1
|
Kim M, Kubelick KP, Yu AM, VanderLaan D, Jhunjhunwala A, Nikolai RJ, Cadena M, Kim J, Emelianov SY. Regulating interparticle proximity in plasmonic nanosphere aggregates to enhance photoacoustic response and photothermal stability. ADVANCED FUNCTIONAL MATERIALS 2024; 34:2313963. [PMID: 39021614 PMCID: PMC11250694 DOI: 10.1002/adfm.202313963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Indexed: 07/20/2024]
Abstract
Designing plasmonic nanoparticles for biomedical photoacoustic (PA) imaging involves tailoring material properties at the nanometer scale. A key in developing plasmonic PA contrast nanoagents is to engineer their enhanced optical responses in the near-infrared wavelength range, as well as heat transfer properties and photostability. This study introduces anisotropic plasmonic nanosphere aggregates with close interparticle proximity as photostable and efficient contrast agent for PA imaging. Silver (Ag), among plasmonic metals, is particularly attractive due to its strongest optical response and highest heat conductivity. Our results demonstrate that close interparticle proximity in silver nanoaggregates (AgNAs), spatially confined within a polymer shell layer, leads to blackbody-like optical absorption, resulting in robust PA signals through efficient pulsed heat generation and transfer. Additionally, our AgNAs exhibit a high photodamage threshold highlighting their potential to outperform conventional plasmonic contrast agents for high-contrast PA imaging over multiple imaging sessions. Furthermore, we demonstrate the capability of the AgNAs for molecular PA cancer imaging in vivo by incorporating a tumor-targeting peptide moiety.
Collapse
Affiliation(s)
- Myeongsoo Kim
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA 30332, USA
- Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Kelsey P. Kubelick
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA 30332, USA
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Anthony M. Yu
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA 30332, USA
| | - Don VanderLaan
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA 30332, USA
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Anamik Jhunjhunwala
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA 30332, USA
| | - Robert J. Nikolai
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA 30332, USA
| | - Melissa Cadena
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA 30332, USA
| | - Jinhwan Kim
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA 30332, USA
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
- The current affiliation of the author is the Department of Surgery, School of Medicine, University of California Davis, Sacramento, CA 95817, USA and the Department of Biomedical Engineering, University of California Davis, Davis, CA 95616, USA
| | - Stanislav Y. Emelianov
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA 30332, USA
- Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| |
Collapse
|
2
|
Samolis PD, Sander MY. Increasing contrast in water-embedded particles via time-gated mid-infrared photothermal microscopy. OPTICS LETTERS 2024; 49:1457-1460. [PMID: 38489424 DOI: 10.1364/ol.513742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 02/06/2024] [Indexed: 03/17/2024]
Abstract
The transient dynamics of photothermal signals provide interesting insights into material properties and heat diffusion. In a mid-infrared (mid-IR) photothermal microscope, the imaging contrast in a standard amplitude imaging can decrease due to thermal diffusion effects. It is shown that contrast varies for poly-methyl 2-methylpropenoate (PMMA) particles of different sizes when embedded in an absorbing medium of water (H2O) based on levels of heat exchange under the water absorption resonance. Using time-resolved boxcar (BC) detection, analysis of the transient thermal dynamics at the bead-water interface is presented, and the time decay parameters for 500 nm and 100 nm beads are determined. Enhanced (negative) imaging contrast is observed for less heat exchange between the water and bead, as in the case for the 100 nm bead. For the 500 nm bead, boxcar imaging before heat exchange starts occurring, leads to an increase of the imaging contrast up to a factor of 1.6.
Collapse
|
3
|
Gutiérrez-Varela O, Lombard J, Biben T, Santamaria R, Merabia S. Vapor Nanobubbles around Heated Nanoparticles: Wetting Dependence of the Local Fluid Thermodynamics and Kinetics of Nucleation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:18263-18275. [PMID: 38061075 DOI: 10.1021/acs.langmuir.3c02096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Plasmonic nanobubbles are composite objects resulting from the interaction between light and metallic nanoparticles immersed in a fluid. Plasmonic nanobubbles have applications in photothermal therapies, drug delivery, microfluidic manipulations, and solar energy conversion. Their early formation is, however, barely characterized due to the short time and length scales relevant to the process. Here, we investigate, using molecular dynamics (MD) simulations, the effect of nanoparticle wettability on both the local fluid thermodynamics and the kinetics of nanobubble generation in water. We first show that the local onset temperature of vapor nucleation decreases with the nanoparticle/water interfacial energy and may be 100 K below the water spinodal temperature in the case of weak nanoparticle/water interactions. Second, we demonstrate that vapor nucleation may be slower in the case of weak water/nanoparticle interactions. This result, which is qualitatively at odds with the predictions of isothermal classical nucleation theory, may be explained by the competition between two antagonist effects: while, classically, hydrophobicity increases the vapor nucleation rate, it also penalizes interfacial thermal transfer, slowing down kinetics. The kinetics of heat transfer from the nanoparticle to water is controlled by the interfacial thermal conductance. This quantity turns out not only to decrease with the nanoparticle hydrophobicity but also drops down prior to phase change, yielding even longer nucleation times. Such conclusions were reached by considering the comparison between MD and continuous heat transfer models. These results put forward the role of nanoparticle wettability in the generation of plasmonic nanobubbles observed experimentally and open the path to the control of boiling using nanopatterned surfaces.
