The part of a sentence 'especially in the fields of' is correct and can be used in written English.
You can use it to refer to particular areas or topics. For example, "He is an expert in modern technology, especially in the fields of artificial intelligence and robotics."
The region is an important hub for research, especially in the fields of medicine, electronics, and nuclear physics.
Alice provided well informed and highly valued professional assistance to our funding programs, especially in the fields of housing and community development in New York City.
Thus, especially in the fields of immunology and drug development, it is essential to be able to reliably detect endotoxin contamination.
In the era of Churchill, Eden and Harold Macmillan, especially in the fields of literary and visual humour, one finds traces of the Searle footprint.
Despite this, the saccadic eye movement system is often promoted as a model for all decisions, especially in the fields of electrophysiology and modelling.
This work presents the research trends in inkjet printing as a bioapplicable technology, especially in the fields of tissue engineering and drug delivery systems.
At present advanced robotics concepts require new and more suitable components to be exploited, especially in the fields of the biomimetic and soft robotics.
Pedestrian detection is a popular research topic due to its paramount importance for a number of applications, especially in the fields of automotive, surveillance and robotics.
The role of deployment policies that aim to foster technological change has grown considerably, especially in the fields of energy and climate.
These investigations are believed that there is a certain extent promotion to applications of superhydrophobic surface, especially in the fields of anti-icing and corrosion prevention.
