1
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Sagnelli D, D’Avino A, Rippa M, Vestri A, Marchesano V, Nenna G, Villani F, Ardila G, Centi S, Ratto F, Petti L. Photomobile Polymer-Piezoelectric Composite for Enhanced Actuation and Energy Generation. ACS APPLIED OPTICAL MATERIALS 2023; 1:1651-1660. [PMID: 37915969 PMCID: PMC10616835 DOI: 10.1021/acsaom.3c00227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/18/2023] [Accepted: 09/18/2023] [Indexed: 11/03/2023]
Abstract
In this study, we present an innovative approach to increase the quantum yield and wavelength sensitivity of photomobile polymer (PMP) films based on azobenzene by doping the polymer matrix with noble metal nanoparticles. These doped PMP films showed faster and more significant bending under both UV as well as visible and near-infrared light regardless of whether it was coherent, incoherent, polarized, or unpolarized irradiation, expanding the potential of PMP-based actuators. To illustrate their practical implications, we created a proof-of-concept model of power generation by coupling it to flexible piezoelectric materials under simulated sunlight. This model has been tested under real operating conditions, thus demonstrating the possibility of generating electricity with variable light exposure. Additionally, our synthetic protocol is solvent-free, which is another benefit of environmental relevance. Our research lays the groundwork for the development of sunlight-sensitive devices, such as photomechanical actuators and advanced photovoltaic modules, which may break ground in the thriving field of smart materials. We are confident that the presented findings will contribute to the ongoing discourse in the field and inspire additional advances in renewable energy applications.
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Affiliation(s)
- Domenico Sagnelli
- Institute
of Applied Sciences and Intelligent Systems of CNR, Pozzuoli 80072, Italy
| | - Amalia D’Avino
- Institute
of Applied Sciences and Intelligent Systems of CNR, Pozzuoli 80072, Italy
| | - Massimo Rippa
- Institute
of Applied Sciences and Intelligent Systems of CNR, Pozzuoli 80072, Italy
| | - Ambra Vestri
- Institute
of Applied Sciences and Intelligent Systems of CNR, Pozzuoli 80072, Italy
| | - Valentina Marchesano
- Institute
of Applied Sciences and Intelligent Systems of CNR, Pozzuoli 80072, Italy
| | - Giuseppe Nenna
- Energy
and Sustainable Economic Development, ENEA,
Italian National Agency for New Technologies, Portici Research Centre, Portici, Naples 80055, Italy
| | - Fulvia Villani
- Energy
and Sustainable Economic Development, ENEA,
Italian National Agency for New Technologies, Portici Research Centre, Portici, Naples 80055, Italy
| | - Gustavo Ardila
- CNRS,
Grenoble INP, IMEP-LaHC, Univ. Grenoble
Alpes, Univ. Savoie Mont Blanc, Grenoble F-38000, France
| | - Sonia Centi
- Nello
Carrara Institute of Applied Physics of CNR, Sesto Fiorentino 50019, Italy
| | - Fulvio Ratto
- Nello
Carrara Institute of Applied Physics of CNR, Sesto Fiorentino 50019, Italy
| | - Lucia Petti
- Institute
of Applied Sciences and Intelligent Systems of CNR, Pozzuoli 80072, Italy
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2
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Jiang Y, Liu J, Qin J, Lei J, Zhang X, Xu Z, Li W, Liu X, Wang R, Li B, Lu X. Light-activated gold nanorods for effective therapy of venous malformation. Mater Today Bio 2022; 16:100401. [PMID: 36052154 PMCID: PMC9424588 DOI: 10.1016/j.mtbio.2022.100401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/30/2022] Open
Abstract
Gold nanorods have been studied extensively in the field of tumor therapy but have not been explored in the treatment of venous malformation (VM), which is a common vascular disease in clinic practice lacking an effective therapeutic approach. Herein we reported a nanoplatform of CD31 antibody-conjugated gold nanorods for the photothermal therapy of venous malformation. We immobilized CD31 antibodies on gold nanorods using standard 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC)/N-hydroxysulfosuccinimide sodium (NHS) amine coupling strategies. Besides, a VM xenograft model suitable for testing therapeutic efficacy was established by isolating and culturing VM patient endothelial cells. In vitro experiments indicated that anti-CD31 gold nanorods (GNRs) combined with photothermal therapy (PTT) contributed to the suppression of proliferation and activation of the apoptosis pathway. For in vivo experiments, anti-CD31 GNRs were locally injected into VM xenograft models followed by near infrared (NIR) 808 nm laser irradiation. Notably, VM on the mice was destroyed and absorbed. The anti-CD31 GNRs nanoplatform may serve as a new strategy for the treatment of VM which is of good biosafety and high value of applications.
