H. Oya Alpar

4.8k total citations · 1 hit paper
103 papers, 3.8k citations indexed

About

H. Oya Alpar is a scholar working on Molecular Biology, Pharmaceutical Science and Immunology. According to data from OpenAlex, H. Oya Alpar has authored 103 papers receiving a total of 3.8k indexed citations (citations by other indexed papers that have themselves been cited), including 49 papers in Molecular Biology, 41 papers in Pharmaceutical Science and 30 papers in Immunology. Recurrent topics in H. Oya Alpar's work include Advanced Drug Delivery Systems (36 papers), RNA Interference and Gene Delivery (29 papers) and Immunotherapy and Immune Responses (20 papers). H. Oya Alpar is often cited by papers focused on Advanced Drug Delivery Systems (36 papers), RNA Interference and Gene Delivery (29 papers) and Immunotherapy and Immune Responses (20 papers). H. Oya Alpar collaborates with scholars based in United Kingdom, Türkiye and United States. H. Oya Alpar's co-authors include Haliza Katas, Jim Eyles, Vincent W. Bramwell, António J. Almeida, Satyanarayana Somavarapu, E. Diane Williamson, E. Diane Williamson, Kwame N. Atuah, Ian D. Spiers and David Lewis and has published in prestigious journals such as Biomaterials, Advanced Drug Delivery Reviews and Journal of Controlled Release.

In The Last Decade

H. Oya Alpar

103 papers receiving 3.7k 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.

Development and characterisation of chitosan nanoparticles for siRNA delivery

2006 511 citations H. Oya Alpar et al. Journal of Controlled Release profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
H. Oya Alpar United Kingdom	34	1.6k	1.5k	843	578	408	103	3.8k
Thomas R. Tice United States	22	890 0.5×	1.2k 0.8×	599 0.7×	625 1.1×	329 0.8×	39	3.0k
Sarah Hook New Zealand	35	1.5k 0.9×	1.0k 0.7×	950 1.1×	529 0.9×	211 0.5×	116	3.5k
Carlos Gamazo Spain	40	1.7k 1.0×	975 0.7×	908 1.1×	603 1.0×	470 1.2×	132	5.2k
Pål Johansen Switzerland	39	1.3k 0.8×	821 0.6×	1.8k 2.2×	316 0.5×	386 0.9×	115	4.9k
Richard M. Gilley United States	20	863 0.5×	1.0k 0.7×	809 1.0×	382 0.7×	453 1.1×	31	2.8k
Camilla Foged Denmark	44	3.4k 2.1×	1.2k 0.8×	1.9k 2.2×	908 1.6×	704 1.7×	129	6.3k
Gideon Kersten Netherlands	44	2.6k 1.6×	1.7k 1.1×	1.8k 2.2×	342 0.6×	1.1k 2.6×	125	6.3k
Michael J. Wannemuehler United States	43	1.9k 1.2×	512 0.3×	2.0k 2.3×	464 0.8×	939 2.3×	177	5.4k
Jay K. Staas United States	16	699 0.4×	830 0.6×	726 0.9×	222 0.4×	436 1.1×	20	2.2k
Bram Slütter Netherlands	35	1.6k 1.0×	976 0.7×	2.1k 2.4×	311 0.5×	348 0.9×	81	3.7k

Countries citing papers authored by H. Oya Alpar

Since Specialization

Citations

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

Fields of papers citing papers by H. Oya Alpar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by H. Oya Alpar. 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 H. Oya Alpar. The network helps show where H. Oya Alpar may publish in the future.

Co-authorship network of co-authors of H. Oya Alpar

This figure shows the co-authorship network connecting the top 25 collaborators of H. Oya Alpar. A scholar is included among the top collaborators of H. Oya Alpar 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 H. Oya Alpar. H. Oya Alpar 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

Alpar, H. Oya, et al.. (2009). An investigation into the combination of low frequency ultrasound and liposomes on skin permeability. International Journal of Pharmaceutics. 379(1). 139–142. 21 indexed citations

Alpar, H. Oya, et al.. (2008). Transcutaneous immunisation assisted by low-frequency ultrasound. International Journal of Pharmaceutics. 368(1-2). 123–128. 35 indexed citations

Florindo, Helena F., et al.. (2008). Streptococcus equi antigens adsorbed onto surface modified poly-ɛ-caprolactone microspheres induce humoral and cellular specific immune responses. Vaccine. 26(33). 4168–4177. 36 indexed citations

