Sensors design based on hybrid gold-silica nanostructures

Bagheri, Elnaz; Ansari, Legha; Sameiyan, Elham; Abnous, Khalil; Taghdisi, Seyed Mohammad; Ramezani, Mohammad; Alibolandi, Mona

doi:10.1016/j.bios.2020.112054

Cited by 29 publications

(20 citation statements)

References 75 publications

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“…136 Among various types of spacer layers, silica is highly regarded for its ease preparation, thickness controllability, light transparency, stability and biocompatibility. 154 So far, such silica-coated core-shell NPs have been taken as the most successful class of hybrid plasmonic colloids. Various functions of silica shells are summarized in ref.…”

Section: Mef-based Fluorescence Sensing For Environmental Analysis 2mentioning

confidence: 99%

Recent progress in sensing application of metal nanoarchitecture-enhanced fluorescence

Wang

Zheng

et al. 2021

Nanoscale Adv.

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Section: Mef-based Fluorescence Sensing For Environmental Analysis 2mentioning

confidence: 99%

Recent progress in sensing application of metal nanoarchitecture-enhanced fluorescence

Wang

Zheng

et al. 2021

Nanoscale Adv.

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“…[46]. Magnetic silica hybrids were reported as fluorescent, colorimetric, electrochemical and Surface-enhanced raman spectroscopy (SERS) sensing probes [71]. Inorganic mesoporous material is one of the best materials as molecular catalysts due to its thermal stability, easy production and modification.…”

Section: Hybrid Nanocompositesmentioning

confidence: 99%

The Novel Nanomaterials Based Biosensors and Their Applications

Şensoy¹,

Muti²

2021

Novel Nanomaterials

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Since the development of the first biosensor reported, biosensor has received considerable attention due to its high selectivity and sensitivity. Biosensors are highly pursued in order to meet the growing demands and challenges in a large number of analytic applications such as medical diagnosis, food safety control, environmental monitoring, or even military defense. Due to the unique physical, chemical, mechanical and electrical properties, nanomaterials have been widely investigated for their ability and used to fabricate sensors. High surface to volume ratio, good stability, excellent electrocatalytic properties of the nanomaterials plays an important role in the sensitive and selective detection of biomolecules. The synthesis of new nanomaterials with different properties is increasingly common in order to improve these counted properties of nanomaterials. This chapter gives an overview of the importance of the development of novel nanomaterials based biosensors technologies. The use of different funtionalized carbon nanomaterilas, metal oxide nanoparticles, metal nanoparticles, polymeric nanoparticles, quantum dots, graphene sheets and other novel nanomaterials in biosensor technology, and their innovations and advantages are discussed.

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“…[2][3][4] In its simplest form, detection is performed directly on a metallic surface, [3] whereas ultrasensitive detection schemes often add DOI: 10.1002/adhm.202102035 inorganic nanomaterials for additional amplification steps. [5] Gold and other novel metal nanoparticles have both been described in this regard while hybrid materials [6][7][8] offer helpful one-step systems for purification and sensing. We and others have also described plasmonic nanomaterials to enhance analytical signal.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Gold Nanoparticles with Idealized Coating for Enhanced Point‐Of‐Care Sensing

Gessner

Park

Lin

et al. 2021

Adv Healthcare Materials

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Magnetic nanoparticles with hybrid sensing functions are in wide use for bioseparation, sensing, and in vivo imaging. Yet, nonspecific protein adsorption to the particle surface continues to present a technical challenge and diminishes the theoretical protein detection capabilities. Here, a magneto-plasmonic nanoparticle synthesis is developed that minimizes nonspecific protein adsorption. Building on the success of zwitterionic polymers, a highly stable and anergic nanomaterial, magnetic gold nanoparticles with idealized coating (MAGIC) is obtained with significantly lower serum protein adsorption compared to control nanoparticles coated with commonly used polymers (polyethylene glycol, polyethylenimine, or polyallylamine hydrochloride). MAGIC nanoparticles are able to sense specific bladder cancer biomarkers at low levels and in the presence of other proteins. This strategy may find wide spread applications for in vitro and in vivo sensing as well as isolations.

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Sensors design based on hybrid gold-silica nanostructures

Cited by 29 publications

References 75 publications

Recent progress in sensing application of metal nanoarchitecture-enhanced fluorescence

Recent progress in sensing application of metal nanoarchitecture-enhanced fluorescence

The Novel Nanomaterials Based Biosensors and Their Applications

Magnetic Gold Nanoparticles with Idealized Coating for Enhanced Point‐Of‐Care Sensing

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