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Affiliation(s)
- Yihong Jiang
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Junchao Liu
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Jinbao Qin
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Jiahao Lei
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Xing Zhang
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Zhijue Xu
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Weimin Li
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Xiaobing Liu
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Ruihua Wang
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Bo Li
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.,Department of Vascular Surgery, Fengcheng Branch, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 201411, China
| | - Xinwu Lu
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.,Department of Vascular Surgery, Fengcheng Branch, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 201411, China
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3
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Lebepe TC, Oluwafemi OS. Thermal and Medium Stability Study of Polyvidone-Modified Graphene Oxide-Coated Gold Nanorods with High Photothermal Efficiency. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12193382. [PMID: 36234510 PMCID: PMC9565574 DOI: 10.3390/nano12193382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/17/2022] [Accepted: 09/21/2022] [Indexed: 05/13/2023]
Abstract
Coating gold nanorods (AuNRs) with different materials, such as polymers and graphene-based materials, has improved their biocompatibility. However, these materials have been shown to cause the instability of AuNRs in thermal and culture mediums. In addressing this issue, we herein report the synthesis, thermal and culture medium stability, and photothermal profiling of Polyvidone (PVP)-modified graphene oxide (GO)-coated AuNRs (mGO@AuNRs). The AuNRs, with a size of 40.70 nm × 9.16 nm and absorbing at 820 nm, were coated with PVP, GO, and mGO. The colloidal stability of the nanocomposites was tested in three commonly used cell culture mediums: the Roswell Park Memorial Institute 1640 (RPMI-1640), Dulbecco's Modified Eagle Medium, (DMEM) and Dulbecco's phosphate-buffered saline (PBS) using UV-Vis-NIR and dynamic light scattering. The GO-based nanocomposites were stable compared to PVP@AuNRs and AuNRs in all mediums. The photothermal profiling of mGO@AuNRs showed higher heat production, with the photothermal conversion efficiency of 54.8%, which is higher than the bare AuNRs, GO@AuNRs, and PVP@AuNRs. In addition, the mGO@AuNRs also showed good thermal stability at 70 °C for more than 24 h. These results present the dual coating of PVP and GO as excellent stabilising agents for AuNRs with good photothermal profiling.
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Affiliation(s)
- Thabang Calvin Lebepe
- Department of Chemical Science, University of Johannesburg, Johannesburg 2028, South Africa
- Centre for Nanomaterials Sciences Research, University of Johannesburg, Johannesburg 2028, South Africa
| | - Oluwatobi Samuel Oluwafemi
- Department of Chemical Science, University of Johannesburg, Johannesburg 2028, South Africa
- Centre for Nanomaterials Sciences Research, University of Johannesburg, Johannesburg 2028, South Africa
- Correspondence:
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4
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Borri C, Centi S, Chioccioli S, Bogani P, Micheletti F, Gai M, Grandi P, Laschi S, Tona F, Barucci A, Zoppetti N, Pini R, Ratto F. Paper-based genetic assays with bioconjugated gold nanorods and an automated readout pipeline. Sci Rep 2022; 12:6223. [PMID: 35418671 PMCID: PMC9007582 DOI: 10.1038/s41598-022-10227-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/21/2022] [Indexed: 01/10/2023] Open
Abstract
Paper-based biosensors featuring immunoconjugated gold nanoparticles have gained extraordinary momentum in recent times as the platform of choice in key cases of field applications, including the so-called rapid antigen tests for SARS-CoV-2. Here, we propose a revision of this format, one that may leverage on the most recent advances in materials science and data processing. In particular, we target an amplifiable DNA rather than a protein analyte, and we replace gold nanospheres with anisotropic nanorods, which are intrinsically brighter by a factor of ~ 10, and multiplexable. By comparison with a gold-standard method for dot-blot readout with digoxigenin, we show that gold nanorods entail much faster and easier processing, at the cost of a higher limit of detection (from below 1 to 10 ppm in the case of plasmid DNA containing a target transgene, in our current setup). In addition, we test a complete workflow to acquire and process photographs of dot-blot membranes with custom-made hardware and regression tools, as a strategy to gain more analytical sensitivity and potential for quantification. A leave-one-out approach for training and validation with as few as 36 sample instances already improves the limit of detection reached by the naked eye by a factor around 2. Taken together, we conjecture that the synergistic combination of new materials and innovative tools for data processing may bring the analytical sensitivity of paper-based biosensors to approach the level of lab-grade molecular tests.
