1
|
Yue Z, Xiaoli G, Juan Z, Qun W, Feng W, Yongke Z. Effect of the oxygenic groups on activated carbon on its hemocompatibility. Colloids Surf B Biointerfaces 2024; 233:113655. [PMID: 37988821 DOI: 10.1016/j.colsurfb.2023.113655] [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: 09/12/2023] [Revised: 11/03/2023] [Accepted: 11/13/2023] [Indexed: 11/23/2023]
Abstract
In this research, the effect of the oxygenic groups on activated carbon on its hemocompatibility was studied by liquid-phase oxidation to introduce oxygenic groups on its surface and subsequent heat treatment under a nitrogen environment to remove these groups. Hemocompatibility was assessed through coagulation, hemolysis, platelet adhesion, and protein adsorption using rabbit blood samples. Results showed that an increasing presence of oxygenic groups improved hemocompatibility, evidenced by enhanced coagulation, reduced hemolysis, better platelet adhesion, and decreased fetal bovine serum protein adsorption. Conversely, the removal of oxygenic groups diminished hemocompatibility, except for coagulation when groups were removed at 250 ℃ for 15 min. Therefore, this research presents a promising route to enhance the hemocompatibility of activated carbon, offering insights into surface modification for improved biomaterial design.
Collapse
Affiliation(s)
- Zhong Yue
- The Second Affiliated Hospital of Zunyi Medical University, Zunyi 563099, China
| | - Ge Xiaoli
- Pharmacy school of Zunyi Medical University, Zunyi 563099, China
| | - Zhang Juan
- Pharmacy school of Zunyi Medical University, Zunyi 563099, China
| | - Wei Qun
- Pharmacy school of Zunyi Medical University, Zunyi 563099, China
| | - Wang Feng
- The Second Affiliated Hospital of Zunyi Medical University, Zunyi 563099, China.
| | - Zhong Yongke
- Pharmacy school of Zunyi Medical University, Zunyi 563099, China.
| |
Collapse
|
2
|
Zheng L, Zheng X, Yuan S, Xu W, Zhang C, Zhang X, Fan Z, Wang J, Wang Z, Huang J, Deng J. Biomimetic microcavity interfaces for a label-free capture of pathogens in the fluid bloodstream by vortical crossflow filtration. NANOSCALE 2021; 13:15220-15230. [PMID: 34553723 DOI: 10.1039/d1nr03350f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Bacterial sepsis is a lethal disease triggered by microbial pathogens. The blood pathogen load is a major contributor to both disease severity and mortality in patients with sepsis blood. Therefore, it is crucial to reduce the load of pathogens, in particular the drug-resistant pathogens. In this work, inspired by the crossflow filtration mechanism in suspension-feeding fish, we developed a biomimetic microcavity interface to mimic a porous gill-raker surface as a blood-cleansing dialyzer for sepsis therapy, which can rapidly, safely and efficiently clear bacteria from the fluidic blood. The microcavity interface consists of microcavity arrays, the innerface of which contains nanowire forests. By precisely controlling the pore size of the microcavity and directing the axial travel of the fluid, the bacteria can be isolated from the whole blood without disturbing any blood components or blocking the blood cell transportation. In addition, the three-dimensional nanowire forests assist in the formation of vortices with reduced blood flow velocity and increased resistance to bacterial deposition in situ. Functional modification is not required to recognize the bacteria specifically in our designed dialyzer. Moreover, the microcavity interface clears over 95% bacteria from a fluid blood sample without inducing protein adsorption or complement and platelet activation when contacting the fluid blood. The study supports this biomimetic microcavity interface to be a promising extracorporeal blood-cleansing device in clinical settings.
