Overview
Biocompatible hydrogels are three-dimensional polymer networks capable of retaining large amounts of water while maintaining structural integrity. They are synthesized from natural (e.g., collagen, hyaluronic acid) or synthetic (e.g., polyacrylamide, polyethylene glycol) polymers, often crosslinked for stability. Their mechanical and chemical properties can be tailored to mimic native tissues, making them indispensable in biomedical applications. First developed in the 1960s for contact lenses, modern hydrogels now feature advanced functionalities like stimuli-responsiveness (pH/temperature) and bioactive molecule conjugation. Regulatory compliance (e.g., FDA, CE) is critical for medical-grade variants, requiring rigorous testing for cytotoxicity and immunogenicity.
Physical and Chemical Properties
The water content of biocompatible hydrogels typically ranges from 70% to 99%, contributing to their low interfacial tension with biological tissues. Their elastic modulus (0.1–100 kPa) can be adjusted to match soft tissues like skin or cartilage. Crosslinking density dictates swelling ratios—critical for controlled drug release. Key chemical modifications include incorporation of methacrylate groups for UV curing or amine groups for peptide attachment. Degradation rates vary from days (for fast-absorbing wound gels) to months (for implantable scaffolds). Rheological properties are often characterized via oscillatory shear testing to ensure stability under physiological conditions.
Main Applications
In wound care, hydrogels provide moist healing environments while absorbing exudate (e.g., Nu-Gel®). For drug delivery, they enable sustained release of therapeutics like insulin or anticancer agents, with release kinetics controlled by mesh size. Tissue engineering utilizes them as scaffolds for cell proliferation (e.g., CartilageRegen™ for chondrocytes). Emerging uses include 3D bioprinting bioinks and wearable biosensors. Ophthalmology applications include intraocular lenses and corneal repair patches. Their dielectric properties also favor use in bioelectronic interfaces.
Safety and Storage
Medical-grade hydrogels must pass ISO 10993-5 cytotoxicity tests and ISO 10993-10 irritation assays. Residual monomers (e.g., acrylamide) should be <0.1% to avoid inflammation. Terminal sterilization methods include gamma irradiation (25 kGy) or ethylene oxide treatment. Storage requires protection from dehydration (use sealed packaging with PBS solution) and temperature extremes. Freeze-thaw cycles may alter pore structure. Shelf life is typically 1–3 years when stored at 4–25°C with humidity >60%.
