'contributed to the efficiency' is correct and can be used in written English.
For example, you could say, "The introduction of new software tools significantly contributed to the efficiency of the manufacturing process."
Mr. Barnier insisted on Wednesday that short-selling had economic benefits and contributed to the efficiency of markets.
Thus, the conductance difference may mainly be contributed to the efficiency of electron transport along the molecule for Cu, Au, and Ag [28].
Automation and miniaturization of the protein crystallization processes have greatly contributed to the efficiency and effectiveness of the experimental technique.
35 It should be noted that the use of a pen device is likely to have contributed to the efficiency of gonadotropin administration.
Analysis of the excess readthrough (blue) mutants verified that the screen had identified Pol II residues that contributed to the efficiency of cleavage at the chromosomal ADH2 poly(A) site.
It has been shown for other proteins with partial nucleolar localization like Parp2 or ING1b that in addition to the RRXR motif also their NLSs contributed to the efficiency of nucleolar retention independent from their function for nuclear localization (Scott et al, 2001; Meder et al, 2005).
This observation is reminiscent to the contribution of NLSs of Parp2 or ING1b that contribute to the efficiency of nucleolar retention (Scott et al, 2001; Meder et al, 2005).
The long persistence of siRNAs contribute to the efficiency and duration of RNAi in cell culture and in vivo, leading to sustained gene silencing61,62.
Sun, Y. Y. et al. Nonmuscle myosin heavy chain IIA is a critical factor contributing to the efficiency of early infection of severe fever with thrombocytopenia syndrome virus.