Collapse
Affiliation(s)
- Oscar Gutiérrez-Varela
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de México 4510, Mexico
- Université Claude Bernard Lyon 1, Villeurbanne F-69622, France
| | - Julien Lombard
- Departamento de Física y Química Teórica and Departamento de Matemáticas, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 4510, Mexico
| | - Thierry Biben
- Université Claude Bernard Lyon 1, Villeurbanne F-69622, France
| | - Ruben Santamaria
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de México 4510, Mexico
| | - Samy Merabia
- Université Claude Bernard Lyon 1, Villeurbanne F-69622, France
| |
Collapse
|
4
|
Samolis P, Zhu X, Sander MY. Time-Resolved Mid-Infrared Photothermal Microscopy for Imaging Water-Embedded Axon Bundles. Anal Chem 2023; 95:16514-16521. [PMID: 37880191 PMCID: PMC10652238 DOI: 10.1021/acs.analchem.3c02352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 10/07/2023] [Indexed: 10/27/2023]
Abstract
Few experimental tools exist for performing label-free imaging of biological samples in a water-rich environment due to the high infrared absorption of water, overlapping with major protein and lipid bands. A novel imaging modality based on time-resolved mid-infrared photothermal microscopy is introduced and applied to imaging axon bundles in a saline bath environment. Photothermally induced spatial gradients at the axon bundle membrane interfaces with saline and surrounding biological tissue are observed and temporally characterized by a high-speed boxcar detection system. Localized time profiles with an enhanced signal-to-noise, hyper-temporal image stacks, and two-dimensional mapping of the time decay profiles are acquired without the need for complex post image processing. Axon bundles are found to have a larger distribution of time decay profiles compared to the water background, allowing background differentiation based on these transient dynamics. The quantitative analysis of the signal evolution over time allows characterizing the level of thermal confinement at different regions. When axon bundles are surrounded by complex heterogeneous tissue, which contains smaller features, a stronger thermal confinement is observed compared to a water environment, thus shedding light on the heat transfer dynamics across aqueous biological interfaces.
Collapse
Affiliation(s)
- Panagis
D. Samolis
- Department
of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
- Photonics
Center, Boston University, Boston, Massachusetts 02215, United States
| | - Xuedong Zhu
- Photonics
Center, Boston University, Boston, Massachusetts 02215, United States
- Department
of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Michelle Y. Sander
- Department
of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
- Photonics
Center, Boston University, Boston, Massachusetts 02215, United States
- Department
of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
- Division
of Materials Science and Engineering, Boston
University, Brookline, Massachusetts 02446, United States
| |
Collapse
|
5
|
Rabani R, Saidi MH, Rajabpour A, Joly L, Merabia S. Enhanced Heat Flow between Charged Nanoparticles and an Aqueous Electrolyte. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15222-15230. [PMID: 37865920 DOI: 10.1021/acs.langmuir.3c01847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
Heat transfer through the interface between a metallic nanoparticle and an electrolyte solution has great importance in a number of applications, ranging from nanoparticle-based cancer treatments to nanofluids and solar energy conversion devices. However, the impact of the surface charge and dissolved ions on heat transfer has been scarcely explored so far. In this study, we compute the interface thermal conductance between hydrophilic and hydrophobic charged gold nanoparticles immersed in an electrolyte using equilibrium molecular dynamics simulations. Compared with an uncharged nanoparticle, we report a 3-fold increase of the Kapitza conductance for a nanoparticle surface charge of +320 mC/m2. This enhancement is shown to be approximately independent of the surface wettability, charge spatial distribution, and salt concentration. This allows us to express the Kapitza conductance enhancement in terms of the surface charge density on a master curve. Finally, we interpret the increase of the Kapitza conductance as a combined result of the shift of the water density distribution toward the charged nanoparticle and an accumulation of the counterions around the nanoparticle surface which increase the Coulombic interaction between the liquid and the charged nanoparticle. These considerations help us to apprehend the role of ions in heat transfer close to electrified surfaces.
Collapse
Affiliation(s)
- Reza Rabani
- Department of Mechanical Engineering, Karaj Branch, Islamic Azad University, Karaj 31499-68111, Iran
| | - Mohammad Hassan Saidi
- Center of Excellence in Energy Conversion (CEEC), School of Mechanical Engineering, Sharif University of Technology, Tehran 11155-9567, Iran
| | - Ali Rajabpour
- Advanced Simulation and Computing Laboratory (ASCL), Mechanical Engineering Department, Imam Khomeini International University, Qazvin 34148-96818, Iran
| | - Laurent Joly
- Institut Lumière Matière, Université de Lyon, Université Claude Bernard Lyon 1, CNRS, F-69622 Villeurbanne, France
| | - Samy Merabia
- Institut Lumière Matière, Université de Lyon, Université Claude Bernard Lyon 1, CNRS, F-69622 Villeurbanne, France
| |
Collapse
|
6
|
Liang Y, Diroll BT, Wong KL, Harvey SM, Wasielewski M, Ong WL, Schaller RD, Malen JA. Differentiating Thermal Conductances at Semiconductor Nanocrystal/Ligand and Ligand/Solvent Interfaces in Colloidal Suspensions. NANO LETTERS 2023; 23:3687-3693. [PMID: 37093047 PMCID: PMC10176576 DOI: 10.1021/acs.nanolett.2c04627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Infrared-pump, electronic-probe (IPEP) spectroscopy is used to measure heat flow into and out of CdSe nanocrystals suspended in an organic solvent, where the surface ligands are initially excited with an infrared pump pulse. Subsequently, the heat is transferred from the excited ligands to the nanocrystals and in parallel to the solvent. Parallel heat transfer in opposite directions uniquely enables us to differentiate the thermal conductances at the nanocrystal/ligand and ligand/solvent interfaces. Using a novel solution to the heat diffusion equation, we fit the IPEP data to find that the nanocrystal/ligand conductances range from 88 to 135 MW m-2 K-1 and are approximately 1 order of magnitude higher than the ligand/solvent conductances, which range from 7 to 26 MW m-2 K-1. Transient nonequilibrium molecular dynamics (MD) simulations of nanocrystal suspensions agree with IPEP data and show that ligands bound to the nanocrystal by bidentate bonds have more than twice the per-ligand conductance as those bound by monodentate bonds.
