메뉴 건너뛰기




Volumn 30, Issue 24, 2014, Pages 7168-7176

Inner structure of adsorbed ionic microgel particles

Author keywords

[No Author keywords available]

Indexed keywords

ATOMIC FORCE MICROSCOPY; CARBOXYLIC ACIDS; HYDROGELS; NEUTRON SCATTERING;

EID: 84903185136     PISSN: 07437463     EISSN: 15205827     Source Type: Journal    
DOI: 10.1021/la500390j     Document Type: Article
Times cited : (43)

References (59)
  • 1
    • 28744449004 scopus 로고    scopus 로고
    • Soft Nanotechnology with Soft Nanoparticles
    • Nayak, S.; Lyon, L. A. Soft Nanotechnology with Soft Nanoparticles Angew. Chem. Int. Ed. 2005, 44, 7686-7708
    • (2005) Angew. Chem. Int. Ed , vol.44 , pp. 7686-7708
    • Nayak, S.1    Lyon, L.A.2
  • 2
    • 84859906479 scopus 로고    scopus 로고
    • The Polymer/Colloid Duality of Microgel Suspensions
    • Lyon, L. A.; Fernandez-Nieves, A. The Polymer/Colloid Duality of Microgel Suspensions Annu. Rev. Phys. Chem. 2012, 63, 25-43
    • (2012) Annu. Rev. Phys. Chem , vol.63 , pp. 25-43
    • Lyon, L.A.1    Fernandez-Nieves, A.2
  • 3
    • 33947188148 scopus 로고    scopus 로고
    • "smart" nanoparticles: Preparation, characterization and applications
    • Ballauff, M.; Lu, Y. "Smart" nanoparticles: Preparation, characterization and applications Polymer 2007, 48, 1815-1823
    • (2007) Polymer , vol.48 , pp. 1815-1823
    • Ballauff, M.1    Lu, Y.2
  • 4
    • 44949208301 scopus 로고    scopus 로고
    • Polymerization of Oligo(Ethylene Glycol) (Meth)Acrylates: Toward New Generations of Smart Biocompatible Materials
    • Lutz, J. F. Polymerization of Oligo(Ethylene Glycol) (Meth)Acrylates: Toward New Generations of Smart Biocompatible Materials J. Polym. Sci., Part A: Polym. Chem. 2008, 46, 3459-3470
    • (2008) J. Polym. Sci., Part A: Polym. Chem , vol.46 , pp. 3459-3470
    • Lutz, J.F.1
  • 5
    • 0033079933 scopus 로고    scopus 로고
    • Microgel particles as model colloids: Theory, properties and applications
    • Saunders, B. R.; Vincent, B. Microgel particles as model colloids: theory, properties and applications Adv. Colloid Interface Sci. 1999, 80, 1-25
    • (1999) Adv. Colloid Interface Sci , vol.80 , pp. 1-25
    • Saunders, B.R.1    Vincent, B.2
  • 7
    • 84963177028 scopus 로고
    • Static and time-dependent properties of polymer gels around the volume phase transition
    • Hirotsu, S. Static and time-dependent properties of polymer gels around the volume phase transition Phase Transitions 1994, 47, 183-240
    • (1994) Phase Transitions , vol.47 , pp. 183-240
    • Hirotsu, S.1
  • 8
    • 0031143895 scopus 로고    scopus 로고
    • Light Scattering Study of Spherical Poly(N-isopropylacrylamide) Microgels
    • Wu, C.; Zhou, S. Light Scattering Study of Spherical Poly(N- isopropylacrylamide) Microgels J. Macromol. Sci., Part B: Phys. 1997, 36, 345-355
    • (1997) J. Macromol. Sci., Part B: Phys , vol.36 , pp. 345-355
    • Wu, C.1    Zhou, S.2
  • 10
    • 26344476500 scopus 로고
    • Small angle neutron scattering study on poly(N-isopropyl acrylamide) gels near their volume-phase transition
    • Shibayama, M.; Tanaka, T.; Han, C. C. Small angle neutron scattering study on poly(N-isopropyl acrylamide) gels near their volume-phase transition J. Chem. Phys. 1992, 97, 6829-6841
    • (1992) J. Chem. Phys , vol.97 , pp. 6829-6841
    • Shibayama, M.1    Tanaka, T.2    Han, C.C.3