Collapse
Affiliation(s)
- Liyuan Zheng
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
- School of Medicine (Shenzhen) Sun Yat-sen University, Guangzhou 510080, China
| | - Xiaobo Zheng
- School of Biomedical Engineering, School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou 325011, China
| | - Shanshan Yuan
- Joint Centre of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
- Oujiang Laboratory, (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang 325000, China
| | - Weide Xu
- Joint Centre of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Changhuan Zhang
- Joint Centre of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Xingding Zhang
- School of Medicine (Shenzhen) Sun Yat-sen University, Guangzhou 510080, China
| | - Zhiyuan Fan
- Department of Materials Science and Engineering Drexel University, Philadelphia, PA 19104, USA
| | - Jilong Wang
- Joint Centre of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
- Oujiang Laboratory, (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang 325000, China
| | - Zheng Wang
- Research Center of Blood Transfusion Medicine, Ministry of Education Key Laboratory of Laboratory Medicine, Department of Blood Transfusion, Zhejiang Provincial People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - Jinhai Huang
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University; Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Junjie Deng
- Joint Centre of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
- Oujiang Laboratory, (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang 325000, China
| |
Collapse
|
3
|
Sharma S, Chun SE. New High-Yield Method for the Production of Activated Carbon Via Hydrothermal Carbonization (HTC) Processing of Carbohydrates. J ELECTROCHEM SCI TE 2019. [DOI: 10.33961/jecst.2019.00059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
4
|
Sandeman SR, Zheng Y, Ingavle GC, Howell CA, Mikhalovsky SV, Basnayake K, Boyd O, Davenport A, Beaton N, Davies N. A haemocompatible and scalable nanoporous adsorbent monolith synthesised using a novel lignin binder route to augment the adsorption of poorly removed uraemic toxins in haemodialysis. Biomed Mater 2017; 12:035001. [DOI: 10.1088/1748-605x/aa6546] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
5
|
Cao Y, Gu Y, Wang K, Wang X, Gu Z, Ambrico T, Castro MA, Lee J, Gibbons W, Rice JA. Adsorption of creatinine on active carbons with nitric acid hydrothermal modification. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.06.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
6
|
Karbowska M, Kaminski T, Pawlak D. Methods of reducing the level of indoxyl sulfate – one of the most potent protein-bound uremic toxins. TOXIN REV 2016. [DOI: 10.1080/15569543.2016.1222442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
7
|
Didar TF, Cartwright MJ, Rottman M, Graveline AR, Gamini N, Watters AL, Leslie DC, Mammoto T, Rodas MJ, Kang JH, Waterhouse A, Seiler BT, Lombardo P, Qendro EI, Super M, Ingber DE. Improved treatment of systemic blood infections using antibiotics with extracorporeal opsonin hemoadsorption. Biomaterials 2015; 67:382-92. [DOI: 10.1016/j.biomaterials.2015.07.046] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 07/23/2015] [Accepted: 07/23/2015] [Indexed: 10/23/2022]
|
8
|
Neves SC, Gomes DB, Sousa A, Bidarra SJ, Petrini P, Moroni L, Barrias CC, Granja PL. Biofunctionalized pectin hydrogels as 3D cellular microenvironments. J Mater Chem B 2015; 3:2096-2108. [DOI: 10.1039/c4tb00885e] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Pectin hydrogels were prepared by internal ionotropic gelation and explored as MSC delivery vehicles.
