Polymer based nanoparticles for biomedical applications by microfluidic techniques: from the design to the biological evaluation

2021 ◽  
Author(s):  
assunta borzacchiello ◽  
Antonio Fabozzi ◽  
Francesca Della Sala ◽  
Mario di Gennaro ◽  
Nicola Solimando ◽  
...  

The development of microfluidic technologies represents a new strategy to produce and test drug delivery systems. Particularly microfluidics can facilitate the development of new nanoparticles-based systems with controlled physicochemical properties...

Marine Drugs ◽  
2020 ◽  
Vol 18 (11) ◽  
pp. 583
Author(s):  
Edisson-Mauricio Pacheco-Quito ◽  
Roberto Ruiz-Caro ◽  
María-Dolores Veiga

Marine resources are today a renewable source of various compounds, such as polysaccharides, that are used in the pharmaceutical, medical, cosmetic, and food fields. In recent years, considerable attention has been focused on carrageenan-based biomaterials due to their multifunctional qualities, including biodegradability, biocompatibility, and non-toxicity, in addition to bioactive attributes, such as their antiviral, antibacterial, antihyperlipidemic, anticoagulant, antioxidant, antitumor, and immunomodulating properties. They have been applied in pharmaceutical formulations as both their bioactive and physicochemical properties make them suitable biomaterials for drug delivery, and recently for the development of tissue engineering. This article provides a review of recent research on the various types of carrageenan-based biomedical and pharmaceutical applications.


2020 ◽  
Vol 21 ◽  
Author(s):  
Dickson Pius Wande ◽  
Qin Cui ◽  
Shijie Chen ◽  
Cheng Xu ◽  
Hui Xiong ◽  
...  

: As a unique and pleiotropic polymer, d-alpha-tocopheryl polyethylene glycol succinate (Tocophersolan) is a polymeric synthetic version of vitamin E. Tocophersolan has attracted enormous attention as a versatile excipient in different biomedical applications including drug delivery systems and nutraceuticals. The multiple inherent properties of Tocophersolan make it play flexible roles in drug delivery system design, including excipients with outstanding biocompatibility, solubilizer with the ability of promoting drug dissolution, drug permeation enhancer, P-glycoprotein inhibitor and anticancer compound. For these reasons, Tocophersolan has been widely used for improving the bioavailability of numerous pharmaceutical active ingredients. Tocophersolan has been approved by stringent regulatory authorities (such as US FDA, EMA, and PMDA) as a safe pharmaceutical excipient. In this review, we systematically curated current advances in nano-based delivery systems consisting of Tocophersolan with possibilities for futuristic applications in drug delivery, gene therapy, and nanotheranostic.


2018 ◽  
Vol 6 (4) ◽  
pp. 877-884 ◽  
Author(s):  
Po Li ◽  
Yue Yan ◽  
Binlong Chen ◽  
Pan Zhang ◽  
Siling Wang ◽  
...  

In recent years, multifunctional nanoparticles have attracted much research interest in various biomedical applications such as biosensors, diagnosis, and drug delivery systems.


2019 ◽  
Vol 91 (4) ◽  
pp. 687-706 ◽  
Author(s):  
María Vallet-Regí

Abstract Since the second half of the 20th century, bioceramics are used for bone repair and regeneration. Inspired by bones and teeth, and aimed at mimicking their structure and composition, several artificial bioceramics were developed for biomedical applications. And nowadays, in the 21st century, with the increasing prominence of nanoscience and nanotechnology, certain bioceramics are being used to build smart drug delivery systems, among other applications. This minireview will mainly describe both tendencies through the research work carried out by the research team of María Vallet-Regí.


Pharmaceutics ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 495 ◽  
Author(s):  
Hakkarainen ◽  
Kõrkjas ◽  
Laidmäe ◽  
Lust ◽  
Semjonov ◽  
...  

We investigated nozzleless ultrasound-enhanced electrospinning (USES) as means to generate nanofibrous drug delivery systems (DDSs) for pharmaceutical and biomedical applications. Traditional electrospinning (TES) equipped with a conventional spinneret was used as a reference method. High-molecular polyethylene oxide (PEO) and chitosan were used as carrier polymers and theophylline anhydrate as a water-soluble model drug. The nanofibers were electrospun with the diluted mixture (7:3) of aqueous acetic acid (90% v/v) and formic acid solution (90% v/v) (with a total solid content of 3% w/v). The fiber diameter and morphology of the nanofibrous DDSs were modulated by varying ultrasonic parameters in the USES process (i.e., frequency, pulse repetition frequency and cycles per pulse). We found that the USES technology produced nanofibers with higher fiber diameter (402 ± 127 nm) than TES (77 ± 21 nm). An increase of a burst count in USES increased the fiber diameter (555 ± 265 nm) and the variation in fiber size. The slight-to-moderate changes in a solid state (crystallinity) were detected when compared the nanofibers generated by TES and USES. In conclusion, USES provides a promising alternative for aqueous-based fabrication of nanofibrous DDSs for pharmaceutical and biomedical applications.


Adsorption ◽  
2019 ◽  
Vol 25 (3) ◽  
pp. 383-391 ◽  
Author(s):  
Adam Bieniek ◽  
Marek Wiśniewski ◽  
Katarzyna Roszek ◽  
Paulina Bolibok ◽  
Artur P. Terzyk ◽  
...  

Molecules ◽  
2019 ◽  
Vol 24 (6) ◽  
pp. 1089 ◽  
Author(s):  
Chenyu Wang ◽  
Bozhong Lin ◽  
Haopeng Zhu ◽  
Fei Bi ◽  
Shanshan Xiao ◽  
...  

Glucose-sensitive drug platforms are highly attractive in the field of self-regulated drug delivery. Drug carriers based on boronic acid (BA), especially phenylboronic acid (PBA), have been designed for glucose-sensitive self-regulated insulin delivery. The PBA-functionalized gels have attracted more interest in recent years. The cross-linked three-dimensional (3D) structure endows the glucose-sensitive gels with great physicochemical properties. The PBA-based platforms with cross-linked structures have found promising applications in self-regulated drug delivery systems. This article summarizes some recent attempts at the developments of PBA-mediated glucose-sensitive gels for self-regulated drug delivery. The PBA-based glucose-sensitive gels, including hydrogels, microgels, and nanogels, are expected to significantly promote the development of smart self-regulated drug delivery systems for diabetes therapy.


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