  • 11
  • 13
    • 4243448815 scopus 로고
    • Volume-phase transitions of ionized N-isopropylacrylamide gels
    • Hirotsu, S. Volume-phase transitions of ionized N-isopropylacrylamide gels J. Chem. Phys. 1987, 87, 1392-1395
    • (1987) J. Chem. Phys , vol.87 , pp. 1392-1395
    • Hirotsu, S.1
  • 14
    • 52049085333 scopus 로고    scopus 로고
    • Characterizing charge and crosslinker distributions in polyelectrolyte microgels
    • Hoare, T. R.; Pelton, R. Characterizing charge and crosslinker distributions in polyelectrolyte microgels Curr. Opin. Colloid Interface Sci. 2008, 13, 413-428
    • (2008) Curr. Opin. Colloid Interface Sci , vol.13 , pp. 413-428
    • Hoare, T.R.1    Pelton, R.2
  • 16
    • 14044269996 scopus 로고    scopus 로고
    • Equilibrium and Kietic Aspects of the Uptake of Poly(etylene oxide) by Copolymer Microgel Particles of N-Isopropylacrylamide and Acrylic Acid
    • Bradley, M.; Ramos, J.; Vincent, B. Equilibrium and Kietic Aspects of the Uptake of Poly(etylene oxide) by Copolymer Microgel Particles of N-Isopropylacrylamide and Acrylic Acid Langmuir 2005, 21, 1209-1215
    • (2005) Langmuir , vol.21 , pp. 1209-1215
    • Bradley, M.1    Ramos, J.2    Vincent, B.3
  • 17
    • 80054980820 scopus 로고    scopus 로고
    • Tunable Encapsulation of Proteins within Charged Microgels
    • Smith, M. H.; Lyon, L. A. Tunable Encapsulation of Proteins within Charged Microgels Macromolecules 2011, 44, 8154-8160
    • (2011) Macromolecules , vol.44 , pp. 8154-8160
    • Smith, M.H.1    Lyon, L.A.2
  • 18
    • 0037159983 scopus 로고    scopus 로고
    • Experimental evidence for two thermodynamic length scales in neutralized polyacrylate gels
    • Horkay, F.; Hecht, A.; Grillo, I.; Basser, P. J.; Geissler, E. Experimental evidence for two thermodynamic length scales in neutralized polyacrylate gels J. Chem. Phys. 2002, 117, 9103-9106
    • (2002) J. Chem. Phys , vol.117 , pp. 9103-9106
    • Horkay, F.1    Hecht, A.2    Grillo, I.3    Basser, P.J.4    Geissler, E.5
  • 19
    • 33846017310 scopus 로고    scopus 로고
    • Similarities between Polyelectrolyte Gels and Biopolymer Solutions
    • Horkay, F.; Hecht, A.; Geissler, E. Similarities Between Polyelectrolyte Gels and Biopolymer Solutions J. Polym. Sci., Part B: Polym. Phys. 2006, 44, 3679-3686
    • (2006) J. Polym. Sci., Part B: Polym. Phys , vol.44 , pp. 3679-3686
    • Horkay, F.1    Hecht, A.2    Geissler, E.3
  • 20
    • 0038706408 scopus 로고    scopus 로고
    • Counterion penetration and effective electrostatic interactions in solutions of polyelectrolyte stars and microgels
    • Denton, A. R. Counterion penetration and effective electrostatic interactions in solutions of polyelectrolyte stars and microgels Phys. Rev. E 2003, 67, 011804
    • (2003) Phys. Rev. e , vol.67 , pp. 011804
    • Denton, A.R.1
  • 21
    • 22944439710 scopus 로고    scopus 로고
    • Ionic micro gels a model systems for colloids with an ultrasoft electrostatic repulsion: Structure and thermodynamics
    • Gottwald, D.; Likos, C. N.; Kahl, G.; Loewen, H. Ionic micro gels a model systems for colloids with an ultrasoft electrostatic repulsion: Structure and thermodynamics J. Chem. Phys. 2005, 122, 074903
    • (2005) J. Chem. Phys , vol.122 , pp. 074903
    • Gottwald, D.1    Likos, C.N.2    Kahl, G.3    Loewen, H.4
  • 22
    • 35948953143 scopus 로고    scopus 로고
