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Whitledge JD, Soto P, Glowacki KM, Calello DP, Fox ER, Mazer-Amirshahi M. Trends in Shortages of Lead Chelators From 2001 to 2022. J Pediatr Pharmacol Ther 2024; 29:306-315. [PMID: 38863853 PMCID: PMC11163907 DOI: 10.5863/1551-6776-29.3.306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/13/2023] [Indexed: 06/13/2024]
Abstract
OBJECTIVE The study aims to describe drug shortages affecting lead chelators in the United States from 2001 through 2022. METHODS Drug shortage data were retrieved from the University of Utah Drug Information Service from January 1, 2001, through December 31, 2022. Shortages of first- and second-line lead chelators were analyzed. Drug class, formulation, administration route, shortage reason, shortage duration, generic status, single-source status, and presence of temporally overlapping shortages were examined. Total shortage months, percentages of study period on shortage, and median shortage durations were calculated. RESULTS Thirteen lead chelator shortages were reported during the study period. Median duration was 7.4 months and the longest shortage (24.8 months) involved calcium disodium edetate. Calcium disodium edetate and dimercaprol had the greatest number of shortages, 4 each, and 61.5% of shortages involved parenteral medications. Median shortage duration was 14.2 months for parenteral agents and 2.2 months for non-parenteral agents. All shortages involved generic, single-source products. Supply/demand and manufacturing problems were the most common shortage reasons provided. Overlapping shortages occurred for 3.7% of the study period. Median shortage duration increased from 3 to 11 months in the second half of the study period, and 61.5% of shortages occurred in the second half of the study period. CONCLUSIONS All chelators experienced multiple shortages, which became increasingly frequent and prolonged over time. Concurrent shortages occurred, potentially hampering substitution between different agents. Health care stakeholders must build supply chain resilience and develop guidelines regarding how to modify chelation therapy based on shortage conditions.
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Affiliation(s)
- James D. Whitledge
- Harvard Medical Toxicology Fellowship (JDW), Boston Children’s Hospital, Boston, MA
- Department of Emergency Medicine (JDW), Beth Israel Deaconess Medical Center, Boston, MA
| | - Pelayia Soto
- National Capital Poison Center (PS, MMA), Washington, DC
- Department of Emergency Medicine (PS), The George Washington University School of Medicine, Washington, DC
| | | | - Diane P. Calello
- Rutgers New Jersey Medical School (DPC), Newark, NJ
- New Jersey Poison Information and Education System (DPC), Newark, NJ
| | - Erin R. Fox
- Department of Pharmacy Services (ERF), University of Utah Health, Salt Lake City, UT
| | - Maryann Mazer-Amirshahi
- National Capital Poison Center (PS, MMA), Washington, DC
- Department of Emergency Medicine (MMA), MedStar Washington Hospital Center, Washington, DC
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2
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Singh VK, Gunasekaran P, Kumari M, Krishnan D, Ramachandran VK. Animal sourced biopolymer for mitigating xenobiotics and hazardous materials. PHYSICAL SCIENCES REVIEWS 2023. [DOI: 10.1515/psr-2022-0221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
Abstract
Over the past several decades, xenobiotic chemicals have badly affected the environment including human health, ecosystem and environment. Animal-sourced biopolymers have been employed for the removal of heavy metals and organic dyes from the contaminated soil and waste waters. Animal-sourced biopolymers are biocompatible, cost-effective, eco-friendly, and sustainable in nature which make them a favorable choice for the mitigation of xenobiotic and hazardous compounds. Chitin/chitosan, collagen, gelatin, keratin, and silk fibroin-based biopolymers are the most commonly used biopolymers. This chapter reviews the current challenge faced in applying these animal-based biopolymers in eliminating/neutralizing various recalcitrant chemicals and dyes from the environment. This chapter ends with the discussion on the recent advancements and future development in the employability of these biopolymers in such environmental applications.
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Affiliation(s)
- Vipendra Kumar Singh
- School of Biosciences and Bioengineering , Indian Institute of Technology Mandi , VPO Kamand , Mandi , Himachal Pradesh , India
| | - Priya Gunasekaran
- Department of Biotechnology , College of Science and Humanities, SRM Institute of Science and Technology , Ramapuram , Chennai , Tamil Nadu , India
| | - Medha Kumari
- Brainology Research Fellow, Neuroscience and Microplastic Lab , Brainology Scientific Academy of Jharkhand , Ranchi , Jharkhand , India
| | - Dolly Krishnan
- Secretary cum Founder Director, Research Wing , Brainology Scientific Academy of Jharkhand , Ranchi , Jharkhand , India
| | - Vinoth Kumar Ramachandran
- Department of Biotechnology , College of Science and Humanities, SRM Institute of Science and Technology , Ramapuram , Chennai , Tamil Nadu , India
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Hara T, Kumagai R, Tanaka T, Nakano T, Fujie T, Fujiwara Y, Yamamoto C, Kaji T. Lead suppresses perlecan expression via EGFR-ERK1/2-COX-2-PGI 2 pathway in cultured bovine vascular endothelial cells. J Toxicol Sci 2023; 48:655-663. [PMID: 38044127 DOI: 10.2131/jts.48.655] [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] [Indexed: 12/05/2023]
Abstract
Vascular endothelial cell growth is essential for the repair of intimal injury. Perlecan, a large heparan sulfate proteoglycan, intensifies fibroblast growth factor-2 (FGF-2) signaling as a co-receptor for FGF-2 and its receptor, and promotes the proliferation of vascular endothelial cells. Previously, we reported that 2 µM of lead, a toxic heavy metal, downregulated perlecan core protein expression and then suppressed the growth of vascular endothelial cells. However, since the mechanisms involved in the repression of perlecan by lead remains unclear, we analyzed its detailed signaling pathway using cultured bovine aortic endothelial cells. Our findings indicate that 2 µM of lead inhibited protein tyrosine phosphatase (PTP) activity and induced cyclooxygenase-2 (COX-2) via phosphorylation of the epidermal growth factor receptor (EGFR) and its downstream extracellular signal-regulated kinases (ERK1/2). In addition, among the prostanoids regulated by COX-2, prostaglandin I2 (PGI2) specifically contributes to the downregulation of perlecan expression by lead. This study revealed an intracellular pathway-the EGFR-ERK1/2-COX-2-PGI2 pathway activated by inhibition of PTP by lead-as a pathway that downregulates endothelial perlecan synthesis. The pathway is suggested to serve as a mechanism for the repression of perlecan expression, which leads to a delay in cell proliferation by lead.