Collapse
Affiliation(s)
- Sara C. Neves
- INEB – Instituto de Engenharia Biomédica
- Universidade do Porto
- 4150-180 Porto
- Portugal
- FEUP – Faculdade de Engenharia da Universidade do Porto
| | - David B. Gomes
- INEB – Instituto de Engenharia Biomédica
- Universidade do Porto
- 4150-180 Porto
- Portugal
- FEUP – Faculdade de Engenharia da Universidade do Porto
| | - Aureliana Sousa
- INEB – Instituto de Engenharia Biomédica
- Universidade do Porto
- 4150-180 Porto
- Portugal
- Instituto de Investigação e Inovação em Saúde
| | - Sílvia J. Bidarra
- INEB – Instituto de Engenharia Biomédica
- Universidade do Porto
- 4150-180 Porto
- Portugal
- Instituto de Investigação e Inovação em Saúde
| | - Paola Petrini
- Laboratorio di Biomateriali
- Dipartimento di Chimica
- Materiali e Ingegneria Chimica ‘G. Natta’
- Unità di Ricerca Consorzio INSTM
- Politecnico di Milano
| | - Lorenzo Moroni
- Department of Tissue Regeneration
- MIRA – Institute for Biomedical Technology and Technical Medicine
- University of Twente
- 7522 NB Enschede
- The Netherlands
| | - Cristina C. Barrias
- INEB – Instituto de Engenharia Biomédica
- Universidade do Porto
- 4150-180 Porto
- Portugal
- Instituto de Investigação e Inovação em Saúde
| | - Pedro L. Granja
- INEB – Instituto de Engenharia Biomédica
- Universidade do Porto
- 4150-180 Porto
- Portugal
- FEUP – Faculdade de Engenharia da Universidade do Porto
| |
Collapse
|
9
|
Sandeman SR, Howell CA, Phillips GJ, Zheng Y, Standen G, Pletzenauer R, Davenport A, Basnayake K, Boyd O, Holt S, Mikhalovsky SV. An adsorbent monolith device to augment the removal of uraemic toxins during haemodialysis. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:1589-1597. [PMID: 24573455 PMCID: PMC4033810 DOI: 10.1007/s10856-014-5173-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Accepted: 02/07/2014] [Indexed: 06/03/2023]
Abstract
Adsorbents designed with porosity which allows the removal of protein bound and high molecular weight uraemic toxins may improve the effectiveness of haemodialysis treatment of chronic kidney disease (CKD). A nanoporous activated carbon monolith prototype designed for direct blood contact was first assessed for its capacity to remove albumin bound marker toxins indoxyl sulphate (IS), p-cresyl sulphate (p-CS) and high molecular weight cytokine interleukin-6 in spiked healthy donor studies. Haemodialysis patient blood samples were then used to measure the presence of these markers in pre- and post-dialysis blood and their removal by adsorbent recirculation of post-dialysis blood samples. Nanopores (20-100 nm) were necessary for marker uraemic toxin removal during in vitro studies. Limited removal of IS and p-CS occurred during haemodialysis, whereas almost complete removal occurred following perfusion through the carbon monoliths suggesting a key role for such adsorbent therapies in CKD patient care.
Collapse
Affiliation(s)
- Susan R Sandeman
- Biomaterials and Medical Devices Research Group, School of Pharmacy and Biomolecular Sciences, University of Brighton, Huxley Building, Lewes Road, Brighton, East Sussex, BN2 4GJ, UK,
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Nanoporous Activated Carbon Beads and Monolithic Columns as Effective Hemoadsorbents for Inflammatory Cytokines. Int J Artif Organs 2013; 36:624-32. [DOI: 10.5301/ijao.5000231] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2013] [Indexed: 11/20/2022]
Abstract
The aim of the present study was to develop and investigate nanoporous activated carbon materials for their ability to adsorb inflammatory cytokines directly from blood, for a range of therapeutic applications, including: systemic inflammatory response syndrome (SIRS) related to sepsis, cardio-pulmonary by-pass surgery, or ischemic reperfusion injury. Building on the previously established relationship between the porous structure of beaded polymer-derived activated carbon and its capacity to adsorb inflammatory molecules, we have developed and characterized monolithic porous carbon columns produced from the same polymer precursor matrix as carbon microbeads. The monolithic columns developed were assessed for their ability to adsorb inflammatory molecules from blood in a circulating system. Preliminary findings demonstrated good removal of the inflammatory cytokines IL-8 (100% removal), IL-6 (80% removal), and TNF (51% removal) from blood. The efficiency of cleansing is dependent on the size of the adsorbed molecule and the porous structure of the monolith, highlighting their potential for use as a hemoadsorption device.
