Core-crosslinked amphiphilic biodegradable copolymer based on the complementary multiple hydrogen bonds of nucleobases: synthesis, self-assembly and in vitro drug delivery

2012 ◽  
Vol 22 (47) ◽  
pp. 24832 ◽  
Author(s):  
Huihui Kuang ◽  
Suhong Wu ◽  
Fanbo Meng ◽  
Zhigang Xie ◽  
Xiabin Jing ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Hydrogen Bonds ◽  
Self Assembly ◽  
Biodegradable Copolymer ◽  
Multiple Hydrogen Bonds

Supramolecular Copolymer Micelles Based on the Complementary Multiple Hydrogen Bonds of Nucleobases for Drug Delivery

2011 ◽  
Vol 12 (4) ◽  
pp. 1370-1379 ◽  
Author(s):  
Dali Wang ◽  
Yue Su ◽  
Chengyu Jin ◽  
Bangshang Zhu ◽  
Yan Pang ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Hydrogen Bonds ◽  
Copolymer Micelles ◽  
Multiple Hydrogen Bonds

Multiple Hydrogen Bonds in the Self-Assembly of Aminotriazine and Glutarimide. Decisive Role of the Triazine Substituents

2008 ◽  
Vol 8 (5) ◽  
pp. 1585-1594 ◽  
Author(s):  
Blanca R. Manzano ◽  
Félix A. Jalón ◽  
M. Laura Soriano ◽  
Ana M. Rodríguez ◽  
Antonio de la Hoz ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Self Assembly ◽  
Decisive Role ◽  
The Self ◽  
Multiple Hydrogen Bonds

Norbornene-Functionalised Chitosan Hydrogels and Microgels via an Unprecedented Photo-Initiated Self-Assembly for Potential Biomedical Applications

2020 ◽  
Author(s):  
Sarah michel ◽  
Alice Kilner ◽  
Jean-Charles Eloi ◽  
Sarah E rogers ◽  
Wuge H. Briscoe ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Self Assembly ◽  
Biomedical Applications ◽  
Hydrophobic Interactions ◽  
Gelation Mechanism ◽  
Swelling Behaviour ◽  
Assembly Mechanism ◽  
Significant Toxicity ◽  
Chitosan Hydrogels

<p><br></p><p> Access to biocompatible self-assembled gels and microgels is of great interests for a variety of biological applications from tissue engineering to drug delivery. Here, the facile synthesis of supramolecular hydrogels of norbornene (nb)-functionalised chitosan (CS-nb) via UV-triggered self-assembly in the presence of Irgacure 2959 (IRG) is reported. The <i>in vitro </i>stable hydrogels are injectable and showed pH-responsive swelling behaviour, while their structure and mechanical properties could be tuned by tailoring the stereochemistry of the norbornene derivative (e.g. <i>endo</i>- or -<i>exo</i>). Interestingly, unlike other nb-type hydrogels, the gels possess nanopores within their structure, which might lead to potential drug delivery applications. A gelation mechanism was proposed based on hydrophobic interactions following the combination of IRG on norbornene, as supported by 1H NMR. This self-assembly mechanism was used to access microgels of size 100-150 nm which could be further functionalised and showed no significant toxicity to human dermofibroblast cells. </p>

scholarly journals Micellar Nanocarriers from Dendritic Macromolecules Containing Fluorescent Coumarin Moieties

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2872
Author(s):  
Alberto Concellón ◽  
María San Anselmo ◽  
Silvia Hernández-Ainsa ◽  
Pilar Romero ◽  
Mercedes Marcos ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Self Assembly ◽  
Materials Science ◽  
Nile Red ◽  
Drug Delivery Vehicles ◽  
Delivery Vehicles ◽  
Spherical Micelles ◽  
Assembly Behavior ◽  
Hexagonal Columnar

The design of efficient drug-delivery vehicles remains a big challenge in materials science. Herein, we describe a novel class of amphiphilic hybrid dendrimers that consist of a poly(amidoamine) (PAMAM) dendritic core functionalized with bisMPA dendrons bearing cholesterol and coumarin moieties. Their self-assembly behavior both in bulk and in water was investigated. All dendrimers exhibited smectic A or hexagonal columnar liquid crystal organizations, depending on the generation of the dendrimer. In water, these dendrimers self-assembled to form stable spherical micelles that could encapsulate Nile Red, a hydrophobic model compound. The cell viability in vitro of the micelles was studied in HeLa cell line, and proved to be non-toxic up to 72 h of incubation. Therefore, these spherical micelles allow the encapsulation of hydrophobic molecules, and at the same time provided fluorescent traceability due to the presence of coumarin units in their chemical structure, demonstrating the potential of these dendrimers as nanocarriers for drug-delivery applications.

