scholarly journals Injectable Amorphous Chitin-Agarose Composite Hydrogels for Biomedical Applications

2015 ◽  
Vol 6 (3) ◽  
pp. 849-862 ◽  
Author(s):  
Murali Priya ◽  
Rajendran Kumar ◽  
Amirthalingam Sivashanmugam ◽  
Shantikumar Nair ◽  
Rangasamy Jayakumar
Keyword(s):  
Biomedical Applications ◽  
Composite Hydrogels ◽  
Amorphous Chitin

scholarly journals Effect of ionic strength on shear-thinning nanoclay–polymer composite hydrogels

2018 ◽  
Vol 6 (8) ◽  
pp. 2073-2083 ◽  
Author(s):  
Amir Sheikhi ◽  
Samson Afewerki ◽  
Rahmi Oklu ◽  
Akhilesh K. Gaharwar ◽  
Ali Khademhosseini
Keyword(s):  
Ionic Strength ◽  
Rheological Properties ◽  
Polymer Composite ◽  
Biomedical Applications ◽  
Shear Thinning ◽  
Composite Hydrogels ◽  
Polymer Interactions ◽  
Fundamental Insight ◽  
Insight Into

The effect of ionic strength on the structure and rheological properties of nanoclay–gelatin shear-thinning biomaterials (STBs) is investigated. A fundamental insight into nanoclay–polymer interactions in physiological environments is provided to design clay-based biomaterials for biomedical applications.

Injectable and mechanically robust 4-arm PPO–PEO/graphene oxide composite hydrogels for biomedical applications

2015 ◽  
Vol 51 (42) ◽  
pp. 8876-8879 ◽  
Author(s):  
Yunki Lee ◽  
Jin Woo Bae ◽  
Thai Thanh Hoang Thi ◽  
Kyung Min Park ◽  
Ki Dong Park
Keyword(s):  
Graphene Oxide ◽  
Biomedical Applications ◽  
Cross Linking ◽  
Oxide Composite ◽  
Composite Hydrogels

Graphene-based nanomaterials with different oxidation degrees were incorporated into Tetronic–tyramine (Tet–TA) hydrogels via enzymatic cross-linking.

Chitosan-based composite hydrogels for biomedical applications

2017 ◽  
Vol 25 (6) ◽  
pp. 480-488 ◽  
Author(s):  
Tepeng Wu ◽  
Yi Li ◽  
Doo Sung Lee
Keyword(s):  
Biomedical Applications ◽  
Composite Hydrogels

scholarly journals Poly(N-isopropylacrylamide)-Based Thermoresponsive Composite Hydrogels for Biomedical Applications

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 580 ◽  
Author(s):  
Xiaomin Xu ◽  
Yang Liu ◽  
Wenbo Fu ◽  
Mingyu Yao ◽  
Zhen Ding ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Biomedical Applications ◽  
Drug Loading ◽  
Inorganic Nanoparticles ◽  
Loading Capacity ◽  
Practical Applications ◽  
Composite Hydrogels ◽  
Effective Strategies ◽  
Thermosensitive Hydrogels ◽  
Functional Components

Poly(N-isopropylacrylamide) (PNIPAM)-based thermosensitive hydrogels demonstrate great potential in biomedical applications. However, they have inherent drawbacks such as low mechanical strength, limited drug loading capacity and low biodegradability. Formulating PNIPAM with other functional components to form composited hydrogels is an effective strategy to make up for these deficiencies, which can greatly benefit their practical applications. This review seeks to provide a comprehensive observation about the PNIPAM-based composite hydrogels for biomedical applications so as to guide related research. It covers the general principles from the materials choice to the hybridization strategies as well as the performance improvement by focusing on several application areas including drug delivery, tissue engineering and wound dressing. The most effective strategies include incorporation of functional inorganic nanoparticles or self-assembled structures to give composite hydrogels and linking PNIPAM with other polymer blocks of unique properties to produce copolymeric hydrogels, which can improve the properties of the hydrogels by enhancing the mechanical strength, giving higher biocompatibility and biodegradability, introducing multi-stimuli responsibility, enabling higher drug loading capacity as well as controlled release. These aspects will be of great help for promoting the development of PNIPAM-based composite materials for biomedical applications.

