This paper describes a novel nanoformulation for dual MRI/US in vivo monitoring of drug delivery/release. The nanosystem was made of a perfluoropentane core coated with phospholipids stabilized by glycol chitosan crosslinked with triphosphate ions, and it was co-loaded with the prodrug prednisolone phosphate (PLP) and the structurally similar MRI agent Gd-DTPAMA-CHOL. Importantly, the in vitro release of PLP and Gd-DTPAMA-CHOL from the nanocarrier showed similar profiles, validating the potential impact of the MRI agent as an imaging reporter for the drug release. On the other hand, the nanobubbles were also detectable by US imaging both in vitro and in vivo. Therefore, the temporal evolution of both MRI and US contrast after the administration of the proposed nanosystem could report on the delivery and the release kinetics of the transported drug in a given lesion.
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http://dx.doi.org/10.3390/nano13152227 | DOI Listing |
Dalton Trans
November 2024
School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China.
It is crucial to precisely strike the bacterially infected area and avoid damaging healthy tissue in bacterial infection treatment. Herein, we report an acidity-triggered aggregation antibacterial nanoplatform based on biodegradable mesoporous organic silica nanoparticles (MON NPs). The surface of MON NPs modified with polydopamine (PDA) encapsulated ciprofloxacin (CIP) and methylene blue (MB) and was then further grafted with glycol chitosan to obtain MB/CIP@MON-PDA-GCS NPs (MCMPG NPs).
View Article and Find Full Text PDFInt J Biol Macromol
November 2024
School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea; Research Institute of Cell Culture, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea. Electronic address:
The application of environmentally friendly and sustainable catalysts requires efficient and safe preparation methods using cheap and renewable materials. Although many metal nanoparticles (NPs) have low colloidal stability, they are still very effective as catalysts. Using a straightforward method, we developed a bacterial cellulose-glycol chitosan-silver (BC-GCS-Ag) nanocomposite, by introducing both AgNPs and self-crosslinked GCS within the BC network.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, 250 Wu-Hsing Street, Taipei 11031, Taiwan; Taipei Medical University Research Center of Urology and Kidney, Taipei Medical University, 250 Wu-Hsing Street, Taipei 11031, Taiwan; Department of Urology, Shuang Ho Hospital, Taipei Medical University, 291 Zhongzheng Road, Zhonghe District, New Taipei City 23561, Taiwan. Electronic address:
The management of diabetic kidney disease (DKD) faces challenges stemming from intricate pathologies and suboptimal biodistributions during drug delivery. Although clinically available anti-inflammatory agents hold considerable promise for treating DKD, their therapeutic effectiveness is limited when utilized in isolation. To address this limitation, we introduced a novel self-oriented nanocarrier termed F-GCS@Hb-DIF, designed to synergistically integrate the therapeutic diferuloylmethane (DIF), the polysaccharide fucoidan/glycol chitosan (F-GCS), and phototherapeutic hemoglobin (Hb).
View Article and Find Full Text PDFCurr Pharm Biotechnol
October 2024
Department of Pharmaceutical Technology, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid 22110, Jordan.
Introduction: Docetaxel (DTX) is a chemotherapeutic drug that has high toxicity and low bioavailability. To solve these problems, PLGA nanoparticles (NPs) were loaded with DTX and coated with mucoadhesive polymers; chitosan (CS), carboxymethyl chitosan (CMCS), or glycol chitosan(GCS). The NPs were characterized for size, charge, and polydispersity.
View Article and Find Full Text PDFAdv Healthc Mater
September 2024
Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, New Taipei City, 235603, Taiwan.
Combination therapy based on precise phototherapies combined with immune modulation provides successful antitumor effects. In this study, a combination therapy is designed based on phototactic, photosynthetic, and phototherapeutic Chlamydomonas Reinhardtii (CHL)-glycol chitosan (GCS)-polypyrrole (PPy) nanoparticle (NP)-enhanced immunity combined with the tumor microenvironment turnover of cytotoxic T cells and M1/M2 macrophages, which is based on photothermal GCS-PPy NPs decorated onto the phototactic and photosynthetic CHL. Phototherapy based on CHL-GCS-PPy NPs alleviates hypoxia and modulates the tumor immune microenvironment, which induces tumor cell death.
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