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Zhu K, Gispert Contamina I, Ces O, Barter LMC, Hindley JW, Elani Y. Magnetic Modulation of Biochemical Synthesis in Synthetic Cells. J Am Chem Soc 2024; 146:13176-13182. [PMID: 38691505 PMCID: PMC11099998 DOI: 10.1021/jacs.4c00845] [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: 01/18/2024] [Revised: 03/19/2024] [Accepted: 04/09/2024] [Indexed: 05/03/2024]
Abstract
Synthetic cells can be constructed from diverse molecular components, without the design constraints associated with modifying 'living' biological systems. This can be exploited to generate cells with abiotic components, creating functionalities absent in biology. One example is magnetic responsiveness, the activation and modulation of encapsulated biochemical processes using a magnetic field, which is absent from existing synthetic cell designs. This is a critical oversight, as magnetic fields are uniquely bio-orthogonal, noninvasive, and highly penetrative. Here, we address this by producing artificial magneto-responsive organelles by coupling thermoresponsive membranes with hyperthermic Fe3O4 nanoparticles and embedding them in synthetic cells. Combining these systems enables synthetic cell microreactors to be built using a nested vesicle architecture, which can respond to alternating magnetic fields through in situ enzymatic catalysis. We also demonstrate the modulation of biochemical reactions by using different magnetic field strengths and the potential to tune the system using different lipid compositions. This platform could unlock a wide range of applications for synthetic cells as programmable micromachines in biomedicine and biotechnology.
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Affiliation(s)
- Karen
K. Zhu
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City, London W12
0BZ, U.K.
- Department
of Chemical Engineering, Imperial College
London, South Kensington, London SW7 2AZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
- Institute
of Chemical Biology, Imperial College London,
Molecular Sciences Research Hub, White City, London W12
0BZ, U.K.
| | - Ignacio Gispert Contamina
- Department
of Chemical Engineering, Imperial College
London, South Kensington, London SW7 2AZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
| | - Oscar Ces
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City, London W12
0BZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
- Institute
of Chemical Biology, Imperial College London,
Molecular Sciences Research Hub, White City, London W12
0BZ, U.K.
| | - Laura M. C. Barter
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City, London W12
0BZ, U.K.
- Institute
of Chemical Biology, Imperial College London,
Molecular Sciences Research Hub, White City, London W12
0BZ, U.K.
| | - James W. Hindley
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City, London W12
0BZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
- Institute
of Chemical Biology, Imperial College London,
Molecular Sciences Research Hub, White City, London W12
0BZ, U.K.
| | - Yuval Elani
- Department
of Chemical Engineering, Imperial College
London, South Kensington, London SW7 2AZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
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2
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Mani A, Ramasamy P, Prabhu AAM, Rajendiran N. Investigation of Ag and Ag/Co bimetallic nanoparticles with naproxen-cyclodextrin inclusion complex. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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3
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The Mechanistic Integration and Thermodynamic Optimality of a Nanomotor. Symmetry (Basel) 2022. [DOI: 10.3390/sym14020416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
The performance of artificial nanomotors is still far behind nature-made biomolecular motors. A mechanistic disparity between the two categories exists: artificial motors often rely on a single mechanism to rectify directional motion, but biomotors integrate multiple mechanisms for better performance. This study proposes a design for a motor-track system and shows that by introducing asymmetric compound foot-track interactions, both selective foot detachment and biased foot-track binding arise from the mechanics of the system. The two mechanisms are naturally integrated to promote the motility of the motor towards being unidirectional, while each mechanism alone only achieves 50% directional fidelity at most. Based on a reported theory, the optimization of the motor is conducted via maximizing the directional fidelity. Along the optimization, the directional fidelity of the motor is raised by parameters that concentrate more energy on driving selective-foot detachment and biased binding, which in turn promotes work production due to the two energies converting to work via a load attached. However, the speed of the motor can drop significantly after the optimization because of energetic competition between speed and directional fidelity, which causes a speed-directional fidelity tradeoff. As a case study, these results test thermodynamic correlation between the performances of a motor and suggest that directional fidelity is an important quantity for motor optimization.
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4
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Gogoi H, Maddala BG, Ali F, Datta A. Role of Solvent in Electron-Phonon Relaxation Dynamics in Core-Shell Au-SiO 2 Nanoparticles. Chemphyschem 2021; 22:2201-2206. [PMID: 34402561 DOI: 10.1002/cphc.202100592] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Indexed: 01/03/2023]
Abstract
Relaxation dynamics of plasmons in Au-SiO2 core-shell nanoparticles have been followed by femtosecond pump-probe technique. The effect of excitation pump energy and surrounding medium on the time constants associated with the hot electron relaxation has been elucidated. A gradual increase in the electron-phonon relaxation time with pump energy is observed and can be attributed to the higher perturbation of the electron distribution in AuNPs at higher pump energy. Variation in time constants for the electron-phonon relaxation in different solvents is rationalized on the basis of their thermal conductivities, which govern the rate of dissipation of heat of photoexcited electrons in the nanoparticles. On the other hand, phonon-phonon relaxation is found to be much less effective than electron-phonon relaxation for the dissipation of energy of the excited electron and the time constants associated with it remain unaffected by thermal conductivity of the solvent.
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Affiliation(s)
- Hemen Gogoi
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Bala Gopal Maddala
- Department of Chemistry, IIT Bombay, IITB-Monash Research Academy, Mumbai, 400076, India
| | - Fariyad Ali
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Anindya Datta
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
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5
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Jayasree A, Ivanovski S, Gulati K. ON or OFF: Triggered therapies from anodized nano-engineered titanium implants. J Control Release 2021; 333:521-535. [DOI: 10.1016/j.jconrel.2021.03.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 12/13/2022]
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6
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Rommelfanger NJ, Ou Z, Keck CH, Hong G. Differential heating of metal nanostructures at radio frequencies. PHYSICAL REVIEW APPLIED 2021; 15:054007. [PMID: 36268260 PMCID: PMC9581340 DOI: 10.1103/physrevapplied.15.054007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Nanoparticles with strong absorption of incident radio frequency (RF) or microwave irradiation are desirable for remote hyperthermia treatments. While controversy has surrounded the absorption properties of spherical metallic nanoparticles, other geometries such as prolate and oblate spheroids have not received sufficient attention for application in hyperthermia therapies. Here, we use the electrostatic approximation to calculate the relative absorption ratio of metallic nanoparticles in various biological tissues. We consider a broad parameter space, sweeping across frequencies from 1 MHz to 10 GHz, while also tuning the nanoparticle dimensions from spheres to high-aspect-ratio spheroids approximating nanowires and nanodiscs. We find that while spherical metallic nanoparticles do not offer differential heating in tissue, large absorption cross sections can be obtained from long prolate spheroids, while thin oblate spheroids offer minor potential for absorption. Our results suggest that metallic nanowires should be considered for RF- and microwave-based wireless hyperthermia treatments in many tissues going forward.
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Affiliation(s)
- Nicholas J. Rommelfanger
- Department of Applied Physics, Stanford University, Stanford, CA, 94305, USA
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, 94305, USA
| | - Zihao Ou
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, 94305, USA
| | - Carl H.C. Keck
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, 94305, USA
| | - Guosong Hong
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, 94305, USA
- Corresponding author:
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7
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Abstract
The majority of biological processes are regulated by enzymes, precise control over specific enzymes could create the potential for controlling cellular processes remotely. We show that the thermophilic enzyme thermolysin can be remotely activated in 17.76 MHz radiofrequency (RF) fields when covalently attached to 6.1 nm gold coated magnetite nanoparticles. Without raising the bulk solution temperature, we observe enzyme activity as if the solution was 16 ± 2 °C warmer in RF fields-an increase in enzymatic rate of 129 ± 8%. Kinetics studies show that the activity increase of the enzyme is consistent with the induced fit of a hot enzyme with cold substrate.
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8
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Etemadi H, Plieger PG. Magnetic Fluid Hyperthermia Based on Magnetic Nanoparticles: Physical Characteristics, Historical Perspective, Clinical Trials, Technological Challenges, and Recent Advances. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.202000061] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hossein Etemadi
- School of Fundamental Sciences Massey University Palmerston North 4474 New Zealand
| | - Paul G. Plieger
- School of Fundamental Sciences Massey University Palmerston North 4474 New Zealand
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9
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Mirvakili SM, Ngo QP, Langer R. Polymer Nanocomposite Microactuators for On-Demand Chemical Release via High-Frequency Magnetic Field Excitation. NANO LETTERS 2020; 20:4816-4822. [PMID: 32479730 PMCID: PMC7349659 DOI: 10.1021/acs.nanolett.0c00648] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 05/30/2020] [Indexed: 05/30/2023]
Abstract
On-demand delivery of substances has been demonstrated for various applications in the fields of chemistry and biomedical engineering. Single-pulse release profile has been shown previously for micro/nanoparticles in different form factors. However, to obtain a sustained release, a pulsatile release profile is needed. Here, we demonstrate such a release profile from polymer magnetic nanocomposite microspheres loaded with chemicals. By exciting the microactuators with AC magnetic fields, we could achieve up to 61% cumulative release over a five-day period. One of the main advantages of using a magnetic stimulus is that the properties of the environment (e.g., transparency, density, and depth) in which the particles are located do not affect the performance. The operating magnitude of the magnetic field used in this work is safe and does not interact with any nonmetallic materials. The proposed approach can potentially be used in microchemistry, drug delivery, lab-on-chip, and microrobots for drug delivery.