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Affiliation(s)
- Claudia Borri
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
| | - Sonia Centi
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy.
| | - Sofia Chioccioli
- Dipartimento di Biologia, Università degli Studi di Firenze, 50019, Sesto Fiorentino, FI, Italy
| | - Patrizia Bogani
- Dipartimento di Biologia, Università degli Studi di Firenze, 50019, Sesto Fiorentino, FI, Italy
| | - Filippo Micheletti
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
| | - Marco Gai
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
| | - Paolo Grandi
- Laboratori Victoria S.R.L, 51100, Pistoia, Italy
| | - Serena Laschi
- Ecobioservices & Researches S.R.L, 50019, Sesto Fiorentino, FI, Italy
| | - Francesco Tona
- Ecobioservices & Researches S.R.L, 50019, Sesto Fiorentino, FI, Italy
| | - Andrea Barucci
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
| | - Nicola Zoppetti
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
| | - Roberto Pini
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
| | - Fulvio Ratto
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, 50019, Sesto Fiorentino, FI, Italy
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5
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Malatesta M. Histochemistry for nanomedicine: Novelty in tradition. Eur J Histochem 2021; 65. [PMID: 34961299 PMCID: PMC8743982 DOI: 10.4081/ejh.2021.3376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 11/22/2022] Open
Abstract
During the last two centuries, histochemistry has provided significant advancements in many fields of life sciences. After a period of neglect due to the great development of biomolecular techniques, the histochemical approach has been reappraised and is now widely applied in the field of nanomedicine. In fact, the novel nanoconstructs intended for biomedical purposes must be visualized to test their interaction with tissue and cell components. To this aim, several long-established staining methods have been re-discovered and re-interpreted in an unconventional way for unequivocal identification of nanoparticulates at both light and transmission electron microscopy.
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Affiliation(s)
- Manuela Malatesta
- Department of Neurosciences, Biomedicine and Movement Sciences, Anatomy and Histology Section, University of Verona.
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6
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Oladipo AO, Lebepe TC, Ncapayi V, Tsolekile N, Parani S, Songca SP, Mori S, Kodama T, Oluwafemi OS. The Therapeutic Effect of Second Near-Infrared Absorbing Gold Nanorods on Metastatic Lymph Nodes via Lymphatic Delivery System. Pharmaceutics 2021; 13:pharmaceutics13091359. [PMID: 34575435 PMCID: PMC8466320 DOI: 10.3390/pharmaceutics13091359] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/06/2021] [Accepted: 08/10/2021] [Indexed: 11/17/2022] Open
Abstract
Photothermal therapy has been established recently as a non-invasive treatment protocol for cancer metastatic lymph nodes. Although this treatment approach shows efficient tumour ablation towards lymph node metastasis, the monitoring and reporting of treatment progress using the lymphatic delivery channel still need to be explored. Herein, we investigated the anti-tumour effect of pegylated gold nanorods with a high aspect ratio (PAuNRs) delivered via the lymphatic route in a mouse model. In this study, breast carcinoma (FM3A-Luc) cells were inoculated in the subiliac lymph node (SiLN) to induce metastasis in the proper axillary lymph node (PALN). The treatment was initiated by injecting the PAuNRs into the accessory axillary lymph node (AALN) after tumour metastasis was confirmed in the PALN followed by external NIR laser irradiation under a temperature-controlled cooling system. The anti-tumour impact of the treatment was evaluated using an in vivo bioluminescence imaging system (IVIS). The results showed a time-dependent reduction in tumour activity with significant treatment response. Tumour growth was inhibited in all mice treated with PAuNRs under laser irradiation; results were statistically significant (** p < 0.01) even after treatment was concluded on day 3. We believe that this non-invasive technique would provide more information on the dynamics of tumour therapy using the lymphatically administered route in preclinical studies.
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Affiliation(s)
- Adewale O. Oladipo
- Department of Chemical Sciences, University of Johannesburg Doornfontein Campus, Johannesburg 2028, South Africa; (A.O.O.); (T.C.L.); (V.N.); (N.T.); (S.P.)
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa
| | - Thabang C. Lebepe
- Department of Chemical Sciences, University of Johannesburg Doornfontein Campus, Johannesburg 2028, South Africa; (A.O.O.); (T.C.L.); (V.N.); (N.T.); (S.P.)
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa
| | - Vuyelwa Ncapayi
- Department of Chemical Sciences, University of Johannesburg Doornfontein Campus, Johannesburg 2028, South Africa; (A.O.O.); (T.C.L.); (V.N.); (N.T.); (S.P.)
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa
| | - Ncediwe Tsolekile
- Department of Chemical Sciences, University of Johannesburg Doornfontein Campus, Johannesburg 2028, South Africa; (A.O.O.); (T.C.L.); (V.N.); (N.T.); (S.P.)
