1
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Srivastava A, Naik RM, Rai J, Kumar I, Yaseen B, Gangwar C. Kinetic study of Hg(
II
)‐promoted substitution of cyanide from hexacyanoferrate(
II
) in an anionic surfactant medium by 2,2′‐bipyridine. J SURFACTANTS DETERG 2022. [DOI: 10.1002/jsde.12622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Radhey Mohan Naik
- Department of Chemistry Lucknow University Lucknow Uttar Pradesh India
| | - Jyoti Rai
- Department of Chemistry Lucknow University Lucknow Uttar Pradesh India
| | - Indresh Kumar
- Department of Chemistry Lucknow University Lucknow Uttar Pradesh India
| | - Bushra Yaseen
- Department of Chemistry Lucknow University Lucknow Uttar Pradesh India
| | - Chinky Gangwar
- Department of Chemistry Lucknow University Lucknow Uttar Pradesh India
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2
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Bhattacharya S, Bhattacharya K, Xavier VJ, Ziarati A, Picard D, Bürgi T. The Atomically Precise Gold/Captopril Nanocluster Au 25(Capt) 18 Gains Anticancer Activity by Inhibiting Mitochondrial Oxidative Phosphorylation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:29521-29536. [PMID: 35729793 PMCID: PMC9266621 DOI: 10.1021/acsami.2c05054] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Atomically precise gold nanoclusters (AuNCs) are an emerging class of quantum-sized nanomaterials with well-defined molecular structures and unique biophysical properties, rendering them highly attractive for biological applications. We set out to study the impact of different ligand shells of atomically similar nanoclusters on cellular recognition and response. To understand the effects of atomically precise nanoclusters with identical composition on cells, we selected two different water-soluble gold nanoclusters protected with captopril (Capt) and glutathione (GSH): Au25(Capt)18 (CNC) and Au25(GSH)18 (GNC), respectively. We demonstrated that a change of the ligand of the cluster completely changes its biological functions. Whereas both nanoclusters are capable of internalization, only CNC exhibits remarkable cytotoxicity, more specifically on cancer cells. CNC shows enhanced cytotoxicity by inhibiting the OXPHOS of mitochondria, possibly by inhibiting the ATP synthase complex of the electron transport chain (ETC), and by initiating the leakage of electrons into the mitochondrial lumen. The resulting increase in both mitochondrial and total cellular ROS triggers cell death indicated by the appearance of cellular markers of apoptosis. Remarkably, this effect of nanoclusters is independent of any external light source excitation. Our findings point to the prevailing importance of the ligand shell for applications of atomically precise nanoclusters in biology and medicine.
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Affiliation(s)
- Sarita
Roy Bhattacharya
- Department
of Physical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva, Switzerland
| | - Kaushik Bhattacharya
- Department
of Molecular and Cellular Biology, University
of Geneva, Sciences III, Geneva 1205, Switzerland
| | - Vanessa Joanne Xavier
- Department
of Molecular and Cellular Biology, University
of Geneva, Sciences III, Geneva 1205, Switzerland
| | - Abolfazl Ziarati
- Department
of Physical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva, Switzerland
| | - Didier Picard
- Department
of Molecular and Cellular Biology, University
of Geneva, Sciences III, Geneva 1205, Switzerland
| | - Thomas Bürgi
- Department
of Physical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva, Switzerland
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3
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Ratiometric fluorescence and colorimetric dual-mode sensing platform based on carbon dots for detecting copper(II) ions and D-penicillamine. Anal Bioanal Chem 2022; 414:1651-1662. [DOI: 10.1007/s00216-021-03789-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 10/27/2021] [Accepted: 11/11/2021] [Indexed: 11/01/2022]
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4
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Lim JV, Bee ST, Tin Sin L, Ratnam CT, Abdul Hamid ZA. A Review on the Synthesis, Properties, and Utilities of Functionalized Carbon Nanoparticles for Polymer Nanocomposites. Polymers (Basel) 2021; 13:polym13203547. [PMID: 34685309 PMCID: PMC8538275 DOI: 10.3390/polym13203547] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/06/2021] [Accepted: 10/09/2021] [Indexed: 12/22/2022] Open
Abstract
Carbon can form different allotropes due to its tetravalency. Different forms of carbon such as carbon nanotubes (CNTs), carbon nanofibers, graphene, fullerenes, and carbon black can be used as nanofillers in order to enhance the properties of polymer nanocomposites. These carbon nanomaterials are of interest in nanocomposites research and other applications due to their excellent properties, such as high Young’s Modulus, tensile strength, electrical conductivity, and specific surface area. However, there are some flaws that can be found in the carbon nanoparticles such as tendency to agglomerate, insoluble in aqueous or organic solvents or being unreactive with the polymer surface. In this study, the aim is to study functionalization in order to rectify some of these shortcomings by attaching different functional groups or particles to the surface of these carbon nanoparticles; this also enables the synthesis of high-performance polymer nanocomposites. The main findings include the effects of functionalization on carbon nanoparticles and the applications of polymer nanocomposites with carbon nanoparticles as nanofillers in the industry. Additionally, the different methods used to produce polymer composites such as in situ polymerization, solution mixing and melt blending are studied, as these methods involve the dispersion of carbon nanofillers within the polymer matrix.
