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There have been many efforts to synthesize advanced materials that are capable of real-time specific recognition of a molecular target, and allow the quantification of a variety of biomolecules. Scaffold materials have a porous structure, with a high surface area and their intrinsic nanocavities can accommodate cells and macromolecules. The three-dimensional structure (3D) of scaffolds serves not only as a fibrous structure for cell adhesion and growth in tissue engineering, but can also provide the controlled release of drugs and other molecules for biomedical applications. There has been a limited number of reports on the use of scaffold materials in biomedical sensing applications. This review highlights the potential of scaffold materials in the improvement of sensing platforms and summarizes the progress in the application of novel scaffold-based materials as sensor, and discusses their advantages and limitations. Furthermore, the influence of the scaffold materials on the monitoring of infectious diseases such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and bacterial infections, was reviewed.
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Ethambutol hydrocloride (EMB) is an anti-tuberculosis drug, which is commonly used as a protection agent against of unrecognized resistance to other drugs employed to treat this disease. Since oral form of EMB has some side effects and cellular toxicity, direct administration of EMB into lungs seems to be an attractive and reasonable option in order to overcome these side effects. Our main goal in this study was assessment of pulmonary administration through dry powder inhaler (DPI) using EMB-loaded solid lipid nanoparticles (SLNs). We prepared EMB-loaded SLNs using two techniques (hot homogenization and ultrasonication). DPI formulations were made by spray drying of EMB-loaded SLNs with and without mannitol. For investigation of flowbility of the prepared powders, Carr's index and Hausner ratio, and for in vitro deposition of the powders, Next Generation Impactor (NGI) analysis were used. The encapsulation efficiency and particle size of obtained particles were higher than 98% and sub-100 nm, respectively. Toxicity investigation of EMB-loaded SLNs via MTT assay showed biocompatibility and non-toxicity of the SLNs. Results of flowability and aerodynamic traits assessment of EMB-loaded SLN DPI powder confirmed the suitability of prepared powders. Overall, the attained results showed that EMB-loaded SLN DPI has high potential for direct treatment of tuberculosis.
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Antituberculosos/administração & dosagem , Antituberculosos/química , Etambutol/administração & dosagem , Etambutol/química , Células A549 , Administração por Inalação , Antituberculosos/uso terapêutico , Divisão Celular/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Composição de Medicamentos , Inaladores de Pó Seco , Etambutol/uso terapêutico , Humanos , Lipossomos , Teste de Materiais , Nanopartículas , Tamanho da Partícula , Tuberculose/tratamento farmacológicoRESUMO
Manganese nanoparticles (MnNPs) were created within horse spleen apoferritin (HsAFr) cavity nanotemplates. Transmission electron microscopy revealed the particle size to be 6 nm. Intrinsic fluorescence data showed that the mineralization acted as a quencher of the HsAFr fluorescence, and extrinsic fluorescence data revealed that the hydrophobic binding site at the surface of HsAFr was not changed. Finally, the MnNP-HsAFr was immobilized onto multiwalled carbon nanotubes entrapped into chitosan (CS) matrices by through sequential 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide-N-hydroxysuccinimide and glutaraldehyde coupling. The MnNPs-HsAFr immobilized on CNT-CS/GC electrode was characterized by cyclic voltammetry. This charge transfer coefficient (α) and the exchange current (i0 ) of MnNPs-HsAFr immobilized on modified electrode in 0.1 M phosphate solution (pH 7.5) were found to be 0.57 and 0.48 µA, respectively.
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Apoferritinas/química , Elétrons , Vidro/química , Manganês/química , Nanopartículas Metálicas/química , Eletrodos , HumanosRESUMO
Non-small cell lung cancer (NSCLC) patients with sensitizing mutations in the exons 18-21 of the epithelial growth factor receptor (EGFR) gene show increased kinase activity of EGFR. Hence, tyrosine kinase inhibitors (TKIs) such as erlotinib (ETB) have commonly been used as the second line therapeutic option for the treatment of metastatic NSCLC. While the ETB is available as an oral dosage form, the local delivery of this TKI to the diseased cells of the lung may ameliorate its therapeutic impacts. In the current study, we report on the development of ETB-loaded solid lipid nanoparticle (SLN) based formulation of dry powder inhaler (ETB-SLN DPI). ETB-SLNs were formulated using designated amount of compritol/poloxamer 407. The engineered ETB-SLNs showed sub-100 nm spherical shape with an encapsulation efficiency of 78.21%. MTT assay and DAPI staining revealed that the ETB-SLNs enhanced the cytotoxicity of cargo drug molecules in the human alveolar adenocarcinoma epithelial A549 cells as a model for NSCLC. To attain the ETB-SLN DPI, the ETB-SLNs were efficiently spray dried into microparticles (1-5 µm) along with mannitol. The ETB-SLN DPI powder displayed suitable flowability and aerodynamic traits. The Carr's Index, Hausner ratio and Next Generation Impactor (NGI) analyses confirmed deep inhalation pattern of the formulation. Based on these findings, we propose the ETB-SLN DPI as a promising treatment modality for the NSCLC patients.
