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Lowry GV, Giraldo JP, Steinmetz NF, Avellan A, Demirer GS, Ristroph KD, Wang GJ, Hendren CO, Alabi CA, Caparco A, da Silva W, González-Gamboa I, Grieger KD, Jeon SJ, Khodakovskaya MV, Kohay H, Kumar V, Muthuramalingam R, Poffenbarger H, Santra S, Tilton RD, White JC. Towards realizing nano-enabled precision delivery in plants. NATURE NANOTECHNOLOGY 2024; 19:1255-1269. [PMID: 38844663 DOI: 10.1038/s41565-024-01667-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 03/27/2024] [Indexed: 09/18/2024]
Abstract
Nanocarriers (NCs) that can precisely deliver active agents, nutrients and genetic materials into plants will make crop agriculture more resilient to climate change and sustainable. As a research field, nano-agriculture is still developing, with significant scientific and societal barriers to overcome. In this Review, we argue that lessons can be learned from mammalian nanomedicine. In particular, it may be possible to enhance efficiency and efficacy by improving our understanding of how NC properties affect their interactions with plant surfaces and biomolecules, and their ability to carry and deliver cargo to specific locations. New tools are required to rapidly assess NC-plant interactions and to explore and verify the range of viable targeting approaches in plants. Elucidating these interactions can lead to the creation of computer-generated in silico models (digital twins) to predict the impact of different NC and plant properties, biological responses, and environmental conditions on the efficiency and efficacy of nanotechnology approaches. Finally, we highlight the need for nano-agriculture researchers and social scientists to converge in order to develop sustainable, safe and socially acceptable NCs.
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Affiliation(s)
- Gregory V Lowry
- Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, PA, USA.
| | - Juan Pablo Giraldo
- Botany and Plant Sciences, University of California, Riverside, Riverside, CA, USA.
| | - Nicole F Steinmetz
- Department of NanoEngineering, University of California San Diego, San Diego, CA, USA
- Department of Bioengineering, University of California San Diego, San Diego, CA, USA
- Department of Radiology, University of California San Diego, San Diego, CA, USA
- Center for Nano-ImmunoEngineering, University of California San Diego, San Diego, CA, USA
- Shu and K.C. Chien and Peter Farrell Collaboratory, University of California San Diego, San Diego, CA, USA
- Center for Engineering in Cancer, Institute of Engineering in Medicine, University of California San Diego, San Diego, CA, USA
- Moores Cancer Center, University of California, University of California San Diego, San Diego, CA, USA
- Institute for Materials Discovery and Design, University of California San Diego, San Diego, CA, USA
| | | | - Gozde S Demirer
- Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Kurt D Ristroph
- Agricultural and Biological Engineering, Purdue University, West Lafayette, IN, USA
| | - Gerald J Wang
- Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Christine O Hendren
- Geological and Environmental Sciences, Appalachian State University, Boone, NC, USA
| | | | - Adam Caparco
- Department of NanoEngineering, University of California San Diego, San Diego, CA, USA
| | | | | | - Khara D Grieger
- Applied Ecology, North Carolina State University, Raleigh, NC, USA
| | - Su-Ji Jeon
- Botany and Plant Sciences, University of California, Riverside, Riverside, CA, USA
| | | | - Hagay Kohay
- Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Vivek Kumar
- Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | | | | | - Swadeshmukul Santra
- Department of Chemistry and Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL, USA
| | - Robert D Tilton
- Chemical Engineering and Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Jason C White
- The Connecticut Agricultural Research Station, New Haven, CT, USA
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2
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Wielinski J, Huang X, Lowry GV. Characterizing the Stoichiometry of Individual Metal Sulfide and Phosphate Colloids in Soils, Sediments, and Industrial Processes by Inductively Coupled Plasma Time-of-Flight Mass Spectrometry. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:12113-12122. [PMID: 38917351 PMCID: PMC11238586 DOI: 10.1021/acs.est.3c10186] [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] [Received: 12/05/2023] [Revised: 06/08/2024] [Accepted: 06/11/2024] [Indexed: 06/27/2024]
Abstract
Size and purity of metal phosphate and metal sulfide colloids can control the solubility, persistence, and bioavailability of metals in environmental systems. Despite their importance, methods for detecting and characterizing the diversity in the elemental composition of these colloids in complex matrices are missing. Here, we develop a single-particle inductively coupled plasma time-of-flight mass spectrometry (sp-icpTOF-MS) approach to characterize the elemental compositions of individual metal phosphate and sulfide colloids extracted from complex matrices. The stoichiometry was accurately determined for particles of known composition with an equivalent spherical diameter of ≥∼200 nm. Assisted by machine learning (ML), the new method could distinguish particles of the copper sulfides covellite (CuS), chalcocite (Cu2S), and chalcopyrite particles (CuFeS2) with 75% (for Cu2S) to 99% (for CuFeS2) accuracy. Application of the sp-icpTOF-MS method to particles recovered from natural samples revealed that iron sulfide (FeS) particles in lake sediment contained ∼4% copper and zinc impurities, whereas pure pyrite (FeS2) was identified in hydraulic fracturing wastewater and confirmed by selected area electron diffraction. Colloidal mercury in an offshore marine sediment was present as pure mercury sulfide (HgS), whereas geogenic HgS recovered from an industrial process contained ∼0.08 wt % silver per Hg, enabling source apportionment of these colloids using ML. X-ray absorption spectroscopy confirmed that Hg was predominantly present as metacinnabar (β-HgS) in the industrial process sample. The determination of impurities in individual colloids, such as zinc and copper in FeS, and silver in HgS may enable improved assessment of their origin, reactivity, and bioavailability potential.
