The phrase "a complex formed" is correct and usable in written English.
It can be used in contexts discussing chemistry, biology, or any situation where a complex structure or arrangement has been created.
Example: "In the experiment, a complex formed between the two chemicals, resulting in a noticeable color change."
Alternatives: "a compound created" or "a structure developed".
Structures and stability of salt-bridges in aqueous solutions were investigated using a complex formed from the guanidinium (Gdm+) and formate (FmO−) ions as a model system.
The upper surface of the outer membrane consists of LPS molecules, which are synthesized in the inner membrane and shuttled to the outer membrane by the LPS transport apparatus — a complex formed from seven types of protein subunit (LptA G).
A three-dimensional model structure of a complex formed by a G-protein-coupled receptor (GPCR) and an agonist ligand is probed and refined using molecular-dynamics simulations and free energy calculations in a realistic environment.
In animals, a complex formed by Drosha and DGCR8/Pasha recognizes the transition between the single-stranded RNA sequences and the stem loop to produce the first cleavage step in miRNA biogenesis [3].
Mechanistic investigation based on chemical probes and changes in the absorption spectrum of CV in the presence of SBO seems to indicate that a complex formed between sensitizer and substrate plays a major role in the process.
Here, we have used fusion with leucine zipper (LZ) domains to stabilize a complex formed between the class II major histocompatibility complex (MHC-II) protein, HLA-DR1 (which binds peptides for presentation to CD4+ T cells) and HLA-DM (which catalyzes peptide exchange of MHC-II molecules).
For the first time, a complex formed by polyaniline (in its organic metal form) and silver has been deposited on copper in nanoparticulate form.
EDTA preferentially forms octahedral complexes – thus absorbing other cations such as Al3+ which might interfere – for example, in the solvent extraction of a complex formed between Be2+ and acetylacetone.
A complex formed by the PA63 heptamer and either EF or LF or both is internalized into the cell by receptor-mediated, clathrin-dependent, endocytosis [30].
