Pub Date : 2021-09-27DOI: 10.1142/s179398442141004x
Q. Guan, Min Wang
Cancer threatens the life and well-being of human beings. Millions of newly diagnosed cancer cases and a large number of deaths caused by cancer are reported each year in the world. Early detection and effective treatment are key to reduce cancer mortality, which can be potentially realized by using “theranostics”. Theranostics are a group of hybrid nanoparticles that perform in cancer patients to provide both diagnostic and therapeutic functions through a single nano-sized structure. In particular, core-shell structured theranostics have shown unique physicochemical properties, allowing them to facilitate molecular/cell targeting, bio-imaging, and drug delivery functions. This review, therefore, aims to present and discuss the recent development of research on core-shell structured theranostics. Specifically, it focuses on core-shell structured theranostics made of metals, silica and polymers. Different aspects, such as synthesis and structure, of core-shell structured theranostics are discussed in this review. This review helps readers to have a good understanding of the design and fabrication of core-shell structured theranostics.
{"title":"Core-Shell Structured Theranotics","authors":"Q. Guan, Min Wang","doi":"10.1142/s179398442141004x","DOIUrl":"https://doi.org/10.1142/s179398442141004x","url":null,"abstract":"Cancer threatens the life and well-being of human beings. Millions of newly diagnosed cancer cases and a large number of deaths caused by cancer are reported each year in the world. Early detection and effective treatment are key to reduce cancer mortality, which can be potentially realized by using “theranostics”. Theranostics are a group of hybrid nanoparticles that perform in cancer patients to provide both diagnostic and therapeutic functions through a single nano-sized structure. In particular, core-shell structured theranostics have shown unique physicochemical properties, allowing them to facilitate molecular/cell targeting, bio-imaging, and drug delivery functions. This review, therefore, aims to present and discuss the recent development of research on core-shell structured theranostics. Specifically, it focuses on core-shell structured theranostics made of metals, silica and polymers. Different aspects, such as synthesis and structure, of core-shell structured theranostics are discussed in this review. This review helps readers to have a good understanding of the design and fabrication of core-shell structured theranostics.","PeriodicalId":44929,"journal":{"name":"Nano Life","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46169902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-22DOI: 10.1142/s1793984421410038
Qilong Zhao, Min Wang
Biomanufacturing of cell-laden scaffolds with biomimetic cell-scaffold organizations resembling the structures and anatomy of human body tissues and organs holds great promise in tissue engineering and regenerative medicine. In human body tissues and organs, specific types of cells are supported by nanofibrous extracellular matrix (ECM) in well-defined three-dimensional (3D) manners. Electrospinning is a facile and effective technique for producing nanofibrous scaffolds, which exhibit high similarities in the structure compared to ECM that offers structural and mechanical supports to cells in the human body. The incorporation within the electrospun nanofibrous scaffolds has therefore been considered as a promising approach for biomanufacturing of cell-laden scaffolds with tissue-mimicking structures. However, limited by low controllability of conventional cell seeding strategies and small sizes of interconnected pores of normal electrospun scaffolds, it is highly difficult to incorporate living cells within electrospun scaffolds on demand and results in cell-laden scaffolds with desirable 3D cell-scaffold organization. With recent advances in electrospinning and electrospraying with cells, it is visible to directly incorporate living cells within scaffolds via cell microencapsulation approaches and therefore offer promising alternatives for biomanufacturing of cell-laden scaffolds with tissue-mimicking structures. In this review, we will summarize the applications and challenges of cell seeding strategies and cell microencapsulation technologies for incorporating cells within electrospun scaffolds. Some techniques with high potentials to be integrated with electrospinning for forming the cell-laden scaffolds in continuous and noncontact manners, including aerodynamic-assisted cell microencapsulation, hydrodynamic-assisted cell microencapsulation and electrohydrodynamic-assisted cell microencapsulation (i.e., cell electrospinning and cell electrospraying), are highlighted. In particular, the cell microencapsulation and the subsequent formation of cell-laden scaffolds directly by electrospinning and electrospraying with living cells are overviewed in a detailed manner. Finally, the perspective and challenges of electrospinning and electrospraying with cells for biomanufacturing of cell-laden scaffolds with tissue-mimicking structures are discussed.
