New amphiphilic dendritic peptides on dendritic polyaspartic acid were designed and synthesized. The organogel and liquid crystal properties of these amphiphilic dendritic peptides were fully studied by field-emission SEM, temperature dependent FT-IR, differential scanning calorimetry, polarization optical microscopy and X-ray diffraction experiments. Amphiphilic dendritic peptides G3 show good organogel properties with a minimum gelation concentration as low as 1 wt %. Furthermore, amphiphilic dendritic peptides G3 can form a hexagonal columnar liquid crystal assembly over a wide temperature range.
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http://dx.doi.org/10.3762/bjoc.7.26 | DOI Listing |
Pharmaceutics
November 2024
The National Dendrimer & Nanotechnology Center, NanoSynthons LLC, Mt. Pleasant, MI 48858, USA.
This perspective begins with an overview of the major impact that the dendron, dendrimer, and dendritic state (DDDS) discovery has made on traditional polymer science. The entire DDDS technology is underpinned by an unprecedented new polymerization strategy referred to as step-growth, amplification-controlled polymerization (SGACP). This new SGACP paradigm allows for routine polymerization of common monomers and organic materials into precise monodispersed, dendritic macromolecules (i.
View Article and Find Full Text PDFActa Biomater
December 2024
Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao 266021, China. Electronic address:
Platinum (Pt)-based anticancer agents exhibit a lack of selectivity in the treatment of osteosarcoma, resulting in significant toxicity. Furthermore, immune surveillance withinthe tumor microenvironment impedes the uptake of platinum drugs by osteosarcoma cells. To overcome these challenges, an oxaliplatin-based Pt prodrug amphiphile (Lipo-OXA-ALN) was designed and synthesized by incorporatingan osteosarcoma-targeting alendronate (ALN) alongside a lipid tail.
View Article and Find Full Text PDFMacromolecules
November 2024
Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel-Aviv University, Tel- Aviv 6997801, Israel.
In recent years, the development of nanoreactors, such as micellar nanoreactors (MNRs) for catalytic transformations, has gained significant attention due to their potential in enhancing reaction rates, selectivity, efficiency, and, as importantly, the ability to conduct organic chemistry in aqueous solutions. Among these, the copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction represents a pivotal transformation and is widely used in the synthesis of bioconjugates, pharmaceuticals, and advanced materials. This study aims toward advancing our understanding of the design and utilization of polymeric amphiphiles containing tris-triazole ligands as an integral element for CuAAC reactions within MNRs.
View Article and Find Full Text PDFChemistry
January 2025
International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Mailbox 152, Shangda Rd. 99, Shanghai, 200444, China.
Dendritic amphiphiles are a promising class of topological blocks for self-assembly to construct chiral supramolecular aggregates in aqueous media. Their unique dendritic geometry, structure variability and multivalence can mediate the assemblies with versatile morphologies and functions. The bulky dendritic moieties also enable the appropriate association-repulsion balance to control supramolecular growth, and simultaneously shield the assemblies with enhanced stabilities.
View Article and Find Full Text PDFACS Appl Mater Interfaces
December 2024
State Key Laboratory of Biochemical Engineering, Key Laboratory of Biopharmaceutical Preparation and Delivery, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
Triple-negative breast cancer (TNBC) is known for its poor prognosis and aggressive behavior, being highly prone to recurrence and metastasis, and currently has limited effective treatment options. Photothermal therapy (PTT) is an emerging, minimally invasive, low-drug-resistance, and precisely controllable therapeutic method for cancer treatment, offering hope to break through the bottleneck in TNBC therapy. The antitumor efficiency of PTT is predominantly contingent upon the performance of the photothermal drugs.
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