Results 91 to 100 of about 3,615 (219)

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

The influence of tantalum on human cell lineages important for healing in soft-tissue reattachment surgery: an in-vitro analysis

Journal of Experimental Orthopaedics, 2019
Background Porous tantalum is currently used in orthopaedic surgery for a variety of indications including soft tissue re-attachment. However, the clinical results have been variable and a previous laboratory study has suggested that tantalum may ...
Edward C. A. Gee, Renato Eleotério, Laura M. Bowker, Adnan Saithna, John A. Hunt   +4 more
doaj   +1 more source

Recent Advances in Bimetallic Site Catalysts for Photocatalytic Ammonia Synthesis: Synergistic Effects and Design Strategies

Small, EarlyView.
Photocatalytic ammonia synthesis employs photocatalysts to harness solar energy, driving the reduction of N2 into NH3. The synergistic effects of bimetallic active sites are used to overcome limitations of single‐metal systems and optimize electronic structures.
Haibo Guo, Liying Wang, Jingjing Wang, Zhenzhu Cao, Yongfeng Zhang, Ziwei Tong, Zhongchao Bai, Nana Wang   +7 more
wiley   +1 more source

Interest of Tantalum for Arthrodesis-Reconstruction of TAR Revision

Foot & Ankle Orthopaedics, 2016
Category: Ankle Arthritis Introduction/Purpose: Ten-year Total Ankle Replacement (TAR) survivorship improved from 80 to 90%. But periprosthetic osteolysis associated with implant subsidence remains the main problem, with difficult revision surgery by ...
Jean-Luc Besse MD, PhD, Syvain Aubret, Marie-Caroline Lomberget-Daubie, Michel-Henry Fessy   +3 more
doaj   +1 more source

Engineering Nanoscale Frontiers: Valve Metal Oxide Nanostructures From Fundamentals to Multifunctional Biomedical Applications

The Chemical Record, EarlyView.
Valve metal oxide nanostructures such as TiO2, Ta2O5, Nb2O5, ZrO2, and HfO2 are emerging as versatile biomedical platforms due to their tunable surface properties, exceptional stability, and inherent biocompatibility. This review highlights their synthesis, physicochemical properties, and biological interactions, addressing their roles in advanced ...
Nina Kummer, Désirée Gül, İdris Sargin, Mustafa Dolaz, Dzmitry Shcharbin, Shirley K. Knauer, Burcu Önal Acet, Emrah Dikici, Mingyuan Gao, Mehmet Odabaşı, Ömür Acet, Roland H. Stauber   +11 more
wiley   +1 more source

Nonthermal plasma approaches for combating implant‐associated infections: A compendious review

VIEW, EarlyView.
Implant‐associated infections pose serious clinical challenges. Non‐thermal plasma (NTP) modifications overcome this bottleneck in distinct ways relative to traditional sterilization methods. Gas‐phase plasmas generate highly energetic species, UV radiation and reactive oxygen/nitrogen species (RONS), which alter the implant surface properties.
A. M. Trimukhe, Satish Rojekar, Amol Gholap, K. Navaneetha Pandiyaraj, Mukesh Patekar, Claudia Riccardi, R. R. Deshmukh, Tomáš Kovářík, Kalim Deshmukh   +8 more
wiley   +1 more source

Research progress on the osteogenic properties of tantalum in the field of medical implant materials

Journal of Materials Research and Technology
Ideal medical implant materials should have the qualities of osteoinduction, osteoconduction, nontoxicity, non-sensitivity and non-carcinogenicity to the body.
Xi Wang, Wentao Liu, Chundong Jiang, Peng Pan, Tiantian Chen, Xinwen Zhang, Xu Yan   +6 more
doaj   +1 more source

XPS and GDOES Characterization of Porous Coating Enriched with Copper and Calcium Obtained on Tantalum via Plasma Electrolytic Oxidation

Journal of Spectroscopy, 2016
XPS and GDOES characterizations of porous coatings on tantalum after Plasma Electrolytic Oxidation (PEO) at 450 V for 3 minutes in electrolyte containing concentrated (85%) phosphoric acid with calcium nitrate and copper (II) nitrate are described. Based
Krzysztof Rokosz, Tadeusz Hryniewicz, Patrick Chapon, Steinar Raaen, Hugo Ricardo Zschommler Sandim   +4 more
doaj   +1 more source

Recent progress on the development of hydrogel‐based microneedles for transdermal drug delivery

VIEW, EarlyView.
This study provides a comprehensive and up‐to‐date analysis of recent progress in HMN technology, covering fundamental transdermal delivery mechanisms and design principles, biomaterials used in HMN fabrication, drug loading and release strategies, and emerging therapeutic applications.
Mohammad Muhtasim Ittisaf, Salman Farsi Taharat, Md. Sadek Miah, Hasan Tasnim Salehin, M. Azam Ali, Shoeb Ahmed   +5 more
wiley   +1 more source

Review Article: Treatments for Bone Loss in Revision Total Knee Arthroplasty

Journal of Orthopaedic Surgery, 2012
Bone deficiency hinders implant alignment and stabilisation of the bone-implant interface in revision total knee arthroplasty (TKA). Treatments for bone defects include bone cement, bone cement with screw reinforcement, metal augments, impaction bone ...
Yi Yan Qiu, Chun Hoi Yan, Kwong Yuen Chiu, Fu Yuen Ng   +3 more
doaj   +1 more source