The phrase "and more efficient method" is correct and usable in written English.
You can use it when comparing methods or approaches, indicating that one is more efficient than another.
Example: "After reviewing the current processes, we discovered a more efficient method for completing the task."
Alternatives: "a more effective approach" or "a better technique".
Berkeley scientists have developed a quicker and more efficient method to alter the genes of mice with CRISPR-Cas9.
This yields a simpler and more efficient method, characterized by a compact stencil size.
In this paper, we report the development of a simpler and more efficient method for the recovery of succinic acid.
UC Berkeley scientists have developed a quicker and more efficient method to alter the genes of mice with CRISPR-Cas9, simplifying a procedure growing in popularity because of the ease of using the new gene-editing tool.
The aim of the present study was to design a simple and more efficient method for the purification and concentration of luciferase using aqueous two-phase extraction (ATPE).
For the PECT system which uses detection coils, a no-reference-needed and more efficient method, for quantifying the wall thickness of the ferromagnetic specimen, should be found.
This conference focused on exploring potential investigational pathways that might be developed ultimately into simpler and more efficient methods to assess sleepiness.
This rather labor-intensive technique has since been shelved, replaced by less time consuming and more efficient methods, electroporation and biolistics.
Biopreservation – fermentation of milk with lactic acid bacteria (LAB) – is one of the oldest and more efficient methods to preserve milk valuable nutrients.
One manager, who was involved in a full-time project to develop new and more efficient methods of producing a certain ingredient, maintained momentum by holding daily meetings with the core team, getting together often with operations managers and members of a task force he had formed, putting out weekly status reports, and making frequent presentations to top management.