Collapse
Affiliation(s)
- Yuxing Liang
- Department of Mechanical Engineering, Carnegie Mellon University, 5000 Forbes Ave., Pittsburgh, Pennsylvania 15213, United States
| | - Benjamin T Diroll
- Center for Nanoscale Materials, Argonne National Laboratory, 9700 S Cass Ave., Lemont, Illinois 60439, United States
| | - Kae-Lin Wong
- ZJU-UIUC Institute, College of Energy Engineering, Zhejiang University, 718 East Haizhou Road, Hangzhou 310058, People's Republic of China
| | - Samantha M Harvey
- Department of Chemistry, Northwestern University, Evanston, IL 60208, United States
| | - Michael Wasielewski
- Department of Chemistry, Northwestern University, Evanston, IL 60208, United States
| | - Wee-Liat Ong
- ZJU-UIUC Institute, College of Energy Engineering, Zhejiang University, 718 East Haizhou Road, Hangzhou 310058, People's Republic of China
| | - Richard D Schaller
- Center for Nanoscale Materials, Argonne National Laboratory, 9700 S Cass Ave., Lemont, Illinois 60439, United States
- Department of Chemistry, Northwestern University, Evanston, IL 60208, United States
| | - Jonathan A Malen
- Department of Mechanical Engineering, Carnegie Mellon University, 5000 Forbes Ave., Pittsburgh, Pennsylvania 15213, United States
| |
Collapse
|
7
|
Loos SAM, Arabha S, Rajabpour A, Hassanali A, Roldán É. Nonreciprocal forces enable cold-to-hot heat transfer between nanoparticles. Sci Rep 2023; 13:4517. [PMID: 36934145 PMCID: PMC10024720 DOI: 10.1038/s41598-023-31583-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 03/14/2023] [Indexed: 03/20/2023] Open
Abstract
We study the heat transfer between two nanoparticles held at different temperatures that interact through nonreciprocal forces, by combining molecular dynamics simulations with stochastic thermodynamics. Our simulations reveal that it is possible to construct nano refrigerators that generate a net heat transfer from a cold to a hot reservoir at the expense of power exerted by the nonreciprocal forces. Applying concepts from stochastic thermodynamics to a minimal underdamped Langevin model, we derive exact analytical expressions predictions for the fluctuations of work, heat, and efficiency, which reproduce thermodynamic quantities extracted from the molecular dynamics simulations. The theory only involves a single unknown parameter, namely an effective friction coefficient, which we estimate fitting the results of the molecular dynamics simulation to our theoretical predictions. Using this framework, we also establish design principles which identify the minimal amount of entropy production that is needed to achieve a certain amount of uncertainty in the power fluctuations of our nano refrigerator. Taken together, our results shed light on how the direction and fluctuations of heat flows in natural and artificial nano machines can be accurately quantified and controlled by using nonreciprocal forces.
Collapse
Affiliation(s)
- Sarah A M Loos
- Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge, CB3 0WA, UK.
- ICTP - International Centre for Theoretical Physics, Strada Costiera, 11, 34151, Trieste, Italy.
| | - Saeed Arabha
- Department of Mechanical Engineering, Lassonde School of Engineering, York University, Toronto, Canada
- Advanced Simulation and Computing Laboratory (ASCL), Imam Khomeini International University, Qazvin, Iran
| | - Ali Rajabpour
- Advanced Simulation and Computing Laboratory (ASCL), Imam Khomeini International University, Qazvin, Iran
- School of Nano Science, Institute for Research in Fundamental Sciences (IPM), Tehran, Iran
| | - Ali Hassanali
- ICTP - International Centre for Theoretical Physics, Strada Costiera, 11, 34151, Trieste, Italy
| | - Édgar Roldán
- ICTP - International Centre for Theoretical Physics, Strada Costiera, 11, 34151, Trieste, Italy
| |
Collapse
|
8
|
Deng S, Huang Y, Mao C, Wang JG. Size-Dependent Interfacial Thermal Transport in Supported Platinum Nanocatalysts. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
9
|
Gutiérrez-Varela O, Merabia S, Santamaria R. Size-dependent effects of the thermal transport at gold nanoparticle-water interfaces. J Chem Phys 2022; 157:084702. [DOI: 10.1063/5.0096033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The transfer of heat from a plasmonic nanoparticle to its water environment has numerous applications in the fields of solar energy conversion and photothermal therapies. We use non-equilibrium molecular dynamics to investigate the size-dependent effects of the interfacial thermal conductance of gold nanoparticles immersed in water and of tunable wettability. The interfacial thermal conductance is found to increase when the nanoparticle size decreases. We rationalize such a behavior with a generalized acoustic model, where the interfacial bonding decreases with the nanoparticle size. The analysis of the interfacial thermal spectrum reveals the importance of the low frequency peak of the nanoparticle spectrum as it matches relatively well the oxygen peak in the vibrational spectrum. However, by reducing the nanoparticle size, the low frequency peak is exacerbated, explaining the enhanced heat transfer observed for small nanoparticles. Finally, we assess the accuracy of continuum heat transferequations to describe the thermal relaxation of small nanoparticles with initial high temperatures.We show that, before the nanoparticle looses its integrity, the continuum model succeed in describing with small percentage deviations the molecular-dynamics data. This work brings a simple methodology to understand, beyond the plasmonic nanoparticles, thermal boundary conductance between a nanopartice and its environment.
Collapse
Affiliation(s)
| | - Samy Merabia
- Institut Lumière Matière, CNRS Delegation Rhone-Auvergne, France
| | | |
Collapse
|
10
|
Chung CW, Stephens AD, Konno T, Ward E, Avezov E, Kaminski CF, Hassanali AA, Kaminski Schierle GS. Intracellular Aβ42 Aggregation Leads to Cellular Thermogenesis. J Am Chem Soc 2022; 144:10034-10041. [PMID: 35616634 PMCID: PMC9185738 DOI: 10.1021/jacs.2c03599] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
The aggregation of
Aβ42 is a hallmark of Alzheimer’s
disease. It is still not known what the biochemical changes are inside
a cell which will eventually lead to Aβ42 aggregation. Thermogenesis
has been associated with cellular stress, the latter of which may
promote aggregation. We perform intracellular thermometry measurements
using fluorescent polymeric thermometers to show that Aβ42 aggregation
in live cells leads to an increase in cell-averaged temperatures.