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Affiliation(s)
- Jun-Ven Lim
- Department of Mechanical and Material Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Bandar Sungai Long, Kajang 43000, Selangor, Malaysia;
| | - Soo-Tueen Bee
- Department of Mechanical and Material Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Bandar Sungai Long, Kajang 43000, Selangor, Malaysia;
- Correspondence: or (S.-T.B.); or (L.T.S.)
| | - Lee Tin Sin
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Bandar Sungai Long, Kajang 43000, Selangor, Malaysia
- Correspondence: or (S.-T.B.); or (L.T.S.)
| | - Chantara Thevy Ratnam
- Radiation Processing Technology Division Malaysian Nuclear Agency, Bangi, Kajang 43000, Selangor, Malaysia;
| | - Zuratul Ain Abdul Hamid
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Pulau Pinang, Malaysia;
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5
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Cao Y, Khan A, Balakheyli H, Lup ANK, Ramezani Taghartapeh M, Mirzaei H, Reza Khandoozi S, Soltani A, Aghaei M, Heidari F, Sarkar SM, Albadarin AB. Penicillamine functionalized B12N12 and B12CaN12 nanocages act as potential inhibitors of proinflammatory cytokines: A combined DFT analysis, ADMET and molecular docking study. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103200] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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6
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Yang J, Tang W, Yuan R, Chen Y, Wang J, Wu Y, Yin WJ, Yuan N, Ding J, Zhang WH. Defect mitigation using d-penicillamine for efficient methylammonium-free perovskite solar cells with high operational stability. Chem Sci 2020; 12:2050-2059. [PMID: 34163967 PMCID: PMC8179333 DOI: 10.1039/d0sc06354a] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Trap-dominated non-radiative charge recombination is one of the key factors that limit the performance of perovskite solar cells (PSCs), which was widely studied in methylammonium (MA) containing PSCs. However, there is a need to elucidate the defect chemistry of thermally stable, MA-free, cesium/formamidinium (Cs/FA)-based perovskites. Herein, we show that d-penicillamine (PA), an edible antidote for treating heavy metal ions, not only effectively passivates the iodine vacancies (Pb2+ defects) through coordination with the -SH and -COOH groups in PA, but also finely tunes the crystallinity of Cs/FA-based perovskite film. Benefiting from these merits, a reduction of non-radiative recombination and an increase in photoluminescence lifetime have been achieved. As a result, the champion MA-free device exhibits an impressive power conversion efficiency (PCE) of 22.4%, an open-circuit voltage of 1.163 V, a notable fill factor of 82%, and excellent long-term operational stability. Moreover, the defect passivation strategy can be further extended to a mini module (substrate: 4 × 4 cm2, active area: 7.2 cm2) as well as a wide-bandgap (∼1.73 eV) Cs/FA perovskite system by delivering PCEs of 16.3% and 20.2%, respectively, demonstrating its universality in defect passivation for efficient PSCs.
