scholarly journals Applications of graphene-based composite hydrogels: a review

RSC Advances ◽  
2017 ◽  
Vol 7 (80) ◽  
pp. 51008-51020 ◽  
Author(s):  
Hao Lu ◽  
Shengtao Zhang ◽  
Lei Guo ◽  
Weihua Li

Graphene-based hydrogels, which utilize graphene as a filler to blend with various molecules, have been widely applied in many fields such as drug delivery, water purification, and energy storage.

2012 ◽  
Vol 465 ◽  
pp. 136-140
Author(s):  
Shao Peng Wang ◽  
Bing Yu ◽  
Hai Lin Cong ◽  
Xue Bai

Liquid marbles are hydrophilic liquid drops encapsulated with hydrophobic powder materials. The liquid marbles have potential applications in drug delivery, water purification, ferrofluidic device and sensor microfabrication. In this work, a new type of polytetrafluoroethylene nanoparticle (PTFE-NP) liquid marbles were fabricated successfully using mixing method. The morphology of the formed liquid marbles was characterized under different conditions, and novel properties of the PTFE-NP liquid marbles were investigated and demonstrated.


2021 ◽  
Author(s):  
Gurwinder Singh ◽  
Rohan Bahadur ◽  
Ajanya Maria Ruban ◽  
Jefrin Marykala Davidraj ◽  
Dawei Su ◽  
...  

Nanoporous biocarbons derived from waste biomass have created significant attention owing to their great potential for energy storage and conversion and water purification. However, the fabrication technology for these materials...


ChemMedChem ◽  
2017 ◽  
Vol 12 (19) ◽  
pp. 1600-1609 ◽  
Author(s):  
Xinyu Hu ◽  
Yongmei Wang ◽  
Liangliang Zhang ◽  
Man Xu ◽  
Jianfa Zhang ◽  
...  

Polymers ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1009 ◽  
Author(s):  
Ko-Shao Chen ◽  
Shu-Ju Chang ◽  
Chi-Kuang Feng ◽  
Win-Li Lin ◽  
Shu-Chuan Liao

When stainless steel is implanted in human bodies, the corrosion resistance and biocompatibility must be considered. In this study, first, a protective organic silicone film was coated on the surface of stainless steel by a plasma deposition technique with a precursor of hexamethyldisilazane (HMDSZ). Then, ultraviolet (UV) light-induced graft polymerization of N-isopropylacrylamide (NIPAAm) and acrylic acid (AAc) in different molar ratios were applied onto the organic silicone film in order to immobilize thermos-/pH-sensitive composite hydrogels on the surface. The thermo-/pH-sensitive composite hydrogels were tested at pH values of 4, 7.4 and 10 of a phosphate buffer saline (PBS) solution at a fixed temperature of 37 °C to observe the swelling ratio and drug delivery properties of caffeine which served as a drug delivery substance. According to the results of Fourier Transformation Infrared (FTIR) spectra and a potential polarization dynamic test, the silicone thin film formed by plasma deposition not only improved the adhesion ability between the substrate and hydrogels but also exhibited a high corrosion resistance. Furthermore, the composite hydrogels have an excellent release ratio of up to 90% of the absorbed amount after 8h at a pH of 10. In addition, the results of potential polarization dynamic tests showed that the corrosion resistance of stainless steel could be improved by the HMDSZ plasma deposition.


2021 ◽  
Author(s):  
Muhammad Ikram ◽  
Ali Raza ◽  
Khurram Shahzad ◽  
Ali Haider ◽  
Junaid Haider ◽  
...  

Advance carbon material that includes graphene, fullerenes, hierarchical carbon, and CNTs are referred to as strength of revolution and advancement in the era of material science and technology. In general, 20th century corresponds to plastic meanwhile 21st century will be named as “Century of Graphene” owing to its exceptional physical properties. Graphene is now well-known and prominent 2D carbon allotrope that is considered as multipurpose material in comparison with any material discovered on earth. One of the interesting properties of graphene is strongest and lightest material that enables it to conduct electricity and heat as compared to any other material. Such features permit it to utilize in numerous applications including biosensors, electronic industry, environmental remediation, drug delivery, energy storage, and production as well. Owing to these capabilities, it can be stated that graphene can be utilized to improve effectiveness and performance of existing substances and materials. In the future, conjugation of graphene with other 2D material will be devolved to produce further remarkable compounds that make it appropriate for an extensive variety of applications. This chapter grants the utilization and applications of advanced carbons materials in chemical, polymer, sensing and energy enegineering.


Synlett ◽  
2020 ◽  
Vol 31 (16) ◽  
pp. 1573-1580 ◽  
Author(s):  
Adam J. Matzger ◽  
Kuthuru Suresh ◽  
Vilmalí López-Mejías ◽  
Saikat Roy ◽  
Daniel F. Camacho

Amorphous pharmaceuticals often suffer from poor physical stability, which can negate their high solubility, fast dissolution rate, and better oral bioavailability vs. crystalline forms. This represents a major hurdle to processing, storage, and delivery of amorphous pharmaceuticals. Several approaches to addressing these problems have been pursued, but there is still a need for a general method for stabilizing the amorphous form. We describe a novel approach using a water-unstable metal-organic framework as a drug delivery vehicle that demonstrates improved amorphous form stability accompanied by remarkably enhanced solubility and a fast dissolution rate. This research project spanned eleven years from conception to realization and dissemination. With origins in understanding the stability or porous solids for energy storage materials, the work also highlights potential of basic science understanding to illuminate new areas of application.


2020 ◽  
Vol 44 (3) ◽  
pp. 1036-1044 ◽  
Author(s):  
Beibei Liu ◽  
Lei Liu ◽  
Yifeng Yu ◽  
Yue Zhang ◽  
Aibing Chen

Mesoporous carbon (MC) has wide applications, including in drug delivery, catalysis, absorption, energy storage/conversion, etc.


2020 ◽  
Vol 7 (5) ◽  
pp. 1319-1347 ◽  
Author(s):  
Botao Liu ◽  
Kumar Vikrant ◽  
Ki-Hyun Kim ◽  
Vanish Kumar ◽  
Suresh Kumar Kailasa

Metal–organic frameworks (MOFs) are well known for their versatile applications in diverse fields (e.g., gas adsorption, water purification, sensing, drug delivery, and catalysis).


Soft Matter ◽  
2019 ◽  
Vol 15 (13) ◽  
pp. 2722-2736 ◽  
Author(s):  
Anna Puiggalí-Jou ◽  
Luis J. del Valle ◽  
Carlos Alemán

Molecular sensing, water purification and desalination, drug delivery, and DNA sequencing are some striking applications of biomimetic hybrid membranes.


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