This rise in temperature is mitigated upon treatment with an aggregation
inhibitor of Aβ42 and is independent of mitochondrial damage
that can otherwise lead to thermogenesis. With this, we present a
diagnostic assay which could be used to screen small-molecule inhibitors
to amyloid proteins in physiologically relevant settings. To interpret
our experimental observations and motivate the development of future
models, we perform classical molecular dynamics of model Aβ
peptides to examine the factors that hinder thermal dissipation. We
observe that this is controlled by the presence of ions in its surrounding
environment, the morphology of the amyloid peptides, and the extent
of its hydrogen-bonding interactions with water. We show that aggregation
and heat retention by Aβ peptides are favored under intracellular-mimicking
ionic conditions, which could potentially promote thermogenesis. The
latter will, in turn, trigger further nucleation events that accelerate
disease progression.
Collapse
Affiliation(s)
- Chyi Wei Chung
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K
| | - Amberley D Stephens
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K
| | - Tasuku Konno
- UK Dementia Research Institute, Department of Clinical Neuroscience, University of Cambridge, Cambridge CB2 0AH, U.K
| | - Edward Ward
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K
| | - Edward Avezov
- UK Dementia Research Institute, Department of Clinical Neuroscience, University of Cambridge, Cambridge CB2 0AH, U.K
| | - Clemens F Kaminski
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K
| | - Ali A Hassanali
- Condensed Matter and Statistical Physics, International Centre for Theoretical Physics, Strada Costiera 11, Trieste 34151, Italy
| | - Gabriele S Kaminski Schierle
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K
| |
Collapse
|
11
|
Xi B, Zhao T, Gao Q, Wei Z, Zhao S. Surface Wettability Effect on Heat Transfer across Solid-Water Interfaces. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
12
|
Zhao C, An W, Zhang Y, Dong Q, Gao N. A Molecular Dynamics Analysis on Interfacial Thermal Resistance between Particle and Medium in Light-Induced Heat Transfer of Plasmonic Nanofluid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:2327-2334. [PMID: 35134292 DOI: 10.1021/acs.langmuir.1c03209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Light-induced heat transfer process of plasmonic nanofluids is critical for many applications, but the energy conversion pathway still remains controversial. In this work, we develop a calculation model based on the combination of the electromagnetic theory and molecular dynamics (MD) simulation to investigate the impact of the localized surface plasmon resonance (LSPR) on the heat transfer between nanoparticles and the surrounding medium in gold and silver nanofluids. It is found that the LSPR-induced enhanced electric field (EEF) can obviously reduce the interfacial thermal resistance to promote the heat transfer process, especially in silver nanofluids. The results reveal that the movement of water molecules can be violently perturbed by the EEF to overcome the binding force of nanoparticles, and therefore the energy transfer process in water molecules can be obviously enhanced. The effect of EEF is significant, especially in the initial heating stages when the temperature of the nanoparticles is relatively low. When the silver nanoparticle temperature is 400 K, the relative reduction ratio of the interfacial thermal resistance can reach 19.0% under the effect of the LSPR-induced EEF. The results also indicate that two different energy conversion mechanisms: photothermal and photoexcited electric-field enhancement are likely to coexist and jointly impact the heat transfer process in plasmonic nanofluids, and the effect of the latter cannot be neglected. This work provides some new insights for a deeper understanding of the light-induced heat transfer process in plasmonic nanofluids.
Collapse
Affiliation(s)
- Chang Zhao
- College of Mechanical Engineering, Tongji University, Shanghai 201804, P.R. China
| | - Wei An
- College of Mechanical Engineering, Tongji University, Shanghai 201804, P.R. China
| | - Yifan Zhang
- College of Mechanical Engineering, Tongji University, Shanghai 201804, P.R. China
| | - Qingchun Dong
- College of Mechanical Engineering, Tongji University, Shanghai 201804, P.R. China
| | - Naiping Gao
- College of Mechanical Engineering, Tongji University, Shanghai 201804, P.R. China
| |
Collapse
|
13
|
Roodbari M, Abbasi M, Arabha S, Gharedaghi A, Rajabpour A. Interfacial thermal conductance between TiO2 nanoparticle and water: A molecular dynamics study. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
14
|
Jiang M, Olarte-Plata JD, Bresme F. Heterogeneous thermal conductance of nanoparticle–fluid interfaces: An atomistic nodal approach. J Chem Phys 2022; 156:044701. [DOI: 10.1063/5.0074912] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Mingxuan Jiang
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, London W12 0BZ, United Kingdom
| | - Juan D. Olarte-Plata
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, London W12 0BZ, United Kingdom
| | - Fernando Bresme
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, London W12 0BZ, United Kingdom
| |
Collapse
|
15
|
Olarte-Plata JD, Gabriel J, Albella P, Bresme F. Spatial Control of Heat Flow at the Nanoscale Using Janus Particles. ACS NANO 2022; 16:694-709. [PMID: 34918910 DOI: 10.1021/acsnano.1c08220] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Janus nanoparticles (JNPs) feature heterogeneous compositions, bringing opportunities in technological and medical applications. We introduce a theoretical approach based on nonequilibrium molecular dynamics simulations and heat transfer continuum theory to investigate the temperature fields generated around heated spherical JNPs covering a wide range of particle sizes, from a few nm to 100 nm. We assess the performance of these nanoparticles to generate anisotropic heating at the nanoscale. We demonstrate that the contrasting interfacial thermal conductances of the fluid-material interfaces arising from the heterogeneous composition of the JNPs can be exploited to control the thermal fields around the nanoparticle, leading to a temperature difference between both sides of the nanoparticle (temperature contrast) that is significant for particles comprising regions with disparate hydrophilicity. We illustrate this idea using coarse-grained and atomistic models of gold nanoparticles with hydrophobic and hydrophilic coatings, in water. Furthermore, we introduce a continuum model to predict the temperature contrast as a function of the interfacial thermal conductance and nanoparticle size. We further show that, unlike homogeneous nanoparticles, the interfacial fluid temperature depends on the interfacial thermal conductance of Janus nanoparticles.