    • Functionalized Microgel Swelling: Comparing Theory and Experiment
    • Hoare, T.; Pelton, R. Functionalized Microgel Swelling: Comparing Theory and Experiment J. Phys. Chem. B 2007, 111, 11895-11906
    • (2007) J. Phys. Chem. B , vol.111 , pp. 11895-11906
    • Hoare, T.1    Pelton, R.2
  • 23
    • 57449120922 scopus 로고    scopus 로고
    • Structural Ordering and Phase Behavior of Charged Microgels
    • Mohanty, P. S.; Richtering, W. Structural Ordering and Phase Behavior of Charged Microgels J. Phys. Chem. B 2008, 112, 14692-14697
    • (2008) J. Phys. Chem. B , vol.112 , pp. 14692-14697
    • Mohanty, P.S.1    Richtering, W.2
  • 27
    • 77954828649 scopus 로고    scopus 로고
    • Swelling and mechanical properties of polymer gels with cross-linking gradient
    • Fernandez, P.; Schmidt, S.; Zeiser, M.; Fery, A.; Hellweg, T. Swelling and mechanical properties of polymer gels with cross-linking gradient Soft Matter 2010, 6, 3455-3458
    • (2010) Soft Matter , vol.6 , pp. 3455-3458
    • Fernandez, P.1    Schmidt, S.2    Zeiser, M.3    Fery, A.4    Hellweg, T.5
  • 29
    • 34248346787 scopus 로고    scopus 로고
    • Bimodal Swelling Responses in Microgel Thin Films
    • Sorrell, C. D.; Lyon, L. A. Bimodal Swelling Responses in Microgel Thin Films J. Phys. Chem. B 2007, 111, 4060-4066
    • (2007) J. Phys. Chem. B , vol.111 , pp. 4060-4066
    • Sorrell, C.D.1    Lyon, L.A.2
  • 30
    • 47949110884 scopus 로고    scopus 로고
    • Deformation Controlled Assembly of Binary Microgel Thin Films
    • Sorrell, C. D.; Lyon, L. A. Deformation Controlled Assembly of Binary Microgel Thin Films Langmuir 2008, 24, 7216-7222
    • (2008) Langmuir , vol.24 , pp. 7216-7222
    • Sorrell, C.D.1    Lyon, L.A.2
  • 31
    • 77951239108 scopus 로고    scopus 로고
    • Centrifugal Deposition of Microgels for the Rapid Assembly of Nonfouling Thin Films
    • South, A. B.; Whitmire, R. E.; Garcia, A. J.; Lyon, L. A. Centrifugal Deposition of Microgels for the Rapid Assembly of Nonfouling Thin Films ACS Appl. Mater. Interfaces 2009, 1, 2747-2754
    • (2009) ACS Appl. Mater. Interfaces , vol.1 , pp. 2747-2754
    • South, A.B.1    Whitmire, R.E.2    Garcia, A.J.3    Lyon, L.A.4
  • 32
    • 77957592535 scopus 로고    scopus 로고
    • Adhesion and Mechanical Properties of PNIPAM Microgel Films and their Potential Use as Switchable Cell Culture Substrates
    • Schmidt, S.; Zeiser, M.; Hellweg, T.; Duschl, C.; Fery, A.; Möhwald, H. Adhesion and Mechanical Properties of PNIPAM Microgel Films and their Potential Use as Switchable Cell Culture Substrates Adv. Funct. Mater. 2010, 20, 3235-3243
    • (2010) Adv. Funct. Mater , vol.20 , pp. 3235-3243
    • Schmidt, S.1    Zeiser, M.2    Hellweg, T.3    Duschl, C.4    Fery, A.5    Möhwald, H.6
  • 33
    • 83455195536 scopus 로고    scopus 로고
    • Deswelling Kinetics of Color Tunable Poly(N-Isopropylacrylamide) Microgel-Based Etalons
    • Carter, M. C. D.; Sorrell, C. D.; Serpe, M. J. Deswelling Kinetics of Color Tunable Poly(N-Isopropylacrylamide) Microgel-Based Etalons J. Phys. Chem. B 2011, 115, 14359-14368
    • (2011) J. Phys. Chem. B , vol.115 , pp. 14359-14368
    • Carter, M.C.D.1    Sorrell, C.D.2    Serpe, M.J.3
  • 35
    • 0034078167 scopus 로고    scopus 로고
    • Influence of charge density on the swelling of colloidal poly(N-isopropylacrylamide-co-acrylic acid) microgels
