This review covers extensively the synthesis&surface modification,characterization,and application of magnetic nanoparticles.For biomedical applications,consideration should be given to factors such as design stra...This review covers extensively the synthesis&surface modification,characterization,and application of magnetic nanoparticles.For biomedical applications,consideration should be given to factors such as design strategies,the synthesis process,coating,and surface passivation.The synthesis method regulates post-synthetic change and specific applications in vitro and in vivo imaging/diagnosis and pharmacotherapy/administration.Special insights have been provided on biodistribution,pharmacokinetics,and toxicity in a living system,which is imperative for their wider application in biology.These nanoparticles can be decorated with multiple contrast agents and thus can also be used as a probe for multi-mode imaging or double/triple imaging,for example,MRI-CT,MRI-PET.Similarly loading with different drug molecules/dye/fluorescent molecules and integration with other carriers have found application not only in locating these particles in vivo but simultaneously target drug delivery/hyperthermia inside the body.Studies are underway to collect the potential of these magnetically driven nanoparticles in various scientific fields such as particle interaction,heat conduction,imaging,and magnetism.Surely,this comprehensive data will help in the further development of advanced techniques for theranostics based on high-performance magnetic nanoparticles and will lead this research area in a new sustainable direction.展开更多
Current evidence of concept analyses recommending nanotechnology for biomedical uses abounds in recent research. The area of biotechnology interfaces with nanostructures, reconfigures their composition, and alters the...Current evidence of concept analyses recommending nanotechnology for biomedical uses abounds in recent research. The area of biotechnology interfaces with nanostructures, reconfigures their composition, and alters their characteristics;which influences the dispersion of the particles, the biotransformation they cause, and their potential toxic effect. It is vital to link the idea of the lifecycle of nanostructures to the biological impacts and use methodologies to identify, estimate, and track the gradual bioprocessing of nanostructures in vivo, from a body-wide level to a nanoscopic size. This is necessary because understanding how nanostructures processing, degradation, persistence, and recycling predict potential exposure risks. The safe implementation of nanotechnology-based products in biomedical applications necessitates an extensive understanding of the recycling and transformations of nanomaterials in a living organism. Long-term fate in the body is crucial, as it governs potential environmental risks to human health. Strategies may be used to manage the long-term outcome of nanostructures in an organism since, in addition to composition, their design also affects how long they last and how easily they degrade. The lifespan of nanoparticles, a flexible and biocompatible category of nanostructures that have made it into clinical trials, is the subject of this article. Strategies may be used to manage the long-term outcome of nanoparticles in an organism since, in addition to composition, their design also affects how long they last and how easily they degrade. This review explained the safety of nanoscale materials, biotransformation, and the multifunctional recycling mechanism of nanostructures.展开更多
Hemangiomas are the most common benign vascular tumours of the pediatric age group.They originate from embryonic remnants of unipotent angioblastic cells.The liver is the most common site for hemangioma in the abdomen...Hemangiomas are the most common benign vascular tumours of the pediatric age group.They originate from embryonic remnants of unipotent angioblastic cells.The liver is the most common site for hemangioma in the abdomen.1 The prevalence of hepatic hemangioma(HH)varies from 1%to 20%in the general popula-tion,and it is two to five times more common in women.HH is usually detected incidentally and shows no symptoms;therefore,most of the time it does not require any treatment.2 However,hemangioma may sometimes occur at the atypical location and present with unusual clinical manifestations within the abdominal cavity.Due to these reasons,it leads to diag-nostic confusion,resulting in their inadvertent surgical excision.12 We present here a case of intra-abdominal hemangioma in an infant who presented with the signs and symptoms of intestinal obstruction.展开更多
基金Parveen Kumar acknowledges the department of science and technology(DST)New Delhi for the INSPIRE(Innovation in Science Pursuit for Inspired Research)-Faculty grant.
文摘This review covers extensively the synthesis&surface modification,characterization,and application of magnetic nanoparticles.For biomedical applications,consideration should be given to factors such as design strategies,the synthesis process,coating,and surface passivation.The synthesis method regulates post-synthetic change and specific applications in vitro and in vivo imaging/diagnosis and pharmacotherapy/administration.Special insights have been provided on biodistribution,pharmacokinetics,and toxicity in a living system,which is imperative for their wider application in biology.These nanoparticles can be decorated with multiple contrast agents and thus can also be used as a probe for multi-mode imaging or double/triple imaging,for example,MRI-CT,MRI-PET.Similarly loading with different drug molecules/dye/fluorescent molecules and integration with other carriers have found application not only in locating these particles in vivo but simultaneously target drug delivery/hyperthermia inside the body.Studies are underway to collect the potential of these magnetically driven nanoparticles in various scientific fields such as particle interaction,heat conduction,imaging,and magnetism.Surely,this comprehensive data will help in the further development of advanced techniques for theranostics based on high-performance magnetic nanoparticles and will lead this research area in a new sustainable direction.
文摘Current evidence of concept analyses recommending nanotechnology for biomedical uses abounds in recent research. The area of biotechnology interfaces with nanostructures, reconfigures their composition, and alters their characteristics;which influences the dispersion of the particles, the biotransformation they cause, and their potential toxic effect. It is vital to link the idea of the lifecycle of nanostructures to the biological impacts and use methodologies to identify, estimate, and track the gradual bioprocessing of nanostructures in vivo, from a body-wide level to a nanoscopic size. This is necessary because understanding how nanostructures processing, degradation, persistence, and recycling predict potential exposure risks. The safe implementation of nanotechnology-based products in biomedical applications necessitates an extensive understanding of the recycling and transformations of nanomaterials in a living organism. Long-term fate in the body is crucial, as it governs potential environmental risks to human health. Strategies may be used to manage the long-term outcome of nanostructures in an organism since, in addition to composition, their design also affects how long they last and how easily they degrade. The lifespan of nanoparticles, a flexible and biocompatible category of nanostructures that have made it into clinical trials, is the subject of this article. Strategies may be used to manage the long-term outcome of nanoparticles in an organism since, in addition to composition, their design also affects how long they last and how easily they degrade. This review explained the safety of nanoscale materials, biotransformation, and the multifunctional recycling mechanism of nanostructures.
文摘Hemangiomas are the most common benign vascular tumours of the pediatric age group.They originate from embryonic remnants of unipotent angioblastic cells.The liver is the most common site for hemangioma in the abdomen.1 The prevalence of hepatic hemangioma(HH)varies from 1%to 20%in the general popula-tion,and it is two to five times more common in women.HH is usually detected incidentally and shows no symptoms;therefore,most of the time it does not require any treatment.2 However,hemangioma may sometimes occur at the atypical location and present with unusual clinical manifestations within the abdominal cavity.Due to these reasons,it leads to diag-nostic confusion,resulting in their inadvertent surgical excision.12 We present here a case of intra-abdominal hemangioma in an infant who presented with the signs and symptoms of intestinal obstruction.