Collapse
Affiliation(s)
- Juan D Olarte-Plata
- Department of Chemistry, Molecular Sciences Research Hub Imperial College, W12 0BZ, London, United Kingdom
| | - Jordan Gabriel
- Department of Chemistry, Molecular Sciences Research Hub Imperial College, W12 0BZ, London, United Kingdom
| | - Pablo Albella
- Department of Applied Physics (Group of Optics), University of Cantabria, Avenida Los Castros, s/n, Santander 39005, Spain
| | - Fernando Bresme
- Department of Chemistry, Molecular Sciences Research Hub Imperial College, W12 0BZ, London, United Kingdom
| |
Collapse
|
16
|
Vitrac O, Nguyen PM, Hayert M. In Silico Prediction of Food Properties: A Multiscale Perspective. FRONTIERS IN CHEMICAL ENGINEERING 2022. [DOI: 10.3389/fceng.2021.786879] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Several open software packages have popularized modeling and simulation strategies at the food product scale. Food processing and key digestion steps can be described in 3D using the principles of continuum mechanics. However, compared to other branches of engineering, the necessary transport, mechanical, chemical, and thermodynamic properties have been insufficiently tabulated and documented. Natural variability, accented by food evolution during processing and deconstruction, requires considering composition and structure-dependent properties. This review presents practical approaches where the premises for modeling and simulation start at a so-called “microscopic” scale where constituents or phase properties are known. The concept of microscopic or ground scale is shown to be very flexible from atoms to cellular structures. Zooming in on spatial details tends to increase the overall cost of simulations and the integration over food regions or time scales. The independence of scales facilitates the reuse of calculations and makes multiscale modeling capable of meeting food manufacturing needs. On one hand, new image-modeling strategies without equations or meshes are emerging. On the other hand, complex notions such as compositional effects, multiphase organization, and non-equilibrium thermodynamics are naturally incorporated in models without linearization or simplifications. Multiscale method’s applicability to hierarchically predict food properties is discussed with comprehensive examples relevant to food science, engineering and packaging. Entropy-driven properties such as transport and sorption are emphasized to illustrate how microscopic details bring new degrees of freedom to explore food-specific concepts such as safety, bioavailability, shelf-life and food formulation. Routes for performing spatial and temporal homogenization with and without chemical details are developed. Creating a community sharing computational codes, force fields, and generic food structures is the next step and should be encouraged. This paper provides a framework for the transfer of results from other fields and the development of methods specific to the food domain.
Collapse
|
17
|
Hamzi H, Rajabpour A, Roldán É, Hassanali A. Learning the Hydrophobic, Hydrophilic, and Aromatic Character of Amino Acids from Thermal Relaxation and Interfacial Thermal Conductance. J Phys Chem B 2022; 126:670-678. [PMID: 35015542 DOI: 10.1021/acs.jpcb.1c07628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this study, the thermal relaxation of the 20 naturally occurring amino acids in water and in the protein lysozyme is investigated using transient nonequilibrium molecular dynamics simulations. By modeling the thermal relaxation process, the relaxation times of the amino acids in water occurs over a time scale covering 2-5 ps. For the hydrophobic amino acids, the relaxation time is controlled by the size of the hydrocarbon side chain, while for hydrophilic amino acids, the number of hydrogen bonds does not significantly affect the time scales of the heat dissipation. Our results show that the interfacial thermal conductance at the amino acid-water interface is in the range of 40-80 MW m-2 K-1. Hydrophobic and aromatic amino acids tend to have a lower interfacial thermal conductance. Notably, we show that amino acids can be correlated with their thermal relaxation times and molar masses, into simply connected phases with the same hydrophilicity, hydrophobicity, and aromaticity. The thermal relaxation slows down by a factor of up to five in the protein relative to that in water. In the case of the hydrophobic amino acids in the protein lysozyme, the slow down in the thermal relaxation relative to that in water appears to be controlled primarily by the size of the side chain.
Collapse
Affiliation(s)
- Heydar Hamzi
- Advanced Simulation and Computing Laboratory (ASCL), Mechanical Engineering Department, Imam Khomeini International University, Qazvin 34148-96818, Iran
| | - Ali Rajabpour
- Advanced Simulation and Computing Laboratory (ASCL), Mechanical Engineering Department, Imam Khomeini International University, Qazvin 34148-96818, Iran
| | - Édgar Roldán
- The Abdus Salam International Center for Theoretical Physics, Strada Costiera 11, 34151 Trieste, Italy
| | - Ali Hassanali
- The Abdus Salam International Center for Theoretical Physics, Strada Costiera 11, 34151 Trieste, Italy
| |
Collapse
|
18
|
Usoltseva LO, Volkov DS, Karpushkin EA, Korobov MV, Proskurnin MA. Thermal Conductivity of Detonation Nanodiamond Hydrogels and Hydrosols by Direct Heat Flux Measurements. Gels 2021; 7:248. [PMID: 34940308 PMCID: PMC8701344 DOI: 10.3390/gels7040248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 11/27/2021] [Accepted: 11/28/2021] [Indexed: 11/22/2022] Open
Abstract
The methodology and results of thermal conductivity measurements by the heat-flow technique for the detonation nanodiamond suspension gels, sols, and powders of several brands in the range of nanoparticle concentrations of 2-100% w/w are discussed. The conditions of assessing the thermal conductivity of the fluids and gels (a FOX 50 heat-flow meter) with the reproducibility (relative standard deviation) of 1% are proposed. The maximum increase of 13% was recorded for the nanodiamond gels (140 mg mL-1 or 4% v/v) of the RDDM brand, at 0.687 ± 0.005 W m-1 K-1. The thermal conductivity of the nanodiamond powders is estimated as 0.26 ± 0.03 and 0.35 ± 0.04 W m-1 K-1 for the RUDDM and RDDM brands, respectively. The thermal conductivity for the aqueous pastes containing 26% v/v RUDDM is 0.85 ± 0.04 W m-1 K-1. The dignities, shortcomings, and limitations of this approach are discussed and compared with the determining of the thermal conductivity with photothermal-lens spectrometry.
