"started to be explored" is a grammatically correct and usable phrase in written English.
It is often used to describe the beginning of a process or journey of learning or understanding something. Example: In the late 19th century, the concept of relativity started to be explored by physicists, leading to groundbreaking discoveries in the early 20th century.
Self-assembling plant virus nanoparticles (pVNPs) have started to be explored as nanometre-sized objects for biomedical applications, such as vaccine or drug delivery and imaging.
In a time in which mucosal vaccines development has been delayed by the lack of safe and effective mucosal adjuvants, the combination of adjuvants has started to be explored as a strategy to obtain potent vaccine formulations.
The flexibility in molecular design offered by structural proteins, combined with the flexibility in mixing, deposition, and mechanical processing inherent to bioprinting technologies, enables the fabrication of highly functional scaffolds and tissue mimics with a degree of complexity and organization which has only just started to be explored.
It will be interesting to see how this progresses, but the possibilities here have only just started to be explored.
Hugh Johnson's Pocket Wine Book, an authoritative guide, says in its 1991 edition that Chile's wine potential "has only really started to be explored in the past five years.
The molecular pathways controlling these processes have only just started to be explored.
Moreover, e-business is an opportunity of vast scope, just starting to be explored, as is the mobile-data industry.
*Textual* word embeddings have been common in natural language processing for a number of years now; the acoustic analogue is only recently starting to be explored.
Cancers that do not use PD-L1 or PD-L2 are thought to use other similar systems, just starting to be explored.
Industrial applications of cluster ion beams did not start to be explored until commercial equipment was first introduced to the ion beam community in around 2000.
Although metabolic aspects of development are just starting to be explored, there is no doubt that ongoing research in this field will shape the future landscape of Developmental Biology.