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa
| | - Sundararajan Parani
- Department of Chemical Sciences, University of Johannesburg Doornfontein Campus, Johannesburg 2028, South Africa; (A.O.O.); (T.C.L.); (V.N.); (N.T.); (S.P.)
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa
| | - Sandile P. Songca
- Department of Chemistry, University of KwaZulu-Natal, Private Bag X 54001, Durban 4000, South Africa;
| | - Shiro Mori
- Graduate School of Biomedical Engineering, Tohoku University, 4-1 Seiryo, Aoba, Sendai 980-8575, Japan;
- Department of Oral and Maxillofacial Surgery, Tohoku University Hospital, 1-1 Seiryo, Aoba, Sendai 980-8575, Japan
| | - Tetsuya Kodama
- Graduate School of Biomedical Engineering, Tohoku University, 4-1 Seiryo, Aoba, Sendai 980-8575, Japan;
- Correspondence: (T.K.); (O.S.O.)
| | - Oluwatobi S. Oluwafemi
- Department of Chemical Sciences, University of Johannesburg Doornfontein Campus, Johannesburg 2028, South Africa; (A.O.O.); (T.C.L.); (V.N.); (N.T.); (S.P.)
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa
- Correspondence: (T.K.); (O.S.O.)
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7
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Qiyami Hour F, Shabani R, Ashtrai B, Moinzadeh A, Mehdizadeh M. Labelling of human Wharton's jelly-derived mesenchymal stem cells with gold nanorods by biomimicry method. Cell Biochem Funct 2021; 39:983-990. [PMID: 34374101 DOI: 10.1002/cbf.3665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/21/2021] [Accepted: 07/25/2021] [Indexed: 11/11/2022]
Abstract
Mesenchymal stem cell (MSC)-based cell therapy can provide opportunities for the treatment of various diseases. However, when used in vivo, these cells should be labelled and monitored by a non-invasive method during delivery to the desired locations within the body. This study describes a biomimicry method that effectively labels human Wharton's jelly-derived MSCs (hWJ-MSCs) with a photoacoustics (PA) contrast agent, gold nanorods (GNRs), without the need for transfection agents (TAs). In this method for cell labelling, the hWJ-MSCs were co-incubated with non-adherent cells isolated from fresh umbilical cord for 2 days immediately before incubation with GNRs. Next, hWJ-MSCs were labelled with the GNRs at a concentration of approximately 1010 nanorads/mL (NR/mL) followed by transmission electron microscopy (TEM) and inductively coupled plasma mass spectroscopy (ICP-MS) to verify their labelling effectiveness. The GNRs-labelled MSCs prepared by this method had an intracellular gold (Au) concentration of 3.4 ± 0.4 pg/cell, which is an acceptable amount for cell labelling.
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Affiliation(s)
- Farshid Qiyami Hour
- Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Ronak Shabani
- Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Behnaz Ashtrai
- Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Alaa Moinzadeh
- Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Mehdizadeh
- Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
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8
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Alalaiwe A. Bioconjugated nanometals and cancer therapy: a pharmaceutical perspective. Nanomedicine (Lond) 2021; 16:1791-1811. [PMID: 34296631 DOI: 10.2217/nnm-2021-0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Conventional cancer chemotherapies are associated with challenges like delivering sub-therapeutic doses to target cells, lack of bioavailability, drug insolubility and nonspecific toxicity to healthy cells. Nanomedicine, an advanced process, can contribute to the development of personalized medicine for diagnosis, therapy and monitoring of cancer. The nanometals enhance drug dissolution and adhesion to targeted tumor surfaces, resulting in rapid onset of effective therapeutic action. Moreover, nanometals can be conjugated with ligands or polymers through a conjugation process, which further leads to enhanced efficiency, target specificity, improved pharmacokinetics and pharmacodynamics of the drug. This review focuses on the applications of conjugated nanometals in cancer therapy, with a special focus on noble and magnetic nanometals.
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Affiliation(s)
- Ahmed Alalaiwe
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia
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9
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Acebes-Fernández V, Landeira-Viñuela A, Juanes-Velasco P, Hernández AP, Otazo-Perez A, Manzano-Román R, Gongora R, Fuentes M. Nanomedicine and Onco-Immunotherapy: From the Bench to Bedside to Biomarkers. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1274. [PMID: 32610601 PMCID: PMC7407304 DOI: 10.3390/nano10071274] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/16/2020] [Accepted: 06/23/2020] [Indexed: 12/12/2022]
Abstract
The broad relationship between the immune system and cancer is opening a new hallmark to explore for nanomedicine. Here, all the common and synergy points between both areas are reviewed and described, and the recent approaches which show the progress from the bench to the beside to biomarkers developed in nanomedicine and onco-immunotherapy.