{"title":"Electrospinning and Electrospraying with Cells for Applications in Biomanufacturing","authors":"Qilong Zhao, Min Wang","doi":"10.1142/s1793984421410038","DOIUrl":"https://doi.org/10.1142/s1793984421410038","url":null,"abstract":"Biomanufacturing of cell-laden scaffolds with biomimetic cell-scaffold organizations resembling the structures and anatomy of human body tissues and organs holds great promise in tissue engineering and regenerative medicine. In human body tissues and organs, specific types of cells are supported by nanofibrous extracellular matrix (ECM) in well-defined three-dimensional (3D) manners. Electrospinning is a facile and effective technique for producing nanofibrous scaffolds, which exhibit high similarities in the structure compared to ECM that offers structural and mechanical supports to cells in the human body. The incorporation within the electrospun nanofibrous scaffolds has therefore been considered as a promising approach for biomanufacturing of cell-laden scaffolds with tissue-mimicking structures. However, limited by low controllability of conventional cell seeding strategies and small sizes of interconnected pores of normal electrospun scaffolds, it is highly difficult to incorporate living cells within electrospun scaffolds on demand and results in cell-laden scaffolds with desirable 3D cell-scaffold organization. With recent advances in electrospinning and electrospraying with cells, it is visible to directly incorporate living cells within scaffolds via cell microencapsulation approaches and therefore offer promising alternatives for biomanufacturing of cell-laden scaffolds with tissue-mimicking structures. In this review, we will summarize the applications and challenges of cell seeding strategies and cell microencapsulation technologies for incorporating cells within electrospun scaffolds. Some techniques with high potentials to be integrated with electrospinning for forming the cell-laden scaffolds in continuous and noncontact manners, including aerodynamic-assisted cell microencapsulation, hydrodynamic-assisted cell microencapsulation and electrohydrodynamic-assisted cell microencapsulation (i.e., cell electrospinning and cell electrospraying), are highlighted. In particular, the cell microencapsulation and the subsequent formation of cell-laden scaffolds directly by electrospinning and electrospraying with living cells are overviewed in a detailed manner. Finally, the perspective and challenges of electrospinning and electrospraying with cells for biomanufacturing of cell-laden scaffolds with tissue-mimicking structures are discussed.","PeriodicalId":44929,"journal":{"name":"Nano Life","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46469741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-10DOI: 10.1142/s1793984421410075
J. Song, Xinxin Ye, Wen Chen, Li Wang, Bing Heng Lu
The aim of skeletal muscle tissue engineering is to replace or repair skeletal muscle functions that have been injured or lost part of their functions. Skeletal muscle tissue engineering is an important strategy for muscle injury repair. The previous review on skeletal muscle tissue engineering was limited to the discussion of seed cells, biological materials and growth factors. In recent years, research results in this field have continued to emerge. This paper first briefly introduces the anatomy of skeletal muscle, and then combines the latest domestic and foreign study, from the basic problems of tissue engineering skeletal muscle construction to its vascularization, neuralization, etc., to review the current research status of skeletal muscle tissue engineering using three-dimensional (3D) printing, and look forward to its research prospects.
{"title":"3D Printing of Skeleton Muscle Tissue Engineering Scaffolds","authors":"J. Song, Xinxin Ye, Wen Chen, Li Wang, Bing Heng Lu","doi":"10.1142/s1793984421410075","DOIUrl":"https://doi.org/10.1142/s1793984421410075","url":null,"abstract":"The aim of skeletal muscle tissue engineering is to replace or repair skeletal muscle functions that have been injured or lost part of their functions. Skeletal muscle tissue engineering is an important strategy for muscle injury repair. The previous review on skeletal muscle tissue engineering was limited to the discussion of seed cells, biological materials and growth factors. In recent years, research results in this field have continued to emerge. This paper first briefly introduces the anatomy of skeletal muscle, and then combines the latest domestic and foreign study, from the basic problems of tissue engineering skeletal muscle construction to its vascularization, neuralization, etc., to review the current research status of skeletal muscle tissue engineering using three-dimensional (3D) printing, and look forward to its research prospects.","PeriodicalId":44929,"journal":{"name":"Nano Life","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45848937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-01DOI: 10.1142/s1793984421400080
Lveli Wang, Chuan Xiao, Yaping Liang, Zhiying Weng, Weimin Yang
Chronic obstructive pulmonary disease (COPD) is the third-most deadly disease in the world and will be a major healthcare problem for decades to come. Its etiology is mainly related to the exposure to cigarette smoke and poisonous gases, and the infections of viruses including COVID-19 induce acute exacerbation of COPD, which may cause death in patients. Few advances have been made in COPD pathological mechanism, and the current clinical treatment strategies focus on both bronchodilator and anti-inflammatory interventions; but with limited clinical therapeutic agents, COPD therapies still lack more drugs especially those that antagonize COPD-specific inflammatory responses. We review the COPD clinically applied drugs, and the progress of research on new drugs and related novel targets, including [Formula: see text] agonists and anti-muscarinic drugs for airway diastole, glucocorticoids and phosphodiesterase-4 inhibitors for anti-inflammatory, protease inhibitors, emerging antioxidants, adhesion factor inhibitors, growth factor antagonists, adenylate cyclase agonists, chemokine antagonists, etc. We thus provide insights on the COPD new drugs research and development.