B2B Procurement Guide
Procure from suppliers with ISO 13485 certification for medical devices. Request certificates of analysis for endotoxin levels, sterility, and mechanical testing. Bulk orders (100+ kg) may qualify for 15–30% discounts. For R&D, small batches (1–10 kg) of functionalized hydrogels (e.g., RGD peptide-coupled) cost $200–$800/kg. Evaluate supplier capability for custom modifications like porosity tuning (50–200 µm pores). Lead times vary from 2 weeks (standard products) to 8 weeks (custom formulations).
Related Manufacturers
- 主营：乳化剂、消泡剂、润湿剂、水凝胶、分散剂、除臭剂、表面活性剂、水性上光油、杀菌剂、硅烷偶联剂、双丙酮DAAM、二酰阱ADH、防腐剂、流平剂、引发剂、成膜助剂、吊白块、雕白粉、水性增粘乳液、OT75润湿剂
- 主营：黄原胶、羧甲基淀粉、羧甲基纤维素、水凝胶、聚阴离子纤维素、木质纤维、环保粘合剂、聚丙烯纤维、预糊化淀粉、预糊化淀粉系列、改性玉米粉、预胶化淀粉、聚丙烯增强纤维、猫砂专用结块剂
- 主营：反应活、hydrazide、修饰剂、衍生物、生物素、催化剂、糖蛋白、连接子、激动剂、聚合物、活性脂、胆固醇、钆特酸、催化性、dna标记、络合剂、荧光试剂、雨蛙素、乙二胺、ped结构、化合物、链接剂、反应物
- 主营：水性防锈漆、防腐防锈水性漆、铁锈转化剂、水凝胶、彩钢瓦翻新防锈漆、隔音吸音材料、吸音阻燃涂料、外墙保温涂料、桥面防水、路桥防水、背水面防水、背水面补漏、外露型防水、红橡胶防水
- 主营：高吸水保水剂、高分子吸水树脂、阴离子聚丙烯酰胺、水凝胶、聚丙烯酰胺絮凝剂、国标聚丙烯酰胺、高纯度聚丙烯酰胺、PAM聚丙烯酰胺、水处理聚丙烯酰胺、净水聚丙烯酰胺、絮凝剂、沉降药剂、高分子药剂、农用保水剂、园林保水剂、土壤保水剂、农林保水剂、抗旱保水剂、农业土壤保水剂、抗旱专用保水剂、吸水材料、非离子聚丙烯酰胺、阳离子聚丙烯酰胺、絮凝药剂、水处理药剂
- 主营：水凝胶、污泥脱水、聚丙烯酰胺
- 主营：腐植酸钠、腐植酸、铁粉、水凝胶、磁铁粉、钕铁硼磁粉
- 主营：丙二醇、聚乙烯醇、巴斯夫进口泊洛沙姆188、水凝胶、泊洛沙姆407、聚氧乙烯氢化蓖麻油、np700、甘油、乳糖、hs15、二甲基亚砜、聚维酮、凡士林、枸橼酸、磷酸二氢钠、高岭土、海藻糖、滑石粉、黄原胶、聚山梨酯、卡波姆、壳聚糖、明胶、三氯蔗糖、蓖麻油、酒石酸
- 主营：水凝胶、pvc薄膜、TPU薄膜
- 主营：海藻糖、柠檬酸、黄原胶、水凝胶、氯化钙、薄荷脑、泊洛沙姆、聚乙烯醇PVA、聚山梨酯、碳酸氢钠、注射蛋黄卵磷脂、注射大豆油、甘油、倍他环糊精、海藻酸钠、聚丙烯酸钠、酒石酸、丙二醇、聚乙二醇、HS15、聚氧乙烯40氢化蓖麻油、山嵛酸甘油酯、羟丙甲纤维素、羟苯甲酯钠
- 主营：阿洛酮糖、阿斯巴甜、安赛蜜、水凝胶、低聚木糖、甘露寡糖、麦芽糖醇、木糖醇、纽甜、乳糖、三氯蔗糖、水苏糖、甜菊糖、罗汉果甜苷、β-环状糊精、阿拉伯胶、刺槐豆胶、大豆蛋白粉、大豆分离蛋白、瓜尔豆胶、黄原胶、结冷胶、果胶、维生素A、维生素B1、维生素b1
- 主营：硬脂酸镁、药用聚乙二醇、泊洛沙姆188、水凝胶、泊洛沙姆407、聚乙二醇—15羟基硬脂酸酯、巴斯夫进口蓖麻油聚烃氧酯EL35、巴斯夫聚氧乙烯氢化蓖麻油RH40、巴斯夫进口Soluplus、微晶纤维素、聚维酮k30、聚维酮k90、羧甲淀粉钠、低取代羟丙纤维素、羟丙纤维素、羟丙甲纤维素、乳糖、麦芽糊精、交联聚维酮、交联羧甲纤维素钠、海藻糖、甘羟铝、聚丙烯酸钠、卡波姆、亚什兰进口羟乙基纤维素
- 主营：氯化钙、硫酸镁、软水盐、水凝胶、纯碱、氧化镁、元明粉、氯化镁、工业盐、融雪剂、氯化钾、白炭黑、焦亚硫酸钠、无水亚硫酸钠、氢氧化镁、丁二酸、醋酸钾、硫酸铝
- 主营：滑石粉、重钙粉、石英砂、水凝胶、雪花白砂
- 主营：暖宫贴、医用冷敷贴、艾灸液、水凝胶眼贴、隔物灸、三伏贴、泥灸膏、足贴、透皮贴、传统手工黑膏药代加工、穴位贴、凝胶、磁疗贴、理疗贴、小儿贴、热奄包、热疗贴、痛经贴、外科口罩、重组胶原蛋白敷料贴、血压计、远红外磁疗贴、注射器、输液器、敷料贴
- 主营：强生超声刀头、巴德疝修补片、强生倒刺缝合线、水凝胶敷料、疝修补补片、强生止血夹、强生止血纱、磷酸锆钠银藻酸盐敷料、含银敷料、美必康、透析导管、长期透析导管、进口透析导管、巴德透析导管、组织胶水、百克钳、美皮康、保赫曼、人造血管、体外循环插管、羧甲基纤维素钠银敷料、高压球囊、血栓导管、血液透析用
- 主营：膏药贴牌、三伏贴、艾草贴、水凝胶、眼罩oem、肚脐贴、热奄包、热敷贴、眼贴oem、痛喷剂、保健贴、筋骨粉、止痛粉、中药贴、自热贴、姜泥灸膏、远红外理疗贴、鸸鹋油、痔疮膏、暖宫贴、小儿贴、乳膏代加工、冷敷凝胶、穴位贴、冷敷贴、磁疗贴