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Affiliation(s)
- Seyed M. Mirvakili
- Koch
Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Quynh P. Ngo
- Department
of Materials Science and Engineering, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Robert Langer
- Koch
Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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10
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Lin FC, Zink JI. Probing the Local Nanoscale Heating Mechanism of a Magnetic Core in Mesoporous Silica Drug-Delivery Nanoparticles Using Fluorescence Depolarization. J Am Chem Soc 2020; 142:5212-5220. [PMID: 32091888 DOI: 10.1021/jacs.9b13082] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In the presence of an alternating magnetic field (AMF), a superparamagnetic iron oxide nanoparticle (SPION) generates heat. Understanding the local heating mechanism of a SPION in suspension and in a mesoporous silica nanoparticle (MSN) will advance the design of hyperthermia-based nanotheranostics and AMF-stimulated drug delivery in biomedical applications. The AMF-induced heating of single-domain SPION can be explained by the Néel relaxation (reorientation of the magnetization) or the Brownian relaxation (motion of the particle). The latter is investigated using fluorescence depolarization based on detecting the mobility-dependent polarization anisotropy (r) of two luminescence emission bands at different wavelengths corresponded to the europium-doped luminescent SPION (EuSPION) core and the silica-based intrinsically emitting shell of the core-shell MSN. The fluorescence depolarization experiments are carried out with both the free and the silica-encapsulated SPION nanoparticles with and without application of the AMF. The r value of a EuSPION core-mesoporous silica shell in the presence of the AMF does not change, indicating that no additional rotational motion of the core-shell nanoparticles is induced by the AMF, disproving the contribution of Brownian heating and thus supporting Néel relaxation as the dominant heating mechanism.
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Affiliation(s)
- Fang-Chu Lin
- Department of Chemistry and Biochemistry, University of California-Los Angeles, Los Angeles, California 90095, United States.,California NanoSystems Institute, University of California-Los Angeles, Los Angeles, California 90095, United States
| | - Jeffrey I Zink
- Department of Chemistry and Biochemistry, University of California-Los Angeles, Los Angeles, California 90095, United States.,California NanoSystems Institute, University of California-Los Angeles, Los Angeles, California 90095, United States
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11
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Wu Z, Zhang L. Photoregulation between small DNAs and reversible photochromic molecules. Biomater Sci 2019; 7:4944-4962. [PMID: 31650136 DOI: 10.1039/c9bm01305a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Oligonucleotides are widely used biological materials in the fields of biomedicine, nanotechnology, and materials science. Due to the demands for the photoregulation of DNA activities, scientists are placing more and more research interest in the interactions between reversible photochromic molecules and DNAs. Photochromic molecules can work as switches for regulating the DNAs' behavior under light irradiation; meanwhile, DNAs also exert influence over the photochromic molecules. The photochromic molecules can be attached to DNAs either by covalent bonds or by noncovalent forces, which results in different regulative functions. Azobenzenes, spiropyrans, diarylethenes, and stilbene-like compounds are important photochromic molecules working as photoswitches. By summarizing their interactions with oligonucleotides, this review intends to facilitate the relevant research on oligonucleotides/photochromic molecules in the biological and medicinal fields and in materials science.
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Affiliation(s)
- Zhongtao Wu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, No. 53 Zhengzhou Rd, Qingdao, 266042, PR China.
| | - Lei Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, No. 53 Zhengzhou Rd, Qingdao, 266042, PR China.
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12
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Zhang Y, Li F, Li M, Mao X, Jing X, Liu X, Li Q, Li J, Wang L, Fan C, Zuo X. Encoding Carbon Nanotubes with Tubular Nucleic Acids for Information Storage. J Am Chem Soc 2019; 141:17861-17866. [PMID: 31603326 DOI: 10.1021/jacs.9b09116] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
DNA has evolved to be a type of unparalleled material for storing and transmitting genetic information. Much recent attention has been drawn to translate the natural specificity of DNA hybridization reactions for information storage in vitro. In this work, we developed a new type of tubular nucleic acid (TNA) by condensing DNA chains on the surface of one-dimensional carbon nanotubes (CNTs). We find that DNA interacts with CNTs in a sequence-specific manner, resulting in different conformations including helix, i-motif, and G-quadruplex. Atomic force microscopic (AFM) imaging revealed that TNAs exhibit distinct patterns with characteristic height and distance that can be exploited for two-dimensional encoding on CNTs. We further demonstrate the use of TNA-CNT for information storage with visual output. This noncanonical, DNA hybridization-free strategy provides a new route to DNA-based data storage.
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Affiliation(s)
- Yueyue Zhang
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine and School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200127 , China.,Division of Physical Biology and Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Synchrotron Radiation Facility , Shanghai Institute of Applied Physics, Chinese Academy of Sciences, University of Chinese Academy of Sciences , Shanghai 201800 , China
| | - Fan Li
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine and School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200127 , China
| | - Min Li
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine and School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200127 , China
| | - Xiuhai Mao
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine and School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200127 , China
| | - Xinxin Jing
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine and School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200127 , China
| | - Xiaoguo Liu
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine and School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200127 , China
| | - Qian Li
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine and School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200127 , China
| | - Jiang Li
- Division of Physical Biology and Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Synchrotron Radiation Facility , Shanghai Institute of Applied Physics, Chinese Academy of Sciences, University of Chinese Academy of Sciences , Shanghai 201800 , China
| | - Lihua Wang
- Division of Physical Biology and Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Synchrotron Radiation Facility , Shanghai Institute of Applied Physics, Chinese Academy of Sciences, University of Chinese Academy of Sciences , Shanghai 201800 , China
| | - Chunhai Fan
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine and School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200127 , China
| | - Xiaolei Zuo
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine and School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200127 , China
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13
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Xiong R, Zhang W, Zhang Y, Zhang Y, Chen Y, He Y, Fan H. Remote and real time control of an FVIO-enzyme hybrid nanocatalyst using magnetic stimulation. NANOSCALE 2019; 11:18081-18089. [PMID: 31343649 DOI: 10.1039/c9nr04289j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Remote modulation of nanoscale biochemical processes in a living system using magnetic stimulation is appealing but is restricted by the lack of a highly efficient nanomediator which can deliver timely and effective response to biological molecules under an external magnetic field. Herein, we report the development of a novel nanocatalyst based on a ferrimagnetic vortex-domain nanoring (FVIO)-enzyme hybrid that enables real-time modulation of enzymatic catalysis under an alternating magnetic field (AMF). The role of the FVIO is to provide localized heating immediately upon exposure to an AMF, which efficiently and selectively promotes the activity of conjugated enzymes on the surface. The reaction rate of the as-fabricated FVIO-β-Gal hybrid was shown to be boosted up to 180% of its initial value by localized heat generated under an AMF of 550 Oe in less than 2 s and without heating up the bulk solution. Moreover, the degree of activity acceleration was shown to be tunable by increasing the strength of the AMF. The concept of remote magnetic stimulation of enzymatic reactions has been further applied to other enzymes (e.g. FVIO-KPC and FVIO-GOx), demonstrating the general applicability of this strategy. Since almost all metabolic processes in cells rely on enzymatic catalysis to sustain life, the FVIO-enzyme system developed in this work provides a valuable nanoplatform for spatiotemporally manipulating biochemical reactions, which might pave the way for future remote manipulation of living organisms.
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Affiliation(s)
- Ran Xiong
- College of Chemistry and Materials Science, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Northwest University, 1 Xue Fu Avenue, Xi'an, 710127, Shaanxi, China.
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14
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Albert SK, Hu X, Park SJ. Dynamic Nanostructures from DNA-Coupled Molecules, Polymers, and Nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900504. [PMID: 30985085 DOI: 10.1002/smll.201900504] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/28/2019] [Indexed: 05/20/2023]
Abstract
Dynamic and reconfigurable systems that can sense and react to physical and chemical signals are ubiquitous in nature and are of great interest in diverse areas of science and technology. DNA is a powerful tool for fabricating such smart materials and devices due to its programmable and responsive molecular recognition properties. For the past couple of decades, DNA-based self-assembly is actively explored to fabricate various DNA-organic and DNA-inorganic hybrid nanostructures with high-precision structural control. Building upon past development, researchers have recently begun to design and assemble dynamic nanostructures that can undergo an on-demand transformation in the structure, properties, and motion in response to various external stimuli. In this Review, recent advances in dynamic DNA nanostructures, focusing on hybrid structures fabricated from DNA-conjugated molecules, polymers, and nanoparticles, are introduced, and their potential applications and future perspectives are discussed.
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Affiliation(s)
- Shine K Albert
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, Korea
| | - Xiaole Hu
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, Korea
| | - So-Jung Park
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, Korea
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15
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Wicke W, Ahmadzadeh A, Jamali V, Unterweger H, Alexiou C, Schober R. Magnetic Nanoparticle-Based Molecular Communication in Microfluidic Environments. IEEE Trans Nanobioscience 2019; 18:156-169. [DOI: 10.1109/tnb.2019.2895244] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Cortie MB, Cortie DL, Timchenko V. Heat transfer from nanoparticles for targeted destruction of infectious organisms. Int J Hyperthermia 2019; 34:157-167. [PMID: 29498311 DOI: 10.1080/02656736.2017.1410236] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Whereas the application of optically or magnetically heated nanoparticles to destroy tumours is now well established, the extension of this concept to target pathogens has barely begun. Here we examine the challenge of targeting pathogens by this means and, in particular, explore the issues of power density and heat transfer. Depending on the rate of heating, either hyperthermia or thermoablation may occur. This division of the field is fundamental and implies very different sources of excitation and heat transfer for the two modes, and different strategies for their clinical application. Heating by isolated nanoparticles and by agglomerates of nanoparticles is compared: hyperthermia is much more readily achieved with agglomerates and for large target volumes, a factor which favours magnetic excitation and moderate power densities. In contrast, destruction of planktonic pathogens is best achieved by localised thermoablation and very high power density, a scenario that is best delivered by pulsed optical excitation.