Collapse
Affiliation(s)
| | - Dmitry S. Volkov
- Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia; (L.O.U.); (E.A.K.); (M.V.K.); (M.A.P.)
| | | | | | | |
Collapse
|
19
|
Study the effect of Ag nanoparticles on the kinetics of CO2 hydrate growth by molecular dynamics simulation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117668] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
20
|
Rabani R, Saidi MH, Joly L, Merabia S, Rajabpour A. Enhanced local viscosity around colloidal nanoparticles probed by equilibrium molecular dynamics simulations. J Chem Phys 2021; 155:174701. [PMID: 34742212 DOI: 10.1063/5.0065050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Nanofluids-dispersions of nanometer-sized particles in a liquid medium-have been proposed for a wide variety of thermal management applications. It is known that a solid-like nanolayer of liquid of typical thicknesses of 0.5-1 nm surrounding the colloidal nanoparticles can act as a thermal bridge between the nanoparticle and the bulk liquid. Yet, its effect on the nanofluid viscosity has not been elucidated so far. In this article, we compute the local viscosity of the nanolayer using equilibrium molecular dynamics based on the Green-Kubo formula. We first assess the validity of the method to predict the viscosity locally. We apply this methodology to the calculation of the local viscosity in the immediate vicinity of a metallic nanoparticle for a wide range of solid-liquid interaction strength, where a nanolayer of thickness 1 nm is observed as a result of the interaction with the nanoparticle. The viscosity of the nanolayer, which is found to be higher than its corresponding bulk value, is directly dependent on the solid-liquid interaction strength. We discuss the origin of this viscosity enhancement and show that the liquid density increment alone cannot explain the values of the viscosity observed. Rather, we suggest that the solid-like structure of the distribution of the liquid atoms in the vicinity of the nanoparticle contributes to the nanolayer viscosity enhancement. Finally, we observe a failure of the Stokes-Einstein relation between viscosity and diffusion close to the wall, depending on the liquid-solid interaction strength, which we rationalize in terms of the hydrodynamic slip.
Collapse
Affiliation(s)
- Reza Rabani
- Center of Excellence in Energy Conversion (CEEC), School of Mechanical Engineering, Sharif University of Technology, Tehran 11155-9567, Iran
| | - Mohammad Hassan Saidi
- Center of Excellence in Energy Conversion (CEEC), School of Mechanical Engineering, Sharif University of Technology, Tehran 11155-9567, Iran
| | - Laurent Joly
- Univ Lyon, Univ Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622 Villeurbanne, France
| | - Samy Merabia
- Univ Lyon, Univ Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622 Villeurbanne, France
| | - Ali Rajabpour
- Advanced Simulation and Computing Laboratory (ASCL), Mechanical Engineering Department, Imam Khomeini International University, Qazvin, Iran
| |
Collapse
|
21
|
Heyhat M, Abbasi M, Rajabpour A. Molecular dynamic simulation on the density of titanium dioxide and silver water-based nanofluids using ternary mixture model. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115966] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
22
|
Tabayashi Y, Sakaki S, Koshizaki N, Yamauchi Y, Ishikawa Y. Behavior of Thermally Induced Nanobubbles during Instantaneous Particle Heating by Pulsed Laser Melting in Liquid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:7167-7175. [PMID: 34078084 DOI: 10.1021/acs.langmuir.1c00736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Pulsed laser melting in liquid (PLML) is a technique to produce submicrometer spherical particles (SMPs). In this process, raw particles dispersed in liquid are selectively heated, and thermally induced nanobubbles (TINBs) at the particle surface are generated and act as a thermal barrier to enhance the temperature increase during heating. However, monitoring TINBs is difficult since PLML is a low-temperature, nonplasma process. Simple transmittance measurements of monodisperse Au SMP (250 nm) colloidal solutions on a transient time scale were used to monitor the temporal dependence of the TINB thickness and the pressure within the bubble. By applying this technique for ZnO and Sn SMP formation, TINBs in the PLML process are important in promoting the formation of large particles via particle merging during laser heating.
Collapse
Affiliation(s)
- Yasunori Tabayashi
- Graduate School of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Shota Sakaki
- Graduate School of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Naoto Koshizaki
- Graduate School of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Yuji Yamauchi
- Graduate School of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Yoshie Ishikawa
- Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| |
Collapse
|
23
|
Lim Y, Noh SH, Shin TH, Lee JU, Lungerich D, Lee JH, Cheon J. Magnetothermally Activated Nanometer-level Modular Functional Group Grafting of Nanoparticles. NANO LETTERS 2021; 21:3649-3656. [PMID: 33856815 DOI: 10.1021/acs.nanolett.1c00770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nanoparticles with multifunctionality and high colloidal stability are essential for biomedical applications. However, their use is often hindered by the formation of thick coating shells and/or nanoparticle agglomeration. Herein, we report a single nanoparticle coating strategy to form 1 nm polymeric shells with a variety of chemical functional groups and surface charges. Under exposure to alternating magnetic field, nanosecond thermal energy pulses trigger a polymerization in the region only a few nanometers from the magnetic nanoparticle (MNP) surface. Modular coatings containing functional groups, according to the respective choice of monomers, are possible. In addition, the surface charge can be tuned from negative through neutral to positive. We adopted a coating method for use in biomedical targeting studies where obtaining compact nanoparticles with the desired surface charge is critical. A single MNP with a zwitterionic charge can provide excellent colloidal stability and cell-specific targeting.
