Results 81 to 90 of about 6,061 (211)

Speed control with low armature loss for very small sensorless brushed DC motors [PDF]

, 2009
A method for speed control of brushed dc motors is presented. It is particularly applicable to motors with armatures of less than 1 cm3. Motors with very small armatures are difficult to control using the usual pulsewidth-modulation (PWM) approach and ...
McLeish, J., Round, W. Howell, Scott, Jonathan B.   +2 more
core   +2 more sources

SERS‐Based Nano‐ and Microsystems Toward Biomedical Applications

Small, EarlyView.
This review provides a current overview of nano‐ and microscale SERS‐based devices, encompassing all aspects from material design to practical applications. We highlight controlled SERS‐active architectures, including patterned substrates, nanorods, microspheres, micromotors, and microneedles, as well as combinations of these microfluidic systems.
Gohar Soufi, Tijana Maric, Isidro Badillo‐Ramírez, Juliane Fjelrad Christfort, Matteo Tollemeto, Carmen Milan Guimera, Casper Nisula, Giulia Zappalá, Laura De Vittorio, Marta Rubio‐Huertas, Sungyeong Kim, Ziqiao Li, Morten Bo Søndergaard Svendsen, Zhongyang Zhang, Anja Boisen   +14 more
wiley   +1 more source

Synthetic micro/nanomotors in drug delivery [PDF]

, 2014
Nanomachines offer considerable promise for the treatment of diseases. The ability of man-made nanomotors to rapidly deliver therapeutic payloads to their target destination represents a novel nanomedicine approach.
Gao, Wei, Wang, Joseph
core  

Multigear Bubble Propulsion of Transient Micromotors

Research, 2020
Transient, chemically powered micromotors are promising biocompatible engines for microrobots. We propose a framework to investigate in detail the dynamics and the underlying mechanisms of bubble propulsion for transient chemically powered micromotors ...
Amir Nourhani, Emil Karshalev, Fernando Soto, Joseph Wang   +3 more
doaj   +1 more source

Activatable smart contrast agents for photoacoustic imaging

Smart Molecules, EarlyView.
This review highlights recent advances in smart activatable photoacoustic imaging (PAI) contrast agents, which dynamically modulate their optical properties in response to external stimuli or microenvironmental cues. It discusses their molecular design, activation mechanisms, biomedical applications, and future prospects for clinically tailored use ...
Donghyeon Oh, Jihye Lee, Suyoung Park, Juyoung Yoon, Won Jong Kim, Chulhong Kim   +5 more
wiley   +1 more source

Highly Efficient Light-Driven TiO_2–Au Janus Micromotors [PDF]

, 2016
A highly efficient light-driven photocatalytic TiO_2–Au Janus micromotor with wireless steering and velocity control is described. Unlike chemically propelled micromotors which commonly require the addition of surfactants or toxic chemical fuels, the ...
Dong, Renfeng, Gao, Wei, Pei, Allen, Ren, Biye, Zhang, Qilu   +4 more
core  

Training Program for the Use of Magnification Loupes in Dentistry

European Journal of Dental Education, EarlyView.
ABSTRACT Introduction Although magnification loupes offer well‐documented advantages, their initial adaptation can be challenging, often deterring widespread adoption. Without sufficient training during this critical period, students may feel inadequately prepared, limiting their ability to benefit from loupes and contributing to reluctance in their ...
Júlia Margato Pazos, Jessica Katarine de Abreu Silva, Patricia Petromilli Nordi Sasso Garcia   +2 more
wiley   +1 more source

Fatigue behaviour of root filled teeth: The role of endodontic sealers and restorative techniques

European Journal of Oral Sciences, EarlyView.
Abstract This in vitro study aimed to evaluate the fatigue behaviour of root canal treated teeth, filled with either AH Plus Jet (AHP) or AH Plus Bioceramic Sealer (AHPB) and rehabilitated with either mesio‐occlusal‐distal (MOD) restorations (direct resin composite) or endocrowns (indirect resin composite).
Andressa Weber Vargas, Rafaela Oliveira Pilecco, Pablo Machado Soares, Êmile de Moraes, Gabriel Kalil Rocha Pereira, Renata Dornelles Morgental   +5 more
wiley   +1 more source

Cilia in Nervous System Development, Function, and Disease

MedComm – Future Medicine, Volume 5, Issue 2, June 2026.
Cilia are evolutionarily conserved organelles that function as essential sensory and motility platforms in the nervous system. This review outlines key cilia‐dependent signaling pathways and their roles in neural development and function. Furthermore, it highlights how ciliary dysfunction can lead to a variety of neurological disorders, known as ...
Qingchao Li, Anqi Zhang, Ting Song
wiley   +1 more source

Towards a micropositioning system for targeted drug delivery in wireless capsule endoscopy

, 2011
This paper describes a novel micropositioning mechanism for achieving 1ml of targeted drug delivery within wireless capsule endoscopes. The mechanism allows a needle to be positioned within a 22.5° segment of a cylindrical capsule and be extendible by up
Constandinou, TG, Woods, SP
core   +1 more source