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Affiliation(s)
- Vanessa Acebes-Fernández
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
| | - Alicia Landeira-Viñuela
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
| | - Pablo Juanes-Velasco
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
| | - Angela-Patricia Hernández
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
| | - Andrea Otazo-Perez
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
| | - Raúl Manzano-Román
- Proteomics Unit, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain;
| | - Rafael Gongora
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
| | - Manuel Fuentes
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
- Proteomics Unit, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain;
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10
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Cavigli L, Centi S, Borri C, Tortoli P, Panettieri I, Streit I, Ciofini D, Magni G, Rossi F, Siano S, Ratto F, Pini R. 1064-nm-resonant gold nanorods for photoacoustic theranostics within permissible exposure limits. JOURNAL OF BIOPHOTONICS 2019; 12:e201900082. [PMID: 31155855 DOI: 10.1002/jbio.201900082] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/03/2019] [Accepted: 05/30/2019] [Indexed: 05/07/2023]
Abstract
Therapeutic and diagnostic methods based on photomechanical effects are attracting much current attention in contexts as oncology, cardiology and vascular surgery, for such applications as photoacoustic imaging or microsurgery. Their underlying mechanism is the generation of ultrasound or cavitation from the interaction of short optical pulses with endogenous dyes or targeted contrast agents. Among the latter, gold nanorods are outstanding candidates, but their use has mainly been reported for photoacoustic imaging and photothermal treatments. Conversely, much less is still known about their value as a precision tool for photomechanical manipulations, such as to impart local damage with high spatial resolution through the expansion and collapse of microbubbles. Here, we address the feasibility of gold nanorods exhibiting a distribution of surface plasmon resonances between about 900 to above 1100 nm as a contrast agent for photoacoustic theranostics. After testing their cytotoxicity and cellular uptake, we discuss their photostability and use to mediate cavitation and the photomechanical destruction of targeted cells. We find that the choice of a plasmonic band peaking around 1064 nm is key to enhance the translational potential of this approach. With respect to the standard alternative of 800 nm, at 1064 nm, relevant regulations on optical exposure are less restrictive and the photonic technology is more mature.
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Affiliation(s)
- Lucia Cavigli
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Sonia Centi
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Claudia Borri
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Paolo Tortoli
- Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze, Sesto Fiorentino, Italy
| | - Ilaria Panettieri
- Dipartimento di Ingegneria Meccanica e Aerospaziale, Politecnico di Torino, Torino, Italy
| | | | - Daniele Ciofini
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Giada Magni
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Francesca Rossi
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Salvatore Siano
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Fulvio Ratto
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Roberto Pini
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
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11
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Auría-Soro C, Nesma T, Juanes-Velasco P, Landeira-Viñuela A, Fidalgo-Gomez H, Acebes-Fernandez V, Gongora R, Almendral Parra MJ, Manzano-Roman R, Fuentes M. Interactions of Nanoparticles and Biosystems: Microenvironment of Nanoparticles and Biomolecules in Nanomedicine. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1365. [PMID: 31554176 PMCID: PMC6835394 DOI: 10.3390/nano9101365] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/17/2019] [Accepted: 09/18/2019] [Indexed: 12/12/2022]
Abstract
Nanotechnology is a multidisciplinary science covering matters involving the nanoscale level that is being developed for a great variety of applications. Nanomedicine is one of these attractive and challenging uses focused on the employment of nanomaterials in medical applications such as drug delivery. However, handling these nanometric systems require defining specific parameters to establish the possible advantages and disadvantages in specific applications. This review presents the fundamental factors of nanoparticles and its microenvironment that must be considered to make an appropriate design for medical applications, mainly: (i) Interactions between nanoparticles and their biological environment, (ii) the interaction mechanisms, (iii) and the physicochemical properties of nanoparticles. On the other hand, the repercussions of the control, alter and modify these parameters in the biomedical applications. Additionally, we briefly report the implications of nanoparticles in nanomedicine and precision medicine, and provide perspectives in immunotherapy, which is opening novel applications as immune-oncology.
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Affiliation(s)
- Carlota Auría-Soro
- Department of Medicine and General Cytometry Service-Nucleus, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain.
