Professor Ricardo Martinez-Botas on his 60th birthday Matei Ignuta-Ciuncanu, Maria Barrera-Medrano, Adrian Bejan, Teng Cao, Colin Copeland, Aaron Costall, Umit Gunes, Karl Hohenberg, Monica Marinescu, Peter Newton, Gregory Offer, Srithar Rajoo, Guillermo Rein, Miles Robertson, Alessandro Romagnoli, Mary Ryan, Nilay Shah, Philip Tabor, Billy Wu, William Worek, Bijie Yang International Communications in Heat and Mass Transfer, 2026
Review: recent developments in 2D MXene-filled bioinspired composites for biomedical applications Yuksel Akinay, Mehmet Topuz, Umit Gunes, Muhammet Enver Gokdemir, Tayfun Cetin Journal of Materials Science, 2025 Two-dimensional carbide- and nitride-based MXene materials have become some of the most studied materials in interdisciplinary fields due to their superior properties. This review comprehensively discusses recent advances in MXene materials such as bioinspired coating films, scaffolds, and electrochemical activities for use in biomedical fields. MXene consists of multilayer 2D nitride, carbide, or carbonitride flakes with excellent electrical conductivity, large surface area, and good mechanical properties. Bibliometric studies have revealed a sharp increase in the number of publications and citations, having reached 15,831 records as of February 2025. Notably, the number of citations surged from under 20 in 2012 to over 222,000 in 2024. Due to being two-dimensional materials with superior physicochemical and biological properties, MXenes are also being increasingly used in biomedical and engineering applications. They have been reported to be ideal for such biomedical applications as corrosion-resistant biofilms, biocompatibility, low toxicity, drug delivery, and tissue engineering. In addition, MXene-based scaffolds have emerged as a promising material for bone tissue engineering due to their extraordinary mechanical durability, biocompatibility, and adjustable surface properties. By aiding tissue regeneration and preventing infections, MXene scaffolds have also been found to exhibit enhanced drug delivery and antibacterial properties. Recent advances in materials science have focused on creating bioinspired structures with multifunctionality. Taking into account MXenes’ multilayered structures and functional surfaces, unique physicochemical properties have been designed by learning from nature to produce bioinspired materials. This article comprehensively reviews biomedical applications of such 2D MXene materials as bioinspired coating films, scaffolds as biosensors, drug delivery, cancer treatments, and tissue regeneration. Graphical abstract
Marine energy conversion Ibrahim Ozsari, Veysi Bashan, Umit Gunes, Asim Sinan Karakurt Comprehensive Energy Systems, 2025
Constructal law in energy transport and utilization Umit Gunes International Communications in Heat and Mass Transfer, 2024 Economies around the world are greatly affected by global transport. The movement of freight between starting and end points can occur in numerous different ways that each have their own unique positive and negative aspects. While studies on transportation need to involve optimization, this alone is insufficient due to how any specific optimization only applies to an optimal value for a specific time period. Transportation models have dynamic structures that necessitate having decision makers also consider how time factors into their policies. Constructal law is a method that can allow models for international transportation to be simplified by applying the results of Constructal law regarding the configuration of river deltas to the question of how best to set up a few large and many small transport modes for a given route, which in air transport can be referred to as the hub and spokes model. This article investigates a transport model based on having a small number of large and many small modes of transport and uses yearly data.
Freedom, design and evolution A. Bejan, U. Gunes, G. Grisolia, U. Lucia, D.C. Baciu International Communications in Heat and Mass Transfer, 2024
Thermal Energy Storage in Phase Change Materials—A Bibliometric Approach S. Senthilraja, Umit Gunes, Mohamed M. Awad Phase Change Materials for Thermal Energy Management and Storage Fundamentals and Applications, 2024 Most nations rely on phase change materials (PCMs) to satisfy their energy needs because of their unique ability to retain and liberate energy via a change in phase. In this chapter, a bibliometric analysis is conducted to review the articles published on thermal energy storage using different PCMs. In this chapter, 8212 relevant articles published from 1975 to 2022 were collected from the Scopus database, and the bibliometric analysis was carried out using VOSviewer and Biblioshiny tools. The results of this study can reduce many issues in renewable energy systems. This chapter also suggests suitable keywords for young scholars to retrieve and continue their study in this energy storage field. This result helps the young researchers understand PCMs and their applications in energy storage.
