Results 71 to 80 of about 13,605,822 (324)

Photoacoustic effect as a liquid absorbance detector [PDF]

Applied Optics, 1980
A theoretical treatment of the photoacoustic effect for a liquid enclosed in a cylindrical cell is given. Simple analytical expressions for the photoacoustic signal are derived for cw and pulse modulation schemes. Modulation frequency or pulse width dependence of the photoacoustic signal is discussed.
openaire   +3 more sources

Recent Advances in Collective Behaviors of Micro/Nanomotor Swarms

Advanced Materials, EarlyView.
This review describes the driving forces behind collective motion, explores the self‐organization of micro/nano swarms across zero‐dimensional (0D), one‐dimensional (1D), two‐dimensional (2D), and three‐dimensional (3D) spaces, and highlights their potential in drug delivery, environmental monitoring, and smart devices.
Siwen Sun, Bingbing Sun, Alexander B. Cook, Tania Patiño Padial, Jan C. M. van Hest   +4 more
wiley   +1 more source

In vivo characterization of connective tissue remodeling using infrared photoacoustic spectra [PDF]

, 2018
Premature cervical remodeling is a critical precursor of spontaneous preterm birth, and the remodeling process is characterized by an increase in tissue hydration.
Alisio, Mariana, Altieri, Emma, Anderson, Monica, Barber, Sabrina, Burger, Tracy, Chubiz, Jessica, Diveley, Emily, England, Sarah K, Garcia-Uribe, Alejandro, Goldstein, Naomi, Helm, Kristi, Hu, Peng, Kramer, Christine, Li, Chiye, Ma, Jun, Macones, George A, Maslov, Konstantin, Maynard, Jennifer, McCarthy, Ronald, Meyenburg, Kaytelyn, Meyers, Karen, Muench, Lisa, Onwumere, Oji, Pizzella, Stephanie, Punyamurthy, Nina, Qu, Yuan, Shi, Junhui, Slaughter, Janessia, Stout, Molly J, Tuuli, Methodius, Wang, Lihong V, Zhao, Peinan   +31 more
core   +1 more source

Strategies for Enhancing Thermal Conductivity of PDMS in Electronic Applications

Advanced Materials Technologies, EarlyView.
This review explores effective strategies for enhancing heat dissipation in Polydimethylsiloxane (PDMS)‐based composites, focusing on particle optimization, 3D network design, and multifunctional integration. It offers key insights into cutting‐edge methods and simulations that are advancing thermal management in modern electronic devices.
Xiang Yan, Marisol Martin‐Gonzalez
wiley   +1 more source

Progress and Prospects of Persistent Luminescent Nanocrystals in Biomedical Applications

Advanced Optical Materials, EarlyView.
This review summarizes recent progress in materials‐level control of persistent luminescence, including mechanistic understanding, wavelength/intensity tuning, and activation strategies, as well as emerging biomedical applications in imaging, biosensing, cell tracking, optogenetic stimulation, and biophotochemical activation.
Peng Pei, Luping Wang, Haitong Jing, Xian Qin, Jiong‐Wei Wang, Xiaogang Liu   +5 more
wiley   +1 more source

Potential applications for photoacoustic imaging using functional nanoparticles: A comprehensive overview

Heliyon
This paper presents a comprehensive overview of the potential applications for Photo-Acoustic (PA) imaging employing functional nanoparticles. The exploration begins with an introduction to nanotechnology and nanomaterials, highlighting the advancements ...
Pavan Mohan Neelamraju, Karthikay Gundepudi, Pradyut Kumar Sanki, Kumar Babu Busi, Tapan Kumar Mistri, Sambasivam Sangaraju, Goutam Kumar Dalapati, Krishna Kanta Ghosh, Siddhartha Ghosh, Writoban Basu Ball, Sabyasachi Chakrabortty   +10 more
doaj   +1 more source

Generalized theory of the photoacoustic effect [PDF]

Journal of Applied Physics, 1976
The theory of the photoacoustic effect is extended to include the contribution of mechanical vibration of the sample. Coupled equations for thermal and acoustic waves are solved in both sample and gas. It is shown that the pressure signal in the gas may be significantly affected by acoustic coupling in the sample, and experimental confirmation of this ...
F. A. McDonald, G. C. Wetsel
openaire   +1 more source

Multimodal Actuation and Environment Adaptive Strategies of Bio‐Inspired Micro/Nanorobots in Precision Medicine

Advanced Robotics Research, EarlyView.
An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma, Han Gong, Jiacheng Ouyang, Liqi Chen, Tianfang Kang, Yiran He, Guojun Huang, Sidi Zheng, Ting Yin, Hong Pan, Lintao Cai   +10 more
wiley   +1 more source

Rational Design of Optical Single‐Walled Carbon Nanotube‐Based Nanosensors with Biological Recognition Elements

Advanced Sensor Research, EarlyView.
This Review focuses on assessing and providing perspective on the field of rationally‐designed optical sensors constructed with single‐walled carbon nanotubes. The literature is reviewed and evaluated for SWCNT‐based sensors constructed with biomolecular recognition elements, including proteins, peptides, and oligonucleotides, as well as their methods ...
Amelia K. Ryan, Atara Israel, Maria Celina Stefoni, Catarina Ferraz, Ryan M. Williams   +4 more
wiley   +1 more source

Research on Local Sound Field Control Technology Based on Acoustic Metamaterial Triode Structure

Crystals, 2020
Cell photoacoustic detection faces the problem where the strength of the sound wave signal is so weak that it easily gets interfered by other acoustic signals.
Peng Yang, Jingzhi Wu, Rongrong Zhao, Jianning Han   +3 more
doaj   +1 more source