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemistry, University of Salamanca, 37008 Salamanca, Spain.
| | - Tabata Nesma
- Department of Medicine and General Cytometry Service-Nucleus, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain.
| | - Pablo Juanes-Velasco
- Department of Medicine and General Cytometry Service-Nucleus, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain.
| | - Alicia Landeira-Viñuela
- Department of Medicine and General Cytometry Service-Nucleus, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain.
| | - Helena Fidalgo-Gomez
- Department of Medicine and General Cytometry Service-Nucleus, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain.
| | - Vanessa Acebes-Fernandez
- Department of Medicine and General Cytometry Service-Nucleus, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain.
| | - Rafael Gongora
- Department of Medicine and General Cytometry Service-Nucleus, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain.
| | - María Jesus Almendral Parra
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemistry, University of Salamanca, 37008 Salamanca, Spain.
| | - Raúl Manzano-Roman
- Proteomics Unit. Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain.
| | - Manuel Fuentes
- Department of Medicine and General Cytometry Service-Nucleus, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain.
- Proteomics Unit. Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain.
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12
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Borri C, Centi S, Ratto F, Pini R. Polylysine as a functional biopolymer to couple gold nanorods to tumor-tropic cells. J Nanobiotechnology 2018; 16:50. [PMID: 29855304 PMCID: PMC5984317 DOI: 10.1186/s12951-018-0377-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 05/23/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The delivery of plasmonic particles, such as gold nanorods, to the tumor microenvironment has attracted much interest in biomedical optics for topical applications as the photoacoustic imaging and photothermal ablation of cancer. However, the systemic injection of free particles still crashes into a complexity of biological barriers, such as the reticuloendothelial system, that prevent their efficient biodistribution. In this context, the notion to exploit the inherent features of tumor-tropic cells for the creation of a Trojan horse is emerging as a plausible alternative. RESULTS We report on a convenient approach to load cationic gold nanorods into murine macrophages that exhibit chemotactic sensitivity to track gradients of inflammatory stimuli. In particular, we compare a new model of poly-L-lysine-coated particles against two alternatives of cationic moieties that we have presented elsewhere, i.e. a small quaternary ammonium compound and an arginine-rich cell-penetrating peptide. Murine macrophages that are exposed to poly-L-lysine-coated gold nanorods at a dosage of 400 µM Au for 24 h undertake efficient uptake, i.e. around 3 pg Au per cell, retain the majority of their cargo until 24 h post-treatment and maintain around 90% of their pristine viability, chemotactic and pro-inflammatory functions. CONCLUSIONS With respect to previous models of cationic coatings, poly-L-lysine is a competitive solution for the preparation of biological vehicles of gold nanorods, especially for applications that may require longer life span of the Trojan horse, say in the order of 24 h. This biopolymer combines the cost-effectiveness of small molecules and biocompatibility and efficiency of natural peptides and thus holds potential for translational developments.
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Affiliation(s)
- Claudia Borri
- Institute of Applied Physics ‘N. Carrara’, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
- Department of Experimental and Clinical Biomedical Sciences ‘M. Serio’, University of Florence, Largo Brambilla, 3, 50134 Florence, Italy
| | - Sonia Centi
- Institute of Applied Physics ‘N. Carrara’, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - Fulvio Ratto
- Institute of Applied Physics ‘N. Carrara’, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - Roberto Pini
- Institute of Applied Physics ‘N. Carrara’, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
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13
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Centi S, Ratto F, Tatini F, Lai S, Pini R. Ready-to-use protein G-conjugated gold nanorods for biosensing and biomedical applications. J Nanobiotechnology 2018; 16:5. [PMID: 29351815 PMCID: PMC5775603 DOI: 10.1186/s12951-017-0329-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/16/2017] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Gold nanorods (GNRs) display unique capacity to absorb and scatter near infrared light, which arises from their peculiar composition of surface plasmon resonances. For this reason, GNRs have become an innovative material of great hope in nanomedicine, in particular for imaging and therapy of cancer, as well as in photonic sensing of biological agents and toxic compounds for e.g. biomedical diagnostics, forensic analysis and environmental monitoring. As the use of GNRs is becoming more and more popular, in all these contexts, there is emerging a latent need for simple and versatile protocols for their modification with targeting units that may convey high specificity for any analyte of interest of an end-user. RESULTS We introduce protein G-coated GNRs as a versatile solution for the oriented immobilization of antibodies in a single step of mixing. We assess this strategy against more standard covalent binding of antibodies, in terms of biocompatibility and efficiency of molecular recognition in buffer, serum and plasma, in the context of the development of a direct immunoenzymatic assay. In both cases, we estimate an average of around 30 events of molecular recognition per particle. In addition, we disclose a convenient protocol to store these particles for months in a freezer, without any detrimental effect. CONCLUSIONS The biocompatibility and efficiency of molecular recognition is similar in either case of GNRs that are modified with antibodies by covalent binding or oriented immobilization through protein G. However, protein G-coated GNRs are most attractive for an end-user, owing to their unique versatility and ease of bioconjugation with antibodies of her/his choice.