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Affiliation(s)
- Jonas Wielinski
- Department of Civil and Environmental
Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Xiaopeng Huang
- Department of Civil and Environmental
Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Gregory V. Lowry
- Department of Civil and Environmental
Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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3
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Henke AH, Flores K, Goodman AJ, Magurany K, LeVanseler K, Ranville J, Gardea-Torresdey JL, Westerhoff PK. Interlaboratory comparison of centrifugal ultrafiltration with ICP-MS detection in a first-step towards methods to screen for nanomaterial release during certification of drinking water contact materials. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168686. [PMID: 38000751 DOI: 10.1016/j.scitotenv.2023.168686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023]
Abstract
A key requirement for evaluating the safety of nano-enabled water treatment devices is measuring concentrations of insoluble nanomaterials released from devices into water that may be ingested by consumers. Therefore, there is a need for simple technique that uses commonly available commercial laboratory techniques to discriminate between nanoparticles and dissolved by-products of the nanomaterial (e.g., ionic metals). Such capabilities would enable screening for particulate or dissolved metals released into water from nanomaterial-containing drinking water contact materials (e.g., paint coatings) or devices (e.g., filters). This multi-laboratory study sought to investigate the use of relatively inexpensive centrifugal ultrafilters to separate nanoparticulate from ionic metal in combination with inductively-coupled plasma mass spectrometry (ICP-MS) detection. The accuracy, precision, and reproducibility for the proposed method were assessed using mixtures of nanoparticulate and ionic gold (Au) in a standard and widely utilized model water matrix (NSF International Standard 53/61). Concentrations for both ionic and nanoparticulate gold based upon measurements of Au mass in the initial solutions and Au permeating the centrifugal ultrafilters. Results across different solution compositions and different participating labs showed that ionic and nanoparticulate Au could be consistently discriminated with ppb concentrations typically resulting in <10 % error. A mass balance was not achieved because nanoparticles were retained on membranes embedded in plastic holders inside the centrifuge tubes, and the entire apparatus could not be acid and/or microwave digested. This was a minor limitation considering the ultrafiltration method is a screening tool, and gold concentration in the permeate indicates the presence of ionic metal rather than nanoforms. With further development, this approach could prove to be an effective tool in screening for nanomaterial release from water-system or device materials as part of third-party certification processes of drinking water compatible products.
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Affiliation(s)
- Austin H Henke
- National Science Foundation Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Kenneth Flores
- National Science Foundation Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Department of Chemistry & Biochemistry, Environmental Science and Engineering, University of Texas at El Paso, El Paso, TX 79968, USA
| | - Aaron J Goodman
- Department of Chemistry, Colorado School of Mines, Golden, CO 80401, USA
| | | | | | - James Ranville
- Department of Chemistry, Colorado School of Mines, Golden, CO 80401, USA
| | - Jorge L Gardea-Torresdey
- National Science Foundation Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Department of Chemistry & Biochemistry, Environmental Science and Engineering, University of Texas at El Paso, El Paso, TX 79968, USA
| | - Paul K Westerhoff
- National Science Foundation Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85287, USA.