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Affiliation(s)
- Michael B Cortie
- a School of Mathematical and Physical Sciences , University of Technology Sydney , Sydney , Australia
| | - David L Cortie
- b The Institute for Superconducting and Electronic Materials , University of Wollongong , Wollongong , NSW , Australia
| | - Victoria Timchenko
- c School of Mechanical and Manufacturing Engineering , University of New South Wales , Sydney , Australia
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17
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Amini SM. Gold nanostructures absorption capacities of various energy forms for thermal therapy applications. J Therm Biol 2018; 79:81-84. [PMID: 30612690 DOI: 10.1016/j.jtherbio.2018.12.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/04/2018] [Accepted: 12/09/2018] [Indexed: 02/06/2023]
Abstract
This mini-review has investigated the recent progress regarding gold nanostructures capacities of energy absorption for thermal therapy applications. Unselective thermal therapy of malignant and normal tissues could lead to irreversible damage to healthy tissues without effective treatment on target malignant tissues. In recent years, there has been a considerable progress in the field of cancer thermal therapy for treating target malignant tissues using nanostructures. Due to the remarkable physical properties of the gold nanoparticle, it has been considered as an exceptional element for thermal therapy techniques. Different types of gold nanoparticles have been used as energy absorbent for thermal therapy applications under several types of energy exposures. Electromagnetic, ultrasound, electric and magnetic field are examples for these energy sources. Well-known plasmonic photothermal therapy which applies electromagnetic radiation is under clinical investigation for the treatment of various medical conditions. However, there are many other techniques in this regard which should be explored.
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Affiliation(s)
- Seyed Mohammad Amini
- Radiation Biology Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran; Medical Nanotechnology Department, School of Advanced Technologies in Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran.
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18
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Gold nanoparticles-enhanced ion-transmission mass spectrometry for highly sensitive detection of chemical warfare agent simulants. Talanta 2018; 190:403-409. [PMID: 30172526 DOI: 10.1016/j.talanta.2018.08.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 07/31/2018] [Accepted: 08/05/2018] [Indexed: 01/01/2023]
Abstract
Gold nanoparticles (AuNPs)-embedded paper was coupled with ion-transmission mass spectrometry (MS) to enable the highly sensitive detection of chemical warfare agent (CWA) simulants in solutions. With the assistance of a low-temperature plasma (LTP) probe, we found that AuNPs were capable to enhance the ionization efficiencies of target analytes, with MS signal intensities surprisingly undergone an 800-fold increase under optimized conditions. The interaction between AuNPs and the radiofrequency electromagnetic field was believed to promote the desorption/ionization process, resulting in the unusual signal enhancement phenomenon. Based on this finding, we established a method for the rapid analysis of two simulants of nerve agents, dimethyl methylphosphonate (DMMP) and diisopropyl methylphosphonate (DIMP), with a dynamic range from 0.5 ng/mL to 100 ng/mL and detection limits of 0.1 ng/mL and 0.3 ng/mL, respectively. As sample pretreatments have been eliminated, the developed strategy is particularly promising for the on-site detection of CWAs considering its simple and rapid analytical workflow.
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Alvarsson A, Stanley SA. Remote control of glucose-sensing neurons to analyze glucose metabolism. Am J Physiol Endocrinol Metab 2018; 315:E327-E339. [PMID: 29812985 PMCID: PMC6171010 DOI: 10.1152/ajpendo.00469.2017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 04/25/2018] [Accepted: 05/23/2018] [Indexed: 12/13/2022]
Abstract
The central nervous system relies on a continual supply of glucose, and must be able to detect glucose levels and regulate peripheral organ functions to ensure that its energy requirements are met. Specialized glucose-sensing neurons, first described half a century ago, use glucose as a signal and modulate their firing rates as glucose levels change. Glucose-excited neurons are activated by increasing glucose concentrations, while glucose-inhibited neurons increase their firing rate as glucose concentrations fall and decrease their firing rate as glucose concentrations rise. Glucose-sensing neurons are present in multiple brain regions and are highly expressed in hypothalamic regions, where they are involved in functions related to glucose homeostasis. However, the roles of glucose-sensing neurons in healthy and disease states remain poorly understood. Technologies that can rapidly and reversibly activate or inhibit defined neural populations provide invaluable tools to investigate how specific neural populations regulate metabolism and other physiological roles. Optogenetics has high temporal and spatial resolutions, requires implants for neural stimulation, and is suitable for modulating local neural populations. Chemogenetics, which requires injection of a synthetic ligand, can target both local and widespread populations. Radio- and magnetogenetics offer rapid neural activation in localized or widespread neural populations without the need for implants or injections. These tools will allow us to better understand glucose-sensing neurons and their metabolism-regulating circuits.
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Affiliation(s)
- Alexandra Alvarsson
- Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai , New York, New York
| | - Sarah A Stanley
- Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai , New York, New York
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai , New York, New York
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20
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Placido T, Tognaccini L, Howes BD, Montrone A, Laquintana V, Comparelli R, Curri ML, Smulevich G, Agostiano A. Surface Engineering of Gold Nanorods for Cytochrome c Bioconjugation: An Effective Strategy To Preserve the Protein Structure. ACS OMEGA 2018; 3:4959-4967. [PMID: 30221229 PMCID: PMC6130780 DOI: 10.1021/acsomega.8b00719] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 04/26/2018] [Indexed: 06/08/2023]
Abstract
The surface of gold nanorods (Au NRs) has been appropriately engineered to achieve a suitable interface for bioconjugation with horse heart cytochrome c (HCc). HCc, an extensively studied and well-characterized protein, represents an ideal model for nanoparticle (NP)-protein conjugation studies because of its small size, high stability, and commercial availability. Here, the native state of the protein has been demonstrated for the first time, by means of Raman spectroscopy, to be retained upon conjugation with the anisotropic Au nanostructures, thus validating the proposed protocol as specifically suited to mostly preserve the plasmonic properties of the NRs and to retain the structure of the protein. The successful creation of such bioconjugates with the retention of the protein structure and function along with the preservation of the NP properties represents a challenging but essential task, as it provides the only way to access functional hybrid systems with potential applications in biotechnology, medicine, and catalysis. In this perspective, the organic capping surrounding the Au NRs plays a key role, as it represents the functional interface for the conjugation step. Cetyltrimethylammonium bromide-coated Au NRs, prepared by using a seed-mediated synthetic route, have been wrapped with polyacrylic acid (PAA) by means of electrostatic interactions following a layer-by-layer approach. The resulting water-dispersible negatively charged AuNRs@PAA NPs have then been electrostatically bound to the positively charged HCc. The bioconjugation procedure has been thoroughly monitored by the combined analysis of UV-vis absorption, resonance Raman and Fourier transform infrared spectroscopies, transmission electron microscopy microscopy, and ζ-potential, which verified the successful conjugation of the protein to the nanorods.
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Affiliation(s)
- Tiziana Placido
- CNR-IPCF
Istituto per I Processi Chimico-Fisici, S.S. Bari, c/o Dip. Chimica, Via Orabona 4, 70126 Bari, Italy
| | - Lorenzo Tognaccini
- Dipartimento
di Chimica “Ugo Schiff”, Università
di Firenze, Via della
Lastruccia 3-13, Sesto Fiorentino, 50019 Florence, Italy
| | - Barry D. Howes
- Dipartimento
di Chimica “Ugo Schiff”, Università
di Firenze, Via della
Lastruccia 3-13, Sesto Fiorentino, 50019 Florence, Italy
| | - Alessandro Montrone
- Università
degli Studi di Bari—Dip. di Chimica, Via Orabona 4, 70126 Bari, Italy
| | - Valentino Laquintana
- Dipartimento
di Farmacia—Scienze del Farmaco, Università degli Studi di Bari, Via Orabona 4, 70126 Bari, Italy
| | - Roberto Comparelli
- CNR-IPCF
Istituto per I Processi Chimico-Fisici, S.S. Bari, c/o Dip. Chimica, Via Orabona 4, 70126 Bari, Italy
| | - M. Lucia Curri
- CNR-IPCF
Istituto per I Processi Chimico-Fisici, S.S. Bari, c/o Dip. Chimica, Via Orabona 4, 70126 Bari, Italy
| | - Giulietta Smulevich
- Dipartimento
di Chimica “Ugo Schiff”, Università
di Firenze, Via della
Lastruccia 3-13, Sesto Fiorentino, 50019 Florence, Italy
| | - Angela Agostiano
- CNR-IPCF
Istituto per I Processi Chimico-Fisici, S.S. Bari, c/o Dip. Chimica, Via Orabona 4, 70126 Bari, Italy
- Università
degli Studi di Bari—Dip. di Chimica, Via Orabona 4, 70126 Bari, Italy
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21
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Collins CB, Tofanelli MA, Noblitt SD, Ackerson CJ. Electrophoretic Mechanism of Au 25(SR) 18 Heating in Radiofrequency Fields. J Phys Chem Lett 2018; 9:1516-1521. [PMID: 29521094 PMCID: PMC5886805 DOI: 10.1021/acs.jpclett.8b00327] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Gold nanoparticles in radiofrequency (RF) fields have been observed to heat. There is some debate over the mechanism of heating. Au25(SR)18 in RF is studied for the mechanistic insights obtainable from precise synthetic control over exact charge, size, and spin for this nanoparticle. An electrophoretic mechanism can adequately account for the observed heat. This study adds a new level of understanding to gold particle heating experiments, allowing for the first time a conclusive connection between theoretical and experimentally observed heating rates.