Collapse
|
11
|
Ivanov AE, Kozynchenko OP, Mikhalovska LI, Tennison SR, Jungvid H, Gun'ko VM, Mikhalovsky SV. Activated carbons and carbon-containing poly(vinyl alcohol) cryogels: characterization, protein adsorption and possibility of myoglobin clearance. Phys Chem Chem Phys 2012; 14:16267-78. [PMID: 23132464 DOI: 10.1039/c2cp42869e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Adsorption of myoglobin (Mb), bovine serum albumin (BSA) and γ-globulin (GG) onto activated carbons (ACs) with different pore size distributions, and poly(vinyl alcohol) (PVA) monolithic cryogels containing AC particles was studied. The highest initial rate of Mb adsorption was observed for AC having the largest specific surface area (1939 m(2) g(-1)) and pore volume (1.82 cm(3) g(-1)). The adsorption kinetics of proteins was characterized by a bimodal shape of the distribution f(D) function of an effective diffusion coefficient. Adsorption isotherms of Mb and GG were of Freundlich type within the studied range of equilibrium concentrations (10-150 μg mL(-1)). The distributions of free energy of protein adsorption were bimodal and reflected both interactions with carbon surfaces and self-association of proteins. Adsorbed amounts of Mb were the highest among the proteins studied (up to 700 mg g(-1) carbon), which was attributed to the higher fraction of pores accessible for Mb. Incorporation of carbon particles into PVA-based cryogel resulted in macroporous monolithic composite materials (AC-PVA) exhibiting good flow-through properties. Scanning electron microscopy of the composites showed macroporous aggregates of carbon particles held together by films and bridges of PVA. The rates of adsorption and adsorbed amounts of proteins on AC-PVA were reduced compared to the pristine carbon and depended on the carbon content in the composites. Nevertheless, adsorption of Mb on AC-PVA took place even in the presence of 500-fold higher concentration of BSA. This indicated a possibility of Mb clearance from blood plasma using the PVA-carbon monoliths.
Collapse
|
12
|
Presser V, Yeon SH, Vakifahmetoglu C, Howell CA, Sandeman SR, Colombo P, Mikhalovsky S, Gogotsi Y. Hierarchical porous carbide-derived carbons for the removal of cytokines from blood plasma. Adv Healthc Mater 2012. [PMID: 23184835 DOI: 10.1002/adhm.201200044] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Volker Presser
- Department of Materials Science and Engineering, A. J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA 19104, USA
| | | | | | | | | | | | | | | |
Collapse
|
13
|
Tripisciano C, Kozynchenko OP, Linsberger I, Phillips GJ, Howell CA, Sandeman SR, Tennison SR, Mikhalovsky SV, Weber V, Falkenhagen D. Activation-dependent adsorption of cytokines and toxins related to liver failure to carbon beads. Biomacromolecules 2011; 12:3733-40. [PMID: 21842874 DOI: 10.1021/bm200982g] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In the course of severe pathological conditions, such as acute liver failure and sepsis, toxic metabolites and mediators of inflammation are released into the patient's circulation. One option for the supportive treatment of these conditions is plasmapheresis, in which plasma, after being separated from the cellular components of the blood, is cleansed by adsorption of harmful molecules on polymers or activated carbon. In this work, the adsorption characteristics of activated carbon beads with levels of activation ranging from 0 to 86% were assessed for both hydrophobic compounds accumulating in liver failure (bilirubin, cholic acid, phenol and tryptophan) and cytokines (tumor necrosis factor α and interleukin-6). Progressive activation resulted in significant gradual reduction of both bulk density and mean particle size, in an increase in the specific surface area, and to changes in pore size distribution with progressive broadening of micropores. These structural changes went hand in hand with enhanced adsorption of small adsorbates, such as IL-6 and cholic acid and, to a lesser extent, also of large molecules, such as TNF-α.
