scholarly journals Engineering Calcium-Bearing Mineral/Hydrogel Composites for Effective Phosphate Recovery

2021 ◽  
Author(s):  
Albern X. Tan ◽  
Elizabeth Michalski ◽  
Jan Ilavsky ◽  
Young-Shin Jun
Keyword(s):  
Phosphate Recovery ◽  
Hydrogel Composites

scholarly journals Recent Advances in Fiber–Hydrogel Composites for Wound Healing and Drug Delivery Systems

Antibiotics ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 248
Author(s):  
Marta O. Teixeira ◽  
Joana C. Antunes ◽  
Helena P. Felgueiras
Keyword(s):  
Drug Delivery ◽  
Wound Healing ◽  
Mechanical Stability ◽  
Fiber Spinning ◽  
Comprehensive Overview ◽  
Triggered Drug Release ◽  
Medicinal Properties ◽  
Hydrogel Composites ◽  
Drug Incorporation ◽  
Stimuli Sensitive

In the last decades, much research has been done to fasten wound healing and target-direct drug delivery. Hydrogel-based scaffolds have been a recurrent solution in both cases, with some reaching already the market, even though their mechanical stability remains a challenge. To overcome this limitation, reinforcement of hydrogels with fibers has been explored. The structural resemblance of fiber–hydrogel composites to natural tissues has been a driving force for the optimization and exploration of these systems in biomedicine. Indeed, the combination of hydrogel-forming techniques and fiber spinning approaches has been crucial in the development of scaffolding systems with improved mechanical strength and medicinal properties. In this review, a comprehensive overview of the recently developed fiber–hydrogel composite strategies for wound healing and drug delivery is provided. The methodologies employed in fiber and hydrogel formation are also highlighted, together with the most compatible polymer combinations, as well as drug incorporation approaches creating stimuli-sensitive and triggered drug release towards an enhanced host response.

scholarly journals Graphene Integrated Hydrogels Based Biomaterials in Photothermal Biomedicine

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 906
Author(s):  
Le Minh Tu Phan ◽  
Thuy Anh Thu Vo ◽  
Thi Xoan Hoang ◽  
Sungbo Cho
Keyword(s):  
Photothermal Therapy ◽  
Biomedical Applications ◽  
High Light ◽  
Conversion Materials ◽  
Potential Applications ◽  
Good Biocompatibility ◽  
Biomedical Field ◽  
Hydrogel Composites ◽  
Material Fabrication ◽  
Biomedical Fields

Recently, photothermal therapy (PTT) has emerged as one of the most promising biomedical strategies for different areas in the biomedical field owing to its superior advantages, such as being noninvasive, target-specific and having fewer side effects. Graphene-based hydrogels (GGels), which have excellent mechanical and optical properties, high light-to-heat conversion efficiency and good biocompatibility, have been intensively exploited as potential photothermal conversion materials. This comprehensive review summarizes the current development of graphene-integrated hydrogel composites and their application in photothermal biomedicine. The latest advances in the synthesis strategies, unique properties and potential applications of photothermal-responsive GGel nanocomposites in biomedical fields are introduced in detail. This review aims to provide a better understanding of the current progress in GGel material fabrication, photothermal properties and potential PTT-based biomedical applications, thereby aiding in more research efforts to facilitate the further advancement of photothermal biomedicine.

Hydrogel–hydrogel composites: The interfacial structure and interaction between water and polymer chains

2008 ◽  
Vol 108 (6) ◽  
pp. 3713-3719 ◽  
Author(s):  
Xinming Li ◽  
Yingde Cui ◽  
Jianliang Xiao ◽  
Liewen Liao
Keyword(s):  
Polymer Chains ◽  
Interfacial Structure ◽  
Hydrogel Composites

The effects and mechanism of alkalinity on the phosphate recovery from anaerobic digester effluent using dolomite lime

2015 ◽  
Vol 73 (9) ◽  
pp. 5067-5073 ◽  
Author(s):  
Xueyu Liu ◽  
Liancheng Xiang ◽  
Yonghui Song ◽  
Feng Qian ◽  
Xiaoguang Meng
Keyword(s):  
Anaerobic Digester ◽  
Anaerobic Digester Effluent ◽  
Phosphate Recovery

Silicone rubber-hydrogel composites as polymeric biomaterials

Biomaterials ◽  
1990 ◽  
Vol 11 (6) ◽  
pp. 393-396 ◽  
Author(s):  
I. Cifková ◽  
P. Lopour ◽  
P. Vondráček ◽  
F. Jelínek
Keyword(s):  
Silicone Rubber ◽  
Polymeric Biomaterials ◽  
Hydrogel Composites

Thermosensitive chitosan/phosphate hydrogel-composites fortified with Ag versus Ag@Pd for biomedical applications

Life Sciences ◽  
2018 ◽  
Vol 194 ◽  
pp. 185-195 ◽  
Author(s):  
Ghareib W. Ali ◽  
W. El-Hotaby ◽  
Bahaa Hemdan ◽  
Wafa I. Abdel-Fattah
Keyword(s):  
Biomedical Applications ◽  
Hydrogel Composites

Photothermal liquid release from arrayed Au nanorod/hydrogel composites for chemical stimulation

2021 ◽  
Vol 32 (1) ◽  
pp. 015003
Author(s):  
Sang-Woo Seo ◽  
Youngsik Song ◽  
Hojjat Rostami Azmand
Keyword(s):  
Near Infrared ◽  
Local Heating ◽  
Temperature Response ◽  
Device Fabrication ◽  
Fluorescent Imaging ◽  
Silicon Membrane ◽  
Chemical Release ◽  
Nir Light ◽  
Fluorescein Dye ◽  
Hydrogel Composites

Abstract Controlled photothermal actuation of liquid release is presented using periodically arrayed hydrogel columns in a macroporous silicon membrane. Thermo-responsive hydrogel is mixed with Gold (Au) nanorods, and surface plasmon-induced local heating by near-infrared (NIR) light is utilized as an actuation method. We adopted theoretical modeling, which treats the hydrogel as a poro-viscoelastic medium to understand the mechanical and liquid transport properties of the hydrogel. To demonstrate the feasibility of the liquid release control using NIR light, we first characterized the temperature response of Au nanorod embedded hydrogel in the silicon membrane using its optical transmission behavior to confirm the successful device fabrication. Next, the liquid release characteristics from the structure were studied using fluorescent imaging of fluorescein dye solution while pulsed NIR light was illuminated on the structure. We successfully demonstrate that the liquid release can be controlled using remote NIR illumination from the presented structure. Considering the periodically arrayed configuration with high spatial resolution, this will have a potential prospect for optically-addressable chemical release systems, which benefit retina prosthesis interfaces.

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