scholarly journals Redox-responsive, reversibly fluorescent nanoparticles from sustainable cellulose derivatives

2014 ◽  
Vol 2 (33) ◽  
pp. 13675-13681 ◽  
Author(s):  
Wei Li ◽  
Wei Wang ◽  
Yongbiao Yang ◽  
Kai Zhang
Keyword(s):  
Fluorescent Nanoparticles ◽  
Cellulose Derivatives ◽  
Stimuli Responsive ◽  
Redox Responsive ◽  
Fluorescent Compounds

Multi-stimuli responsive and reversibly fluorescent compounds from sustainable cellulose were synthesized after the introduction of thiol and rhodamine spiroamide groups.

scholarly journals Correction: Redox-responsive, reversibly fluorescent nanoparticles from sustainable cellulose derivatives

2015 ◽  
Vol 3 (19) ◽  
pp. 10610-10610 ◽  
Author(s):  
Wei Wang ◽  
Wei Li ◽  
Kai Zhang
Keyword(s):  
Fluorescent Nanoparticles ◽  
Cellulose Derivatives ◽  
Redox Responsive

Correction for ‘Redox-responsive, reversibly fluorescent nanoparticles from sustainable cellulose derivatives’ by Wei Wang et al., J. Mater. Chem. A, 2014, 2, 13675–13681.

scholarly journals Combining Dextran Conjugates with Stimuli-Responsive and Folate-Targeting Activity: A New Class of Multifunctional Nanoparticles for Cancer Therapy

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1108
Author(s):  
Manuela Curcio ◽  
Alessandro Paolì ◽  
Giuseppe Cirillo ◽  
Sebastiano Di Pietro ◽  
Martina Forestiero ◽  
...  
Keyword(s):  
Cancer Therapy ◽  
Drug Release ◽  
Metastatic Cancer ◽  
Stimuli Responsive ◽  
Cancer Disease ◽  
New Class ◽  
Self Assembling ◽  
Redox Responsive ◽  
Potential Applicability ◽  
Mean Size

Nanoparticles with active-targeting and stimuli-responsive behavior are a promising class of engineered materials able to recognize the site of cancer disease, targeting the drug release and limiting side effects in the healthy organs. In this work, new dual pH/redox-responsive nanoparticles with affinity for folate receptors were prepared by the combination of two amphiphilic dextran (DEX) derivatives. DEXFA conjugate was obtained by covalent coupling of the polysaccharide with folic acid (FA), whereas DEXssPEGCOOH derived from a reductive amination step of DEX was followed by condensation with polyethylene glycol 600. After self-assembling, nanoparticles with a mean size of 50 nm, able to be destabilized in acidic pH and reducing media, were obtained. Doxorubicin was loaded during the self-assembling process, and the release experiments showed the ability of the proposed system to modulate the drug release in response to different pH and redox conditions. Finally, the viability and uptake experiments on healthy (MCF-10A) and metastatic cancer (MDA-MB-231) cells proved the potential applicability of the proposed system as a new drug vector in cancer therapy.

Redox‐responsive Fluorescent Nanoparticles Based on Diselenide‐containing AIEgens for Cell Imaging and Selective Cancer Therapy

2018 ◽  
Vol 14 (10) ◽  
pp. 1745-1753 ◽  
Author(s):  
Wenkun Han ◽  
Song Zhang ◽  
Jingyu Qian ◽  
Jianxu Zhang ◽  
Xuanhang Wang ◽  
...  
Keyword(s):  
Cancer Therapy ◽  
Cell Imaging ◽  
Fluorescent Nanoparticles ◽  
Redox Responsive

scholarly journals Reversible Protein Capture and Release by Redox-Responsive Hydrogel in Microfluidics

Polymers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 267
Author(s):  
Chen Jiao ◽  
Franziska Obst ◽  
Martin Geisler ◽  
Yunjiao Che ◽  
Andreas Richter ◽  
...  
Keyword(s):  
Microfluidic Device ◽  
Disulfide Bonds ◽  
Stimuli Responsive ◽  
Disulfide Exchange ◽  
Protein Capture ◽  
Wide Range ◽  
Redox Responsive ◽  
Potential Applications ◽  
Capture And Release ◽  
Cross Linker

Stimuli-responsive hydrogels have a wide range of potential applications in microfluidics, which has drawn great attention. Double cross-linked hydrogels are very well suited for this application as they offer both stability and the required responsive behavior. Here, we report the integration of poly(N-isopropylacrylamide) (PNiPAAm) hydrogel with a permanent cross-linker (N,N′-methylenebisacrylamide, BIS) and a redox responsive reversible cross-linker (N,N′-bis(acryloyl)cystamine, BAC) into a microfluidic device through photopolymerization. Cleavage and re-formation of disulfide bonds introduced by BAC changed the cross-linking densities of the hydrogel dots, making them swell or shrink. Rheological measurements allowed for selecting hydrogels that withstand long-term shear forces present in microfluidic devices under continuous flow. Once implemented, the thiol-disulfide exchange allowed the hydrogel dots to successfully capture and release the protein bovine serum albumin (BSA). BSA was labeled with rhodamine B and functionalized with 2-(2-pyridyldithio)-ethylamine (PDA) to introduce disulfide bonds. The reversible capture and release of the protein reached an efficiency of 83.6% in release rate and could be repeated over 3 cycles within the microfluidic device. These results demonstrate that our redox-responsive hydrogel dots enable the dynamic capture and release of various different functionalized (macro)molecules (e.g., proteins and drugs) and have a great potential to be integrated into a lab-on-a-chip device for detection and/or delivery.