Collapse
|
14
|
Lu Y, Gong Q, Lu F, Liang J, Ji L, Nie Q, Zhang X. Preparation of sulfonated porous carbon nanotubes/activated carbon composite beads and their adsorption of low density lipoprotein. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:1855-1862. [PMID: 21656032 DOI: 10.1007/s10856-011-4368-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2011] [Accepted: 05/30/2011] [Indexed: 05/30/2023]
Abstract
The high level of low density lipoprotein (LDL) in plasma is the main cause of atherosclerosis. Hemoperfusion is an ideal therapy to lower the level of LDL in human blood system while therapeutic effect is determined by the adsorbent. The adsorbent must have suitable pore structure and specific functional groups. Carbon nanotubes (CNTs) could be a new adsorbent material because CNTs have high specific surface area and they can be modified by a variety of functional groups. Porous carbon composite beads with the CNTs and phenolic resin mixture were synthesized by suspension polymerization, following with carbonization and steam-activation. Then the porous composite beads were sulfonated with a sulfanilic acid anhydrous by diazotization and coupling reaction. The potential application of the sulfonated porous composite beads in adsorbing low density lipoprotein (LDL) from human serum was investigated. The results showed that the sulfonic acid groups on the composite beads could lower LDL levels greatly by electrostatic interaction with electropositive LDL. The higher 20-100 nm pore volume the composite beads had, the more LDL they could adsorb. The 20-100 nm pore volume was enhanced by adding more CNTs and improving CNTs dispersion (ultrasonic crushing). The sulfonated composite beads containing 45 wt% CNTs presented the highest adsorption capacity to LDL 10.46 mg/g, showing a good prospect as LDL adsorbent in hemoperfusion.
Collapse
Affiliation(s)
- Yuemei Lu
- Department of Mechanical Engineering, Tsinghua University, 100084, Beijing, People's Republic of China.
| | | | | | | | | | | | | |
Collapse
|
15
|
Costanzo JA, Ober CA, Black R, Carta G, Fernandez EJ. Evaluation of polymer matrices for an adsorptive approach to plasma detoxification. Biomaterials 2010; 31:2857-65. [DOI: 10.1016/j.biomaterials.2009.12.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2009] [Accepted: 12/14/2009] [Indexed: 10/20/2022]
|
16
|
Yachamaneni S, Yushin G, Yeon SH, Gogotsi Y, Howell C, Sandeman S, Phillips G, Mikhalovsky S. Mesoporous carbide-derived carbon for cytokine removal from blood plasma. Biomaterials 2010; 31:4789-94. [PMID: 20303167 DOI: 10.1016/j.biomaterials.2010.02.054] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2010] [Accepted: 02/21/2010] [Indexed: 11/25/2022]
Abstract
Porous carbons can be used for purification of bio-fluids due to their excellent biocompatibility with blood. Since the ability to adsorb a range of inflammatory cytokines within the shortest possible time is crucial to stop the progression of sepsis, the improvement of the adsorption rate is a key factor to achieving efficient removal of cytokines. Here, we demonstrate the effect of synthesis temperatures (from 600 degrees C to 1200 degrees C), carbon particle sizes (from below 35 microm to 300 microm), and annealing conditions (Ar, NH(3), H(2), Cl(2), and vacuum annealing) that determine the surface chemistry, on the ability of carbide-derived carbons (CDCs) to remove cytokines TNF-alpha, IL-6, and IL-1 beta from blood plasma. Optimization of CDC processing and structure leads to up to two orders of magnitude increase in the adsorption rate. Mesoporous CDCs that were produced at 800 degrees C from Ti(2)AlC with the precursor particle size of <35 microm and annealed in NH(3), displayed complete removal of large molecules of TNF-alpha in less than an hour, with >85% and >95% TNF-alpha removal in 5 and 30 min, respectively. This is a very significant improvement compared to the previously published results for CDC (90% TNF-alpha removal after 1h) and activated carbons. Smaller interleukin IL-6 and IL-1 beta molecules can be completely removed within 5 min. These differences in adsorption rates show that carbons with controlled porosity can also be used for separation of protein molecules.
