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Harmon DM, Cao Z, Sherman AM, Takanti N, Murati K, Wimsatt MM, Cousineau ML, Hwang Y, Taylor LS, Simpson GJ. Diffusion Mapping with Diffractive Optical Elements for Periodically Patterned Photobleaching. Anal Chem 2024; 96:10161-10169. [PMID: 38864607 DOI: 10.1021/acs.analchem.3c05728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Fourier transform-fluorescence recovery after photobleaching (FT-FRAP) using a diffractive optical element (DOE) is shown to support distance-dependent diffusion analysis in biologically relevant media. Integration of DOEs enables patterning of a dot array for parallel acquisition of point-bleach FRAP measurements at multiple locations across the field of view. In homogeneous media, the spatial harmonics of the dot array analyzed in the spatial Fourier transform domain yield diffusion recovery curves evaluated over specific well-defined distances. Relative distances for diffusive recovery in the spatial Fourier transform domain are directly connected to the 2D (h,k) Miller indices of the corresponding lattice lines. The distribution of the photobleach power across the entire field of view using a multidot array pattern greatly increases the overall signal power in the spatial FT-domain for signal-to-noise improvements. Derivations are presented for the mathematical underpinnings of FT-FRAP performed with 2D periodicity in the photobleach patterns. Retrofitting of FT-FRAP into instrumentation for high-throughput FRAP analysis (Formulatrix) supports automated analysis of robotically prepared 96-well plates for precise quantification of molecular mobility. Figures of merit are evaluated for FT-FRAP in analysis for both slow diffusion of fluorescent dyes in glassy polymer matrices spanning several days and model proteins and monoclonal antibodies within aqueous solutions recovering in matters of seconds.
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Affiliation(s)
- Dustin M Harmon
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Ziyi Cao
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Alex M Sherman
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Nita Takanti
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Kevin Murati
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Maura M Wimsatt
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Michelle L Cousineau
- Department of Industrial and Molecular Pharmaceutics, Purdue University, West Lafayette, Indiana 47907, United States
| | - Yechan Hwang
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Lynne S Taylor
- Department of Industrial and Molecular Pharmaceutics, Purdue University, West Lafayette, Indiana 47907, United States
| | - Garth J Simpson
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
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Dash S, Gutti P, Behera B, Mishra D. Anionic species from multivalent metal salts are differentially retained during aqueous ionic gelation of sodium alginate and could fine-tune the hydrogel properties. Int J Biol Macromol 2024; 265:130767. [PMID: 38471601 DOI: 10.1016/j.ijbiomac.2024.130767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 02/20/2024] [Accepted: 03/08/2024] [Indexed: 03/14/2024]
Abstract
The role of anionic counterions of divalent metal salts in alginate gelation and hydrogel properties has been thoroughly investigated. Three anions were selected from the Hofmeister series, namely sulphate, acetate and chloride, paired in all permutations and combinations with divalent metal cations like calcium, zinc and copper. Spectroscopic analysis revealed the presence of anions and their interaction with the respective metal cations in the hydrogel. The data showed that the gelation time and other hydrogel properties were largely controlled by cations. However, subtle yet significant variations in viscoelasticity, water uptake, drug release and cytocompatibility properties were anion dependent in each cationic group. Computational modelling based study showed that metal-anion-alginate configurations were energetically more stable than the metal-alginate models. The in vitro and in silico studies concluded that acetate anions preceded chlorides in the drug release, swelling and cytocompatibility fronts, followed by sulphate anions in each cationic group. Overall, the data confirmed that anions are an integral part of the metal-alginate complex. Furthermore, anions offer a novel option to further fine-tune the properties of alginate hydrogels for myriads of applications. In addition, full exploration of this novel avenue would enhance the usability of alginate polymers in the pharmaceutical, environmental, biomedical and food industries.
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Affiliation(s)
- Subhasis Dash
- Bioinspired Design Lab, School of BioSciences and Technology (SBST), Vellore Institute of Technology (VIT) Vellore, Tamil Nadu, India
| | - Pavan Gutti
- Bioinspired Design Lab, School of BioSciences and Technology (SBST), Vellore Institute of Technology (VIT) Vellore, Tamil Nadu, India
| | - Birendra Behera
- Department of Biotechnology and Bioinformatics, Sambalpur University, Burla, Odisha, India
| | - Debasish Mishra
- Bioinspired Design Lab, School of BioSciences and Technology (SBST), Vellore Institute of Technology (VIT) Vellore, Tamil Nadu, India.
