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Yin Q, Wang Y, Xiang Y, Xu F. Nanovaccines: Merits, and diverse roles in boosting antitumor immune responses. Hum Vaccin Immunother 2022; 18:2119020. [PMID: 36170662 DOI: 10.1080/21645515.2022.2119020] [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: 12/15/2022] Open
Abstract
An attractive type of cancer immunotherapy is cancer therapeutic vaccines that induce antitumor immunity effectively. Although supportive results in the recent vaccine studies, there are still numerous drawbacks, such as poor stability, weak immunogenicity and strong toxicity, to be tackled for promoting the potency and durability of antitumor efficacy. NPs (Nanoparticles)-based vaccines offer unique opportunities to breakthrough the current bottleneck. As a rule, nanovaccines are new the generations of vaccines that use NPs as carriers and/or adjuvants. Several advantages of nanovaccines are constantly explored, including optimal nanometer size, high stability, plenty of antigen loading, enhanced immunogenicity, tunable antigen presentation, more retention in lymph nodes and promote patient compliance by a lower frequency of dosing. Here, we summarized the merits and highlight the diverse role nanovaccines play in improving antitumor responses.
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Affiliation(s)
- Qiliang Yin
- Department of Cadre Ward, The First Hospital of Jilin University, Changchun, China
| | - Ying Wang
- Academy of Health Management, Changchun University of Chinese Medicine, Changchun, China
| | - Yipeng Xiang
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Feng Xu
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
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Wu S, Li K, Shi W, Cai J. Preparation and performance evaluation of chitosan/polyvinylpyrrolidone/polyvinyl alcohol electrospun nanofiber membrane for heavy metal ions and organic pollutants removal. Int J Biol Macromol 2022; 210:76-84. [PMID: 35533844 DOI: 10.1016/j.ijbiomac.2022.05.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/21/2022] [Accepted: 05/03/2022] [Indexed: 12/20/2022]
Abstract
In this work, a novel electrospun chitosan (CS)/polyvinylpyrrolidone (PVP)/polyvinyl alcohol (PVA) nanofibrous membrane was prepared to remove heavy metal ions and organic pollutants from water. The nanofiber morphologies were adjusted through the optimal electrospinning process parameters. Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM) characterizations indicated that a well-crosslinked CS/PVP/PVA nanofiber film was formed. Under the optimize conditions, the obtained CS/PVP/PVA nanofiber membranes exhibited porous and uniform nanofibrous structures with an average diameter of 160 nm and a pure water permeability of 4518.91 L·m-2·h-1·bar-1. In addition, the adsorption and separation performance of CS/PVP/PVA nanofiber membranes were evaluated with Cu(II), Ni(II), Cd(II), Pb(II) and Methylene Blue (MB), Malachite Green (MG) as target ions and dyes. The results showed that the retention rate of CS/PVP/PVA nanofiber membranes for Cu(II), Ni(II), Cd(II), Pb(II), MG and MB can reach 94.20%, 90.35%, 83.33%, 80.12%, 84.01% and 69.91%, respectively. The adsorption capacities of Cu(II), Ni(II), Cd(II), Pb(II), MG and MB were 34.79, 25.24, 18.07, 16.05, 17.86 and 13.27 mg g-1. The adsorption kinetics of heavy metal ions and dyes by the nanofiber membranes can be explained by the Langmuir isotherm model and represented by the pseudo-second-order kinetic mechanism that determined the spontaneous chemisorption process. This study provides a synthetic approach to membranes for the removal of organic and heavy metal micropollutants from water.
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Affiliation(s)
- Shuping Wu
- Research School of Polymeric Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, PR China.