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Affiliation(s)
- Jianchao Yang
- Sichuan Research Center of New Materials, Institute of Chemical Materials, China Academy of Engineering Physics 596 Yinhe Road, Shuangliu Chengdu 610200 China .,Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University Changzhou 213164 China
| | - Weijian Tang
- Sichuan Research Center of New Materials, Institute of Chemical Materials, China Academy of Engineering Physics 596 Yinhe Road, Shuangliu Chengdu 610200 China
| | - Ruihan Yuan
- Sichuan Research Center of New Materials, Institute of Chemical Materials, China Academy of Engineering Physics 596 Yinhe Road, Shuangliu Chengdu 610200 China
| | - Yu Chen
- Sichuan Research Center of New Materials, Institute of Chemical Materials, China Academy of Engineering Physics 596 Yinhe Road, Shuangliu Chengdu 610200 China
| | - Jing Wang
- College of Energy, Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University Suzhou 215006 China
| | - Yihui Wu
- Sichuan Research Center of New Materials, Institute of Chemical Materials, China Academy of Engineering Physics 596 Yinhe Road, Shuangliu Chengdu 610200 China
| | - Wan-Jian Yin
- College of Energy, Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University Suzhou 215006 China
| | - Ningyi Yuan
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University Changzhou 213164 China
| | - Jianning Ding
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University Changzhou 213164 China .,Micro/Nano Science and Technology Center, Jiangsu University Zhenjiang 212013 China
| | - Wen-Hua Zhang
- Sichuan Research Center of New Materials, Institute of Chemical Materials, China Academy of Engineering Physics 596 Yinhe Road, Shuangliu Chengdu 610200 China
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7
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Yadav R, Naik RM. The kinetics and mechanism of the ligand substitution reaction of aquapentacyanoruthenate(II) with d-penicillamine in aqueous medium. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820961015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The kinetics of the formation of the light orange–coloured complex [Ru(CN)5D-PA]3− are studied spectrophotometrically through substitution of a coordinated H2O molecule in aquapentacyanoruthenate(II) [Ru(CN)5OH2]3− by interaction with D-penicillamine [D-PA] in aqueous medium at 490 nm (λmax of [Ru(CN)5D-PA]3−). The reaction is monitored under pseudo-first-order conditions, taking [D-PA] in excess over [Ru(CN)5OH23−]. The effects of various reaction parameters on the rate of the reaction are investigated. Experimental observations reveal that the variation in [D-PA] obeyed the first-order rate law while it is found to be invariant with [Ru(CN)5OH23−] in the whole experimental range. With ionic strength variation, as the reaction advances a decrease in the reaction rate is noticed. The product stoichiometry is assigned as 1:1. The ease of substitution at an H2O molecule in [Ru(CN)5OH23−] is considered on the basis of the electronic effect generated through interactions of the M–OH2 bond. A provisional mechanism based on the calculated results is proposed based on the slowest step of the reaction.
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Affiliation(s)
- Rupal Yadav
- Department of Chemistry, University of Lucknow, Lucknow, India
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8
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Rastogi R, Srivastava A, Naik RM. Kinetic and mechanistic analysis of ligand substitution of aquapentacyanoruthenate(II) in SDS medium by 4,4′bipyridine. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2019.1614042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Richa Rastogi
- Department of Chemistry, Lucknow University, Lucknow, U.P., India
| | | | - R. M. Naik
- Department of Chemistry, Lucknow University, Lucknow, U.P., India
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9
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An optical sensor based on inner filter effect using green synthesized carbon dots and Cu(II) for selective and sensitive penicillamine determination. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1518-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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10
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Fluorescent MUA-stabilized Au nanoclusters for sensitive and selective detection of penicillamine. Anal Bioanal Chem 2018; 410:2629-2636. [DOI: 10.1007/s00216-018-0936-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 01/28/2018] [Accepted: 02/01/2018] [Indexed: 01/09/2023]