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Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Sistemas de Liberação de Medicamentos/métodos , Inaladores de Pó Seco/métodos , Cloridrato de Erlotinib/administração & dosagem , Cloridrato de Erlotinib/farmacologia , Lipídeos/química , Neoplasias Pulmonares/tratamento farmacológico , Nanopartículas/química , Administração por Inalação , Linhagem Celular Tumoral , Química Farmacêutica , Inaladores de Pó Seco/instrumentação , Cloridrato de Erlotinib/química , HumanosRESUMO
Alendronate sodium is a bisphosphonate drug used for the treatment of osteoporosis and acts as a specific inhibitor of osteoclast-mediated bone resorption. Inhalable solid lipid nanoparticles (SLNs) of the alendronate were successfully designed and developed by spray-dried and co-spray dried inhalable mannitol from aqueous solution. Emulsification technique using a simple homogenization method was used for preparation of SLNs. In vitro deposition of the aerosolized drug was studied using a Next Generation Impactor at 60 L/min following the methodology described in the European and United States Pharmacopeias. The Carr's Index, Hausner ratio and angle of repose were calculated as suitable criteria for estimation of the flow behavior of solids. Scanning electron microscopy showed spherical particle morphology of the respirable particles. The proposed spray-dried nanoparticulate-on-microparticles dry powders displayed good aerosol dispersion performance as dry powder inhalers with high values in emitted dose, fine particle fraction and mass median aerodynamic diameter. These results indicate that this novel inhalable spray-dried nanoparticulate-on-microparticles aerosol platform has great potential in systemic delivery of the drug.
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Alendronato/administração & dosagem , Conservadores da Densidade Óssea/administração & dosagem , Sistemas de Liberação de Medicamentos , Nanopartículas , Administração por Inalação , Aerossóis , Química Farmacêutica/métodos , Composição de Medicamentos/métodos , Inaladores de Pó Seco , Lipídeos/química , Manitol/química , Microscopia Eletrônica de VarreduraRESUMO
Synthetic phenolic food additives, such as propyl 3,4,5-trihydroxybenzoate (propyl galate; PG), have been used as an antioxidant in the food industry to prevent oils from spoiling. Their toxicity is one of the challengeable issues resulting from the widespread usage of them in food-related industrials. In this study, we investigated the anticell proliferation effects of PG on A549 lung cancer cells. The result showed that PG dose and time dependently decreased the growth of A549 cells with an half-maximal inhibitory concentration of approximately 1 × 10(-3) and 5 × 10(-4)M of PG at 48 and 72 hours, respectively. In addition, DNA strand breaks have been observed through the comet assay technique. Also, morphology of 4',6-diamidino-2-phenylindole (DAPI)-stained cells showed an obvious fragmentation in the chromatin and DNA rings within the nucleus of PG-treated cells, and, finally, flow cytometry analyses of the cells confirmed DAPI staining assay and determined early and late apoptosis in treated cells.