Collapse
Affiliation(s)
- Saujanya Yachamaneni
- Department of Materials Science and Engineering and A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA 19104, USA
| | | | | | | | | | | | | | | |
Collapse
|
17
|
Long D, Zhang R, Qiao W, Zhang L, Liang X, Ling L. Biomolecular adsorption behavior on spherical carbon aerogels with various mesopore sizes. J Colloid Interface Sci 2008; 331:40-6. [PMID: 19062032 DOI: 10.1016/j.jcis.2008.11.026] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2008] [Revised: 11/10/2008] [Accepted: 11/14/2008] [Indexed: 10/21/2022]
Abstract
Spherical carbon aerogels (SCAs) with controlled particle size and mesopore size were synthesized by an emulsified sol-gel polymerization of phenol, melamine and formaldehyde. The adsorption rate and capacity of biomolecules with different molecular dimensions, including L-phenylalanine (Phe), vitamin B(12) (VB), alpha-chymotrypsin (Chy) and bovine serum albumin (BSA) onto SCAs were investigated. The mesopore size can be easily tuned in the range from 5 to 10 nm by simply adjusting catalyst concentration in the initial solution and the spherical particle size can be controlled in 50-500 microm by changing stirring speed. The as-prepared SCAs have high specific surface area (>600 m(2)/g) and large pore volume (>1 cm(3)/g). The hardness of SCAs is ca. 10 times as large as that of commercial spherical activated carbon particles. The adsorption rate of VB is strongly depended on the mesopore size and particle size, and show an increasing tread with the increase of mesopore size and the decrease of particle size. For small molecule Phe, the specific surface area is key factor to determine the adsorption capacity, but the adsorption capacity of large molecules (VB, Chy and BSA) is dependent on the pore size of SCAs, which should be suitably larger than the molecule size of biomolecules.
Collapse
Affiliation(s)
- Donghui Long
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | | | | | | | | | | |
Collapse
|
18
|
Sandeman SR, Howell CA, Mikhalovsky SV, Phillips GJ, Lloyd AW, Davies JG, Tennison SR, Rawlinson AP, Kozynchenko OP. Inflammatory cytokine removal by an activated carbon device in a flowing system. Biomaterials 2008; 29:1638-44. [DOI: 10.1016/j.biomaterials.2007.12.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2007] [Accepted: 12/05/2007] [Indexed: 11/29/2022]
|
19
|
La Flamme KE, Popat KC, Leoni L, Markiewicz E, LaTempa TJ, Roman BB, Grimes CA, Desai TA. Biocompatibility of nanoporous alumina membranes for immunoisolation. Biomaterials 2007; 28:2638-45. [PMID: 17335895 PMCID: PMC3225223 DOI: 10.1016/j.biomaterials.2007.02.010] [Citation(s) in RCA: 143] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2006] [Accepted: 02/05/2007] [Indexed: 01/08/2023]
Abstract
Cellular immunoisolation using semi-permeable barriers has been investigated over the past several decades as a promising treatment approach for diseases such as Parkinson's, Alzheimer's, and Type 1 diabetes. Typically, polymeric membranes are used for immunoisolation applications; however, recent advances in technology have led to the development of more robust membranes that are able to more completely meet the requirements for a successful immunoisolation device, including well controlled pore size, chemical and mechanical stability, nonbiodegradability, and biocompatibility with both the graft tissue as well as the host. It has been shown previously that nanoporous alumina biocapsules can act effectively as immunoisolation devices, and support the viability and functionality of encapsulated beta cells. The aim of this investigation was to assess the biocompatibility of the material with host tissue. The cytotoxicity of the capsule, as well as its ability to activate complement and inflammation was studied. Further, the effects of poly(ethylene glycol) (PEG) modification on the tissue response to implanted capsules were studied. Our results have shown that the device is nontoxic and does not induce significant complement activation. Further, in vivo work has demonstrated that implantation of these capsules into the peritoneal cavity of rats induces a transient inflammatory response, and that PEG is useful in minimizing the host response to the material.
