Results 51 to 60 of about 6,572 (227)

Stability of Medicinal Nanoemulsions to Spaceflight: Insights From the StarMed Experiment

Advanced Healthcare Materials, EarlyView.
Chitosan‐coated melatonin nanoemulsions (MN) recovered from a sounding rocket mission preserve droplet size and controlled‐release behavior, whereas uncoated nanoemulsions show ageing‐driven droplet growth and increased accessible drug fraction. Simple polymer coatings thus enhance the flight resilience of liquid space medicines under cumulative launch
Modupe Adebowale, Nguyen Van Duc Long, Philip M. Williams, Jens Hauslage, Volker Hessel   +4 more
wiley   +1 more source

Bandgap‐Dependent Band‐to‐Band Tunneling in Carbon Nanotube Transistors

Advanced Materials Interfaces, EarlyView.
We systematically investigate bandgap‐dependent BTBT in SWCNT transistors by comparing wide‐bandgap (6,5) (Eg≈1.13 eV), medium‐bandgap HiPco, and narrow‐bandgap Arc‐discharge (Eg≈0.59 eV) SWCNT networks. The narrow‐bandgap networks show stronger BTBT, higher off‐state leakage, and lower on/off ratio, while wide‐bandgap (6,5) devices suppress BTBT and ...
Yuxiang Wei, Yimin Lei, Peixian Li, Hong Wang, Meisen Yi, Qing Zhu, Jiejie Zhu, Zhen Zhang, Yang Yang, Xiaohua Ma, Yue Hao   +10 more
wiley   +1 more source

Natural fiber reinforced polymer composites for ballistic protection: Design, performance, and challenges

Results in Materials
The increasing demand for sustainable and lightweight materials in defense and security applications has driven the development of natural fiber-reinforced polymer composites (NFRPCs) for ballistic protection.
Md. Syduzzaman, Salman Enayet Chowdhury, Nadvi Mamun Pritha, Abir Hassan, Sajid Hossain   +4 more
doaj   +1 more source

Deep‐Tissue Light Generation via Whispering Gallery Mode Lasing From a Commercial Nylon Fiber for Biomedical Applications

Advanced Materials Technologies, EarlyView.
A dyed nylon fiber is implemented inside the scattering phantom and skin tissue. The deep‐tissue light generation via whispering gallery mode lasing is demonstrated, achieving a depth of >50 times transport mean free path in scattering phantom and 3 mm beneath skin.
Dongqin Ni, Florian Klämpfl, Fernando Lahoz, Michael Schmidt, Martin Hohmann   +4 more
wiley   +1 more source

Experimental study of bullet-proofing capabilities of Kevlar, of different weights and number of layers, with 9 mm projectiles

Defence Technology, 2019
Kevlar is the most commonly used material as armour for protection against bullets used in hand guns because of its impact resistance, high strength and low weight.
Riaan Stopforth, Sarp Adali
doaj   +1 more source

Ultrasound‐Actuated Gene Editing in Human Kidney Organoids

Advanced Science, EarlyView.
Peptide‐stabilized nanoemulsions enable spatially controlled, ultrasound‐triggered delivery of gene‐editing proteins deep within human kidney organoid tissues. Focused acoustic pulses drive droplet vaporization, propelling cargo into target renal cells while preserving native tissue microarchitecture. This non‐viral platform improves both the depth and
Michael A. Miller, Nicole Vo, Utkarsh, Ivan Sokirniy, Justin Pritchard, Benjamin S. Freedman, Scott H. Medina   +6 more
wiley   +1 more source

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

Advanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Antiballistic material, testing, and procedures of curved-layered objects: A systematic review and current milestone

Curved and Layered Structures, 2023
Antiballistics are used as personal protective equipment required by military and police personnel. They have been mentioned frequently in recent decades due to the increasing cases of war.
Maulana Fattah, Prabowo Aditya Rio, Ridwan Ridwan, Ubaidillah Ubaidillah, Ariawan Dody, Sohn Jung Min, Muhayat Nurul, Tjahjana Dominicus Danardono Dwi Prija, Do Quang Thang   +8 more
doaj   +1 more source

A Human Lower Limb Mechanical Phantom for the Testing of Knee Exoskeletons

IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2023
The development of assistive lower-limb exoskeletons can be time-consuming. Testing prototype medical devices on vulnerable populations such as children also has safety concerns.
W. Sebastian Barrutia, James Bratt, Daniel P. Ferris   +2 more
doaj   +1 more source

Bridged h‐BN Nanosheets Coatings: Simultaneous Shielding Atomic‐Oxygen Irradiation and Achieving Superior Friction Performance

Advanced Science, EarlyView.
ABSTRACT To confront extreme space environments, a combination of inorganic and organic coatings can provide a pathway for offering highly durable radiation resistance and anti‐friction simultaneously. Herein, a strong interfacial 3D hydrogen‐bonding network is designed to create robust hexagonal boron nitride (h‐BN) based polymer coatings with ...
Zhuoyi Li, Changning Bai, Xingkai Zhang, Yusheng Liang, Wei Wu, Dingrui Zhou, Tao Du, Chunjin Wang   +7 more
wiley   +1 more source