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Chen D, Hu X, Chen C, Lin D, Xu J. Tailoring Fe 0 Nanoparticles via Lattice Engineering for Environmental Remediation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:17178-17188. [PMID: 37903754 DOI: 10.1021/acs.est.3c05129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
Lattice engineering of nanomaterials holds promise in simultaneously regulating their geometric and electronic effects to promote their performance. However, local microenvironment engineering of Fe0 nanoparticles (nFe0) for efficient and selective environmental remediation is still in its infancy and lacks deep understanding. Here, we present the design principles and characterization techniques of lattice-doped nFe0 from the point of view of microenvironment chemistry at both atomic and elemental levels, revealing their crystalline structure, electronic effects, and physicochemical properties. We summarize the current knowledge about the impacts of doping nonmetal p-block elements, transition-metal d-block elements, and hybrid elements into nFe0 crystals on their local coordination environment, which largely determines their structure-property-activity relationships. The materials' reactivity-selectivity trade-off can be altered via facile and feasible approaches, e.g., controlling doping elements' amounts, types, and speciation. We also discuss the remaining challenges and future outlooks of using lattice-doped nFe0 materials in real applications. This perspective provides an intuitive interpretation for the rational design of lattice-doped nFe0, which is conducive to real practice for efficient and selective environmental remediation.
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Affiliation(s)
- Du Chen
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiaohong Hu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chaohuang Chen
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Daohui Lin
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Zhejiang University, Hangzhou 310058, China
| | - Jiang Xu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Zhejiang University, Hangzhou 310058, China
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Nielsen MB, Skjolding L, Baun A, Hansen SF. European nanomaterial legislation in the past 20 years - Closing the final gaps. NANOIMPACT 2023; 32:100487. [PMID: 37821007 DOI: 10.1016/j.impact.2023.100487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 10/04/2023] [Accepted: 10/04/2023] [Indexed: 10/13/2023]
Abstract
In 2004, the potential societal implications related to nanotechnology were highlighted in an influential report by the Royal Society and the Royal Academy of Engineering (RS & RAE). It was made clear that legislation is an important tool to tackle the challenges related to nanomaterials and a list of recommendations were put forward. Shortly after, the European Commission also proposed a list of recommendations on how to handle nanomaterial challenges and adopted the so-called "incremental approach", describing that current legislations should be adapted, where relevant, to handle nanomaterials. Now almost 20 years have passed and it seems relevant to take stock and investigate how legislations have been adapted to tackle nano-specific challenges. In this review, we analyze key pieces of European legislations relevant to nanomaterials and assess to what extent these legislations compare with the original recommendations from 2004 by the RS & RAE and the European Commission. We uncover the cross-cutting challenges that remain and provide recommendations on next steps that should be taken to address the risks of nanomaterials. For each recommendation, we assessed whether it was met to a high, medium or low degree by conducting targeted literature searches at Web of Science, screening legislations, guidance documents, databases etc., and applying expert judgement. We found that >90% of the recommendations put forward in 2004 by the RS & RAE and the European Commission have been either met to a high degree (13 out of 29) or met to a medium degree (14 out of 29). This suggests important advancements in the field of nanosafety. At the same time, it is important to address the concerns still left partly or fully unsolved. Such efforts entail e.g. further development of measuring instruments and standardised characterization and risk assessment methods for nanomaterials, application of a uniform nanomaterial definition, maximization of containment of free nanomaterials until hazards assessed/handled and elimination/minimisation of unintentional nanomaterial emission. Furthermore, we recommend prioritising future efforts to ensure enforcement and implementation of existing nano-specific provisions, as well as revision, where needed, of legislations that currently do not account for nanomaterials, such as the Waste Framework Directive.
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Affiliation(s)
- Maria Bille Nielsen
- Department of Environmental and Resource Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark.