    • Kratz, K.; Hellweg, T.; Eimer, W. Influence of charge density on the swelling of colloidal poly(N-isopropylacrylamide-co-acrylic acid) microgels Colloids Surf., A 2000, 170, 137-149
    • (2000) Colloids Surf., A , vol.170 , pp. 137-149
    • Kratz, K.1    Hellweg, T.2    Eimer, W.3
  • 36
    • 33748634930 scopus 로고    scopus 로고
    • Colloidal copolymer microgels of N-isopropylacrylamide and acrylic acid: PH, ionic strength and temperature effects
    • Snowden, M. J.; Chowdhry, B. Z.; Vincent, B.; Morris, G. E. Colloidal copolymer microgels of N-isopropylacrylamide and acrylic acid: pH, ionic strength and temperature effects J. Chem. Soc., Faraday Trans. 1996, 92, 5013-5016
    • (1996) J. Chem. Soc., Faraday Trans , vol.92 , pp. 5013-5016
    • Snowden, M.J.1    Chowdhry, B.Z.2    Vincent, B.3    Morris, G.E.4
  • 37
    • 84861786690 scopus 로고    scopus 로고
    • The Effect of Co-Monomer Content on the Swelling/Shrinking and Mechanical Behaviour of Individually Adsorbed PNIPAM Microgel Particles
    • Burmistrova, A.; Richter, M.; Eisele, M.; Üzüm, C.; von Klitzing, R. The Effect of Co-Monomer Content on the Swelling/Shrinking and Mechanical Behaviour of Individually Adsorbed PNIPAM Microgel Particles Polymers 2011, 3, 1575-1590
    • (2011) Polymers , vol.3 , pp. 1575-1590
    • Burmistrova, A.1    Richter, M.2    Eisele, M.3    Üzüm, C.4    Von Klitzing, R.5
  • 38
    • 33745743314 scopus 로고    scopus 로고
    • Swelling and Deswelling of Adsorbed Microgel Monolayers Triggered by Changes in Temperature, pH, and Electrolyte Concentration
    • Nerapusri, V.; Keddie, J. L.; Vincent, B.; Bushnak, I. A. Swelling and Deswelling of Adsorbed Microgel Monolayers Triggered by Changes in Temperature, pH, and Electrolyte Concentration Langmuir 2006, 22, 5036-5041
    • (2006) Langmuir , vol.22 , pp. 5036-5041
    • Nerapusri, V.1    Keddie, J.L.2    Vincent, B.3    Bushnak, I.A.4
  • 39
    • 33845505285 scopus 로고    scopus 로고
    • Volume phase transition of smart micro gels in bulk solution and adsorbed at an interface: A combined AFM, dynamic light, and small angle neutron scattering study
    • Höfl, S.; Zitzler, L.; Hellweg, T.; Herminghaus, S.; Mugele, F. Volume phase transition of smart micro gels in bulk solution and adsorbed at an interface: A combined AFM, dynamic light, and small angle neutron scattering study Polymer 2007, 48, 245-254
    • (2007) Polymer , vol.48 , pp. 245-254
    • Höfl, S.1    Zitzler, L.2    Hellweg, T.3    Herminghaus, S.4    Mugele, F.5
  • 40
    • 41349103619 scopus 로고    scopus 로고
    • Structural modifications in the swelling of inhomogeneous microgels by light and neutron scattering
    • Fernández-Barbero, A.; Fernández-Nieves, A.; Grillo, I.; López-Cabarcos, E. Structural modifications in the swelling of inhomogeneous microgels by light and neutron scattering Phys. Rev. E 2002, 66, 051803
    • (2002) Phys. Rev. e , vol.66 , pp. 051803
    • Fernández-Barbero, A.1    Fernández-Nieves, A.2    Grillo, I.3    López-Cabarcos, E.4
  • 41
    • 33746271878 scopus 로고    scopus 로고
    • Temperature-Sensitive Core-Shell Microgel Particles with Dense Shell
    • Berndt, I.; Pedersen, J. S.; Richtering, W. Temperature-Sensitive Core-Shell Microgel Particles with Dense Shell Angew. Chem., Int. Ed. 2006, 45, 1737-1741
