Polyethylene glycol peg

PSf (Ultrason E2020P) and PES (Ultrason S6010) were supplied by BASF (Ludwigshafen, Germany). AMTHBA was made by our laboratory, and the details of generating it were reported in our previous work [28 (link)]. VTMES (Figure 1) was acquired from Dow chemical Co. Ltd. (Shanghai, China). N,N-dimethyl acetamide (DMAc, 99.0%) and polyethylene glycol (PEG, M_w = 380–430 Da) were purchased from Sinopharm Chemical Reagent Co. Ltd. (Shanghai, China). 2,2′-Azodiisobu-tyronitrile (AIBN, AR) was obtained from Tianjin Damao Chemical Reagents (Tianjin, China). Bovine serum albumin (BSA, M_w = 67,000 Da) and HA were acquired from Sigma-Aldrich (Burlington, MA, USA). All the chemical reagents were used as received without further purification.

PU sponges (thickness = 0.5 cm) were purchased from Yongxin Sponge Factory (Zhejiang, China). Nanofibrillated cellulose (NFC) was acquired by Guilin Qihong Technology (1 wt%). Ti₃AlC₂ MAX phase (200 mesh) and Graphene (KNG-C162, 98.8%) were purchased from 11 Technology Co., Ltd. (Jilin, China) and Knano Graphene Technology Co., Ltd. (Xiamen, China), respectively. Lithium fluoride (CP), hydrochloric acid (AR), and polyethylene glycol (PEG, Mn = 6000) were purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Dopamine (DA) and 2-Amino-2-(hydroxymethyl)-1,3-propanediol (tris) hydrochloride were purchased from Sigma-Aldrich. All the chemicals were used without any further purification.

Polyethylene glycol (PEG) with average molecular weight (MW) of 600 Da was from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Ammonium sulfate ((NH₄)₂SO₄), disodium hydrogen phosphate (Na₂HPO₄), monometallic sodium orthophosphate (NaH₂PO₄) and sodium chloride (NaCl) were obtained from Beijing Yili Fine Chemicals Co., Ltd. (Beijing, China). 2% rabbit red-blood-cell suspension was from Beijing Baiaolaibo Technology Co., Ltd. (Beijing, China). SDS–PAGE electrophoresis kit and Folin’s phenol reagent were from Beijing Solarbio Technology Co., Ltd. (Beijing, China). Ultrapure water was obtained from Northeast Agricultural University. All of the reagents were used without further purification.

Commercial polylactic acid (PLA) polymer, Ingeo^TM biopolymer 4032D, with a melt flow rate (MFR) = 7 g/10 min (210 °C, 2.16 kg) by NatureWorks (Minneapolis, MN, USA), was purchased from a distributor, Suzhou Ziyunxuan Plastic Co., Ltd. (Suzhou, China). Polyethylene glycol (PEG, molecular weight = 2000 g/mol), graphene oxide (2 mg/mL, dispersed in N-methyl pyrrolidone), rosmarinic acid (RosA), dichloromethane (DCM), N,N-dimethylformamide (DMF), sodium chloride, and sodium pentobarbital were all purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China).

These experimental materials were purchased and used in the preparation of hydrogels. Polyvinyl alcohol (PVA) was purchased from Tianjin Fuyu Chemical Co., Ltd. (Tianjin, China). Chitosan (CS) was purchased from Shanghai Maclean Biochemical Technology Co., Ltd. (Shanghai, China). Polyethylene glycol (PEG) and Silver nitrate (AgNO₃) were purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Hydrochloric acid (HCl) was purchased from Chongqing Chuandong Chemical Co., Ltd. (Chongqing, China). Deionized water was homemade. Mouse embryonic fibroblast cells (NIH3T3) were purchased from Shanghai Zhongqiao Xinzhou Biotechnology Co., Ltd. (Shanghai, China). Fetal bovine serum (FBS) was purchased from Bovogen Biologicals Pty Ltd. (Melbourne, Australia). Trypsin-EDTA and medium were purchased from Gibco Corporation (Grand Island, NY, USA). Phosphate Buffered Saline (PBS) was purchased from Boster Biological Technology co., Ltd. (Wuhan, China). Additionally, cell Counting Kit-8 (CCK-8) was purchased from MedChem Express LLC (NJ, USA).

The chemically pure monomer styrene (ST) was purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China), and the crosslinking agent divinyl benzene (DVB) of commercial grade was obtained from Beijing Chemical Reagents Co., Ltd. (Beijing, China). The Benzoyl peroxide (BPO) with 30% water was used as an initiator and purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Hexadecane (HD) of chromatographic grade was purchased from Haltermann (Houston, TX, USA) and used as a hydrophobic additive. Surfactant sorbitan monooleate (Span 80) of reagent grade was obtained from Farco Chemical supplies (Beijing, China).
Polyvinyl alcohol (PVA), PVA-217, (degree of polymerization 1700, degree of alcoholysis 88.5%), was provided by Kuraray Co., Ltd. (Tokyo, Japan). Polyethylene glycol (PEG) with molecular weights 2000, 6000, 20,000 were purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Dextran T50 (molecular weight about 50,000) were purchased from Seebio Biotech, Inc. (Shanghai, China). NaCl, I₂, BaCl, and ammonium sulfate [(NH₄)₂SO₄] were purchased from Xilong Chemical Co., Ltd. (Guangdong, China). Ethanol and acetone were used to precipitate and wash the particles, which purchased from Beijing Chemical Works (Beijing, China).