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Antioxidantes/toxicidade , Apoptose/efeitos dos fármacos , Aditivos Alimentares/toxicidade , Galato de Propila/toxicidade , Antioxidantes/administração & dosagem , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Ensaio Cometa , Dano ao DNA/efeitos dos fármacos , Relação Dose-Resposta a Droga , Citometria de Fluxo , Aditivos Alimentares/administração & dosagem , Humanos , Concentração Inibidora 50 , Neoplasias Pulmonares/metabolismo , Galato de Propila/administração & dosagem , Fatores de TempoRESUMO
Sodium acid pyrophosphate (SAPP) food additive is widely used as a preservative, bulking agent, chelating agent, emulsifier and pH regulator. It is also used as an improver of color and water retention capacity in the processing of various types of seafood, canned food, cooked meat and flour products. For the first time, we evaluated the SAPP interaction with bovine serum albumin (BSA) using spectroscopic methods including UV-Vis absorption, fluorescence spectroscopy, and surface plasmon resonance, and docking analysis to understand the mechanisms of complex formation and binding. The fluorescence intensity of BSA reduces when titrated with various concentrations of SAPP by forming a complex with BSA via a static quenching mechanism. The binding constant between BSA and SAPP decreased from 123,300 to 15,800 (M-1) with rising temperature, which indicates a decrement in complex formation owing to the interaction of SAPP with BSA. A negative ΔG° value means that SAPP binds spontaneously to BSA at all temperatures, and both ΔH° and ΔS° negative values indicate that hydrogen bonds (H-bonding) and van der Waals forces are the primary forces involved in the binding processes. The UV-Vis spectrum of BSA reduced upon increasing SAPP concentrations due to forming a new ground state complex between SAPP and BSA. Molecular docking study shows that residues Arg256, Ser259, Ser286, Ile 289 and Ala 290 play an important role in SAPP binding process to site I (subdomain IIA) of BSA through H-bonding and van der Waals forces, which is supported by the thermodynamic study.Communicated by Ramaswamy H. Sarma.
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Difosfatos , Soroalbumina Bovina , Simulação de Acoplamento Molecular , Sítios de Ligação , Ligação Proteica , Soroalbumina Bovina/química , Espectrometria de Fluorescência , Termodinâmica , Sódio , Espectrofotometria UltravioletaRESUMO
The progressive use of food additives in "ultra-processed" food has increased attention to them. Propyl gallate (PG) is an essential synthetic preservative that commonly used in food, cosmetics, and pharmacies as an antioxidant. This study aimed to outline the existing evidence on the toxicological studies of PG including its physicochemical properties, metabolism, and pharmacokinetics effects. The methods include updated searches for the relevant databases. The EFSA has evaluated the use of PG in food industry. It establishes an acceptable daily intake (ADI) of 0.5 mg/kg bw per day. Based on exposure assessment, it can be concluded that at the current level of use, PG is not of safety concern.
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Aditivos Alimentares , Galato de Propila , Galato de Propila/toxicidade , Aditivos Alimentares/toxicidade , Antioxidantes , Nível de Efeito Adverso não Observado , Conservantes FarmacêuticosRESUMO
Introduction: Nisin is a bacteriocin produced by Streptococcus and Lactococcus species and has antimicrobial activity against other bacteria. Nisin omits the need to use chemical preservatives in food due to its biological preserving properties. Methods: In the present in vitro study, we investigated nisin interaction with bovine serum albumin (BSA) using fluorescence spectroscopy and surface plasmon resonance (SPR) analysis to obtain information about the mechanisms of BSA complex formation with nisin. Results: The BSA fluorescence intensity values gradually diminished with rising nisin concentration. The BSA fluorescence quenching analysis indicated that a combined quenching mechanism plays the main role. Finally, the Kb values were reduced with increasing temperature, which is demonstrative of nisin-BSA complex stability decrease at high temperatures. The negative values of ΔH° and ΔS° showed that hydrogen bonds and van der Waals forces are the foremost binding force between BSA and nisin. Meanwhile, the negative values of ΔG° demonstrated the exothermic and random nature of the reaction process. The results of the SPR verified the gained results through the fluorescence spectroscopy investigation, which denoted that the BSA affinity to nisin diminished upon increasing temperature. Conclusion: Overall, fluorescence spectroscopy and SPR results showed that the BSA interaction with nisin decreased with rising temperatures.
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Owing to the high toxicity and large-scale use of pesticides, it is imperative to develop selective, sensitive, portable, and convenient sensors for rapid monitoring of pesticide. Therefore, the electrochemical detection platform offers a promising analytical approach since it is easy to operate, economical, efficient, and user-friendly. Meanwhile, with advances in functional nanomaterials and aptamer selection technologies, numerous sensitivity-enhancement techniques alongside a widespread range of smart nanomaterials have been merged to construct novel aptamer probes to use in the biosensing field. Hence, this study intends to highlight recent development and promising applications on the functional nanomaterials with aptamers for pesticides detection based on electrochemical strategies. We also reviewed the current novel aptamer-functionalized microdevices for the portability of pesticides sensors. Furthermore, the major challenges and future prospects in this field are also discussed to provide ideas for further research.