| | - Lars Skjolding
- Department of Environmental and Resource Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Anders Baun
- Department of Environmental and Resource Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Steffen Foss Hansen
- Department of Environmental and Resource Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
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Bruvold AS, Bienfait AM, Ervik TK, Loeschner K, Valdersnes S. Vertical distribution of inorganic nanoparticles in a Norwegian fjord. MARINE ENVIRONMENTAL RESEARCH 2023; 188:105975. [PMID: 37086530 DOI: 10.1016/j.marenvres.2023.105975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 03/07/2023] [Accepted: 04/04/2023] [Indexed: 05/03/2023]
Abstract
Due to the analytical challenges of detecting and quantifying nanoparticles in seawater, the data on distributions of NPs in the marine environment is limited to qualitative studies or by ensemble measurements subject to various analytical artifacts. Single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) allows determination of individual inorganic NPs at environmentally relevant concentrations, yet only few studies have been conducted on selected elements in surface sea water. Here, a sequential multi-element screening method was developed and implemented to provide a first survey of the horizontal and vertical distributions of inorganic nanoparticles and trace elements in a pristine Norwegian fjord prospect for submarine tailings deposition. Statistical control of false-positive detections while minimizing the size detection limit was ensured using a novel raw signal processing. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) gave confirmative and qualitative information regarding particle morphology and composition. Following SP-ICP-MS screening for particles of 16 elements, particulate Al, Fe, Mn, Pb, Si and Ti were found and determined to mass concentrations in ng/L of 1-399, 1-412, below limit of detection (<LOD) - 269, <LOD - 1, <LOD - 1981 and <LOD - 127 ng/L with particle number concentrations up to 108 particles per liter. Total metals concentrations were at least an order of magnitude higher, at concentrations in μg/L of 1-12 for Al, 2-13 for Fe, 0.3-11 Mn, 0.02-0.5 for Pb, 46 to 318 Si and 0.04-0.4 for Ti. A strong depth dependence was observed for both trace elements and particles with concentrations increasing with depth. Our results provide a baseline for the fjord and new data on environmental levels of both total metals and metal containing nanoparticles including the vertical and horizontal distribution of natural nanoparticles.
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Affiliation(s)
- Are S Bruvold
- Institute of Marine Research, P.O. Box 1870 Nordnes, NO-5817, Bergen, Norway; University of Bergen, Department of Chemistry, P.O. Box 7803, N-5020, Bergen, Norway.
| | | | - Torunn Kringlen Ervik
- Norwegian Institute of Occupational Health, P.O. Box 5330, Majorstuen, 0304, Oslo, Norway
| | - Katrin Loeschner
- National Food Institute, Technical University of Denmark, Kemitorvet 201, DK-2800, Kgs, Lyngby, Denmark
| | - Stig Valdersnes
- Institute of Marine Research, P.O. Box 1870 Nordnes, NO-5817, Bergen, Norway; University of Bergen, Department of Chemistry, P.O. Box 7803, N-5020, Bergen, Norway
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Borowska M, Jankowski K. Basic and advanced spectrometric methods for complete nanoparticles characterization in bio/eco systems: current status and future prospects. Anal Bioanal Chem 2023:10.1007/s00216-023-04641-7. [PMID: 36949345 PMCID: PMC10329056 DOI: 10.1007/s00216-023-04641-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/27/2023] [Accepted: 03/03/2023] [Indexed: 03/24/2023]
Abstract
The use of engineered nanoparticles in the environment and human life has increased in the last 20 years. The risk assessment concerning application of nanomaterials in biological systems requires their thorough characterization. Understanding the correlations between physicochemical properties of nanoparticles concerning not only the size, particle size distribution, number concentration, degree of aggregation, or agglomeration but also solubility, stability, binding affinity, surface activity, chemical composition, and nanoparticle synthesis yield allows their reliable characterization. Thus, to find the structure-function/property relationship of nanoparticles, multifaceted characterization approach based on more than one analytical technique is required. On the other hand, the increasing demand for identification and characterization of nanomaterials has contributed to the continuous development of spectrometric techniques which enables for their qualitative and quantitative analysis in complex matrices giving reproducible and reliable results. This review is aimed at providing a discussion concerning four main aspects of nanoparticle characterization: nanoparticle synthesis yield, particle size and number concentration, elemental and isotopic composition of nanoparticles, and their surface properties. The conventional and non-conventional spectrometric techniques such as spectrophotometry UV-Vis, mass spectrometric techniques working in conventional and single-particle mode, or those based on optical emission detection systems are described with special emphasis paid on their advantages and drawbacks. The application and recent advances of these methods are also comprehensively reviewed and critically discussed.
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Affiliation(s)
- Magdalena Borowska
- Chair of Analytical Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw, 00-664, Poland.
| | - Krzysztof Jankowski
- Chair of Analytical Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw, 00-664, Poland
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Simultaneous multi-element and multi-isotope detection in single-particle ICP-MS analysis: Principles and applications. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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