Collapse
Affiliation(s)
- Yongjun Lim
- Center for NanoMedicine, Institute for Basic Science (IBS), Seoul 03722, Republic of Korea
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Seung-Hyun Noh
- Center for NanoMedicine, Institute for Basic Science (IBS), Seoul 03722, Republic of Korea
| | - Tae-Hyun Shin
- Center for NanoMedicine, Institute for Basic Science (IBS), Seoul 03722, Republic of Korea
| | - Jung-Uk Lee
- Center for NanoMedicine, Institute for Basic Science (IBS), Seoul 03722, Republic of Korea
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Dominik Lungerich
- Center for NanoMedicine, Institute for Basic Science (IBS), Seoul 03722, Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME), Advanced Science Institute, Yonsei University, Seoul 03722, Republic of Korea
| | - Jae-Hyun Lee
- Center for NanoMedicine, Institute for Basic Science (IBS), Seoul 03722, Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME), Advanced Science Institute, Yonsei University, Seoul 03722, Republic of Korea
| | - Jinwoo Cheon
- Center for NanoMedicine, Institute for Basic Science (IBS), Seoul 03722, Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME), Advanced Science Institute, Yonsei University, Seoul 03722, Republic of Korea
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| |
Collapse
|
24
|
Rajagopal MC, Sinha S. Cellular Thermometry Considerations for Probing Biochemical Pathways. Cell Biochem Biophys 2021; 79:359-373. [PMID: 33797706 DOI: 10.1007/s12013-021-00979-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/16/2021] [Indexed: 12/28/2022]
Abstract
Temperature is a fundamental thermodynamic property that can serve as a probe of biochemical reactions. Extracellular thermometry has previously been used to probe cancer metabolism and thermoregulation, with measured temperature changes of ~1-2 K in tissues, consistent with theoretical predictions. In contrast, previous intracellular thermometry studies remain disputed due to reports of >1 K intracellular temperature rises over 5 min or more that are inconsistent with theory. Thus, the origins of such anomalous temperature rises remain unclear. An improved quantitative understanding of intracellular thermometry is necessary to provide a clearer perspective for future measurements. Here, we develop a generalizable framework for modeling cellular heat diffusion over a range of subcellular-to-tissue length scales. Our model shows that local intracellular temperature changes reach measurable limits (>0.1 K) only when exogenously stimulated. On the other hand, extracellular temperatures can be measurable (>0.1 K) in tissues even from endogenous biochemical pathways. Using these insights, we provide a comprehensive approach to choosing an appropriate cellular thermometry technique by analyzing thermogenic reactions of different heat rates and time constants across length scales ranging from subcellular to tissues. Our work provides clarity on cellular heat diffusion modeling and on the required thermometry approach for probing thermogenic biochemical pathways.
Collapse
Affiliation(s)
- Manjunath C Rajagopal
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Sanjiv Sinha
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
| |
Collapse
|
25
|
Jin C, Wu Q, Zhang H, Yang G, Yuan X, Fu H. Study on preparation, stability, thermal conductivity, and viscosity of silver nanoparticles-decorated three-dimensional graphene-like porous carbon hybrid nanofluids. NANOTECHNOLOGY 2021; 32:245712. [PMID: 33691293 DOI: 10.1088/1361-6528/abed77] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
In the present study, a novel silver nanoparticles-decorated three-dimensional graphene-like porous carbon (Ag/3D GPC) nanocomposite has been synthesized via the method of carbonization and reduction of silver ions at the same time. This Ag/3D GPC nanocomposite possess an interconnected network of well crystalized and submicron-sized macropores with thin graphene walls of several nanometers, where silver nanoparticles distributing uniformly. The water based and ethylene glycol based Ag/3D GPC hybrid nanofluids have been prepared without any surfactant. The hybrid nanofluids with low concentration (<0.8 wt%) can be steadily dispersed for more than six months. The thermal conductivity enhancement for the nanofluids with 0.1 wt% can reach 10.3% and 8.8% at 25 °C compared with pure water and ethylene glycol, respectively. The viscosity of nanofluids is investigated, the temperature dependence of the dynamic viscosity obeys an Arrhenius-like behavior. The prepared Ag/3D GPC hybrid nanofluids with good stability and thermal conductivity are promisingly considered to be used in heat transfer field.
Collapse
Affiliation(s)
- Can Jin
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Qibai Wu
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, People's Republic of China
| | - Haiyan Zhang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, People's Republic of China
| | - Guoqiang Yang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Xingxing Yuan
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Huiqing Fu
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| |
Collapse
|
26
|
Siegel J, Kaimlová M, Vyhnálková B, Trelin A, Lyutakov O, Slepička P, Švorčík V, Veselý M, Vokatá B, Malinský P, Šlouf M, Hasal P, Hubáček T. Optomechanical Processing of Silver Colloids: New Generation of Nanoparticle-Polymer Composites with Bactericidal Effect. Int J Mol Sci 2020; 22:ijms22010312. [PMID: 33396769 PMCID: PMC7794995 DOI: 10.3390/ijms22010312] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 12/25/2020] [Accepted: 12/27/2020] [Indexed: 12/11/2022] Open
Abstract
The properties of materials at the nanoscale open up new methodologies for engineering prospective materials usable in high-end applications. The preparation of composite materials with a high content of an active component on their surface is one of the current challenges of materials engineering. This concept significantly increases the efficiency of heterogeneous processes moderated by the active component, typically in biological applications, catalysis, or drug delivery. Here we introduce a general approach, based on laser-induced optomechanical processing of silver colloids, for the preparation of polymer surfaces highly enriched with silver nanoparticles (AgNPs). As a result, the AgNPs are firmly immobilized in a thin surface layer without the use of any other chemical mediators. We have shown that our approach is applicable to a broad spectrum of polymer foils, regardless of whether they absorb laser light or not. However, if the laser radiation is absorbed, it is possible to transform smooth surface morphology of the polymer into a roughened one with a higher specific surface area. Analyses of the release of silver from the polymer surface together with antibacterial tests suggested that these materials could be suitable candidates in the fight against nosocomial infections and could inhibit the formation of biofilms with a long-term effect.
