Results 81 to 90 of about 38,961 (266)

Aging damage characteristics of acid‐etched sandstone samples

Energy Science & Engineering
To investigate the erosive damage effect of the acidic solution on sandstone, experiments were conducted to examine the macro‐ and micro‐characteristics of sandstone samples under different acid etching times.
Aohan Zhao, Yankun Ma, Tong Zhang, Xi Zhang   +3 more
doaj   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Preparation of high-quality pure titanium SLA surface and evaluation of its physicochemical and biological properties - in vitro experiments

BMC Oral Health
Objectives This study aimed to prepare high-quality sandblasted large-grit acid-etched surfaces of pure titanium and to evaluate their physicochemical and biological properties.
Qiqi Liu, Yujia Zhao, Junjiang Hao, Lin Qiu, Hanqi Su, Xinyu Wang, Yucheng Su   +6 more
doaj   +1 more source

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

Advanced Materials, EarlyView.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang, Byeongseok Ryu, Sujeong Ahn, Junhyub Kim, Myeonghun Jang, Jeong Ho Cho, Won‐Gun Koh, Hyungsuk Lee   +7 more
wiley   +1 more source

Ion‐Reconfigurable “N”‐Shaped Antiambipolar Behavior in Organic Electrochemical Transistors

Advanced Materials, EarlyView.
A unique N‐shaped negative differential transconductance (NDT) characteristics is demonstrated in single‐polymer organic electrochemical transistors through a sequential doping–redox–doping process driven by iodide ions. This redox‐driven mechanism enables low‐voltage, ion‐controlled reconfigurability and tunable current modulation, allowing seamless ...
Debdatta Panigrahi, Daniele Zucchelli, Zeinab Hamid, Christina Kousseff, Arup Sarkar, Aristea Pavlou, Zhitian Ling, Somayeh Kashani, Iain McCulloch, Paul W. M. Blom, Fabrizio Torricelli, Paschalis Gkoupidenis   +11 more
wiley   +1 more source

Effects of a non-rinse conditioner on the enamel of primary teeth

Brazilian Dental Journal, 2003
The aim of this in vitro study was to evaluate by scanning electron microscopy the morphological aspects of the enamel of primary teeth after etching with 36% phosphoric acid or a non-rinse conditioner.
Fava Marcelo, Myaki Silvio Issáo, Arana-Chavez Victor Elias, Fava-de-Moraes Flavio   +3 more
doaj  

In vitro Shear Bond Strength of Orthodontic Brackets with Different Etching Techniques

Journal of Pharmacy and Bioallied Sciences
Objective: To evaluate and compare the shear bond strength of orthodontic brackets bonded to permanent teeth using three different etching techniques. Materials and Methods: 30 extracted premolar teeth were divided and treated with various etching agents:
MD Imran, Arpita H. Jariwala, Vijayadhith Chinnappa, Jose Sunny, N Lingeshkumar, Shabeel Ahamad   +5 more
doaj   +1 more source

Ultrafast Vertical Organic Electrochemical Transistors With Ion‐Permeable Conductive Polymer Top Electrodes

Advanced Materials, EarlyView.
Vertical organic electrochemical transistors (vOECTs) are limited in speed by ion‐impermeable metal electrodes that slow ion injection. Using ion‐permeable PBFDO top electrodes allows direct vertical ion injection into BBL channels, achieving high current densities (>400 A cm−2), large on/off ratios (>106), and ultrafast switching in 28 µs. This sets a
Han‐Yan Wu, Yingxue An, Luigi Fabiano, Qifan Li, Qingqing Wang, Feng Zhang, Wenlong Jin, Miao Xiong, Junpeng Ji, Ugo Bruno, Grzegorz Greczynski, Grazia Maria Lucia Messina, Xianjie Liu, Chi‐Yuan Yang, Simone Fabiano   +14 more
wiley   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Comparative Evaluation of a Light-Cure Adhesion Booster on Shear Bond Strength Using Four Enamel Conditioning Techniques: An In Vitro Study

Journal of Pharmacy and Bioallied Sciences
Background: Effective bonding of orthodontic brackets is a critical factor for treatment success. Although acid etching with phosphoric acid is the gold standard, it may result in enamel loss and soft tissue irritation.
Polisetty Siva Krishna, Sampath Krishna Veni, K Jashva Vamsi, B. Rama Mohan Reddy, Gowri Sankar Singaraju, Prasad Mandava   +5 more
doaj   +1 more source