Bio-Inspired Materials: Nature-Inspired Design Strategies,Eco-Friendly Synthesis, and Applications in Biomedical and Engineering Domains

Abstract

Living organisms solve engineering problems — load-bearing, self-repair, water shedding, adhesion, drag reduction — using a narrow set of raw materials organized with extraordinary precision across scales. This paper synthesizes fourteen peer-reviewed sources (2016–2026) spanning structural biomimetics, green materials chemistry, and biomedical engineering to examine how five natural design strategies — hierarchical composite architecture, functional surface texturing, fibrous molecular self-assembly, reversible/self-healing chemistry, and adhesive micro-structuring — are being translated into engineered materials. Rather than treating these as isolated case studies, the review compares how different exemplars trade off performance against manufacturability, and identifies where the literature agrees, where it diverges, and where translational evidence remains thin. Eco-friendly synthesis routes built on renewable biopolymers are examined alongside their claimed sustainability benefits, and representative biomedical (orthopedic, drug-delivery) and engineering (structural composite, self-cleaning, energy-harvesting) applications are mapped against the design principle each depends on. The review closes by evaluating a recurring but unevenly supported claim across the literature — that generative AI and additive manufacturing will close the gap between laboratory demonstration and industrial-scale production — and argues that this claim currently outpaces the available evidence for most exemplars other than energy-harvesting nanostructures.