Review
Nanoscience & Nanotechnology
Domna G. Kotsifaki, Sile Nic Chormaic
Summary: Plasmonic optical tweezers, which use non-invasive optical forces to trap and manipulate particles at the nanoscale, have been crucial for precise particle motion control. This review focuses on the optothermal effects generated by heated plasmonic nanostructures and their applications in optical trapping and particle manipulation. It discusses the current challenges and future opportunities of optothermal mechanisms produced by plasmonic optical tweezers in the field of life sciences.
Article
Engineering, Chemical
R. Harish, R. Sivakumar
Summary: This numerical study investigates the mixed convection flows and heat transfer performance of nanofluids in a cubical enclosure under turbulent conditions. The results show higher temperature and turbulent kinetic energy distributions for opposing flows compared to assisting flows, with an increase in average heat transfer rate observed with a decrease in Richardson number and an increase in volume fraction for both flow types. Additionally, the effects of Brownian motion and thermophoresis are more pronounced in assisting flows.
Article
Engineering, Chemical
Mehrdad Mesgarpour, Somchai Wongwises, Rasool Alizadeh, Hamid Mohammadiun, Mohammad Mohammadiun
Summary: The study compared three different methods for simulating natural convection heat transfer in nanofluids, showing that initial conditions have a significant impact on the accuracy of simulations and parameters like the Rayleigh number. Based on the research, recommendations were made to choose the appropriate simulation method under different Rayleigh number conditions.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Review
Physics, Condensed Matter
Albert Libchaber
Summary: The overall effect of temperature gradients on the Earth's core, surface, and the Sun's surface is discussed. Measurements of scaling properties and distribution of temperature fluctuations using Rayleigh-Benard convection in helium and mercury are presented. A study of a Rayleigh-Benard convection cell with an open top and a floater is conducted, observing a simple limit cycle for the floater position. The accumulation of DNA suspensions and local DNA and RNA accumulation using temperature differences and polyethylene glycol concentration gradients is also examined. Additionally, one of the smallest PCR machines is built using thermal convection.
ANNUAL REVIEW OF CONDENSED MATTER PHYSICS
(2023)
Review
Optics
K. Monisha, K. Suresh, Sajan D. George
Summary: The conversion of light to heat via the photothermal effect has been used to evaluate thermo-optic properties of materials, but recently it has also been used for the manipulation of colloidal objects and living cells. Optothermal manipulation techniques utilize lower optical power and can manipulate particles over a long range compared to conventional optical tweezers. This review discusses the working mechanisms, concepts, and applications of recently established optothermal techniques, as well as the physical mechanisms behind the optical manipulation.
LASER & PHOTONICS REVIEWS
(2023)
Article
Mathematics, Interdisciplinary Applications
Mingwen Chen, Yefan Tian, Weidong Yang, Xuehui Chen
Summary: In this paper, the mixed convective heat transfer mechanism of nanofluids is investigated using a novel Cattaneo-Buongiorno model that incorporates non-local properties, Brownian motion, and thermophoresis diffusion. The finite difference method is employed to numerically solve the highly non-linear equations, and the effectiveness of the numerical method and convergence order are presented. The results show that the fractional parameter delta enhances the energy transfer process of nanofluids, while the fractional parameter gamma has the opposite effect. The effects of Brownian motion and thermophoresis diffusion parameters are also discussed.
FRACTAL AND FRACTIONAL
(2022)
Article
Mathematics
Hossam A. Nabwey, Waqar A. Khan, A. M. Rashad, Fazal Mabood, Taha Salah
Summary: This study investigates the behavior of a power-law nanofluid's mixed bio-convective stagnation point flow approaching a stretchable surface with a passively controlled boundary condition. The study highlights the impact of various parameters on the distribution and transport properties. The findings have significant implications for the engineering application of nanofluids.
