“…It enables printing products to achieve self-assembly, versatility, and self-healing, − illustrating the remarkable application potential for biomimetic design, , biomedical scaffold, − smart device, , origami structure, − self-lubricating structure, , and adaptive structure. ,, The key to 4D printing is using smart biomimetic materials as printing consumables whose shapes or properties can be changed when exposed to external environmental stimuli such as stress, temperature, moisture, pH, electricity, and so forth. ,,− Among various smart materials, photocurable shape memory polymers (PSMPs) can provide printing products with high printing accuracy, smooth surface, excellent resolution, and elegant appearance. These are the most commonly used 4D printing consumables for light-curing technologies. − In the last 5 years, different types of photopolymerizable resins for 4D printing have been reported, mostly employing petroleum-based acrylates, ,, acrylamides, or ethylene glycols − as prepolymers. However, further development of 4D printing photocurable resins is facing several difficulties and challenges.…”