| | - Kanghui Li
- Research School of Polymeric Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, PR China
| | - Weijian Shi
- Research School of Polymeric Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, PR China
| | - Jiawei Cai
- Research School of Polymeric Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, PR China
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Heard CJ, Grajciar L, Uhlík F, Shamzhy M, Opanasenko M, Čejka J, Nachtigall P. Zeolite (In)Stability under Aqueous or Steaming Conditions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2003264. [PMID: 32780912 DOI: 10.1002/adma.202003264] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/30/2020] [Indexed: 06/11/2023]
Abstract
Zeolites are among the most environmentally friendly materials produced industrially at the Megaton scale. They find numerous commercial applications, particularly in catalysis, adsorption, and separation. Under ambient conditions aluminosilicate zeolites are stable when exposed to water or water vapor. However, at extreme conditions as high temperature, high water vapor pressure or increased acidity/basicity, their crystalline framework can be destroyed. The stability of the zeolite framework under aqueous conditions also depends on the concentration and character of heteroatoms (other than Al) and the topology of the zeolite. The factors critical for zeolite (in)stability in the presence of water under various conditions are reviewed from the experimental as well as computational sides. Nonreactive and reactive interactions of water with zeolites are addressed. The goal of this review is to provide a comparative overview of all-silica zeolites, aluminosilicates and zeolites with other heteroatoms (Ti, Sn, and Ge) when contacted with water. Due attention is also devoted to the situation when partial zeolite hydrolysis is used beneficially, such as the formation of hierarchical zeolites, synthesis of new zeolites or fine-tuning catalytic or adsorption characteristics of zeolites.
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Affiliation(s)
- Christopher James Heard
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Lukáš Grajciar
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Filip Uhlík
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Mariya Shamzhy
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Maksym Opanasenko
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Jiří Čejka
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Petr Nachtigall
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
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4
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Recent advances in adsorption heat transformation focusing on the development of adsorbent materials. Curr Opin Chem Eng 2019. [DOI: 10.1016/j.coche.2018.12.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wu H, Salles F, Zajac J. A Critical Review of Solid Materials for Low-Temperature Thermochemical Storage of Solar Energy Based on Solid-Vapour Adsorption in View of Space Heating Uses. Molecules 2019; 24:E945. [PMID: 30866556 PMCID: PMC6429295 DOI: 10.3390/molecules24050945] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 02/26/2019] [Accepted: 03/02/2019] [Indexed: 02/04/2023] Open
Abstract
The present report deals with low-temperature thermochemical storage for space heating, which is based on the principles of vapour adsorption onto solid adsorbents. With the aim of obtaining comprehensive information on the rationalized selection of adsorbents for heat storage in open sorption systems operating in the moist-air flow mode, various materials reported up to now in the literature are reviewed by referring strictly to the possible mechanisms of water vapour adsorption, as well as practical aspects of their preparation or their application under particular operating conditions. It seems reasonable to suggest that, on the basis of the current state-of-the-art, the adsorption phenomenon may be rather exploited in the auxiliary heating systems, which provide additional heat during winter's coldest days.
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Affiliation(s)
- Hao Wu
- Institut Charles Gerhardt Montpellier ⁻ UMR CNRS 5253, UM, ENSCM, Place E. Bataillon, CEDEX 05, 34095 Montpellier, France.
| | - Fabrice Salles
- Institut Charles Gerhardt Montpellier ⁻ UMR CNRS 5253, UM, ENSCM, Place E. Bataillon, CEDEX 05, 34095 Montpellier, France.
| | - Jerzy Zajac
- Institut Charles Gerhardt Montpellier ⁻ UMR CNRS 5253, UM, ENSCM, Place E. Bataillon, CEDEX 05, 34095 Montpellier, France.
