The phrase "are highly essential" is correct and usable in written English.
It can be used to emphasize the importance or necessity of something in a statement.
Example: "The resources we provide are highly essential for the success of the project."
Alternatives: "are critically important" or "are absolutely necessary."
New methods for functional assays of chemical receptors are highly essential for the research of chemical signal transduction mechanisms and for the development of chemical biosensors.
Next, we introduce the hardware of DCN's, including switches, servers, storage devices, racks, and cables used in industries, which are highly essential for designing DCN architectures.
Therefore, measurement and analysis of fragmentation of blasted rock masses are highly essential [2].
Custom-made grafts are highly essential especially in skin reconstruction with complicated topography of organs like ears and breast (Li et al. 2016).
Points 1-3 in referee #2's report are highly essential and the authors are thus asked to address them each in the revised Discussion.
Nutritional factors are highly essential in the prevention of cardiovascular disease and comprise both, the avoidance of unfavourable food supplements such as high concentrations of low density lipoproteins and salt as well as the accentuation of beneficial effects of nutritional ingredients such as folic acid or resveratrol [ 139- 143].
For the reliability of power supply, a robust maintenance tool for power-transformer is highly essential.
Arsenic in drinking water has been recognized as a serious community health problem because of its toxic nature and therefore, its removal is highly essential.
Therefore, the knowledge about all the aspects of EPS production (listed above) is highly essential to formulate a logical and scientific basis for the research and industrial activities.
The efficacy of nanoparticle drugs necessitates the high bioactivity of constituents, but their distribution in organisms is mostly governed by the physical properties of nanoparticles, and therefore, generation of stable particles with strictly defined characteristics is highly essential.