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Affiliation(s)
- Christian B. Collins
- Chemistry, Colorado State University, 1847 Campus Delivery, Fort Collins, CO 80523 (USA)
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22
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Park SI, Chung SH, Kim HC, Lee SG, Lee SJ, Kim H, Kim H, Jeong SW. Prolonged heating of Fe3O4–Au hybrid nanoparticles in a radiofrequency solenoid coil. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2017.11.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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Cifuentes-Rius A, Ivask A, Das S, Penya-Auladell N, Fabregas L, Fletcher NL, Houston ZH, Thurecht KJ, Voelcker NH. Gold Nanocluster-Mediated Cellular Death under Electromagnetic Radiation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:41159-41167. [PMID: 29116739 DOI: 10.1021/acsami.7b13100] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Gold nanoclusters (Au NCs) have become a promising nanomaterial for cancer therapy because of their biocompatibility and fluorescent properties. In this study, the effect of ultrasmall protein-stabilized 2 nm Au NCs on six types of mammalian cells (fibroblasts, B-lymphocytes, glioblastoma, neuroblastoma, and two types of prostate cancer cells) under electromagnetic radiation is investigated. Cellular association of Au NCs in vitro is concentration-dependent, and Au NCs have low intrinsic toxicity. However, when Au NC-incubated cells are exposed to a 1 GHz electromagnetic field (microwave radiation), cell viability significantly decreases, thus demonstrating that Au NCs exhibit specific microwave-dependent cytotoxicity, likely resulting from localized heating. Upon i.v. injection in mice, Au NCs are still present at 24 h post administration. Considering the specific microwave-dependent cytotoxicity and low intrinsic toxicity, our work suggests the potential of Au NCs as effective and safe nanomedicines for cancer therapy.
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Affiliation(s)
- Anna Cifuentes-Rius
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes Campus , Mawson Lakes Boulevard, Mawson Lakes, SA 5095, Australia
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus , 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Angela Ivask
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes Campus , Mawson Lakes Boulevard, Mawson Lakes, SA 5095, Australia
| | - Shreya Das
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes Campus , Mawson Lakes Boulevard, Mawson Lakes, SA 5095, Australia
| | - Nuria Penya-Auladell
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes Campus , Mawson Lakes Boulevard, Mawson Lakes, SA 5095, Australia
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus , 381 Royal Parade, Parkville, VIC 3052, Australia
- Grup d'Enginyeria de Materials (GEMAT), Institut Quimic de Sarria, Universitat Ramon Llull , Via Augusta 390, Barcelona 08022, Spain
| | - Laura Fabregas
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus , 381 Royal Parade, Parkville, VIC 3052, Australia
- Grup d'Enginyeria de Materials (GEMAT), Institut Quimic de Sarria, Universitat Ramon Llull , Via Augusta 390, Barcelona 08022, Spain
| | - Nicholas L Fletcher
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Centre for Advanced Imaging (CAI), The University of Queensland , Building 57, Research Road, St Lucia, QLD 4072, Australia
| | - Zachary H Houston
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Centre for Advanced Imaging (CAI), The University of Queensland , Building 57, Research Road, St Lucia, QLD 4072, Australia
| | - Kristofer J Thurecht
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Centre for Advanced Imaging (CAI), The University of Queensland , Building 57, Research Road, St Lucia, QLD 4072, Australia
| | - Nicolas H Voelcker
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes Campus , Mawson Lakes Boulevard, Mawson Lakes, SA 5095, Australia
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus , 381 Royal Parade, Parkville, VIC 3052, Australia
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24
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Devarakonda K, Stanley S. Investigating metabolic regulation using targeted neuromodulation. Ann N Y Acad Sci 2017; 1411:83-95. [PMID: 29106710 DOI: 10.1111/nyas.13468] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 08/11/2017] [Accepted: 08/18/2017] [Indexed: 01/13/2023]
Abstract
The central nervous system (CNS) plays a vital role in regulating energy balance and metabolism. Over the last 50 years, studies in animal models have allowed us to identify critical CNS regions involved in these processes and even crucial cell populations. Now, techniques for genetically and anatomically targeted manipulation of specific neural populations using light (optogenetic), ligands (chemogenetic), or magnetic fields (radiogenetic/magnetogenetic) allow detailed investigation of circuits involved in metabolic regulation. In this review, we provide a brief overview of recent studies using light- and magnetic field-regulated neural activity to investigate the neural circuits contributing to metabolic control.
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Affiliation(s)
- Kavya Devarakonda
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Sarah Stanley
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York.,Diabetes, Obesity and Metabolism Institute, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
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25
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Pandey HD, Leitner DM. Influence of thermalization on thermal conduction through molecular junctions: Computational study of PEG oligomers. J Chem Phys 2017; 147:084701. [DOI: 10.1063/1.4999411] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Affiliation(s)
- Hari Datt Pandey
- Department of Chemistry and Chemical Physics Program, University of Nevada, Reno, Nevada 89557, USA
| | - David M. Leitner
- Department of Chemistry and Chemical Physics Program, University of Nevada, Reno, Nevada 89557, USA
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26
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Cifuentes-Rius A, Ivask A, Sporleder E, Kaur I, Assan Y, Rao S, Warther D, Prestidge CA, Durand JO, Voelcker NH. Dual-Action Cancer Therapy with Targeted Porous Silicon Nanovectors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1701201. [PMID: 28570785 DOI: 10.1002/smll.201701201] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Indexed: 06/07/2023]
Abstract
There is a pressing need to develop more effective therapeutics to fight cancer. An idyllic chemotherapeutic is expected to overcome drug resistance of tumors and minimize harmful side effects to healthy tissues. Antibody-functionalized porous silicon nanoparticles loaded with a combination of chemotherapy drug and gold nanoclusters (AuNCs) are developed. These nanocarriers are observed to selectively deliver both payloads, the chemotherapy drug and AuNCs, to human B cells. The accumulation of AuNCs to target cells and subsequent exposure to an external electromagnetic field in the microwave region render them more susceptible to the codelivered drug. This approach represents a targeted two-stage delivery nanocarrier that benefits from a dual therapeutic action that results in enhanced cytotoxicity.
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Affiliation(s)
- Anna Cifuentes-Rius
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes, SA, 5095, Australia
| | - Angela Ivask
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes, SA, 5095, Australia
| | - Ester Sporleder
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes, SA, 5095, Australia
| | - Ishdeep Kaur
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes, SA, 5095, Australia
| | - Yasmin Assan
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes, SA, 5095, Australia
| | - Shasha Rao
- School of Pharmacy and Medical Sciences, University of South Australia, City East Campus, Adelaide, SA, 5000, Australia
| | - David Warther
- Institut Charles Gerhardt Montpellier, UMR-5253 CNRS-UM-ENSCM-UM1cc, 1701, Place Eugène Bataillon, F-34095, Montpelliercedex 05, France
| | - Clive A Prestidge
- School of Pharmacy and Medical Sciences, University of South Australia, City East Campus, Adelaide, SA, 5000, Australia
| | - Jean-Olivier Durand
- Institut Charles Gerhardt Montpellier, UMR-5253 CNRS-UM-ENSCM-UM1cc, 1701, Place Eugène Bataillon, F-34095, Montpelliercedex 05, France
| | - Nicolas H Voelcker
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes, SA, 5095, Australia
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27
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Anufriev R, Ramiere A, Maire J, Nomura M. Heat guiding and focusing using ballistic phonon transport in phononic nanostructures. Nat Commun 2017; 8:15505. [PMID: 28516909 PMCID: PMC5454390 DOI: 10.1038/ncomms15505] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 04/03/2017] [Indexed: 12/20/2022] Open
Abstract
Unlike classical heat diffusion at macroscale, nanoscale heat conduction can occur without energy dissipation because phonons can ballistically travel in straight lines for hundreds of nanometres. Nevertheless, despite recent experimental evidence of such ballistic phonon transport, control over its directionality, and thus its practical use, remains a challenge, as the directions of individual phonons are chaotic. Here, we show a method to control the directionality of ballistic phonon transport using silicon membranes with arrays of holes. First, we demonstrate that the arrays of holes form fluxes of phonons oriented in the same direction. Next, we use these nanostructures as directional sources of ballistic phonons and couple the emitted phonons into nanowires. Finally, we introduce thermal lens nanostructures, in which the emitted phonons converge at the focal point, thus focusing heat into a spot of a few hundred nanometres. These results motivate the concept of ray-like heat manipulations at the nanoscale.
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Affiliation(s)
- Roman Anufriev
- Institute of Industrial Science, the University of Tokyo, Tokyo 153–8505, Japan
| | - Aymeric Ramiere
- Institute of Industrial Science, the University of Tokyo, Tokyo 153–8505, Japan
- Laboratory for Integrated Micro Mechatronic Systems/National Center for Scientific Research-Institute of Industrial Science (LIMMS/CNRS-IIS), the University of Tokyo, Tokyo 153–8505, Japan
| | - Jeremie Maire
- Institute of Industrial Science, the University of Tokyo, Tokyo 153–8505, Japan
| | - Masahiro Nomura
- Institute of Industrial Science, the University of Tokyo, Tokyo 153–8505, Japan
- PRESTO, Japan Science and Technology Agency, Saitama 332–0012, Japan
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28
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Gold nanoparticles, radiations and the immune system: Current insights into the physical mechanisms and the biological interactions of this new alliance towards cancer therapy. Pharmacol Ther 2017; 178:1-17. [PMID: 28322970 DOI: 10.1016/j.pharmthera.2017.03.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Considering both cancer's serious impact on public health and the side effects of cancer treatments, strategies towards targeted cancer therapy have lately gained considerable interest. Employment of gold nanoparticles (GNPs), in combination with ionizing and non-ionizing radiations, has been shown to improve the effect of radiation treatment significantly. GNPs, as high-Z particles, possess the ability to absorb ionizing radiation and enhance the deposited dose within the targeted tumors. Furthermore, they can convert non-ionizing radiation into heat, due to plasmon resonance, leading to hyperthermic damage to cancer cells. These observations, also supported by experimental evidence both in vitro and in vivo systems, reveal the capacity of GNPs to act as radiosensitizers for different types of radiation. In addition, they can be chemically modified to selectively target tumors, which renders them suitable for future cancer treatment therapies. Herein, a current review of the latest data on the physical properties of GNPs and their effects on GNP circulation time, biodistribution and clearance, as well as their interactions with plasma proteins and the immune system, is presented. Emphasis is also given with an in depth discussion on the underlying physical and biological mechanisms of radiosensitization. Furthermore, simulation data are provided on the use of GNPs in photothermal therapy upon non-ionizing laser irradiation treatment. Finally, the results obtained from the application of GNPs at clinical trials and pre-clinical experiments in vivo are reported.