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11
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Jafari M, Tashkhourian J, Absalan G. Electrochemical sensing of D-penicillamine on modified glassy carbon electrode by using a nanocomposite of gold nanoparticles and reduced graphene oxide. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1076-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Müller P, Hermans I. Applications of Modulation Excitation Spectroscopy in Heterogeneous Catalysis. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b04855] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Philipp Müller
- Department of Chemistry & Department of Chemical Engineering, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Ive Hermans
- Department of Chemistry & Department of Chemical Engineering, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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13
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Mahajan PG, Kolekar GB, Patil SR. Recognition of D-Penicillamine Using Schiff Base Centered Fluorescent Organic Nanoparticles and Application to Medicine Analysis. J Fluoresc 2017; 27:829-839. [DOI: 10.1007/s10895-016-2019-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 12/29/2016] [Indexed: 10/20/2022]
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14
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Kandanapitiye MS, Gunathilake C, Jaroniec M, Huang SD. Biocompatible D-Penicillamine Conjugated Au Nanoparticles: Targeting Intracellular Free Copper Ions for Detoxification. J Mater Chem B 2015; 3:5553-5559. [PMID: 26213624 PMCID: PMC4510992 DOI: 10.1039/c5tb00189g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High thiophillicicity of the Au-nanoparticle (Au NP) surface leads to covalent attachment of D-penicillamine molecules to Au NPs to form biocompatible D-penicillamine conjugated Au NPs. The latter are highly water-dispersible, exhibit no cytotoxicity, and can readily penetrate the cell membrane to target intracellular free copper ions for selective copper detoxification in the presence of the other divalent essential metal ions including Zn(II), Fe(II), Mn(II), Ca(II), and Mg(II), thus opening up a new avenue for improving the efficacy and pharmacokinetics of D-penicillamine, an important clinical drug currently used to treat the copper overload-related diseases and disorders.
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Affiliation(s)
| | - Chamila Gunathilake
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44240, USA
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44240, USA
| | - Songping D. Huang
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44240, USA
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15
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Zhai Y, Zhuang H, Pei M, Zhang G, Li H. The development of a conjugated polyelectrolytes derivative based fluorescence switch and its application in penicillamine detection. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2014.12.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Wang P, Li BL, Li NB, Luo HQ. A fluorescence detection of D-penicillamine based on Cu(2+)-induced fluorescence quenching system of protein-stabilized gold nanoclusters. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 135:198-202. [PMID: 25064503 DOI: 10.1016/j.saa.2014.06.082] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 04/24/2014] [Accepted: 06/01/2014] [Indexed: 06/03/2023]
Abstract
In this contribution, a luminescent gold nanoclusters which were synthesized by bovine serum albumin as novel fluorescent probes were successfully utilized for the determination of D-penicillamine for the first time. Cupric ion was employed to quench the strong fluorescence of the gold nanoclusters, whereas the addition of D-penicillamine caused obvious restoration of fluorescence intensity of the Cu(2+)-gold nanoclusters system. Under optimum conditions, the increment in fluorescence intensity of Cu(2+)-gold nanoclusters system caused by D-penicillamine was linearly proportional to the concentration of D-penicillamine in the range of 2.0×10(-5)-2.39×10(-4) M. The detection limit for D-penicillamine was 5.4×10(-6) M. With the off-on fluorescence signal at 650 nm approaching the near-infrared region, the present sensor for D-penicillamine detection had high sensitivity and low spectral interference. Furthermore, the novel gold nanoclusters-based fluorescent sensor has been applied to the determination of D-penicillamine in real biological samples with satisfactory results.