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Affiliation(s)
- Takato Hara
- Faculty of Pharmaceutical Sciences, Toho University
| | - Reina Kumagai
- Faculty of Pharmaceutical Sciences, Tokyo University of Science
| | - Tohru Tanaka
- Faculty of Pharmaceutical Sciences, Toho University
| | | | - Tomoya Fujie
- Faculty of Pharmaceutical Sciences, Tokyo University of Science
| | | | | | - Toshiyuki Kaji
- Faculty of Pharmaceutical Sciences, Tokyo University of Science
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4
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Li M, Wang X, Gong G, Tang Y, Zhang Y, Guo J, Liao X, Shi B. Natural polyphenol-based nanoengineering of collagen-constructed hemoperfusion adsorbent for the excretion of heavy metals. JOURNAL OF HAZARDOUS MATERIALS 2022; 428:128145. [PMID: 35007965 DOI: 10.1016/j.jhazmat.2021.128145] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/10/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
Designing a hemoperfusion adsorbent for the excretion therapy of toxic heavy metals still remains a great challenge due to the biosafety risks of non-biological materials and the desired highly efficient removal capacity. Herein, inspired from the homeostasis mechanism of plants, natural polyphenols are integrated with collagen matrix to construct a polyphenol-functionalized collagen-based artificial liver (PAL) for heavy metals excretion and free radicals scavenging therapy. PAL presents high adsorption capacities for Cu2+, Pb2+, and UO22+ ions, up to 76.98 μmol g-1, 106.70 μmol g-1, and 252.48 μmol g-1, respectively. Remarkably, PAL possesses a high binding affinity for UO22+, Pb2+, and Cu2+ ions even in the complex serum environment with the presence of biologically-relevant ions (e.g., Mg2+, Ca2+ ions). Low hemolysis ratio (1.77%), high cell viability (> 85%), high plasma recalcification time (17.4 min), and low protein adsorption (1.02 μmol g-1) indicate outstanding biocompatibility of this material. This natural polyphenol/collagen-based fully bio-derived hemoperfusion adsorbent provides a novel and potentially applicable strategy for constructing a hemoperfusion adsorbent for heavy metal ions excretion therapy with efficiency and biosafety.
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Affiliation(s)
- Meifeng Li
- Department of Biomass Chemistry and Engineering, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Xiaoling Wang
- Department of Biomass Chemistry and Engineering, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Guidong Gong
- Department of Biomass Chemistry and Engineering, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yi Tang
- Department of Biomass Chemistry and Engineering, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yaoyao Zhang
- Key Laboratory of Birth Defects and Related of Women and Children of Ministry of Education, The Reproductive Medical Center, Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Junling Guo
- Department of Biomass Chemistry and Engineering, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China; National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu, Sichuan 610065, China.
| | - Xuepin Liao
- Department of Biomass Chemistry and Engineering, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu, Sichuan 610065, China.
| | - Bi Shi
- Department of Biomass Chemistry and Engineering, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China; National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu, Sichuan 610065, China
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5
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Adsorption and Release Characteristics of Purified and Non-Purified Clinoptilolite Tuffs towards Health-Relevant Heavy Metals. CRYSTALS 2021. [DOI: 10.3390/cryst11111343] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The occurrence of health-relevant contaminants in water has become a severe global problem. For treating heavy-metal-polluted water, the use of zeolite materials has been extended over the last decades, due to their excellent features of high ion exchange capacity and absorbency. The aim of this study was to assess the effect of heavy metal uptake of one purified (PCT) and two non-purified clinoptilolite tuffs (NPCT1 and NPCT2) in aqueous solutions on monovalent ions Ni+, Cd+, Cs+, Ba+, Tl+, and Pb+. Experiments were furthermore carried out in artificial gastric and intestinal fluids to mimic human digestion and compare removal efficiencies of the adsorbent materials as well as release characteristics in synthetic gastric (SGF) and intestinal fluids (SIF). Batch experiments show low sorption capacities for Ni+ and Cd+ for all studied materials; highest affinities were found for Ba+ (99–100%), Pb+ (98–100%), Cs+ (97–98%), and Tl+ (96%), depending on the experimental setup for the PCT. For the adsorption experiments with SGF, highest adsorption was observed for the PCT for Pb+, with an uptake of 99% of the lead content. During artificial digestion, it was proven that the PCT did not release Ba+ cations into solution, whereas 13,574 ng·g−1 and 4839 ng·g−1 of Ba+ were measured in the solutions with NPCT1 and NPCT2, respectively. It was demonstrated that the purified clinoptilolite tuff is most effective in remediating heavy-metal-polluted water, particularly during artificial digestion (99% of Pb+, 95% of Tl+, 93% of Ba+). In addition, it was shown that the released amount of bound heavy metal ions (e.g., barium) from the non-purified clinoptilolite tuffs into the intestinal fluids was significantly higher compared to the purified product.