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29
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Arnon S, Dahan N, Koren A, Radiano O, Ronen M, Yannay T, Giron J, Ben-Ami L, Amir Y, Hel-Or Y, Friedman D, Bachelet I. Thought-Controlled Nanoscale Robots in a Living Host. PLoS One 2016; 11:e0161227. [PMID: 27525806 PMCID: PMC4985062 DOI: 10.1371/journal.pone.0161227] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 07/05/2016] [Indexed: 11/18/2022] Open
Abstract
We report a new type of brain-machine interface enabling a human operator to control nanometer-size robots inside a living animal by brain activity. Recorded EEG patterns are recognized online by an algorithm, which in turn controls the state of an electromagnetic field. The field induces the local heating of billions of mechanically-actuating DNA origami robots tethered to metal nanoparticles, leading to their reversible activation and subsequent exposure of a bioactive payload. As a proof of principle we demonstrate activation of DNA robots to cause a cellular effect inside the insect Blaberus discoidalis, by a cognitively straining task. This technology enables the online switching of a bioactive molecule on and off in response to a subject’s cognitive state, with potential implications to therapeutic control in disorders such as schizophrenia, depression, and attention deficits, which are among the most challenging conditions to diagnose and treat.
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Affiliation(s)
- Shachar Arnon
- Efi Arazi School of Computer Science, The Interdisciplinary Center, Herzliya, Israel
| | - Nir Dahan
- Efi Arazi School of Computer Science, The Interdisciplinary Center, Herzliya, Israel
| | - Amir Koren
- Efi Arazi School of Computer Science, The Interdisciplinary Center, Herzliya, Israel
| | - Oz Radiano
- Efi Arazi School of Computer Science, The Interdisciplinary Center, Herzliya, Israel
| | - Matan Ronen
- Efi Arazi School of Computer Science, The Interdisciplinary Center, Herzliya, Israel
| | - Tal Yannay
- Efi Arazi School of Computer Science, The Interdisciplinary Center, Herzliya, Israel
| | - Jonathan Giron
- Advanced Virtuality Lab, Sammy Ofer School of Communications, The Interdisciplinary Center, Herzliya, Israel.,Faculty of Life Sciences and the Nano-Center, Bar Ilan University, Ramat Gan, Israel
| | - Lee Ben-Ami
- Faculty of Life Sciences and the Nano-Center, Bar Ilan University, Ramat Gan, Israel
| | - Yaniv Amir
- Faculty of Life Sciences and the Nano-Center, Bar Ilan University, Ramat Gan, Israel
| | - Yacov Hel-Or
- Efi Arazi School of Computer Science, The Interdisciplinary Center, Herzliya, Israel
| | - Doron Friedman
- Advanced Virtuality Lab, Sammy Ofer School of Communications, The Interdisciplinary Center, Herzliya, Israel
| | - Ido Bachelet
- Faculty of Life Sciences and the Nano-Center, Bar Ilan University, Ramat Gan, Israel
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30
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Quérard J, Le Saux T, Gautier A, Alcor D, Croquette V, Lemarchand A, Gosse C, Jullien L. Kinetics of Reactive Modules Adds Discriminative Dimensions for Selective Cell Imaging. Chemphyschem 2016; 17:1396-413. [PMID: 26833808 DOI: 10.1002/cphc.201500987] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Indexed: 11/07/2022]
Abstract
Living cells are chemical mixtures of exceptional interest and significance, whose investigation requires the development of powerful analytical tools fulfilling the demanding constraints resulting from their singular features. In particular, multiplexed observation of a large number of molecular targets with high spatiotemporal resolution appears highly desirable. One attractive road to address this analytical challenge relies on engaging the targets in reactions and exploiting the rich kinetic signature of the resulting reactive module, which originates from its topology and its rate constants. This review explores the various facets of this promising strategy. We first emphasize the singularity of the content of a living cell as a chemical mixture and suggest that its multiplexed observation is significant and timely. Then, we show that exploiting the kinetics of analytical processes is relevant to selectively detect a given analyte: upon perturbing the system, the kinetic window associated to response read-out has to be matched with that of the targeted reactive module. Eventually, we introduce the state-of-the-art of cell imaging exploiting protocols based on reaction kinetics and draw some promising perspectives.
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Affiliation(s)
- Jérôme Quérard
- Ecole Normale Supérieure-PSL Research University; Département de Chimie; 24, rue Lhomond F-75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06, PASTEUR; F-75005 Paris France
- CNRS, UMR 8640 PASTEUR; F-75005 Paris France
| | - Thomas Le Saux
- Ecole Normale Supérieure-PSL Research University; Département de Chimie; 24, rue Lhomond F-75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06, PASTEUR; F-75005 Paris France
- CNRS, UMR 8640 PASTEUR; F-75005 Paris France
| | - Arnaud Gautier
- Ecole Normale Supérieure-PSL Research University; Département de Chimie; 24, rue Lhomond F-75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06, PASTEUR; F-75005 Paris France
- CNRS, UMR 8640 PASTEUR; F-75005 Paris France
| | - Damien Alcor
- INSERM U1065, C3M; 151 route Saint Antoine de Ginestière, BP 2 3194 F-06204 Nice Cedex 3 France
| | - Vincent Croquette
- Ecole Normale Supérieure; Département de Physique and Département de Biologie, Laboratoire de Physique Statistique UMR CNRS-ENS 8550; 24 rue Lhomond F-75005 Paris France
| | - Annie Lemarchand
- Sorbonne Universités; UPMC Univ Paris 06, Laboratoire de Physique Théorique de la Matière Condensée; 4 place Jussieu, case courrier 121 75252 Paris cedex 05 France
- CNRS, UMR 7600 LPTMC; 75005 Paris France
| | - Charlie Gosse
- Laboratoire de Photonique et de Nanostructures, LPN-CNRS; route de Nozay 91460 Marcoussis France
| | - Ludovic Jullien
- Ecole Normale Supérieure-PSL Research University; Département de Chimie; 24, rue Lhomond F-75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06, PASTEUR; F-75005 Paris France
- CNRS, UMR 8640 PASTEUR; F-75005 Paris France
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31
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Lawrence J, Emrick T. Pentafluorophenyl Ester-Functionalized Nanoparticles as a Versatile Platform for Selective and Covalent Inter-nanoparticle Coupling. ACS APPLIED MATERIALS & INTERFACES 2016; 8:2393-2398. [PMID: 26730845 DOI: 10.1021/acsami.5b11550] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Preparing chemically selective nanoparticle (NP) building blocks to make robust structures from different NP compositions often requires complex hetero-bifunctional ligand pairs that have limited scalability and versatility. Here we describe pentafluorophenyl ester-functionalized nanoparticles (PFP-NPs) as versatile building blocks for covalent inter-NP coupling. This approach allows for a rapid and dense grafting of PFP-functionalized Au NPs onto several types of amine-functionalized NPs (metals, semiconductors, and insulators) and selective identification of amine-functionalized quantum dots (QDs) in solution. Such simple yet efficient inter-NP reactions suggest the suitability of PFP-NPs as a versatile functional platform for numerous NP-based applications.
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Affiliation(s)
- Jimmy Lawrence
- Department of Polymer Science and Engineering, University of Massachusetts , 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Todd Emrick
- Department of Polymer Science and Engineering, University of Massachusetts , 120 Governors Drive, Amherst, Massachusetts 01003, United States
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Levine EV, Burns MM, Golovchenko JA. Nanoscale dynamics of Joule heating and bubble nucleation in a solid-state nanopore. Phys Rev E 2016; 93:013124. [PMID: 26871171 DOI: 10.1103/physreve.93.013124] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Indexed: 11/07/2022]
Abstract
We present a mathematical model for Joule heating of an electrolytic solution in a nanopore. The model couples the electrical and thermal dynamics responsible for rapid and extreme superheating of the electrolyte within the nanopore. The model is implemented numerically with a finite element calculation, yielding a time and spatially resolved temperature distribution in the nanopore region. Temperatures near the thermodynamic limit of superheat are predicted to be attained just before the explosive nucleation of a vapor bubble is observed experimentally. Knowledge of this temperature distribution enables the evaluation of related phenomena including bubble nucleation kinetics, relaxation oscillation, and bubble dynamics.