Article
Thermodynamics
Jordi Pallares, Alexandre Fabregat
Summary: This study introduces a model for predicting particle deposition velocities on isothermal walls in turbulent natural convection flow at moderate Rayleigh numbers, taking into account various influencing factors. The model is verified by comparisons with Direct Numerical Simulations and experimental measurements reported in the literature.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Chemistry, Multidisciplinary
M. Asif Memon, Dur-e-Shehwar Sagheer, Mushrifah A. S. Al-Malki, Muhammad Sabeel Khan, Shafqat Hussain, Haseeb ur Rehman, Amsalu Fenta
Summary: This article investigates the heat and mass transport properties of MHD Casson nanofluid flow between two horizontal plates, taking into account the Darcy-Forchheimer medium. The effects of a uniform inclined magnetic field are numerically discussed. It is observed that the magnetic field has an inverse relationship with the fluid flow, and the porosity factor and magnetic inclination are inversely related to the surface drag force and Nusselt number.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Physical
Feng Li, Xiaoqing Cai, Gaoxing Jing, Ruijia Huang, Guangjie Song, Dong Wang, Wenwen Chen
Summary: The present study developed a facile method based on the Rayleigh-Benard convection to synthesize hierarchical nanomaterials-hydrogel evaporators. The SnSe-hydrogel evaporator demonstrated a high water-evaporation rate and energy conversion efficiency under one-sun irradiation, and showed excellent mechanical properties and ion-rejection rates during a long-term seawater evaporation test. This research provides a new route for the synthesis of functional nanocomposite hydrogels for solar-powered water purification.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Energy & Fuels
Boris V. Balakin, Mattias Stava, Anna Kosinska
Summary: This article studies the application of aqueous magnetic nanofluid in a direct absorption solar collector, and develops an empirical model of photothermal convection based on experiments, resulting in a maximum thermal efficiency of 65%.
Article
Mathematics, Interdisciplinary Applications
V. Puneeth, S. Manjunatha, J. K. Madhukesh, G. K. Ramesh
Summary: This study investigates the role of mixed convection, Brownian motion, and thermophoresis in the dynamics of Casson hybrid nanofluid, revealing better heat and mass transfer characteristics in linear stretching sheets, an enhancement in fluid flow velocity with the mixed convection parameter, opposite effects in the thermal and concentration fields, and a decrease in flow velocity with an increase in the yield stress due to the rise in the Casson parameter.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Crystallography
Hammad Alotaibi, Khuram Rafique
Summary: The study focuses on analyzing the heat and mass transport phenomenon of micropolar nanofluid flow on a vertical stretching Riga plate, using electromagnetic hydrodynamic behavior. The influences of Brownian motion and thermophoresis on the plate are examined, as well as the micro-rotational effects of particles. Numerical computations show good agreement with earlier studies, with velocity profiles corresponding with modified Hartmann numbers and increased energy and mass flux rates. Concentration distribution decreases with higher Brownian motion values, while temperature distribution increases with higher values of both Brownian motion and thermophoresis, showing a direct relation with thermophoretic impact.
Article
Multidisciplinary Sciences
M. Riaz Khan, V. Puneeth, Aisha M. Alqahtani, Sharifah E. Alhazmi, Sid Ahmed Ould Beinane, Meshal Shutaywi, Sayed M. Eldin, Theyab R. Alsenani
Summary: The primary goal of this article is to investigate radiative stagnation point flow of nanofluid with cross-diffusion and entropy generation on a permeable curved surface. Realistic results are obtained by considering activation energy, Joule heating, slip condition, and viscous dissipation effects. The governing equations are transformed into ordinary differential equations using appropriate transformation variable and numerically solved using the Bvp4c package in MATLAB. The impact of parameters on velocity, temperature, and concentration profiles are examined graphically. The results show that the curvature parameter reduces velocity profile and skin friction coefficient, while the magnetic parameter, temperature difference parameter, and radiation parameter intensify entropy generation.