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Salve R, Kumar P, Ngamcherdtrakul W, Gajbhiye V, Yantasee W. Stimuli-responsive mesoporous silica nanoparticles: A custom-tailored next generation approach in cargo delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 124:112084. [PMID: 33947574 DOI: 10.1016/j.msec.2021.112084] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/23/2021] [Accepted: 03/26/2021] [Indexed: 12/28/2022]
Abstract
The pre-mature release of therapeutic cargos in the bloodstream or off-target sites is a major hurdle in drug delivery. However, stimuli-specific drug release responses are capable of providing greater control over the cargo release. Herein, various types of nanocarriers have been employed for such applications. Among various types of nanoparticles, mesoporous silica nanoparticles (MSNPs) have several attractive characteristics, such as high loading capacity, biocompatibility, small size, porous structure, high surface area, tunable pore size and ease of functionalization of the external and internal surfaces, which facilitates the entrapment and development of stimuli-dependent release of drugs. MSNPs could be modified with such stimuli-responsive entities like nucleic acid, peptides, polymers, organic molecules, etc., to prevent pre-mature cargo release, improving the therapeutic outcome. This controlled drug release system could be modulated to function upon extracellular or intracellular specific stimuli, including pH, enzyme, glucose, glutathione, light, temperature, etc., and thus provide minimal side effects at non-target sites. This system has great potential applications for the targeted delivery of therapeutics to treat clinically challenging diseases like cancer. This review summarizes the synthesis and design of stimuli-responsive release strategies of MSNP-based drug delivery systems along with investigations in biomedical applications.
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Affiliation(s)
- Rajesh Salve
- Nanobioscience Group, Agharkar Research Institute, Pune 411004, India; Savitribai Phule Pune University, Pune 411004, India
| | - Pramod Kumar
- Nanobioscience Group, Agharkar Research Institute, Pune 411004, India; Savitribai Phule Pune University, Pune 411004, India
| | | | - Virendra Gajbhiye
- Nanobioscience Group, Agharkar Research Institute, Pune 411004, India; Savitribai Phule Pune University, Pune 411004, India.
| | - Wassana Yantasee
- PDX Pharmaceuticals, Inc., Portland, OR 97239, USA; Biomedical Engineering, OHSU School of Medicine, Portland, OR 97239, USA.
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7
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Wang M, Bera G, Mitra K, Wade TL, Knap AH, Phillips TD. Tight sorption of arsenic, cadmium, mercury, and lead by edible activated carbon and acid-processed montmorillonite clay. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:6758-6770. [PMID: 33009611 PMCID: PMC7855320 DOI: 10.1007/s11356-020-10973-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 09/21/2020] [Indexed: 05/21/2023]
Abstract
Heavy metal exposure in humans and animals commonly occurs through the consumption of metal-contaminated drinking water and food. Although many studies have focused on the remediation of metals by purification of water using sorbents, limited therapeutic sorbent strategies have been developed to minimize human and animal exposures to contaminated water and food. To address this need, a medical grade activated carbon (MAC) and an acid processed montmorillonite clay (APM) were characterized for their ability to bind heavy metals and mixtures. Results of screening and adsorption/desorption isotherms showed that binding plots for arsenic, cadmium, and mercury sorption on surfaces of MAC (and lead on APM) fit the Langmuir model. The highest binding percentage, capacity, and affinity were shown in a simulated stomach model, and the lowest percentage desorption (< 18%) was shown in a simulated intestine model. The safety and protective ability of MAC and APM were confirmed in a living organism (Hydra vulgaris) where 0.1% MAC significantly protected the hydra against As, Cd, Hg, and a mixture of metals by 30-70%. In other studies, APM showed significant reduction (75%) of Pd toxicity, compared with MAC and heat-collapsed APM, suggesting that the interlayer of APM was important for Pb sorption. This is the first report showing that edible sorbents can bind mixtures of heavy metals in a simulated gastrointestinal tract and prevent their toxicity in a living organism. Graphical abstract.
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Affiliation(s)
- Meichen Wang
- Veterinary Integrative Biosciences Department, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, 77843, USA
| | - Gopal Bera
- Geochemical & Environmental Research Group, Texas A&M University, College Station, TX, 77845, USA
| | - Kusumica Mitra
- Geochemical & Environmental Research Group, Texas A&M University, College Station, TX, 77845, USA
| | - Terry L Wade
- Geochemical & Environmental Research Group, Texas A&M University, College Station, TX, 77845, USA
| | - Anthony H Knap
- Geochemical & Environmental Research Group, Texas A&M University, College Station, TX, 77845, USA
| | - Timothy D Phillips
- Veterinary Integrative Biosciences Department, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, 77843, USA.
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Gisbert-Garzarán M, Lozano D, Vallet-Regí M. Mesoporous Silica Nanoparticles for Targeting Subcellular Organelles. Int J Mol Sci 2020; 21:ijms21249696. [PMID: 33353212 PMCID: PMC7766291 DOI: 10.3390/ijms21249696] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 02/06/2023] Open
Abstract
Current chemotherapy treatments lack great selectivity towards tumoral cells, which leads to nonspecific drug distribution and subsequent side effects. In this regard, the use of nanoparticles able to encapsulate and release therapeutic agents has attracted growing attention. In this sense, mesoporous silica nanoparticles (MSNs) have been widely employed as drug carriers owing to their exquisite physico-chemical properties. Because MSNs present a surface full of silanol groups, they can be easily functionalized to endow the nanoparticles with many different functionalities, including the introduction of moieties with affinity for the cell membrane or relevant compartments within the cell, thus increasing the efficacy of the treatments. This review manuscript will provide the state-of-the-art on MSNs functionalized for targeting subcellular compartments, focusing on the cytoplasm, the mitochondria, and the nucleus.