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Aptâmeros de Nucleotídeos , Técnicas Biossensoriais , Nanoestruturas , Praguicidas , Técnicas Biossensoriais/métodos , Técnicas EletroquímicasRESUMO
Purpose: Cancer is an example of the most important growing diseases in human society and scientists are trying to treat it without considerable side effects on patient's health. Solid lipids are colloidal nanoparticles that were used in drug delivery due to their several advantages. Methods: In this work, surface modified targeted solid lipid nanoparticles (SLNs) were fabricated by nano-homogenizer using tripalmitin glyceride and stearic acid as lipid constituents. The size of nanoparticles and morphological evaluations were surveyed using particle size analyzer, scanning electron microscopy; Fourier transforms infrared spectroscopy (FT-IR) and differential scanning calorimetry (DSC). Results: The particle size of 148.5 and appropriate polydispersity index were achieved for lipid nanoparticles with an entrapment efficiency of 86.1%. The FT-IR analysis confirmed the coupling of lysine to the free functional group of SLNs. DSC proved the conjugation of amino acid to the surface of carriers. The in vitro epirubicin (EPI) release test exhibited the further controlled release phenomenon for the lysine conjugated nanoparticles. The cytotoxicity assay showed lower IC50 of lysine conjugated SLNs of EPI on the investigated cell line. Conclusion: These studies showed that the fabricated targeted carrier has a very remarkable anticancer effect on breast cancer cell lines in comparison with pure drug.
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The transcription factor high mobility group protein A2 (HMGA2) plays an important role in the pathogenesis of some cancers including breast cancer. Polyamidoamine dendrimer generation 4 is a kind of highly branched polymeric nanoparticle with surface charge and highest density peripheral groups that allow ligands or therapeutic agents to attach it, thereby facilitating target delivery. Here, methotrexate (MTX)- modified polyamidoamine dendrimer generation 4 (G4) (G4/MTX) was generated to deliver specific small interface RNA (siRNA) for suppressing HMGA2 expression and the consequent effects on folate receptor (FR) expressing human breast cancer cell lines (MCF-7, MDA-MB-231). We observed that HMGA2 siRNA was electrostatically adsorbed on the surface of the G4/MTX nanocarrier for constructing a G4/MTX-siRNA nano-complex which was verified by changing the final particle size and zeta potential. The release of MTX and siRNA from synthesized nanocomplexes was found in a time- and pH-dependent manner. We know that MTX targets FR. Interestingly, G4/MTX-siRNA demonstrates significant cellular internalization and gene silencing efficacy when compared to the control. Besides, the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay demonstrated selective cell cytotoxicity depending on the folate receptor expressing in a dose-dependent manner. The gene silencing and protein downregulation of HMGA2 by G4/MTX-siRNA was observed and could significantly induce cell apoptosis in MCF-7 and MDA-MB-231 cancer cells compared to the control group. Based on the findings, we suggest that the newly developed G4/MTX-siRNA nano-complex may be a promising strategy to increase apoptosis induction through HMGA2 suppression as a therapeutic target in human breast cancer.
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Neoplasias da Mama/genética , Proteína HMGA2/genética , Apoptose/efeitos dos fármacos , Neoplasias da Mama/terapia , Linhagem Celular Tumoral , Terapia Baseada em Transplante de Células e Tecidos/métodos , Dendrímeros/metabolismo , Dendrímeros/farmacologia , Dendrímeros/uso terapêutico , Feminino , Expressão Gênica/genética , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Regulação Neoplásica da Expressão Gênica/genética , Inativação Gênica , Proteína HMGA2/metabolismo , Humanos , Células MCF-7 , Metotrexato/farmacologia , Nylons/farmacologia , RNA Interferente Pequeno/genéticaRESUMO
Human exposure to silica nanoparticles (SNPs) and formaldehyde (FA) is increasing and this has raised some concerns over their possible toxic effects on the exposed working populations. Notwithstanding several studies in this area, the combined toxicological effects of these contaminants have not been yet studied. Therefore, this in vitro study was designed to evaluate the SNPs and FA combined toxicity on human lung epithelial cells (A549 cells). The cells were exposed to SNPs and FA separately and in combined form and the single and combined toxicity of SNPs and FA were evaluated by focusing on cellular viability, DNA damage, and apoptosis via MTT, DAPI staining, DNA ladder, and Annexin V-FITC apoptosis assays. The results showed a significant increase in cytotoxicity, DNA damage, and chromatin fragmentation and late apoptotic\necrotic rates in combined treated cells compared with SNPs and FA-treated cells (P value < 0.05). Two-factorial analysis showed an additive toxic interaction between SNPs and FA. Eventually, this can be deduced that workers exposed simultaneously to SNPs and FA may be at high risk compared with exposure to each other.
