Polyurethane/silk fibroin-based electrospun membranes for wound healing and skin substitute applications

• Iqra Zainab,
• Zohra Naseem,
• Syeda Rubab Batool,
• Muhammad Waqas,
• Ahsan Nazir and
• Muhammad Anwaar Nazeer

Beilstein J. Nanotechnol. 2025, 16, 591–612, doi:10.3762/bjnano.16.46

• new class of PUs known as “biostable” [134]. Wheatley et al. reported that sheep with a non-biostable PU mitral heart valve prosthesis survived for up to six months. However, issues such as surface degradation and accumulation of calcified fibrin/thrombus compromised leaflet mobility and hydrodynamic

• performance of artificial heart valve prostheses [135]. Several studies focused on creating novel PU compounds with constituents that are less susceptible to oxidative breakdown after realizing the necessity of PU with improved biostability after long-term implantation, especially regarding the soft grades

Interface properties of nanostructured carbon-coated biological implants: an overview

• Mattia Bartoli,
• Francesca Cardano,
• Erik Piatti,
• Stefania Lettieri,
• Andrea Fin and
• Alberto Tagliaferro

Beilstein J. Nanotechnol. 2024, 15, 1041–1053, doi:10.3762/bjnano.15.85

• PVD, CVD, and sol–gel deposition of NDs on ceramics, together with excellent adhesion of the protective layer [143][144]. Chernysheva et al. [145][146] investigated the production of protective ND layers onto a xenogenic heart valve, evaluating the role of the ND surface potential. A negative surface

• other carbon-rich parts of a heart valve implant, suppressing thrombin generation from platelets as reported by Zeng and co-workers [148]. ND coatings are also able to boost the integration of implants with tissue as reported by Zalieckas and co-workers [149]. The authors coated a titanium alloy with

The surface microstructure of cusps and leaflets in rabbit and mouse heart valves

• Xia Ye,
• Bharat Bhushan,
• Ming Zhou and
• Weining Lei

Beilstein J. Nanotechnol. 2014, 5, 622–629, doi:10.3762/bjnano.5.73

• Photonics Fabrication, Jiangsu University, Zhenjiang Jiangsu 212013, China 10.3762/bjnano.5.73 Abstract In this investigation, scanning electron microscopy was used to characterize the microstructure on the surfaces of animal heart valve cusps/leaflets. The results showed that though these surfaces appear

• fabrication of valve substitutes or partial substitutes. Namely, the model may help ameliorate heart valve replacement surgery. Keywords: contact angle; geometric parameter; heart valve; hemocompatibility; microstructure; Introduction Bionics, or biomimetics, have made tremendous developments in the past

• ventricles, between the aorta and the left ventricle, and between the pulmonary artery and the right ventricle. These valves play a key role by forcing blood to flow in one direction through the heart and all blood vessels throughout the body. If valvular lesions occur a heart valve will need to be replaced