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Affiliation(s)
- Peng Wang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Bang Lin Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Nian Bing Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Hong Qun Luo
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
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17
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Bai J, Wang T, Wang Y, Jiang X. Effects of nanoparticle surface ligands on protein adsorption and subsequent cytotoxicity. Biomater Sci 2014; 2:493-501. [DOI: 10.1039/c3bm60224a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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18
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Ock KS, Dembereldorj U, Park J, Ganbold EO, Kim S, Shin HC, Joo SW. Temperature-dependent structural change of D-penicillamine-capped chiral gold nanoparticles investigated by infrared spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 102:419-424. [PMID: 23261512 DOI: 10.1016/j.saa.2012.10.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 04/24/2012] [Accepted: 10/14/2012] [Indexed: 06/01/2023]
Abstract
The structure and stability of D-penicillamine-capped gold nanoparticles (d-Pen Au NPs) were studied using spectroscopic tools. The synthesis of d-Pen Au NPs was examined using high-resolution transmission electron microscopy (HR-TEM), UV-vis absorption spectroscopy, and circular dichroism (CD). Temperature-dependent reversible structural changes of d-Pen Au NPs were observed using infrared spectroscopic tools. The three thiol, carboxyl, and amino binding groups of d-Pen were presumed to interact with Au NP surfaces on the basis of the infrared spectral features. d-Pen appeared to form quite a stable structure and desorb at a high temperature above 453 K on Au NPs. Our deconvolution analysis indicated the ν(s)(COO(-)) and ν(as)(COO(-)) carboxylate bands at ∼1,392 and ∼1,560 cm(-1) appeared to be weakened, whereas the amino band at ∼1,595 cm(-1) remained strong in increasing the temperature from 293 to 373 K. On the other hand, the intensities of the zwitter ionic bands at ∼999, ∼1,117, and ∼1,631 cm(-1) for NH(3)(+) appeared to decrease presumably due to the deprotonation process at 373 K. Our infrared spectroscopic study suggests that the deprotonated amino groups bind stronger, whereas the intra-carboxylate bonds become weaker as the temperature increase. Such structural changes of d-Pen Au NPs appeared to be reversible between 293 and 373 K.
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Affiliation(s)
- Kwang-Su Ock
- Department of Chemistry, Soongsil University, Seoul 156-743, Republic of Korea
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19
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Cao F, Wang L, Jiang X, Guo LP. Investigation of the effects of surface chemistry on adsorption of albumin by surface-enhanced FTIR spectroscopy. RSC Adv 2013. [DOI: 10.1039/c3ra40665b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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20
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Naik RM, Kumar B. Kinetics and Mechanism of Formation of [Fe(CN) 5D-PA] 3−by Ligand Substitution Reaction in the Presence of Surfactant Micelle in Acidic Media. J DISPER SCI TECHNOL 2012. [DOI: 10.1080/01932691.2011.579823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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21
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Wang T, Bai J, Jiang X, Nienhaus GU. Cellular uptake of nanoparticles by membrane penetration: a study combining confocal microscopy with FTIR spectroelectrochemistry. ACS NANO 2012; 6:1251-9. [PMID: 22250809 DOI: 10.1021/nn203892h] [Citation(s) in RCA: 239] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
It is well-known that nanomaterials are capable of entering living cells, often by utilizing the cells' endocytic mechanisms. Passive penetration of the lipid bilayer may, however, occur as an alternative process. Here we have focused on the passive transport of small nanoparticles across the plasma membranes of red blood cells, which are incapable of endocytosis. By using fluorescence microscopy, we have observed that zwitterionic quantum dots penetrate through the cell membranes so that they can be found inside the cells. The penetration-induced structural changes of the lipid bilayer were explored by surface-enhanced infrared absorption spectroscopy and electrochemistry studies of model membranes prepared on solid supports with lipid compositions identical to those of red blood cell membranes. A detailed analysis of the infrared spectra revealed a markedly enhanced flexibility of the lipid bilayers in the presence of nanoparticles. The electrochemistry data showed that the overall membrane structure remained intact; however, no persistent holes were formed in the bilayers.