scholarly journals In vivo and in vitro evaluation of dihydroartemisinin prodrug nanocomplexes as a nano-drug delivery system: characterization, pharmacokinetics and pharmacodynamics

RSC Advances ◽  
2020 ◽  
Vol 10 (29) ◽  
pp. 17270-17279 ◽  
Author(s):  
Guolian Ren ◽  
Pei Chen ◽  
Jiaqi Tang ◽  
Wenju Guo ◽  
Rongrong Wang ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Self Assembly ◽  
Pharmacokinetics And Pharmacodynamics ◽  
Lower Toxicity ◽  
Nano Drug Delivery ◽  
System Characterization ◽  
Assembly Technology

To develop new, more effective and lower toxicity antitumor dihydroartemisinin (DHA) nanocomplexes, a DHA prodrug synthesized in this study was used to prepare DHA prodrug self-assembled nanocomplexes (DHANPs) by molecular self-assembly technology.

scholarly journals Norbornene-Functionalised Chitosan Hydrogels and Microgels via an Unprecedented Photo-Initiated Self-Assembly for Potential Biomedical Applications

2020 ◽  
Author(s):  
Sarah michel ◽  
Alice Kilner ◽  
Jean-Charles Eloi ◽  
Sarah E rogers ◽  
Wuge H. Briscoe ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Self Assembly ◽  
Biomedical Applications ◽  
Hydrophobic Interactions ◽  
Gelation Mechanism ◽  
Swelling Behaviour ◽  
Assembly Mechanism ◽  
Significant Toxicity ◽  
Chitosan Hydrogels

<p><br></p><p> Access to biocompatible self-assembled gels and microgels is of great interests for a variety of biological applications from tissue engineering to drug delivery. Here, the facile synthesis of supramolecular hydrogels of norbornene (nb)-functionalised chitosan (CS-nb) via UV-triggered self-assembly in the presence of Irgacure 2959 (IRG) is reported. The <i>in vitro </i>stable hydrogels are injectable and showed pH-responsive swelling behaviour, while their structure and mechanical properties could be tuned by tailoring the stereochemistry of the norbornene derivative (e.g. <i>endo</i>- or -<i>exo</i>). Interestingly, unlike other nb-type hydrogels, the gels possess nanopores within their structure, which might lead to potential drug delivery applications. A gelation mechanism was proposed based on hydrophobic interactions following the combination of IRG on norbornene, as supported by 1H NMR. This self-assembly mechanism was used to access microgels of size 100-150 nm which could be further functionalised and showed no significant toxicity to human dermofibroblast cells. </p>

Paclitaxel-tyroserleutide Conjugates Self-assembly into Nanocarrier for Drug Delivery

2019 ◽  
Vol 16 (8) ◽  
pp. 882-891
Author(s):  
Yongjia Liu ◽  
Leilei Shi ◽  
Bangshang Zhu ◽  
Yue Su ◽  
Hui Li ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Self Assembly ◽  
Water Solubility ◽  
Drug Carrier ◽  
Drug Loading ◽  
Cancer Therapeutics ◽  
Drug Carriers ◽  
Pharmacokinetic Studies ◽  
Assembly Method

Background: The drug-drug self-assembly was considered as a simple and efficient approach to prepare high drug loading nano-drug carriers and present new opportunities for cancer therapeutics. The strategy of PTX amphiphiles preparation would be a possible way to solve the poor water solubility of PTX. Methods: The PTX-YSL conjugate were synthesized and characterized. The PTX-YSL nanocarriers was prepared by a simple self-assembly method. In vitro cell studies and pharmacokinetic studies were evaluated for their in vitro anti-tumor activities and blood retention time. Results: The structures of PTX-YSL conjugate were confirmed by LC-MS, 1H NMR and FTIR. The size and morphology of the PTX-YSL self-assembled nanocarriers were observed with TEM and DLS. PTX-YSL nanocarriers could facilitate cellular uptake and had low cytotoxicity. PTX-YSL nanocarriers have longer blood retention for enhancing accumulation in the tumor tissues via EPR effect. Conclusion: This drug delivery system formed by PTX-YSL conjugates constitutes a promising and effective drug carrier in cancer therapy.

Double pH-responsive supramolecular copolymer micelles based on the complementary multiple hydrogen bonds of nucleobases and acetalated dextran for drug delivery

2015 ◽  
Vol 6 (19) ◽  
pp. 3625-3633 ◽  
Author(s):  
Huihui Kuang ◽  
Yanjuan Wu ◽  
Zhiyun Zhang ◽  
Jizhen Li ◽  
Xuesi Chen ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Ph Responsive ◽  
Copolymer Micelles ◽  
Multiple Hydrogen Bonds

The formation and destabilization of supramolecular micelles based on hydrogen bonding between nucleobases and acetalated dextran.

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