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Yu R, Shao R, Ning F, Yu Y, Zhang J, Ma XY, Zhu R, Li M, Lai J, Zhao Y, Zeng L, Zhang J, Xia Z. Electronic and Geometric Effects Endow PtRh Jagged Nanowires with Superior Ethanol Oxidation Catalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305817. [PMID: 37814379 DOI: 10.1002/smll.202305817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/04/2023] [Indexed: 10/11/2023]
Abstract
Complete ethanol oxidation reaction (EOR) in C1 pathway with 12 transferred electrons is highly desirable yet challenging in direct ethanol fuel cells. Herein, PtRh jagged nanowires synthesized via a simple wet-chemical approach exhibit exceptional EOR mass activity of 1.63 A mgPt-1 and specific activity of 4.07 mA cm-2 , 3.62-fold and 4.28-folds increments relative to Pt/C, respectively. High proportions of 69.33% and 73.42% of initial activity are also retained after chronoamperometric test (80 000 s) and 1500 consecutive potential cycles, respectively. More importantly, it is found that PtRh jagged nanowires possess superb anti-CO poisoning capability. Combining X-ray absorption spectroscopy, X-ray photoelectron spectroscopy as well as density functional theory calculations unveil that the remarkable catalytic activity and CO tolerance stem from both the Rh-induced electronic effect and geometric effect (manifested by shortened Pt─Pt bond length and shrinkage of lattice constants), which facilitates EOR catalysis in C1 pathway and improves reaction kinetics by reducing energy barriers of rate-determining steps (such as *CO → *COOH). The C1 pathway efficiency of PtRh jagged nanowires is further verified by the high intensity of CO2 relative to CH3 COOH/CH3 CHO in infrared reflection absorption spectroscopy.
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Affiliation(s)
- Renqin Yu
- Institute for Sustainable Energy, College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Ruiwen Shao
- Beijing Advanced Innovation Center for Intelligent Robots and Systems and Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, 100081, China
| | - Fanghua Ning
- Institute for Sustainable Energy, College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Yaodong Yu
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, China
| | - Jing Zhang
- Institute for Sustainable Energy, College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Xian-Yin Ma
- Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Rongying Zhu
- Institute for Sustainable Energy, College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Menggang Li
- School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Jianping Lai
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, China
| | - Yufeng Zhao
- Institute for Sustainable Energy, College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Lingyou Zeng
- School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Jiujun Zhang
- Institute for Sustainable Energy, College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Zhonghong Xia
- Institute for Sustainable Energy, College of Sciences, Shanghai University, Shanghai, 200444, China
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Zhang XY, Wang P, Zhang Y, Cheng XM, Sun WY. Facet-Dependent Photocatalytic Behavior of Fe-soc-MOF for Carbon Dioxide Reduction. ACS APPLIED MATERIALS & INTERFACES 2023; 15:3348-3356. [PMID: 36600591 DOI: 10.1021/acsami.2c19236] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Exposing different facets on metal-organic frameworks (MOFs) is an efficient approach to regulate their photocatalytic performance for CO2 reduction. Herein, Fe-soc-MOFs exposed with different facets were successfully synthesized, and the morphologies of Fe-soc-MOF exposed with eight {111} facets (Fe-soc-O) and that exposed with eight {111} and six {100} crystal facets (Fe-soc-M) are first reported. Fe-soc-MOFs have facet-dependent active sites on their surface and correspondingly different catalytic performance for photocatalytic CO2 reduction. Fe-soc-O has the highest CO production of 1804 μmol g-1 h-1, while the Fe-soc-MOF exposed with six {100} facets (Fe-soc-C) has the best CO selectivity of 94.7%. Density functional theory (DFT) calculations demonstrate that the (111) facet has more favorable thermodynamic potential for CO2 reduction and H2 evolution compared with the (100) one, deriving from its facet-dependent active sites. This work shows that utilizing the facet-engineering strategy to regulate the active sites exposed on the surface of MOFs is feasible. The results display the relation between the facet of MOFs and the photocatalytic behavior for CO2 reduction.
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Affiliation(s)
- Xiao-Yu Zhang
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Peng Wang
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Ya Zhang
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Xiao-Mei Cheng
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Wei-Yin Sun
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
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Shah S, Famta P, Bagasariya D, Charankumar K, Amulya E, Kumar Khatri D, Singh Raghuvanshi R, Bala Singh S, Srivastava S. Nanotechnology based drug delivery systems: Does shape really matter? Int J Pharm 2022; 625:122101. [PMID: 35961415 DOI: 10.1016/j.ijpharm.2022.122101] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/01/2022] [Accepted: 08/05/2022] [Indexed: 01/11/2023]
Abstract
As of today, the era of nanomedicine has brought numerous breakthroughs and overcome challenges in the treatment of various disorders. Various factors like size, charge and surface hydrophilicity have garnered significant attention by nanotechnologists. However, more exploration in the field of nanoparticle shape and geometry, one of the basic physical phenomenon is required. Tuning nanoparticle shape and geometry could potentially overcome pitfalls in therapeutics and biomedical fields. Thus, in this article, we unveil the importance of tuning nanoparticle shape selection across the delivery platforms. This article provides an in-depth understanding of nanoparticle shape modulation and advise the researchers on the ideal morphology selection tailored for each implication. We deliberated the importance of nanoparticle shape selection for specific implications with respect to organ targeting, cellular internalization, pharmacokinetics and bio-distribution, protein corona formation as well as RES evasion and tumor targeting. An additional section on the significance of shape transformation, a recently introduced novel avenue with applications in drug delivery was discussed. Furthermore, regulatory concerns towards nanoparticle shape which need to be addressed for harnessing their clinical translation will be explained.
