Nano Structured Material MCQ

Test your knowledge with important Nano Structured Material MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Nano Structured Material MCQs at Bissoy

• Which of the following is an environment friendly preparation method of polymer nanoparticles?
  ক

  Ultrasonication

  খ

  Sol-gel method

  গ

  Citrate method

  ঘ

  Flame spray method
• Why are AgNPs-chitosan nanoparticles more efficient in inhibiting the growth of E-coli compared to either of AgNPs or Chitosan alone?
  ক

  They entrap drugs into their interior structure

  খ

  They enhance the leakage of intracellular constituents and proteins from the bacterial cells

  গ

  They have controlled release properties due to pH, temp and etc

  ঘ

  They are chemically modified
• Why is PHB (Poly-β-hydroxybutrate), a biosynthesized polymer widely used in suture surgery?
  ক

  It has sustained hypoglycemic effect beyond 24 hours

  খ

  It is a biosynthetic polymer

  গ

  It is a high molecular polymer

  ঘ

  It can degrade in vivo and hence does not require its removal after surgery
• Biodegradable nanostructured polymers can be classified into artificial as well as natural polymers.
  ক

  True

  খ

  False
• Why are nanoparticle based drugs preferred for therapeutic dosages over traditional drugs?
  ক

  Biodegradable

  খ

  High toxicity

  গ

  Increased active constituent absorption

  ঘ

  Sensitivity to salt ions
• Nanostructures of block copolymers have a lot of applications. Which of the following is not one of them?
  ক

  Catalysts

  খ

  Production of nanosized electronic devices

  গ

  Semitransparent antistatic coating

  ঘ

  Water reclamation
• Which among the following is an aggregate of molecules with hydrophilic heads and hydrophobic tails, in aqueous solutions?
  ক

  Vesicles

  খ

  Dendralysts

  গ

  Micelles

  ঘ

  Globules
• Performance of Chitosan derivatives is often better than Chitosan. Which process is not used in the synthesis of Chitosan derivatives?
  ক

  Alkylation

  খ

  Combustion

  গ

  Sulphation

  ঘ

  Quaternization
• Polyaniline and its analogs are used in LEDs. Which properties of the polymer accounts for this application?
  ক

  Electropositive and Electrophilic

  খ

  Electronegative and Chemophilic

  গ

  Electrochromic and Chemochromic

  ঘ

  Electrophilic and Chemochromic
• Nanoparticles of Chitosan, a natural polymeric material, have found a number of applications in the field of biomedical technology, owing to its advantageous behavior. Choose one option from the following that does not correspond to the advantages of Chitosan.
  ক

  Low water solubility

  খ

  Easily degradable

  গ

  Anti – microbial

  ঘ

  Innocuous
• These two monomers have similar structures, but with a slight difference of sulphur atom replaced by a nitrogen atom bonded to hydrogen. Which pair represents these monomers?
  ক

  Thiophene and Pyrrole

  খ

  Thiophene and Pyridine

  গ

  Pyrrole and Imidazole

  ঘ

  Piperidine and Pyrrole
• Which sequence is followed by the dendrimers of polyamidoamine during its divergent growth?
  ক

  2, 4, 8, 16 …

  খ

  3, 6, 12, 24 …

  গ

  3, 9, 27, 81 …

  ঘ

  5, 10, 20, 40 …
• What property of dendralysts accounts for its easy isolation from a reaction mixture?
  ক

  Large size

  খ

  Solid state

  গ

  Heterogeneous

  ঘ

  Catalytic nature
• Which polymers show the feature of electrical conductivity?
  ক

  Block copolymers

  খ

  Organic metals

  গ

  Polystyrene

  ঘ

  Bakelite
• There are several factors affecting the size of polymeric nanocrystals. Which of the following is not one of them?
  ক

  Temperature

  খ

  Concentration

  গ

  Surfactants

  ঘ

  Humidity
• What is the chemical reaction employing calcium hydroxide and hydrogen phosphate, yielding nanocrystals of Hydroxyapatite, known?
  ক

  Wet chemical deposition

  খ

  Mechanochemical Synthesis

  গ

  Reverse Microemulsions

  ঘ

  Flame Spray Synthesis.
• Which of the following ceramic nanoparticles is not used in gene delivery?
  ক

  Calcium carbonate

  খ

  Lead monoxide (PbO)

  গ

  Silica

  ঘ

  Calcium phosphate
• Ceramic nanoparticles are classified into three groups – ceramic nanoparticles, ceramic nanoscaffolds and ceramic nanoclays.
  ক

  False

  খ

  True
• Which ceramic nanoparticle when used as a thermal barrier coating in pure form can lead to catastrophe?
  ক

  Zirconia

  খ

  Alumina

  গ

  Mullite

  ঘ

  Hydroxyapatite
• Which 3D structure provides mechanical support for growing cells and tissues and also allows the interaction of cells and extracellular matrices minimizing cellular environment?
  ক

  Nano – Clays

  খ

  Nano – Scaffolds

  গ

  Nanometals

  ঘ

  Nanosemiconductors
• There have been recent advances in biomedical application for tissue engineering and bone repair owing to the different advantageous properties shown by ceramic nano-scaffolds. Which of the following property is not one of them?
  ক

  High Porosity

  খ

  High reactivity

  গ

  Greater Surface area

  ঘ

  High Structural Stability
• Silica nanoparticles are synthesized by Reverse Micro-Emulsion method. There are a few drawbacks of this technique. Which of the following is not one of them?
  ক

  Expensive

  খ

  Difficulties faced during removal of surfactants from final product

  গ

  Formation of agglomeration free nanoparticles

  ঘ

  Loss of disparity of the nanoparticles
• Hybrid nanospheres with this ceramic quantum dots possess efficient sensitivity and high selectivity that is used for donating and real time detecting nitric oxide. Which ceramic particle is it?
  ক

  Titanium oxide

  খ

  Zirconium

  গ

  Cadmium-selenide

  ঘ

  Sodium bicarbonate
• Shape of nanoceramic depends upon their preparation methods.
  ক

  True

  খ

  False
• High temperature flame decomposition of metal organic precursors produces silica nanoparticles. What is this process known as?
  ক

  Sol gel method

  খ

  Chemical vapour condensation

  গ

  Hydrothermal Synthesis

  ঘ

  Citrate method
• For the treatment of which disease ceramic nanoparticles are not used?
  ক

  Osteoporosis

  খ

  Whooping Cough

  গ

  Cancer

  ঘ

  Glaucoma
• These ceramic nanoparticles are surface functionalized with arginin-glycine-aspartic acid peptide ligands and radioiodine. They exhibit higher affinity and residence in tumours and peripherial blood fluids. What are they?
  ক

  Mesoporous silica nanoparticles

  খ

  Hydroxyapatite

  গ

  Multimodal silica nanoparticles

  ঘ

  Solid silica nanoparticles
• Which among the following properties is not shown by ceramic nanoparticles?
  ক

  Superplasticity

  খ

  Ferromagnetism

  গ

  Pyroelectricity

  ঘ

  Paramagnetism
• Which ceramic nano particle can rebound to its original state after repeated crushing without any structural damage?
  ক

  Nanotruss

  খ

  Polyethylene Glycol (PEG)

  গ

  Titanium Oxide

  ঘ

  Hydroxyapatite
• Which of the following methods do not form ceramic nano particles?
  ক

  Sol gel

  খ

  Sintering

  গ

  Reverse micro emulsion

  ঘ

  Saponification