Locomotion rhythm makes power and speed A. Bejan, U. Gunes, H. Almahmoud Scientific Reports, 2023 This article addresses two questions, why certain animals (frogs, breaststroke swimmers, hovering fliers, jellyfish) push rapidly against the surrounding fluid and then reach forward slowly, and whether this rhythm of propulsion is a manifestation of the universal phenomenon of design evolution in nature. Emphasis is on the distribution of time periods of locomotion in which, during the driving phase of cyclic movement (the motive stroke, phases 1 and 2, in alternating sequence with the dissipative stroke, phase 3), the work is generated (phase 1) and dissipated (phase 2). The relative lengths of the characteristic times t1 and t2 of the phases 1 and 2, are predicted. The relative duration of the proposed three phases of a cycle is the ‘rhythm’. The analysis is based on a model of how the effective cross-sections of the stroking body parts impact the surrounding medium, water, or air, and the total power required to account for the kinetic energy losses during phases 2 and 3, which are due to drag forces posed by the surrounding medium. The body configuration (limbs' cross-sections) determines the limbs' velocities that maximize mean power, and the times t1 and t2 within the motive stroke. Emphasis is placed on the freedom to change the evolving design. Freedom is represented in two ways: the number of degrees of freedom in changing the dimensions of the model and its deformation in time, and the effect that evolutionary changes have on the access that the body has to its available space. Freedom to change the locomotion design leads to greater power and speed.
Professor Adrian Bejan on his 75th birthday José L. Lage, William M. Worek, Cristina H. Amon, Mohamed M. Awad, Tanmay Basak, Yildiz Bayazitoglu, Tunde Bello-Ochende, Cesare Biserni, Jocelyn Bonjour, Romano Borchiellini, Erdal Çetkin, Jordan Charles, Yanyu Chen, W.K. Chow, Jack Chun, Vitor Costa, Weizhong Dai, İbrahim Dinçer, Marcelo Errera, Amir Faghri, Hooman Farzaneh, Louis Gosselin, Giulia Grisolia, Umit Gunes, Heinz Herwig, G.F. Jerry Jones, Shigeo Kimura, F.A. Kulacki, Calvin Li, Xianguo Li, Jong S. Lim, Noam Lior, Pedro Litsek, Sylvie Lorente, Giulio Lorenzini, Umberto Lucia, Oronzio Manca, Pezhman Mardanpour, Josua P. Meyer, Antonio Miguel, Luiz Fernando Milanez, Alexandru M. Morega, Tatiana Morosuk, Yuri S. Muzychka, Arunn Narasimhan, Greg F. Naterer, Juan Ordonez, G.P. Bud Peterson, Antônio Heitor Reis, Luiz A.O. Rocha, Bahri Sahin, Dusan P. Sekulic, Wojciech Stanek, George Tsatsaronis, Peter Vadasz, José V. Vargas, C.Y. Wen, Houlei Zhang, Yuwen Zhang, Zongqin Zhang International Communications in Heat and Mass Transfer, 2023
Thermodynamics 2.0: Bridging the natural and social sciences Ram Poudel, Jon McGowan, Georgi Y. Georgiev, Emmanuel Haven, Umit Gunes, Hongkun Zhang Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences, 2023
The effect of size on entropy generation for waste heat recovery boiler ECOS 2019 Proceedings of the 32nd International Conference on Efficiency Cost Optimization Simulation and Environmental Impact of Energy Systems, 2019
Performance analysis of a steam power plant with district heating ECOS 2016 Proceedings of the 29th International Conference on Efficiency Cost Optimisation Simulation and Environmental Impact of Energy Systems, 2016