Recent Insights on Biomedical Applications of Bacterial Cellulose based Composite Hydrogels

2021 ◽  
Vol 28 ◽  
Author(s):  
Wei Liu ◽  
Haishun Du ◽  
Ting Zheng ◽  
Chuanling Si
Keyword(s):  
Drug Delivery ◽  
Tissue Engineering ◽  
Bacterial Cellulose ◽  
High Purity ◽  
Biomedical Applications ◽  
3D Structure ◽  
Wound Dressings ◽  
Tissue Engineering Scaffolds ◽  
Composite Hydrogels ◽  
Good Biocompatibility

Background: Bacterial cellulose (BC) and its derivatives are a rich source of renewable natural ingredients, which are of great significance for biomedical and medical applications but have not yet been fully exploited. BC is a high-purity, biocompatible, and versatile biomaterial that can be used alone or in combination with other ingredients such as polymers and nanoparticles to provide different structural organization and function. This review briefly introduces the research status of BC hydrogels, focusing on the preparation of BC based composite hydrogels and their applications in the field of biomedicine, particularly the wound dressings, tissue engineering scaffolds, and drug delivery. Methods: By reviewing the most recent literature on this subject, we summarized recent advances in the preparation of BC based composite hydrogels and their advances in biomedical applications, including wound dressings, tissue engineering, and drug delivery. Results: BC composite hydrogels have broadened the field of application of BC and developed a variety of BC-based biomaterials with excellent properties. BC-based hydrogels have good biocompatibility and broad application prospects in the biomedical field. Conclusion: BC based composite hydrogels with the advantages of 3D structure, non-toxicity, high purity, and good biocompatibility, have great prospects in the development of sustainable and multifunctional biomaterials for biomedical applications.

Composite hydrogels based on gelatin, chitosan and polyvinyl alcohol to biomedical applications: a review

2019 ◽  
Vol 69 (1) ◽  
pp. 1-20 ◽  
Author(s):  
Rogelio Rodríguez-Rodríguez ◽  
Hugo Espinosa-Andrews ◽  
Cristina Velasquillo-Martínez ◽  
Zaira Yunuen García-Carvajal
Keyword(s):  
Polyvinyl Alcohol ◽  
Biomedical Applications ◽  
Composite Hydrogels

Development of highly biocompatible Gelatin & i-Carrageenan based composite hydrogels: In depth physiochemical analysis for biomedical applications

2016 ◽  
Vol 153 ◽  
pp. 292-301 ◽  
Author(s):  
Jyostna Rani Padhi ◽  
Debasis Nayak ◽  
Arpita Nanda ◽  
Pradipta Ranjan Rauta ◽  
Sarbani Ashe ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Composite Hydrogels

Applications of Scanning Microscopy in Biomedical Research

1968 ◽  
Vol 26 ◽  
pp. 354-355
Author(s):  
T. L. Hayes
Keyword(s):  
Information Content ◽  
Biomedical Research ◽  
Biomedical Applications ◽  
Three Dimensional ◽  
Dental Enamel ◽  
Resolving Power ◽  
Whole Mount ◽  
Two Parameters ◽  
Content Information ◽  
Sectioned Tissue

Biomedical applications of the scanning electron microscope (SEM) have increased in number quite rapidly over the last several years. Studies have been made of cells, whole mount tissue, sectioned tissue, particles, human chromosomes, microorganisms, dental enamel and skeletal material. Many of the advantages of using this instrument for such investigations come from its ability to produce images that are high in information content. Information about the chemical make-up of the specimen, its electrical properties and its three dimensional architecture all may be represented in such images. Since the biological system is distinctive in its chemistry and often spatially scaled to the resolving power of the SEM, these images are particularly useful in biomedical research.In any form of microscopy there are two parameters that together determine the usefulness of the image. One parameter is the size of the volume being studied or resolving power of the instrument and the other is the amount of information about this volume that is displayed in the image. Both parameters are important in describing the performance of a microscope. The light microscope image, for example, is rich in information content (chemical, spatial, living specimen, etc.) but is very limited in resolving power.

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