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Affiliation(s)
- Miguel Gisbert-Garzarán
- Departamento de Química en Ciencias Farmacéuticas, Instituto de Investigación Sanitaria Hospital 12 de Octubre i + 12, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (M.G.-G.); (D.L.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
| | - Daniel Lozano
- Departamento de Química en Ciencias Farmacéuticas, Instituto de Investigación Sanitaria Hospital 12 de Octubre i + 12, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (M.G.-G.); (D.L.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
| | - María Vallet-Regí
- Departamento de Química en Ciencias Farmacéuticas, Instituto de Investigación Sanitaria Hospital 12 de Octubre i + 12, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (M.G.-G.); (D.L.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-91-394-1843
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Gisbert-Garzarán M, Manzano M, Vallet-Regí M. Mesoporous Silica Nanoparticles for the Treatment of Complex Bone Diseases: Bone Cancer, Bone Infection and Osteoporosis. Pharmaceutics 2020; 12:E83. [PMID: 31968690 PMCID: PMC7022913 DOI: 10.3390/pharmaceutics12010083] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/13/2020] [Accepted: 01/19/2020] [Indexed: 12/13/2022] Open
Abstract
Bone diseases, such as bone cancer, bone infection and osteoporosis, constitute a major issue for modern societies as a consequence of their progressive ageing. Even though these pathologies can be currently treated in the clinic, some of those treatments present drawbacks that may lead to severe complications. For instance, chemotherapy lacks great tumor tissue selectivity, affecting healthy and diseased tissues. In addition, the inappropriate use of antimicrobials is leading to the appearance of drug-resistant bacteria and persistent biofilms, rendering current antibiotics useless. Furthermore, current antiosteoporotic treatments present many side effects as a consequence of their poor bioavailability and the need to use higher doses. In view of the existing evidence, the encapsulation and selective delivery to the diseased tissues of the different therapeutic compounds seem highly convenient. In this sense, silica-based mesoporous nanoparticles offer great loading capacity within their pores, the possibility of modifying the surface to target the particles to the malignant areas and great biocompatibility. This manuscript is intended to be a comprehensive review of the available literature on complex bone diseases treated with silica-based mesoporous nanoparticles-the further development of which and eventual translation into the clinic could bring significant benefits for our future society.
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Affiliation(s)
- Miguel Gisbert-Garzarán
- Departamento de Química en Ciencias Farmacéuticas, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre i + 12, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain;
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
| | - Miguel Manzano
- Departamento de Química en Ciencias Farmacéuticas, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre i + 12, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain;
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
| | - María Vallet-Regí
- Departamento de Química en Ciencias Farmacéuticas, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre i + 12, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain;
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
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Ru X, Guo Y, Bai Z, Xie X, Ma X, Zhu L, Wang K, Wang F, Yang L, Lu J. Synthesis of calcium carbonate nanoparticles in erythrocytes enables efficient removal of extracellular lead ions. Commun Chem 2019. [DOI: 10.1038/s42004-019-0199-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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11
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Comprehensive understanding of multiple binding of D-penicillamine with Cu2+-hexa aqua complex: a DFT approach. Struct Chem 2019. [DOI: 10.1007/s11224-019-01365-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Liu M, Lu X, Khan A, Ling Z, Wang P, Tang Y, Liu P, Li X. Reducing methylmercury accumulation in fish using Escherichia coli with surface-displayed methylmercury-binding peptides. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:35-42. [PMID: 30594015 DOI: 10.1016/j.jhazmat.2018.12.058] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 11/10/2018] [Accepted: 12/17/2018] [Indexed: 06/09/2023]
Abstract
Seafood consumption is widely considered as the primary route for human exposure to the neurotoxin methylmercury (MeHg) that is produced by certain anaerobic microorganisms and can bioaccumulate to high concentration levels in natural aquatic food webs. In this study, a novel methylmercury-binding peptide with seven amino acids was displayed on the cell surfaces of Escherichia coli strain W-1, which was isolated from fish feces and fused with ice nucleation protein. These cells exhibited high affinity and selectivity toward methylmercury. They efficiently removed more than 96% of 12 μM methylmercury, and accumulation of methylmercury in the engineered strain was four times higher than that in the wild type. Transmission electron microscopy confirmed methylmercury accumulation on cell membranes. Carassius auratus was fed by engineered bacteria, which showed a decrease in methylmercury concentration in muscles of about 36.3 ± 0.7%; whereas an increase in methylmercury concentration was observed in the feces (36.7 ± 0.8%) in comparison to the control group. The engineered strain in the gut captured methylmercury and prevented it's absorption by muscles, while some bacteria with methylmercury were excreted in the feces. The surface-engineered E. coli effectively protected fish from methylmercury contamination.
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Affiliation(s)
- Minrui Liu
- Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Xia Lu
- Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China; Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Aman Khan
- Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Zhenmin Ling
- Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Peng Wang
- Key laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Yu Tang
- Key laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Pu Liu
- Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Xiangkai Li
- Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.
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Yantasee W, Fryxell GE, Pattamakomsan K, Sangvanich T, Wiacek RJ, Busche B, Addleman RS, Timchalk C, Ngamcherdtrakul W, Siriwon N. Selective capture of radionuclides (U, Pu, Th, Am and Co) using functional nanoporous sorbents. JOURNAL OF HAZARDOUS MATERIALS 2019; 366:677-683. [PMID: 30580142 PMCID: PMC6927554 DOI: 10.1016/j.jhazmat.2018.12.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 11/29/2018] [Accepted: 12/13/2018] [Indexed: 06/09/2023]
Abstract
This work evaluated sorbent materials created from nanoporous silica self-assembled with monolayer (SAMMS) of hydroxypyridinone derivatives (1,2-HOPO, 3,2-HOPO, 3,4-HOPO), acetamide phosphonate (Ac-Phos), glycine derivatives (IDAA, DE4A, ED3A), and thiol (SH) for capturing of actinides and transition metal cobalt. In filtered seawater doped with competing metals (Cr, Mn, Fe, Co, Cu, Zn, Se, Mo) at levels encountered in environmental or physiological samples, 3,4-HOPO-SAMMS was best at capturing uranium (U(VI)) from pH 2-8, Ac-Phos and 1,2-HOPO-SAMMS sorbents were best at pH < 2. 3,4-HOPO-SAMMS effectively captured thorium (Th(IV)) and plutonium (239Pu(IV)) from pH 2-8, and americium (241Am(III)) from pH 5-8. Capturing cobalt (Co(II)) from filtered river water doped with competing metals (Cu, As, Ag, Cd, Hg, Tl, and Pb) was most effective from pH 5-8 with binding affinity ranged from IDAA > DE4A > ED3A > Ac-Phos > SH on SAMMS. Iminodiacetic acid (IDAA)-SAMMS was also outstanding at capturing Co(II) in ground and seawater. Within 5 min, over 99% of U(VI) and Co(II) in seawater was captured by 3,4-HOPO-SAMMS and IDAA-SAMMS, respectively. These nanoporous materials outperformed the commercially available cation sorbents in binding affinity and adsorption rate. They have great potential for water treatment and recovery of actinides and cobalt from complex matrices.