SCIENTIFIC REPORTS
(2023)
Article
Thermodynamics
Ammar Alsabery, Mohammad Vaezi, Tahar Tayebi, Ishak Hashim, Mohammad Ghalambaz, Ali J. Chamkha
Summary: This study investigates mixed convection of nanofluid within a wavy lid-driven enclosure with a prominent heat source. A two-phase method is used for the nanoliquid, resulting in a non-homogeneous concentration field. The governing equations are solved using the finite element technique. The study examines the effects of adding nanoparticles, wave number and amplitude of the wavy walls, and the aspect ratio of the heat source on heat transfer rate.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Chemistry, Analytical
Li-Hsien Yu, Yih-Fan Chen
ANALYTICAL CHEMISTRY
(2015)
Article
Biophysics
Ding-Zheng Lin, Po-Chun Chuang, Pei-Chen Liao, Jung-Po Chen, Yih-Fan Chen
BIOSENSORS & BIOELECTRONICS
(2016)
Article
Chemistry, Analytical
Jen-Kuang Lee, I-Shun Wang, Chi-Hsien Huang, Yih-Fan Chen, Nien-Tsu Huang, Chih-Ting Lin
Article
Biochemistry & Molecular Biology
J. N. Milstein, Y. F. Chen, J. -C. Meiners
Review
Biochemical Research Methods
David Erickson, Xavier Serey, Yih-Fan Chen, Sudeep Mandal
Article
Chemistry, Multidisciplinary
Pilgyu Kang, Xavier Serey, Yih-Fan Chen, David Erickson
Article
Chemistry, Multidisciplinary
Yih-Fan Chen, Xavier Serey, Rupa Sarkar, Peng Chen, David Erickson
Article
Chemistry, Multidisciplinary
Yih-Fan Chen, Li Jiang, Matthew Mancuso, Aadhar Jain, Vlad Oncescu, David Erickson
Article
Physics, Multidisciplinary
Yih-Fan Chen, J. N. Milstein, Jens-Christian Meiners
PHYSICAL REVIEW LETTERS
(2010)
Article
Physics, Multidisciplinary
Xavier Serey, Sudeep Mandal, Yih-Fan Chen, David Erickson
PHYSICAL REVIEW LETTERS
(2012)
Article
Multidisciplinary Sciences
Li-An Wu, Wei-En Li, Ding-Zheng Lin, Yih-Fan Chen
SCIENTIFIC REPORTS
(2017)
Article
Chemistry, Analytical
Yun-Chu Chen, Jing-Jie Chen, Yang-Jyun Hsiao, Cheng-Zhe Xie, Chien-Chung Peng, Yi-Chung Tung, Yih-Fan Chen
Summary: This study developed a low-cost and easy-to-fabricate hydrogel-based LSPR substrate for sensitive, consistent, specific, and time-lapse detection of H2O2 in cell culture medium. Using this substrate, it was possible to detect H2O2 concentrations as low as 0.5 μM within 30 minutes with good reproducibility. The HRP-catalyzed LSPR biosensing showed good selectivity for H2O2 detection and potential for various in vitro cell studies.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Yun-Chu Chen, Shang-Wen Hong, Huang-Hesin Wu, Yuh-Lin Wang, Yih-Fan Chen
Summary: A method based on SERS technology and sample pretreatment process enables rapid, sensitive, reproducible, multiplexed, and low-cost detection of illegal drugs in urine. By inducing AgNPs to form Ag nanoclusters with sodium bromide, the detection sensitivity of NPS is greatly improved, allowing for simultaneous detection of multiple drugs.
Article
Nanoscience & Nanotechnology
Cheng-Zhe Xie, Cheng-Han Li, You-Chia Chang, Yih-Fan Chen
Summary: This paper introduces a gel-based 3D substrate for enhanced SERS detection by utilizing photonic nanojets (PNJs). The porous structure of the gel-based substrate allows small molecules to diffuse, while silica beads on the surface generate PNJs during SERS measurements. By coating the substrate with a close-packed array of silica beads, multiple PNJs can be generated, resulting in significantly enhanced Raman signals and improved detection sensitivity. This enhancement scheme can be applied to achieve high-sensitivity SERS detection for various molecules in diverse applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)