Reversible formation of multiple stimuli-responsive polymeric materials through processing control of trifunctional amphiphilic molecules

2020 ◽  
Vol 56 (57) ◽  
pp. 7881-7884
Author(s):  
Takahiro Muraoka ◽  
Hidetaka Honda ◽  
Kota Nabeya ◽  
Kazushi Kinbara
Keyword(s):  
Polymeric Materials ◽  
Stimuli Responsive ◽  
Amphiphilic Molecules ◽  
Redox Responsive ◽  
Reversible Formation ◽  
Processing Control

A trifunctional amphiphile consisting of thermo-responsive, redox-responsive, and photo-responsive units achieved reversible formation of multiple stimuli-responsive polymeric materials.

Thermo- and redox-responsive dumbbell-shaped copolymers: from structure design to the LCST–UCST transition

2020 ◽  
Vol 11 (4) ◽  
pp. 830-842 ◽  
Author(s):  
Hui Zou ◽  
Qiliang Wu ◽  
Qianwei Li ◽  
Chunyao Wang ◽  
Li Zhou ◽  
...  
Keyword(s):  
Self Assembly ◽  
Structure Design ◽  
Stimuli Responsive ◽  
Redox Responsive

Redox- and thermo-responsive dumbbell-shaped copolymers and their self-assembly and stimuli-responsive properties were investigated.

scholarly journals Stimuli-responsive nanoparticles from ionic cellulose derivatives

Nanoscale ◽  
2016 ◽  
Vol 8 (1) ◽  
pp. 648-657 ◽  
Author(s):  
Yonggui Wang ◽  
Thomas Heinze ◽  
Kai Zhang
Keyword(s):  
Cellulose Derivatives ◽  
Stimuli Responsive

Novel tri-[2]rotaxane-based stimuli-responsive fluorescent nanoparticles and their guest controlled reversible morphological transformation properties

2021 ◽  
Vol 9 (11) ◽  
pp. 3863-3870
Author(s):  
Qi Lin ◽  
Zhong-Hui Wang ◽  
Ting-Ting Huang ◽  
Tai-Bao Wei ◽  
Hong Yao ◽  
...  
Keyword(s):  
Fluorescent Nanoparticles ◽  
Stimuli Responsive ◽  
Suberic Acid ◽  
Morphological Transformation ◽  
Fluorescence Response ◽  
Fluorescent Nanomaterials

Novel tri-[2]rotaxane-based fluorescent nanomaterials show selective fluorescence response towards suberic acid and could reversibly switch from nanoparticles to nano-film.

Recent Developments in Solvent-Based Fluid Separations

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Boelo Schuur ◽  
Thomas Brouwer ◽  
Lisette M.J. Sprakel
Keyword(s):  
Carbon Capture ◽  
Fluid Phase ◽  
Deep Eutectic Solvents ◽  
Annual Review ◽  
Publication Date ◽  
Stimuli Responsive ◽  
Redox Responsive ◽  
Recent Developments ◽  
Application Fields ◽  
Molecular Solvents

The most important developments in solvent-based fluid separations, separations involving at least one fluid phase, are reviewed. After a brief introduction and discussion on general solvent trends observed in all fields of application, several specific fields are discussed. Important solvent trends include replacement of traditional molecular solvents by ionic liquids and deep eutectic solvents and, more recently, increasing discussion around bio-based solvents in some application fields. Furthermore, stimuli-responsive systems are discussed; the most significant developments in this field are seen for CO2-switchable and redox-responsive solvents. Discussed fields of application include hydrocarbons separations, carbon capture, biorefineries, and metals separations. For all but the hydrocarbons separations, newly reported electrochemically mediated separations seem to offer exciting new windows of opportunities. Expected final online publication date for the Annual Review of Chemical and Biomolecular Engineering, Volume 12 is June 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Natural Polymer-based Stimuli-responsive Hydrogels

2020 ◽  
Vol 27 (16) ◽  
pp. 2631-2657 ◽  
Author(s):  
Yuheng Jiang ◽  
Ying Wang ◽  
Qin Li ◽  
Chen Yu ◽  
Wanli Chu
Keyword(s):  
Natural Polymer ◽  
Stimuli Responsive ◽  
Medical Field ◽  
Preparation Methods ◽  
Polymer Hydrogels ◽  
Advanced Technologies ◽  
Redox Responsive ◽  
Good Biocompatibility ◽  
External Stimuli ◽  
Responsive Hydrogels

The abilities of intelligent polymer hydrogels to change their structure and volume phase in response to external stimuli have provided new possibilities for various advanced technologies and great research and application potentials in the medical field. The natural polymer-based hydrogels have the advantages of environment-friendliness, rich sources and good biocompatibility. Based on their responsiveness to external stimuli, the natural polymer-based hydrogels can be classified into the temperature-responsive hydrogel, pH-responsive hydrogel, light-responsive hydrogel, electricresponsive hydrogel, redox-responsive hydrogel, enzyme-responsive hydrogel, magnetic-responsive hydrogel, multi-responsive hydrogel, etc. In this review, we have compiled some recent studies on natural polymer-based stimuli-responsive hydrogels, especially the hydrogels prepared from polysaccharides. The preparation methods, properties and applications of these hydrogels in the medical field are highlighted.

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