We report a particulate cell delivery platform, toroidal spiral particles (TSPs), for continuous cell activation, expansion, and local sustained release. Biocompatible TSPs, generated by a self-assembly process of polymeric droplet sedimentation in an aqueous solution and subsequent polymer solidification, possess many engineering design flexibilities to manipulate the microenvironment of the cells to control cell proliferation, migration, and release kinetics. These millimeter-size particles with desired mechanical and physicochemical properties may be potentially used for adoptive cellular therapy (ACT) delivery by a minimally invasive procedure to the tumor mass.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acsabm.0c00992 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A tough soft-hard interface in the human knee joint driven by multiscale toughening mechanisms.
Proc Natl Acad Sci U S A
January 2025
Department of Sports Medicine of the Second Affiliated Hospital, and Liangzhu Laboratory, Zhejiang University School of Medicine, Hangzhou 311113, China.
Joining heterogeneous materials in engineered structures remains a significant challenge due to stress concentration at interfaces, which often leads to unexpected failures. Investigating the complex, multiscale-graded structures found in animal tissue provides valuable insights that can help address this challenge. The human meniscus root-bone interface is an exemplary model, renowned for its exceptional fatigue resistance, toughness, and interfacial adhesion properties throughout its lifespan.
View Article and Find Full Text PDF-Phenylphenothiazine-based Hyper-cross-linked Polymers for Recyclable, Heterogeneous Photocatalysis of Organic Transformations: A Strategy to Access 6-Difluoromethyl-phenanthridines.
Org Lett
January 2025
Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
Herein, a -phenylphenothiazine-based hyper-cross-linked polymer (PTH-HCP) was finely designed and constructed, which serves as a metal-free heterogeneous photocatalyst for organic transformations. Characterization experiments have shown that this polymer demonstrates outstanding stability, extensive surface area, and exceptional photoelectric response properties. Moreover, PTH-HCP showed good catalytic efficiency and recyclability in the photochemically driven difluoromethylation/cyclization reactions.
View Article and Find Full Text PDFDesign of an efficient magnetic brush solid acid and its catalytic use in organic reactions.
Sci Rep
January 2025
Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, 616, Birkat Al Mauz, Nizwa, Sultanate of Oman.
In this research, with the Green Chemistry approach, to load more sulfonic acid active sites on catalyst surfaces, a nanocomposite material based on core-shell magnetite coated with vinyl silane and a sulfonated polymeric brush-like structure is designed and synthesized as a new class of efficient solid acid catalysts, referred to as FeO@VS-APS brush solid acid. The synthesized catalyst was comprehensively characterized by a range of instrumental techniques, including XRD, SEM, TEM, FT-IR, EDX, TGA, and VSM. The activity of the catalyst was evaluated in Biginelli, Strecker, and esterification reactions.
View Article and Find Full Text PDFCatalytic efficiency of GO-PANI nanocomposite in the synthesis of N-Aryl-1,4-Dihydropyridine and hydroquinoline derivatives.
Sci Rep
January 2025
Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, University of Science and Technology, 16846-13114, Tehran, Iran.
In this research, graphene oxide-polyaniline (GO-PANI) nanocomposite was successfully synthesized and its catalytic performance was evaluated for the synthesis of N-aryl-1,4-dihydropyridine (1,4-DHP) and hydroquinoline derivatives. The GO nanosheets were prepared using the Hummers' method, and in-situ polymerization of aniline was conducted with ammonium persulfate (APS) serving as the polymerization initiator. The synthesized nanocomposite demonstrated notable efficiency, achieving yields of 80-94% for 1,4-DHP derivatives and 84-96% for hydroquinoline derivatives.
View Article and Find Full Text PDFRegulating the macroscopic and microscopic self-assembly behavior of hydroxybutyl chitosan based on alkyl distribution.
Carbohydr Polym
March 2025
Laoshan Laboratory, Qingdao 266000, PR China.
Hydroxybutyl chitosan (HBC), a derivative of chitosan, exhibits biocompatibility and temperature-sensitive properties, rendering it utilized in tissue engineering, and biomedical science. Currently, HBC is mainly prepared based on heterogeneous and homogeneous reactions. However, the impact of reactions on structure of derivatives and their mechanisms for self-assembly remains to be elucidated.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!