25.06.2020•

黑色素瘤:贴片可能是治疗选项

Purdue大学的科学家开发了一种皮肤补丁,可以以有效和无痛的方式将化疗转化为黑色素瘤肿瘤。

传统的皮肤癌therapies, including化疗andradiotherapy, suffer from the toxicity and side effects of repeated treatments due to the aggressive and recurrent nature of melanoma cells. Less invasive topical chemotherapies have emerged as alternatives, but their widespread uses have been hindered by both the painful size of the微针以及治疗中使用的聚合物的快速溶解行为。

Now, Purdue University innovators have created a novel wearable patch to help address the issues and provide an improved treatment experience for people with黑色瘤

“我们开发了一部小说可穿戴的补丁with fully miniaturized needles, enabling unobtrusivedrug delivery通过皮肤治疗皮肤癌,“普渡助理生物医学工程与机械工程教授智盛李说。“唯一地,该贴片以可编程方式通过体液完全可溶解,使得贴剂衬底在引入皮肤中后1分钟内溶解,然后在几个月内逐渐溶解在组织内的硅针。”

Photo
Image shows a bioresorbable wearable skin patch comprised with fully miniaturized silicon needles for the management of skin cancers.
资料来源:提供的图像

李说,这种逐渐缓慢的硅纳尼溶解允许长期持久和可持续的癌症治疗方法。“我们的技术的独特性源于我们使用极小但持久的硅纳金属,具有尖锐的角度尖端,这很容易以无痛和微创的方式渗透到皮肤中,”李说。

Purdue Innovators开发了一种新颖的可吸收硅纳金属设计,该硅纳金属纳合物基于薄,柔性和水溶性的医疗薄膜。水溶性薄膜用作临时保持器,其可以在插入纳尼的插入期间与皮肤的软,曲线表面恰当地界面,然后在一分钟内快速,完全溶解。

纳米形状的表面配置有纳米级孔,并提供与使用常规微孔的药物负载能力相当。李说,纳尼德可以将化学治疗药物递送以可持续的方式靶向黑色素瘤位点。硅纳金属在组织液中是生物相容性的并且可溶解,使得它们可以以无害的方式完全在身体中被过滤。

李说,他在看到他的女儿在接受疫苗接种时表达了对针头的恐惧思想后,他开始致力于这种技术。

You can read the paperhere

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