Professor Ricardo Martinez-Botas on his 60th birthday M Ignuta-Ciuncanu, M Barrera-Medrano, A Bejan, T Cao, C Copeland, ... International Communications in Heat and Mass Transfer, 111407 , 2026 2026
Constructal thinking: Geospatial and temporal focal points of activity. DC Baciu, L Wolf, MR Errera, VB de Oliveira, U Gunes BioSystems, 105784 , 2026 2026
Review: recent developments in 2D MXene-filled bioinspired composites for biomedical applications Y Akinay, M Topuz, U Gunes, ME Gokdemir, T Cetin Journal of Materials Science, 1-30 , 2025 2025 Citations: 22
Marine energy conversion I Ozsari, V Başhan, Ü GÜNEŞ, A KARAKURT Elsevier , 2025 2025 Citations: 1
Evolution of Maritime Technology: Advancements in Ship Design U Gunes 14th Constructal Law Conference | 10-11 October 2024, Bucharest, Romania … , 2024 2024
25 Years of Constructal Thinking: How Global Dissemination Has Grown from a Single Tree to a Network of Trees DANC BACIU, S KAJAREKAR, MR ERRERA, U GUNES 14th Constructal Law Conference | 10-11 October 2024, Bucharest, Romania … , 2024 2024
Evolution and irreversibility: Two distinct phenomena and their distinct laws of nature A Bejan, H Almahmoud, U Gunes, HE Fakhari, P Mardanpour Physics of Life Reviews 50, 103-116 , 2024 2024 Citations: 16
Freedom, design and evolution A Bejan, U Gunes, G Grisolia, U Lucia, DC Baciu International Communications in Heat and Mass Transfer 156, 107667 , 2024 2024 Citations: 1
Constructal law in energy transport and utilization U Gunes International Communications in Heat and Mass Transfer 156, 107591 , 2024 2024 Citations: 14
Thermal Energy Storage in Phase Change Materials—A Bibliometric Approach S Senthilraja, U Gunes, MM Awad Phase Change Materials for Thermal Energy Management and Storage … , 2024 2024
Professor Adrian Bejan on his 75th birthday JL Lage, WM Worek, CH Amon, MM Awad, T Basak, Y Bayazitoglu, ... International Communications in Heat and Mass Transfer 149, 107162 , 2023 2023
Proceedings 12th of the Constructal Law Conference U Gunes, A Bejan, U Lucia, G Grisolia, A Morega Yildiz Technical University , 2023 2023
Locomotion rhythm makes power and speed A Bejan, U Gunes, H Almahmoud Scientific Reports , 2023 2023 Citations: 5
Evolutionary design with freedom - Fin shapes and entrance length channels for heat sinks A Bejan, H Almahmoud, U Gunes International Communications in Heat and Mass Transfer 147, 106946 , 2023 2023 Citations: 17
Current challenges and future prospects in AOPs P Biswal, U Gunes, MM Awad Advanced Oxidation Processes for Micropollutant Remediation, 215-227 , 2023 2023
Recent progress of electromagnetic wave absorbers: a systematic review and bibliometric approach A Yuksel, U Gunes, B Colak, T Cetin ChemPhysMater 2 (3), 197-206 , 2023 2023 Citations: 123
Thermodynamics 2.0: Bridging the natural and social sciences R Poudel, J McGowan, GY Georgiev, E Haven, U Gunes, H Zhang Philosophical Transactions of the Royal Society A: Mathematical, Physical … , 2023 2023 Citations: 12
Social sciences and energy research interactions U Gunes Philosophical Transactions of the Royal Society A: Mathematical, Physical … , 2023 2023 Citations: 3
Evolution of heat transfer in phase change material S Senthilraja, U Gunes, MM Awad Phase Change Materials for Heat Transfer, 249-265 , 2023 2023
Estimating bulk carriers’ main engine power and emissions U Gunes Brodogradnja 74 (1), 85-98 , 2023 2023 Citations: 20
MOST CITED SCHOLAR PUBLICATIONS