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Nanopartículas , Dióxido de Silício , Apoptose , Linhagem Celular Tumoral , Dano ao DNA , Células Epiteliais , Formaldeído , HumanosRESUMO
Co-delivery of therapeutic agents and small interfering RNA (siRNA) can be achieved by a suitable nanovehicle. In this work, the solubility and bioavailability of curcumin (Cur) were enhanced by entrapment in a polyamidoamine (PAMAM) dendrimer, and a polyplex was formed by grafting Bcl-2 siRNA onto the surface amine groups to produce PAMAM-Cur/Bcl-2 siRNA nanoparticles (NPs). The synthesized polyplex NPs had a particle size of â¼180â¯nm, and high Cur loading content of â¼82 wt%. Moreover, the PAMAM-Cur/Bcl-2 siRNA NPs showed more effective cellular uptake, and higher inhibition of tumor cell proliferation compared to PAMAM-Cur nanoformulation and free Cur, due to the combined effect of co-delivery of Cur and Bcl-2 siRNA. The newly described PAMAM-Cur/Bcl-2 siRNA polyplex NPs could be a promising co-delivery nanovehicle.
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Antineoplásicos/farmacologia , Curcumina/farmacologia , Dendrímeros/farmacologia , Sistemas de Liberação de Medicamentos , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , RNA Interferente Pequeno/farmacologia , Antineoplásicos/química , Proliferação de Células/efeitos dos fármacos , Curcumina/química , Dendrímeros/química , Ensaios de Seleção de Medicamentos Antitumorais , Células HeLa , Humanos , Tamanho da Partícula , RNA Interferente Pequeno/química , Propriedades de SuperfícieRESUMO
Berberine (BBR) is an isoquinoline alkaloid belonging to the structural class of protoberberines. BBR has been used in traditional medicine to treat diseases, such as type 2 diabetes and hypercholesterolemia. BBR inhibits cancer cell growth and induces apoptosis. However, BBR has significant drawbacks as a chemotherapeutic agent, including poor solubility, and induction of drug resistance, limiting its application in chemotherapy. Hence, combination therapy could not only deal with the problems related to single-agent chemotherapy but could also improve the therapeutic index of anticancer drugs. Co-administration of drugs may show pharmaceutical incompatibility due to conflicting physicochemical features. BBR can be used in nanoparticle-based single drug delivery, and in co-delivery systems designed to accommodate drugs and deliver them simultaneously into cancer cells. In this review, we will summarize the use of BBR, including BBR as a single chemotherapeutic agent and the combination of BBR with traditional anti-cancer drugs or herbal medicines in nanoparticle-based delivery systems.
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Antineoplásicos , Berberina , Diabetes Mellitus Tipo 2 , Antineoplásicos/farmacologia , Apoptose , Berberina/farmacologia , Medicina Herbária , HumanosRESUMO
Epidermal growth factor receptor (EGFR) plays an important role in cell proliferation at non-small cell lung cancer (NSCLC). Therefore, targeted therapy of cancer via this kind of receptor is highly interested. Small molecule drugs such as erlotinib and gefitinib inhibit EGFR tyrosine kinase and thus suppress cell proliferation. At this paper, erlotinib interaction with EGFR on the cell surface was studied via surface plasmon resonance (SPR) and molecular docking methods. Kinetic parameters indicated that erlotinib affinity toward EGFR was increased through increment of temperature. The thermodynamic analysis showed that van der Waals and hydrogen binding forces play a major role in the interaction of erlotinib with EGFR. Docking results showed that Domain II in EGFR has role in the interaction with erlotinib. Besides, the binding energy for this interaction was -10.7 kcal/mol, which is suitable for binding of erlotinib to Domain II in EGFR.