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Affiliation(s)
- Wassana Yantasee
- Department of Biomedical Engineering, Oregon Health and Science University (OHSU) School of Medicine, Portland, OR, USA.
| | - Glen E Fryxell
- Pacific Northwest National Laboratory (PNNL), Richland, WA, USA
| | | | - Thanapon Sangvanich
- Department of Biomedical Engineering, Oregon Health and Science University (OHSU) School of Medicine, Portland, OR, USA
| | - Robert J Wiacek
- Pacific Northwest National Laboratory (PNNL), Richland, WA, USA
| | - Brad Busche
- Pacific Northwest National Laboratory (PNNL), Richland, WA, USA
| | | | | | - Worapol Ngamcherdtrakul
- Department of Biomedical Engineering, Oregon Health and Science University (OHSU) School of Medicine, Portland, OR, USA
| | - Natnaree Siriwon
- Department of Biomedical Engineering, Oregon Health and Science University (OHSU) School of Medicine, Portland, OR, USA
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Naguib MM, Khairalla AS, El-Gendy AO, Elkhatib WF. Isolation and characterization of mercury-resistant bacteria from wastewater sources in Egypt. Can J Microbiol 2019; 65:308-321. [PMID: 30633555 DOI: 10.1139/cjm-2018-0379] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An important mechanism for microbial resistance to mercury is its reduction into elemental mercury (facilitated by the merA gene). Thirty-eight microbial isolates from a variety of wastewater sources in Egypt were collected. Approximately 14 of the 38 isolates exhibited not only a high degree of tolerance to mercury (up to 160 ppm) but also a high degree of resistance to other tested heavy metals (Cu, Co, Ni, and Zn). From these 14, the 10 most resistant isolates were selected for further study and were found to include 9 Gram-negative and 1 Gram-positive bacterial strains. Multi-antibiotic-resistance profiles were detected for 6 out of the 10 selected isolates. All the tested Gram-negative isolates (n = 9) harbored a plasmid-encoded merA gene. The mercury removal effectiveness for the 10 selected isolates ranged between 50% and 99.9%, among which Stenotrophomonas maltophilia ADW10 recorded the highest rate (99.9%; at an initial mercury concentration of 20 ppm). To the best of our knowledge, this is the first study to (i) demonstrate the presence of a multimetal-resistant S. maltophilia bacterium with a high mercury tolerance capacity that would make it a suitable candidate for future bioremediation efforts in heavy-metal-polluted areas in Egypt and (ii) report Pseudomonas otitidis as one of the mercury-resistant bacteria.
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Affiliation(s)
- Martha M Naguib
- a Department of Biotechnology and Life Sciences, Faculty of Post Graduate Studies for Advanced Sciences, Beni-Suef University, Beni-Suef, Egypt
| | - Ahmed S Khairalla
- b Department of Microbiology & Immunology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Ahmed O El-Gendy
- b Department of Microbiology & Immunology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Walid F Elkhatib
- c Department of Microbiology & Immunology, Faculty of Pharmacy, Ain Shams University, African Union Organization St., Abbassia 11566, Cairo, Egypt.,d Department of Microbiology and Immunology, School of Pharmacy & Pharmaceutical Industries, Badr University in Cairo, Entertainment Area, Badr City, Cairo, Egypt
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15
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Kaviani S, Shahab S, Sheikhi M, Ahmadianarog M. DFT study on the selective complexation of meso-2,3-dimercaptosuccinic acid with toxic metal ions (Cd2+, Hg2+ and Pb2+) for pharmaceutical and biological applications. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Zhai H, Wang Y, Wang M, Liu S, Yu F, Gao C, Li G, Wu Q. Construction of a Glutathione-Responsive and Silica-Based Nanocomposite for Controlled Release of Chelator Dimercaptosuccinic Acid. Int J Mol Sci 2018; 19:E3790. [PMID: 30487433 PMCID: PMC6321213 DOI: 10.3390/ijms19123790] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/24/2018] [Accepted: 11/25/2018] [Indexed: 11/16/2022] Open
Abstract
Dimercaptosuccinic acid (DMSA) is an oral heavy metal chelator. Although DMSA is the most acceptable chelator in the urinary excretion of toxic elements from children and adults, its defects in plasma binding and the membrane permeability limit its interaction with intracellular elements and affect its efficacy in chelation therapy. Herein, a novel nanocomposite composed of mesoporous silica nanoparticles (MSNs), disulfide bond, and DMSA was synthesized and characterized with a scanning/transmission electron microscope, IR and Raman spectra, and TGA analysis. The in vitro interactions with glutathione (GSH) and cellular uptake assays showed that it was able to be stable in extracellular environments such as in blood, be internalized by cells, and release DMSA inside via GSH-triggered disulfide cleavage reaction. The in vitro adsorption assays showed that MSNs-SH as its intracellular metabolite had strong adsorbability for models of Hg2+ or Pb2+. The hemolysis and cell viability assays showed that it was compatible with blood and cells even at a concentration of 1000 μg·mL-1. All above could not only enable it to be a GSH-responsive drug delivery system (DDS) for DMSA delivery but also to be a solution for its defects and efficacy. Thus, introduction of intelligent DDS might open a new avenue for DMSA-based chelation therapy.
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Affiliation(s)
- Hongqiang Zhai
- College of Pharmacy, Institutes of Environment and Medicine, Henan University, Kaifeng 475004, China.
- Institute of Medicinal Biotechnology of Medical Science & Peking Union Medical College, Beijing 100850, China.
| | - Yuli Wang
- State key laboratory of toxicology and medical countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China.
| | - Menghua Wang
- College of Pharmacy, Institutes of Environment and Medicine, Henan University, Kaifeng 475004, China.
| | - Shuai Liu
- College of Pharmacy, Institutes of Environment and Medicine, Henan University, Kaifeng 475004, China.
| | - Feifei Yu
- Institute of Medicinal Biotechnology of Medical Science & Peking Union Medical College, Beijing 100850, China.
| | - Chunsheng Gao
- State key laboratory of toxicology and medical countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China.
| | - Guiling Li
- Institute of Medicinal Biotechnology of Medical Science & Peking Union Medical College, Beijing 100850, China.
| | - Qiang Wu
- College of Pharmacy, Institutes of Environment and Medicine, Henan University, Kaifeng 475004, China.