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Affiliation(s)
- S. Centi
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - F. Ratto
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - F. Tatini
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - S. Lai
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - R. Pini
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
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14
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Lai S, Centi S, Borri C, Ratto F, Cavigli L, Micheletti F, Kemper B, Ketelhut S, Kozyreva T, Gonnelli L, Rossi F, Colagrande S, Pini R. A multifunctional organosilica cross-linker for the bio-conjugation of gold nanorods. Colloids Surf B Biointerfaces 2017; 157:174-181. [PMID: 28586730 DOI: 10.1016/j.colsurfb.2017.05.068] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 05/03/2017] [Accepted: 05/26/2017] [Indexed: 12/21/2022]
Abstract
We report on the use of organosilica shells to couple gold nanorods to functional peptides and modulate their physiochemical and biological profiles. In particular, we focus on the case of cell penetrating peptides, which are used to load tumor-tropic macrophages and implement an innovative drug delivery system for photothermal and photoacoustic applications. The presence of organosilica exerts subtle effects on multiple parameters of the particles, including their size, shape, electrokinetic potential, photostability, kinetics of endocytic uptake and cytotoxicity, which are investigated by the interplay of colorimetric methods and digital holographic microscopy. As a rule of thumb, as the thickness of organosilica increases from none to ∼30nm, we find an improvement of the photophysical performances at the expense of a deterioration of the biological parameters. Therefore, detailed engineering of the particles for a certain application will require a careful trade-off between photophysical and biological specifications.
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Affiliation(s)
- Sarah Lai
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy
| | - Sonia Centi
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy
| | - Claudia Borri
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy; Department of Experimental and Clinical Biomedical Science, University of Florence, Florence, Italy
| | - Fulvio Ratto
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy.
| | - Lucia Cavigli
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy
| | - Filippo Micheletti
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy
| | - Bjӧrn Kemper
- Biomedical Technology Center, University of Muenster, Muenster, Germany
| | - Steffi Ketelhut
- Biomedical Technology Center, University of Muenster, Muenster, Germany
| | | | | | - Francesca Rossi
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy
| | - Stefano Colagrande
- Department of Experimental and Clinical Biomedical Science, University of Florence, Florence, Italy
| | - Roberto Pini
- Institute of Applied Physics, National Research Council of Italy, Sesto Fiorentino, Italy
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15
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Hosu O, Ravalli A, Lo Piccolo GM, Cristea C, Sandulescu R, Marrazza G. Smartphone-based immunosensor for CA125 detection. Talanta 2017; 166:234-240. [DOI: 10.1016/j.talanta.2017.01.073] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 01/23/2017] [Accepted: 01/25/2017] [Indexed: 01/03/2023]
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16
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Li G, Zhu L, Wu Z, He Y, Tan H, Sun S. Digital Concentration Readout of DNA by Absolute Quantification of Optically Countable Gold Nanorods. Anal Chem 2016; 88:10994-11000. [DOI: 10.1021/acs.analchem.6b02712] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Guohua Li
- Institute
of Optical Imaging and Sensing, Shenzhen Key Laboratory for Minimal
Invasive Medical Technologies, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, People’s Republic of China
- Department
of Physics, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Liang Zhu
- Institute
of Optical Imaging and Sensing, Shenzhen Key Laboratory for Minimal
Invasive Medical Technologies, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, People’s Republic of China
- Department
of Physics, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Zhenjie Wu
- Institute
of Optical Imaging and Sensing, Shenzhen Key Laboratory for Minimal
Invasive Medical Technologies, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, People’s Republic of China
- Department
of Physics, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Yonghong He
- Institute
of Optical Imaging and Sensing, Shenzhen Key Laboratory for Minimal
Invasive Medical Technologies, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, People’s Republic of China
- Department
of Physics, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Hui Tan
- Shenzhen
Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518035, China
| | - Shuqing Sun
- Institute
of Optical Imaging and Sensing, Shenzhen Key Laboratory for Minimal
Invasive Medical Technologies, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, People’s Republic of China
- Department
of Physics, Tsinghua University, Beijing 100084, People’s Republic of China
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17
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Ravalli A, Voccia D, Palchetti I, Marrazza G. Electrochemical, Electrochemiluminescence, and Photoelectrochemical Aptamer-Based Nanostructured Sensors for Biomarker Analysis. BIOSENSORS-BASEL 2016; 6:bios6030039. [PMID: 27490578 PMCID: PMC5039658 DOI: 10.3390/bios6030039] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 07/12/2016] [Accepted: 07/27/2016] [Indexed: 12/11/2022]
Abstract
Aptamer-based sensors have been intensively investigated as potential analytical tools in clinical analysis providing the desired portability, fast response, sensitivity, and specificity, in addition to lower cost and simplicity versus conventional methods. The aim of this review, without pretending to be exhaustive, is to give the readers an overview of recent important achievements about electrochemical, electrochemiluminescence, and photoelectrochemical aptasensors for the protein biomarker determination, mainly cancer related biomarkers, by selected recent publications. Special emphasis is placed on nanostructured-based aptasensors, which show a substantial improvement of the analytical performances.