    • (2006) Angew. Chem., Int. Ed , vol.45 , pp. 1737-1741
    • Berndt, I.1    Pedersen, J.S.2    Richtering, W.3
  • 42
    • 30344476695 scopus 로고    scopus 로고
    • Influence of Shell Thickness and Cross-Link Density on the Structure of Temperature-Sensitive Poly-N-Isopropylacrylamide-Poly-N-Isopropylmethacrylamide Core-Shell Microgels Investigated by Small-Angle Neutron Scattering
    • Ingo Berndt, P. L.; Jan Skov, Pedersen; Richtering, W. Influence of Shell Thickness and Cross-Link Density on the Structure of Temperature-Sensitive Poly-N-Isopropylacrylamide-Poly-N-Isopropylmethacrylamide Core-Shell Microgels Investigated by Small-Angle Neutron Scattering Langmuir 2006, 22, 459-468
    • (2006) Langmuir , vol.22 , pp. 459-468
    • Ingo Berndt, P.L.1    Jan Skov, P.2    Richtering, W.3
  • 43
    • 1942521722 scopus 로고    scopus 로고
    • Small-angle neutron scattering study of structural changes in temperature sensitive microgel colloid
    • Stieger, M.; Richtering, W.; Pedersen, J. S.; Lindner, P. Small-angle neutron scattering study of structural changes in temperature sensitive microgel colloid J. Chem. Phys. 2004, 120, 6197-6206
    • (2004) J. Chem. Phys , vol.120 , pp. 6197-6206
    • Stieger, M.1    Richtering, W.2    Pedersen, J.S.3    Lindner, P.4
  • 44
    • 84872190016 scopus 로고    scopus 로고
    • Grazing incidence small-angle neutron scattering: Challenges and possibilities
    • Müller-Buschbaum, P. Grazing incidence small-angle neutron scattering: challenges and possibilities Polym. J. 2013, 45, 34-42
    • (2013) Polym. J , vol.45 , pp. 34-42
    • Müller-Buschbaum, P.1
  • 45
    • 0141579861 scopus 로고    scopus 로고
    • Probing the in-plane composition of thin polymer films with grazing-incidence small angle scattering and atomic force microscopy
    • Müller-Buschbaum, P.; Gutmann, J. S.; Cubitt, R.; Stamm, M. Probing the in-plane composition of thin polymer films with grazing-incidence small angle scattering and atomic force microscopy Colloid Polym. Sci. 1999, 277, 1193
    • (1999) Colloid Polym. Sci , vol.277 , pp. 1193
    • Müller-Buschbaum, P.1    Gutmann, J.S.2    Cubitt, R.3    Stamm, M.4
  • 47
    • 0033622088 scopus 로고    scopus 로고
    • Temperature-sensitive aqueous microgels
    • Pelton, R. Temperature-sensitive aqueous microgels Adv. Colloid Interface Sci. 2000, 85, 1-33
    • (2000) Adv. Colloid Interface Sci , vol.85 , pp. 1-33
    • Pelton, R.1
  • 48
    • 41549148288 scopus 로고    scopus 로고
    • Hydrogels in drug delivery: Progress and challenges
    • Hoare, T. R.; Kohane, D. S. Hydrogels in drug delivery: Progress and challenges Polymer 2008, 49, 1993-2007
    • (2008) Polymer , vol.49 , pp. 1993-2007
    • Hoare, T.R.1    Kohane, D.S.2
  • 49
    • 0030734397 scopus 로고    scopus 로고
    • Scattering profiles of Charged Gels: Frozen Inhomogeneities, Thermal Fluctuations, and Microphase Separation
    • Rabin, Y.; Panyukov, S. Scattering profiles of Charged Gels: Frozen Inhomogeneities, Thermal Fluctuations, and Microphase Separation Macromolecules 1997, 30, 301-312
    • (1997) Macromolecules , vol.30 , pp. 301-312
    • Rabin, Y.1    Panyukov, S.2
  • 50
    • 33847710347 scopus 로고    scopus 로고
    • Microstructure of N-Isopropylacrylamide-Acrylic Acid Copolymer Gels Having Different Spatial Configurations of Weakly Charged Groups