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Van de Kerckhove K, Barr MKS, Santinacci L, Vereecken PM, Dendooven J, Detavernier C. The transformation behaviour of "alucones", deposited by molecular layer deposition, in nanoporous Al 2O 3 layers. Dalton Trans 2018; 47:5860-5870. [PMID: 29649344 DOI: 10.1039/c8dt00723c] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Nanoporous alumina films can be synthesized from hybrid organic-inorganic "alucone" films deposited by molecular layer deposition (MLD) by wet etching in deionized water or calcination in air at 500 °C. This transformation process was systematically investigated for two alucone chemistries based on ethylene glycol (EG) and glycerol (GL). Ellipsometric porosimetry (EP) was used for the characterization of the porous alumina structures that are formed as a result of the treatments. Etching in deionized water transforms both EG- and GL-alucones into porous alumina with a porosity of about 40%, albeit with a different pore structure: cylindrical pores for EG-alucones and ink-bottle structures for GL-alucones. Calcination in air up to 500 °C only successfully transformed EG-alucones into porous alumina if the chosen heating and cooling rate was lower than 200 °C h-1. Below this ramp rate, a relationship between the resulting porosity and the ramp rate was found. At the lowest investigated ramp rate of 20 °C h-1, the highest porosity of 36% was achieved. For this treatment type, the pore shape was of the ink-bottle type for all investigated ramp rates with narrow 1 nm-sized pores. Infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy revealed that the final chemistry of the porous structures was slightly different for both treatments due to trace amounts of carbon left behind by water etching. This suggests that the internal surface of the porous structure has a different termination depending on the chosen treatment. The precise thickness control and conformal nature inherent to MLD combined with the wet and heat treatments enables the coating of complex 3D structures with a porous alumina film with a well-defined thickness and pore structure.
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Affiliation(s)
- Kevin Van de Kerckhove
- Department of Solid State Sciences, Ghent University, Krijgslaan 281 S1, 9000 Ghent, Belgium.
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18
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Agaba A, Cheng H, Zhao J, Zhang C, Tebyetekerwa M, Rong L, Sui X, Wang B. Precipitated silica agglomerates reinforced with cellulose nanofibrils as adsorbents for heavy metals. RSC Adv 2018; 8:33129-33137. [PMID: 35548122 PMCID: PMC9086562 DOI: 10.1039/c8ra05611k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 09/18/2018] [Indexed: 12/19/2022] Open
Abstract
Silicon-containing compounds such as silica are effective heavy metal sorbents which can be employed in many applications. This is attributed to the porous nature of hydrothermally-stable silica, endowing such materials with high surface area and rich surface chemistry, all responsible for improving adsorption and desorption performance. However, to this day, the wide application of silica is limited by its skeletal brittleness and high production cost coupled with a risky traditional supercritical drying method. To solve the named problems, herein, precipitated silica agglomerates (referred to as PSA) was crosslinked with TEMPO-oxidized cellulose nanofibrils (TO-CNF) as a reinforcement in the presence of 3-aminopropyltriethoxysilane (APTES), via a facile dual metal synthesis approach, is reported. The resultant new silica-based sponges (TO-CNF PSA) showed desirable properties of flexibility, porosity and multifaceted sorption of various heavy metals with re-usability. The experimental results showed maximum adsorption capacities of 157.7, 33.22, 140.3 and 130.5 mg g−1 for Pb(ii), Hg(ii), Cr(iii) and Cd(ii) ions, respectively. Such a facile approach to modify silica materials by attaching active groups together with reinforcement can provide improved and reliable silica-based materials which can be applied in water treatment, gas purification, thermal insulation etc. PSA was inexpensively ameliorated by cellulose nanofibrils reinforcement. The resultant sponge with mechanically strong skeleton was evaluated as an excellent adsorbent for heavy metals.![]()
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Affiliation(s)
- Aphra Agaba
- Key Lab of Science and Technology of Eco-textile
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Huan Cheng
- Key Lab of Science and Technology of Eco-textile
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Jiangbin Zhao
- Key Lab of Science and Technology of Eco-textile
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Congcong Zhang
- Key Lab of Science and Technology of Eco-textile
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Mike Tebyetekerwa
- Research School of Engineering
- College of Engineering and Computer Science
- The Australian National University
- Canberra
- Australia
| | - Liduo Rong
- Key Lab of Science and Technology of Eco-textile
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Xiaofeng Sui
- Key Lab of Science and Technology of Eco-textile
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Bijia Wang
- Key Lab of Science and Technology of Eco-textile
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
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19
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Nagappan S, Ha HM, Park SS, Jo NJ, Ha CS. One-pot synthesis of multi-functional magnetite–polysilsesquioxane hybrid nanoparticles for the selective Fe3+ and some heavy metal ions adsorption. RSC Adv 2017. [DOI: 10.1039/c7ra00159b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Multi-functional magnetite–polysilsesquioxane (PSSQ) hybrid nanoparticles were synthesised in a one-pot approach using ferrous and ferric chlorides and various silane monomers by coprecipitation followed by a surface grafting method.