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Affiliation(s)
- Edlyn V Levine
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Michael M Burns
- The Rowland Institute at Harvard, Cambridge, Massachusetts 02142, USA
| | - Jene A Golovchenko
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.,Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
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Perspectives of TRPV1 Function on the Neurogenesis and Neural Plasticity. Neural Plast 2016; 2016:1568145. [PMID: 26881090 PMCID: PMC4736371 DOI: 10.1155/2016/1568145] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 12/09/2015] [Indexed: 01/01/2023] Open
Abstract
The development of new strategies to renew and repair neuronal networks using neural plasticity induced by stem cell graft could enable new therapies to cure diseases that were considered lethal until now. In adequate microenvironment a neuronal progenitor must receive molecular signal of a specific cellular context to determine fate, differentiation, and location. TRPV1, a nonselective calcium channel, is expressed in neurogenic regions of the brain like the subgranular zone of the hippocampal dentate gyrus and the telencephalic subventricular zone, being valuable for neural differentiation and neural plasticity. Current data show that TRPV1 is involved in several neuronal functions as cytoskeleton dynamics, cell migration, survival, and regeneration of injured neurons, incorporating several stimuli in neurogenesis and network integration. The function of TRPV1 in the brain is under intensive investigation, due to multiple places where it has been detected and its sensitivity for different chemical and physical agonists, and a new role of TRPV1 in brain function is now emerging as a molecular tool for survival and control of neural stem cells.
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Vasani RB, Janardanan N, Prieto-Simón B, Cifuentes-Rius A, Bradley SJ, Moore E, Kraus T, Voelcker NH. Microwave Heating of Poly(N-isopropylacrylamide)-Conjugated Gold Nanoparticles for Temperature-Controlled Display of Concanavalin A. ACS APPLIED MATERIALS & INTERFACES 2015; 7:27755-27764. [PMID: 26629977 DOI: 10.1021/acsami.5b08765] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We demonstrate microwave-induced heating of gold nanoparticles and nanorods. An appreciably higher and concentration-dependent microwave-induced heating rate was observed with aqueous dispersions of the nanomaterials as opposed to pure water and other controls. Grafted with the thermoresponsive polymer poly(N-isopropylacrylamide), these gold nanomaterials react to microwave-induced heating with a conformational change in the polymer shell, leading to particle aggregation. We subsequently covalently immobilize concanavalin A (Con A) on the thermoresponsive gold nanoparticles. Con A is a bioreceptor commonly used in bacterial sensors because of its affinity for carbohydrates on bacterial cell surfaces. The microwave-induced thermal transitions of the polymer reversibly switch on and off the display of Con A on the particle surface and hence the interactions of the nanomaterials with carbohydrate-functionalized surfaces. This effect was determined using linear sweep voltammetry on a methyl-α-d-mannopyranoside-functionalized electrode.
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Affiliation(s)
- Roshan B Vasani
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia , Mawson Lakes, South Australia 5095, Australia
| | - Nayana Janardanan
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia , Mawson Lakes, South Australia 5095, Australia
| | - Beatriz Prieto-Simón
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia , Mawson Lakes, South Australia 5095, Australia
| | - Anna Cifuentes-Rius
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia , Mawson Lakes, South Australia 5095, Australia
| | - Siobhan J Bradley
- Future Industries Institute, University of South Australia , Mawson Lakes, South Australia 5095, Australia
| | - Eli Moore
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia , Mawson Lakes, South Australia 5095, Australia
| | - Tobias Kraus
- INM-Leibniz Institute for New Materials , Campus D2 2, Saarbruecken, Saarland 66123, Germany
| | - Nicolas H Voelcker
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia , Mawson Lakes, South Australia 5095, Australia
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Jonoska N, Seeman NC. Molecular ping-pong Game of Life on a two-dimensional DNA origami array. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2015; 373:rsta.2014.0215. [PMID: 26078341 PMCID: PMC7398061 DOI: 10.1098/rsta.2014.0215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/05/2015] [Indexed: 06/04/2023]
Abstract
We propose a design for programmed molecular interactions that continuously change molecular arrangements in a predesigned manner. We introduce a model where environmental control through laser illumination allows platform attachment/detachment oscillations between two floating molecular species. The platform is a two-dimensional DNA origami array of tiles decorated with strands that provide both, the floating molecular tiles to attach and to pass communicating signals to neighbouring array tiles. In particular, we show how algorithmic molecular interactions can control cyclic molecular arrangements by exhibiting a system that can simulate the dynamics similar to two-dimensional cellular automata on a DNA origami array platform.
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Affiliation(s)
- N Jonoska
- Department of Mathematics and Statistics, University of South Florida, Tampa, FL, USA
| | - N C Seeman
- Department of Chemistry, New York University, New York, NY, USA
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Kabb CP, Carmean RN, Sumerlin BS. Probing the surface-localized hyperthermia of gold nanoparticles in a microwave field using polymeric thermometers. Chem Sci 2015; 6:5662-5669. [PMID: 29861901 PMCID: PMC5949850 DOI: 10.1039/c5sc01535a] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 07/03/2015] [Indexed: 11/21/2022] Open
Abstract
Gold nanoparticles decorated with “polymeric thermometers,” consisting of a polymeric spacer, thermally-labile azo linker, and fluorescent tag, were used to quantify the extent of localized hyperthermia under microwave irradiation.
The surface-localized hyperthermia of gold nanoparticles under microwave irradiation was examined. Gold nanoparticles with a hydrodynamic diameter of ∼6 nm stabilized by polymeric “thermometers” were used to gather information on the extent of heating as well as its spatial confinements. Reversible addition–fragmentation chain transfer polymerization was employed to synthesize well-defined, functional polymers of predetermined molecular weights, allowing for estimation of the distance between the nanoparticle surface and the polymer chain end. The polymers were conjugated with a fluorescent dye separated by a thermally-labile azo linkage, and these polymeric ligands were bound to gold nanoparticles via gold–thiolate bonds. Conventional heating experiments elucidated the relationship between temperature and the extent of dye release from the gold nanoparticle using fluorescence spectroscopy. The local temperature increase experienced under microwave irradiation was calculated using the same methodology. This approach indicated the temperature near the surface of the nanoparticle was nearly 70 °C higher than the bulk solution temperature, but decreased rapidly with distance, with no noticeable temperature increase when the azo linkage was approximately 2 nm away.
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Affiliation(s)
- Christopher P Kabb
- George & Josephine Butler Polymer Research Laboratory , Center for Macromolecular Science & Engineering , Department of Chemistry , University of Florida , PO Box 117200 , Gainesville , FL 32611-7200 , USA .
| | - R Nicholas Carmean
- George & Josephine Butler Polymer Research Laboratory , Center for Macromolecular Science & Engineering , Department of Chemistry , University of Florida , PO Box 117200 , Gainesville , FL 32611-7200 , USA .
| | - Brent S Sumerlin
- George & Josephine Butler Polymer Research Laboratory , Center for Macromolecular Science & Engineering , Department of Chemistry , University of Florida , PO Box 117200 , Gainesville , FL 32611-7200 , USA .
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Teboul V. Stimuli Thresholds for Isomerization-Induced Molecular Motions in Azobenzene-Containing Materials. J Phys Chem B 2015; 119:3854-9. [DOI: 10.1021/jp511494v] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- V. Teboul
- Laboratoire de Photonique
d’Angers EA 4464, Université d’Angers, Physics Department, 2 Bd Lavoisier, 49045 Angers, France
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38
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Vedova PD, Ilieva M, Zhurbenko V, Mateiu R, Faralli A, Dufva M, Hansen O. Gold nanoparticle-based sensors activated by external radio frequency fields. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:248-256. [PMID: 25180655 DOI: 10.1002/smll.201401187] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 07/04/2014] [Indexed: 06/03/2023]
Abstract
A novel molecular beacon (a nanomachine) is constructed that can be actuated by a radio frequency (RF) field. The nanomachine consists of the following elements arranged in molecular beacon configuration: a gold nanoparticle that acts both as quencher for fluorescence and a localized heat source; one reporter fluorochrome, and; a piece of DNA as a hinge and recognition sequence. When the nanomachines are irradiated with a 3 GHz RF field the fluorescence signal increases due to melting of the stem of the molecular beacon. A control experiment, performed using molecular beacons synthesized by substituting the gold nanoparticle by an organic quencher, shows no increase in fluorescence signal when exposed to the RF field. It may therefore be concluded that the increased fluorescence for the gold nanoparticle-conjugated nanomachines is not due to bulk heating of the solution, but is caused by the presence of the gold nanoparticles and their interaction with the RF field; however, existing models for heating of gold nanoparticles in a RF field are unable to explain the experimental results. Due to the biocompatibility of the construct and RF treatment, the nanomachines may possibly be used inside living cells. In a separate experiment a substantial increase in the dielectric losses can be detected in a RF waveguide setup coupled to a microfluidic channel when gold nanoparticles are added to a low RF loss liquid. This work sheds some light on RF heating of gold nanoparticles, which is a subject of significant controversy in the literature.
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Affiliation(s)
- Paolo Della Vedova
- DTU Nanotech Department of Micro- and Nanotechnology, Technical University of Denmark, Building 345E, DK-2800, Kgs. Lyngby, Denmark
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Wong OA, Compel WS, Ackerson CJ. Combinatorial discovery of cosolvent systems for production of narrow dispersion thiolate-protected gold nanoparticles. ACS COMBINATORIAL SCIENCE 2015; 17:11-8. [PMID: 25459632 PMCID: PMC4294592 DOI: 10.1021/co500072c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
![]()
The effect of aqueous solvent concentration
in the synthesis of
water-soluble thiolate-protected gold nanoparticles (AuNPs) was investigated
for 13 water-miscible solvents and three thiolate ligands (p-mercaptobenzoic acid, thiomalic acid, and glutathione).
The results were analyzed by construction of heat maps that rank each
reaction result for polydispersity. When solvents were organized in
the heat map according to their Dimroth–Reichardt ET parameter (an approximate measure of polarity), two
“hot spots” become apparent that are independent of
the ligand used. We speculate that one hot spot may arise in part
from the metal chelation or coordination ability of solvents that
include diglyme, 1,2-dimethoxyethane, 1,4-dioxane, and tetrahydrofuran.
The second hot spot arises at concentrations of alcohols including
2-propanol and 1-butanol that appear to selectively precipitate a
growing product, presumably stopping its growth at a certain size.
