Anhydrous calcium chloride

Sodium alginate (SA) of food grade was extracted and purified by Mingyue Seaweed Group Co. Ltd. (Shandong, China). Carnauba wax (CW) of food grade was purchased from Shanghai Yuanye Biotechnology Co. Ltd. (Shanghai, China). Calcium ascorbic acid (Vc-Ca) of food grade was purchased from Kangda Biology and Technology Co. Ltd. (Guangdong, China). Propanol of food grade was bought by Xilong Chemical Co. Ltd. (Shaanxi, China). Disodium hydrogen phosphate, sodium dihydrogen phosphate, and anhydrous calcium chloride (analytical pure) were obtained from Xilong Science Co. Ltd. (Shaanxi, China). Fresh apples were purchased in the market (Yang Ling Haoyouduo supermarket, Shaanxi, China) with neat shape, uniform size, maturity, and no obvious surface pests or appearance damage.

Chitosan was procured from China National Pharmaceutical Group Chemical Reagent Co., Ltd (China). Alginate was obtained from Sigma-Aldrich (USA). Gelatin was procured from China Macklin Company (China). Anhydrous calcium chloride was sourced from Xilong Scientific Co., Ltd (China). PRP was acquired from Zhuhai Baishitong Biotechnology Co., Ltd (China).

Zinc acetate, calcium chloride anhydrous (CaCl₂), lithium hydroxide (LiOH) and N,N-dimethyl formamide (DMF) were purchased from Xilong Chemical Industry (Shantou, China). 3-aminopropyltriethoxysilane (APTES), sodium phosphate dibasic dodecahydrate (Na₂HPO₄∙12H₂O) and hexane were purchased from Aladdin (Shanghai, China). Cetyltrimethylammonium bromide (CTAB) was purchased from Thermo Fisher Scientific (Shanghai, China). Tetraethylorthosilicate (TEOS), ammonia (NH₃∙H₂O), absolute ethanol, succinic anhydride and 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC) were purchased from Sinopharm (Beijing, China).
Doxorubicin hydrochloride (DOX) was purchased from Adamas-beta (Shanghai, China). Dulbecco’s modified eagle medium (DMEM) was purchased from Hyclone (Logan, UT, USA). Fetal bovine serum (FBS) was purchased from Zhejiang Tianhang biological technology (Hu Zhou, China). 2-(4-amidinophenyl)-6-indolecarbamidine dihydrochloride (DAPI) and penicillin-streptomycin solution were purchased from Beyotime (Shanghai, China). A cell counting kit-8 (CCK-8) was purchased from DOJINDO Laboratories (Kumamoto, Japan). The prolong antifade kit was purchased from Life Technologies (Eugene, OR, USA) and 4% paraformaldehyde was purchased from Vicmed (Xuzhou, China).