear Research). 5 indexed citations
17.
Venkappayya, D., et al.. (1991). Studies on Complexes of Copper(II) with 3-Methyl-2,6-diphenylpiperidin-4-one and 3,5-Dimethyl-2,6-diphenylpiperidin-4-one. Zenodo (CERN European Organization for Nuclear Research). 3 indexed citations
18.
Venkappayya, D. & D.H. Brown. (1974). Some metal halide complexes of morpholine-4-thiocarbonic acid anilide. Journal of Inorganic and Nuclear Chemistry. 36(5). 1023–1030. 20 indexed citations
19.
Brown, D.H. & D. Venkappayya. (1973). Some metal complexes of (+)-N-α-methylbenzyldithiocarbamate. Journal of Inorganic and Nuclear Chemistry. 35(6). 2108–2109. 1 indexed citations
20.
Venkappayya, D., et al.. (1970). Stability characteristics of aqueous chloramine-T solutions. Talanta. 17(8). 770–772. 18 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by A. Geetha Breakdown of academic impact, for papers by N. Raaman Breakdown of academic impact, for papers by Ilija Cvijetić Breakdown of academic impact, for papers by Grzegorz Świderski Breakdown of academic impact, for papers by Iftikhar Hussain Bukhari Breakdown of academic impact, for papers by Susanne Nussbaumer Breakdown of academic impact, for papers by Fazli Khuda Breakdown of academic impact, for papers by Seema Joshi Breakdown of academic impact, for papers by Deepika Singh Breakdown of academic impact, for papers by Abdurrahman Dündar
Rankless by CCL
2026