    • Ikkai, F.; Suzuki, T.; Karino, T.; Shibayama, M. Microstructure of N-Isopropylacrylamide-Acrylic Acid Copolymer Gels Having Different Spatial Configurations of Weakly Charged Groups Macromolecules 2007, 40, 1140-1146
    • (2007) Macromolecules , vol.40 , pp. 1140-1146
    • Ikkai, F.1    Suzuki, T.2    Karino, T.3    Shibayama, M.4
  • 52
    • 84956232700 scopus 로고
    • Determination of the height-height correlation function of rough surfaces from diffuse X-ray scattering
    • Salditt, T.; Metzger, T. H.; Peisl, J.; Reinker, B.; Moske, M.; Samwer, K. Determination of the height-height correlation function of rough surfaces from diffuse X-ray scattering Europhys. Lett. 1995, 32, 331
    • (1995) Europhys. Lett , vol.32 , pp. 331
    • Salditt, T.1    Metzger, T.H.2    Peisl, J.3    Reinker, B.4    Moske, M.5    Samwer, K.6
  • 53
    • 0344950386 scopus 로고    scopus 로고
    • Elastic Properties of Poly(N-isopropylacrylamide) and Poly(acrylamide) Hydrogels Studied by Scanning Force Microscopy
    • Matzelle, T. R.; Geuskens, G.; Kruse, N. Elastic Properties of Poly(N-isopropylacrylamide) and Poly(acrylamide) Hydrogels Studied by Scanning Force Microscopy Macromolecules 2003, 36, 2926-2931
    • (2003) Macromolecules , vol.36 , pp. 2926-2931
    • Matzelle, T.R.1    Geuskens, G.2    Kruse, N.3
  • 54
    • 0343396781 scopus 로고    scopus 로고
    • Structural changes in PNIPAM microgel particles as seen by SANS, DLS, and em techniques
    • Kratz, K.; Hellweg, T.; Eimer, W. Structural changes in PNIPAM microgel particles as seen by SANS, DLS, and EM techniques Polymer 2001, 42, 6531-6539
    • (2001) Polymer , vol.42 , pp. 6531-6539
    • Kratz, K.1    Hellweg, T.2    Eimer, W.3
  • 56
    • 0001979620 scopus 로고    scopus 로고
    • Critical fluctuations of a binary fluid mixture confined in a porous medium
    • Formisano, F.; Teixeira, J. Critical fluctuations of a binary fluid mixture confined in a porous medium Eur. Phys. J. E 2000, 1, 1-4
    • (2000) Eur. Phys. J. e , vol.1 , pp. 1-4
    • Formisano, F.1    Teixeira, J.2
  • 57
    • 34547139504 scopus 로고    scopus 로고
    • Polyelectrolyte stars in planar confinement
    • Konieczny, M.; Likos, C. N. Polyelectrolyte stars in planar confinement J. Chem. Phys. 2006, 124, 214904-1-214904-12
    • (2006) J. Chem. Phys , vol.124 , pp. 2149041-21490412
    • Konieczny, M.1    Likos, C.N.2
  • 58
    • 84903153917 scopus 로고    scopus 로고
    • Intelligent Hydrogels; Sadowski, G. Richtering, W. Progress in Colloid and Polymer Science; Springer: Cham
    • Karg, M.; Prévost, S.; Brandt, A.; Wallacher, D.; von Klitzing, R.; Hellweg, T. In Intelligent Hydrogels; Sadowski, G.; Richtering, W., Eds.; Progress in Colloid and Polymer Science; Springer: Cham, 2013; Vol. 140; pp 63-76
    • (2013) , vol.140 , pp. 63-76
    • Karg, M.1    Prévost, S.2    Brandt, A.3    Wallacher, D.4    Von Klitzing, R.5    Hellweg, T.6
  • 59
    • 77953073596 scopus 로고    scopus 로고
    • Control of number density and swelling/shrinking behavior of P(NIPAM-AAc) particles at solid surfaces
    • Burmistrova, A.; von Klitzing, R. Control of number density and swelling/shrinking behavior of P(NIPAM-AAc) particles at solid surfaces J. Mater. Chem. 2010, 20, 3502-3507
    • (2010) J. Mater. Chem , vol.20 , pp. 3502-3507
    • Burmistrova, A.1    Von Klitzing, R.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.