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Affiliation(s)
- Saravanan Nagappan
- Department of Polymer Science and Engineering
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Hyung Min Ha
- Department of Polymer Science and Engineering
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Sung Soo Park
- Department of Polymer Science and Engineering
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Nam-Ju Jo
- Department of Polymer Science and Engineering
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Chang-Sik Ha
- Department of Polymer Science and Engineering
- Pusan National University
- Busan 46241
- Republic of Korea
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20
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Sarkar K, Ansari Z, Sen K. Detoxification of Hg(II) from aqueous and enzyme media: Pristine vs. tailored calcium alginate hydrogels. Int J Biol Macromol 2016; 91:165-73. [DOI: 10.1016/j.ijbiomac.2016.05.049] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 05/05/2016] [Accepted: 05/12/2016] [Indexed: 12/23/2022]
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21
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Ghazaryan L, Kley EB, Tünnermann A, Szeghalmi A. Nanoporous SiO2 thin films made by atomic layer deposition and atomic etching. NANOTECHNOLOGY 2016; 27:255603. [PMID: 27176497 DOI: 10.1088/0957-4484/27/25/255603] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A new route to prepare nanoporous SiO2 films by mixing atomic-layer-deposited alumina and silica in an Å-scale is presented. The selective removal of Al2O3 from the composites using wet chemical etching with phosphoric acid resulted in nanoporous thin SiO2 layers. A diffusion-controlled dissolution mechanism is identified whereby an interesting reorganization of the residual SiO2 is observed. The atomic scale oxide mixing is decisive in attaining and tailoring the film porosity. The porosity and the refractive index of nanoporous silica films were tailored from 9% to 69% and from 1.40 to 1.13, respectively. The nanoporous silica was successfully employed as antireflection coatings and as diffusion membranes to encapsulate nanostructures.
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Affiliation(s)
- Lilit Ghazaryan
- Institute of Applied Physics, Abbe Center of Photonics, Albert-Einstein-Straße 15, D-07745, Jena, Germany
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22
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Ash T, Debnath T, Banu T, Das AK. Exploration of Binding Interactions of Cu2+ with d-Penicillamine and its O- and Se- Analogues in Both Gas and Aqueous Phases: A Theoretical Approach. J Phys Chem B 2016; 120:3467-78. [DOI: 10.1021/acs.jpcb.5b11825] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tamalika Ash
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India
| | - Tanay Debnath
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India
| | - Tahamida Banu
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India
| | - Abhijit K. Das
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India
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23
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Thiol-Functionalized Mesoporous Silica for Effective Trap of Mercury in Rats. JOURNAL OF NANOMATERIALS 2016. [DOI: 10.1155/2016/9758264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The chance of exposure to heavy metal for human being rises severely today due to the increasing water contamination and air pollution. Here, we prepared a series of thiol-functionalized mesoporous silica as oral formulation for the prevention and treatment of heavy metal poisoning. The successful incorporation of thiol was verified by the FTIR spectra. SBA15-SH-10 was used for the study as it is of uniform mesopores and fine water dispersibility. In simulated gastrointestinal fluid, the thiol-functionalized mesoporous silica can selectively capture heavy metal, showing a very high affinity for inorganic mercury (II). The blood and urine mercury levels of rats fed with a diet containing Hg (II) and material were significantly lower than those of rats fed with the metal-rich diet only. On the contrary, the mercury content in fecal excretion of the treatment group increased more than twice as much as that of the control group. This result indicated that SBA15-SH-10 could effectively remove mercury (II)in vivoand the mercury loaded on SBA15-SH-10 would be excreted out. Hence, SBA15-SH-10 has potential application in preventing and treating heavy metal poisoningviadigestive system.
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24
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Huang W, Zhang P, Xu H, Chang S, He Y, Wang F, Liang G. A novel route for the removal of bodily heavy metal lead (II). NANOTECHNOLOGY 2015; 26:385101. [PMID: 26317506 DOI: 10.1088/0957-4484/26/38/385101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The lead ion concentration in bile is considerably higher than in blood, and bile is released into the alimentary tract. Thiol-modified SBA-15 administered orally can combine with lead ions in the alimentary tract. In this paper, the in vitro lead absorption of bile was investigated. This thiol-modified SBA-15 material was used in pharmacodynamics studies on rabbits. The result that the lead content in faeces was notably higher indicates that thiol-modified SBA-15 can efficiently remove lead. The mechanism could include the following: thiol-modified SBA-15 material cuts off the heavy metal lead recirculation in the process of bile enterohepatic circulation by chelating the lead in the alimentary tract, causing a certain proportion of lead to be removed by the thiol mesoporous material, and the lead is subsequently egested out of the body in faeces. The results indicate that this material might be a potential non-injection material for the removal bodily heavy metal lead in the alimentary tract. This material may also be a useful means of lead removal, especially for non-acute sub-poisoning symptoms.
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Affiliation(s)
- Weirong Huang
- Laboratory of Nano-Biology Technology, Central South University, Changsha, 410083, People's Republic of China. School of Physics and Electronics Changsha University of Science and Technology, Changsha, 410004, People's Republic of China
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25
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Kinoshita H, Ohtake F, Ariga Y, Kimura K. Comparison and characterization of biosorption by Weissella viridescens MYU 205 of periodic group 12 metal ions. Anim Sci J 2015. [PMID: 26223952 DOI: 10.1111/asj.12425] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Because heavy metals cause various health hazards, we studied biosorption by Weissella viridescens MYU 205. MYU 205 showed high biosorption for Cd (II) and Hg (II) and was low for Zn (II). The Hg (II) biosorption rate was high at about 80%. Different biosorptions were shown for each metal after successive incubation. About 20% of the Zn (II) biosorption was observed after 3 h. Cd (II) biosorption increased in a time-dependent manner until 3 h, then gradually decreased. Hg (II) was immediately sorbed at 79.6 ± 4.7% and decreased at 3 h to 52.9 ± 2.6%, and then gradually increased to 77.8 ± 3.6%. Using heat-killed cells, the rate of biosorption of Zn (II) and Cd (II) decreased whereas Hg (II) tended to increase. The metal resistance was high, that is Zn (II) > Cd (II) > Hg (II); while the affinity was opposite where MYU 205 showed high affinity to Hg (II) and low affinity to Zn (II). Our data shows lactic acid bacteria may be powerful heavy metal sorbents for detoxification.