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Affiliation(s)
- Tiantian Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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22
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Chen J, Myerson AS. Pasteur revisited: chiral separation by crystallization on self-assembled monolayers. CrystEngComm 2012. [DOI: 10.1039/c2ce26415c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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23
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Singh A, Myerson AS. Chiral Self Assembled Monolayers as Resolving Auxiliaries in the Crystallization of Valine. J Pharm Sci 2010; 99:3931-40. [DOI: 10.1002/jps.22237] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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24
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Mazloum-Ardakani M, Beitollahi H, Taleat Z, Naeimi H, Taghavinia N. Selective voltammetric determination of d-penicillamine in the presence of tryptophan at a modified carbon paste electrode incorporating TiO2 nanoparticles and quinizarine. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2010.02.034] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Kang YJ, Oh JW, Kim YR, Kim JS, Kim H. Chiral gold nanoparticle-based electrochemical sensor for enantioselective recognition of 3,4-dihydroxyphenylalanine. Chem Commun (Camb) 2010; 46:5665-7. [DOI: 10.1039/c0cc01071e] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Choi EY, Han TH, Hong J, Kim JE, Lee SH, Kim HW, Kim SO. Noncovalent functionalization of graphene with end-functional polymers. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b919074k] [Citation(s) in RCA: 490] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Hardesty JO, Cascão-Pereira L, Kellis JT, Robertson CR, Frank CW. Enzymatic proteolysis of a surface-bound alpha-helical polypeptide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:13944-13956. [PMID: 19360953 DOI: 10.1021/la8020386] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this work, we studied the interactions of enzymes with model substrate surfaces using label-free techniques. Our model system was based on serine proteases (a class of enzymes that digests proteins) and surface-bound polypeptide substrates. While previous studies have focused on bulk media factors such as pH, ionic strength, and surfactants, this study focuses on the role of the surface-bound substrate itself. In particular, we assess how the substrate density of a polypeptide with an alpha-helical secondary structure influences surface reactivity. An alpha-helical secondary structure was chosen based on literature indicating that stable alpha-helices can resist enzymatic digestion. To investigate the protease resistance of a surface-bound a-helix, we designed an a-helical polypeptide (SS-polypeptide, where SS = disulfide), used it to form films of varying surface coverage and then measured responses of the films to enzymatic exposure. Using quartz-crystal microbalance with dissipation (QCM-D), angle-resolved X-ray photoelectron spectroscopy (AR-XPS), grazing-angle infrared spectroscopy (GAIRS), and other techniques, we characterized the degradation of films to determine how the lateral packing density of the surface-bound SS-polypeptide substrate affected surface proteolysis. Characterization of pure SS-polypeptide films indicated dense packing of helices that maintained their helical structure and were generally oriented normal to the surface. We found that films of pure SS-polypeptide significantly resisted enzymatic digestion, while incorporation of very minor amounts of a diluent in such films resulted in rapid digestion. In part, this may be due to the need for the enzyme to bind several peptides along the peptide substrate within the cleft for digestion to occur. Only SS-polypeptide films that were densely packed and did not permit catalytic access to multiple peptides (e.g., terminal peptides only) were resistant to enzymatic proteolysis.
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Affiliation(s)
- Jasper O Hardesty
- Biochemistry Department, Genencor International, Palo Alto, California 94304, USA
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Lee SH, Park JS, Koo CM, Lim BK, Kim SO. Self-organized grafting of carbon nanotubes by end-functionalized polymers. Macromol Res 2008. [DOI: 10.1007/bf03218862] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Surface Modification and Functionalization of Metal and Metal Oxide Nanoparticles by Organic Ligands. MONATSHEFTE FUR CHEMIE 2008. [DOI: 10.1007/s00706-007-0775-2] [Citation(s) in RCA: 294] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Yang X, Yuan H, Wang C, Su X, Hu L, Xiao D. Determination of penicillamine in pharmaceuticals and human plasma by capillary electrophoresis with in-column fiber optics light-emitting diode induced fluorescence detection. J Pharm Biomed Anal 2007; 45:362-6. [PMID: 17606355 DOI: 10.1016/j.jpba.2007.05.017] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2007] [Revised: 04/18/2007] [Accepted: 05/20/2007] [Indexed: 10/23/2022]
Abstract
In this paper, a capillary electrophoresis (CE) system with in-column fiber optics light-emitting diode (LED) induced fluorescence detection was developed for the determination of penicillamine (PA). The influence of buffer concentration, buffer pH, applied voltage and injection time was systematically investigated. Optimum separation conditions were obtained with 10 mM borate buffer at pH 9.1, applied voltage 20 kV and 8 s hydrodynamic injection at 30 mbar. The detection system displayed linear dynamic range from 3.2 x 10(-7) to 4.8 x 10(-5) mol L(-1) with a correlation coefficient of 0.9991 and good repeatability (R.S.D.=2.46%). The method was applied to the determination of PA in commercial tablets and human plasma, which the recoveries of standard PA added to tablets and human plasma sample were found to be in the range of 96.26-102.68 and 91.10-99.35%, respectively. The proposed method is cheap, rapid, easy, and accurate, and can be successfully applied to the formulation analysis and bioanalysis.
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Affiliation(s)
- Xiupei Yang
- College of Chemistry and College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
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