Collapse
Affiliation(s)
- Kristen E. La Flamme
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts, 02215
| | - Ketul C. Popat
- Department of Physiology and Division of Bioengineering, University of California San Francisco, San Francisco, CA, 94158
| | - Lara Leoni
- Department of Radiology, University of Chicago, Chicago, Illinois, 60637
| | - Erica Markiewicz
- Department of Radiology, University of Chicago, Chicago, Illinois, 60637
| | - Thomas J. LaTempa
- Department of Electrical Engineering and Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802
| | - Brian B. Roman
- Department of Radiology, University of Chicago, Chicago, Illinois, 60637
| | - Craig A. Grimes
- Department of Electrical Engineering and Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802
| | - Tejal A. Desai
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts, 02215
- Department of Physiology and Division of Bioengineering, University of California San Francisco, San Francisco, CA, 94158
- Corresponding Author: , Fax: 1-415-514-4503
| |
Collapse
|
20
|
Yushin G, Hoffman EN, Barsoum MW, Gogotsi Y, Howell CA, Sandeman SR, Phillips GJ, Lloyd AW, Mikhalovsky SV. Mesoporous carbide-derived carbon with porosity tuned for efficient adsorption of cytokines. Biomaterials 2006; 27:5755-62. [PMID: 16914195 DOI: 10.1016/j.biomaterials.2006.07.019] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2006] [Accepted: 07/17/2006] [Indexed: 11/21/2022]
Abstract
Porous carbons can be used for the purification of various bio-fluids, including the cleansing blood of inflammatory mediators in conditions such as sepsis or auto-immune diseases. Here we show that the control of pore size in carbons is a key factor to achieving efficient removal of cytokines. In particular, the surface area accessible by the protein governs the rate and effectiveness of the adsorption process. We demonstrate that novel mesoporous carbon materials synthesized from ternary MAX-phase carbides can be optimized for efficient adsorption of large inflammatory proteins. The synthesized carbons, having tunable pore size with a large volume of slit-shaped mesopores, outperformed all other materials or methods in terms of efficiency of TNF-alpha removal and the results are comparable only with highly specific antibody-antigen interactions.
Collapse
Affiliation(s)
- Gleb Yushin
- Department of Materials Science and Engineering and A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA 19104, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Howell CA, Sandeman SR, Phillips GJ, Lloyd AW, Davies JG, Mikhalovsky SV, Tennison SR, Rawlinson AP, Kozynchenko OP, Owen HLH, Gaylor JDS, Rouse JJ, Courtney JM. The in vitro adsorption of cytokines by polymer-pyrolysed carbon. Biomaterials 2006; 27:5286-91. [PMID: 16806458 DOI: 10.1016/j.biomaterials.2006.05.041] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2006] [Accepted: 05/24/2006] [Indexed: 12/17/2022]
Abstract
This study investigated a range of phenol-formaldehyde-aniline-based pyrolysed carbon matrices and their component materials, for their ability to adsorb a range of inflammatory cytokines crucial to the progression of sepsis. The efficiency of adsorption of the target molecules from human plasma was assessed and compared to that of Adsorba 300C, a commercially available cellulose-coated activated charcoal. Results indicate that a number of the primary carbon/resin materials demonstrate efficient adsorption of the cytokines studied here (TNF, IL-6 and IL-8), comparable to other adsorbents under clinical investigation. Our findings also illustrate that these adsorbent capabilities are retained when the primary particles are combined to form a pyrolysed carbon matrix. This capability will enable the engineering of the carbon matrix porosity allowing a blend of carbonised particle combinations to be tailored for maximum adsorption of inflammatory cytokines. The present findings support further investigation of this carbon material as a combined carbon-based filtration/adsorbent device for direct blood purification.
Collapse
Affiliation(s)
- Carol A Howell
- Biomedical Materials Research Group, School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, Sussex BN2 4GJ, UK
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|