Construction of Intelligent Responsive Drug Delivery System and Multi‐Mode Imaging Based on Gold Nanodots. Issue 10 (15th April 2022)

• Record Type: Journal Article
• Authors: Wang, Ze; Zhao, Yueqi; Yang, Zhe; Li, Xingchen; Xing, Huiyuan; Qu, Wenrui; Zvyagin, Andrei V.; Yang, Bai; Lin, Quan; Li, Yang
• Is Part Of: Macromolecular rapid communications. Volume 43:Issue 10(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-04-15
• Subjects: intelligent response -- multi‐mode imaging -- tumor microenvironments; Macromolecules -- Periodicals; Polymers -- Periodicals; Chemistry -- Periodicals; 547.705
• DOI: 10.1002/marc.202200034
• Languages: English
• ISSNs: 1022-1336

Abstract

Abstract: Cancer remains a formidable global problem with a high mortality rate. There are many effective anti‐cancer drugs in clinical use, among which paclitaxel (PTX) has good effects on non‐small cell lung cancer, ovarian cancer, and breast cancer. However, when applied to the clinic, PTX still has many limitations, such as poor water solubility, drug resistance, and side effects on healthy tissues. A gold nanodots‐paclitaxel‐polylysine (AuNDs‐PTX‐PLL) core‐shell nano‐system of integrated diagnosis and treatment is constructed to achieve intelligent responsive drug delivery. On the one hand, the problem of poor water‐solubility and drug resistance of PTX are solved. On the other hand, the nano‐system has an excellent intelligent response effect. Drugs can only be released in the weakly acidic environment of the tumor, which reduces the damage and side effects to normal tissues. Moreover, the nano‐system can be used for real‐time tracking and auxiliary diagnosis for the tumor through the multi‐mode imaging mode, such as fluorescence, photoacoustic, and computed tomography to achieve accurate visualization. The photothermal effect of AuNDs is beneficial to promote the release of drugs. The nano‐system integrates multi‐mode imaging, chemotherapy, intelligent drug release in tumor weakly acidic environment, and has excellent practical application prospects in tumor diagnosis and treatment. Abstract : A nano‐system is constructed which integrates multi‐mode imaging, chemotherapy, and intelligent drug release in a tumor weakly acidic environment. The photothermal effect of Au nanodots is beneficial to promote the release of drugs. It is an excellent nanoplatform for image‐guided diagnosis and treatment of tumors.