1
|
Backhaus A, Albrecht J, Alzhanova G, Long A, Arnold W, Lee J, Tse HY, Su TT, Cruz-Gomez S, Lee SSS, Menges F, Parent LR, Ratjen L, Burtness B, Fortner JD, Zimmerman JB. Multiplexable and Scalable Aqueous Synthesis Platform for Oleate-Based, Bilayer-Coated Gold Nanoparticles. Small 2024:e2309919. [PMID: 38377304 DOI: 10.1002/smll.202309919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 02/06/2024] [Indexed: 02/22/2024]
Abstract
Despite gold-based nanomaterials having a unique role in nanomedicine, among other fields, synthesis limitations relating to reaction scale-up and control result in prohibitively high gold nanoparticle costs. In this work, a new preparation procedure for lipid bilayer-coated gold nanoparticles in water is presented, using sodium oleate as reductant and capping agent. The seed-free synthesis not only allows for size precision (8-30 nm) but also remarkable particle concentration (10 mm Au). These reaction efficiencies allow for multiplexing and reaction standardization in 96-well plates using conventional thermocyclers, in addition to simple particle purification via microcentrifugation. Such a multiplexing approach also enables detailed spectroscopic investigation of the nonlinear growth process and dynamic sodium oleate/oleic acid self-assembly. In addition to scalability (at gram-level), resulting gold nanoparticles are stable at physiological pH, in common cell culture media, and are autoclavable. To demonstrate the versatility and applicability of the reported method, a robust ligand exchange with thiolated polyethylene glycol analogues is also presented.
Collapse
Affiliation(s)
- Andreas Backhaus
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, Rm 530, New Haven, CT, 06511, USA
| | - Jillian Albrecht
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, Rm 530, New Haven, CT, 06511, USA
| | - Gaukhar Alzhanova
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, Rm 530, New Haven, CT, 06511, USA
| | - Avery Long
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, Rm 530, New Haven, CT, 06511, USA
| | - Wyatt Arnold
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, Rm 530, New Haven, CT, 06511, USA
| | - Junseok Lee
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, Rm 530, New Haven, CT, 06511, USA
| | - Ho-Yin Tse
- Center for Green Chemistry and Green Engineering, Yale University, New Haven, CT, 06511, USA
| | - Tina T Su
- Department of Immunology, Yale School of Medicine, New Haven, CT, 06511, USA
| | - Sebastian Cruz-Gomez
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT, 06511, USA
| | - Seung Soo S Lee
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, Rm 530, New Haven, CT, 06511, USA
| | - Fabian Menges
- Department of Chemistry, Yale University, New Haven, CT, 06511, USA
| | - Lucas R Parent
- Innovation Partnership Building, University of Connecticut, Storrs, CT, 06269, USA
| | - Lars Ratjen
- Center for Green Chemistry and Green Engineering, Yale University, New Haven, CT, 06511, USA
| | - Barbara Burtness
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT, 06511, USA
| | - John D Fortner
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, Rm 530, New Haven, CT, 06511, USA
| | - Julie B Zimmerman
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, Rm 530, New Haven, CT, 06511, USA
| |
Collapse
|
2
|
Yun ET, Lee J, Lee SSS, Hong S, Fortner JD. Harnessing the potential of in-situ, electrically generated microbubbles via nickel foam for enhanced, low energy membrane fouling control. Water Res 2024; 249:120886. [PMID: 38103442 DOI: 10.1016/j.watres.2023.120886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/25/2023] [Accepted: 11/15/2023] [Indexed: 12/19/2023]
Abstract
For membrane-based, water treatment technologies, fouling remains a significant challenge for pressure-driven processes. While many antifouling strategies have been proposed, there remains significant room for improved efficiency. Direct application of microbubbles (MBs) at a membrane surface offers a promising approach for managing interfacial fouling through continuous physical interaction(s). Despite such potential, to date, integration and optimization of in-situ generated MBs at the membrane interface that are both highly antifouling with minimal energy inputs and unwanted side reactions remains mostly outstanding. Here we demonstrate the application of conductive, porous nickel foam for electrolysis-based generation of hydrogen microbubbles at an ultra-filtration (UF) membrane interface, which significantly mitigates membrane fouling for a range of model foulants. System characterization and optimization includes comparison of metal foams (Ni, Cu, Ti), faradic efficiencies, hydrogen evolution reaction (HER) curves, cyclic voltammetry, and quantification of hydrogen gas flux and bubble size, as a function of applied current. When optimized, we report rapid (<5 min) and near complete (∼99 %) flux recovery for three classes of foulants, including calcium alginate, humic acid (HA), and SiO2 particles. For all, the described MB-based approach is orders of magnitude more energy efficient when compared to conventional cleaning strategies. Finally, we demonstrate the MB-based regeneration/cleaning process is stable and repeatable for ten cycles and also highly effective for a challenge water (as a model oilfield brine). Taken together, this work presents a novel and efficient approach for the application of in-situ electrically generated MBs to support sustainable pressure-driven membrane processes.
Collapse
Affiliation(s)
- Eun-Tae Yun
- Department of Chemical and Environmental Engineering, Yale University, New Haven CT 06511, USA
| | - Junseok Lee
- Department of Chemical and Environmental Engineering, Yale University, New Haven CT 06511, USA
| | - Seung Soo S Lee
- Department of Chemical and Environmental Engineering, Yale University, New Haven CT 06511, USA
| | - Seungkwan Hong
- School of Civil, Environmental and Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea.
| | - John D Fortner
- Department of Chemical and Environmental Engineering, Yale University, New Haven CT 06511, USA.
| |
Collapse
|