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Affiliation(s)
- Saurabh Shah
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Paras Famta
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Deepkumar Bagasariya
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Kondasingh Charankumar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Etikala Amulya
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Dharmendra Kumar Khatri
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Rajeev Singh Raghuvanshi
- Indian Pharmacopoeia Commission, Ministry of Health & Family Welfare, Government of India, India
| | - Shashi Bala Singh
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Saurabh Srivastava
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India.
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Investigation of Corrosion Inhibition Potentials of Some Aminopyridine Schiff Bases Using Density Functional Theory and Monte Carlo Simulation. CHEMISTRY AFRICA 2022. [DOI: 10.1007/s42250-021-00304-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Devi S, Kumar A, Kapoor A, Verma V, Yadav S, Bhatia M. Ketoprofen-FA Co-crystal: In Vitro and In Vivo Investigation for the Solubility Enhancement of Drug by Design of Expert. AAPS PharmSciTech 2022; 23:101. [PMID: 35348937 DOI: 10.1208/s12249-022-02253-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 03/14/2022] [Indexed: 11/30/2022] Open
Abstract
The present piece of research work is framed for improving the solubility of ketoprofen by forming co-crystal using fumaric acid as a coformer. Co-crystal of ketoprofen and fumaric acid was prepared by simple solvent-assisted grinding method, containing drug and coformer as independent variables and solubility and % drug release were assumed to be dependent variables. Differential scanning calorimetry, Fourier transform infrared spectroscopy, X-ray diffraction, nuclear magnetic resonance and scanning electron microscopy techniques were used to characterize the preparation of optimized batch of co-crystal and further, evaluated for in vitro and in vivo anti-inflammatory and analgesic activities. Based on results of solubility and dissolution rate studies the formulation showed magnified improvement in both the properties on co-crystallization. The values of Gibbs free energy are negative at all levels of carrier demonstrating spontaneity of the drug solubilization process. The IC50 value of optimized batch of co-crystal formulation and the pure drug was observed as 327.33 μg/ml and 556.11 μg/ml, respectively, demonstrating that co-crystal formulation possesses more percentage protection against protein denaturation than the drug ketoprofen. In vivo (anti-inflammatory and analgesic) activities revealed that optimized batch of co-crystal formulation delivered a rapid pharmacological response in Wistar rats and albino mice when compared with standard drug.
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Gradwohl KP, Benedek P, Popov M, Matković A, Spitaler J, Yarema M, Wood V, Teichert C. Crystal habit analysis of LiFePO 4 microparticles by AFM and first-principles calculations. CrystEngComm 2022. [DOI: 10.1039/d2ce00788f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The influence of surfactant type and concentration on the crystal habit of LiFePO4 particles during hydrothermal synthesis.
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Affiliation(s)
- Kevin-P. Gradwohl
- Institute of Physics, Montanuniversität Leoben, Frank-Josef Straße 18, 8700, Leoben, Austria
- Leibniz-Institut für Kristallzüchtung, Max-Born-Straße 2, 12489 Berlin, Germany
| | - Peter Benedek
- ETH Zürich, Institute for Electronics, Gloriastrasse 35, 8092 Zürich, Switzerland
| | - Maxim Popov
- Materials Center Leoben Forschung GmbH, Roseggerstraße 12, 8700 Leoben, Austria
| | - Aleksandar Matković
- Institute of Physics, Montanuniversität Leoben, Frank-Josef Straße 18, 8700, Leoben, Austria
| | - Jürgen Spitaler
- Materials Center Leoben Forschung GmbH, Roseggerstraße 12, 8700 Leoben, Austria
| | - Maksym Yarema
- ETH Zürich, Institute for Electronics, Gloriastrasse 35, 8092 Zürich, Switzerland
| | - Vanessa Wood
- ETH Zürich, Institute for Electronics, Gloriastrasse 35, 8092 Zürich, Switzerland
| | - Christian Teichert
- Institute of Physics, Montanuniversität Leoben, Frank-Josef Straße 18, 8700, Leoben, Austria
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Development of ketoprofen-p-aminobenzoic acid co-crystal: formulation, characterization, optimization, and evaluation. Med Chem Res 2021. [DOI: 10.1007/s00044-021-02794-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yu X, Lu K, Chen L. Synergistic effects of oxygen vacancies and the chelation of tetracycline with metallic ions for enhanced degradation of tetracycline over photocatalysts La 2−xK xNiMnO 6. CrystEngComm 2021. [DOI: 10.1039/d0ce01340d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OVs induced by potassium doping and the chelation of TC with the metallic ions synergistically enhanced photodegradation of TC by La2−xKxNiMnO6 photocatalysts.
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Affiliation(s)
- Xiaoyan Yu
- School of Physics and Telecommunication Engineering
- Yulin Normal University
- Yulin 537000
- China
| | - Ke Lu
- School of Chemistry and Food
- Yulin Normal University
- Yulin 537000
- China
| | - Le Chen
- School of Physics and Telecommunication Engineering
- Yulin Normal University
- Yulin 537000
- China
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