{"title":"Research Advances in COPD Drugs and Novel Targets","authors":"Lveli Wang, Chuan Xiao, Yaping Liang, Zhiying Weng, Weimin Yang","doi":"10.1142/s1793984421400080","DOIUrl":"https://doi.org/10.1142/s1793984421400080","url":null,"abstract":"Chronic obstructive pulmonary disease (COPD) is the third-most deadly disease in the world and will be a major healthcare problem for decades to come. Its etiology is mainly related to the exposure to cigarette smoke and poisonous gases, and the infections of viruses including COVID-19 induce acute exacerbation of COPD, which may cause death in patients. Few advances have been made in COPD pathological mechanism, and the current clinical treatment strategies focus on both bronchodilator and anti-inflammatory interventions; but with limited clinical therapeutic agents, COPD therapies still lack more drugs especially those that antagonize COPD-specific inflammatory responses. We review the COPD clinically applied drugs, and the progress of research on new drugs and related novel targets, including [Formula: see text] agonists and anti-muscarinic drugs for airway diastole, glucocorticoids and phosphodiesterase-4 inhibitors for anti-inflammatory, protease inhibitors, emerging antioxidants, adhesion factor inhibitors, growth factor antagonists, adenylate cyclase agonists, chemokine antagonists, etc. We thus provide insights on the COPD new drugs research and development.","PeriodicalId":44929,"journal":{"name":"Nano Life","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47748848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cypher, which is named ZASP/LDB3, one of the members of PDZ-LIM family, was well known to express in cardiac and skeletal muscles which played a functional role in muscles. It has shown that global deletion of Cypher in mice leads to lethality due to dysfunction of the skeletal muscles. Recently, the MGD database has been shown that conditional deletion of Cypher or gene mutations leads to human disease, the etiology and mechanism of which remained unknown. Therefore, it might be very important that we systemically investigated the expression of Cypher in organs or tissues from developmental stages through adulthood at first. We explored the expression pattern of Cypher by [Formula: see text]-gal staining of Cypher LacZ knockin mice combing with chemical staining, immunostaining and in situ hybridization, suggesting that Cypher might play a functional role in those organs. Further investigation will be done by cooperation with other groups by using the conditional deletion of Cypher or the point mutation of genes in the organs, which studied Cypher expression according to the MGD database.
{"title":"The Expression Pattern of Cypher in the Multiple Organs of Mice","authors":"Chushan Fang, Siyi Xie, Yujie Gao, Yunfu Sun, Xingqun Liang","doi":"10.1142/s1793984421400079","DOIUrl":"https://doi.org/10.1142/s1793984421400079","url":null,"abstract":"Cypher, which is named ZASP/LDB3, one of the members of PDZ-LIM family, was well known to express in cardiac and skeletal muscles which played a functional role in muscles. It has shown that global deletion of Cypher in mice leads to lethality due to dysfunction of the skeletal muscles. Recently, the MGD database has been shown that conditional deletion of Cypher or gene mutations leads to human disease, the etiology and mechanism of which remained unknown. Therefore, it might be very important that we systemically investigated the expression of Cypher in organs or tissues from developmental stages through adulthood at first. We explored the expression pattern of Cypher by [Formula: see text]-gal staining of Cypher LacZ knockin mice combing with chemical staining, immunostaining and in situ hybridization, suggesting that Cypher might play a functional role in those organs. Further investigation will be done by cooperation with other groups by using the conditional deletion of Cypher or the point mutation of genes in the organs, which studied Cypher expression according to the MGD database.","PeriodicalId":44929,"journal":{"name":"Nano Life","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46734652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-08-20DOI: 10.1142/s1793984421500045
Fangyong Lou, Jianguo Lei, Jingquan Lin
A simple design of a triple-band terahertz metamaterial absorber is presented in this paper. The proposed absorber only uses a cross metal structure to achieve nearly perfect absorption of the three peaks, and the absorptivities are all over 97%. The structure shows excellent triple-band absorption by combining fundamental mode resonance with high-order resonance (third-order resonance) in a single metal structure, the absorption mechanism is different from most previous multi-band absorbers. By adjusting the structural parameters of the cross metal, a frequency tunable triple-band absorber is obtained. The metal structure is not only simple in graphics but also insensitive to the polarization waves, which is beneficial to manufacturing and practical application. Finally, the sensing performance of the absorber is analyzed in detail by changing the surrounding environmental parameters, which shows that the absorber has great application value in detection and sensing.