Recent progress of electromagnetic wave absorbers: a systematic review and bibliometric approach A Yuksel, U Gunes, B Colak, T Cetin ChemPhysMater 2 (3), 197-206 , 2023 2023 Citations: 123
Performance analysis of a steam turbine power plant at part load conditions AS Karakurt, U Gunes Journal of Thermal Engineering 3 (2), 1121-1128 , 2017 2017 Citations: 85
The evolution of air and maritime transport A Bejan, U Gunes, B Sahin Applied Physics Reviews 6 (2) , 2019 2019 Citations: 39
Energy theory of periodic economic growth A Bejan, MR Errera, U Gunes International Journal of Energy Research , 2020 2020 Citations: 27
Social organization: the thermodynamic basis A Bejan, U Gunes, MR Errera, B Sahin International Journal of Energy Research 42 (12), 3770-3779 , 2018 2018 Citations: 26
Review: recent developments in 2D MXene-filled bioinspired composites for biomedical applications Y Akinay, M Topuz, U Gunes, ME Gokdemir, T Cetin Journal of Materials Science, 1-30 , 2025 2025 Citations: 22
Estimating bulk carriers’ main engine power and emissions U Gunes Brodogradnja 74 (1), 85-98 , 2023 2023 Citations: 20
Evolutionary design with freedom - Fin shapes and entrance length channels for heat sinks A Bejan, H Almahmoud, U Gunes International Communications in Heat and Mass Transfer 147, 106946 , 2023 2023 Citations: 17
Evolution and irreversibility: Two distinct phenomena and their distinct laws of nature A Bejan, H Almahmoud, U Gunes, HE Fakhari, P Mardanpour Physics of Life Reviews 50, 103-116 , 2024 2024 Citations: 16
Constructal law in energy transport and utilization U Gunes International Communications in Heat and Mass Transfer 156, 107591 , 2024 2024 Citations: 14
Exergetic and economic analysis of subcooling and superheating effect on vapor compression refrigeration system AS Karakurt, U Gunes, Y Ust ASME Power Conference 50213, V001T06A001 , 2016 2016 Citations: 14
Evolutionary design for sustainability during climate change A Bejan, U Gunes International Communications in Heat and Mass Transfer 139, 106386 , 2022 2022 Citations: 13
The fastest animals and vehicles are neither the biggest nor the fastest over lifetime A Bejan, U Gunes, JD Charles, B Sahin Scientific reports 8 (1), 12925 , 2018 2018 Citations: 13
Thermodynamics 2.0: Bridging the natural and social sciences R Poudel, J McGowan, GY Georgiev, E Haven, U Gunes, H Zhang Philosophical Transactions of the Royal Society A: Mathematical, Physical … , 2023 2023 Citations: 12
Performance analysis of multipurpose refrigeratıon system (MRS) on fishing vessel Y Üst, U Karakurt, Asım, Sinan, Gunes Polish Maritime Research 23 (2), 48-56 , 2016 2016 Citations: 12
Evolution of steam turbines: a bibliometric approach AS Karakurt, I Ozsari, V Bashan, U Gunes Journal on Thermal Engineering 8 (8) , 2022 2022 Citations: 11
University rankings: quality, size and permanence A Bejan, U Gunes, B Sahin European Review , 2020 2020 Citations: 11
Predicting tanker main engine power using regression analysis and artificial neural networks U Gunes, V Bashan, I Ozsari, AS Karakurt Sigma Journal of Engineering and Natural Sciences , 2023 2023 Citations: 10
Virus spreading and heat spreading A Bejan, U Gunes International Journal of Thermal Sciences 174 (107433) , 2022 2022 Citations: 8
Educational technology: a bibliometric approach U Gunes, B Tonbuloglu, I Tonbuloglu, IH Yildirim, Kevser, Karatas Marmara University Atatürk Education Faculty Journal of Educational Sciences , 2022 2022 Citations: 6