Peer review is an essential part in the publication process, ensuring that Gels maintains high quality standards for its published papers. In 2017, a total of 49 papers were published in the journal. Thanks to the cooperation of our reviewers, the median time to first decision was 21 days and the median time to publication was 47 days. The editors would like to express their sincere gratitude to the following reviewers for their time and dedication in 2017:
| Abdellatif, Abdelmohsan | Leporatti, Stefano |
| Argia, Katsuhiko | Liefeith, Klaus |
| Bandyopadhyay, Sulalit | Major, Ian |
| Bednarz, Szczepan | Mathew, Aji P. |
| Ben Messaoud, Ghazi | Medronho, Bruno |
| Bernards, Matthew | Merino, Sonia |
| Betancourt, Tania | Miravet, Juan F. |
| Bokias, Georgios | Montenegro, Lucia |
| Bong, Ki Wan | Moth-Poulsen, Kasper |
| Bouropoulos, Nikolaos | Moura, Maria J. |
| Cerroni, Barbara | Muench, Falk |
| Chandrasekaran, Swetha | Nair, Devatha |
| Chiessi, Ester | Ngai, To |
| Chronopoulou, Laura | Nonappa, Nonappa |
| Cui, Haitao | Oddo, Letizia |
| Custodio, Catarina | Ohsedo, Yutaka |
| Czajkowska, Aneta | Okesola, Babatunde |
| Delbecq, Frederic | Paduano, Luigi |
| Díaz Díaz, David | Palocci, Cleofe |
| Domenici, Fabio | Papadakis, Christine |
| Douglas, Jack F. | Paradossi, Gaio |
| Dräger, Gerald | Patterson, Jennifer |
| Dupin, Damien | Pereira, Luís |
| Eceiza, Arantxa | Pouponneau, Pierre |
| Erk, Kendra | Puiggali, Jordi |
| Esquivias Fedriani, Luis | Ratke, Lorenz |
| Franke, Daniela | Raucci, Maria Grazia |
| Fu, Qiuyun | Ribeiro, Clarisse |
| Garcia-Gonzalez, Carlos A. | Rovigatti, Lorenzo |
| Gentile, Piergiorgio | Rubio-Hernández, Francisco J. |
| Ghahremaninezhad, Ali | Russo, Laura |
| Ghugare, Shivkumar V. | Salipante, Paul |
| Gohy, Jean-Francois | Savo, Domenico Fabio |
| Gormley, Adam | Schiraldi, David A. |
| Gradzielki, Michael | Serban, Monica |
| Guerra, Gaetano | Sher, Praveen |
| Hellweg, Thomas | Slosarczyk, Agnieszka |
| Heras, Angeles | Smirnova, Irina |
| Huang, Weimin | Song, Changsik |
| Iatridi, Zacharoula | Steed, Jonathan |
| Iatrou, Hermis | Stokke, Bjørn T. |
| Ijima, Hiroyuki | Sun, Yuan |
| Ikeda, Masato | Tananaiko, Oksana |
| Ino, Kosuke | Taylor, Joan |
| Jain, Gaurav | Teramoto, Yoshikuni |
| John, Vijay T. | Thordarson, Pall |
| Kadlubowski, Slawomir | Toca-Herrera, José Luis |
| Kali, Gergely | Tomasini, Claudia |
| Kalyon, Dilhan M. | Torres, María D. |
| Kato, Tadashi | Tunesi, Marta |
| Kim, Jongseong | Urayama, Kenji |
| Krebs, Melissa | Volker, Körstgens |
| Kuang, Huihui | Wang, Hui-Liang |
| Kuckling, Dirk | Weiss, Richard G. |
| Kundu, Santanu | Winkler, Roland G. |
| Kyle, Stuart | Yamanaka, Masamichi |
| Lapitsky, Yakov | Yang, Yonggang |
| Larraneta Landa, Eneko | Yoon, Jinhwan |
| Lázár, István | Yu, Jiashing |
| Lee, Seungae | Yu, Xinjun |
| Lenfant, Gilles | Zaccone, Alessio |
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