{"title":"A Simple Triple-Band Terahertz Metamaterial Absorber Based on Multi-Mode Resonance for Sensing Applications","authors":"Fangyong Lou, Jianguo Lei, Jingquan Lin","doi":"10.1142/s1793984421500045","DOIUrl":"https://doi.org/10.1142/s1793984421500045","url":null,"abstract":"A simple design of a triple-band terahertz metamaterial absorber is presented in this paper. The proposed absorber only uses a cross metal structure to achieve nearly perfect absorption of the three peaks, and the absorptivities are all over 97%. The structure shows excellent triple-band absorption by combining fundamental mode resonance with high-order resonance (third-order resonance) in a single metal structure, the absorption mechanism is different from most previous multi-band absorbers. By adjusting the structural parameters of the cross metal, a frequency tunable triple-band absorber is obtained. The metal structure is not only simple in graphics but also insensitive to the polarization waves, which is beneficial to manufacturing and practical application. Finally, the sensing performance of the absorber is analyzed in detail by changing the surrounding environmental parameters, which shows that the absorber has great application value in detection and sensing.","PeriodicalId":44929,"journal":{"name":"Nano Life","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42333944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Layered double hydroxide nanomaterials (LDH NMs) have been dragging the researchers’ attention toward biomedical applications owing to their physiochemical properties, biocompatibility, environmental sensitivity and good cellular uptake mechanisms. Various synthetic methods have been presented in brief. This paper draws attention toward the modification and functionalization of LDH nanostructures for biomedical applications in targeted and controlled drug release, anticancer, bioimaging, bone therapy and regeneration, gene delivery, ophthalmic and antitumor activities. Further, it explains the properties of conjugated LDH NMs which put forward their possibilities to be used in synthesizing the most demanding vaccine for COVID-19 pandemic. Current scenario, challenges and future perspective of LDH NMs have also been discussed.
{"title":"Layered Double Hydroxide Nanomaterials: Biomedical Applications, Current Status and Challenges","authors":"Ritika Sharma, Bhawna, Sanjeev Kumar, Poonam Singh, Akanksha Gupta, Vinod Kumar","doi":"10.1142/s1793984421300089","DOIUrl":"https://doi.org/10.1142/s1793984421300089","url":null,"abstract":"Layered double hydroxide nanomaterials (LDH NMs) have been dragging the researchers’ attention toward biomedical applications owing to their physiochemical properties, biocompatibility, environmental sensitivity and good cellular uptake mechanisms. Various synthetic methods have been presented in brief. This paper draws attention toward the modification and functionalization of LDH nanostructures for biomedical applications in targeted and controlled drug release, anticancer, bioimaging, bone therapy and regeneration, gene delivery, ophthalmic and antitumor activities. Further, it explains the properties of conjugated LDH NMs which put forward their possibilities to be used in synthesizing the most demanding vaccine for COVID-19 pandemic. Current scenario, challenges and future perspective of LDH NMs have also been discussed.","PeriodicalId":44929,"journal":{"name":"Nano Life","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49629726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-08-14DOI: 10.1142/s1793984421410014
Yu-Dong Zhao, Jiahui Lai, Min Wang
In recent years, 4D printing has gained increasing attention in the tissue engineering field since this advanced manufacturing platform can create stimulus-responsive structures, which can change their shapes, functions, and/or properties when appropriate external stimulus/stimuli is/are applied. A number of hydrogels with swellable/shrinkable abilities have been explored for 4D printing to fabricate different shape-morphing structures for tissue engineering. Among them, gelatin methacryloyl (GelMA) has been 4D printed, which can self-fold into microtubular structures. Currently, the self-folding ability of 4D printed GelMA hydrogels is mainly based on the different cross-linking degrees (which control and govern the swelling degrees) across the thickness of hydrogels. However, this strategy alone can only form self-folding GelMA tubes with diameters at the micrometer level and cannot create self-folding GelMA tubes with diameters at the millimeter level, which is mainly due to the