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Buhl JC, Herzog T, Lutz W, Wieprecht W. Phase Transformation of Hydrothermally Stressed Adsorbents. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Josef-Christian Buhl
- Institut für Mineralogie; Leibniz-Universität Hannover; Callinstraße 3 30167 Hannover Germany
| | - Thomas Herzog
- Technische Hochschule Wildau; Volmerstr. 13 12489 Berlin Germany
| | - Wolfgang Lutz
- Brandenburgische Technische Universität Cottbus-Senftenberg; Volmerstr. 13 12489 Berlin Germany
| | - Wolfgang Wieprecht
- Brandenburgische Technische Universität Cottbus-Senftenberg; Volmerstr. 13 12489 Berlin Germany
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GIS-NaP1 zeolite microspheres as potential water adsorption material: Influence of initial silica concentration on adsorptive and physical/topological properties. Sci Rep 2016; 6:22734. [PMID: 26964638 PMCID: PMC4786819 DOI: 10.1038/srep22734] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 02/18/2016] [Indexed: 12/02/2022] Open
Abstract
GIS-NaP1 zeolite samples were synthesized using seven different Si/Al ratios
(5–11) of the hydrothermal reaction mixtures having chemical composition
Al2O3:xSiO2:14Na2O:840H2O
to study the impact of Si/Al molar ratio on the water vapour adsorption potential,
phase purity, morphology and crystal size of as-synthesized GIS-NaP1 zeolite
crystals. The X-ray diffraction (XRD) observations reveal that Si/Al ratio does not
affect the phase purity of GIS-NaP1 zeolite samples as high purity GIS-NaP1 zeolite
crystals were obtained from all Si/Al ratios. Contrary, Si/Al ratios have remarkable
effect on the morphology, crystal size and porosity of GIS-NaP1 zeolite
microspheres. Transmission electron microscopy (TEM) evaluations of individual
GIS-NaP1 zeolite microsphere demonstrate the characteristic changes in the
packaging/arrangement, shape and size of primary nano crystallites. Textural
characterisation using water vapour adsorption/desorption, and nitrogen
adsorption/desorption data of as-synthesized GIS-NaP1 zeolite predicts the existence
of mix-pores i.e., microporous as well as mesoporous character. High water storage
capacity 1727.5 cm3 g−1 (138.9
wt.%) has been found for as-synthesized GIS-NaP1 zeolite microsphere samples during
water vapour adsorption studies. Further, the total water adsorption capacity values
for P6 (1299.4 mg g−1) and P7
(1388.8 mg g−1) samples reveal that these two
particular samples can absorb even more water than their own weights.
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Kim H, Cho HJ, Narayanan S, Yang S, Furukawa H, Schiffres S, Li X, Zhang YB, Jiang J, Yaghi OM, Wang EN. Characterization of Adsorption Enthalpy of Novel Water-Stable Zeolites and Metal-Organic Frameworks. Sci Rep 2016; 6:19097. [PMID: 26796523 PMCID: PMC4726357 DOI: 10.1038/srep19097] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 11/23/2015] [Indexed: 12/04/2022] Open
Abstract
Water adsorption is becoming increasingly important for many applications including thermal energy storage, desalination, and water harvesting. To develop such applications, it is essential to understand both adsorbent-adsorbate and adsorbate-adsorbate interactions, and also the energy required for adsorption/desorption processes of porous material-adsorbate systems, such as zeolites and metal-organic frameworks (MOFs). In this study, we present a technique to characterize the enthalpy of adsorption/desorption of zeolites and MOF-801 with water as an adsorbate by conducting desorption experiments with conventional differential scanning calorimetry (DSC) and thermogravimetric analyzer (TGA). With this method, the enthalpies of adsorption of previously uncharacterized adsorbents were estimated as a function of both uptake and temperature. Our characterizations indicate that the adsorption enthalpies of type I zeolites can increase to greater than twice the latent heat whereas adsorption enthalpies of MOF-801 are nearly constant for a wide range of vapor uptakes.
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Affiliation(s)
- Hyunho Kim
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, United States
| | - H. Jeremy Cho
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, United States
| | - Shankar Narayanan
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, United States
| | - Sungwoo Yang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, United States
| | - Hiroyasu Furukawa
- Department of Chemistry, University of California – Berkeley, Materials Sciences Division, Lawrence Berkeley National Laboratory, and Kavli Energy NanoSciences Institute at Berkeley, Berkeley, California 94720, United States
| | - Scott Schiffres
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, United States
| | - Xiansen Li
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, United States
| | - Yue-Biao Zhang
- Department of Chemistry, University of California – Berkeley, Materials Sciences Division, Lawrence Berkeley National Laboratory, and Kavli Energy NanoSciences Institute at Berkeley, Berkeley, California 94720, United States
| | - Juncong Jiang
- Department of Chemistry, University of California – Berkeley, Materials Sciences Division, Lawrence Berkeley National Laboratory, and Kavli Energy NanoSciences Institute at Berkeley, Berkeley, California 94720, United States
| | - Omar M. Yaghi
- Department of Chemistry, University of California – Berkeley, Materials Sciences Division, Lawrence Berkeley National Laboratory, and Kavli Energy NanoSciences Institute at Berkeley, Berkeley, California 94720, United States
| | - Evelyn N. Wang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, United States
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