We observe some tightly dispersed products that appear novel. Overall,
this study expands the number of tightly dispersed water-soluble AuNPs
that can be directly synthesized.
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Affiliation(s)
- O. Andrea Wong
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - W. Scott Compel
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Christopher J. Ackerson
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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Abstract
Complexation of biomacromolecules (e.g., nucleic acids, proteins, or viruses) with surfactants containing flexible alkyl tails, followed by dehydration, is shown to be a simple generic method for the production of thermotropic liquid crystals. The anhydrous smectic phases that result exhibit biomacromolecular sublayers intercalated between aliphatic hydrocarbon sublayers at or near room temperature. Both this and low transition temperatures to other phases enable the study and application of thermotropic liquid crystal phase behavior without thermal degradation of the biomolecular components.
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Majouga A, Sokolsky-Papkov M, Kuznetsov A, Lebedev D, Efremova M, Beloglazkina E, Rudakovskaya P, Veselov M, Zyk N, Golovin Y, Klyachko N, Kabanov A. Enzyme-functionalized gold-coated magnetite nanoparticles as novel hybrid nanomaterials: synthesis, purification and control of enzyme function by low-frequency magnetic field. Colloids Surf B Biointerfaces 2014; 125:104-9. [PMID: 25460600 DOI: 10.1016/j.colsurfb.2014.11.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Revised: 11/01/2014] [Accepted: 11/11/2014] [Indexed: 11/27/2022]
Abstract
The possibility of remotely inducing a defined effect on NPs by means of electromagnetic radiation appears attractive. From a practical point of view, this effect opens horizons for remote control of drug release systems, as well as modulation of biochemical functions in cells. Gold-coated magnetite nanoparticles are perfect candidates for such application. Herein, we have successfully synthesized core-shell NPs having magnetite cores and gold shells modified with various sulphur containing ligands and developed a new, simple and robust procedure for the purification of the resulting nanoparticles. The carboxylic groups displayed at the surface of the NPs were utilized for NP conjugation with a model enzyme (ChT). In the present study, we report the effect of the low-frequency AC magnetic field on the catalytic activity of the immobilized ChT. We show that the enzyme activity decreases upon exposure of the NPs to the field.
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Affiliation(s)
- Alexander Majouga
- Laboratory of Chemical Design of Bionanomaterials, Chemistry Department, M.V. Lomonosov Moscow State University, Russian Federation; National University of Science and Technology MISiS, Leninsky Ave, 4, 119049 Moscow, Russian Federation.
| | - Marina Sokolsky-Papkov
- Center for Nanotechnology in Drug Delivery and Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Artem Kuznetsov
- Laboratory of Chemical Design of Bionanomaterials, Chemistry Department, M.V. Lomonosov Moscow State University, Russian Federation
| | - Dmitry Lebedev
- Laboratory of Chemical Design of Bionanomaterials, Chemistry Department, M.V. Lomonosov Moscow State University, Russian Federation
| | - Maria Efremova
- Laboratory of Chemical Design of Bionanomaterials, Chemistry Department, M.V. Lomonosov Moscow State University, Russian Federation
| | - Elena Beloglazkina
- Laboratory of Chemical Design of Bionanomaterials, Chemistry Department, M.V. Lomonosov Moscow State University, Russian Federation
| | - Polina Rudakovskaya
- Laboratory of Chemical Design of Bionanomaterials, Chemistry Department, M.V. Lomonosov Moscow State University, Russian Federation
| | - Maxim Veselov
- Laboratory of Chemical Design of Bionanomaterials, Chemistry Department, M.V. Lomonosov Moscow State University, Russian Federation
| | - Nikolay Zyk
- Laboratory of Chemical Design of Bionanomaterials, Chemistry Department, M.V. Lomonosov Moscow State University, Russian Federation
| | - Yuri Golovin
- Laboratory of Chemical Design of Bionanomaterials, Chemistry Department, M.V. Lomonosov Moscow State University, Russian Federation; R.G. Derzhavin Tambov State University, Russian Federation
| | - Natalia Klyachko
- Laboratory of Chemical Design of Bionanomaterials, Chemistry Department, M.V. Lomonosov Moscow State University, Russian Federation; Center for Nanotechnology in Drug Delivery and Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Alexander Kabanov
- Laboratory of Chemical Design of Bionanomaterials, Chemistry Department, M.V. Lomonosov Moscow State University, Russian Federation; Center for Nanotechnology in Drug Delivery and Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Abstract
We present a critical review of the state of the art of magnetic particle hyperthermia (MPH) as a minimal invasive tumour therapy. Magnetic principles of heating mechanisms are discussed with respect to the optimum choice of nanoparticle properties. In particular, the relation between superparamagnetic and ferrimagnetic single domain nanoparticles is clarified in order to choose the appropriate particle size distribution and the role of particle mobility for the relaxation path is discussed. Knowledge of the effect of particle properties for achieving high specific heating power provides necessary guidelines for development of nanoparticles tailored for tumour therapy. Nanoscale heat transfer processes are discussed with respect to the achievable temperature increase in cancer cells. The need to realize a well-controlled temperature distribution in tumour tissue represents the most serious problem of MPH, at present. Visionary concepts of particle administration, in particular by means of antibody targeting, are far from clinical practice, yet. On the basis of current knowledge of treating cancer by thermal damaging, this article elucidates possibilities, prospects, and challenges for establishment of MPH as a standard medical procedure.
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Affiliation(s)
- Silvio Dutz
- Institute of Biomedical Engineering and Informatics (BMTI), Technische Universität Ilmenau, G-Kirchhoff-Str. 2, D-98693 Ilmenau, Germany. Department of Nano Biophotonics, Institute of Photonic Technology (IPHT), A.-Einstein-Str. 9, D-07745 Jena, Germany
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Loh IY, Cheng J, Tee SR, Efremov A, Wang Z. From bistate molecular switches to self-directed track-walking nanomotors. ACS NANO 2014; 8:10293-10304. [PMID: 25268955 DOI: 10.1021/nn5034983] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Track-walking nanomotors and larger systems integrating these motors are important for wide real-world applications of nanotechnology. However, inventing these nanomotors remains difficult, a sharp contrast to the widespread success of simpler switch-like nanodevices, even though the latter already encompasses basic elements of the former such as engine-like bistate contraction/extension or leg-like controllable binding. This conspicuous gap reflects an impeding bottleneck for the nanomotor development, namely, lack of a modularized construction by which spatially and functionally separable "engines" and "legs" are flexibly assembled into a self-directed motor. Indeed, all track-walking nanomotors reported to date combine the engine and leg functions in the same molecular part, which largely underpins the device-motor gap. Here we propose a general design principle allowing the modularized nanomotor construction from disentangled engine-like and leg-like motifs, and provide an experimental proof of concept by implementing a bipedal DNA nanomotor up to a best working regime of this versatile design principle. The motor uses a light-powered contraction-extension switch to drive a coordinated hand-over-hand directional walking on a DNA track. Systematic fluorescence experiments confirm the motor's directional motion and suggest that the motor possesses two directional biases, one for rear leg dissociation and one for forward leg binding. This study opens a viable route to develop track-walking nanomotors from numerous molecular switches and binding motifs available from nanodevice research and biology.
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Affiliation(s)
- Iong Ying Loh
- Department of Physics, ‡NUS Graduate School for Integrative Sciences and Engineering, §Center for Computational Science and Engineering, National University of Singapore , Singapore 117542
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Ebrahimi S, Akhlaghi Y, Kompany-Zareh M, Rinnan A. Nucleic acid based fluorescent nanothermometers. ACS NANO 2014; 8:10372-10382. [PMID: 25265370 DOI: 10.1021/nn5036944] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Accurate thermometry at micro- and nanoscales is essential in many nanobiotechnological applications. The nanothermometers introduced in this paper are composed of labeled molecular beacons (MBs) comprising gold nanoparticles (AuNPs) on which, depending on application, many MBs of one or more types are immobilized. In this design, three differently labeled MBs with different thermostabilities function as the sensing elements, and AuNPs act as carriers of the MBs and also quenchers of their fluorophores. This flexible design results in a number of nanothermometers with various temperature-sensing ranges. At the lowest temperature, the MBs are in the closed form, where they are quenched. By increasing the temperature, the MBs start to open with respect to their melting points (Tm), and as a result, the fluorescence emission will increase. The temperature resolution of the nanoprobes over a range of 15-60 °C is less than 0.50 °C, which indicates their high sensitivity. Such a good temperature resolution is a result of the specific design of the unusual less stable MBs and also presence of many MBs on AuNPs. The reproducibility and precision of the probes are also satisfactory. The multiplex MB nanoprobe is suitable for thermal imaging by fluorescence microscopy.
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Affiliation(s)
- Sara Ebrahimi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS) , Zanjan, 45137-66731, Iran
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45
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Collins CB, McCoy RS, Ackerson BJ, Collins GJ, Ackerson CJ. Radiofrequency heating pathways for gold nanoparticles. NANOSCALE 2014; 6:8459-72. [PMID: 24962620 PMCID: PMC4624276 DOI: 10.1039/c4nr00464g] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
This feature article reviews the thermal dissipation of nanoscopic gold under radiofrequency (RF) irradiation. It also presents previously unpublished data addressing obscure aspects of this phenomenon. While applications in biology motivated initial investigation of RF heating of gold nanoparticles, recent controversy concerning whether thermal effects can be attributed to nanoscopic gold highlight the need to understand the involved mechanism or mechanisms of heating. Both the nature of the particle and the nature of the RF field influence heating. Aspects of nanoparticle chemistry which may affect thermal dissipation include the hydrodynamic diameter of the particle, the oxidation state and related magnetism of the core, and the chemical nature of the ligand shell. Aspects of RF which may affect thermal dissipation include power, frequency and antenna designs that emphasize relative strength of magnetic or electric fields. These nanoparticle and RF properties are analysed in the context of three heating mechanisms proposed to explain gold nanoparticle heating in an RF field. This article also makes a critical analysis of the existing literature in the context of the nanoparticle preparations, RF structure, and suggested mechanisms in previously reported experiments.