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Affiliation(s)
- Hideki Kinoshita
- Department of Food Management, School of Food, Agricultural and Environmental Sciences, Miyagi University, Sendai, Japan
| | - Fumika Ohtake
- Department of Food Management, School of Food, Agricultural and Environmental Sciences, Miyagi University, Sendai, Japan
| | - Yuuki Ariga
- Department of Food Management, School of Food, Agricultural and Environmental Sciences, Miyagi University, Sendai, Japan
| | - Kazuhiko Kimura
- Department of Food Management, School of Food, Agricultural and Environmental Sciences, Miyagi University, Sendai, Japan
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26
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Zhang Y, Yan W, Sun Z, Pan C, Mi X, Zhao G, Gao J. Fabrication of porous zeolite/chitosan monoliths and their applications for drug release and metal ions adsorption. Carbohydr Polym 2015; 117:657-665. [DOI: 10.1016/j.carbpol.2014.09.018] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 08/14/2014] [Accepted: 09/01/2014] [Indexed: 10/24/2022]
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27
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Venkateswarlu S, Yoon M. Rapid removal of cadmium ions using green-synthesized Fe3O4 nanoparticles capped with diethyl-4-(4 amino-5-mercapto-4H-1,2,4-triazol-3-yl)phenyl phosphonate. RSC Adv 2015. [DOI: 10.1039/c5ra10628a] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Water-dispersible diethyl-4-(4-amino-5-mercapto-4H-1,2,4-triazol-3-yl)phenyl phosphonate (DEAMTPP)-capped biogenic Fe3O4 magnetic nanocomposite has been synthesized using Ananas comosus peel pulp extract for rapid removal of Cd(ii) ions from water.
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Affiliation(s)
- Sada Venkateswarlu
- Department of Nanochemistry
- College of Bionano
- Gachon University
- Sungnam
- Republic of Korea
| | - Minyoung Yoon
- Department of Nanochemistry
- College of Bionano
- Gachon University
- Sungnam
- Republic of Korea
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28
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Zhang X, Wu T, Zhang Y, Ng DHL, Zhao H, Wang G. Adsorption of Hg2+ by thiol functionalized hollow mesoporous silica microspheres with magnetic cores. RSC Adv 2015. [DOI: 10.1039/c5ra05184c] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Thiol functionalized hollow mesoporous silica spheres with magnetic cores were synthesized and found to be highly selective adsorbents of Hg2+.
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Affiliation(s)
- Xian Zhang
- Key Laboratory of Materials Physics
- Centre for Environmental and Energy Nanomaterials
- Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
| | - Tianxing Wu
- Key Laboratory of Materials Physics
- Centre for Environmental and Energy Nanomaterials
- Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
| | - Yunxia Zhang
- Key Laboratory of Materials Physics
- Centre for Environmental and Energy Nanomaterials
- Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
| | - Dickon H. L. Ng
- Department of Physics
- The Chinese University of Hong Kong
- Hong Kong
- China
| | - Huijun Zhao
- Key Laboratory of Materials Physics
- Centre for Environmental and Energy Nanomaterials
- Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
| | - Guozhong Wang
- Key Laboratory of Materials Physics
- Centre for Environmental and Energy Nanomaterials
- Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
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29
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Zhang Y, Gao C, Zhao W, Zhou Z, Yan W, Li X, Liu Y, Sun Z, Zhao G, Gao J. Fabrication of chitosan/gelatin foams with ordered porous structures for use in drug release and metal ion adsorption. RSC Adv 2014. [DOI: 10.1039/c4ra04212c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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30
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Sangvanich T, Ngamcherdtrakul W, Lee R, Morry J, Castro D, Fryxell GE, Yantasee W. Nanoporous sorbent material as an oral phosphate binder and for aqueous phosphate, chromate, and arsenate removal. ACTA ACUST UNITED AC 2014; 5. [PMID: 25554735 DOI: 10.4172/2157-7439.1000222] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Phosphate removal is both biologically and environmentally important. Biologically, hyperphosphatemia is a critical condition in end-stage chronic kidney disease patients. Patients with hyperphosphatemia are treated long-term with oral phosphate binders to prevent phosphate absorption to the body by capturing phosphate in the gastrointestinal (GI) tract followed by fecal excretion. Environmentally, phosphate levels in natural water resources must be regulated according to limits set forth by the US Environmental Protection Agency. By utilizing nanotechnology and ligand design, we developed a new material to overcome limitations of traditional sorbent materials such as low phosphate binding capacity, slow binding kinetics, and negative interference by other anions. A phosphate binder based on iron-ethylenediamine on nanoporous silica (Fe-EDA-SAMMS) has been optimized for substrates and Fe(III) deposition methods. The Fe-EDA-SAMMS material had a 4-fold increase in phosphate binding capacity and a broader operating pH window compared to other reports. The material had a faster phosphate binding rate and was significantly less affected by other anions than Sevelamer HCl, the gold standard oral phosphate binder, and AG® 1-X8, a commercially available anion exchanger. It had less cytotoxicity to Caco-2 cells than lanthanum carbonate, another prescribed oral phosphate binder. The Fe-EDA-SAMMS also had high capacity for arsenate and chromate, two of the most toxic anions in natural water.
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Affiliation(s)
- Thanapon Sangvanich
- Department of Biomedical Engineering, Oregon Health & Science University (OHSU), Portland, Oregon, USA
| | - Worapol Ngamcherdtrakul
- Department of Biomedical Engineering, Oregon Health & Science University (OHSU), Portland, Oregon, USA
| | - Richard Lee
- Department of Biomedical Engineering, Oregon Health & Science University (OHSU), Portland, Oregon, USA
| | - Jingga Morry
- Department of Biomedical Engineering, Oregon Health & Science University (OHSU), Portland, Oregon, USA
| | - David Castro
- Department of Biomedical Engineering, Oregon Health & Science University (OHSU), Portland, Oregon, USA ; PDX Pharmaceuticals, LLC, Lake Oswego, Oregon
| | - Glen E Fryxell
- Battelle Distinguished Inventor, Kennewick, Washington, USA
| | - Wassana Yantasee
- Department of Biomedical Engineering, Oregon Health & Science University (OHSU), Portland, Oregon, USA ; PDX Pharmaceuticals, LLC, Lake Oswego, Oregon
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