insufficient internal force generated in 4D printed GelMA hydrogels when they are exposed to water. To overcome this limitation, this study has investigated a new strategy to fabricate self-folding GelMA tubes with large diameters at the millimeter level for tissue engineering applications. The new strategy introduced a cross-linking degree gradient across the GelMA plane in addition to its thickness by printing a second layer of strips on the first 4D printed GelMA film. In the aqueous environment, under the current fabrication condition, such bilayer GelMA hydrogels could self-fold into tubes of larger diameters up to 6[Formula: see text]mm. The in vitro release behavior of heparin incorporated into the 4D printed GelMA was also studied. It was shown that heparin release could be controlled by the GelMA concentration and heparin content in 4D printed GelMA. The 4D printed GelMA hydrogels with the improved self-folding ability and controlled release of a drug are promising for targeted tissue engineering applications.
{"title":"4D Printing of Self-Folding Hydrogel Tubes for Potential Tissue Engineering Applications","authors":"Yu-Dong Zhao, Jiahui Lai, Min Wang","doi":"10.1142/s1793984421410014","DOIUrl":"https://doi.org/10.1142/s1793984421410014","url":null,"abstract":"In recent years, 4D printing has gained increasing attention in the tissue engineering field since this advanced manufacturing platform can create stimulus-responsive structures, which can change their shapes, functions, and/or properties when appropriate external stimulus/stimuli is/are applied. A number of hydrogels with swellable/shrinkable abilities have been explored for 4D printing to fabricate different shape-morphing structures for tissue engineering. Among them, gelatin methacryloyl (GelMA) has been 4D printed, which can self-fold into microtubular structures. Currently, the self-folding ability of 4D printed GelMA hydrogels is mainly based on the different cross-linking degrees (which control and govern the swelling degrees) across the thickness of hydrogels. However, this strategy alone can only form self-folding GelMA tubes with diameters at the micrometer level and cannot create self-folding GelMA tubes with diameters at the millimeter level, which is mainly due to the insufficient internal force generated in 4D printed GelMA hydrogels when they are exposed to water. To overcome this limitation, this study has investigated a new strategy to fabricate self-folding GelMA tubes with large diameters at the millimeter level for tissue engineering applications. The new strategy introduced a cross-linking degree gradient across the GelMA plane in addition to its thickness by printing a second layer of strips on the first 4D printed GelMA film. In the aqueous environment, under the current fabrication condition, such bilayer GelMA hydrogels could self-fold into tubes of larger diameters up to 6[Formula: see text]mm. The in vitro release behavior of heparin incorporated into the 4D printed GelMA was also studied. It was shown that heparin release could be controlled by the GelMA concentration and heparin content in 4D printed GelMA. The 4D printed GelMA hydrogels with the improved self-folding ability and controlled release of a drug are promising for targeted tissue engineering applications.","PeriodicalId":44929,"journal":{"name":"Nano Life","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43530748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-29DOI: 10.1142/s1793984421300077
D. Das, Anuj Kumar, V. K. Vashistha
During last two decades, the biggest global epidemic had been associated with middle east respiratory syndrome, severe acute respiratory syndrome, and novel coronavirus-19 (COVID-19) with clinical symptoms of bronchitis, pneumonia, and fetal respiratory illness. Infection caused by COVID-19 initially assumed to be milder in nature but consequently spreading across the globe and devastating mortality rate rapidly made it a pandemic. Having enormous challenges, many significant issues are yet to be addressed. Scientific community is engaged in designing and developing effective nano-biosensors for the quick detection of COVID-19, easy diagnosis as well as absolute tracking of infected population in order to prevent pandemic outbreak further. In this paper, key stages like suppressing the immune response of COVID-19 patients, diagnosis of COVID-19, and prevention of COVID-19 using nanomaterials have been discussed. Further, the unresolved challenges and drawbacks toward treatments and vaccine development at the earliest to win over this war have also been critically discussed.