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Affiliation(s)
- C B Collins
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA.
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46
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Bariana M, Aw MS, Moore E, Voelcker NH, Losic D. Radiofrequency-triggered release for on-demand delivery of therapeutics from titania nanotube drug-eluting implants. Nanomedicine (Lond) 2014; 9:1263-75. [DOI: 10.2217/nnm.13.93] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Aim: This study aimed to demonstrate radiofrequency (RF)-triggered release of drugs and drug carriers from drug-eluting implants using gold nanoparticles as energy transducers. Materials & methods: Titanium wire with a titania nanotube layer was used as an implant loaded with indomethacin and micelles (tocopheryl PEG succinate) as a drug and drug carrier model. RF signals were generated from a customized RF generator to trigger in vitro release. Results & discussion: Within 2.5 h, 18 mg (92%) of loaded drug and 14 mg (68%) of loaded drug carriers were released using short RF exposure (5 min), compared with 5 mg (31%) of drug and 2 mg (11%) of drug carriers without a RF trigger. Gold nanoparticles can effectively function as RF energy transducers inside titania nanotubes for rapid release of therapeutics at arbitrary times. Conclusion: The results of this study show that RF is a promising strategy for triggered release from implantable drug delivery systems where on-demand delivery of therapeutics is required. Original submitted 19 November 2012; Revised submitted 1 April 2013
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Affiliation(s)
- Manpreet Bariana
- School of Chemical Engineering, The University of Adelaide, Engineering North Building, SA 5005, Australia
| | - Moom Sinn Aw
- School of Chemical Engineering, The University of Adelaide, Engineering North Building, SA 5005, Australia
| | - Eli Moore
- Mawson Institute, University of South Australia, Mawson Lakes, Australia
| | - Nicolas H Voelcker
- Mawson Institute, University of South Australia, Mawson Lakes, Australia
| | - Dusan Losic
- School of Chemical Engineering, The University of Adelaide, Engineering North Building, SA 5005, Australia
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47
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Dong J, Zink JI. Taking the temperature of the interiors of magnetically heated nanoparticles. ACS NANO 2014; 8:5199-207. [PMID: 24779552 PMCID: PMC4046777 DOI: 10.1021/nn501250e] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The temperature increase inside mesoporous silica nanoparticles induced by encapsulated smaller superparamagnetic nanocrystals in an oscillating magnetic field is measured using a crystalline optical nanothermometer. The detection mechanism is based on the temperature-dependent intensity ratio of two luminescence bands in the upconversion emission spectrum of NaYF4:Yb(3+), Er(3+). A facile stepwise phase transfer method is developed to construct a dual-core mesoporous silica nanoparticle that contains both a nanoheater and a nanothermometer in its interior. The magnetically induced heating inside the nanoparticles varies with different experimental conditions, including the magnetic field induction power, the exposure time to the magnetic field, and the magnetic nanocrystal size. The temperature increase of the immediate nanoenvironment around the magnetic nanocrystals is monitored continuously during the magnetic oscillating field exposure. The interior of the nanoparticles becomes much hotter than the macroscopic solution and cools to the temperature of the ambient fluid on a time scale of seconds after the magnetic field is turned off. This continuous absolute temperature detection method offers quantitative insight into the nanoenvironment around magnetic materials and opens a path for optimizing local temperature controls for physical and biomedical applications.
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Kubota K, Morono Y, Ito M, Terada T, Itezono S, Harada H, Inagaki F. Gold-ISH: a nano-size gold particle-based phylogenetic identification compatible with NanoSIMS. Syst Appl Microbiol 2014; 37:261-6. [PMID: 24702906 DOI: 10.1016/j.syapm.2014.02.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 02/20/2014] [Accepted: 02/20/2014] [Indexed: 11/25/2022]
Abstract
The linkage of microbial phylogenetic and metabolic analyses by combining ion imaging analysis with nano-scale secondary ion mass spectrometry (NanoSIMS) has become a powerful means of exploring the metabolic functions of environmental microorganisms. Phylogenetic identification using NanoSIMS typically involves probing by horseradish peroxidase-mediated deposition of halogenated fluorescent tyramides, which permits highly sensitive detection of specific microbial cells. However, the methods require permeabilization of target microbial cells and inactivation of endogenous peroxidase activity, and the use of halogens as the target atom is limited because of heavy background signals due to the presence of halogenated minerals in soil and sediment samples. Here, we present "Gold-ISH," a non-halogen phylogenetic probing method in which oligonucleotide probes are directly labeled with Undecagold, an ultra-small gold nanoparticle. Undecagold-labeled probes were generated using a thiol-maleimide chemical coupling reaction and they were purified by polyacrylamide gel electrophoresis. The method was optimized with a mixture of axenic (13)C-labeled Escherichia coli and Methanococcus maripaludis cells and applied to investigate sulfate-reducing bacteria in an anaerobic sludge sample. Clear gold-derived target signals were detected in microbial cells using NanoSIMS ion imaging. It was concluded that Gold-ISH can be a useful approach for metabolic studies of naturally occurring microbial ecosystems using NanoSIMS.
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Affiliation(s)
- Kengo Kubota
- Department of Civil and Environmental Engineering, Tohoku University, 6-6-06 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan.
| | - Yuki Morono
- Geomicrobiology Group, Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science & Technology (JAMSTEC), Monobe B200, Nankoku, Kochi 783-8502, Japan; Geobio-Engineering and Technology Group, Submarine Resources Research Project, JAMSTEC, Natsushima-cho 2-15, Yokosuka 237-0061, Japan.
| | - Motoo Ito
- Geochemical Research Group, Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science & Technology (JAMSTEC), Monobe B200, Nankoku, Kochi 783-8502, Japan; Geobio-Engineering and Technology Group, Submarine Resources Research Project, JAMSTEC, Natsushima-cho 2-15, Yokosuka 237-0061, Japan
| | - Takeshi Terada
- Department of Ocean Drilling Science Technical Support, Marine Works Japan LTD, Yokohama 236-0042, Japan
| | - Shogo Itezono
- Department of Civil and Environmental Engineering, Tohoku University, 6-6-06 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan
| | - Hideki Harada
- Department of Civil and Environmental Engineering, Tohoku University, 6-6-06 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan
| | - Fumio Inagaki
- Geomicrobiology Group, Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science & Technology (JAMSTEC), Monobe B200, Nankoku, Kochi 783-8502, Japan; Geobio-Engineering and Technology Group, Submarine Resources Research Project, JAMSTEC, Natsushima-cho 2-15, Yokosuka 237-0061, Japan
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Hassan S, Schade M, Shaw CP, Lévy R, Hamm P. Response of villin headpiece-capped gold nanoparticles to ultrafast laser heating. J Phys Chem B 2014; 118:7954-62. [PMID: 24597838 DOI: 10.1021/jp500845f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The integrity of a small model protein, the 36-residue villin headpiece HP36, attached to gold nanoparticles (AuNP) is examined, and its response to laser excitation of the AuNPs is investigated. To that end, it is first verified by stationary IR and CD spectroscopy, together with denaturation experiments, that the folded structure of the protein is fully preserved when attached to the AuNP surface. It is then shown by time-resolved IR spectroscopy that the protein does not unfold, even upon the highest pump fluences that lead to local temperature jumps on the order of 1000 K of the phonon system of the AuNPs, since that temperature jump persists for too short a time of a few nanoseconds only to be destructive. Judged from a blue shift of the amide I band, indicating destabilized or a few broken hydrogen bonds, the protein either swells, becomes more unstructured from the termini, or changes its degree of solvation. In any case, it recovers immediately after the excess energy dissipates into the bulk solvent. The process is entirely reversible for millions of laser shots without any indication of aggregation of the protein or the AuNPs and with only a minor fraction of broken protein-AuNP thiol bonds. The work provides important cornerstones in designing laser pulse parameters for maximal heating with protein-capped AuNPs without destroying the capping layer.
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Affiliation(s)
- Shabir Hassan
- Department of Chemistry, University of Zurich , Zurich, Switzerland
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Bhushan B, Luo D, Schricker SR, Sigmund W, Zauscher S. Hierarchical Self-Assembled Peptide Nano-ensembles. HANDBOOK OF NANOMATERIALS PROPERTIES 2014. [PMCID: PMC7123264 DOI: 10.1007/978-3-642-31107-9_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A variety of peptides can be self-assembled, i.e. self-organized spontaneously, into large and complex hierarchical structures, reproducibly by regulating a range of parameters that can be environment driven, process driven, or peptide driven. These supramolecular peptide aggregates yield different shapes and structures like nanofibers, nanotubes, nanobelts, nanowires, nanotapes, and micelles. These peptide nanostructures represent a category of materials that bridge biotechnology and nanotechnology and are found suitable not only for biomedical applications such as tissue engineering and drug delivery but also in nanoelectronics.
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Affiliation(s)
- Bharat Bhushan
- Nanoprobe Laboratory for Bio- & Nanotechnology and Biomimetics, Ohio State University, Columbus, Ohio USA
| | - Dan Luo
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York USA
| | - Scott R. Schricker
- Division of Restorative, Prosthetic and Primary Care, The Ohio State University, College of Dentistry, Columbus, Ohio USA
| | - Wolfgang Sigmund
- Department of Materials Science and Engineering, University of Florida, Gainesville, Florida USA
| | - Stefan Zauscher
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina USA
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