Collapse
Affiliation(s)
- Jakub Siegel
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic; (M.K.); (B.V.); (A.T.); (O.L.); (P.S.); (V.Š.)
- Correspondence: ; Tel.: +420-220-445-149
| | - Markéta Kaimlová
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic; (M.K.); (B.V.); (A.T.); (O.L.); (P.S.); (V.Š.)
| | - Barbora Vyhnálková
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic; (M.K.); (B.V.); (A.T.); (O.L.); (P.S.); (V.Š.)
| | - Andrii Trelin
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic; (M.K.); (B.V.); (A.T.); (O.L.); (P.S.); (V.Š.)
| | - Oleksiy Lyutakov
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic; (M.K.); (B.V.); (A.T.); (O.L.); (P.S.); (V.Š.)
| | - Petr Slepička
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic; (M.K.); (B.V.); (A.T.); (O.L.); (P.S.); (V.Š.)
| | - Václav Švorčík
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic; (M.K.); (B.V.); (A.T.); (O.L.); (P.S.); (V.Š.)
| | - Martin Veselý
- Department of Organic Technology, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic;
| | - Barbora Vokatá
- Department of Microbiology, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic;
| | - Petr Malinský
- Department of Physics, Faculty of Science, University of Jan Evangelista in Ústí nad Labem, 400 03 Usti nad Labem, Czech Republic;
| | - Miroslav Šlouf
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague, Czech Republic;
| | - Pavel Hasal
- Department of Chemical Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic;
| | - Tomáš Hubáček
- Biology Centre of the Czech Academy of Sciences, SoWa National Research Infrastructure, Na Sádkách 7, 370 05 České Budejovice, Czech Republic;
| |
Collapse
|
27
|
Bhattarai H, Newman KE, Gezelter JD. The role of polarizability in the interfacial thermal conductance at the gold-water interface. J Chem Phys 2020; 153:204703. [PMID: 33261479 DOI: 10.1063/5.0027847] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have studied the interfacial thermal conductance, G, of the flat Au(111)-water interface using non-equilibrium molecular dynamics simulations. We utilized two metal models, one based on the embedded atom method (EAM) and the other including metallic polarizability via a density readjusting EAM. These were combined with three popular water models, SPC/E, TIP4P, and TIP4P-FQ, to understand the role of polarizability in the thermal transport process. A thermal flux was introduced using velocity shearing and scaling reverse non-equilibrium molecular dynamics, and transport coefficients were measured by calculating the resulting thermal gradients and temperature differences at the interface. Our primary finding is that the computed interfacial thermal conductance between a bare metal interface and water increases when polarizability is taken into account in the metal model. Additional work to understand the origin of the conductance difference points to changes in the local ordering of the water molecules in the first two layers of water above the metal surface. Vibrational densities of states on both sides of the interface exhibit interesting frequency modulation close to the surface but no obvious differences due to metal polarizability.
Collapse
Affiliation(s)
- Hemanta Bhattarai
- Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Kathie E Newman
- Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - J Daniel Gezelter
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA
| |
Collapse
|
28
|
Montazeri K, Abdolhosseini Qomi MJ, Won Y. Solid-like Behaviors Govern Evaporative Transport in Adsorbed Water Nanofilms. ACS APPLIED MATERIALS & INTERFACES 2020; 12:53416-53424. [PMID: 33191726 DOI: 10.1021/acsami.0c13647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The thermophysical attributes of water molecules confined in a sub-nanometer thickness significantly differ from those in bulk liquid where their molecular behaviors start governing interfacial physics at the nanoscale. In this study, we elucidate nanothin film evaporation by employing a computational approach from a molecular perspective. As the liquid thickness decreases, the solid-like characteristics of adsorbed water nanofilms make the resistance at solid-liquid interfaces or Kapitza resistance significant. Kapitza resistances not only show a strong correlation with the surface wettability but also dominate the overall thermal resistance during evaporation rather than the resistance at evaporating liquid-vapor interfaces. Once the liquid thickness reaches the critical value of 0.5-0.6 nm, the evaporation kinetics is suppressed due to the excessive forces between the liquid and solid atoms. The understanding of molecular-level behaviors explains how a hydrophilic surface plays a role in determining evaporation rates from an atomistic perspective.
Collapse
Affiliation(s)
- Kimia Montazeri
- Department of Mechanical and Aerospace Engineering, University of California Irvine, Irvine, California 92697, United States
| | | | - Yoonjin Won
- Department of Mechanical and Aerospace Engineering, University of California Irvine, Irvine, California 92697, United States
| |
Collapse
|
29
|
|
30
|
Rabani R, Heidarinejad G, Harting J, Shirani E. Thermally induced stress in a nanoconfined gas medium. J Mol Model 2020; 26:180. [DOI: 10.1007/s00894-020-04443-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 06/15/2020] [Indexed: 11/30/2022]
|
31
|
Shevkunov SV. Condensed Water Phase Nuclei in the Field of a Vacancy on a Crystalline Substrate Surface. COLLOID JOURNAL 2020. [DOI: 10.1134/s1061933x20040122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
32
|
Study of the effects of particle shape and base fluid type on density of nanofluids using ternary mixture formula: A molecular dynamics simulation. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112831] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|