{"title":"Advancement in Nanomaterials for Rapid Sensing, Diagnosis, and Prevention of COVID-19","authors":"D. Das, Anuj Kumar, V. K. Vashistha","doi":"10.1142/s1793984421300077","DOIUrl":"https://doi.org/10.1142/s1793984421300077","url":null,"abstract":"During last two decades, the biggest global epidemic had been associated with middle east respiratory syndrome, severe acute respiratory syndrome, and novel coronavirus-19 (COVID-19) with clinical symptoms of bronchitis, pneumonia, and fetal respiratory illness. Infection caused by COVID-19 initially assumed to be milder in nature but consequently spreading across the globe and devastating mortality rate rapidly made it a pandemic. Having enormous challenges, many significant issues are yet to be addressed. Scientific community is engaged in designing and developing effective nano-biosensors for the quick detection of COVID-19, easy diagnosis as well as absolute tracking of infected population in order to prevent pandemic outbreak further. In this paper, key stages like suppressing the immune response of COVID-19 patients, diagnosis of COVID-19, and prevention of COVID-19 using nanomaterials have been discussed. Further, the unresolved challenges and drawbacks toward treatments and vaccine development at the earliest to win over this war have also been critically discussed.","PeriodicalId":44929,"journal":{"name":"Nano Life","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49556428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-27DOI: 10.1142/s1793984421500033
Yichang Yu, Ziyuyang Zheng, Wei Liao, Y. Yao, F. Peng, Tingting Chen, J. Wu, Li Feng
A novel spherical N-CQDs/BiOI photocatalyst was successfully synthesized through a facile solvothermal method. The optimization experiments of hydrothermal time and temperature were carried out. The effect of ammonium citrate addition was investigated. The as-synthesized photocatalysts were characterized via X-ray diffraction, scanning and transmission electron microscopy, Fourier transform infrared spectrum and elemental analysis. The adsorption and photocatalytic performance of as-synthesized photocatalysts were studied, 0.2N-CQDs/BiOI showed the best performance. For the removal of anionic dye RhB, adsorption occupied a major position. The maximum adsorption capacity was 97.09[Formula: see text]mg/g for RhB. For the removal of cationic dyes X3B, photocatalysis occupied a major position. The photocatalytic activity of 0.2N-CQDs/BiOI was superior to that of nano-TiO2 under the simulate sunlight irradiation. Different scavengers were used to analyze the effect of active species and photocatalytic degradation mechanism of X3B. The outstanding stability and performance make 0.2N-CQDs/BiOI has highly potential applications in wastewater treatment.
{"title":"Fabrication of N-Doped Carbon Quantum Dots/BiOI Nanocomposite and Its Efficient Photocatalytic Activity Under Visible-Light Irradiation","authors":"Yichang Yu, Ziyuyang Zheng, Wei Liao, Y. Yao, F. Peng, Tingting Chen, J. Wu, Li Feng","doi":"10.1142/s1793984421500033","DOIUrl":"https://doi.org/10.1142/s1793984421500033","url":null,"abstract":"A novel spherical N-CQDs/BiOI photocatalyst was successfully synthesized through a facile solvothermal method. The optimization experiments of hydrothermal time and temperature were carried out. The effect of ammonium citrate addition was investigated. The as-synthesized photocatalysts were characterized via X-ray diffraction, scanning and transmission electron microscopy, Fourier transform infrared spectrum and elemental analysis. The adsorption and photocatalytic performance of as-synthesized photocatalysts were studied, 0.2N-CQDs/BiOI showed the best performance. For the removal of anionic dye RhB, adsorption occupied a major position. The maximum adsorption capacity was 97.09[Formula: see text]mg/g for RhB. For the removal of cationic dyes X3B, photocatalysis occupied a major position. The photocatalytic activity of 0.2N-CQDs/BiOI was superior to that of nano-TiO2 under the simulate sunlight irradiation. Different scavengers were used to analyze the effect of active species and photocatalytic degradation mechanism of X3B. The outstanding stability and performance make 0.2N-CQDs/BiOI has highly potential applications in wastewater treatment.","PeriodicalId":44929,"journal":{"name":"Nano Life","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45479716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：