Sameh Helmy

1.1k total citations · 1 hit paper
8 papers, 861 citations indexed

About

Sameh Helmy is a scholar working on Materials Chemistry, Organic Chemistry and Cellular and Molecular Neuroscience. According to data from OpenAlex, Sameh Helmy has authored 8 papers receiving a total of 861 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Materials Chemistry, 3 papers in Organic Chemistry and 3 papers in Cellular and Molecular Neuroscience. Recurrent topics in Sameh Helmy's work include Photochromic and Fluorescence Chemistry (6 papers), Photoreceptor and optogenetics research (3 papers) and Synthesis of Indole Derivatives (2 papers). Sameh Helmy is often cited by papers focused on Photochromic and Fluorescence Chemistry (6 papers), Photoreceptor and optogenetics research (3 papers) and Synthesis of Indole Derivatives (2 papers). Sameh Helmy collaborates with scholars based in United States and Belgium. Sameh Helmy's co-authors include Javier Read de Alaniz, Craig J. Hawker, Saemi Oh, Frank A. Leibfarth, Justin E. Poelma, Seung Soo Oh, H. Tom Soh, Abigail Knight, G. Leslie Burnett and Michael R. Whittaker and has published in prestigious journals such as Journal of the American Chemical Society, Applied Physics Letters and Chemical Communications.

In The Last Decade

Sameh Helmy

8 papers receiving 853 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.

Photoswitching Using Visible Light: A New Class of Organic Photochromic Molecules

2014 444 citations Sameh Helmy, Frank A. Leibfarth et al. Journal of the American Chemical Society profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Sameh Helmy United States	5	708	378	306	128	125	8	861
James R. Hemmer United States	9	640 0.9×	337 0.9×	305 1.0×	136 1.1×	139 1.1×	14	861
Saemi Oh United States	3	563 0.8×	302 0.8×	245 0.8×	95 0.7×	83 0.7×	3	678
Claire E. Weston United Kingdom	6	791 1.1×	438 1.2×	301 1.0×	103 0.8×	52 0.4×	6	930
Luuk Kortekaas Netherlands	11	818 1.2×	429 1.1×	293 1.0×	151 1.2×	123 1.0×	18	996
Michael Kathan Germany	13	657 0.9×	281 0.7×	585 1.9×	197 1.5×	91 0.7×	17	1.0k
Fynn Röhricht Germany	11	510 0.7×	233 0.6×	295 1.0×	73 0.6×	67 0.5×	17	632
Ron Siewertsen Germany	10	673 1.0×	413 1.1×	260 0.8×	90 0.7×	33 0.3×	10	783
Manuel Utecht Germany	11	670 0.9×	310 0.8×	214 0.7×	90 0.7×	91 0.7×	16	828
Subramani Swaminathan United States	15	469 0.7×	99 0.3×	237 0.8×	135 1.1×	162 1.3×	19	635
V. А. Barachevsky Russia	17	928 1.3×	437 1.2×	527 1.7×	40 0.3×	97 0.8×	147	1.2k

Countries citing papers authored by Sameh Helmy

Since Specialization

Citations

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

Fields of papers citing papers by Sameh Helmy

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sameh Helmy

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

All Works

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8 of 8 papers shown

1.

Helmy, Sameh, et al.. (2021). Using Donor–Acceptor Stenhouse Adducts to Teach Photochromism in the Undergraduate Laboratory. Journal of Chemical Education. 98(5). 1736–1740. 10 indexed citations

2.

Amber, Charis, et al.. (2021). Effect of heteroaromatics on the photochromic properties of Bindone-Aryl SpiroCyclohexadienes. Dyes and Pigments. 194. 109619–109619. 4 indexed citations

3.

Helmy, Sameh, et al.. (2020). The Origins and Growth of Short Range Liquid Propellant Ballistic Rockets. AIAA Propulsion and Energy 2020 Forum. 1 indexed citations

4.

Oh, Seung Soo, Sameh Helmy, Abigail Knight, et al.. (2016). Controlled drug release to cancer cells from modular one-photon visible light-responsive micellar system. Chemical Communications. 52(69). 10525–10528. 120 indexed citations

5.

Mason, Brian P., Michael R. Whittaker, James R. Hemmer, et al.. (2016). A temperature-mapping molecular sensor for polyurethane-based elastomers. Applied Physics Letters. 108(4). 55 indexed citations

6.

Helmy, Sameh. (2015). Design and Development of Donor-Acceptor Stenhouse Adducts: A New Visible Light Activated Photochromic Compound. eScholarship (California Digital Library). 1 indexed citations

7.

Helmy, Sameh, Saemi Oh, Frank A. Leibfarth, Craig J. Hawker, & Javier Read de Alaniz. (2014). Design and Synthesis of Donor–Acceptor Stenhouse Adducts: A Visible Light Photoswitch Derived from Furfural. The Journal of Organic Chemistry. 79(23). 11316–11329. 226 indexed citations

8.

Helmy, Sameh, Frank A. Leibfarth, Saemi Oh, et al.. (2014). Photoswitching Using Visible Light: A New Class of Organic Photochromic Molecules. Journal of the American Chemical Society. 136(23). 8169–8172. 444 indexed citations breakdown →

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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