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Antineoplásicos/química , Receptores ErbB/química , Cloridrato de Erlotinib/química , Simulação de Acoplamento Molecular , Simulação de Dinâmica Molecular , Inibidores de Proteínas Quinases/química , Ressonância de Plasmônio de Superfície , Antineoplásicos/farmacologia , Sítios de Ligação , Técnicas de Cultura de Células , Receptores ErbB/antagonistas & inibidores , Cloridrato de Erlotinib/farmacologia , Humanos , Cinética , Ligação Proteica , Inibidores de Proteínas Quinases/farmacologia , Relação Quantitativa Estrutura-Atividade , TermodinâmicaRESUMO
2-tert-Butyl-4-hydroquinone (TBHQ) is used for inhibition of oxidative rancidity in the food industry. However, this antioxidant can stimulate cytotoxicity in human umbilical vein endothelial cells (HUVECs). Thus, potential protective effects of thymoquinone (TQ) against TBHQ-induced cytotoxicity were investigated. Cytotoxicity was evaluated via MTT, flow cytometry, DAPI staining and DNA fragmentation methods. The obtained results revealed that treatment of HUVECs with TQ enhanced the cell viability rate and it had potential to reduce the cytotoxicity effect of TBHQ in cells. Also, in a combined regime of TQ and TBHQ, apoptosis was reduced compared to the cells treated with TBHQ (p < 0.05). Similarly, TQ had a protective effect on DNA and chromatin fragmentation of the cells treated with TBHQ. Finally, it can be concluded that TQ could be used as a protective agent against cytotoxicity induced by TBHQ in HUVECs.
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Exposure to food toxins generate multiple adverse health effects. Heavy metals, antibiotics residue, mycotoxins, pesticides and some food additives are examples of the most important food toxins. The common mechanism of toxicity and carcinogenicity effects of food toxins is the generation of oxidative stress that leads to DNA damages. Moreover, based on epidemiologic evidence unhealthy eating habits and food toxicities are associated with cancers occurrence. Therefore, application of bioactive food additives as harmless or safe components in food industry is expensive. Nigella sativa L. is a broadly used herb-drug for various diseases all over the world and has been used as preservative and food additive. Based on various studies N. sativa has shown various pharmacological activities including therapeutic efficacy against different human diseases and antioxidant anti-inflammatory effects against environmental toxins. N. sativa decreases the adverse health effects induced by mentioned food toxins via modulating the action of antioxidant enzymes such as glutathione peroxidase (GPx), glutathione-S-transferase catalase and act as reactive oxygen species (ROS) scavengers in different organs. Besides, N. sativa and thymoquinone (TQ) have protective effects on food products through removal and inhibition of various toxic compounds. Therefore, in the present review we will describe all protective effects of N. sativa and its main constituents, TQ, against food induced toxicities.
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Synthetic food preservatives like sodium acetate (SA), sodium benzoate (SB), potassium sorbate (PS) and Butyl paraben (BP) have been widely used in food and pharmacy industries. One of the toxicological aspects of food additives is evaluation of their interaction with serum proteins such as albumin. These additives interaction with human serum albumin (HSA) can exert considerable effect on the absorption, distribution, metabolism and toxicity of chemical compounds. It should be noticed that the aforementioned food preservatives intake increase mainly in the presence of glucose may lead to complex formation of SA, SB, PS and BP with HSA and accelerate the development of variety disease such as cancer, diabetes, multiple sclerosis, brain damage, nausea and cardiac disease. Therefore, to understand the mechanisms of aforementioned food additives interaction and conformational changes of proteins, we aim to review various studies that investigated albumin interaction with these additives using several procedures.
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Conservantes de Alimentos/química , Albumina Sérica/química , Citocinas/genética , Citocinas/metabolismo , Dano ao DNA/efeitos dos fármacos , Conservantes de Alimentos/toxicidade , Humanos , Estresse Oxidativo/efeitos dos fármacos , Parabenos/química , Parabenos/toxicidade , Acetato de Sódio/química , Acetato de Sódio/toxicidade , Benzoato de Sódio/química , Benzoato de Sódio/toxicidade , Ácido Sórbico/química , Ácido Sórbico/toxicidadeRESUMO
Due to the nearby relationship between human health, socioeconomic development and environmental pollution, the detection and identification of environmental pollutants need more attention. Therefore, the development of suitable analytical devices that are sensitive, specific, precise, quick, and easy-to-use are required to resolve the increased request for legislative action on environmental pollution control and early detection of rising pollutants. Currently, the development of biosensing instruments attracted important attention because of their high selectivity, sensitivity, simplicity, reliability, low-cost and real-time response. Surface plasmon resonance (SPR) sensor as an example of portable, rapid, and smart biosensing devices widely used for qualitative and quantitative detection of multiplexed pollutant in real-time. Thus, SPR principles, assay formats, surface modification methods and signal enhancement are summarized in this review. Moreover, applications of SPR in the detection of pesticide, polycyclic aromatic hydrocarbons (PAHs), heavy metals and polychlorinated biphenyls (PCBs) over the past decade is discussed.