Erratum to ‘Mussel-inspired poly(γ-glutamic acid)/nanosilicate composite hydrogels with enhanced mechanical properties, tissue adhesive properties, and skin tissue regeneration’ [Acta Biomaterialia 123 (2021) 254-262]

AbstractComplex biological tissues are highly viscoelastic and dynamic. Efforts to repair or replace cartilage, tendon, muscle, and vasculature using materials that facilitate repair and regeneration have been ongoing for decades. However, materials that possess the mechanical, chemical, and resorption characteristics necessary to recapitulate these tissues have been difficult to mimic using synthetic resorbable biomaterials. Herein, we report a series of resorbable elastomer-like materials that are compositionally identical and possess varying ratios of cis:trans double bonds in the backbone. These features afford concomitant control over the mechanical and surface eroding degradation properties of these materials. We show the materials can be functionalized post-polymerization with bioactive species and enhance cell adhesion. Furthermore, an in vivo rat model demonstrates that degradation and resorption are dependent on succinate stoichiometry in the elastomers and the results show limited inflammation highlighting their potential for use in soft tissue regeneration and drug delivery.

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Effects of borax and montmorillonite contents on mechanical properties of cassava btarch-based composite hydrogels

10.1063/5.0022969 ◽

2020 ◽

Author(s):

Jiradet Sringam ◽

Tatiya Trongsatitkul ◽

Nitinat Suppakarn

Keyword(s):

Mechanical Properties ◽

Composite Hydrogels

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Nano-/Microfibrous Cotton-Wool-Like 3D Scaffold with Core–Shell Architecture by Emulsion Electrospinning for Skin Tissue Regeneration

ACS Biomaterials Science & Engineering ◽

10.1021/acsbiomaterials.7b00681 ◽

2017 ◽

Vol 3 (12) ◽

pp. 3563-3575 ◽

Cited By ~ 17

Author(s):

Pallabi Pal ◽

Pavan Kumar Srivas ◽

Prabhash Dadhich ◽

Bodhisatwa Das ◽

Dhrubajyoti Maulik ◽

...

Keyword(s):

Tissue Regeneration ◽

Skin Tissue ◽

Core Shell ◽

Cotton Wool ◽

3D Scaffold

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Thermo-sensitive, injectable, and tissue adhesive sol–gel transition hyaluronic acid/pluronic composite hydrogels prepared from bio-inspired catechol-thiol reaction

Soft Matter ◽

10.1039/b919944f ◽

2010 ◽

Vol 6 (5) ◽

pp. 977 ◽

Cited By ~ 254

Author(s):

Yuhan Lee ◽

Hyun Jung Chung ◽

Sangho Yeo ◽

Cheol-Hee Ahn ◽

Haeshin Lee ◽

...

Keyword(s):

Hyaluronic Acid ◽

Sol Gel ◽

Tissue Adhesive ◽

Composite Hydrogels ◽

Sol Gel Transition ◽

Thiol Reaction ◽

Gel Transition

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Mechanical Properties of Epoxy Adhesive Under Thermal Aging and Their Chemical Degradation Behavior

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2021.19424 ◽

2021 ◽

Vol 21 (8) ◽

pp. 4444-4449

Author(s):

Bongjin Chung ◽

Shin Sungchul ◽

Jaeho Shim ◽

Seongwoo Ryu

Keyword(s):

Mechanical Properties ◽

Thermal Aging ◽

Photoelectron Spectroscopy ◽

Thermal Exposure ◽

Chain Scission ◽

Epoxy Adhesive ◽

Chemical Degradation ◽

Adhesive Properties ◽

Noticeable Reduction

Epoxy adhesive was analyzed under long term thermal aging and mechanical properties and chemical degradation were observed by X-ray photoelectron spectroscopy (XPS). Long term thermal exposure of epoxy causes a noticeable reduction in adhesive properties. We developed a predictive model of temperature and time dependent aging. The temperature dependent aging behavior of epoxy adhesive shows good agreement with conventional Arrhenius equations. Using XPS analysis, we also discovered a correlation between chemical degradation and the adhesive properties. Decay of C–C bonding ratio induced chain-scission of epoxy adhesive; increase of total numbers of C–O and C═O induced oxidation of epoxy adhesive during thermal exposure.

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