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Affiliation(s)
- Andrea Ravalli
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy.
| | - Diego Voccia
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy.
| | - Ilaria Palchetti
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy.
| | - Giovanna Marrazza
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy.
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18
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Cavigli L, Tatini F, Borri C, Ratto F, Centi S, Cini A, Lelli B, Matteini P, Pini R. Preparation and Photoacoustic Analysis of Cellular Vehicles Containing Gold Nanorods. J Vis Exp 2016:53328. [PMID: 27167995 PMCID: PMC4942024 DOI: 10.3791/53328] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Gold nanorods are attractive for a range of biomedical applications, such as the photothermal ablation and the photoacoustic imaging of cancer, thanks to their intense optical absorbance in the near-infrared window, low cytotoxicity and potential to home into tumors. However, their delivery to tumors still remains an issue. An innovative approach consists of the exploitation of the tropism of tumor-associated macrophages that may be loaded with gold nanorods in vitro. Here, we describe the preparation and the photoacoustic inspection of cellular vehicles containing gold nanorods. PEGylated gold nanorods are modified with quaternary ammonium compounds, in order to achieve a cationic profile. On contact with murine macrophages in ordinary Petri dishes, these particles are found to undergo massive uptake into endocytic vesicles. Then these cells are embedded in biopolymeric hydrogels, which are used to verify that the stability of photoacoustic conversion of the particles is retained in their inclusion into cellular vehicles. We are confident that these results may provide new inspiration for the development of novel strategies to deliver plasmonic particles to tumors.
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Affiliation(s)
- Lucia Cavigli
- Institute of Applied Physics, Italian National Research Council
| | | | - Claudia Borri
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Firenze
| | - Fulvio Ratto
- Institute of Applied Physics, Italian National Research Council;
| | - Sonia Centi
- Institute of Applied Physics, Italian National Research Council
| | - Alberto Cini
- Department of Physics and Astronomy, University of Florence, Sesto Fiorentino
| | - Beatrice Lelli
- Department of Pharmacy and Biotechnology, University of Bologna
| | - Paolo Matteini
- Institute of Applied Physics, Italian National Research Council
| | - Roberto Pini
- Institute of Applied Physics, Italian National Research Council
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Ko H, Son S, Bae S, Kim JH, Yi GR, Park JH. Near-infrared light-triggered thermochemotherapy of cancer using a polymer-gold nanorod conjugate. NANOTECHNOLOGY 2016; 27:175102. [PMID: 26987360 DOI: 10.1088/0957-4484/27/17/175102] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A biocompatible polymer-gold nanorod (P-AuNR) conjugate was developed as a thermo-chemotherapeutic nano-sized drug carrier for cancer therapy using near-infrared (NIR) light as an external trigger. The amphiphilic polymer, poly(ethylene glycol)-block-poly(caprolactone) (PEG-b-PCL) bearing a disulfide bond, was prepared using a facile synthetic route via copper(I)-free click chemistry and covalently linked to AuNR. The chemical structures and successful conjugation of PEG-b-PCL were analyzed using (1)H NMR and FT-IR. Doxorubicin (DOX), a hydrophobic anticancer drug, was effectively loaded into the hydrophobic PCL domain of P-AuNR through a simple dialysis method. P-AuNR showed longitudinal plasmon resonance absorption at the NIR region, thus generating heat under irradiation at 808 nm. Interestingly, exposure of P-AuNRs to NIR induced a structural change in the PCL block from a crystalline to an amorphous state, leading to the temporally controlled release of DOX. No significant release of DOX was observed from P-AuNRs under physiological conditions (pH 7.4), whereas the release rate of DOX was remarkably enhanced in response to NIR irradiation. In vitro cellular experiments to assess cytotoxicity and intracellular drug release behavior of DOX-P-AuNRs demonstrated that the release of DOX could be selectively regulated by NIR irradiation. Overall, DOX-P-AuNRs might have the potential to overcome the indiscriminate toxicity of free DOX.
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Affiliation(s)
- Hyewon Ko
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Suwon 440-746, Korea
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