Results 71 to 80 of about 547 (170)

Transformation Elastodynamics and Active Exterior Acoustic Cloaking [PDF]

, 2013
This chapter consists of three parts. In the first part we recall the elastodynamic equations under coordinate transformations. The idea is to use coordinate transformations to manipulate waves propagating in an elastic material. Then we study the effect of transformations on a mass-spring network model.
Vasquez, Fernando Guevara, Milton, Graeme W., Onofrei, Daniel, Seppecher, Pierre   +3 more
openaire   +2 more sources

Delivering Proteins and Enzymes to Solid Tumors Through the Development of Stimuli‐Responsive Nanocarriers

ChemNanoMat, Volume 12, Issue 6, June 2026.
Stimuli‐responsive strategies to achieve controlled release of protein‐based therapeutic agents into solid tumors. Proteins, enzymes, and peptides have long been recognized as valuable therapeutic agents, particularly in oncology. However, their complex chemical structures render them more sensitive than smaller chemotherapeutic drugs.
Guillermo Plaza‐Palomo, Diana Benita‐Donadios, Sandra Jiménez‐Falcao, Alejandro Baeza   +3 more
wiley   +1 more source

Two-Dimensional Pentamode Metamaterials: Properties, Manufacturing, and Applications

Crystals
Metamaterials are artificial materials with properties depending mainly on their designed structures instead of their materials. Pentamode metamaterials are one type of metamaterial.
Chuang Zhou, Qi Li, Xiaomei Sun, Zifei Xiao, Haichao Yuan   +4 more
doaj   +1 more source

Nanorobotic platforms for targeted drug delivery: Materials engineering, functional dynamics, and biomedical translation

Clinical and Translational Discovery, Volume 6, Issue 3, June 2026.
Graphical representation of nanorobotic platforms for targeted drug delivery. Abstract Background Nanorobotic systems represent an emerging and disruptive paradigm in nanomedicine for precision drug delivery, controlled therapeutic release, and minimally invasive biomedical interventions.
Mohd Shoab Ali, Garima Gupta, Khang Wen Goh, Rahul Shukla, Amirhossein Sahebkar, Prashant Kesharwani   +5 more
wiley   +1 more source

Topology optimization of acoustic metamaterials with negative mass density using a level set-based method

Mechanical Engineering Journal, 2014
Much effort has been made to experimentally fabricate acoustic metamaterials that display novel properties, such as single or double negativity, negative refractive index.
Lirong LU, Masaki OTOMORI, Takayuki YAMADA, Takashi YAMAMOTO, Kazuhiro IZUI, Shinji NISHIWAKI   +5 more
doaj   +1 more source

Metal‐dependent regulated cell death: Molecular architecture and translational frontiers

iMeta, Volume 5, Issue 3, June 2026.
Intracellular metal dyshomeostasis orchestrates distinct regulated cell death programs, including iron‐driven ferroptosis, copper‐mediated cuproptosis, calcicoptosis, newly designated zincoptosis, mnoptosis, and coptosis. This review systematically delineates their molecular architectures—spanning from Sorafenib‐induced lipid peroxidation and ...
Haoliang Hu, Zhe Chen, Yaqi Li, Jiayi Peng, Jiangang Cao, Hong Zhou, Mengqi Wang, Yuejia Du, Hailin Wu, Huiqin Zhao, Shifang Huang, Dianmei Yu, Meiqing Liu, Olga V. Shevchenko, Natalia Yu. Matveeva, Yiyuan Yang, Kerui Huang, Deguan Lv, Junxia Min, Linxi Chen, Fudi Wang   +20 more
wiley   +1 more source

Loss Compensation and Coherent Virtual Absorption via Virtual Complex Frequency Wave Excitation

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
By establishing a mathematical bridge between real and complex frequencies, we present a general method for complex frequency wave excitation to obtain all electromagnetic responses at complex frequencies. Using properties of complex frequency waves, we compensate for the propagating loss of point sources and surface plasmon polaritons.
Sheng Zhang, Zhi Hong Hang
wiley   +1 more source

Acoustic predation in a sailfish-flying fish cloak

Scientific Reports, 2023
AbstractWhen a sailfish circles to corral a school of flying fish in a vortex near the ocean surface, a tiny patch of arced surface waves confined to oppositely placed 70° sectors appears dispersing coherently, but why? It is modeled that, when the fish motions stop suddenly, the corralled school compacts, the tail shed propulsion vortices touch, break
openaire   +3 more sources

Phononic band-gaps of Hoberman spherical metamaterials in low frequencies

Materials & Design, 2019
Periodically engineered structures, having the capability to manipulate mechanical wave propagation and exhibiting omnidirectional phononic band gaps, are important for various potential applications such as wave filtering, waveguiding, acoustic cloaking,
Yangbo Li, Siyu Cao, Yan Shen, Yongdong Meng   +3 more
doaj   +1 more source

Spider web-structured labyrinthine acoustic metamaterials for low-frequency sound control

New Journal of Physics, 2017
Attenuating low-frequency sound remains a challenge, despite many advances in this field. Recently-developed acoustic metamaterials are characterized by unusual wave manipulation abilities that make them ideal candidates for efficient subwavelength sound
A O Krushynska, F Bosia, M Miniaci, N M Pugno   +3 more
doaj   +1 more source