Singh, J. B., et al.. (2006). Diphtheria toxoid loaded poly-(ε-caprolactone) nanoparticles as mucosal vaccine delivery systems. Methods. 38(2). 96–105. 82 indexed citations

Elvin, Stephen J., et al.. (2005). Protection against bubonic and pneumonic plague with a single dose microencapsulated sub-unit vaccine. Vaccine. 24(20). 4433–4439. 25 indexed citations

Alpar, H. Oya. (2003). Strategies for Vaccine Delivery. Journal of drug targeting. 11(8-10). 459–461. 4 indexed citations

Atuah, Kwame N., E. Walter, Hans P. Merkle, & H. Oya Alpar. (2003). Encapsulation of plasmid DNA in PLGA-stearylamine microspheres: A comparison of solvent evaporation and spray-drying methods. Journal of Microencapsulation. 20(3). 387–399. 17 indexed citations

Alpar, H. Oya & Vincent W. Bramwell. (2002). Current Status of DNA Vaccines and Their Route of Administration;. Critical Reviews in Therapeutic Drug Carrier Systems. 19(4-5). 307–384. 24 indexed citations

Alpar, H. Oya, et al.. (2001). Intranasal vaccination against plague, tetanus and diphtheria. Advanced Drug Delivery Reviews. 51(1-3). 173–201. 79 indexed citations

10.

Eyles, Jim, E. Diane Williamson, Ian D. Spiers, & H. Oya Alpar. (2000). Protection studies following bronchopulmonary and intramuscular immunisation with Yersinia pestis F1 and V subunit vaccines coencapsulated in biodegradable microspheres: a comparison of efficacy. Vaccine. 18(28). 3266–3271. 28 indexed citations

11.

Eyles, Jim, E. Diane Williamson, Ian D. Spiers, et al.. (2000). Generation of protective immune responses to plague by mucosal administration of microsphere coencapsulated recombinant subunits. Journal of Controlled Release. 63(1-2). 191–200. 30 indexed citations

12.

Eyles, Jim, E. Diane Williamson, & H. Oya Alpar. (1999). Immunological responses to nasal delivery of free and encapsulated tetanus toxoid: studies on the effect of vehicle volume. International Journal of Pharmaceutics. 189(1). 75–79. 47 indexed citations

13.

Conway, Barbara R. & H. Oya Alpar. (1997). Single and Coencapsulation of lnterferon-γ in Biodegradable PLA Microspheres for Optimization of Multicomponent Vaccine Delivery Vehicles. Drug Delivery. 4(2). 75–80. 3 indexed citations

14.

Alpar, H. Oya, et al.. (1997). Potential of particulate carriers for the mucosal delivery of DNA vaccines. Biochemical Society Transactions. 25(2). 337S–337S. 9 indexed citations

15.

Conway, Barbara R. & H. Oya Alpar. (1996). Double emulsion microencapsulation of proteins as model antigens using polylactide polymers : effect of emulsifier on the microsphere characteristics and release kinetics. European Journal of Pharmaceutics and Biopharmaceutics. 42(1). 42–48. 35 indexed citations

16.

Conway, Barbara R. & H. Oya Alpar. (1996). Co-encapsulation of proteins into PLA microspheres. University of Huddersfield Repository (University of Huddersfield). 2 indexed citations

17.

Conway, Barbara R. & H. Oya Alpar. (1996). Co‐encapsulation of Proteins into Polylactide Microspheres. Pharmacy and Pharmacology Communications. 2(4). 173–176. 3 indexed citations

18.

Almeida, António J. & H. Oya Alpar. (1996). Nasal Delivery of Vaccines. Journal of drug targeting. 3(6). 455–467. 95 indexed citations

19.

Alpar, H. Oya, et al.. (1994). Preparation, properties and the effects of free and liposomal tobramycin on siderophore production by Pseudomonas aeruginosa. Journal of Antimicrobial Chemotherapy. 34(1). 43–52. 8 indexed citations

20.

Almeida, António J., H. Oya Alpar, & Michael R. Brown. (1993). Immune Response to Nasal Delivery of Antigenically Intact Tetanus Toxoid Associated with Poly(l-lactic acid) Microspheres in Rats, Rabbits and Guinea-pigs. Journal of Pharmacy and Pharmacology. 45(3). 198–203. 103 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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